CN104015639B - Regulating system used for cooperatively regulating collision safety of seat cushion and backrest - Google Patents

Abstract

An adjustment system for cooperatively adjusting the collision safety of a seat cushion and a backrest, comprising a supporting mechanism, a starting mechanism, a limit locking mechanism, a bottom plate and a seat cushion, one end of the seat cushion is hinged to one end of the bottom plate through a bearing, and the seat cushion The other end of the cushion is connected with the other end of the base plate through a supporting mechanism, and the middle part of the cushion is connected with the base plate through a starting mechanism and a limit locking mechanism respectively. The invention has the advantages of compact structure, low manufacturing cost, good stability, and can eliminate the gap and vibration between the seat and the support platform when the car is running normally, so as to realize flexible contact; Concentric, under the condition of frontal collision, there will be no interference between the locking lever and the bottom plate hole of the seat cushion when the seat cushion is rotated; there is a limit locking lever, which can realize the limit and adjustment of the angle of the seat cushion under the condition of frontal collision Locking, at the same time, the auxiliary torsion spring plays the role of auxiliary seat cushion bounce.

Description

An adjustment system for cooperatively adjusting seat cushion and backrest collision safety

technical field

The invention belongs to the field of automobile safety, and in particular relates to an adjustment system for cooperatively adjusting the collision safety of a seat cushion and a backrest.

Background technique

The car seat and the cushion have a certain angle, which is based on the optimal design of the ride comfort, and the backrest angle of the car seat can also be adjusted manually. Simulation and experiments prove that when the car is in a frontal collision, there is an optimal combination of cushion angle and backrest angle to minimize the comprehensive damage suffered by the occupant in the frontal collision, which is different from the optimal comfort angle of cushion angle and backrest angle.

Chinese patent 200510122902.3 discloses that there is a certain cushion angle adjustment function, but it mainly depends on the friction between the human body's buttocks and the cushion, which is greatly affected by the sitting posture and body weight; and when the cushion angle increases, the cushion will also move forward. The effect of these working conditions on damage has not been verified.

Chinese patent 201010569829.5 discloses an electromagnetic driving mechanism for seat cushion angle adjustment. Since the electromagnet acts in a small range and the force is limited, it is difficult to realize.

Chinese patent 201010569912.2 discloses a pneumatic driving mechanism for seat cushion angle adjustment, which not only requires an additional pneumatic device, but also has a certain hysteresis in the pneumatic, and the response time is relatively long.

Moreover, the Chinese patents disclosed above are all devices for adjusting the angle of the cushion during a collision, and there is no adjustment system for coordinating the angle of the seat cushion and the angle of the backrest so far. Therefore, there is a need for an easy-to-use, timely-response device to coordinately adjust the seat cushion angle and the backrest angle.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art, and provide a frontal collision-based, simple and responsive adjustment system for cooperatively adjusting the safety of seat cushion and backrest collision.

The technical solution adopted by the present invention to solve the technical problem is an adjustment system for cooperatively adjusting the seat cushion and the backrest collision safety seat, including a supporting mechanism, a starting mechanism, a limit locking mechanism, a bottom plate and a seat cushion, and the seat cushion One end of the cushion is hinged with one end of the base plate through a bearing, the other end of the cushion is connected with the other end of the base plate through a supporting mechanism, and the middle part of the cushion is connected with the base plate through a starting mechanism and a limit locking mechanism respectively.

Further, the support mechanism includes a rubber block, a support platform, a locking lever and a trigger mechanism, the bottom end of the support platform is fixedly connected to the bottom plate, the rubber block is arranged on the top of the support platform, and glued to the bottom of the seat cushion, The bottom plate is provided with a locking hole and a trigger mechanism that are compatible with the locking groove of the locking rod. The locking hole on the mating connection.

Further, the locking rod is an arc-shaped locking rod, and the arc surface of the arc-shaped locking rod is centered on the center axis of rotation of the seat cushion.

Further, the trigger mechanism is an electromagnetic trigger switch.

Further, the starting mechanism includes an outer starting spring, an inner starting spring, an outer starting spring barrel and an inner starting spring barrel, one end of the outer starting spring is connected with the moving pair of the inner starting spring barrel, and the other end is hinged with the bottom of the seat cushion, and There is a flange; the inner starting spring is set in the inner starting spring barrel, one end is affixed to the inside of the outer starting spring barrel, and the other end is fixed to the end of the inner starting spring barrel; the outer starting spring is set in the outer starting spring inside the barrel.

Further, the limit lock mechanism includes a limit lock lever slideway, a limit lock lever and an auxiliary torsion spring, the limit lock lever slideway is affixed to the side edge of the bottom of the seat cushion, and the limit lock One end of the stop rod is connected with the moving rotation pair of the slideway of the limit lock rod, the other end of the limit lock rod is fixedly connected with the bottom plate, and the auxiliary torsion spring is arranged at the joint between the limit lock rod and the bottom plate, and the limit lock rod A first auxiliary torsion spring leg card is provided on the locking lever, and a second auxiliary torsion spring leg card is provided on the bottom plate, and the two legs of the auxiliary torsion spring are respectively clamped by the first auxiliary torsion spring leg card and the second auxiliary torsion spring leg card. The two auxiliary torsion spring feet are stuck.

