2029results about How to "Reduce impact force" patented technology

The invention discloses a curved-surface display component and a display device. The curved-surface display component comprises a packaging housing, at least one opening, a flexible display panel and an optical cement layer, wherein a first curved surface is arranged on the inner side of the packaging housing, and a cavity is formed inside the packaging housing. The opening is arranged on at least one edge of the packaging housing and gets to the cavity. The flexible display panel is arranged on the first curved surface inside the cavity. The optical cement layer is arranged in the cavity, and the optical cement layer directly covers the flexible display panel.

The invention discloses a quantitative material throwing device for aquaculture and belongs to the field of aquaculture equipment. The device comprises a storage bin, a support, a quantitative bin, a quantitative tray, a conveying pipe, a feeding motor, a throwing tray, a throwing protection cover and a throwing motor, wherein the storage bin is fixedly installed on the top of the support, the quantitative bin is installed below the storage bin and is connected with the feeding motor, the quantitative tray is arranged on the bottom of the quantitative bin and is fixedly installed on the support, a quantitative hole is formed in the quantitative tray, the conveying pipe is arranged below the quantitative hole, the throwing tray is arranged below the conveying pipe and is connected with the throwing motor, and the throwing protection cover is arranged on the throwing tray in a covering mode. According to the device, the problem of uneven feed throwing is solved, even throwing all over the pond is realized in the true sense, the use efficiency of feed is improved, and the influence of aquaculture on the environment is reduced. Furthermore, the device is simple in structure and low in manufacturing cost and is worth popularization.

The invention discloses a rail transfer device. The device comprises a traveling mechanism comprising steel wheels, a first gyration mechanism connecting a saddle beam and the driving mechanism, a first gyration driving mechanism and a jacking-up mechanism, wherein the first gyration mechanism can rotatablely connect the traveling mechanism and the saddle beam; the first gyration driving mechanism can drive the driving mechanism to rotate relative to the saddle beam; the jacking-up mechanism is a jacking-up hydraulic cylinder comprising a cylinder body and a piston; the cylinder body and the saddle beam are relatively fixed; the outer end of the piston is provided with support legs; when the piston of the jacking-up hydraulic cylinder extends out, the support legs can jack the saddle beam up; and the device also comprises a grasping mechanism capable of grasping movable rails. In addition, the invention also discloses a rail transfer connecting device, a rail-type gantry crane transfer system and a transfer method thereof. The rail transfer device provided by the invention can realize the automation of transfer operation and improve the working efficiency of the transfer operation.

The invention discloses an anti-collision device for a bridge pier. The anti-collision device comprises an inner buffering cushion, a rotating assembly and an outer anti-collision assembly which are coaxially arranged from inside to outside. The pier is tightly wrapped by the inner buffering cushion, the outer anti-collision assembly can rotate around the axial central line through the rotating assembly, the rotating assembly comprises an inner ring, an outer ring and spherical rolling bodies evenly distributed between the inner ring and the outer ring, the outer ring can rotate relative to the inner ring, and the inner ring can be matched with the inner buffering cushion in a relatively rotating mode. Not only can the aims of prolonging stress time and reducing impact force borne by the pier be achieved through the outer anti-collision assembly, but also the outer anti-collision assembly can rotate around the axial central line through the rotating assembly when the pier is impacted, so that the impact force caused by objects of ships and the like is guided to shift away from the pier, the remaining huge impact force after buffering of the outer anti-collision assembly is shifted away as much as possible, and safety of a bridge is greatly improved. In addition, the inner ring of the rotating assembly further can rotate relative to the lateral face of the outer circumference of the inner buffering cushion to generate a secondary rotating effect, and the effect of shifting the impact force away from the pier is further improved.

The invention relates to a food processing method of a motor under-set-type food processing machine and the food processing machine, and belongs to the field of food processing. The food processing method at least comprises a heating stage, a first cooking stage and a wall-breaking and grinding stage, wherein in the heating stage, food in a stirring cup is heated to be boiling by virtue of a heating device; in the first cooking stage, the food in the stirring cup is cooked for a duration of t1 by virtue of the heating device until the food is completely cooked, and during cooking, a grinding cutter is driven to do intermittent rotation at a first rotating speed by virtue of a motor; and in the wall-breaking and grinding stage, the grinding cutter is driven to rotate at a second rotating speed by virtue of the motor so as to grind the cooked food in the stirring cup, and the second rotating speed, which ranges from 20000r / min to 40000r / min, is greater than the first rotating speed, wherein the power of the heating device in the first cooking stage is less than that in the heating stage. The food processing machine using the food processing method provided by the invention can uniformly heat the food, and the phenomenon of over-burnt bottom and spillover cannot occur easily.

