CN103085696B - Suspension handle type stiffness equivalent mechanism - Google Patents

Abstract

The invention discloses a kind of suspension handle type stiffness equivalent mechanism, be made up of suspension system and stiffness equivalent device, described stiffness equivalent device is by handle type machine two-way rot, locking tooth is fanned, gangbar and stroke lever composition, handle type machine two-way rot is fixed on the sidewall of framework, handle type machine two-way rot has limited post and mechanical double-way clutch module, the fulcrum of locking tooth fan is hinged on the sidewall of framework, locking tooth fan resistance arm on resistance point and gangbar hinged, the limited post of handle type machine two-way rot is arranged in the position-limited trough that locking tooth agitates the arm of force, the other end of gangbar and one end of stroke lever hinged, the other end of stroke lever is set on synchronous axial system bar, mechanical double-way clutch module is fanned with locking tooth and is engaged linkage, the present invention has two lever force-reducing mechanisms, provides necessary condition for height regulating mechanism in mechanical suspension seat and mechanical suspension mechanism become one, expand the setting range to suspension spring.

Description

Suspension handle type stiffness adjustment mechanism

technical field

The invention relates to a vehicle seat, in particular to a suspension handle type stiffness adjustment mechanism of the vehicle seat.

Background technique

The existing rigidity adjustment mechanism of a vehicle seat is relatively complex in structure, and at the same time takes up a lot of layout space, resulting in insufficient layout space for the spring. Only the lever mechanism is used in the force reducing part, which has the disadvantages of too many adjustment turns and too large adjustment force.

Contents of the invention

The purpose of the present invention is to provide a suspension handle type stiffness adjustment mechanism. The present invention is to solve the problem that the structure of the existing stiffness adjustment mechanism is relatively complex, occupying layout space, resulting in insufficient layout space for springs, and its force reducing part adopts The lever mechanism has disadvantages such as too many adjustment circles and excessive adjustment force.

The present invention is composed of a suspension system and a stiffness adjustment device. The suspension system is composed of a suspension spring, a spring hanger, a spring suspension rocker, a synchronous rotation rod and a booster spring. One ends of the two suspension springs are respectively hooked on the spring hanger. The two ends of the spring pendant are hinged on the upper end of the spring suspension rocker arm, one end of the booster spring is hooked on the lower end of the spring suspension rocker arm, the two ends of the synchronous rotating rod are pivotally connected to the frame, and the inner side of the spring suspension rocker arm The middle part is fixed together with the synchronous rotating rod. The rigidity adjustment device is composed of a handle-type mechanical two-way rotator, a locking gear fan, a linkage rod and a stroke lever. The handle-type mechanical two-way rotator is fixed on the side wall of the frame , the handle-type mechanical two-way rotator has a limit column and a mechanical two-way clutch module, the fulcrum of the locking tooth fan is hinged on the side wall of the frame, the head end of the locking tooth fan power arm has a limit groove, and the resistance of the locking tooth fan The resistance point on the arm is hinged with the linkage rod, the limit column of the handle type mechanical two-way rotator is located in the limit groove of the power arm of the locking gear fan, the other end of the linkage rod is hinged with one end of the travel lever, and the other end of the travel lever It is sleeved on the input end of the synchronous rotation lever; the mechanical bidirectional clutch module engages and interlocks with the locking gear sector.

The handle-type mechanical bidirectional rotator has an operating handle.

Beneficial effects of the present invention:

1. The present invention has two lever force reduction mechanisms, that is, a lever force reduction mechanism composed of a mechanical two-way clutch module and a locking tooth fan, and another lever force reduction mechanism composed of a linkage rod and a stroke lever, which is a mechanical suspension seat. The integration of the height adjustment mechanism and the mechanical suspension mechanism provides the necessary conditions.

2. The adjustment mechanism and the force reduction mechanism are independent, so that the adjustment range of the suspension spring can reach more than three times that of similar products.

3. At the operating end of the handle-type mechanical two-way rotator, the handle is used to operate, which increases the operating arm and improves the operating comfort.

Description of drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

FIG. 2 is a schematic perspective view of the back side of the embodiment of the present invention.

Fig. 3 is a three-dimensional exploded schematic diagram of an embodiment of the present invention.

