CN208439122U - The riveted structure of automobile chair frame - Google Patents

Abstract

The utility model discloses a kind of riveted structure of automobile chair frame, the automobile chair frame includes the first bar portion, the second bar portion, third bar portion, the 4th bar portion formed by a hollow tubular product bending, there is the first end and second end for being stitched together in first bar portion, the first end draw reduction outer diameter makes first end be inserted into the inside of second end, which the position that second end overlaps is provided with multiple riveting points so that first end and second end is deformed inward mutually rivets tightly.By riveted structure, it is tightly coupled first end and second end, drawing can not be such that first end extracts from second end energetically, can pass through the tensile test standard of automotive seat.In addition to this, the connection of first end and second end is realized using riveted structure, replaces traditional welding connection type, avoids the fragile problem easy to crack of position while welding.

Description

The riveted structure of automobile chair frame

Technical field

The utility model relates to metal product field technologies, refer in particular to a kind of riveted structure of automobile chair frame.

Background technique

The board-like steel or aluminium skeleton that existing backrest frames mainly use metal plate to weld, this board-like steel or aluminium skeleton The welding of sheet metal parts of punching press is fitted together by welding, forms the frame structure of " mouth " shape, it is this board-like The forming of the sheet metal component structure of steel or aluminium skeleton is complicated, required stamping die is costly.In addition to this, it is relatively conventional also Circular tube shaped backrest is responsible for skeleton, using steel or magnesium alloy pipe, realize backrest supervisor by a pipe bending forming, It is welded at the head and the tail both ends of tubing.However not without being that metal plate welding or tubing weld, stress collection can be had the following deficiencies: In it is bigger, have biggish welding residual stress and distortion, exist generate welding defect a possibility that, joint performance unevenly and Crack arrest difference etc..

Utility model content

In view of this, the utility model is in view of the existing deficiencies of the prior art, main purpose is to provide a kind of automotive seats The riveted structure of chair skeleton, easy processing, riveting intensity can achieve the tensile test standard of seat, and bonding strength is high at riveting, Not easy to break and disengaging.

To achieve the above object, the utility model is using following technical solution:

A kind of riveted structure of automobile chair frame, the automobile chair frame include being formed by a hollow tubular product bending First bar portion, the second bar portion, third bar portion, the 4th bar portion have the first end for being stitched together in first bar portion And second end, the first end draw reduction outer diameter make first end be inserted into the inside of second end, the first end and the The position that two endlaps are closed is provided with multiple riveting points so that first end and second end is deformed inward mutually rivets tightly.

As a preferred embodiment, there are a two rows in the riveting point, first row riveting point close to first end port position, Port position of the two row riveting points close to second end.

As a preferred embodiment, every row riveting point is by proportional spacing be distributed in first end and second end periphery more A riveting point is constituted.

As a preferred embodiment, second bar portion and the 4th bar portion are parallel to each other, and the second bar portion is compared with the 4th bar portion Shorter, first bar portion and third bar portion are connected between the second bar portion and the 4th bar portion, form ladder-shaped frame.

As a preferred embodiment, it locally flattens to form the second recess portion and the second protrusion in second bar portion, this second The most concave point of recess portion misses one another with the most salient point of second protrusion.

As a preferred embodiment, it locally flattens to form third recess portion and third protrusion in the third bar portion, the third The most concave point of recess portion is opposite to each other with the most salient point of the third protrusion.

As a preferred embodiment, the automobile chair frame is equipped with plane in multiple positions.

The utility model has clear advantage and beneficial effect compared with prior art, specifically, by above-mentioned technology Scheme is tightly coupled first end and second end, drawing can not make first end from second end energetically it is found that by riveted structure Middle extraction can pass through the tensile test standard of automotive seat.In addition to this, first end and second end is realized using riveted structure Connection, replace traditional welding connection type, avoid the fragile problem easy to crack of position while welding.

For the structure feature and effect for more clearly illustrating the utility model, come with reference to the accompanying drawing with specific embodiment pair The utility model is described in detail.

Detailed description of the invention

Fig. 1 is the schematic diagram of the automobile chair frame of the embodiment of the utility model.

Fig. 2 is the cross-sectional view of A-A in Fig. 1.

Fig. 3 is the cross-sectional view of B-B in Fig. 1.

Fig. 4 is the cross-sectional view of C-C in Fig. 1.

Fig. 5 is the cross-sectional view of D-D in Fig. 1.

Description of drawing identification:

10, the first bar portion 11, first end

12, second end 13, riveting point

20, the second bar portion 21, the second recess portion

22, the second protrusion 30, third bar portion

31, third recess portion 32, third protrusion

40, the 4th bar portion 50, plane.