The invention discloses a road traffic guardrail capable of buffering and absorbing impact. The road traffic guardrail is characterized by comprising fastening pieces; each fastening piece is provided with two ends and a connecting part used for connecting the two ends, wherein the two ends are used for applying force to an upper horizontal column or a lower horizontal column; power is transmitted to the connecting part from the two ends; and the upper horizontal column or the lower horizontal column is subjected to the force and moves relative to a corresponding round tube stand column, so that the upper horizontal column or the lower horizontal column is fixed to the round tube stand column. The road traffic guardrail capable of buffering and absorbing impact is simple in structure; the fastening pieces are adopted for fixing the upper horizontal column and the lower horizontal column; on the one hand, the fastening pieces are high in strength and guarantee the anti-impact performance of the upper horizontal column and the lower horizontal column, on the other hand, the upper horizontal column and the lower horizontal column can move relative to the round tube stand columns only by applying force to the connecting parts of the fastening pieces in the mounting process, and therefore, fixation is achieved; mounting is convenient and fast, and the labor efficiency is greatly improved; and at the same time, a smaller number of screw rods are used, and the production cost is lowered.

The invention discloses coating equipment for tube-type PERC solar cells. The coating equipment comprises a wafer loading region, a furnace body, a gas cabinet, a vacuum system, a heating system, a control system and a graphite boat; the gas cabinet is provided with a first gas pipeline for introducing silane, a second gas pipeline for introducing ammonia, a third gas pipeline for introducing trimethylaluminum, a fourth gas pipeline for introducing laughing gas and a fifth gas pipeline for introducing methane; the graphite boat is used for loading or unloading a silicon wafer; before being used or after being coated many times, the graphite boat needs to be subjected to pretreatment comprising the steps: drying the graphite boat; and coating at least one layer of silicon carbide film on the surface of the dried graphite boat. Correspondingly, the invention further discloses a coating method for tube-type PERC solar cells. By using the coating equipment and method, the pretreatment step of the graphite boat is simplified, the consumption of the silicon wafer is reduced, the silicon wafer is prevented from being scratched, and the EL yield of the cells is increased.

The invention provides a cooperative target capture locking device, and relates to a three-finger capture locking device. The cooperative target capture locking device aims to resolve the problems that an existing space mechanical arm tail-end actuator has small capture allowance and poor capture reliability in a capture process, and large impact force occurs in the capture process. The cooperative target capture locking device comprises a covering board, a supporting shell, a bottom board, a screw, a disc and three sets of capture locking fingers, wherein the covering board is connected to the upper end of the supporting shell, the bottom board is arranged at the lower end of the supporting shell, and the screw is arranged along the axis of the supporting shell. Each set of capture finger comprises a capture claw, a linkage shaft, a guide column, two locking claws, two locking wheels, two connection rods and two springs, the three sets of capture fingers are evenly distributed on the outer circular wall of the disc, a connection section is rotationally connected with the disc, the two ends of the guide column are connected with the supporting shell, and the short edge of each locking claw is provided with each locking wheel. The cooperative target capture locking device is used for cooperative target capture locking on the space mechanical arm tail-end actuator.

The invention discloses a storage-battery anti-shock crashproof structure, aims at solving the disadvantages that when a conventional storage battery is installed and used, a battery group is easily extruded and injured because of shaking of a battery pack, and thus the battery pack is injured and has faults. The structure comprises a storage batter housing, the storage battery housing is inside provided with separation plates dividing the storage battery housing into multiple cell unit installation grooves; each cell unit installation groove is inside provided with a battery group unit; the bottom surface outside the storage battery housing is provided with transverse ribs and longitudinal ribs, and is coated with a vibration-damping pad which covers the transverse ribs and the longitudinal ribs; and the outer lateral walls at periphery of the storage battery housing are all provided with vertically-arranged sidewall ribs, and are all coated with crashproof pads which cover the sidewall ribs.

