CN209441436U - A kind of limiting device for steering column regulation handle - Google Patents

Abstract

A kind of limiting device for steering column regulation handle, including the fixation cam at the side face of clamp system is arranged in, translating cam and regulation handle, socket is provided with a limiting device on fixed cam, the shape of retainer plate made of the rubber of limiting device is consistent with the fixed lateral profile of cam, the internal diameter of the retainer plate is less than the outer diameter of fixed cam, retainer plate is socketed on fixed cam in interference-fit type, circumferentially equal fractions are distributed on retainer plate retention bead, the quantity of retention bead is consistent with the fixed fixation cam limit face quantity of cam, and retention bead is placed in the front in each fixed cam limit face and fixed cam limit face is completely covered, i.e., the height of retention bead and fixed cam limit face, equivalent width, retention bead by the translating cam confined planes of fixed cam limit face and translating cam every From when regulation handle is quickly opened, the translating cam confined planes of translating cam are impinged upon in retention bead, are buffered by the retention bead.

Description

A kind of limiting device for steering column regulation handle

Technical field

The utility model relates to device positioning field more particularly to a kind of steering column peaces applied to automobile steering system The limiting device of the regulation handle used when dress.

Background technique

Currently, the upper column tube of automobile steering system is fixed on vehicle position by upper mounting bracket, above connect steering wheel, under connect Jackshaft is the important component in automobile steering system.In order to meet the needs of client, steering system not only has transmitting The function of torque, collision energy-absorbing, is also equipped with regulatory function.In order to install steering column using clamp system, the clamp system In equipped with regulation handle adjust steering column, by the rotation of the regulation handle, realize the clamping and release of steering column.

Clamp system under the prior art is by regulation handle, translating cam, fixed cam, bracket, column tube bracket and bolt Deng composition, when locking, in handle end applied force, regulation handle is driven to drive translating cam rotation, due to translating cam and solid The face for determining cam engagement is lifting curve, and translating cam is caused to be moved to the left while rotating, so that bracket generates change Shape, with column tube cradle fits.With being continuously increased for handle end power, bracket to the column tube bracket amount of being deformed is also corresponding increases Add, until translating cam confined planes can be maximized with fixed cam limit interplanar distance, the process for so far clamping, and unclamping completely, On the contrary, the power being applied on bracket and column tube bracket discharges, bracket and column tube are rapid for relative motion and locking process between each part Restore free state.

Fed back by field worker, when release process, translating cam confined planes can with fixed cam limit face fast ram, Metal strike sound is issued, different handle arrangements and handle dechucking forces, strike note would also vary from, if handle rotary inertia Small, translating cam is also smaller to the impact force of fixed cam when release handle, and strike note is weaker, if handle rotary inertia Greatly, strike note is more obvious, serious to be also possible to the phenomenon that falling after rise again after causing handle to be bounced, and generates secondary impact sound, existing Field noise is very big.

Utility model content

To solve the above-mentioned problems, the utility model provides a kind of limiting device for steering column regulation handle, By having installed the limiting device additional, so that the big handle mechanism of inertia significantly reduces the strike note of handle release, and can drop Low handle rebound.

A kind of limiting device for steering column regulation handle of the utility model, specific structure are as described below:

A kind of limiting device for steering column regulation handle, including consolidating at the side face of clamp system is arranged in Determine cam, translating cam and regulation handle, it is characterised in that:

Socket is provided with a limiting device on the fixation cam, and the fixation which covers fixed cam is convex Confined planes are taken turns, when regulation handle is quickly opened, the translating cam confined planes of translating cam are impinged upon on limiting device.

Herein designed for the limiting device of rubber system absorbs energy by its flexible deformation, buffering collision of closed Fixed cam limit face is avoided simultaneously mutually to hit with translating cam confined planes, that is, the making contact of metal and metal is avoided, It can be effectively reduced handle rebound, while can also play the effect for inhibiting noise.

A kind of limiting device for steering column regulation handle according to the present utility model, which is characterized in that described Limiting device includes retainer plate made of rubber and retention bead, wherein the outboard wheel of the shape of retainer plate and fixed cam Wide consistent, the internal diameter of the retainer plate is less than the outer diameter of fixed cam, and retainer plate is socketed on fixed cam in interference-fit type, Circumferentially equal fractions are distributed on retainer plate retention bead, the fixation cam limit face of the quantity of retention bead and fixed cam Quantity is consistent, and retention bead is placed in the front in each fixed cam limit face and fixed cam limit face is completely covered, that is, Height, the equivalent width of retention bead and fixed cam limit face, retention bead is by fixed cam limit face and translating cam The isolation of translating cam confined planes, when regulation handle is quickly opened, the translating cam confined planes of translating cam impinge upon limit convex On rising, buffered by the retention bead.

Herein designed for fixed loop-shaped is substantially consistent with fixed cam lateral profile, and interference fit packet is convex On wheel, prevent from relatively rotating or falling off with cam, and the fixation cam limit face for fixing cam is usually at 4, that is, limit The quantity of protrusion is similarly 4, in 90 ° of circle distributions on retainer plate.In handle in quick open, translating cam limit Face impinges upon in retention bead, absorbs energy using the flexible deformation of rubber material, plays buffer function, avoids metal and gold The making contact of category can be effectively reduced handle rebound, while can also play the effect for inhibiting noise.

