CN209870179U

CN209870179U - Turnover mechanism for rear seats of vehicle

Info

Publication number: CN209870179U
Application number: CN201920479640.3U
Authority: CN
Inventors: 安玉璞
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Automobile Research Institute Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Automobile Research Institute Co Ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2019-12-31
Anticipated expiration: 2029-04-10

Abstract

The utility model provides a tilting mechanism for vehicle back-row seat relates to car seat technical field. The automobile rear seat hinge comprises a middle hinge support, a first shaft sleeve, a second shaft sleeve and a pin shaft, wherein the middle hinge support is fixedly installed on an automobile body, a through hole is formed in the upper portion of the middle hinge support, the middle hinge support is adjacent to the middle hinge support, a mounting hole is formed in each of the rear seats of the automobile, the adjacent rear seats of the automobile are connected through the pin shaft in a pivoting mode, the first shaft sleeve and the second shaft sleeve are sleeved on the pin shaft, and the first shaft sleeve is connected with the rear seats of the automobile in a clamping mode. The utility model provides a pair of a tilting mechanism for vehicle back-row seat for simplify the mounting structure of vehicle back-row seat, reduce vehicle back-row seat installation time, reduce the weight of the mounting structure of vehicle back-row seat, in order to realize the lightweight.

Description

Turnover mechanism for rear seats of vehicle

Technical Field

The utility model relates to a car seat technical field especially relates to a tilting mechanism for vehicle back-row seat.

Background

The automobile seat can be divided into a split seat and a bench seat according to the shape; the functions can be divided into fixed type, detachable type and adjustable type; the number of people can be divided into single, double and multi-person chairs according to the number of the people sitting on the chair. From the earliest fixed seats, to multifunctional power-adjustable seats, there are air cushion seats, power seats, stereo seats, mental recovery seats, to electronic adjustable seats, depending on the performance of the seat. The chair is divided into a leather chair, a flannelette chair and the like according to the material. There are also seats for special objects of use, such as children's seats and racing seats.

Among other things, the rear seats of a vehicle are typically reversible mounting arrangements. In the prior art, the middle hinge assembly of the rear row seat is composed of 4 parts: middle support, middle pivot, mounting panel x 2 and mounting bolt x 5. The total weight was about 1.61 kg. When the seat backrest is installed, the middle hinge assembly is firstly fixed on a vehicle body through 3 bolts, and then the middle hinge assembly and the seat are respectively connected through 2 bolts through 2 backrest installation plates.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is an object to provide a tilting mechanism for vehicle back-row seat to be used for simplifying the mounting structure of vehicle back-row seat, reduce vehicle back-row seat installation time, reduce the weight of the mounting structure of vehicle back-row seat, in order to realize the lightweight.

Particularly, the utility model provides a tilting mechanism for vehicle back row seat, including middle hinge support, first axle sleeve, second axle sleeve and round pin axle, middle hinge support fixed mounting is on the automobile body, middle hinge support upper portion is equipped with the through-hole, and is adjacent vehicle back row seat is equipped with the mounting hole respectively, and adjacent vehicle back row seat passes through but round pin axle pivot ground is connected, first axle sleeve and second axle sleeve are established sell epaxially, first axle sleeve with vehicle back row seat joint.

Optionally, a convex edge for limiting the position of the pin shaft is arranged at one end of the pin shaft; the other end of the pin shaft is provided with an anti-falling part for preventing the first shaft sleeve from falling off.

Optionally, the first sleeve is a trumpet-shaped structure, and comprises a tubular structure and a trumpet opening.

Optionally, tubular structure keeps away from the diameter of horn mouth one end is less than tubular structure connects the diameter of horn mouth one end, tubular structure keeps away from open on the pipe wall of horn mouth one end department has a plurality of to be on a parallel with the groove of tubular structure axis, makes when anticreep portion stretches into in the tubular structure, tubular structure keeps away from horn mouth one end quilt anticreep portion struts.

Optionally, the tubular structure is provided with a protruding snap ring for clamping the mounting hole, and one end of the tubular structure connected with the horn mouth is provided with a reinforcing rib.

Optionally, the diameter of the anti-dropping part is larger than the diameter of the end, far away from the bell mouth, of the tubular structure and smaller than the diameter of the end, connected with the bell mouth, of the tubular structure.

Optionally, the second bushing is clamped on the through hole.

Optionally, the pin is provided with recesses of different diameters.

Optionally, a reinforcing structure is arranged on the middle hinge bracket.

Optionally, the lower end of the middle hinge bracket is welded on the vehicle body.

