Seat folding assisting and limiting mechanism

Abstract

The utility model discloses a seat folding power limiting mechanism, including synchronous link, synchronous link both ends pass through after synchronous torsional spring with axle sleeve, mounting block, synchronous flange connection, and synchronous link is connected with adjusting washer, pivot fixed support in proper order, be equipped with the limiting block on pivot fixed support. The utility model discloses when the passenger needs to seat leans down and makes the spring rotation compression, and the limiting block is limited simultaneously, and the passenger gets up and recovers the folding state automatically, and the seat can recover to the folding state automatically slowly, and the space is small.

Description

Technical Field

[0001] This utility model relates to the field of seating, and in particular to a seat folding assist limiting mechanism. Background Technology

[0002] Existing technology lacks both assistance and damping when seats return to their folded position, meaning they cannot automatically and slowly return to their folded state when passengers / crew members leave the compartment. Furthermore, the limited interior space of rail vehicle compartments would encroach on the operating space for passengers / crew members.

[0003] Therefore, it is necessary to develop new structures specifically to overcome the above problems. Summary of the Invention

[0004] Purpose of the utility model: In view of the shortcomings and defects of the existing technology, this utility model provides a seat folding assist limiting mechanism. When a passenger needs to sit down, he presses down to rotate and compress the spring, while the limiting block limits the movement. When the passenger gets up, the seat automatically returns to the folded state. The seat can automatically and slowly return to the folded state, and it occupies little space.

[0005] Technical solution: The present invention relates to a seat folding assist limiting mechanism, characterized in that: it includes a synchronizing rod, the two ends of which pass through a synchronizing torsion spring and are connected to a bushing, a mounting block, and a synchronizing flange; the synchronizing rod is sequentially connected to an adjusting shim and a rotating shaft fixing bracket; a limiting block is provided on the rotating shaft fixing bracket.

[0006] The synchronizing rod is connected to the seat frame.

[0007] The mounting block is connected to the seat frame.

[0008] The limiting block is connected to the seat frame.

[0009] The adjusting shim is a damping shim.

[0010] The rotating shaft fixing bracket is connected to the wall of the vehicle body where the seat is located.

[0011] The rotating shaft fixing bracket is connected to the vehicle body wall where the seat is located by screws.

[0012] Beneficial effects: Compared with the prior art, this utility model has the following significant advantages: the seat of this utility model can remain folded in its natural state; it has a limiting function when passengers open the seat and sit down to prevent them from falling; when passengers get up, the seat can fold slowly to avoid pinching their hands. The natural folding state saves space, and the return to the folded state is smooth. This structure is simple and has good application prospects in rail vehicle compartments and carriages. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the AA cross-sectional structure of this utility model;

[0015] Figure 3 This is a partial enlargement of point I in this utility model. Figure 1 ;

[0016] Figure 4 This is a partial enlargement of point I in this utility model. Figure 2 ;

[0017] Figure 5 This is a top view of the structure of this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of this utility model in its folded state;

[0019] Figure 7 This is a structural schematic diagram of the seat configuration of this utility model;

[0020] In the diagram, 1 is the synchronizing rod; 2 is the synchronizing flange; 3 is the bushing; 4 is the synchronizing torsion spring; 5 is the mounting block; 6 is the adjusting shim; 7 is the rotating shaft fixing bracket; and 8 is the limit block. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] This utility model discloses a seat folding assist limiting mechanism, including a synchronizing rod 1. Both ends of the synchronizing rod 1 pass through synchronizing torsion springs 4 and are connected to a bushing 3, a mounting block 5, and a synchronizing flange 2. The synchronizing rod 1 is sequentially connected to an adjusting shim 6 and a rotating shaft fixing bracket 7. A limiting block 8 is provided on the rotating shaft fixing bracket 7. The synchronizing rod 1 is connected to the seat frame. The mounting block 5 is connected to the seat frame to achieve synchronous rotation. The limiting block 8 is connected to the seat frame to achieve frame limiting. The adjusting shim 6 is a damping shim. The rotating shaft fixing bracket 7 is connected to the wall of the vehicle body where the seat is located. The rotating shaft fixing bracket 7 is connected to the wall of the vehicle body where the seat is located by screws to achieve the suspended state of the folding seat.

[0023] After the synchronous torsion spring is compressed and rotated 90°, the synchronous rod 1 is connected to the rotating shaft fixing bracket 7 and the adjusting shim 6. After resetting, the torsion spring is not under force and the seat remains folded.

[0024] As shown in the figure, the seat folding assist limiting mechanism of this utility model includes three main parts: an assist spring, a damping pad, and a seat cushion limiting block. In this mechanism, the pivot fixing bracket is fixed to the vehicle body with screws, the spring is connected to the seat synchronization rod, and the synchronization rod is connected to the seat frame, thereby realizing the synchronous movement of the spring and the seat frame. Figure 6With the seat in its naturally folded position, the springs are not under any compression. For example... Figure 7 With the seat in the unfolded position, when needed by the flight attendant / passenger, the seat is manually pressed, rotating from the folded state to the unfolded state. At this time, the spring is compressed and moves to the limit block to flatten, thus limiting the seat position. When the flight attendant / passenger gets up, to prevent the spring from quickly returning to its natural state, an adjusting shim is added to increase damping, so that the seat slowly returns to its naturally folded state.

Claims

1. A seat folding assist limiting mechanism, characterized in that: It includes a synchronizing rod (1), which passes through a synchronizing torsion spring (4) at both ends and is connected to a bushing (3), a mounting block (5), and a synchronizing flange (2). The synchronizing rod (1) is connected in sequence to an adjusting shim (6) and a rotating shaft fixing bracket (7). A limiting block (8) is provided on the rotating shaft fixing bracket (7).

2. The seat folding assist limiting mechanism according to claim 1, characterized in that: The synchronizing rod (1) is connected to the seat frame.

3. The seat folding assist limiting mechanism according to claim 1, characterized in that: The mounting block (5) is connected to the seat frame.

4. The seat folding assist limiting mechanism according to claim 1, characterized in that: The limiting block (8) is connected to the seat frame.

5. The seat folding assist limiting mechanism according to claim 1, characterized in that: The adjusting shim (6) is a damping shim.

6. The seat folding assist limiting mechanism according to claim 1, characterized in that: The rotating shaft fixing bracket (7) is connected to the wall of the vehicle body where the seat is located.

7. The seat folding assist limiting mechanism according to claim 6, characterized in that: The aforementioned pivot fixing bracket (7) is connected to the vehicle body wall where the seat is located by screws.

Images