The invention relates to bridge collision avoidance pre-warning equipment, which effectively solves a problem that the existing collision avoidance structure can be only used once. The technical scheme for solving the problem is that the bridge collision avoidance pre-warning equipment comprises a bridge column; the bridge column is connected with a bridge pier; the bridge pier fixes a first radian plate; the first radian plate is connected with a second radian plate; the second radian plate is connected with a third radian plate; the third radian plate is connected with a fourth radian plate;the fourth radian plate is connected with a fifth radian plate; the fourth radian plate is indirectly linked with a rack; the rack is engaged with a first gear; the first gear is connected with a water shifter in a transmission manner; the first gear is connected with a first belt wheel in a transmission manner; the first belt wheel is connected with a second belt wheel in a transmission manner;the second belt wheel is connected with a second gear in a transmission manner; the second gear is engaged with a third gear; a fourth spring is connected between the second gear and the third gear; the rack is connected with a hydraulic cylinder connecting block; the hydraulic cylinder connecting block is connected with a hydraulic cylinder; the second belt wheel is connected with a cam in a controller in a transmission manner; the cam can touch a switch by rotating; the right side of the controller is connected with a buzzer; and the buzzer is controlled by the switch. The bridge collision avoidance pre-warning equipment has a good collision avoidance effect.

A child car seat comprises a child car seat body, a back portion, and a seat portion connected to the child car seat body. The back portion is rotatably connected to the child car seat body, and the bottom end of the back portion is pulled toward the seat portion side by a spring member at a normal time. At a time of impact, an impact force larger than a force of the spring member rotates the back portion so that the back portion moves away from the seat portion.

Devices and methods for packing objects, including information handling systems and other types of electronic devices that may be implemented using a single piece and assembly-free packing device configuration that has one or more foldable and insertable buffer sections that are foldable to increase the overall strength of the packing device against external loads and shocks.

The invention relates to the technical field of highway, in particular to an energy-absorbing type safety collision-proof barrier of an expressway, including a base, the upper end of the base is symmetrically provided with a support column, the upper end of the supporting column is inserted with a rotating shaft, The outer side of the rotating shaft is hinged with upright posts, the lower side ofthe outer wall of the upright posts is provided with fixing rods, the opposite sides of the two upright posts are respectively provided with sliding grooves, the interior of the sliding grooves is slidably connected with a guard rail frame, the upper end and the lower end of the guard rail frame are fixedly connected with pull rings, and the interior of the guard rail frame is provided with a barbody. The invention is novel in structure and convenient in use, has good protection performance in the event of an accident, can effectively absorb the impact force of the automobile, greatly reducesthe reaction force of the automobile, reduces the harm caused by the accident, avoids the damage of the whole guardrail, prolongs the service life of the device, has strong practicability and is worth popularizing.

The invention discloses an automobile collision energy dissipation protection device, and belongs to the field of automobile protection devices. In order to solve the problem that the energy absorption effect is not ideal because a pure shearing mode is adopted in energy dissipation of the conventional safety protector, the protection device disclosed by the invention comprises a front template and a rear template, wherein at least one box-type energy absorption device capable of shearing crushing energy dissipation is arranged between the front template and the rear template. The conventional pure shearing energy dissipation in the prior art is changed into crushing deformation energy dissipation of a thin-wall box-type structure, so that a running automobile can immediately realize automatic shutdown after collision, comprehensive automatic vibration absorption can be simultaneously performed, the impact force of the automobile can be relieved or eliminated, the energy dissipation effect is remarkably improved, comprehensive protection of safety of the automobile and the personnel is realized, and the safety of the automobile and the personnel can be effectively protected at rear collision.

The invention discloses an elastic grinding material for sandblasting treatment. The elastic grinding material is characterized by comprising a rigid grinding material and elastic foam, wherein the elastic foam is coated on the outer part of the rigid grinding material and is generated by a reaction of a polyisocyanate component and a hydroxyl compound and / or an amino compound component; the mass ratio of the rigid grinding material to the elastic foam is from 3:1 to 12:1; the mass ratio of the polyisocyanate component to the hydroxyl compound and / or the amino compound component is from 0.1:99.9 to 99.9:0.1; the hydroxyl compound and / or the amino compound component also comprises other auxiliary agents and pigment filler; and the granularity of the crushed elastic grinding material is 2 to 40 meshes. The elastic grinding material has the advantages of better elasticity, capacity of buffering impact of the grinding material on the surface of a base material, improvement on surface cleanliness, reduction in noise and dust pollution, recyclability, obvious economic benefit and environmental benefit and capacity of being used in closed spaces and environments with severe requirement on environmental and noise pollution control.

