JP2606550Y2 - Rotary body rotation positioning device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a rotary operation knob for selecting an air outlet provided on a switch panel of a vehicle, and a rotary knob.
The present invention relates to a rotary positioning device for a rotary body used for a rotary operation knob of a tar switch.

[0002]

2. Description of the Related Art A switch panel of an automobile is provided with an operation knob for adjusting a temperature and an operation knob for selecting an outlet. The rotational positions of these operation knobs are determined by a click stop mechanism. In other words, a circular body that rotates integrally with the spindle of the operation knob is attached, and a small ball provided so as to apply a projecting force to the panel body and a concave groove provided on the inner peripheral surface of the circular body have a click stop mechanism. And the rotation position of the operation knob is determined by the click stop mechanism.

FIG. 6 shows a rotary positioning device which is the above-mentioned click stop mechanism, and 10 is a bearing portion of a switch panel main body. On this bearing portion 10, a support shaft 11 of an operation knob is rotatably mounted. Above the bearing 10, there is provided a projecting portion 12 integrally formed with the bearing 10 and projecting from the rear surface of the switch panel body. This protrusion 12
Is formed with a small hole 12a extending in the direction of the support shaft 11 of the operation knob. A spring 13 and a small ball 14 to which a projecting force is applied by the spring 13 are provided in the small hole 12a.

[0005] Reference numeral 15 denotes a circular body fixed to the support shaft 11 of the operation knob so as to rotate integrally with the operation knob. On the inner peripheral surface 15a of the circular body 15, small concave grooves 15b as shown in the figure are formed at five positions along the inner peripheral surface.

The circular body 15 has a flange 15
c is formed, and notches 15d are formed at two places on the flange 15c as shown in the figure. This notch 15d is provided with a hook 1 provided in the switch panel body.
6 and then rotating the circular body 15, the flange 15c is engaged with the hook portion 16 and the circular body 15 is temporarily fixed to the switch panel main body. Removal from the switch panel is prevented.

[0006] When the circular body 15 is mounted on the support shaft 11 of the operation knob, the rotational position is determined in advance and mounted. That is, a groove is formed in the support shaft 11 of the operation knob in advance, and a projection that engages with the groove is formed in the bearing of the circular body 15, whereby the circular body 15 is rotated at the rotational position shown in FIG. It is fixed to the support shaft 11 of the operation knob.

In the state shown in FIG. 6, the rotation operation range of the operation knob is determined so that the operation knob can be rotated 180 degrees counterclockwise. That is, the spindle 11 of the operation knob
A rotation range regulating mechanism of the operation knob is provided between the switch panel body and the switch panel body by a known means.

The rotary positioning mechanism is such that a click stop mechanism formed by a small ball 14 having a protruding force provided on a switch panel main body and a concave groove 15b of a circular body 15 rotates an operation knob. Thus, the knob operates at five places, provides moderation when operating the operation knob, and determines the rotational position of the operation knob.

[0009]

In the above-described rotary positioning device, the small ball 14 may protrude from the small hole 12a of the protruding portion 12 when the circular body 15 is mounted, which hinders the work. There is a point.

That is, when the circular body 15 is mounted, the spring 13 and the small ball 14 are mounted on the support shaft 11 of the operation knob while being pushed into the small hole 12a of the projecting portion 12. Since the rotation positions of 15 have to be determined in advance, it is not easy to assemble the operation knobs and the circular body, etc., resulting in a rotation positioning device having extremely poor assembly work efficiency.

SUMMARY OF THE INVENTION In view of the above-mentioned circumstances, an object of the present invention is to develop a rotary positioning device for a rotary body such as an operation knob which can prevent small balls from jumping out and greatly improve the efficiency of assembly work.

[0012]

In order to achieve the above-mentioned object, the present invention is to fix a circular body to a support shaft of a rotating body attached to a body so as to rotate within a predetermined range. the rotary positioning device for determining the rotational position of the rotary member by the globules and click stop mechanism composed of a from the small holes provided in the groove and body formed on the inner peripheral surface of the body protruding in the spring force, the circular The shape body can communicate with the small hole of the body
Provided ability to form a small hole for insertion from the outside of the globules and the spring a circular shaped body as described above, through the small holes of the circular body
The small ball and spring inserted into the small hole of the
To turn the small hole out of communication with the small hole in the fuselage.
Omission Te stopped and, at a position rotating the circular body, and fastening the circular body the support shaft of the rotating body, the rotating body is circular-shaped body and the body
Suggest rotational positioning device for a rotary body, characterized in that where the structure is positioned to rotate within a predetermined range which does not communicate the stoma.

