JP3149973B2 - Assembling structure of rotary knob - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for integrally attaching a rotary operation knob to a rotary operation shaft member.

[0002]

2. Description of the Related Art The connection structure of a rotary operation knob of this type is as follows.
For example, it is employed in a lock mechanism and an unlock mechanism of various devices.

FIG. 10 shows an example of a conventional structure for assembling a rotary operation knob.
01 is screwed to a rotating shaft member (partner component) 103 with a screw 102. As shown in FIGS. 10 and 11, the rotary operation knob 101 has a stepped recess 10 on the front side of the knob body 101a.
4, and a shaft fitting hole 105 is provided on the back side of the knob body.

Thus, the distal end 10 of the shaft member 103 which constitutes a part of a lock mechanism, a switch mechanism, etc., not shown.
FIG. 11 shows the fitting portion 101b of the rotary operation knob 101 in FIG.
And a screw 1 inserted into the screw insertion hole 106 from the side of the concave portion 104 into the distal end portion 103a of the shaft member 103 inserted and disposed in the shaft insertion hole 105 as shown in FIG.
By screwing 02, the knob 101 is fastened and fixed to the shaft member 103. By attaching the cover plate 107 to the knob body 101a, the concave portion 104 of the knob body 101a and the head 102 of the screw 102 are attached.
a.

FIGS. 12 and 13 show another conventional example. In the case of this example, the rotation operation shaft member 109 is fitted to the rotation operation knob 108, and the fitting portion 108a of the knob 108 and the shaft member 10 are fitted.
By attaching a clip 112 made of a wire into concave grooves 110 and 111 formed on the outer peripheral surface of the shaft 9, the knob 108 is turned to the distal end 109 a of the shaft member 109.
To be connected integrally.

[0006]

However, in the conventional structure for assembling a rotary operation knob as described above, the number of parts and the number of assembling steps are large, and the assembling work is troublesome, resulting in an increase in cost. There is a problem.

The present invention has been made in view of such problems, and has as its object to reduce the number of parts and the number of assembling steps, and to provide an inexpensive rotary operation that can be easily performed. An object of the present invention is to provide a knob assembly structure.

[0008]

To SUMMARY OF THE INVENTION To achieve the above object, the present invention, while integrally forming the elastic engagement portion to a portion of the fitting wearing portion projecting from the central portion of the back surface of the knob body, before
The elastic engagement portion is provided on the side of the arc-shaped wall portion of the fitting portion.
Base portion of the arc-shaped wall portion surrounded by the cutout portion
At the end of the elastic piece
An inclined surface inclined toward the inside of the elastic piece;
Engagement sections each having a locking cross section substantially orthogonal to the piece
While it is composed of mating projections, the shaft
Extending in a direction perpendicular to the axis of the shaft member on an arc-shaped surface;
Forming an engaging groove consisting of a concave groove, and fitting the shaft member into the fitting portion and making the engaging protrusion click-engage with the engaging groove; configured as assembled integrally with, and by energizing the knob body in the direction of tilting forces to the fitting wearing portion and the shaft member, between the engaging projection and the engaging groove The engagement state can be released.

FIG. 1 to FIG. 9 show an embodiment of the present invention.
This will be described with reference to FIG.

FIG. 1 shows an automobile door (side door) 20.
1 shows a window regulator 21 disposed in the first embodiment. As shown in FIG. 1, a guide rail 3 attached to the door inner panel 1 so as to extend in the vertical direction includes:
The stopper assembly 22 is disposed at an intermediate position between the upper end and the lower end, that is, an intermediate position M between the top dead center position H and the bottom dead center position L of the slider 5.

As shown in FIG. 3, the guide rail 3 has a hat-shaped cross section, and the base 5a of the slider 5 is slidably mounted along the guide rail 3. The base portion 5a is fixed to the operation wire 6 inserted into the guide rail 3, and the slider 5 is guided along the guide rail 3 together with the operation wire 6. The base 5a
The supporting members 1b are provided on the protruding pieces 5b and 5c protruding from both sides of the
The window glass 4 is attached via 6a and 16b.

