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door stop sensor

A sensor and door stop technology, applied in door devices, door/window accessories, contact operating mechanisms, etc., can solve the problems of unable to detect the state of the door clamp, difficult to detect, etc.

Active Publication Date: 2022-01-04
HITACHI METALS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in order to judge the presence or absence of a door clip based on the change in the internal pressure of the cylindrical part in the door clip detection device described in Patent Document 1, in this door clip detection device, the smaller the foreign matter that is difficult to deform in the cylindrical part, the smaller the size. Unable to become deeply clamped, creating difficult-to-detect problems
That is, items with a large contact area with the door stopper rubber, such as bags, are easy to detect, but items with a small contact area with the door stopper rubber, such as fingers, cannot be clamped deeply, making detection difficult.
[0009] In addition, the door clip detection device described in Patent Document 2 detects the door clip based on changes in the amount of charge generated from the piezoelectric component. Therefore, after the door clip is generated, it cannot detect whether the door clip state continues, for example, when the door collides with a foreign object. And after the door clip is detected, there is a possibility that the clamped state will continue even if the contact with the foreign object is released.

Method used

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Examples

Experimental program
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no. 1 approach

[0054] figure 1 It is a front view of a door of an electric car (railway vehicle) to which the door stopper sensor according to the embodiment of the present invention is applied.

[0055] like figure 1 As shown, a set of doors 2 ( 2 a , 2 b ) that slide in the left and right directions of the figure to open and close the door opening is provided at the door opening on the side of the train vehicle 1 . Further, door stopper rubbers 4 ( 4 a , 4 b ) as door stopper elastic members are respectively attached to front ends in the closing direction, which is the moving direction when the sliding doors 2 a , 2 b are closed. The door stopper rubber 4 is made of synthetic rubber and is attached along the vertical direction of the landing (the vertical direction in the figure). A group of door stopper rubbers 4 (4a, 4b) opposite to the group of doors 2 (2a, 2b) is closed when the door 2 (2a, 2b) is closed, as figure 1 shown in contact with each other.

[0056] figure 2 means to ob...

no. 2 approach

[0089] Figure 7 It is a sectional view showing the door stopper sensor 20 according to the second embodiment of the present invention. In this embodiment, a hard member 18 harder than the door stopper rubber 4 a is added to the first embodiment. The following description will focus on points different from the first embodiment.

[0090] exist Figure 7 Among them, the arrangement position of the pull switch 10 on the inner wall surface of the door stopper rubber 4a is the same as that of the above-mentioned first embodiment. In the second embodiment, a hard member 18 harder than the door stopper rubber 4 a is attached to the door stopper rubber 4 a, and the pull switch 10 is attached to the door 2 a closing direction Bb side of the hard member 18 . At least a part of the hard member 18 is accommodated in the recess 6b formed parallel to the recess 6a where the pull switch 10 is arranged, and the other part is arranged at a position exposed to the cavity 7 .

[0091] The h...

no. 3 approach

[0097] Figure 8 It is a sectional view showing the door stopper sensor 20 according to the third embodiment of the present invention. In this embodiment, the arrangement position of the pull switch 10 is changed compared with the first embodiment. The following description will focus on points different from the first embodiment.

[0098] The door stopper sensor 20 of the third embodiment has a plurality of projections 41 protruding from the door stopper rubber 4 toward the center of the cavity 7 , and the pull switch 10 is attached at a position sandwiched between the plurality of projections 41 , 42 . More specifically, the pull switch 10 is sandwiched between a pair of trapezoidal protrusions 41 and 42 and is arranged in the approximate center of the cavity 7 . A pair of protrusions 41 , 42 are arranged along the opening and closing direction B of the door 2 . In addition, the protrusions 41 , 42 are provided along the entire length direction of the door stopper rubber ...

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Abstract

The present invention provides a door stopper sensor, which can detect the state of the door clip independently of the contact area between the door stopper rubber and the foreign matter, and can judge whether the state of the door clip continues. The door stop sensor (20) has a door stop rubber (4) mounted on the front end of the door (2) in the closing direction and has a cavity (7) formed inside, and is mounted on the door stop rubber (4) and extends along the cavity. A pull switch (10) configured in the direction of extension of (7). A pull switch (10) includes an elastic tubular insulator tube (11) deformed with elastic deformation of the door stopper rubber (4), and a plurality of electrode wires (12) fixed to the inner surface of the insulator tube (11). The plurality of electrode wires (12) are non-contact in the non-deformed state of the insulator tube (11), and contact each other when the insulator tube (11) is deformed.

Description

technical field [0001] The present invention relates to a door stopper sensor attached to a door that opens and closes a door opening provided in a vehicle such as a railway vehicle and detects the closing operation of the door. Background technique [0002] When a person passes through a door opening provided in a vehicle or the like, a door clip may occur in which a part of the person's body or an item held by the door is caught by the door as the door closes. Conventionally, there have been proposed door clip detection devices for detecting such door clips (for example, refer to Patent Documents 1 and 2). [0003] In the door clip detection device described in Patent Document 1, a hollow portion having a circular cross-section is provided inside the mounting portion of the door stopper rubber attached to the front end of each door of a railway vehicle, and the hollow portion inside the door stopper rubber is A cylindrical part is provided, and by detecting the difference...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61D19/02
CPCB61D19/026E05Y2800/678H01H3/142E05Y2400/54E05Y2800/28E05Y2800/344E05Y2800/272E05F15/44H01H2003/165E05Y2900/51E05F15/48
Inventor 秋元克弥川濑贤司铃木秀一
Owner HITACHI METALS LTD