Compared with the prior art, the present invention has compact structure and low manufacturing cost; good stability, rubber blocks are glued on the support platform, and the gap and vibration between the seat and the support platform can be eliminated when the car is running normally, realizing Flexible contact; the inner and outer curved surfaces of the front and back of the locking rod are concentric with the center of rotation of the seat cushion, which can meet the requirement that there will be no interference between the locking rod and the bottom plate hole of the seat cushion under the condition of frontal collision; there is a limit locking rod , It can realize the limit and lock of the angle adjustment of the seat cushion during the frontal collision condition, and at the same time, the auxiliary torsion spring plays the role of assisting the spring of the seat cushion.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the present invention;

Fig. 2 is a schematic diagram of the side structure shown in Fig. 1;

Fig. 3 is a structural schematic diagram of the support mechanism shown in Fig. 1;

Fig. 4 is a structural schematic diagram of the locking lever shown in Fig. 1;

Fig. 5 is a structural schematic diagram of the starting mechanism shown in Fig. 1;

Figure 6a is a schematic structural view of the limit locking mechanism before it works;

Fig. 6b is a structural schematic diagram of the limit locking mechanism when it is working.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

With reference to Fig. 1 and Fig. 2, present embodiment comprises support mechanism 1, starting mechanism 2, limit locking mechanism 3, base plate 4 and cushion 5, one end of cushion 5 and one end of base plate 4 are hinged by bearing 6, the other end of cushion 5 One end is connected with the other end of the bottom 4 plate through the supporting mechanism 1, and the middle part of the seat cushion 5 is connected with the bottom plate 4 through the starting mechanism 2 and the limit locking mechanism 3 respectively.

Referring to Figure 3, the support mechanism 1 includes a rubber block 1-1, a support platform 1-2, a locking lever 1-3 and a trigger mechanism 1-4, the bottom end of the support platform 1-2 is fixedly connected to the bottom plate 4, and the rubber block 1 -1 is located on the top of the support platform 1-2, and is glued to the bottom of the seat cushion 5, which can eliminate the gap and vibration between the seat and the support platform 1-2; the bottom plate 4 is provided with the locking rod 1-3 The locking hole 1-6 and the trigger mechanism 1-4 are matched with the locking groove 1-5, the top of the locking rod 1-3 is fixedly connected with the bottom of the seat cushion 5, and the locking rod 1-3 passes through the locking groove 1-5 is mated with the locking hole 1-6 on the bottom plate 4.

Referring to Fig. 4, the locking lever 1-3 is an arc-shaped locking lever, and the arc surface of the arc-shaped locking lever 1-3 is centered on the center axis of the seat cushion rotation; when the seat cushion 5 rotates, the arc-shaped locking lever 1 -3 rotates without interfering with the seat cushion locking hole 1-6; the trigger mechanism 1-4 can satisfy.

The trigger mechanism 1-4 is an electromagnetic trigger switch. Under normal circumstances, the extension rod of the electromagnetic trigger switch 1-4 is stuck in the locking groove 1-5 of the arc-shaped locking rod 1-3, and the seat cushion 5 cannot bounce up; In a frontal collision, the electromagnetic trigger switch is energized, and the extension rod is withdrawn, and the arc-shaped locking rod 1-3 is relaxed, and bounces up under the action of the spring force.

With reference to Fig. 5, starting mechanism 2 comprises outer starting spring 2-1, inner starting spring 2-2, outer starting spring barrel 2-3 and inner starting spring barrel 2-4, and one end of outer starting spring barrel 2-3 is connected with inner starting spring barrel 2-2. The spring cylinder 2-4 is connected to the mobile pair, and the other end is hinged with the bottom of the seat cushion 5; the inner starting spring 2-2 is arranged on the inner starting spring cylinder 2-4, and one end is fixed inside the outer starting spring cylinder 2-3, and the other end It is affixed to the end of the inner starting spring barrel 2-4; the outer starting spring 2-1 is arranged on the outer starting spring barrel 2-3. During normal working conditions, the inner starting spring and the outer starting spring are all in a compressed state. When a frontal collision occurs and the device is started, the seat cushion will be bounced up by relative sliding and elongation between the elastic spring tubes.

