JP7514757B2 - Door handles - Google Patents

Description

The present invention relates to door handles.

A door handle that houses electronic components in a hollow space formed between the handle body and a front cover that covers the front wall of the handle body is described in Patent Document 1. In this conventional example, a harness guide with cutout-shaped insertion portions opened in multiple guide ribs is connected to the handle body.

The harness drawn from the electronic components is wired along the handle body while being fitted into the insertion portion of the harness guide, and is then drawn out from the wiring drawer to the outside of the handle.

JP 2015-55069 A

However, in the above-mentioned conventional example, when the harness is inserted into the insertion section, depending on the wiring path, etc., a force is applied to the harness in a lifting direction, causing it to fall out of the insertion section, and it is not possible to prevent the harness from becoming caught in the connecting interface when connecting the front cover, resulting in poor assembly workability.

The present invention was made to resolve the above-mentioned shortcomings, and aims to provide a door handle that reliably prevents the harness from floating up, thereby reliably preventing the harness from getting caught when connecting the front cover, and improving the ease of connection, i.e., assembly workability.

According to the present invention, the above object is to
The door handle is formed by covering a front wall of a handle body 2 to which an electronic component 1 is fixed with a front cover 3, and serves as a handle when opening and closing a door,
A harness guide 6 is fixed to the handle body 2, the harness guide 6 including a harness retaining piece 5 that can be elastically deformed from a restricting position that restricts the harness 4 drawn out from the electronic component 1 from floating up from the front wall of the handle body 2 to a release position,
The harness pressing piece 5 can be displaced from a restricted position to a released position by elastically deforming in a plane parallel to the front wall of the handle main body 2, and the harness pressing piece is achieved by providing a door handle having an L-shaped cross-sectional shape in which a flange piece 8 that is shorter than a rising piece 7 protrudes from the end edge of a rising piece 7 perpendicular to the front wall of the handle main body 2.

In the present invention, the door handle is formed by covering the front wall of the handle body 2 with a front cover 3, and the electronic component 1 and the harness guide 6 that guides the harness 4 pulled out from the electronic component 1 to a predetermined wiring position are fixed to the front wall of the handle body 2.

The harness guide 6 is equipped with a harness retainer 5 that can be elastically deformed from a restraining position to a release position. When the harness retainer 5 is in the restraining position, it covers the harness 4 arranged on a specified wiring path on the handle body 2, preventing the harness 4 from lifting up from the front wall of the handle body 2.

Therefore, in the present invention, the harness retainer 5 is elastically deformed to the release position, the harness 4 is positioned on a specified wiring path, and then when the deformation operating force is released, the harness retainer 5 returns to the restraining position by the elastic restoring force, preventing the harness 4 from floating up.

As a result, the harness 4 can be prevented from floating up with a simple operation, and it can be reliably prevented from getting caught when connecting the front cover 3.

The harness retaining piece 5 can be elastically deformed in a direction perpendicular to the front wall of the handle body 2 to move it to the unrestricted position, but if it is formed so that it can be displaced from the restricted position to the unrestricted position by elastically deforming in a plane parallel to the front wall of the handle body 2, the harness retaining piece 5 can be elastically deformed in a plane parallel to the front wall of the handle body 2 to set the harness 4 in a specified wiring path, and then the harness 4 can be covered simply by returning it to the restricted position by the elastic restoring force, so that the harness 4 can be reliably prevented from floating up with a simple operation.

In this case, if the elastic deformation ability of the harness retainer 5 is large in a plane parallel to the front wall of the handle body 2 and the resistance to deformation perpendicular to the front wall is large, the harness retainer 5 can be elastically deformed in a plane parallel to the front wall of the handle body 2 with a small operating force to set the harness 4 in a specified wiring path, and then the harness retainer 5 can be returned to the restricted position by the elastic restoring force, so that the harness 4 can be reliably prevented from floating up without easily being elastically deformed in response to a load in the direction of floating up caused by the harness 4.

When the harness retainer piece 5 is formed in an L-shaped cross section with a flange piece 8 that is shorter than the rising piece 7 protruding from the edge of the rising piece 7 that is perpendicular to the front wall of the handle body 2, it has a large elastic deformation capacity in a plane parallel to the front wall of the handle body 2 and can increase resistance to deformation perpendicular to the front wall.

Furthermore, by providing a wiring groove 9 on the front wall of the handle body 2 through which the harness 4 passes, the harness retainer 5 is pushed to the release position simply by pushing the harness 4 into the wiring groove 9, and then returns to the restricted position due to its elastic restoring force, improving wiring workability.

The harness guide 6 can also be configured to have the harness retaining piece 5 at one end along the wiring direction of the harness 4, and a cross guide piece 10 at the other end that prevents the harness 4, which crosses the front wall of the handle body 2 in the width direction, from lifting up from the front wall.

When configured in this manner, even if the harness 4, which is wired along the opposite edge of the wiring path on the handle body 2, is crossed on the front wall of the handle body 2, the cross guide piece 10 can reliably prevent the harness 4 from floating up.

