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50results about How to "Operate naturally" patented technology

Mobile operation system

A mobile operation system comprises an intelligent dynamic icon, a quick voice assistant, a quick sliding assistant, an intelligent gesture, a full-screen application program interface, a full-domain application program icon interface, a quick full close and an important contact person program. According to the intelligent dynamic icon, icons of application programs in an updating state are automatically displayed on a main interface. By means of the quick voice assistant, the application programs can be directly started through voice without the internet. After the quick sliding assistant slides a regular shape on the main interface, the application programs can be directly started. The application programs can be direction started through the intelligent gesture according to movements of the user. According to the intelligent gesture, when the user takes out a mobile phone from a pocket, the system can be automatically waken up and automatic sliding unlocking can be achieved.
Owner:JIANG HONGMING

Human-computer interaction method for grapping and throwing dummy object and system thereof

The invention relates to a human-computer interaction method for grapping and throwing a dummy object and a system thereof. The method provided by the invention has work steps: (1) gaining data of a head and a hand, (2) realizing grapping recognition based on visual perception, (3) realizing throwing recognition based on magnetic tracking, (4) realizing the real rotation of a projectile. The system provided by the invention comprises a grapping recognition subsystem based on the visual perception, a throwing recognition subsystem based on the magnetic tracking and a path display subsystem with the real rotation. The invention can combine the consistency movement of snatching and throwing as an interactive method and uses the augmented-reality technique for taking the dummy object as a target to be snatched and thrown. The realization of the functions only needs an optical see-through helm and a magnetic tracker to be worn (a camera is not used); thereby a user can directly perceive the shocking effect of the scene. The invention has the advantages of natural operation, high real-time, and being economical and practical.
Owner:SHANGHAI UNIV

Portable pocket type intelligent electric vehicle

The invention particularly discloses a portable pocket type intelligent electric vehicle. The system mainly comprises a supporting plate, power wheels, universal wheels, a battery, a control system, pressure sensors, motors and transmission mechanisms. The number of the power wheels is two. The number of the universal wheels is two. The power wheels and the universal wheels are arranged in the positions, close to the front side and close to the rear side, of the bottom of the supporting plate respectively. The four wheels make contact with the ground and support the electric vehicle. The number of the motors and the number of the transmission mechanisms are both two, and the motors and the transmission mechanisms are installed at the bottom of the supporting plate. The motors drive the transmission mechanisms and supply power to the power wheels. The four pressure sensors are installed in the left front position, the left rear position, the right front position and the right rear position of the upper surface of the supporting plate respectively and used for detecting the gravity center of an operator. The control system carries out calculation according to the gravity center of the operator and the deviation of the center position, and controls the speed of the two power wheels. The system is small in size and convenient to carry, the electric vehicle is controlled through the gravity center of people, an operation rod is not needed, pedals are not needed, and operation is natural.
Owner:叶静

Human-computer interaction method and device based on integration of eye movement tracking and gesture recognition in virtual assembly

The invention provides a human-computer interaction method and a human-computer interaction device based on the integration of eye movement tracking and gesture recognition in a virtual assembly. Themethod comprises the steps: carrying out the gaze point tracking according to the obtained eye movement data; performing gesture recognition according to the obtained gesture information, labeling theobtained gesture recognition data and eye movement data to form a training set, and constructing a multi-stream convolutional neural network-long-term and short-term memory network model, wherein thenetwork model performs self-learning by using the training set; and applying the optimal network model obtained by training to a virtual assembly process, obtaining eye movement data and gesture information of the virtual assembly process, extracting eye movement and gesture features, and analyzing according to the feature information to obtain a behavior category of an operator so as to completean assembly task. The problem of misjudgment of similar behaviors in a single mode is solved. The advantages of a deep learning algorithm are utilized. The behaviors of operators in a video are recognized with high accuracy. A virtual assembly task is completed, and the man-machine interaction is achieved.
Owner:微晶数实(山东)装备科技有限公司

Intelligent loudspeaker box and control method thereof

The invention provides an intelligent loudspeaker box and a control method thereof. The intelligent loudspeaker box comprises a loudspeaker box body and at least one microphone installed on the loudspeaker box body. Besides, the intelligent loudspeaker box also includes a touch control board arranged on the loudspeaker box body, a multi-point touch control identification unit electrically connected with the touch control board, and a microphone switching control unit electrically connected with the multi-point touch control identification unit and the microphone. The multi-point touch control identification unit detects and identifies a touch control motion on the touch control board and sends touch control information corresponding to the identified touch control motion to the microphone switching control unit; and the microphone switching control unit controls the microphone to be turned on or off according to the received touch control information.
Owner:BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD +1

