Latch Assembly

Abstract

To provide a latch assembly in which rattling noise can be reduced.SOLUTION: A latch assembly according to an embodiment comprises: a latch bracket that is mounted on a seat back frame; a latch whose rear part is hinge-joined to a latch bracket and whose front part is bent downward, in which a claw part is formed at an end part; a cable connected to an upper surface of the latch; a bar to be pressed positioned below the rear part of the latch; a pressing bar positioned horizontally below the claw part; and a link frame that connects the bar to be pressed to the pressing bar so that the pressing bar moves up when the bar to be pressed is pressed downward by the latch, which is joined to the latch bracket.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a latch assembly. [Background technology]

[0002] Korean Patent Publication No. 10-2163881 discloses a latch assembly for adjusting a seat back of a vehicle.

[0003] The latch assembly disclosed in the publication includes a latch bracket attached to a seat back frame of a vehicle seat back; a body portion supported by the latch bracket, a latch configured by a claw portion bent downward from the front side of the body portion and having a plurality of fastening grooves spaced apart upward from its lower end, and a bracket connecting portion formed at the upper end of the body portion; a rotating bracket hingedly connected to the bracket connecting portion; and a cable connected to the rotating bracket.

[0004] The above-mentioned latch assembly has a problem in that a rattle noise is generated during operation because the striker is fixed in only one direction (from top to bottom) by the latch. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Korean Patent No. 10-2163881 (Announced on October 13, 2020) Summary of the Invention [Problem to be solved by the invention]

[0006] The problem that the present disclosure seeks to solve is to provide a latch assembly that exhibits reduced rattle noise. [Means for solving the problem]

[0007] The latch assembly according to the embodiment includes a latch bracket attached to a seat back frame, a latch whose rear portion is hinged to the latch bracket and whose front portion is bent downward and has a claw portion formed at its end, a cable connected to the upper surface of the latch, a pressurized bar located below the rear portion of the latch, a pressure bar located horizontally below the claw portion, and a link frame connected to the latch bracket, connecting the pressurized bar and the pressure bar so that the pressure bar rises when the pressurized bar is pressed downward by the latch.

[0008] In addition, the latch bracket of the latch assembly according to the embodiment may include a connection portion attached to the seat back frame and a support plate portion arranged vertically on one side of the connection portion, and the link frame may have one end connected to the pressed bar and the other end connected vertically to the pressure bar, and the body may be hingedly connected to the support plate portion.

[0009] In addition, the latch assembly according to the embodiment may further include a return spring having one end coupled to the support plate portion and the other end coupled to the pressure bar to apply a downward elastic restoring force to the pressure bar.

[0010] Furthermore, the latch assembly according to the embodiment may further include a return spring having one end coupled to the latch bracket and the other end coupled to the latch to apply a downward elastic restoring force to the latch.

[0011] In addition, the ends of the claws of the latch assembly according to the embodiment may be bent toward the joint. Effect of the Invention

[0012] In the latch assembly according to the embodiment, the latch and the pressure bar secure the striker from both directions, improving the securing force and reducing rattle noise. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 illustrates a perspective view of a latch assembly according to an embodiment. [Diagram 2] FIG. 1 illustrates an exploded view of a latch assembly according to an embodiment. [Diagram 3] 1 is a diagram illustrating a state in which a latch assembly is used according to an embodiment. [Figure 4] FIG. 4 is a side view of FIG. [Diagram 5] 1 is a diagram illustrating a state in which a latch assembly is used according to an embodiment. [Figure 6] FIG. 6 is a side view of FIG. 5. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] The advantages, features, and methods of achieving the present disclosure will become apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below, and can be realized in various different forms. However, the present embodiments are provided to complete the disclosure and to fully inform those skilled in the art of the present disclosure of the scope of the invention. The present disclosure is defined solely by the scope of the claims. The same reference numerals refer to the same elements throughout the specification.

[0015] Referring to FIG. 1, which is an oblique view of a latch assembly 100 according to an embodiment (hereinafter referred to as "latch assembly 100"), and FIG. 2, which is an exploded view of the latch assembly 100, the latch assembly 100 includes a latch bracket 110, a latch 120, a pressure bar 130, a pressure bar 140, a link frame 150, and a cable 160.

[0016] The latch assembly 100 is mounted to the seat back frame for adjusting the seat back and is coupled to a striker S mounted adjacent the vehicle body and extending therefrom.

[0017] That is, the position is specified by coupling the scribber S with a latch 120 (described later), and the seat back can be adjusted in multiple inclination stages according to the coupling position of the latch 120.

[0018] The latch bracket 110 is attached to the seat back frame and includes a connecting portion 111 and a support plate portion 112 .

[0019] The connecting portion 111 is plate-shaped and is connected to the seat back frame.

[0020] The support plate 112 is provided vertically on one side of the coupling portion 111. In addition, the support plate 112 guides and supports a latch 120 (described later), and may have guide grooves 112a formed on the front and side surfaces so that the striker S can be coupled to the latch 120.

[0021] The hinge portion 113 may be horizontally coupled to the support plate portion 112, and the latch 120 is hinged to it.

[0022] The latch 120 is hinged to the latch bracket 110. Specifically, the latch 120 includes a body portion 121 and a claw portion 122.

[0023] The body portion 121 is plate-shaped, and its rear portion is hinged to the hinge portion 113 of the latch bracket 110 .

[0024] The claw portion 122 is bent downward from the front portion of the body portion 121. A fastening groove 122a is formed at the end of the claw portion 122 so that the striker S can be coupled thereto. The end of the claw portion 122 may also be bent toward the coupling portion 111. By configuring the end of the claw portion 122 to be bent, it is possible to more effectively prevent the latch 120 from rotating when a collision load occurs.

