CN103867048A

CN103867048A - Noise-reducing automobile tail door lock

Info

Publication number: CN103867048A
Application number: CN201410101696.7A
Authority: CN
Inventors: 谢长江; 顾利波; 彭寿良
Original assignee: Wuxi Xinrun Automotive Safety System Co Ltd
Current assignee: Wuxi Xinrun Automotive Safety System Co Ltd
Priority date: 2014-03-18
Filing date: 2014-03-18
Publication date: 2014-06-18
Anticipated expiration: 2034-03-18
Also published as: CN103867048B

Abstract

The invention relates to a noise-reducing automobile tail door lock, comprising a base, and a lock body and an executor which are arranged on the base, wherein the executor is connected with an opening rocking arm through an output shaft, one side of the opening rocking arm is provided with a coaxial rotatable emergency handle, the lock body is provided with a ratchet and a pawl which are mutually meshed, the base is provided with a limiting shaft connected with the emergency handle, the ratchet is fixed on the lock body and the base through a ratchet positioning shaft, the pawl is fixed on the lock body and the base through a pawl positioning shaft, a buckling buffer block and a guide block are arranged between the ratchet and the pawl and on the lock body, the collision part of the ratchet and the lock body is provided with a first returning buffer block, the collision part of the pawl and the lock body is provided with a second returning buffer block, each of the first returning buffer block and the second returning buffer block is made of a rubber material and is provided with a U-shaped through hole in the center, and each of the ratchet and the pawl is provided with a buffer area made of an elastic rubber material. The noise-reducing automobile tail door lock is reasonable in structural design, and noise generated by collision when the automobile tail door lock is used is reduced.

Description

Noise abatement automobile tail gate lock

Technical field

The present invention relates to a kind of automobile door lock, relate in particular to a kind of noise abatement automobile tail gate lock.

Background technology

Along with constantly bringing forth new ideas of Automobile Design theory, the continuous application of new technology, continuing to optimize and developing of production technology makes auto industry obtain swift and violent development, and the aspect such as performance, quality of automobile has all reached higher level.People are to the concern of automobile except the function of traditional aspect, performance, safety, and to the convenience of operation, the comfortableness of taking is also had higher requirement.Be exactly wherein the most directly to embody to the requirement of noise aspect.The generation of car noise is many-sided, with regard to automobile door lock the generation of noise relevant with its structure, be mainly entering the mutual collision of ratchet and pawl in lock and releasing process and the shock of lock body generation is caused.

Summary of the invention

The object of the invention is the large shortcoming of noise when solving in prior art that automobile tail gate is locked in switch gate, a kind of automobile tail gate lock that can noise abatement is provided.

The technical solution used in the present invention is as follows: a kind of noise abatement automobile tail gate lock, comprise base and be arranged at lock body and the actuator on base, described actuator is connected and is opened rocking arm by output shaft, one side of opening rocking arm arranges the emergent handle that coaxially can turn, on described lock body, be provided with intermeshing ratchet and pawl, on described base, be provided with limit shaft with emergent handle junction, ratchet is fixed on lock body and base by ratchet locating shaft, ratchet is fixed on lock body and base by ratchet locating shaft, between ratchet and pawl, be provided with snap close buffer stopper and guide pad, the shock place of ratchet and lock body is provided with the first reset buffering piece, the shock place of ratchet and lock body is provided with the second reset buffering piece, on described ratchet and pawl, be respectively arranged with the buffer area being formed by elastic rubber material.

Further, described snap close buffer stopper is made up of elastomeric material.

Further, described the first reset buffering piece and the second reset buffering piece are that elastomeric material and center all have U-shaped through hole.

Further, on described ratchet locating shaft, be provided with ratchet return spring, on described ratchet locating shaft, be provided with ratchet return spring.

Further, described guide pad is that elastomeric material is made.

Further, described unlatching rocking arm and emergent handle junction are provided with the first rubber sleeve.

Further, described emergent handle and limit shaft place are provided with the second rubber sleeve.

Further, be respectively arranged with the first buffer area, the second buffer area and the 3rd buffer area on described ratchet, the shock place of described pawl-and-gearing is provided with the 4th buffer area.

The present invention arranges respectively buffer area at pawl-and-gearing and with the shock place of lock body and has the reset buffering piece of U-shaped through hole, in the middle of opening rocking arm and emergent handle place, emergent handle and limit shaft, in conjunction with place, rubber sleeve is set respectively, simplify guide frame, the guide pad that rubber is made is set, automobile tail gate lock is in use weakened and clash into the noise producing, improved the quality of car load.

brief description of the drawings

Fig. 1 is structural representation of the present invention.

Fig. 2 is rear elevation of the present invention.

Fig. 3 is the structural representation of lock body of the present invention.

Fig. 4 is the structural representation of the first reset buffering piece of the present invention.

Reference numeral: base 1, ratchet 2, ratchet locating shaft 3, ratchet return spring 4, snap close buffer stopper 5, guide pad 6, ratchet locating shaft 7, ratchet return spring 8, ratchet 9, the first rubber sleeve 10, unlatching rocking arm 11, emergent handle 12, actuator 13, limit shaft 14, the second rubber sleeve 15, lock body 16, the first reset buffering piece 17, the second reset buffering piece 18, the first buffer area 19, the second buffer area 20, the 3rd buffer area 21, the 4th buffer area 22.

Detailed description of the invention

Below in conjunction with accompanying drawing, the invention will be further described.