Artificial limb control method based on multiple sensor fusion

The invention discloses an artificial limb control method based on multiple sensor fusion, and relates to the technical field of artificial limbs. The artificial limb control method includes: by the aid of a first sensor, collecting electromyographic signals of spontaneous contraction of forearm muscles of an amputee; by the aid of the first sensor, detecting information of a second sensor and judging a wrist direction of an artificial limb of the amputee; triggering a camera device through muscular contraction after a wrist of the artificial limb is adjusted to a suitable grabbing posture, and shooting a grabbed object with the camera device; according to the grabbed objected shot by the camera device, determining a grabbing mode of the artificial limb by the aid of a third sensor, and controlling grabbing strength, for the object, of the artificial limb according to muscular contraction proportion of the amputee; ungrabbing the object through the muscular contraction by the amputee.The artificial limb control method based on multiple sensor fusion has the advantages that the amputee is enabled to control the artificial limb spontaneously and more naturally, no training is required, better experience can be obtained, and the artificial limb is more convenient to use.
Owner:SHANGHAI JIAO TONG UNIV

Human-computer interaction method and device for multi-person gesture based on kinect

The invention discloses a multi-person gesture human-computer interaction method and device based on Kinect, wherein, the method comprises the following steps: acquiring color image and depth image ofa scene through a Kinect camera, and acquiring human joint position and facial characteristic parameters of an operator in the scene; according to the human joint position and facial characteristic parameters, the cursor positions of operator's hands being obtained by light propagation along the straight line; the palm region image of the operator being segmented from the color image according tothe joint position of the human body, and the operation instructions being recognized and classified by a pre-trained gesture classification model. The method can be operated naturally and quickly without the help of other external equipments and adopts contactless interaction mode. The method and device can be used in hospital, scientific research and other special scenes, and can be used by more than one person at the same time, so as to meet the more complex interaction requirements in the future.
Owner:TSINGHUA UNIV

Coupling hook particularly for the lower arms of a three-point linkage of a tractor

The invention relates to a coupling hook, more particularly a coupling hook for the lower arms of a three-point linkage of a tractor, which is intended to attach an implement to a tractor by means of a coupling ball 11. The body 1 includes a housing 25 for a catch mechanism and a coupling throat 27 arranged to receive particularly the coupling ball 11, and a catch 2 rotating in the housing 25 for locking the coupling ball 11 into the coupling throat 27. In the free position, the catch 2 can rotate, thus permitting the coupling ball 11 to rise out of the coupling throat 27. The catch 2 is operated by an operating lever 3. The catch 2 is arranged to return the operating lever 3 to the locking position, when the coupling ball 11 rotates the catch, the catch rises out of the coupling throat.
Owner:LH ELEVATOR

Control sliding control method and device thereof

The invention provides a control sliding control method and a device thereof. The method and the device are applied in an Android system. The method comprises: determining whether a control has sliding trend of exceeding the edge of a desktop; if the control has sliding trend of exceeding the edge of the desktop, commanding the control to perform damping sliding. When the control exceeds the edge of a display interface, the control slides to simulate damping effect, so experience is more friendly, and operation is more natural.
Owner:LEMOBILE INFORMATION TECH BEIJING

Handheld input equipment and display position control method and device of indication icon of handheld input equipment

Disclosed is a display position control method for an indication icon of handheld input equipment comprises the steps of collecting a first image pointed by the handheld input equipment, and extracting image features of the first image; identifying a screen imaging area in the first image according to the image features; establishing a mapping model according to the screen imaging area; determining a pointing position of a screen reference surface corresponding to the current pointing of the handheld input equipment according to the mapping model, and if the pointing position is located in thescreen, determining a display position of the indication icon according to the pointing position; otherwise, setting the display position of the indication icon in a preset screen edge range or hiding the indication icon. Therefore, in the using process, even if the pointing direction of the handheld input device moves inside and outside the screen at will multiple times, the display position ofthe indication icon is kept consistent with the actual pointing position of the handheld input device, a user does not need to control the action amplitude in the operation process, use is natural, and user experience is good.
Owner:SHENZHEN GRIDMORE CREATIVE TECH CO LTD

