Pinch detection sensor

Patent metadata

Field	Value
Publication number	US-11261643-B2
Application number	US-201916453177-A
Country	US
Kind code	B2
Filing date	Jun 26, 2019
Priority date	Jul 2, 2018
Publication date	Mar 1, 2022
Grant date	Mar 1, 2022

Abstract

A pinch detection device, for detecting the occurrence of pinch during closing of one pair of sliding doors, is composed of a first door front edge rubber to be attached to an edge portion in a closing movement direction of one sliding door of the one pair of sliding doors, and a second door front edge rubber to be attached to an edge portion in a closing movement direction of an other sliding door of the one pair of sliding doors. The first door front edge rubber includes a recessed portion, which is open toward the second door front edge rubber, with a linear shape pressure sensitive sensor, which is sensitive to a pressure in the event of pinch, being disposed in that recessed portion.

First claim

What is claimed is:

1. A pinch detection device, for detecting an occurrence of pinch during closing of one pair of sliding doors, comprising:
a first door front edge rubber to be attached to an edge portion in a closing movement direction of one sliding door of the one pair of sliding doors; and
a second door front edge rubber to be attached to an edge portion in a closing movement direction of an other sliding door of the one pair of sliding doors,
wherein the first door front edge rubber includes a recessed portion, which is open toward the second door front edge rubber, with a linear shape pressure sensitive sensor, which is sensitive to a pressure in an event of pinch, being disposed in that recessed portion,
wherein the pinch detection device further includes a holding member comprising an elastic body with a hollow portion therein, with the pressure sensitive sensor disposed in the recessed portion being accommodated and held in that hollow portion, which holds the pressure sensitive sensor on an exterior of the first door front edge rubber,
wherein the second door front edge rubber includes a protrusion to be at least partially mated into the recessed portion during closing of the one pair of sliding doors, and
wherein the protrusion of the second door front edge rubber includes a tip surface formed in a concave curved shape on a surface of the protrusion of the second door front edge rubber.

2. The pinch detection device according to claim 1 ,
wherein the holding member integrally includes a base section, which is attached to a bottom surface of the recessed portion and a cylindrical holding portion, which is formed with the hollow portion in a central portion thereof, with a width of the base section in a thickness direction of the one sliding door being wider than a width of the holding portion in the same thickness direction, with the pressure sensitive sensor being positioned in the thickness direction of the one sliding door by the base section, with gaps being formed between the holding portion and side surfaces, respectively, of the recessed portion.

3. The pinch detection device according to claim 1 , wherein the first door front edge rubber includes a hollow space in a vehicle exterior side relative to the recessed portion, with a linear shape pressure sensitive sensor, which is sensitive to a pressure from the vehicle exterior side relative to the recessed portion, being disposed within that hollow space.

4. The pinch detection device according to claim 1 , wherein the first door front edge rubber includes a hollow space in a vehicle interior side relative to the recessed portion, with a linear shape pressure sensitive sensor, which is sensitive to a pressure from the vehicle interior side relative to the recessed portion, being disposed within the hollow space.

5. The pinch detection device according to claim 1 , wherein the second door front edge rubber includes a hollow space in a rear position of the protrusion in the closing movement direction of the other sliding door, with a linear shape pressure sensitive sensor, that is sensitive to a pressure from the protrusion in the event of pinch in that closing movement direction, being disposed within that hollow space.

6. The pinch detection device according to claim 1 , wherein the second door front edge rubber includes a hollow space in the vehicle exterior side relative to a rear position of the protrusion in the closing movement direction of the other sliding door, with a linear shape pressure sensitive sensor, that is sensitive to a pressure from the vehicle exterior side relative to the protrusion, being disposed within that hollow space.

7. The pinch detection device according to claim 1 , wherein the second door front edge rubber includes a hollow space in the vehicle interior side relative to the rear position of the protrusion in the closing movement direction of the other sliding door, with a linear shape pressure sensitive sensor, that is sensitive to a pressure from the vehicle interior side relative to the protrusion, being disposed within that hollow space.

8. The pinch detection device according to claim 1 , wherein the holding member is disposed on an exterior of a first door front edge rubber.

9. The pinch detection device according to claim 1 , wherein the tip surface at least partially comes into contact with the holding portion during closing of the one pair of sliding doors.

Assignees

• Hitachi Metals Ltd

Inventors

• Kawase Kenji
• Suzuki Shuichi

Classifications

• E05Y2900/51

  for railway cars or mass transit vehicles · CPC title

• B61D19/026 Primary

  Safety devices for preventing passengers from being injured by movements of doors or variations in air pressure (safety devices in passenger lifts for preventing trapping of passengers between closing doors B66B13/26; acting on power-operated mechanisms for wings E05F15/00) · CPC title

• E05F15/44

  responsive to changes in electrical conductivity · CPC title

• E05F15/42 Primary

  Detection using safety edges · CPC title

• G01V3/02 Primary

  operating with propagation of electric current · CPC title