Lower connecting piece of automobile seat angle adjuster

Abstract

The utility model provides a lower connecting piece of an automobile seat angle adjuster. The lower connecting piece comprises a left side plate, a right side plate, a front connecting piece and a rear connecting piece. The front connecting piece and the rear connecting piece are respectively connected between the left side plate and the right side plate to form a stable frame structure; the two sides of the front connecting piece and the two sides of the rear connecting piece are each symmetrically provided with a plurality of protruding parts, the protruding parts serve as welding feet and are used for being welded to the left side plate and the right side plate, the welding area is increased through the design of the protruding parts, and welding firmness and stability are improved. The front connecting piece and the rear connecting piece are welded to the left side plate and the right side plate to form a stable frame structure, the protruding parts are arranged on the two sides of the front connecting piece and the two sides of the rear connecting piece, and the protruding parts serve as welding feet, so that the welding area is increased, and welding firmness and stability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts preparation, particularly to a lower connecting piece of an automobile seat angle adjuster. BACKGROUND

[0002] The angle adjuster of the automobile seat is a force bearing device installed between the backrest and the seat pan, mainly realizing the folding movement of the seat backrest inclination angle to adapt to different human body posture requirements. It is connected with the seat backrest through the upper connecting plate and connected with the seat pan through the lower connecting plate.

[0003] The lower connecting plate undertakes the key task of connecting the angle adjuster and the seat chassis, and the main function is to tightly connect the angle adjuster and the seat chassis together to form a stable support structure. The lower connecting plate is usually made by stamping, welding or casting manufacturing process. It has high requirements for material hardness, structural strength and surface roughness, etc., so as to guarantee the strength and durability of the seat structure.

[0004] The lower connecting plate is usually composed of a left side plate, a right side plate and a middle connecting piece. When the middle connecting piece is welded with the two side plates, there are problems such as insufficient welding strength and easy variability caused by virtual welding, which affect the overall performance of the seat.

[0005] Therefore, it is necessary to improve the prior art. UTILITY MODEL CONTENTS

[0006] The utility model provides a lower connecting piece of an automobile seat angle adjuster to solve the above problems.

[0007] One of the technical schemes adopted by the utility model is to provide a lower connecting piece of an automobile seat angle adjuster, comprising: a left side plate, a right side plate, a front connecting piece and a rear connecting piece.

[0008] The front connecting piece and the rear connecting piece are respectively connected between the left side plate and the right side plate to form a stable frame structure.

[0009] The front connecting piece and the rear connecting piece are respectively connected between the left side plate and the right side plate to form a stable frame structure.

[0010] Further, the protrusions on the same side are coplanar.

[0011] Further, the front connecting piece and the rear connecting piece are welded with the left side plate and the right side plate by energy storage welding.

[0012] Further, the rear connecting piece is designed as a multi-segment curve structure, including at least one arc segment and one straight segment, the arc segment and the straight segment alternately form the multi-segment curve structure, so that more complex stress distribution is formed in the lower connecting piece after welding, and the overall strength is enhanced.

[0013] The automobile seat angle adjuster lower connecting piece has the advantages that:

[0014] 1. The front and rear connecting pieces are welded with the left and right side plates to form a stable frame structure, and the protrusions are arranged on the two sides of the front and rear connecting pieces, so that the welding area is increased and the welding firmness and stability are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a perspective view of the automobile seat angle adjuster lower connecting piece according to the first embodiment of the present application;

[0016] Fig. 2 is a perspective view of the automobile seat angle adjuster lower connecting piece according to the first embodiment of the present application;

[0017] Fig. 3 is a perspective view of the front connecting piece in the first embodiment of the present application;

[0018] Fig. 4 is a perspective view of the rear connecting piece in the first embodiment of the present application;

[0019] The marks of the components in the drawings are as follows: 1, left side plate, 2, right side plate, 3, front connecting piece, 4, rear connecting piece, 31, protrusion, 41, arc segment, 42, straight segment. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present application will be described in detail below with reference to the drawings, so that the advantages and features of the present application can be more easily understood by those skilled in the art, and the protection scope of the present application can be more clearly defined.