Computer vision mouse

A computer vision mouse is designed to solve the problems that an existing mouse is high in requirement on desktop, the utilization environment of the existing mouse directly affects of cursor following stability, long-time operation of the existing mouse results in hand rigidity as the hand posture of a user operating the mouse is fixed, and the like. The computer vision mouse comprises a base provided with a vision processing system, and a camera and an ARM based microprocessor are inset in the vision processing system. The hand of the user is positioned in front of the camera, a plurality of frames of images are extracted through the ARM based microprocessor to detect movement and determine movement portions which are then matched with samples in a vision mouse hand movement model standard library or hand movement model personal habit sample library, and mouse orders corresponding to matched movement models and hand movement image information are transmitted to mouse software used with the vision mouse through a USB (universal serial bus) data line connected with a computer of the user, so that vision mouse system functions are realized. A mouse is replaced by the hand of the user, a mouse entity can be omitted, and the computer vision mouse is applicable to various planes and suspension operations. Operation of the computer vision mouse has no fixed requirement on hand posture, so that the user can stretch the hand naturally to operate the computer vision mouse more naturally and comfortably.
Owner:SHENYANG AEROSPACE UNIVERSITY

Conversation state processing method and device

InactiveCN106534501AGestures are naturalConvenient gesture operationDevices with sensorSubstation equipmentKey pressingComputer terminal
The invention is suitable for the field of data processing and provides a conversation state processing method which is applied to a terminal. A side frame of the terminal is provided with a touch control induction module. The method comprises steps of receiving a touch control operation input by the touch control induction module; and when the touch control operation meets the preset conversation state processing condition, processing the conversation state of the terminal. In the embodiment of the invention, a user does not need to carry out gesture operations or use specific entity buttons in a specific area of a display screen of the terminal. By the touch control induction module arranged at the side frame of the terminal, the user can rapidly achieve processing of the conversation state of the terminal when inputting the touch control operation. The processing flow of the conversation state of the terminal has a few steps and a fast processing speed, the operation is natural, the gesture operation of the user is facilitated, problems that the conventional processing process of the conversation state of the terminal is complicated, time-consuming and inconvenient are solved, and the user experience is greatly improved.
Owner:MEIZU TECH CO LTD

Lash brush with rotatable bristles

ActiveCN101972078AConvenient and fast automatic twisting and fixingBroaden applicationSolesBrush bodiesBristleEngineering
The invention discloses a lash brush with rotatable bristles, which comprises a brush bottle, bristles, a hollow brush rod, a middle cover, a transmission rod and a knob, wherein the bristles are made of soft materials, and the other ends of the bristles are fixed to one end of the hollow brush rod; the other end of the hollow brush rod is fixedly positioned on the inner side of one end of the middle cover; one end of the transmission rod movably penetrates through the brush rod and is finally connected with the inner wall on one end of the bristles in the circumferential direction in a stopping mode, and the other end of the transmission rod is positioned on the inner side of the other end of the knob in the circumferential direction in a stopping mode; one end of the knob in the circumferential direction is rotatably sheathed in the other end of the middle cover in the axial direction at a sliding set distance; oblique teeth, which are circumferentially arranged in the same direction, are arranged in the middle cover at intervals; the knob is provided with at least one elastic pallet which can elastically slide over the slope of the teeth and abut against the opposition surface of the slope of the teeth; the brush bottle can be sheathed outside the bristles and the brush rod; and the other end of the brush bottle is detachably and fixedly connected with one end of the middlecover. The invention has the advantages of simple structure and convenient operation, and the bristles can rotate and reset conveniently and freely.
Owner:苏州洽兴塑胶有限公司

Prompting method and device

InactiveCN106528116AGestures are naturalConvenient gesture operationOffice automationExecution for user interfacesTouch SensesHuman–computer interaction
The invention is applicable to the field of data processing, and provides a prompting method and a prompting device applied to an intelligent terminal which comprises a touch sensing module arranged at a frame. The method comprises the steps of outputting a prompting message to a user according to a preset first prompting mode, when a preset prompting function starting condition is met; receiving a touch operation input by the user via the touch sensing module; and processing the first prompting mode according to a preset prompt processing mode, when the touch operation accords with the preset touch operation. According to the method and the device provided by the embodiment of the invention, the user can rapidly process the prompting mode of the intelligent terminal by inputting the touch operation via the touch sensing module arranged on the frame of the intelligent terminal; the prompting method is fewer in operation steps of processing flow, high in processing speed, simple and natural to operate, convenient for gesture operation of the user, and greatly improved in user experience.
Owner:MEIZU TECH CO LTD