Further, the above-described stopper assembly 22
As shown in FIGS. 2 and 4, a board 23 fixed at an intermediate position of the guide rail 3, a stopper lever 24 arranged on the back surface of the board 23, and a projecting arrangement on the front side of the board 23 A shaft member 25 for rotation operation rotatable with respect to the substrate 23 and integrally caulked with respect to the stopper lever 24;
5 and a spring 26 whose both ends are engaged with the bent portion 23a of the substrate 23 and the bent portion 24a of the stopper lever 24, respectively. Normally, the stopper lever 2 is driven by the urging force of the spring 26.
4 is an arrow A in FIG. 2 about the shaft member 25
The bent portion 24a of the stopper lever 24 abuts on the stopper surface 23b of the substrate 23 and is positioned at a set position indicated by a solid line in FIG.

As shown in FIG. 5, the shaft member 25 has a pair of flat surface portions 25 facing each other.
a, 25b and a pair of arc-shaped surface portions 25 facing each other
c, 25d and a cylindrical portion 25e which is a base of these surface portions 25a to 25d. As shown in FIG. 5, an engagement groove 27 formed of a concave groove extending in a direction perpendicular to the axis of the shaft member 25 is provided on the arcuate surface portion 25 d of the shaft member 25. A rotary operation knob 28 is engaged with the distal end.

The above-mentioned rotary operation knob 28 is made of an integrally molded product made of synthetic resin. On the surface side of the knob 28, a pair of concave portions 29a and 29b,
a and a knob 29c formed between them. An identification mark 30 composed of a hemispherical recess is formed on the front end face of the knob 29.

A tubular fitting portion 31 is integrally formed at the center of the back surface of the main body 28a of the knob 28. This fitting part 3
The one hollow hole 32 is formed so as to correspond to the size and shape of the distal end portion of the shaft member 25, and as shown in FIG. 6, a pair of flat wall portions 31a and 31b facing each other.
And arcuate wall portions 31c and 31d. Then, as shown in FIGS. 6 and 7, the above-mentioned fitting portion 31 is provided with a cutout portion 33 on the side of the arc-shaped wall portion 31 d,
The base of the arc-shaped wall 31d surrounded by the notch 33 is left to form an elastic piece 34. Further, an engagement protrusion 37 having an inclined surface 35 inclined toward the inside of the elastic piece 34 and a locking step surface 36 substantially perpendicular to the elastic piece 34 is integrally formed at the tip of the elastic piece 34. An elastic engaging portion 38 formed of the elastic piece 34 and the engaging protrusion 37 is integrally formed.

Thus, the rotary operation knob 28 is assembled to the rotary operation shaft member 25 as follows.
First, by positioning the identification mark 30 of the knob 28 upward, for example, the positioning (orientation) with respect to the shaft member 25 is performed.
Is pushed toward the shaft member 25. Along with this,
Due to the sliding contact between the inclined surface 35 of the elastic piece 34 of the fitting portion 31 and the arc-shaped wall 25d of the shaft member 25, the elastic piece 34 is elastically deformed outward as shown by a dashed line in FIG. When the engagement protrusion 37 of the piece 34 reaches the engagement groove 27 of the shaft member 25, the engagement protrusion 37 is click-engaged with the engagement groove 27 as shown by a solid line in FIG. As a result, the knob 28 is prevented from coming off and rotating from the shaft member 25 while the shaft member 2 is stopped.
5 is integrally assembled.

When the knob 28 is removed from the shaft member 25, the upper end of the knob body 28a (the knob body) is removed.
28a and the elastic engaging portion 38 with respect to the axis of the fitting portion 31.
Is the opposite knob body surface part) and push it in with your finger from the front side
Nothing, or knob body back side of the lower end portion (the elastic engagement portion
9) , the knob body 28a is pulled by a finger from the back surface side so that the knob body 28a is fitted into the fitting portion 31 as shown by a dashed line in FIG.
And forcibly tilting with respect to the axis of the shaft member 25
To be elastically deformed and molded integrally with the knob 28
Engagement of the shaft member 25 with the engagement projection 37
The knob 28 may be pulled out of the shaft member 25 in a state where the knob 28 is removed from the groove 27 .