Furthermore, when the speaker 11 is fixed to the handle body 2, a harness retaining piece 5 can be formed on the fixing member of the speaker 11, and the fixing member can be used as a harness guide 6, thereby reducing the number of parts.

The present invention can reliably prevent the harness from floating up, preventing the harness from getting caught when connecting the front cover and improving assembly workability.

1A and 1B are diagrams showing a handle device using a door handle, in which FIG. 2A is a cross-sectional view taken along line 2A-2A of FIG. 1. FIG. 4A and 4B are diagrams showing the handle body, in which FIG. 4A is a front view, and FIG. 4B is a front view of the handle body after wiring of the harness is completed. 5A is a front view of the harness guide, FIG. 5B is a right side view, FIG. 5C is a view taken in the direction of an arrow 5C in FIG. 5B, and FIG. 5D is a cross-sectional view taken along line 5D-5D in FIG. 6A is a cross-sectional view taken along line 6A-6A in FIG. 4A, and FIG. 6B is an enlarged view taken in the direction of the arrow 6B in FIG. 6A, showing the state in which the harness guide is attached to the handle body. 7A and 7B are enlarged views of the main part of the handle body with the harness guide fixed thereto, where (a) is a front view and (b) is a cross-sectional view taken along line 7B-7B of (a). 8A is an enlarged view of a main part of the handle body showing the state in which the harness is wired; FIG. 8B is a front view showing the wiring process of the harness; FIG. 8C is a front view after the harness has been wired; and FIG. 8C is a cross-sectional view taken along line 8C-8C in FIG.

As shown in Figure 1 and subsequent figures, the door handle is formed by covering the handle body 2 with the front cover 3, and constitutes a handle device together with upper and lower handle bases 13, 14 fixed to the door 12. Base covers 13a, 14a are attached to the surfaces of the upper and lower handle bases 13, 14, respectively, and the door handle is rotatably supported at its lower end by the lower handle base 14, and can be rotated clockwise in Figure 2 around the center of rotation formed by the sliding protrusion 15 on the lower handle base 14.

Rotating the door handle activates the latch operating part 16 formed at the upper end, which in turn activates the latch drive part 13b located on the upper handle base 13, thereby releasing the latch of the locking device (not shown).

The front cover 3 is connected to cover the front wall of the handle body 2, and a printed circuit board (electronic component 1) on which a receiving circuit is mounted that receives a locking/unlocking operation signal output from an electronic key (not shown) is fixed to the front wall (the surface facing forward when attached to the door) of the handle body 2, which includes the latch operation portion 16, the sliding contact protrusion 15, and the handgrip portion 2a for operating the door handle. As shown in FIG. 3, the operation switch 1a on the printed circuit board 1 is covered by a protective cover 17.

The harness 4 drawn from the electronic component 1 arranged at the upper end of the handle body 2 is wired to the lower end of the handle body 2, and is then drawn out of the handle body 2 from the wiring drawer opening 2b. After that, the lock/unlock control device (not shown) performs an authentication operation of the authentication signal contained in the lock/unlock operation signal received by the receiving circuit.

A wiring groove 9 is formed in the front wall of the handle body 2 to wire the harness 4. In this example, as shown by hatching in FIG. 4(a), the wiring groove 9 is formed along the fitting margin with the front cover 3 formed on both left and right side edges of the handle body. The fitting margin is provided with a positioning recess 2c into which a positioning protrusion (not shown) formed on the front cover 3 fits when the front cover 3 is fitted to the outside.

A speaker 11 is fixed to the lower end of the handle body 2, and the harness 4 pulled out from the speaker 11 and the harness 4 pulled out from the printed circuit board 1 are wired in the same wiring groove 9. In order to prevent the harness 4 from protruding from the wiring groove 9, as shown in FIG. 4(b), the harness 4 pulled out to the right side from the printed circuit board 1 is first wired in the right wiring groove 9, and then pulled out of the wiring groove 9 at the lower end of the handle body 2, crosses the front wall, and is inserted into the left wiring groove 9.

A harness guide 6 made of synthetic resin material is fixed to the front wall of the handle body 2 to prevent the harness 4 from getting caught when the front cover 3 is fitted and fixed to the handle body 2.

In this example, the harness guide 6 also serves as a fixing member for the speaker 11 described above, and as shown in FIG. 5, it has a cross guide piece 10 at the upper end, a harness holding piece 5 at the lower end, and a speaker cover part 18 in the center, with mounting holes 6a provided above and below the speaker cover part 18.

As shown in Figures 6 and 7, the harness guide 6 is fixed to the handle body 2 using a fixing screw 19 inserted through the mounting hole 6a, and the speaker 11 is fixed to the handle body 2 via a gasket 20 made of a sponge material that is interposed between the harness guide 6 and the speaker 11 and pressed against the pressing portion 6b of the harness guide 6. As shown in Figure 7(b), the speaker cover portion 18 of the harness guide 6 is formed in a hood shape that defines a space in front of the speaker 11 and outputs sound from an opening facing downward.