Dried sweet potatoes containing oat and red beans and processing method thereof

The invention discloses dried sweet potatoes containing oat and red beans. The dried sweet potatoes are prepared from the following raw materials in parts by weight: 80-90 parts of sweet potatoes, 10-15 parts of oat, 6-12 parts of red beans, 15-20 parts of wheat flour, 5-10 parts of kumquats, 2-5 parts of honey peaches, 3-6 parts of Chinese yams, 1-3 parts of dried roses, 2-5 parts of dried orangepeel, 3-6 parts of eucommia bark, 1-4 parts of sea-ear shells, 1-3 parts of spina date seeds, 1-3 parts of perilla, 2-5 parts of dark plums, 8-12 parts of white granulated sugar and 5-10 parts of eggs, and 4-6 parts of baking powder. The dried sweet potatoes containing the oat and the red beans provided by the invention are prepared from the sweet potatoes as a main raw material, and are added with the oat, the red bean, the wheat flour, the kumquats, the honey peaches, the Chinese yams, the dried roses and a plurality of traditional Chinese medicinal materials. The dried sweet potatoes are rich in nutrients, rich in fragrance, crisp and tasty in mouth feel, bright in color, reasonable in matching and reasonable in structure. The dried sweet potatoes contain not only rich micro-nutrients,but also dietary fibers and unsaturated fat, can realize nutrition balance of the human body and regulate organism functions when eaten, and can increase deep processing paths of sweet potatoes and increase economic income.
Owner:桐城市天地泰农业科技有限公司

Screen control method based on a mobile terminal, and a mobile terminal

The invention provides a screen control method based on a mobile terminal, comprising the following steps: judging whether a software interface with up and down extended contents is displayed on the screen of the mobile terminal; when a software interface with up and down extended contents is displayed, the operation gesture of the user is recognized, and whether the operation gesture of the usermatches with the preset operation gesture is judged. When the user's operation gesture matches the preset operation gesture, the middle frame gesture operation function is activated. When it is recognized that a user's finger slides up and down at a sensing area on the middle frame, content extends up and down within the software interface slides up and down synchronously with the sliding of the finger. The invention also provides a mobile terminal. After adopting the technical proposal, the gesture operation can be carried out in the sensing area of the middle frame to control the up and downsliding of the extended content in the screen, and the operation is convenient, and the finger can not block the content in the screen, so that the browsing experience of the user is improved.
Owner:SHENZHEN TRANSSION MFG LTD

A multi-sensor fusion prosthetic control method

The invention discloses a prosthesis control method with multi-sensor fusion, relates to the field of prosthesis technology, and comprises the following steps: a first sensor collects the myoelectric signal of an amputee's forearm muscle when it voluntarily contracts; the first sensor detects a second The information of the sensor determines the wrist direction of the prosthetic hand of the amputee; after the wrist of the prosthetic hand is adjusted to a posture suitable for grasping, the camera is triggered by muscle contraction, and the camera captures the grasped object The third sensor determines the grasping mode of the prosthetic hand according to the grasped object captured by the camera device, and controls the grasping mode of the prosthetic hand to grasp the object through the muscle contraction ratio of the amputee; Grip strength; the amputee can let go of the grasped object through muscle contraction. This method can enable amputee patients to control the prosthetic hand autonomously, with more natural operation, no need for training process, more friendly experience and more convenient use.
Owner:SHANGHAI JIAO TONG UNIV

Proceeding small holding horn

The present invention relates to a small horn for marching and consists of a horn mouth, a horn body, a tuning pipe, a lip bending part and vertical keys. The horn mouth, the horn body, the tuning pipe and the lip bending part are orderly connected; the tuning pipe comprises a first tuning pipe, a second tuning pipe and a third tuning pipe; the vertical keys are a group of keys which are correspondingly communicated with the first tuning pipe, the second tuning pipe and the third tuning pipe; the lip bending part and the vertical keys are communicated through a main tuning pipe; wherein, the vertical keys are arranged in parallel with the axial lines vertical to the axial line of the horn body. The structure is scientific and reasonable. The vertical keys which are vertical to the horn body can be operated more naturally and comfortably in the playing process; the length of the main tuning pipe can be freely adjusted to regulate the tune. Simultaneously, the small horn has the advantages of small size and labor-saving.
Owner:TIANJIN JINBAO MUSICAL INSTR