On the other hand, the aforementioned shaft member 25 and knob 2
8 is normally arranged at a predetermined initial rotation position by the urging force of the spring 26, and accordingly, the stopper lever 24 is arranged at a set position indicated by a broken line in FIG. Thereby, the window glass 4
Is locked at the intermediate height position at the stopper surface 40 of the stopper lever 24, the window glass 4 is lowered to the bottom dead center position L, and the window opening 2 is not fully opened. Is regulated as follows.

Specifically, when the regulator handle 7 is rotated while the slider 5 is at the upper end position (top dead center position H), the slider 5 is lowered while being guided by the guide rail 3. When the slider 5 reaches the position where the stopper lever 24 of the stopper assembly 22 is disposed,
As shown in FIGS. 2 and 4, the base portion 5a of the slider 5 comes into contact with the stopper surface 40 of the stopper lever 24, and the further downward movement of the slider 5 is prevented. As a result, the window glass 4 is moved to the top dead center position H (fully closed position) and the bottom dead center position L
(The fully open position). Therefore, in normal times, the window glass 4 can freely slide between the top dead center position H and the intermediate position M.

When the window glass 4 is to be forcibly lowered beyond the intermediate position, the knob 29c of the rotary knob 28 is pinched and rotated.
The rotation shaft member 25 and the stopper lever 24 are rotated in the direction of arrow B in FIG. 2 against the urging force of the spring 26 to be disposed at the position indicated by the two-dot chain line. As a result, the stopper surface 40 of the stopper lever 24 is moved to a position deviated from the movement path of the slider 5 , so that the slider 5 and the window glass 4 is a Rukoto is lowered the intermediate position further than M, thus making it possible to move to the bottom dead center position L (fully open position).

Thereafter, as the rotation operation of the rotation knob 28 is released, the stopper lever 24 is returned by the urging force of the spring 26. When the slider 5 is raised by rotating the regulator handle 7 in such a state, the base portion 5a of the slider 5 slides on and presses the inclined surface 41 (see FIG. 2) of the stopper lever 24. The stopper lever 24 is turned in the direction of arrow B in FIG. 2 against the urging force of the spring 26. When the base portion 5a gets over the inclined surface 41, the stopper lever 24 is moved back by the urging force of the spring 26, and the bent piece 24a of the stopper lever 24 is engaged with the stopper surface 23b of the substrate 23. Thereby, the window glass 4 is set again in a state where it is prevented from descending at the intermediate position M.

According to the structure for assembling the rotary operation knob 28 having the above-described configuration to the rotary operation shaft member 25, the knob can be used without using the conventionally used parts such as fastening screws and clips. 28 can be click-engaged with the shaft member 25 with one touch. Therefore, the number of parts is small and the cost is low without requiring a separate independent member.
In, yet, both members 28 in an extremely simple assembly work,
25 mutually assembling operations can be performed, which is very practical. In addition, by providing the identification mark 30,
It is possible to prevent erroneous assembly from occurring, and to improve the efficiency of the assembly work. Further, since the elastic engagement portions 38 are integrally molded as part of the fitting portion 31, and communicates the dynamic to the knob body 28 is forcibly tilted with respect to wear portion 31 and the shaft member 25 fitted to the knob body 28a Elastic engaging part 38
Is tilted, and the assembled state (engaged state) of the knob 28 and the shaft member 25 is released, and the shaft member 2 is released.
Removal of the knob 25 from the knob 5 can be performed easily and quickly. Therefore, it is convenient for disassembly and repair work and maintenance work.