The invention discloses an omni-directional anti-collision device for an automated guided vehicle (AGV) and the AGV. The omni-directional anti-collision device for the AGV comprises an anti-collision stopping rod, a buffer spring, a pendulous guide rod, a linear bearing and a pendulous supporting member. One end of the buffer spring is fixed on the anti-collision stopping rod, the other end of the buffer spring butts against and is fixed on a base plate of a vehicle body, one end of the pendulous guide rod is movably connected with the anti-collision stopping rod through the pendulous supporting member, the linear bearing is fixed on the base plate of the vehicle body, the linear bearing is connected onto the pendulous guide rod in sleeved mode, and the pendulous guide rod moves along the axial direction of the linear bearing when the buffer spring is compressed due to impact force. The omni-directional anti-collision device can prevent collision when the omni-directional anti-collision device is subjected to external force from any direction of the front, the rear, the left and the right. When the AGV is subjected to collision force, the AGV can have good stability and anti-collision effect under the cooperation of the anti-collision stopping rod, the buffer spring, the pendulous guide rod, the linear bearing and the pendulous supporting member.

The invention discloses a middle hole pressure storage static leakage-free oil sprayer, comprising a high speed solenoid valve, a locking screw sleeve, a tapered surface ball valve type switch valve, a control plunger and barrel assembly, an oil sprayer spring, a spring seat, an opening check ring, an oil sprayer body, an oil sprayer assembly and an oil nozzle locking cap; the tapered surface ball valve type switch valve is arranged in a concave cavity in the upper end of the oil sprayer body; the upper end of the oil sprayer body is connected with the high speed solenoid valve by a locking nut; the lower end of the oil sprayer body is connected with the oil nozzle assembly by the oil nozzle locking cap; the control pole plunger and barrel assembly is arranged in a central hole formed along the axis of the oil sprayer body; the central hole of the oil sprayer body and the control pole plunger and barrel assembly form a middle hole pressure storage cavity. The oil sprayer is simple in structure, low in machining cost and convenient to mount, so the production efficiency and product percent of pass are improved.

The invention discloses a multipurpose ship berthing device. The multipurpose ship berthing device is characterized in that the multipurpose ship berthing device comprises one or more double-acting single-piston oil cylinders arranged in a ship; an electromagnet is fixed at the outer end of each piston rod; a hydraulic system controls extension of the piston rods in the double-acting single-piston oil cylinders and controls power-on / power-off of the electromagnets. Secondary depression slow pulling devices are mounted at the front ends of the piston rods respectively. When a large ship is docked, each piston rod extends outwards under the action of the oil cylinders, and the ship gradually approaches the shore side of a wharf; the electromagnets are powered on to generate powerful magnetic force, the front ends of the electromagnets are enabled to be tightly adhered to the shore side of the wharf, and the ship is slowly docked toward the wharf under the action of the multiple piston rods to finally approach the wharf smoothly, so that the impact force of the ship to the wharf during docking is greatly reduced, and the safety of the wharf is guaranteed. The device is applicable to mutual berthing among offshore ships, and effective transverse safety mooring between two ships is realized.

An automatic buffer unit for preventing collision between cars is composed of a bumper, a collision bar connected to the bumper, spring sleeving on said collision bar, the front and back shearing supporters for said collision bar, and an autocontrolled buffering mechanism consisting of micromotor, drive axle, shear-type balance rods, slide track, elastic rod and intelligent sensor. When an collision will take place, it can automatically ejected out to buffer the collision force.

The invention relates to an energy-dissipating and collision-preventing combined device of a floating composite pier, which is characterized by at least comprising an internal layer corrosion-preventing ring (16) arranged along the pier, wherein the internal layer corrosion-preventing ring (16) comprises a plurality of composite lattice pouring jackets (17) arranged around the pier, the composite lattice pouring jackets (17) are connected to form an integrated structure through longitudinal composite presstressed reinforcing steels (6) and transverse composite presstressed reinforcing steels (7), the side of each composite lattice pouring jacket (17) is provided with an anchor head (10), the upper surface and the lower surface of each composite lattice pouring jacket (17) are both embedded with embedding pieces (11) connected with the adjacent composite lattice pouring jackets (17); part or all of the composite lattice pouring jackets (17) forming the internal layer corrosion-avoiding ring (16) are connected with pulleys (13); the joint of the adjacent composite lattice pouring jackets (17) is provided with a sealing body; and one surface of each composite lattice pouring jacket (17) contacting with water is provided with a wave-dissipating hole (15). Compared with the traditional steel pouring jacket, the invention has better shock resistance and durability, light weight, and convenient installation and repair, can save materials, and shorten the construction period.

