An improved steering column adjustment handle mechanism

Abstract

The present invention discloses an improved steering column adjustment handle mechanism, comprising a column body, an adjustment bracket sleeved on the upper part of the column body, a center hole formed on the side of the adjustment bracket, a screw rod penetrating the center hole and connected to the other side of the adjustment bracket, a first cam, a second cam and a plane bearing sleeved on the outer side of the screw rod in sequence, a protrusion provided on the side of the first cam, a slider welded on the side of the first cam, a slide groove provided on the side of the second cam, a limit block installed on the side of the slide groove, the protrusion inserted into the inner side of the center hole, a nut threadedly connected to the end side of the screw rod, reinforcing ribs and contact blocks provided on the opposite sides of the first cam and the second cam, a connecting block provided on the lower part of the second cam, and a plastic handle connected to the lower part of the connecting block. The present invention simplifies the components of the handle, which is convenient for ensuring the stability of the adjustment force.

Description

Technical Field

[0001] The invention relates to the technical field of steering column adjusting handles, in particular to an improved steering column adjusting handle mechanism. Background Art

[0002] When the car is stopped, the driver can adjust the steering wheel to a suitable position according to his needs. This function is achieved by adjusting the steering column. The handle mechanism of the column is an important part of the adjustment column. The assembly of the existing handle of the adjustment column is generally as follows: a screw passes through the center hole of the adjustment bracket, the end face of the screw is close to the other side of the adjustment bracket, and the other end is used to assemble the handle mechanism and has a thread at the end; the center hole of the first cam passes through the screw and is fitted and fixed to the adjustment bracket, and the second cam is close to the first cam; one end of the handle iron bracket is inserted into the cam, and the other end is inserted into the handle plastic block, and the driver's thumb adjusts the column through the handle plastic block; the nut is tightened with the thread of the screw to make the handle iron bracket fit tightly with the cam; the washer has two holes, the upper hole is clamped with the nut, and the lower hole is fixed to the handle iron bracket through a bolt, see Figure 5 and Figure 6 .

[0003] The existing adjustment handle has too many parts and is complicated to assemble, which is not conducive to installation by workers. On the other hand, the adjustment feel is poor and the adjustment force is unstable, which is not convenient for the driver to operate. Summary of the Invention

[0004] The purpose of the present invention is to provide an improved steering column adjustment handle mechanism, simplify the components of the handle, facilitate assembly, and at the same time, improve the structure to ensure the stability of the adjustment force and improve the adjustment feel, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an improved steering column adjustment handle mechanism, comprising a column body, an adjusting bracket and a screw, the adjusting bracket being sleeved on the upper part of the column body, a side of the adjusting bracket being provided with a center hole, the screw passing through the center hole and connected to the other side of the adjusting bracket, the outer side of the screw being sleeved with a first cam, a second cam and a plane bearing in sequence, the side of the first cam being provided with a protrusion, the side of the first cam being welded with a slider, the side of the second cam being provided with a slide groove, the side of the slide groove being installed with a limit block, the protrusion being inserted into the inner side of the center hole, the slider being movably inserted into the interior of the slide groove, the end side of the screw being threadedly connected with a nut, the flange surface of the nut being pressed against the side of the plane bearing, the opposite sides of the first cam and the second cam being provided with reinforcing ribs and contact blocks, the lower part of the second cam being provided with a connecting block, and the lower part of the connecting block being connected with a plastic handle.

[0006] Preferably, one end of the screw is provided with a threaded section that matches the nut, and the middle section of the screw is provided with a smooth surface.

[0007] Preferably, the sides of the first cam and the second cam are both provided with through holes matched with the screw rod, and the side of the second cam is tightly attached to the side of the plane bearing.

[0008] Preferably, the cross section of the slider is arc-shaped, and the outer wall of the slider is a smooth surface.

[0009] Preferably, the reinforcing ribs are symmetrically arranged in four groups relative to the first cam, and the contact blocks are symmetrically arranged in eight groups relative to the first cam.

[0010] Preferably, the plastic handle is arranged in a Z shape, and a rubber sleeve is sleeved on the outer side of the plastic handle.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The flange surface of the nut is pressed against the outside of the plane bearing, so that the first cam, the second cam and the plane bearing fit tightly together. The integral plastic handle simplifies the use of the original bolts, handle iron brackets and washers, thus optimizing the assembly process and reducing management costs.

[0013] 2. By optimizing the contact structure of the first cam and the second cam and adding a flat bearing, the plastic handle has a smooth adjustment force and a good feel. By using an integral plastic handle instead of an iron handle bracket, the handle weight is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 An exploded view of the present invention;

[0016] Figure 3 It is a schematic side view of the structure of the first cam portion of the present invention;

[0017] Figure 4 It is a schematic side view of the structure of the limiting block of the present invention;

[0018] Figure 5 This is the exploded view of the original handle structure;

[0019] Figure 6 This is a schematic diagram of the cam structure of the original handle mechanism.