The utility model provides a pair of a tilting mechanism for vehicle back row seat, including middle hinge support, first axle sleeve, second axle sleeve and round pin axle, middle hinge support fixed mounting is on the automobile body, middle hinge support upper portion is equipped with the through-hole, and is adjacent vehicle back row seat is equipped with the mounting hole respectively, and adjacent vehicle back row seat passes through but round pin axle pivot ground is connected, first axle sleeve and second axle sleeve are established sell epaxially, first axle sleeve with vehicle back row seat joint to improve the mounting means for selling hub connection by the bolt mounting means with back and hinge connection mode among the prior art, make the use quantity that has reduced the bolt, saved the man-hour of beating the bolt on the line, and cancelled the mounting panel with the back, played the subtracts the heavy mesh, help realizing the lightweight of vehicle.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural view of a turnover mechanism for a rear seat of a vehicle according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a turnover mechanism for a rear seat of a vehicle according to an embodiment of the present invention;

fig. 3 is a sectional view of a turnover mechanism for rear seats of a vehicle according to fig. 1;

fig. 4 is an exploded view of the installation of a tilting mechanism for rear seats of a vehicle according to fig. 1;

fig. 5 is a schematic view of a first bushing of a turnover mechanism for rear seats of a vehicle according to fig. 1;

fig. 6 is a schematic structural view of a pin shaft of a turnover mechanism for rear seats of a vehicle according to fig. 1;

fig. 7 is a schematic structural view of a second bushing of a turnover mechanism for rear seats of a vehicle according to fig. 1.

Detailed Description

Fig. 1 is a schematic configuration view of a turnover mechanism for a rear seat of a vehicle according to an embodiment of the present invention. Fig. 2 is a schematic structural view of a turnover mechanism for a rear seat of a vehicle according to an embodiment of the present invention. Fig. 3 is a sectional view of a turnover mechanism for a rear seat of a vehicle according to fig. 1. Fig. 4 is an exploded view illustrating the installation of a turnover mechanism for a rear seat of a vehicle according to fig. 1. As shown in fig. 1 to 4, a turnover mechanism for a rear seat of a vehicle may generally include an intermediate hinge bracket 1, a first boss 2, a second boss 3, and a pin 4. The lower portion of the intermediate hinge bracket 1 is fixedly mounted to the vehicle body by a fastener such as a bolt or by direct welding. The upper part of the middle hinge bracket 1 is provided with a through hole 11. The adjacent vehicle rear seats 5 are respectively provided with mounting holes 51, and the pin shafts 4 pass through the mounting holes 51 and the through holes 11, so that the adjacent vehicle rear seats 5 are pivotably connected by the pin shafts 4. The first shaft sleeve 2 and the second shaft sleeve 3 are sleeved on the pin shaft 4. The first shaft sleeve 2 is clamped and fixed with a mounting hole 51 of a rear seat 5 of the vehicle. That is, the pin 4 sequentially passes through the mounting hole 51, the second sleeve 3, the through hole 11, the first sleeve 2 and the mounting hole 51, so that the adjacent vehicle rear seats 5 are mounted in a pin connection mounting mode, the number of used bolts is reduced, the on-line bolt-installing time is saved, the mounting plate of the backrest is eliminated, the weight reduction purpose is achieved, and the light weight of the vehicle is facilitated.

Specifically, fig. 6 is a schematic structural view of a pin shaft of a turnover mechanism for a rear seat of a vehicle according to fig. 1. As shown in fig. 6, one end of the pin 4 is provided with a flange 41 for defining the position of the pin 4. The flange 41 has a cap-like structure with a diameter larger than the diameter of the pin 4 at the shaft. After the pin 4 passes through the mounting hole 51, the diameter of the flange 41 is slightly larger than that of the mounting hole 51, so that the flange 41 can define the position of the pin 4. The other end of the pin 4 is provided with a disengagement preventing portion 42 for preventing the first sleeve 2 from disengaging. The retaining portion 42 has a hemispherical structure. The shaft body of round pin axle 4 is equipped with the concave part of different diameters for round pin axle 4 can be convenient for insert in first axle sleeve 2 and the second axle sleeve 3.