Detailed ways

Please refer to Fig. 1, Fig. 2 and shown in Fig. 3, present embodiment is made of suspension system 1 and stiffness adjusting device 2, and described suspension system 1 is composed of suspension spring 11, spring pendant 12, spring suspension rocker 13, The synchronous rotating rod 14 and the booster spring 15 constitute, and one end of two suspension springs 11 is respectively hooked on the two ends of the spring hanger 12, and the middle part of the spring hanger 12 is hinged on the upper end of the spring suspension rocker arm 13, and one end of the booster spring 15 is hooked Hanging on the lower end of the spring suspension rocker arm 13, the two ends of the synchronous rotation bar 14 are pivotally connected on the frame A, the inner middle part of the spring suspension rocker arm 13 is fixed together with the synchronous rotation bar 14, and the stiffness adjustment device 2 is It consists of a handle-type mechanical two-way rotator 21, a locking gear fan 22, a linkage rod 23 and a stroke lever 24. The handle-type mechanical two-way rotator 21 is fixed on the side wall of the frame A, and the handle-type mechanical two-way rotator 21 has a limit position The column 211 and the mechanical two-way clutch module 213, the fulcrum 221 of the locking tooth fan 22 is hinged on the side wall of the frame A, the head end of the power arm of the locking tooth fan 22 has a limit groove 222, and the resistance arm of the locking tooth fan 22 The upper resistance point 223 is hinged with the linkage rod 23, the limit column 211 of the handle type mechanical two-way rotator 21 is located in the limit groove 222 of the power arm of the locking tooth fan 22, the other end of the linkage rod 23 is connected with the end of the travel lever 24 Hinged, the other end of the stroke lever 24 is sheathed on the input end 141 of the synchronous rotation rod 14; the mechanical bidirectional clutch module 213 is engaged and linked with the locking gear fan 22 .

The handle-type mechanical bidirectional rotator 21 has an operating handle 212 .

The working principle of the present invention is:

1. Turn the handle type mechanical bidirectional rotator 21, the mechanical bidirectional clutch module 213 of the handle type mechanical bidirectional rotator 21 drives the power arm of the locking gear fan 22 to move up or down, and the resistance arm of the locking gear fan 22 drives the linkage lever 23 to move forward or backward, the stroke lever 24 drives the synchronous rotating rod 14 to rotate clockwise or counterclockwise, and the clockwise or counterclockwise rotation of the synchronous rotating rod 14 adjusts the length of the suspension spring 11, and then adjusts the stiffness of the suspension system 1 to become smaller or larger. big.

2. The handle-type mechanical two-way rotator 21 has an operating handle 212, which is labor-saving to operate, and can be stopped and self-locked at any time.

Claims (1)

1. a suspension handle type stiffness equivalent mechanism, be made up of suspension system (1) and stiffness equivalent device (2), described suspension system (1) is by suspension spring (11), spring pendant (12), spring hangs rocking arm (13), synchronous axial system bar (14) and power assistant spring (15) are formed, one end of two suspension springs (11) is hooked on the two ends of spring pendant (12) respectively, the middle part of spring pendant (12) is hinged on the upper end that spring hangs rocking arm (13), one end of power assistant spring (15) is hooked on the lower end that spring hangs rocking arm (13), the two ends of synchronous axial system bar (14) are articulated on framework (A), middle part, inner side and the synchronous axial system bar (14) of spring suspension rocking arm (13) are fixed together, it is characterized in that: described stiffness equivalent device (2) is by handle type machine two-way rot (21), locking tooth fan (22), gangbar (23) and stroke lever (24) composition, handle type machine two-way rot (21) is fixed on the sidewall of framework (A), handle type machine two-way rot (21) has limited post (211) and mechanical double-way clutch module (213), the fulcrum (221) of locking tooth fan (22) is hinged on the sidewall of framework (A), locking tooth fan (22) power arm head end has position-limited trough (222), resistance point (223) on the resistance arm of locking tooth fan (22) is hinged with gangbar (23), the limited post (211) of handle type machine two-way rot (21) is arranged in the position-limited trough (222) of locking tooth fan (22) power arm, the other end of gangbar (23) and one end of stroke lever (24) hinged, the other end of stroke lever (24) is set on the input end (141) of synchronous axial system bar (14), mechanical double-way clutch module (213) is fanned (22) and is engaged linkage with locking tooth.