Fruit-flavored dried sweet potatoes and processing method thereof

The invention discloses fruit-flavored dried sweet potatoes. The fruit-flavored dried sweet potatoes are made from the following raw materials in parts by weight: 80-90 parts of sweet potatoes, 10-15parts of melon seed kernels, 6-12 parts of sesame seeds, 15-20 parts of corn flour, 5-10 parts of apples, 2-5 parts of strawberries, 3-6 parts of oranges, 1-3 parts of carrots, 2-5 parts of semen cassiae, 3-6 parts of licorice roots, 1-4 parts of malt, 1-3 parts of Chinese wolfberry fruits, 1-3 parts of herba rhodiolae, 2-5 parts of lily bulbs, 8-12 parts of maltose, 5-10 parts of fresh milk and 4-6 parts of yeast. According to the fruit-flavored dried sweet potatoes provided by the invention, the sweet potatoes are used as main raw materials, the melon seeds, the sesame seeds, the corn flour,the apples, the strawberries, the oranges, the carrots and various traditional Chinese medicines are also added, so that the fruit-flavored dried sweet potatoes are rich in nutrition, rich in fragrance, fragrant, crispy and tasteful, and bright in color. A deep processing way of the sweet potatoes is increased, and the economic returns are increased. The sweet potatoes are sterilized and cooked,then the cooked sweet potatoes and traditional Chinese medicines are mixed and mashed, through fermentation with the yeast, the nutrients and the aromatic taste are added, the function of the stomachand the intestine is coordinated, the uptake and the utilization are promoted, and the health care function is strengthened.
Owner:桐城市天地泰农业科技有限公司

Visual angle and position joint debugging mechanism for code keyboard peep-proof cover

ActiveCN107742591ALarge viewing angle adjustment rangeWide field of viewElectric switchesEngineeringVisual angle
The invention discloses a visual angle and position joint debugging mechanism for a code keyboard peep-proof cover. The mechanism comprises left and right supporting side plates arranged on the two sides of a code keyboard and a sight line guiding plate arranged above the code keyboard, the two sides of the sight line guiding plate are in slidable connection with the left and right supporting sideplates respectively, the two sides of the sight line guiding plate are each provided with two cylindrical sliding blocks distributed in a spaced mode, and the upper portions of the upper and right supporting side plates are provided with two guiding holes matched with the cylindrical sliding blocks; the whole sight line guiding plate are matched with the guiding holes in the left and right supporting side plates through the cylindrical sliding blocks arranged on the two sides to achieve slidable connection, so that synchronous adjustment of the visual angle and the position of the sight lineguiding plate is achieved, and when the visual angle of the sight line guiding plate is adjusted, the sight line of an operator can be projected to the keyboard all the time. Accordingly, the mechanism has the advantages of being simple in structure, convenient to use, capable of getting twofold results with half the effort, wide in application range, low in cost and the like.
Owner:SHANGHAI UNIV OF MEDICINE & HEALTH SCI

Human face living body detection method and device, human face living body detection equipment and medium

The invention discloses a human face living body detection method and device, human face living body detection equipment and a medium. The method comprises the following steps of controlling a position mark to be displayed on a screen; controlling the display of a moving track of the position mark, and controlling a shooting device to shoot a video of a user; and determining the matching degree between the position change track of the nose tip of the user in the video and the movement track of the position mark, and thereby obtaining a first human face living body detection result. According to the method, the living body detection result is obtained based on the matching degree between the change track of the nose tip position of the user and the movement track of the position mark, so safety of video living body detection is effectively improved.
Owner:BEIJING KUANGSHI TECH