[0025] The hinge portion 113 of the latch bracket 110 may be provided with a return spring 113a.

[0026] The return spring 113a may have one end coupled to the latch bracket 110 and the other end coupled to the latch 120. Specifically, the return spring 113a has one end coupled to either the coupling portion 111 or the support plate portion 112 of the latch bracket 110 and the other end coupled to the body portion 121 of the latch 120, thereby applying an elastic restoring force to the latch 120 when the latch 120 rotates around the hinge portion 113.

[0027] The pressed bar 130 is rod-shaped with a predetermined length, and is located below the rear part of the latch 120. Specifically, the pressed bar 130 is located directly below the body part 121 of the latch 120, and is provided at a position where it can be moved downward by the body part 121 of the latch 120 when the latch 120 rotates downward.

[0028] The pressure bar 140 is rod-shaped with a predetermined length, and is positioned horizontally below the claw portion 122 of the latch 120. Specifically, the pressure bar 140 may be rod-shaped with a length approximately equal to the width of the claw portion 122 of the latch 120, and is positioned horizontally below the claw portion 122 of the latch 120. In this case, the pressure bar 140 may be positioned in front of and below the claw portion 122 of the latch 120.

[0029] The link frame 150 connects the pressed bar 130 and the pressing bar 140, and is connected to the latch bracket 110, so that the pressing bar 140 rises when the pressed bar 130 is pressed downward by the latch 120. Specifically, the link frame 150 is rod-shaped with an obtuse angle formed by both ends, one end of which is connected to the pressed bar 130 and the other end of which is perpendicularly connected to the end of the pressing bar 140, and the body of the link frame 150 is hinged to the support plate portion 112 of the latch bracket 110.

[0030] The body of the link frame 150 may be provided with a return spring 151 .

[0031] The return spring 151 may have one end coupled to the latch bracket 110 and the other end coupled to the pressure bar 140. Specifically, the return spring 151 has one end coupled to either the coupling portion 111 or the support plate portion 112 of the latch bracket 110 and the other end coupled to an end of the pressure bar 140, thereby applying an elastic restoring force to the pressure bar 140 when the pressure bar 140 rotates with respect to the body of the link frame 150.

[0032] A cable 160 is coupled to the top surface of the latch 120 and serves to lift the front portion of the latch 120 .

[0033] A method of operation of the latch assembly 100 will be described with reference to FIGS. 3 to 6, which are views showing a state of use and a side view of the latch assembly 100.

[0034] 3 and 4, which is a side view of FIG. 3, when the cable 160 is pulled upward, the latch 120 that has been pressing the pressed bar 130 downward rotates upward. When the latch 120 rotates upward and the force pressing the pressed bar 130 downward is removed, the pressure bar 140 rotates downward with the body of the link frame 150 as a reference by the return spring 151.

[0035] Since the latch 120 rotates upward and the pressure bar 140 rotates downward, the striker S is released from the fastening groove 122a of the claw portion 122. This allows the user to adjust the angle of the seat back.

[0036] 5 and FIG. 6, which is a side view of FIG. 5, when the force pulling the cable 160 is removed in the state of FIG. 3, the latch 120 rotates downward by the return spring 113a. At this time, the pressed bar 130 located below the body part 121 is pressed downward by the latch 120 rotating downward. Then, the pressing bar 140 rises based on the body of the link frame 150. As a result, the striker S is pressed upward by the latch 120 and downward by the pressing bar 140 while inserted into the fastening groove 122a of the claw part 122, and rattle noise is significantly reduced.

[0037] The expressions (terms, visualized images, etc.) used in describing the embodiments of the present disclosure are merely selected for instrumental purposes to enhance understanding of the technology.

[0038] Furthermore, the present disclosure has been described with respect to a limited number of embodiments, and a person skilled in the art may devise new embodiments based on the described embodiments without departing from the technical spirit of the present disclosure.

[0039] Therefore, the scope of the claims of the present disclosure should not be limited by some expressions shown in the "Description of the Invention" and the "Drawings", but should be broadly interpreted based on the technical ideas of the present application inherent in the entire specification. [Explanation of symbols]

[0040] 100 Latch Assembly 110 Latch bracket 111 Joint 112 Support plate part 112a Guide groove 113 Hinge part 113a Return spring 120 Latch 121 Body 122 Claw part 122a Fastening groove 130 Pressed bar 140 Pressure Bar 150 Link Frame 151 Return spring 160 Cable

Claims

1. a latch bracket attached to the seat back frame; a latch having a rear portion hinged to the latch bracket, a front portion bent downward, and a claw portion formed at an end thereof; a cable coupled to an upper surface of the latch; a pressure bar located below the rear portion of the latch; A pressure bar positioned horizontally below the claw portion; a link frame connected to the latch bracket, the link frame connecting the pressure bar and the pressure bar such that the pressure bar rises when the pressure bar is pressed downward by the latch.

2. The latch bracket is A coupling portion attached to the seat back frame; a support plate portion provided perpendicularly to one side of the coupling portion, The link frame includes:

2. The latch assembly of claim 1, wherein one end is connected to said pressure receiving bar and the other end is connected perpendicularly to said pressure bar, and a body is hingedly connected to said support plate portion.

3. 3. The latch assembly according to claim 2, further comprising a return spring having one end connected to said support plate portion and the other end connected to said pressure bar for applying a downward elastic restoring force to said pressure bar.

4. 2. The latch assembly of claim 1, further comprising a return spring having one end coupled to said latch bracket and an opposite end coupled to said latch for exerting a downward elastic restoring force on said latch.

5. 3. The latch assembly according to claim 2, wherein an end of said claw portion is bent toward said coupling portion.

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