As Figure 1-Figure 4, a kind of noise abatement automobile tail gate lock, comprise base 1 and be arranged at lock body 16 and the actuator 13 on base, described actuator 13 is connected and is opened rocking arm 11 by output shaft, one side of opening rocking arm 11 arranges the emergent handle 12 that coaxially can turn, on described lock body 16, be provided with intermeshing ratchet 2 and ratchet 9, on described base 1, be connected with limit shaft 14 with emergent handle 12, described limit shaft 14 mainly plays when the position-limiting action to unlatching rocking arm 11 and emergent handle 12; Ratchet 2 is fixed on lock body 16 and base 1 by ratchet locating shaft 3, ratchet 9 is fixed on lock body 16 and base 1 by ratchet locating shaft 7, on ratchet locating shaft 3, be provided with ratchet return spring 4, on described ratchet locating shaft 7, be provided with ratchet return spring 8, between ratchet 2 and ratchet 9, on lock body, be provided with snap close buffer stopper 5 and guide pad 6, snap close buffer stopper 5 and guide pad 6 are made by elastomeric material; The setting of snap close buffer stopper 5 is in order to reduce the shock of snap close to ratchet 2 and lock body assembly; The shock place that the shock place of ratchet 2 and lock body 16 is provided with the first reset buffering piece 17, ratchet 9 and lock body 16 is provided with the second reset buffering piece 18, the first reset buffering pieces 17 and the second reset buffering piece 18 and all has U-shaped through hole for elastomeric material and center; On ratchet 2, be respectively arranged with the first buffer area 19, the second buffer area 20 and the 3rd buffer area 21 of being made by elastic rubber material, can reduce the noise that snap close produces the shock of ratchet 2, on described the ratchet 9 and shock place of ratchet 2 is provided with the 4th buffer area 22 of being made up of elastic rubber material, opens rocking arm 11 and emergent handle 12 junctions and is provided with the first rubber sleeve 10; Emergent handle 12 and limit shaft place 14 are provided with the second rubber sleeve 15, avoid the collision of metal and metal, reach noise reduction effect.The hollow area that described the first buffer area 19, the second buffer area 20, the 3rd buffer area 21 and the 4th buffer area 22 are set by encapsulate layer, plays cushioning effect.

The first reset buffering piece 17 in the present invention and the second reset buffering Kuai18 center have U-shaped through hole, in the knockout process of ratchet 2 or ratchet 9 and lock body 16, reset buffering piece can be divided into two parts in whole deformation process: the first, and the elastic deformation of rubber bodies material itself; The second, the distortion of buffer stopper entirety, under clashing into extruded rubber bodies to the distortion of shrinking in U-shaped through hole.The stacks of two part distortion, have increased the deflection of reset buffering piece greatly, have slackened the energy clashing into and the vibration causing, and then have reached the object of noise abatement.

The operating principle of noise abatement automobile tail gate lock of the present invention is: enter lock process: snap close promotes ratchet 2 and advances in lock, lock body and guide pad 6 make snap close advance according to correct path, and compress snap close buffer stopper 5 and enter locked position of coupler, now ratchet 2 and ratchet 9 are engagement.

Releasing process: actuator 13 pulls opens rocking arm 11, unlatching rocking arm 11 drives ratchet 9 to rotate with ratchet 2 and separates, ratchet 2 is got back to initial position under the effect of ratchet return spring 4, compress the first reset buffering piece 17, snap close exits lock body, reach release object, now ratchet 9 is got back to initial position and is compressed the second reset buffering piece 18 under the effect of ratchet return spring 8; Releasing process can also directly use emergent handle 12, and emergent handle 12 drives coaxial unlatching rocking arm 11, and step is the same, completes releasing process.

Claims

1. a noise abatement automobile tail gate lock, comprise base (1) and be arranged at lock body (16) and the actuator (13) on base, described actuator (13) is connected and is opened rocking arm (11) by output shaft, one side of opening rocking arm (11) arranges the emergent handle (12) that coaxially can turn, on described lock body (16), be provided with intermeshing ratchet (2) and ratchet (9), it is characterized in that: described base (1) is upper is provided with limit shaft (14) with emergent handle (12) junction, ratchet (2) is fixed on lock body and base by ratchet locating shaft (3), ratchet (9) is fixed on lock body and base by ratchet locating shaft (7), between ratchet (2) and ratchet (9), on lock body, be provided with snap close buffer stopper (5) and guide pad (6), the shock place of ratchet (2) and lock body is provided with the first reset buffering piece (17), the shock place of ratchet (9) and lock body is provided with the second reset buffering piece (18).

2. noise abatement automobile tail gate lock as claimed in claim 1, is characterized in that: described snap close buffer stopper (5) is made up of elastomeric material.

3. noise abatement automobile tail gate lock as claimed in claim 1, is characterized in that: described the first reset buffering piece (17) and the second reset buffering piece (18) all have U-shaped through hole for elastomeric material and center.

4. noise abatement automobile tail gate lock as claimed in claim 1, is characterized in that: on described ratchet locating shaft (3), be provided with ratchet return spring (4), be provided with ratchet return spring (8) on described ratchet locating shaft (7).

5. noise abatement automobile tail gate lock as claimed in claim 1, is characterized in that: described guide pad (6) is made for elastomeric material.

6. noise abatement automobile tail gate lock as claimed in claim 1, is characterized in that: described unlatching rocking arm (11) and emergent handle (12) junction are provided with the first rubber sleeve (10).

7. noise abatement automobile tail gate lock as claimed in claim 1, is characterized in that: described emergent handle (12) and limit shaft (14) locate to be provided with the second rubber sleeve (15).

8. noise abatement automobile tail gate lock as claimed in claim 1, it is characterized in that: on described ratchet (2), be respectively arranged with the first buffer area (19), the second buffer area (20) and the 3rd buffer area (21), on described ratchet (9) and ratchet (2) shock place is provided with the 4th buffer area (22).