Specific embodiment

It please refers to shown in Fig. 1 to Fig. 5, it to be a kind of that show the specific structures of the preferred embodiment of the utility model The riveted structure of automobile chair frame, the automobile chair frame include the first bar portion 10 formed by a hollow tubular product bending, Second bar portion 20, third bar portion 30, the 4th bar portion 40 have the first end 11 for being stitched together in first bar portion 10 With second end 12, the 11 draw reduction outer diameter of first end makes first end 11 be inserted into the inside of second end 12, this One end 11 is provided with multiple riveting points 13 so that first end 11 and second end 12 are deformed inward phase with the position that second end 12 overlaps Mutually rivet tightly.By this riveted structure, it is tightly coupled first end 11 and second end 12, drawing can not make first end 11 energetically It is extracted from second end 12, the tensile test standard of automotive seat can be passed through.In addition to this, first is realized using riveted structure The connection at end 11 and second end 12 replaces traditional welding connection type, avoids that position while welding is fragile easy to crack and what is easily got rusty asks Topic.

Wherein, as shown in Figures 2 and 3, there are two rows in the riveting point 13, and first row riveting point 13 is close to the end of first end 11 Mouth position, port position of the second row riveting point 13 close to second end 12.In this way, 13 double shield of two rows of riveting points, effectively anti- Only first end 11 and second end 12 disengage.In the present embodiment, every row riveting point 13 is by proportional spacing to be distributed in first end 11 It is constituted with multiple riveting points 13 of 12 periphery of second end, such as 4 riveting points 13 in attached drawing, but first end 11 and the can be made Two ends 12 are mutually riveted tightly, and cannot come off.

As shown in Figure 1, second bar portion 20 and the 4th bar portion 40 are parallel to each other, and the second bar portion 20 is compared with the 4th bar portion 40 Shorter, first bar portion 10 and third bar portion 30 are connected between the second bar portion 20 and the 4th bar portion 40, are formed trapezoidal Frame.In use, then at the ladder-shaped frame outer cladding sponge, which is installed on automotive seat.

As shown in figure 4, locally flatten to form the second recess portion 21 and the second protrusion 22 in second bar portion 20, this is second recessed The most concave point in portion 21 misses one another with the most salient point of second protrusion 22.As shown in figure 5, locally being flattened in the third bar portion 30 Form third recess portion 31 and third protrusion 32, the most salient point of the most concave point of the third recess portion 31 and the third protrusion 32 is each other just It is right.Positional relationship between this change most concave point and most salient point, thus it is possible to vary the support force of bar, when bar is in different orientation stress Afterwards, the direction that bar is deformed is also different.And the design of these recess portions and protrusion, the evacuation that can also be formed when assembly are empty Between, screwed lock maintenance etc..In addition, the automobile chair frame is equipped with plane 50 in multiple positions, it can be with seat corresponding position Contact of the forming face with face increases contact area, it is easier to reach stress balance.

The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model Any restrictions, therefore any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent change Change and modify, is still within the scope of the technical solutions of the present invention.

Claims (7)

1. a kind of riveted structure of automobile chair frame, it is characterised in that: the automobile chair frame includes by a hollow tubular product The first bar portion (10), the second bar portion (20), third bar portion (30), the 4th bar portion (40) of bending formation, first bar portion (10) there is the first end (11) and second end (12) for being stitched together, first end (11) the draw reduction outer diameter makes on Obtain the inside that first end (11) are inserted into second end (12), the position setting of the first end (11) and second end (12) overlapping There are multiple riveting points (13) so that first end (11) and second end (12) are deformed inward and mutually rivet tightly.

2. the riveted structure of automobile chair frame according to claim 1, it is characterised in that: the riveting point (13) has two Row, first row riveting point (13) close to the port position of first end (11), second row riveting point (13) are close to second end (12) Port position.

3. the riveted structure of automobile chair frame according to claim 1, it is characterised in that: every row riveting point (13) be by The multiple riveting points for being distributed in proportional spacing first end (11) and second end (12) periphery are constituted.

4. the riveted structure of automobile chair frame according to claim 1, it is characterised in that: second bar portion (20) and 4th bar portion (40) is parallel to each other, and the second bar portion (20) is shorter compared with the 4th bar portion (40), first bar portion (10) and third Bar portion (30) is connected between the second bar portion (20) and the 4th bar portion (40), forms ladder-shaped frame.

5. the riveted structure of automobile chair frame according to claim 1, it is characterised in that: on second bar portion (20) Part is flattened to form the second recess portion (21) and the second protrusion (22), the most concave point of second recess portion (21) and second protrusion (22) Most salient point miss one another.

6. the riveted structure of automobile chair frame according to claim 1, it is characterised in that: on the third bar portion (30) Part is flattened to form third recess portion (31) and third protrusion (32), the most concave point of the third recess portion (31) and the third protrusion (32) Most salient point be opposite to each other.

7. the riveted structure of automobile chair frame according to claim 1, it is characterised in that: the automobile chair frame exists Multiple positions are equipped with plane (50).