Referring to Fig. 6a and Fig. 6b, the limit locking mechanism 3 includes a limit locking lever slideway 3-1, a limit locking lever 3-2 and an auxiliary torsion spring 3-3, and the limit locking lever slideway 3- 1 is fixedly connected with the bottom of the seat cushion 5, one end of the limit lock rod 3-2 is connected with the moving rotation pair of the limit lock rod slideway 3-1, and the other end of the limit lock rod 3-2 is fixedly connected with the bottom plate 4, Auxiliary torsion spring 3-3 is located at the affixed place of limit lock lever 3-2 and base plate 4, and limit lock lever 3-2 is provided with the first auxiliary torsion spring leg card 3-4, and base plate 4 There is a second auxiliary torsion spring leg card 3-5, and the two legs of the auxiliary torsion spring 3-3 are respectively blocked by the first auxiliary torsion spring leg card 3-4 and the second auxiliary torsion spring leg card 3-5 . The limit lock rod slideway 15 is fixedly connected to the side edge of the lower part of the cushion, and the cushion angle is the optimal angle when the limit lock rod 3-2 slides to its rearmost end, realizing the limit function, and the limit lock rod 3 The locking angle r formed between -2 and the seat cushion 5 is slightly less than 90 degrees, and the locking function is realized under the downward pressure of the human body; when the car is running normally, the auxiliary torsion spring 3-3 is in a torsion state; When a frontal collision occurs and the device starts, the restoring force of the auxiliary torsion spring 3-3 provides auxiliary power for the limit locking lever 3-2.

Under normal working conditions, the trigger mechanism 1-4 is locked through the locking lever 1-3 and the locking groove 1-5 to ensure that the seat cushion 5 will not bounce up. When the car collides, the trigger mechanism 1-4 releases the locking groove 1 -5, the cushion 5 bounces up under the effect of the auxiliary torsion spring 3-3.

During work, two sets of adjustment systems of this embodiment are symmetrically assembled on the seat; under normal driving conditions of the car, the device is locked by the locking lever 1-3, and the seat cushion 5 is supported on the cushion support platform 1-2 above, does not affect the comfort and stability of the seat; when a frontal collision occurs, the trigger device 1-4 releases the locking lever 1-3 after receiving the command from the control system, the system is triggered, and the seat cushion 5 is activated by the activation device. Under the elastic force of double springs and auxiliary torsion spring 3-3, the seat cushion 5 is bounced up to a certain angle in a very short time. The device is driven by the seat cushion to adjust the angle to achieve the synergy of angle adjustment, but the angle at which the seat cushion bounces up is not equal to the angle at which the backrest is adjusted. When the seat cushion angle adjustment reaches a certain angle, the limit lock lever 3-2 is limited and locked in the limit lock lever slideway 3-1, the cushion does not continue to bounce, nor will it be moved due to the weight of the human body. The seat cushion 5 is restored; the angle of the backrest is also adjusted to a certain angle. At this time, the angle of the seat cushion 5 and the adjusted backrest angle are the optimal combination of seat cushion and backrest angle.

Claims (5)

1. the regulation system for synergic adjustment Chain cushion with backrest collision safety, it is characterised in that Including supporting mechanism, actuating mechanism, limiting lock locking mechanism, base plate and medicated cushion, one end of described medicated cushion and the end Bearing hinge connection is passed through in one end of plate, and the other end of described medicated cushion is connected by supporting mechanism with the other end of base plate, The middle part of described medicated cushion is connected with base plate by actuating mechanism and limiting lock locking mechanism respectively, described supporting mechanism Including block rubber, supporting platform, locking rod and trigger mechanism, the bottom of described support platform is affixed with base plate, institute Stating block rubber and be located at the top supporting platform, glued joint with the bottom of medicated cushion, described base plate is provided with and locking rod Locking hole that lock groove is suitable and trigger mechanism, the top of described locking rod is affixed with the bottom of medicated cushion, institute State locking rod to be connected with the locking hole on base plate by lock groove.

Regulation system for synergic adjustment Chain cushion Yu backrest collision safety the most according to claim 1 System, it is characterised in that described locking rod is arc locking rod, and the cambered surface of described arc locking rod turns with medicated cushion Disorder of internal organs mandrel is that axis rotates.

Tune for synergic adjustment Chain cushion Yu backrest collision safety the most according to claim 1 and 2 Joint system, it is characterised in that described trigger mechanism is electromagnetic trigger switch.

Tune for synergic adjustment Chain cushion Yu backrest collision safety the most according to claim 1 and 2 Joint system, it is characterised in that described actuating mechanism include outer starting spring, interior starting spring, outer starting spring cylinder and Interior starting spring cylinder, one end of described outer starting spring cylinder is connected with interior starting spring cylinder moving sets, the other end and medicated cushion Bottom hinged；Described interior starting spring is located on interior starting spring cylinder, and one end is internal with outer starting spring cylinder affixed, The other end is affixed with interior starting spring cylinder end；Described outer starting spring is located on outer starting spring cylinder.

Tune for synergic adjustment Chain cushion Yu backrest collision safety the most according to claim 1 and 2 Joint system, it is characterised in that described limiting lock locking mechanism include limiting lock stopping bar slideway, limiting lock stopping bar and Auxiliary torsion spring, described limiting lock stopping bar slideway is affixed with medicated cushion bottom side edges, described limiting lock stopping bar one end Rotate secondary connection with limiting lock stopping bar slideway, the other end of limiting lock stopping bar is affixed with base plate, and auxiliary is turned round The fixing position of limiting lock stopping bar and base plate is located at by spring, and described limiting lock stopping bar is provided with first auxiliary torsion spring and props up Foot card, described base plate be provided with second auxiliary torsion spring leg card, two legs of described auxiliary torsion spring respectively by First auxiliary torsion spring leg card and second auxiliary torsion spring leg card block.