The invention relates to a concrete pier stud confined by a composite structure sandwich pipe which has the buffer energy-absorption effect. The concrete pier stud is characterized by consisting of a pier stud jacket (7) and an internal concrete core (5) which is casted in the pier stud jacket (7); a reinforcing steel bar (4) which is arranged along the axial direction of the pier stud jacket (7) and takes effect of increasing tensile strength is pre-embedded in the internal concrete core (5); and the pier stud jacket (7) consists of an external composite pipe (1), an internal composite pipe (3), a lattice (6) connecting the external composite pipe (1) and the internal composite pipe (3) and buffer material (2) which is filled in a space surrounded by the external composite pipe (1), the internal composite pipe (3) and the lattice (6). The invention uses a composite lattice sandwich layer to enwrap the outside of the concrete pier stud, the buffer material in the sandwich layer transforms and releases impact energy by the energy for the structure or the material to recover the elastic deformation by self and can prolong the impact time, thereby reducing the impact force and achieving the effect of protecting the vehicle, the ship and the bridge, and at the same time, the concrete pier stud can increase the strength and the corrosion resistance and reduce the construction cost.

A multi-station progressive die for an auxiliary fascia console body rear mounting support comprises a lower die plate, a lower die base, a female die plate, a guide plate, an unloading plate, a male die fixing plate, an upper die base, punching female die sleeves, punching male dies, bent female die inserts, bent male die inserts, a guide column guide sleeve assembly, a hole flanging female die, guide pins, guide hole insert sleeves, a forming male die insert, a forming female die insert, a groove pressing male die, a groove pressing female die, limit columns and four pairs of inner guide columns. The male die length is designed in a step mode, and the profiled male die is made of DC 53. According to the die, step punching is used, the punching force is reduced, and male and female dies are made of DC53, so that the die service life is prolonged, and manufacturing procedures are reduced.

The invention discloses a tube type PERC single-sided solar cell, which comprises a main silver back gate, an all-aluminum back electric field, a back-side composite film, a P-type silicon, an N-type emitting electrode, a front-side passivation film and a positive silver electrode. The back-side composite film is composed of one or more selected from an aluminum oxide film, a silicon dioxide film, a silicon oxynitride film and a silicon nitride film and is deposited at the back of a silicon chip by adopting tube type PECVD equipment. The tube type PECVD equipment comprises four gas pipelines of silane, ammonia, trimethyl aluminum and laughing gas. The appliance of the tube type PECVD equipment, used for loading and unloading silicon chips, is a graphite boat. The depth of a sticking point groove of the graphite boat is 0. 5-1 mm. The invention also discloses a preparation method and special equipment of the tube type PERC single-sided solar cell. According to the invention, the photoelectric conversion efficiency is high. Meanwhile, the appearance yield and the EL yield are high. The problems of scratching, winding and plating can be solved.

The invention provides an air generator shock absorption device on a steering wheel and belongs to the technical field of automobile accessories. The air generator shock absorption device comprises a support wheel and a buffer assembly. An air generator is connected onto the buffer assembly made of a rubber material. When head-on collision of a vehicle occurs, the buffer assembly made of the rubber material in an air bag restraint module can effectively buffer recoil force produced by the detonated air generator, namely the contact time of an air bag and a person is prolonged, the buffer time of a safety belt is prolonged, inertia impact of the person is reduced to some extent, impact force between the person and the air bag is reduced, and injury level is reduced. In addition, due to the fact that the air generator is connected onto an elastic connecting column of the buffer assembly, the air generator shock absorption device has certain shaking capacity. When jolt shake produced by the whole vehicle in running is transmitted to the steering wheel, the steering wheel can transmit agglomerated energy to the air generator through the buffer assembly, the air generator and the elastic connecting column shake, the shaking degree of the steering wheel is reduced, noise is reduced, and driving comfort is improved.