Using a kind of limiting device for steering column regulation handle of the utility model obtain it is following the utility model has the advantages that

1. a kind of limiting device for steering column regulation handle of the utility model, structure is simple, easy to assembly；

2. a kind of limiting device for steering column regulation handle of the utility model is become using the elasticity of rubber material Shape absorbs energy, and in handle in quick open, translating cam confined planes are impinged upon on limiting device, plays buffer function, The making contact of metal and metal is avoided, handle rebound can be effectively reduced, while can also play the effect for inhibiting noise.

Detailed description of the invention

Fig. 1 is the concrete structure schematic diagram of the clamp system under the prior art；

Fig. 2 is a kind of concrete structure schematic diagram of limiting device for steering column regulation handle of the utility model；

Fig. 3 is that a kind of limiting device for steering column regulation handle of the utility model is assemblied on fixed cam Schematic diagram；

Fig. 4 is a kind of implementation result figure of limiting device for steering column regulation handle of the utility model.

In figure: 1- clamp system, 2- bracket, the fixed cam of 3-, the fixed cam limit face 3a-, 4- translating cam, 4a- are moved Moving cam confined planes, 5- regulation handle, A- limiting device, A1- retainer plate, A2- retention bead.

Specific embodiment

With reference to the accompanying drawings and examples to a kind of limiting device for steering column regulation handle of the utility model It is further described.

Embodiment

As shown in Figure 2 to 4, a kind of limiting device for steering column regulation handle, including be arranged in clamp system 1 2 lateral position of bracket fixation cam 3, translating cam 4 and regulation handle 5, socket being provided with a limiting device on fixed cam A, the limiting device cover the fixation cam limit face 3a of fixed cam, when regulation handle 5 is quickly opened, translating cam 4 Translating cam confined planes 4a impinge upon on limiting device.

The limiting device of rubber system absorbs energy by its flexible deformation, and buffering collision of closed while avoids fixed cam Confined planes are mutually hit with translating cam confined planes, that is, are avoided the making contact of metal and metal, can be effectively reduced handle Rebound, while can also play the effect for inhibiting noise.

Limiting device A includes retainer plate A1 and retention bead A2 made of rubber, wherein the shape and fixation of retainer plate The lateral profile of cam 3 is consistent, and the internal diameter of the retainer plate is less than the outer diameter of fixed cam, and retainer plate is in the socket of interference-fit type On fixed cam, circumferentially equal fractions are distributed on retainer plate retention bead, the quantity of retention bead and fixed cam Fixed cam limit face 3a quantity is consistent, and retention bead is placed in the front in each fixed cam limit face and limits fixed cam Plane is completely covered, that is, height, the equivalent width of retention bead and fixed cam limit face, retention bead will fixed cam limits Plane is isolated with the translating cam confined planes 4a of translating cam 4, and when regulation handle 5 is quickly opened, the movement of translating cam is convex Wheel confined planes impinge upon in retention bead, are buffered by the retention bead.

Fixed loop-shaped is substantially consistent with fixed cam lateral profile, and interference fit packet prevents from sending out with cam on cam Raw to relatively rotate or fall off, in the present embodiment, the fixation cam limit face of fixed cam is at 4, that is, the quantity of retention bead 4 are similarly, in 90 ° of circle distributions on retainer plate.

A kind of limiting device for steering column regulation handle of the utility model, structure is simple, easy to assembly；This A kind of limiting device for steering column regulation handle of utility model absorbs energy using the flexible deformation of rubber material, In handle in quick open, translating cam confined planes are impinged upon on limiting device, play buffer function, avoid metal and metal Making contact, can be effectively reduced handle rebound, while also can play inhibit noise effect.

Claims (1)

1. a kind of limiting device for steering column regulation handle, including bracket (2) lateral position in clamp system (1) is arranged Fixation cam (3), translating cam (4) and regulation handle (5), it is characterised in that:

Socket is provided with a limiting device (A) on the fixation cam (3), which covers fixed cam (3) Fixed cam limit face (3a), when regulation handle (5) is quickly opened, the translating cam confined planes (4a) of translating cam (4) are hit It hits on limiting device；

The limiting device (A) includes retainer plate made of rubber (A1) and retention bead (A2), wherein the shape of retainer plate Shape is consistent with the fixed lateral profile of cam (3), and the internal diameter of the retainer plate is less than the outer diameter of fixed cam, and retainer plate is matched in interference Box-like is socketed on fixed cam, and circumferentially equal fractions are distributed on retainer plate retention bead, the quantity of retention bead with Fixation cam limit face (3a) quantity of fixed cam is consistent, and retention bead is placed in the front in each fixed cam limit face simultaneously Fixed cam limit face is completely covered, that is, height, the equivalent width of retention bead and fixed cam limit face, retention bead Fixed cam limit face is isolated with the translating cam confined planes (4a) of translating cam (4), when regulation handle (5) is quickly opened When, the translating cam confined planes of translating cam impinge upon in retention bead, are buffered by the retention bead.