As described above, one embodiment of the present invention has been described.
The present invention is not limited to the embodiments described above, and various modifications and changes can be made based on the technical idea of the present invention. For example, the arrangement positions of the elastic engagement portion 38 in the fitting portion 31 of the rotation operation knob 28 and the engagement groove 27 in the rotation operation shaft member 25 may be changed as necessary as long as they correspond to each other. It is possible. Needless to say, the structure for assembling the rotary operation knob 28 according to the present invention can be applied to various devices other than the wind regulator 21.

[0024]

As described above , according to the present invention, the knob body
An elastic engaging part is provided on a part of the fitting part protruding
And the elastic engagement portion is attached to the fitting portion.
Notch provided on the side of the arc-shaped wall of
An elastic piece connected to the base of the arc-shaped wall;
At the tip of the elastic piece toward the inside of the elastic piece.
An inclined surface that is inclined and a latch that is substantially perpendicular to the elastic piece.
A cross-section and an engagement protrusion each having
The shaft member is provided on the arc-shaped surface of the shaft member for rolling operation.
An engaging groove consisting of a concave groove extending in a direction perpendicular to the axis of
The shaft member is fitted to the fitting portion,
By making the mating projection click-engage with the engagement groove,
A rotary operation knob is assembled integrally with the shaft member.
With such a configuration , separate members such as fastening screws and clips are not required, and the assembly can be performed by an extremely simple operation. Therefore, there is a great practical advantage that the number of parts is small, the assembling work is easy, and the cost is low.
Further, according to the present invention, the elastic engaging portion is formed as a part of the fitting portion.
To form the knob body against the fitting part and the shaft member.
Forcefully in the direction of tilting,
So that the engagement state between the protrusion and the engagement groove can be released.
Therefore, the knob can be removed from the shaft member by a simple operation at the time of disassembly repair or maintenance, which is very convenient.

[Brief description of the drawings]

FIG. 1 is a side view of a vehicle door provided with a window regulator according to the present invention.

FIG. 2 is an enlarged plan view of a main part of the window regulator.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is an exploded perspective view of a rotating knob and a shaft member.

FIG. 6 is a perspective view of a rotary operation knob as viewed from the back side.

FIG. 7 is a side view of a rotary operation knob.

FIG. 8 is a side view showing a state where the shaft member is assembled to the knob.

FIG. 9 is an enlarged side view of a main part showing an operation when removing the knob from the shaft member.

FIG. 10 is an analysis perspective view showing an example of a conventional rotary operation knob assembly structure.

FIG. 11 is a cross-sectional view showing an assembled state of a conventional rotary operation knob.

FIG. 12 is an exploded perspective view showing another example of a conventional rotary operation knob assembling structure.

FIG. 13 is a plan view showing an assembled state of a conventional rotary operation knob.

[Explanation of symbols]

 25 Rotational operation shaft member 27 Engagement groove 28 Rotational operation knob 28a Knob body 30 Identification mark 31 Fitting part 34 Elastic piece 37 Engagement projection 38 Elastic engagement part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05B 3/00 E05B 3/04

Claims (1)

(57) [Claims] [Claim 1] A portion of the fitted and <br/> portion projecting from the central portion of the back surface of the knob body while integrally forming the elastic engagement portion, the bullet
A sex engagement portion provided on the side of the arc-shaped wall portion of the fitting portion.
Surrounded by a notch and at the base of the arc-shaped wall
The elastic piece provided continuously and the tip of the elastic piece
An inclined surface inclined toward the inside of the elastic piece;
Engagement projections each having a locking cross section substantially orthogonal to the
, While the arc of the shaft member for rotating operation
Extending in a direction perpendicular to the axis of the shaft member
An engaging groove formed of a concave groove is formed, the shaft member is fitted to the fitting portion, and the engaging protrusion is click-engaged with the engaging groove, so that a rotary operation knob is attached to the shaft member. configured as assembled together, and, by energizing the knob body in the direction of tilting forces to the fitting wearing portion and the shaft member, the engagement between the engaging projection and the engaging groove A structure for assembling a rotary operation knob, which is configured to be able to release a combined state.