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KR-102959919-B1 - LATCH APPARATUS FOR VEHICLE

KR102959919B1KR 102959919 B1KR102959919 B1KR 102959919B1KR-102959919-B1

Abstract

The present invention relates to a latch device for a vehicle, comprising a housing, a catch portion rotatably installed in the housing and restraining a striker entering the housing, a locking portion that selectively contacts the catch portion to switch the catch portion to a fully locked state, and a control portion that detects the rotational position of the catch portion and controls the locking portion, wherein the control portion is composed of a two-stage switch that detects the position of the catch portion, thereby improving signal stability.

Inventors

  • 이병국
  • 최우성
  • 이상혁
  • 하준형
  • 전우현

Assignees

  • 피에이치에이 주식회사

Dates

Publication Date
20260507
Application Date
20231110

Claims (10)

  1. Housing; A catch portion rotatably installed in the above housing and restraining a striker entering the above housing; A squeezing part that selectively contacts the above catch part and switches the above catch part to a fully locked state; and It includes a control unit that detects the rotational position of the catch unit and controls the squeezing unit, The above catch portion is rotatably provided in the housing and has a claw formed with a restraining groove into which the striker can be inserted; and It includes a foul that engages with a first locking member and a second locking member formed on the claw according to the degree of rotation of the claw, thereby restricting the rotation of the claw. The above control unit includes a first switch that turns on/off according to the position of the foul; A second switch that turns on/off depending on the position of the above claw; and It includes a control unit that operates the swiping unit based on the on/off detection values of the first switch and the second switch, and It includes an aza lever rotatably installed in the above housing and linked to the rotation of the claw, The second switch above is in contact with the aza lever, and The above aza lever is an interlocking bar formed on one side and in contact with the circumferential surface of the claw; and It includes a contact portion formed on the opposite side of the above linkage bar and gradually contacting the second switch according to the rotation of the above lever, The above second switch is composed of a two-stage switch, and The on/off of the first stage signal and the on/off of the second stage signal are transmitted to the control unit according to the degree of contact with the contact part resulting from the movement of the above aza lever, and A latch device for a vehicle characterized in that, after the door of the vehicle is opened, the first stage signal and the second stage signal are in an ON state, and the locking part is operated from the point when the first switch is turned OFF for the first time, and subsequently, the first switch is turned ON again, and after the first stage signal and the second stage signal are turned OFF, the operation of the locking part is maintained until the point when the first switch is turned OFF for the second time.
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  3. In Article 1, The above-mentioned squeezing part is rotatably provided in the housing and is a squeezing cable lever that rotates by the operation of an actuator controlled by the control unit; and A latch device for a vehicle characterized by including a squeezing operating lever that is hinge-connected to one end of the squeezing cable lever and is linked to the rotation of the squeezing cable lever to press the claw and move the claw to a fully locked position.
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  5. In Article 1, A latch device for a vehicle characterized by a pawl switch lever being hinge-connected to the pawl so as to contact the first switch.
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Description

Latch apparatus for vehicle The present invention relates to a latch device for a vehicle, and more specifically, to a latch device for a vehicle that can improve signal stability and reduce costs by applying a two-stage switch to the switch that detects the position of the catch part. Generally, latch devices installed in vehicles lock and unlock the door during the opening and closing process using mechanical restraining force. In other words, when a user pulls the door handle, the door handle and the latch mechanism are mechanically connected, allowing the door to be unlocked. Conventionally, when the user closes the door weakly, it enters a first-stage locking state, but there is a problem that if no additional force is applied to the door, a dangerous situation such as the door opening occurs. Therefore, there is a need to improve this. The background technology of the present invention is disclosed in Korean Published Patent Application No. 2005-0050652 (published May 31, 2005; Title of Invention: Driving Device and Door Closer). FIG. 1 is a perspective view for explaining a latch device for a vehicle according to one embodiment of the present invention. FIG. 2 is a different angle of illustration for explaining a latch device for a vehicle according to one embodiment of the present invention. FIG. 3 is a drawing for explaining the opening operation of a latch device for a vehicle according to one embodiment of the present invention. FIG. 4 is a graph showing the latching sequence of a vehicle latch device according to one embodiment of the present invention. FIG. 5 is a diagram illustrating a second switch signal system of a vehicle latch device according to one embodiment of the present invention. FIG. 6 is an enlarged view of a key part of a latch device for a vehicle according to one embodiment of the present invention. FIG. 7 is a drawing showing the operation of a second switch of a vehicle latch device according to one embodiment of the present invention. Hereinafter, a preferred embodiment of a latch device for a vehicle according to an embodiment of the present invention will be described with reference to the attached drawings. In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation. Furthermore, the terms described below are defined in consideration of their functions in the present invention, and these may vary depending on the intent or practice of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification. FIG. 1 is a perspective view for explaining a vehicle latch device according to an embodiment of the present invention, FIG. 2 is a perspective view from another angle for explaining a vehicle latch device according to an embodiment of the present invention, FIG. 3 is a drawing for explaining the opening operation of a vehicle latch device according to an embodiment of the present invention, FIG. 4 is a graph showing the opening sequence of a vehicle latch device according to an embodiment of the present invention, FIG. 5 is a drawing for explaining the switch signal system of a vehicle latch device according to an embodiment of the present invention, FIG. 6 is an enlarged view of a key part of a vehicle latch device according to an embodiment of the present invention, and FIG. 7 is a drawing showing the operation of a second switch of a vehicle latch device according to an embodiment of the present invention. Referring to FIGS. 1 to 7, a latch device (100) for a vehicle according to one embodiment of the present invention includes a housing (110), a catch part (120), a squeezing part (130), and a control part (140). The housing (110) is mounted on the vehicle body. The housing (110) has a moving hole (not shown) formed therein to guide the movement of the striker (not shown). The catch portion (120) is rotatably installed in the housing (110) and restrains a striker entering the housing (110). It may include a claw (122) that is rotatably provided in the housing (110) and has a restraining groove (123) into which a striker can be inserted, and a foul (127) that restrains the rotation of the claw (122) by engaging with a first locking portion (124) and a second locking portion (125) formed on the claw (122) according to the degree of rotation of the claw (122). The claw (122) is equipped with a restoring spring and can be rotated clockwise by the restoring force when the external force is removed. The pawl (127) is rotatably installed in the housing (110) and engages with the claw (122) to restrain the rotation of the claw (122). For example, the pawl (127) can engage with the rotating claw (122) in stages to restrain the claw (122) so that the door is locked in a first stage or fully locked state. The pawl (127) is equipped with a restoring spring, and when the external force is removed, it can be rotated counterclockwise by th