[0020] In the figure: 1. Pipe column body; 2. Adjustment bracket; 3. Screw; 4. Center hole; 5. First cam; 6. Second cam; 7. Plane bearing; 8. Raised portion; 9. Slider; 10. Slide groove; 11. Limit block; 12. Nut; 13. Reinforcement rib; 14. Contact block; 15. Connecting block; 16. Plastic handle; 17. Threaded section; 18. Through hole; 19. Rubber sleeve. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 The present invention provides a technical solution: an improved steering column adjustment handle mechanism, comprising a column body 1, an adjustment bracket 2 and a screw 3. The adjustment bracket 2 is sleeved on the upper part of the column body 1. A center hole 4 is formed on the side of the adjustment bracket 2. The screw 3 passes through the center hole 4 and is connected to the other side of the adjustment bracket 2. A first cam 5, a second cam 6 and a plane bearing 7 are sleeved on the outer side of the screw 3 in sequence. A protrusion 8 is provided on the side of the first cam 5. A slider 9 is welded to the side of the first cam 5. A slide groove 10 is provided on the side of the second cam 6. A limit block 11 is installed on the side of the slide groove 10. The protrusion 8 is inserted into the inner side of the center hole 4. The slider 9 is movably inserted into the interior of the slide groove 10. A nut 12 is threadedly connected to the end side of the screw 3. The flange surface of the nut 12 presses on the side of the plane bearing 7. Reinforcing ribs 13 and contact blocks 14 are provided on the opposite sides of the first cam 5 and the second cam 6. A connecting block 15 is provided at the lower part of the second cam 6. A plastic handle 16 is connected to the lower part of the connecting block 15.

[0023] Specifically, one end of the screw rod 3 is provided with a threaded section 17 that matches the nut 12 , and the middle section of the screw rod 3 is provided with a smooth surface, so that the threaded section 17 facilitates the connection with the nut 12 .

[0024] Specifically, the sides of the first cam 5 and the second cam 6 are both provided with through holes 18 that match the screw rod 3 , and the side of the second cam 6 is tightly attached to the side of the plane bearing 7 to facilitate fixation.

[0025] Specifically, the cross section of the slider 9 is arc-shaped, and the outer wall of the slider 9 is a smooth surface, which facilitates the slider to slide into the interior of the slide groove 10.

[0026] Specifically, four groups of reinforcing ribs 13 are symmetrically arranged relative to the first cam 5 , and eight groups of contact blocks 14 are arranged relative to the first cam 5 , so as to increase the stability of contact and facilitate the relative rotation between the first cam 5 and the second cam 6 .

[0027] Specifically, the plastic handle 16 is arranged in a Z shape, and a rubber sleeve 19 is sleeved on the outer side of the plastic handle 16 to increase the comfort of hand contact.

[0028] Working principle: When in use, the flange surface of the nut 12 is pressed against the outer side of the plane bearing 7, so that the first cam 5, the second cam 6 and the plane bearing 7 fit tightly, and the integral plastic handle 16 simplifies the use of the original bolts, handle iron brackets and washers and other components, optimizes the assembly process, and reduces management costs. By optimizing the contact structure of the first cam 5 and the second cam 6 and adding the plane bearing 7, the adjustment force of the plastic handle 16 is smooth and the feel is good. By using the integral plastic handle 16 instead of the iron handle bracket, the weight is reduced.

[0029] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An improved steering column adjustment handle mechanism, comprising a column body (1), an adjustment bracket (2) and a screw rod (3), characterized in that: The adjusting bracket (2) is sleeved on the upper part of the column body (1), and a center hole (4) is opened on the side of the adjusting bracket (2). The screw (3) passes through the center hole (4) and is connected to the other side of the adjusting bracket (2). The outer side of the screw (3) is sleeved with a first cam (5), a second cam (6) and a plane bearing (7) in sequence. The side of the first cam (5) is provided with a protrusion (8), and a slider (9) is welded to the side of the first cam (5). The side of the second cam (6) is provided with a slide groove (10). A limit block (11) is installed on the side of the slide groove (10). The protrusion (8) is inserted into the inner side of the center hole (4), and the slider (9) is movably inserted into the inside of the slide groove (10). The end side of the screw (3) is threadedly connected with a nut (12), and the flange surface of the nut (12) is pressed on the side of the plane bearing (7). The first cam (5) and the second cam (6) are provided with reinforcing ribs (13) and contact blocks (14) on opposite sides, the second cam (6) is provided with a connecting block (15) at the bottom, and the connecting block (15) is connected to a plastic handle (16) at the bottom; one end of the screw rod (3) is provided with a threaded section (17) matching with the nut (12), and the middle section of the screw rod (3) is provided with a smooth surface; the first cam (5) and the second cam (6) are provided with through holes (18) matching with the screw rod (3), and the side of the second cam (6) is tightly attached to the side of the plane bearing (7); the cross section of the slider (9) is arranged in an arc shape, and the outer wall of the slider (9) is a smooth surface; the reinforcing ribs (13) are symmetrically arranged in four groups relative to the first cam (5), and the contact blocks (14) are arranged in eight groups relative to the first cam (5).

2. The improved steering column adjustment handle mechanism according to claim 1, characterized in that: The plastic handle (16) is arranged in a Z shape, and a rubber sleeve (19) is sleeved on the outer side of the plastic handle (16).

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