Fig. 5 is a schematic view of a first bushing of a turnover mechanism for rear seats of a vehicle according to fig. 1; fig. 7 is a schematic structural view of a second bushing of a turnover mechanism for rear seats of a vehicle according to fig. 1. As shown in fig. 5 and 7, the first hub 2 has a trumpet-shaped structure. The first sleeve 2 comprises a tubular structure 21 and a flare 22. The diameter of the tubular structure 21 at the end remote from the flare 22 is smaller than the diameter of the tubular structure 21 at the end connected to the flare 22. The diameter of the retaining portion 42 is larger than the diameter of the tubular structure 21 at the end away from the flare 22 and smaller than the diameter of the tubular structure 21 at the end connected to the flare 22. The pipe wall of the end of the tubular structure 21 away from the bell mouth 22 is provided with a plurality of grooves 23 parallel to the axis of the tubular structure 21, so that when the retaining portion 42 extends into the tubular structure 21, the end of the tubular structure 21 away from the bell mouth 22 is expanded by the retaining portion 42. The tubular structure 21 is provided with a raised snap ring 24 for snap-fitting into the mounting hole 51. In a preferred embodiment, the groove 23 extends to a position between the raised snap ring 24 and the bell mouth 22, so that when the anti-falling portion 42 extends into the tubular structure 21 and one end of the tubular structure 21 away from the bell mouth 22 is expanded by the anti-falling portion 42, the diameter of the raised snap ring 24 is increased along with the expansion of the tubular structure 21, so that the raised snap ring 24 can better clamp the mounting hole 51 to prevent the pin shaft 4 from falling off. In addition, a reinforcing rib 25 is arranged at one end of the tubular structure 21 connected with the bell mouth 22. The ribs 25 are fin-shaped reinforcing structures along the diameter of the cross-section of the tubular structure 21. The one end perpendicular to tubular structure 21's of horn mouth 22 axis is kept away from to strengthening rib 25, and the distance between the one end that horn mouth 22 was kept away from to strengthening rib 25 and protruding snap ring 24 suits with mounting hole 51 for the one end that horn mouth 22 was kept away from to strengthening rib 25 is used for the joint in the both sides of mounting hole 51 with protruding snap ring 24, so that the stability and the fastness of the joint of increase vehicle back row seat. The bell mouth 22 is in contact with the intermediate hinge bracket 1 to increase the contact area of the first boss 2 with the intermediate hinge bracket 1, thereby improving the stability thereof. The second shaft sleeve 3 is of a bell mouth-shaped structure and is clamped on the through hole 11. The second sleeve 3 is further provided with a sleeve portion 32 for being matched with the through hole 11 and a limiting portion 31 for limiting the position of the second sleeve 3. A plurality of slots 33 are arranged on the sleeve portion 32 and the limiting portion 31 so as to facilitate the clamping of the second sleeve 3 on the through hole 11. Optionally, the boss portion 32 is coated with a lubricating grease, or a coating for reducing friction is prepared on the boss portion 32 so as to facilitate rotation and reduce friction force upon rotation.

Optionally, a reinforcing structure 12 is provided on the intermediate hinge bracket 1. The reinforcing structure 12 is a closed convex structure or the reinforcing structure 12 is shaped like the edge of the middle hinge bracket 1 so as to increase the structural strength of the middle hinge bracket 1 without increasing the weight and material of the middle hinge bracket 1.

Compared with the prior art, the turnover mechanism for the rear seats of the vehicle provided by the utility model cancels the connecting plate of the backrest, thereby changing the connection into pin shaft connection and achieving the purpose of weight reduction (weight reduction is about 0.723 kg); thereby eliminating two backrest mounting bolts (weight reduction is about 0.05kg), or eliminating all the mounting bolts (namely, welding the middle hinge bracket and the vehicle body, and then weight reduction is about 0.125 kg); and when the connection mode of the backrest and the hinge is changed into pin connection, the working time of bolting on the line is saved (the working time is saved by about 10 s).

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. The utility model provides a tilting mechanism for vehicle back-row seat, its characterized in that, includes middle hinge support, first axle sleeve, second axle sleeve and round pin axle, middle hinge support fixed mounting is on the automobile body, middle hinge support upper portion is equipped with the through-hole, and is adjacent vehicle back-row seat is equipped with the mounting hole respectively, and adjacent vehicle back-row seat passes through but pivot ground connection of round pin axle, first axle sleeve and second axle sleeve are established sell epaxial, first axle sleeve with vehicle back-row seat joint.

2. The turnover mechanism for a rear seat of a vehicle according to claim 1 wherein one end of the pin shaft is provided with a flange for defining the position of the pin shaft; the other end of the pin shaft is provided with an anti-falling part for preventing the first shaft sleeve from falling off.

3. The reclining mechanism for a rear seat of a vehicle according to claim 2, wherein the first bushing has a bell-shaped structure including a tubular structure and a bell mouth.

4. The turnover mechanism for the rear seats of the vehicle as claimed in claim 3, wherein the diameter of the end of the tubular structure far away from the bell mouth is smaller than the diameter of the end of the tubular structure connected with the bell mouth, and a plurality of grooves parallel to the axis of the tubular structure are formed in the pipe wall of the end of the tubular structure far away from the bell mouth, so that when the anti-falling part extends into the tubular structure, the end of the tubular structure far away from the bell mouth is propped open by the anti-falling part.

5. The turnover mechanism for the rear seats of the vehicle as claimed in claim 4, wherein the tubular structure is provided with a raised snap ring for clamping the mounting hole, and one end of the tubular structure, which is connected with the bell mouth, is provided with a reinforcing rib.

6. The reclining mechanism for a rear seat of a vehicle according to claim 5, wherein the disengagement preventing portion has a diameter larger than a diameter of the tubular structure at an end thereof remote from the bell mouth and smaller than a diameter of the tubular structure at an end thereof connected to the bell mouth.

7. The reclining mechanism for a rear seat of a vehicle according to claim 1, wherein the second bushing is engaged with the through hole.

8. The turnover mechanism for a rear seat of a vehicle according to claim 1 wherein the pin is provided with recesses of different diameters.

9. The turnover mechanism for a rear seat of a vehicle according to claim 1 wherein the intermediate hinge bracket is provided with a reinforcing structure.

10. The turnover mechanism for a rear seat of a vehicle according to claim 1 wherein the lower end of the intermediate hinge bracket is welded to the vehicle body.