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Speed governor tensioner apparatus for elevator

A technology of governor and tensioner, which is applied in the directions of transportation, packaging, elevators, etc., can solve the problems of increasing the number of parts and installation man-hours, taking time, and failing to function normally, so as to reduce installation man-hours and reduce parts. effect of number

Inactive Publication Date: 2008-12-24
TOSHIBA ELEVATOR KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the conventional elevator governor tensioner device with a switch mechanism, since the counterweight as the governor tensioner main body and the tensioner switch are separately installed, there is a problem that the Adjustment of the body side including arm adjustment and adjustment of the mounting position of the switch takes time, increasing the number of parts and installation man-hours
[0009] In addition, according to the conventional structure, since the switch is also reset at the same time by the reaction of the reset of the governor tensioner main body, there is a problem in that it is necessary to maintain the state where the switch is cut off while the governor cable is stretched. The governor tensioner may also restart and not function properly if

Method used

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  • Speed governor tensioner apparatus for elevator
  • Speed governor tensioner apparatus for elevator
  • Speed governor tensioner apparatus for elevator

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Experimental program
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Effect test

no. 1 Embodiment approach

[0048] In the first embodiment shown in FIGS. 1( a ), ( b ), and (c), the fixing member 21 is fixed to the guide rail 5 provided in the lifting path 19 by the rail clamp 5 a. The swing arm 22 is freely swingably fixed to the fixing member 21 via a shaft 23 . The switch 24 is attached near the base end 22a of the swing arm 22 with its movable contact 24a facing the swing arm 24 side. In the structure shown in FIG. 1, the switch 24 is fixed below the base end 22a side of the swing arm 22 so that the movable contact 24a may face upward.

[0049] The pressing operation part 25 has: a fixing member 26, which rotates together with the swing arm 22 at an angle corresponding to the downward swing of the front end 22b of the swing arm 22, and is held integrally with the swing arm 22 by a bracket 27; and a contact part. 28 a , the movable contact 24 a of the switch 24 is pressed by the pressing force based on the rotation of the fixing member 26 .

[0050]Furthermore, the state mainta...

no. 2 Embodiment approach

[0056] Second, refer to figure 2 A governor tensioner device for an elevator according to a second embodiment will be described. exist figure 2 In the governor tensioner device 20 of the second embodiment shown, a switch 24 is attached to a fixing member 21 that fixes a swing arm 22 to swing freely. In the second embodiment, the pressing operation part 25 has: the fixing member 26 that rotates integrally with the swinging arm 22 at an angle corresponding to the downward swing of the front end 22b of the swinging arm 22; The pressing force of the rotation of the switch 24 contacts and presses the movable contact 24a of the switch 24 .

[0057] The contact portion 28a constitutes a cam portion 28 rotatably supported by a shaft 28b, and a part of the cam portion 28 has a protruding piece 28c protruding in a direction along the swing arm 22 in a substantially horizontal state. The state maintaining part 29 of the second embodiment has: the protruding piece 28c of the cam part...

no. 3 Embodiment approach

[0060] Second, refer to image 3 A governor tensioner device for an elevator according to a third embodiment will be described. exist image 3 In the governor tensioner device 20 of the third embodiment shown, a switch 24 is attached to a fixing member 21 that fixes a swing arm 22 to swing freely. In the third embodiment, the pressing operation part 25 is a cam surface 28a of a cam part 28 that rotates about an axis 28b in response to the downward swing of the tip 22b of the swing arm 22 . The contact portion constituted by the cam surface 28 a is biased by the pressing force based on the rotation of the cam portion 28 , and contacts and presses the movable contact 24 a of the switch 24 .

[0061] Moreover, the state maintaining part 29 has: a concave part 28d formed on the extension surface of the cam surface 28a of the contact part, and maintaining and maintaining the contact state with the movable contact 24a by fitting with the movable contact 24a of the switch 24; With...

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Abstract

A speed regulator tensioner (20) for elevator, wherein a speed regulator cable (9) winds among a speed regulator sheave (7) of a speed regulator (6) mounted at the superior side of an elevator lifting path (19) and a tensioner sheave (8) at the inferior side and the tensioner sheave extends by a hung balance weight (10). The rotation axle of the tensioner sheave is axially beard on the front end (22b) of a swing arm (22) and a proximal end (22a) is freely axially beard on a fixation component (21) of the lifting path in a swing manner and the switch at the fixation side of the lifting path detects the speed regulator cable extension of more than a certain length due to the balance weight. A push-pressing action section (25) is arranged around the proximal end of the swing arm and presses a movable contact (24a) of the switch (24), when the front end of the swing arm swings downwards by a preset degree through the balance weight. A state keeping section (29) keeps the state of movable contact of the switch pressed by the push-pressing action section.

Description

technical field [0001] The present invention relates to a governor tensioner device for an elevator, and more particularly to a governor tensioner device for an elevator with an improved switch mechanism applied to the structure of the tensioner switch. Background technique [0002] Figure 6 It is a front view showing an example of a conventional governor (governor) including a conventional governor tensioner described in Japanese Laid-Open Patent Publication, Japanese Patent Laid-Open No. 2002-179361 (hereinafter referred to as Patent Document 1). exist Figure 6 Among them, the main rope 3 is connected to the upper part of the car frame 2 supporting the car 1, and the car 1 is raised and lowered by the drive of the hoist installed on the upper part of the building. The guide blocks 4 provided at the upper, lower, left, and right corners of the car frame 2 slide along a pair of left and right car-side guide rails 5, 5 to guide the car 1 to ascend and descend. A speed gove...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/04B66B5/16B66B7/06
Inventor 饭田宽之
Owner TOSHIBA ELEVATOR KK
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