[0021] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "horizontal", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and cannot indicate or imply that the components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0022] Please refer to Figs. 1 to 4 The first embodiment of the present application provides an automobile seat angle adjuster lower connecting piece, which comprises: a left side plate 1, a right side plate 2, a front connecting piece 3 and a rear connecting piece 4.

[0023] The front connecting piece 3 and the rear connecting piece 4 are arranged between the left side plate 1 and the right side plate 2, and the side edges thereof are welded and fixed to the left side plate 1 and the right side plate 2 by means of energy storage welding, so as to form a stable frame structure;

[0024] The front connecting piece 3 comprises a straight line section for welding, and five pairs of protrusions 31 are arranged on both sides of the straight line section, which are uniformly distributed and used as welding feet for welding the left side plate 1 and the right side plate 2, and the design of the protrusions 31 increases the welding area and improves the welding firmness and stability;

[0025] The rear connecting piece 4 is designed as a multi-segment curve structure, comprising two arc sections 41 and two straight line sections 42, and the arc sections 41 and the straight line sections 42 alternately form the multi-segment curve structure, so that more complex stress distribution is formed in the lower connecting piece after welding, and the overall strength is enhanced, and the side surface of the multi-segment curve structure is also provided with four pairs of protrusions which are the same as the protrusions 31 on the front connecting piece 3 and are also used as welding feet for welding the left side plate 1 and the right side plate 2, and the protrusions are located on the side surface of the straight line section 42 or the side surface of the junction between the straight line section 42 and the arc section 41.

[0026] Specifically, the protrusions located on the same side are coplanar, and the interval and height of the protrusions are designed according to the actual thickness of the front connecting piece 3 or the rear connecting piece 4, so as to guarantee the welding range and the welding strength and flatness.

[0027] The front connecting piece 3 and the rear connecting piece 4 need a certain thickness, so that the lower connecting piece is not deformed when subjected to a lateral impact force, and the thickness is increased with the increase of the width.

[0028] The automobile seat angle adjuster lower connecting piece has the following beneficial effects:

[0029] 1. The front and rear connecting pieces are welded with the left and right side plates to form a stable frame structure, and the protrusions are arranged on both sides of the front and rear connecting pieces, so that the protrusions are used as welding feet to increase the welding area and improve the welding firmness and stability;

[0030] 2. The curve structure design of the rear connecting piece can enhance the overall strength of the lower connecting piece after welding and improve the reliability and safety of the seat;

[0031] 3. The lower connecting piece has a simple structure, is easy to manufacture and has low cost, and is suitable for large-scale popularization and application.

[0032] The above description is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields is also included in the patent protection range of the utility model.

Claims

1. A lower connecting piece of a car seat recliner, characterized in that: The utility model relates to a kind of frame structure, including: Left side plate, right side plate, front connecting piece and rear connecting piece; The front connecting piece and rear connecting piece are connected between left side plate and right side plate respectively, and form stable frame structure; The two sides of the front connecting piece and rear connecting piece are symmetrically provided with several convex parts, and the convex parts are used as welding leg for welding with left side plate and right side plate.

2. The lower link of an automobile seat recliner according to claim 1, wherein The convex parts located on the same side are coplanar.

3. A lower link of an automobile seat recliner according to any one of claims 1 or 2, characterized in that, The front connecting piece and rear connecting piece are welded with left side plate and right side plate by energy storage welding.

4. The lower link of an automobile seat recliner according to claim 3, wherein The rear connecting piece is designed as a multi-segment curve structure, including at least one arc segment and one straight segment, and the arc segment and straight segment alternately form a multi-segment curve structure.

5. A lower link of an automobile seat recliner according to any one of claims 1 or 2, characterized in that, The rear connecting piece is designed as a multi-segment curve structure, including at least one arc segment and one straight segment, and the arc segment and straight segment alternately form a multi-segment curve structure.

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