JP4282879B2 - Automotive handle device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automobile handle device.
[0002]
[Prior art]
For example, as an inside handle device for a back door of an automobile, one described in Japanese Utility Model Publication No. 57-21753 is known. In this conventional example, the handle device is configured by rotatably connecting a handle body to a handle base fixed to a door panel of an automobile, and rotating an operation lever fixed to the tip of the handle body by rotating the handle body. Let The operation lever is connected to the lock device via the rod, and the operation force to the handle body is transmitted to the lock device via the operation lever and the rod, and the lock device is operated.
[0003]
[Problems to be solved by the invention]
However, in the above-described conventional example, the assembly of the handle device is performed through the shaft, so that there are disadvantages that the number of parts is large and the number of assembling steps is also large.
[0004]
The present invention has been made to eliminate the above-described drawbacks, and an object of the present invention is to provide an automobile steering wheel device having good assembly efficiency.
[0005]
[Means for Solving the Problems]
In the present invention, the operation lever 4 is externally fitted to the fitting shaft portion 3 of the handle main body 2 and attached, and is elastically locked to the handle main body 2 in the attached state to prevent detachment in the longitudinal direction of the shaft. . As shown in FIG. 4B, the fitting shaft portion 3 and the fitting hole 4a on the operation lever 4 side have a substantially oval cross-sectional shape, and relative rotation is restricted.
[0006]
Therefore, in this invention, since the mounting of the operation lever 4 can be performed by the fitting operation to the fitting shaft portion 3, the assembling workability is improved.
[0007]
Moreover, since the fitting shaft part 3 has an oval cross-sectional shape, there are the following advantages. That is, in order to restrict the relative rotation with the handle body 2 and to fix the operation lever 4, as shown in FIG. 4 (c), as shown in FIG. It is possible to protrude and fit into the key groove 4b on the operation lever 4 side. In this case, the operation lever 4 or the fitting shaft portion 3 is made of a material having a lower strength than a metal material such as a synthetic resin material. In the case of forming with, there is a problem that the torque resistance strength is lowered. Such a problem can be solved by increasing the dimension of the protrusion 6 in the shear direction. In this case, however, the fitting shaft portion 3 or the operation lever 4 becomes unnecessarily large. Provoke. According to the present invention, since the entire fitting shaft portion 3, more precisely, the protruding portion from the inscribed circle C3 resists the shearing force due to rotation, it is not necessary to set an unnecessarily large cross-sectional area. However, it is possible to obtain a desired strength using a synthetic resin material.
[0008]
In this specification, “substantially oval” includes not only a shape in which a pair of semicircular arcs having the same or different curvatures are connected by a tangent line, but also an ellipse, a rectangle having corners with rounded corners, Includes a shape consisting of a plurality of curves in contact. By setting the fitting part shape of the fitting shaft part 3 and the fitting hole 4a in this way, stress concentration at the corners and the like is prevented, and the overall strength is improved. High yield strength can be obtained.
[0009]
Further, when the fitting shaft portion 3 is disposed on the rotation shaft of the handle body 2 with respect to the handle base 1, as shown in FIG. 4B, the protruding direction of the handle portion 5 of the handle body 2 and the fitting shaft portion. When the major axis direction of 3 is made coincident, the section modulus with respect to the rotational moment (M) around the axis orthogonal to the major axis increases. As a result, even if the handle portion 5 of the handle body 2 is erroneously operated in the direction of pulling up, the handle body 2 is not easily broken.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
1 to 3 show an embodiment of the present invention. The handle device has a handle base 1 fixed to the inner panel 7 and a handle body 2 connected to the handle base 1. The handle base 1 is formed in a tray shape from a synthetic resin material, and a handle insertion cylinder 8 including a perfect circular through hole 8a is formed in the recess 1a.
[0011]
The handle body 2 is formed of a synthetic resin material, and as shown in FIG. 5, includes a handle portion 5 and a rotary shaft portion 9 that protrudes from one end portion of the handle portion 5 in a direction orthogonal to the handle portion 5, A perfect circular section 9a formed at the boundary between the rotary shaft 9 and the handle 5 is inserted into the through hole 8a on the handle base 1 side and attached. In the inserted state, the handle body 2 is rotatable around the central axis of the rotary shaft portion 9, and as shown in FIG. 4 (a), stopper protrusions 8b and 9b projecting from the side wall of the through hole 8a and the perfect circular cross section 9a. The rotation angle of the handle main body 2 is regulated by bringing them into contact with each other.
[0012]
A fitting shaft portion 3 is formed over a predetermined length below the perfect circular cross section 9a. As shown in FIG. 4B, the fitting shaft portion 3 has an elliptical approximate cross-sectional shape in which an orthogonal axis passing through the central axis is a long and short axis, and a positioning projection 10 is projected on the long axis. Further, the center of the fitting shaft portion 3 coincides with the rotation axis of the rotation shaft portion 9, and the long axis coincides with the protruding direction of the handle portion 5 of the handle body 2.
[0013]
The fitting shaft portion 3 reaches a lever mounting portion 9d having a perfect circular cross section through a gradual change region 9c following the fitting shaft portion 3, and a locking flange 9e is provided at the tip of the lever mounting portion 9d.
[0014]
On the other hand, the operation lever 4 is an injection-molded product of a synthetic resin material, and is formed by protruding a lever portion 4d in a direction orthogonal to the handle fitting cylinder portion 4c. As shown in FIG. 1B, an operation cable insertion hole 4e is formed at the tip of the lever portion 4d, and the operation cable 11 with the spherical head 11a held in the operation cable insertion hole 4e is a cable of the handle base 1. It is held by the holding unit 1b. Further, as shown in FIG. 6, a spring locking portion 4f is projected from the lever portion 4d, one end is locked to the spring locking portion 1c on the handle base 1, and the coil portion 12a is a handle fitting tube portion. The other end of the return spring 12 mounted so as to surround 4c is locked, and a return force toward the initial rotation position shown in FIG.
[0015]
The handle fitting cylinder portion 4c has a fitting hole 4a at the center, and a locking claw 13 projects inwardly at its end. The fitting hole 4a is formed in the same cross-sectional shape as the fitting shaft part 3 and the gradual change region 9c of the handle body 2.
[0016]
Therefore, in this embodiment, after the rotary shaft portion 9 of the handle body 2 is inserted into the handle insertion tube 8 of the handle base 1, when the operating lever 4 is pushed in from the terminal end side of the rotary shaft portion 9, it is engaged by the locking flange 9e. After the pawl 13 is elastically deformed once, it returns to its original posture and engages with the engagement flange 9e, and is prevented from being detached in the longitudinal direction of the shaft. In this state, as shown in FIG. 4B, the fitting shaft portion 3 of the handle body 2 is fitted in the fitting hole 4a of the operation lever 4, and the fitting shaft portion 3 and the fitting hole Since 4a is exhibiting an oval shape, both are integrated also with respect to a rotation direction, without idling.
[0017]
【The invention's effect】
As is clear from the above description, according to the present invention, the assembly efficiency can be improved. Further, even if the operation lever and the handle main body are formed of a synthetic resin material, it is possible to sufficiently secure the anti-rotation strength between the handle main body and the operation lever.
[Brief description of the drawings]
1A and 1B are views showing the present invention, in which FIG. 1A is a front view and FIG. 1B is a rear view;
2 is a cross-sectional view taken along line 2A-2A in FIG.
3 is a cross-sectional view taken along line 3A-3A in FIG.
4 is a cross-sectional view of FIG. 2, in which (a) is a cross-sectional view of the handle fitting tube portion and the handle body cut along line 4A-4A in FIG. 2, and (b) is an operation lever and handle body. Sectional drawing cut | disconnected by the 4B-4B line | wire of FIG. 2, (c) is sectional drawing which shows the conventional rotation prevention means.
FIGS. 5A and 5B are diagrams showing a handle body, in which FIG. 5A is a rear view, and FIG. 5B is a side view.
6A and 6B are diagrams illustrating an operation lever, in which FIG. 6A is a rear view, FIG. 6B is a front view, and FIG. 6C is a sectional view taken along line 6C-6C in FIG.
[Explanation of symbols]
1 Handle base 2 Handle body 3 Fitting shaft 4 Operation lever 5 Handle