Method and device for modifying tooth model

ActiveCN112353512BOperate naturallyAvoid the tedious manual fillingDental implantsDental articulatorsAlgorithmEngineering
Embodiments of the present invention provide a method and equipment for trimming a tooth model, wherein the method first obtains the tooth model to be trimmed, the preset selection radius, and the preset wax-up height; and then obtains the trimming on the visible surface of the tooth model to be trimmed Base point, with the modified base point as the center of the sphere, construct a spherical area with a radius equal to the preset selection radius; then identify the visible points on the tooth model to be modified within the spherical area; then move the visible points based on the preset wax-up height to Add or erase wax patterns in the spherical area to generate a new tooth model; finally, use the new tooth model as the tooth model to be modified, and repeat the above steps until a tooth model that meets the preset requirements is generated. This method allows doctors to digitally trim the tooth model according to their own needs, and then directly manufacture a solid tooth wax-up based on the trimmed tooth model, avoiding the tediousness of subsequent manual filling.
Owner:BEIJING YAKEBOT TECH CO LTD

Interactive control method between mobile terminal and large screen display based on thumbnail reconstruction

The invention relates to a mobile terminal and large-screen display interaction control method based on thumbnail image reconstruction, including a mobile terminal and a large-screen display host, the mobile terminal is connected to the large-screen display host through a wireless network, and an App client software on the mobile terminal Establish a TCP connection with the large-screen display program; the large-screen display program generates the layout information of the large-screen display area and thumbnails of each area, and sends them to the App client software; the App client software reconstructs the large-screen display according to the layout information and thumbnails Screen: The user inputs gestures and menu interaction information for each area on the mobile terminal, and transmits and applies it to the large screen to display each area. The mobile terminal of the present invention can display and control the large-screen display picture in real time, which is intuitive and quick, and has good user experience; through wireless connection with the large screen, the large screen can be controlled at any position of effective connection; fully utilizes the characteristics of the touch operation of the mobile terminal , the operation is more natural and smooth.
Owner:INTEGRATED ELECTRONICS SYST LAB

Touch-control teaching integrated machine

The invention relates to a touch control teaching integrated machine, and the integrated machine comprises a housing, a main unit circuit board, and a touch control display module. The housing comprises a front frame body, a central frame body, and a rear cover plate. The interior of the central frame body is provided with a touch control display module installation plate, a main unit circuit board installation plate, and a water cooling structure. The touch control display module is detachably disposed on the touch control display module installation plate. The front frame body is detachablyconnected with the central frame body, and the front surface of the touch control display module and the front surface of the front frame body remains aligned. The rear cover plate is connected with the central frame body in a detachable and sealed manner, and the main unit circuit board can be detachably installed in a sealed space, formed by the rear cover plate, the central frame body and the main unit circuit board installation plate, on the main unit circuit board installation plate. One side of the central frame body is provided with a USB interface, a network interface, a video interface, a power interface and an audio interface, wherein the USB interface, the network interface, the video interface, the power interface and the audio interface are connected with the main unit circuitboard. The other side of the central frame body is provided with a water inlet and a water outlet, which are connected with the water cooling structure.
Owner:广东源创智能科技有限公司

Built-in biological sleeve as well as preparation method and application thereof

ActiveCN108079375AReduce sensitivityProlong ejaculation latencyTissue regenerationProsthesisShort penisMedicine
The invention relates to a built-in biological sleeve as well as a preparation method and application thereof. In order to provide a proper built-in biological sleeve material for a dorsal nerve isolation operation and a penile augmentation operation, the invention prepares a novel acellular allogenic dermis matrix material which is manufactured into a built-in biological sleeve; and the built-inbiological sleeve can be used for treatment of premature ejaculation and short penis. The acellular allogenic dermis matrix or the built-in biological sleeve is used for the dorsal nerve isolation operation and the penile augmentation or lengthening operation, and does not cut off dorsal nerves, so that psychological erectile dysfunction probability caused by worries of a patient about cutting offthe dorsal nerves is eliminated.
Owner:BEIJING JAYYALIFE BIOTECH CO LTD

Coupling hook particularly for the lower arms of a three-point linkage of a tractor

The invention relates to a coupling hook, more particularly a coupling hook for the lower arms of a three-point linkage of a tractor, which is intended to attach an implement to a tractor by means of a coupling ball 11. The body 1 includes a housing 25 for a catch mechanism and a coupling throat 27 arranged to receive particularly the coupling ball 11, and a catch 2 rotating in the housing 25 forlocking the coupling ball 11 into the coupling throat 27. In the free position, the catch 2 can rotate, thus permitting the coupling ball 11 to rise out of the coupling throat 27. The catch 2 is operated by an operating lever 3. The catch 2 is arranged to return the operating lever 3 to the locking position, when the coupling ball 11 rotates the catch, the catch rises out of the coupling throat.
Owner:LH ELEVATOR
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