As shown in FIG. 7(a), the speaker cover portion 18 is formed with a width dimension that leaves a gap between the speaker cover portion 18 and the wiring groove 9 so that the harness 4 can be inserted into the wiring groove 9 while the speaker cover portion 18 is fixed to the handle body portion 2, allowing the harness 4 to pass through.

As shown in FIG. 7(b), when the cross guide piece 10 is fixed to the handle body 2, it forms a wire passage space 10a between the handle body 2 and the cross guide piece 10 as the ceiling wall. When fixed to the handle body 2, the cross guide piece 10 is allowed to elastically deform perpendicularly to the front wall, i.e., the front side, so that the harness 4 can be introduced into the wire passage space 10a.

The free end of the cross guide piece 10 is formed with an inclined surface 10b to generate a component force in the direction away from the front wall of the handle body 2, i.e., in the lifting direction, due to the pressing force of the harness 4, and the opposite surface is formed with an upright surface 10c to prevent the harness 4 guided into the wire passage space 10a from generating a component force in the lifting direction on the cross guide piece 10.

On the other hand, a pair of harness retaining pieces 5 are arranged at symmetrical positions from the lower end of the speaker cover part 18. Each harness retaining piece 5 has a leg part 5a that extends like an arm downward from the protruding base end from the speaker cover part 18 to the outer edge of the wiring groove 9 so as to be oblique to the wiring groove 9 in a front view, and a bent part 5b that extends from the lower end, i.e., the free end, of the leg part 5a toward the center and has a tip that reaches the inner edge of the wiring groove 9.

As shown in FIG. 5(d), the leg portion 5a and the bent portion 5b are formed with an L-shaped cross section by bending the flange piece 8 toward the center from the edge of the rising piece 7 perpendicular to the front wall of the handle body 2 when fixed to the handle body 2. The flange piece 8 is formed shorter than the rising piece 7 in order to make the bending stiffness against bending perpendicular to the front wall of the handle body 2 greater than the bending stiffness against bending parallel to the front wall.

As a result, the harness retainer piece 5 is easily elastically deformed in a plane parallel to the front wall of the handle body 2, but has low elastic deformation ability in the direction of lifting up from the front wall, and is not easily elastically deformed.

As shown in Figure 8, with the harness guide 6 fixed, the harness 4 pulled out from the printed circuit board 1 is routed through the wiring groove 9 on the right side, then pulled out to the front side and crossed on the front wall. When the harness 4 presses against the inclined surface 10b of the cross guide piece 10, the cross guide piece 10 elastically deforms in the lifting direction, and the harness 4 is captured within the wire space 10a.

Next, the harness 4 is passed through the wiring groove 9 on the opposite side (left side), and as shown in FIG. 8(a), the harness 4 presses against the leg 5a of the harness retainer 5. The leg 5a is then pressed against the base end of the speaker cover part 18, generating an inward force. As a result, the leg 5a elastically deforms in a plane parallel to the front wall to receive the harness 4 in the wiring groove 9, and then the leg 5a elastically returns to its original position as shown in FIG. 8(b).

In this state, as shown in FIG. 8(c), the open end of the wiring groove 9 is blocked by the free edge of the rising piece 7 of the harness retainer piece 5, preventing the harness 4 from coming out of the wiring groove 9. After this, the harness 4 is pulled out from the wiring pull-out opening 2b, and the front cover 3 is fitted to complete the door handle.

The harness 4 is prevented from coming off the wiring groove 9 by the harness retaining piece 5 of the harness guide 6, and the harness 4 is prevented from floating up from the front wall of the handle body 2 by the cross guide piece 10, so the harness 4 is prevented from getting caught when the front cover 3 is attached.

REFERENCE SIGNS LIST 1 Electronic component 2 Handle body 3 Front cover 4 Harness 5 Harness retainer piece 6 Harness guide 7 Rising piece 8 Flange piece 9 Wiring groove 10 Cross guide piece 11 Speaker

Claims (4)

A door handle is formed by covering a front wall of a handle body part to which an electronic component is fixed with a front cover, and serves as a handle when opening and closing a door,
a harness guide is fixed to the handle body, the harness guide having a harness retaining piece that can be elastically deformed from a restricting position that restricts the harness drawn from the electronic component from floating up from the front wall of the handle body to a release position;
The harness pressing piece is elastically deformable within a plane parallel to the front wall of the handle body and can be displaced from a restricted position to a released position, and the harness pressing piece has an L-shaped cross-sectional shape with a flange piece that is shorter than the rising piece protruding from an end edge of a rising piece that is perpendicular to the front wall of the handle body . A wiring groove through which a harness is inserted is provided on the front wall of the handle body,
2. The door handle according to claim 1, wherein the harness retaining piece prevents the harness from coming off the wiring groove when in the restraining position. A door handle according to claim 1 or 2, wherein the harness guide has the harness retainer piece at one end along the wiring direction of the harness, and a cross guide piece at the other end that prevents the harness, which crosses the front wall of the handle body in the width direction, from lifting up from the front wall. The steering wheel has a speaker fixed to the steering wheel body by a fixing member,
4. A door handle according to claim 1, 2 or 3, wherein the harness guide also serves as a fixing member for a speaker.

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