Claims (2)

A handle main body formed of a synthetic resin material, including a rotary shaft portion formed with a perfect circular cross-section , rotatable around a central axis of the rotary shaft portion with respect to the handle base;
An operating lever that is externally fitted to a fitting shaft portion formed over a predetermined length from the perfect circular cross section to the free end portion of the rotating shaft portion of the handle body, and transmits an operating force to the handle body to the lock device. And
The fitting shaft portion has a substantially oval cross-sectional shape with an orthogonal axis passing through the central axis of the rotating shaft portion as a long and short axis, and a free end in the rotating shaft portion of the fitting shaft portion having the oval cross-sectional shape. On the side, a lever mounting part with a perfect circular cross section is formed through a gradual change region, and a locking flange is provided at the tip of the lever mounting part,
The operation lever is fitted with a fitting shaft portion in a fitting hole formed in the same cross-sectional shape as the fitting shaft portion to restrict relative rotation with the handle body, and elastically moves to the locking flange. An automotive steering wheel device that is locked and retained on the steering wheel body . The handle body includes a handle portion that protrudes in a direction orthogonal to the fitting shaft portion, and is rotatable around the central axis of the fitting shaft portion,
2. The handle device for an automobile according to claim 1, wherein the long axis direction of the fitting shaft portion coincides with the protruding direction of the handle portion.

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