The invention discloses a conveying device. The conveying device comprises a circulatory arranging mechanism, a direction changing conveying mechanism and a product conveying mechanism. The circulatory arranging mechanism is arranged on one side of the product conveying mechanism; the direction changing conveying mechanism is arranged above the circulatory arranging mechanism and the product conveying mechanism; the direction changing mechanism provided with a pushing area which conveys products on the product conveying mechanism into the direction changing conveying mechanism, and the pushing area faces towards the circulatory arranging mechanism and the product conveying mechanism; both the conveying direction of the circulatory arranging mechanism and the conveying direction of the direction changing conveying mechanism are perpendicular to the conveying direction of the product conveying mechanism. According to the conveying device, products can be conveyed at low speed from an original conveying line to arranging stations, so that the collision strength between the products and the conveying units can be effectively reduced to protect the products from damage.

The invention belongs to the technical field of motor manufacturing, and particularly relates to a permanent-magnet surface-mounting magnetic steel assembly tool and an application method thereof. Thepermanent-magnet surface-mounting magnetic steel assembly tool comprises a rotor core, a plurality of magnetic steel positioning devices, a plurality of magnetic steel press blocks and a magnetic steel push device, wherein the rotor core is arranged on a rotor rack, the plurality of magnetic steel positioning devices can be detachably fixed on the rotor core, the plurality of magnetic steel pressblocks can be fixedly arranged on the rotor core, the magnetic steel push device can be matched with the rotor core to push a magnetic steel block to a magnetic steel installation region, a pluralityof magnetic steel installation grooves are formed in a peripheral surface of the rotor core, each magnetic steel installation groove is corresponding to a magnetic pole to be installed, and the magnetic pole to be installed comprises a plurality of magnetic steel blocks. According to the permanent-magnet motor surface-mounting magnetic steel assembly tool and the application method thereof, provided by the invention, no damage to a surface of the magnetic steel during the large-size permanent-magnet motor assembly process can be ensured, the magnetic steel collision force is reduced, so thatthe application performance and the lifetime of the motor are ensured, moreover, the magnetic steel assembly efficiency of an assembly person also can be improved, and the safety of an operator duringthe magnetic steel assembly process is ensured.

The invention discloses a method for the electromechanical green brick cutting of a brick press. An adobe outlet of an extruder is provided with a sensor for determining the length of adobe strips, the sensor transmits a positioning signal to a command center of a central processor, an actuator receives a strip cutting instruction and a conveying motor starts to convey a green brick material to a green brick cutting position, a green brick pusher moves ahead, a green brick cutting steel wire frame moves downwards to oppositely act on the green brick material with the green brick pusher and quickly cut in the green brick material, then the green brick push lifts quickly to push the bricks to a green brick distributor. An actively cutting in green brick cutter for implementing the method comprises a sensor for detecting the length of the green brick strips extruded by the extruder, a strip cutting mechanism, a green brick strip conveying mechanism and a green brick cutting mechanism; and the sensor is arranged at a position of an extrusion opening of the extruder and is communicated with an electric switch through the central processor and the strip cutting mechanism, the strip cutting mechanism is connected with the green brick cutting mechanism through the green brick strip conveying mechanism, and the green brick mechanism is arranged in a motion mechanism and moves in the opposite direction of the green brick pusher in the green brick strip conveying mechanism. The method can improve the automation of the brick making industry, save energy and reduce work load.

The present invention discloses a kind of nano structure wire gauze composite lining plate and its preparation process. Said lining plate is made up by using wire gauze and compounded filing materialthrough a compositive process. Said wire gauze can be integrally braided, also can be a multilayer structure pieced by using single-layer of wire gauze, said wire gauze can be placed in the interior of compounded filling material, then they are combined into a whole body. Said composite lining plate possesses high wear-resistance, water-resisting property, vibration-absorbing property and corrosion-resisting property, etc..

A disk drive (10) includes a plurality of thin-film members (36) for respectively covering the desired contour portions in a plurality of suspension arms (26) of an actuator (20). Each thin-film member (36) is fixedly attached to the surface of the suspension arm to cover the contour portion around a through hole (34) formed in the corresponding suspension arm (26) for reducing the moment of inertia, so as to cover the through hole. The thin-film member (36) substantially makes the contour portion around the through hole of the suspension arm (26) flush, and the air flow caused around the storage disks (16) rotating at high speed is guided smoothly along this contour portion. As a result, the air flow is stabilized, and the influences such as vibration on the actuator (20) are suppressed.