[0013]

The rotary positioning device connects the small holes of the circular body to the small holes of the body before the circular body is fixed to the support shaft of the rotating body. Then, in such a state of communication, the spring and the small ball are pushed into the small hole of the body from outside the circular body.

After the spring and the small ball are pushed in, the circular body is rotated, and the two small holes are disconnected. Thus, the small ball to which the projecting force is applied by the spring is pressed against the inner surface of the circular body and is prevented from jumping out.

Thereafter, the rotational positions of the circular body and the rotating body are determined relative to each other, and the circular body is fixed to the spindle of the rotating body. That is, when the rotating body rotates within a predetermined range, the circular body is fixed to the support shaft of the rotating body at the mutual rotation position of the rotating body and the circular body so that the two small holes do not communicate with each other. .

[0016] The rotation positioning device thus configured is
A click stop mechanism formed by a concave portion formed on the inner peripheral surface of the circular body and a small ball protruding from the body small hole provides a moderation during rotation of the rotating body within a predetermined range, thereby performing rotation positioning. .

[0017]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a switch panel of an automobile provided with a rotation positioning device for a rotating body according to the present invention;
FIG. 2 is a simplified sectional view of the switch panel. The operation knob 50, which is a rotating body, includes a support shaft 50a and an operation portion 50b, and a protrusion 50c for defining a rotation range is formed on the support shaft 50a as shown in FIG.

A fitting hole (not shown) is formed in the support shaft 50a along the axis from the front end surface thereof, and has a groove 50d on the outer surface.

Reference numeral 51 denotes a thin plate-shaped display plate provided with a symbol mark on the surface, 52 denotes a panel plate having a fitting concave portion 52a for fitting the display plate 51, and 53 denotes light emitted from the inside of the switch panel. A light guide lens 54 for irradiating light to the symbol mark of the display panel 51, a panel body 54 having a fitting concave portion 54a for fitting the light guide lens 53, and a support shaft 50a of the operation knob 50 is mounted on the panel body 54. A cylindrical bearing portion 55 for bearing is provided integrally.

A notch 55a is formed in the bearing portion 55, and the notch 55a engages with the protruding piece 50c of the operation knob 50 to set the operation knob 50 in a rotation range of 180 degrees.

A plate 56 and a projecting portion 57 are integrally formed on the back surface of the panel body 54. Projection 57
Is provided directly above the bearing portion 55 and has a bottomed hole (small hole) 57a directed in the direction of the support shaft of the operation knob 50, and a spring 58 and a small ball 59 as shown in FIG. Is provided. The small ball 59 is provided so as to protrude from the bottomed hole 57a by a spring 58, and fits into a concave groove of a circular body 60 described later to form a click stop mechanism.

The display panel 51 has an operation knob 5
A large-diameter through-hole 51a for fitting a part of the hole 0 is formed, and the panel plate 52 is formed with a through-hole 52b communicating with the through-hole 51a of the display plate 51 and having a smaller diameter than the through-hole 51a. .

The light guide lens 53 has a circular cutout 53a which fits into a bearing 55 formed in the panel body 54. The panel body 54 has a shaft hole 54b passing through the bearing 55. It is formed.

The display plate 51 is connected to the fitting recess 52 of the panel plate 52.
a, and the light guide lens 53 is fitted into the fitting recess 54 a of the panel body 54. The locking claws 52c provided on the left and right upper sides of the panel plate 52
Then, the panel plate 52 is attached to the panel main body 54 by being locked to the panel c.

The switch panel thus formed has a through hole 51a of the display panel 51 and a through hole 52 of the panel plate 52.
b, notch 53a of light guide lens 53 and panel body 54
The shaft holes 54b communicate with each other to form insertion holes for the support shaft 50a.

The circular body 60 includes an annular portion 61 and a bottom portion 6.
As shown in FIG. 3, the annular portion 61 is provided with a flange 61a having a notch 61b, and the inner peripheral surface of the annular portion 61 has a spring provided in a bottomed hole 57a of a protruding portion 57. Five angled grooves 61c forming a click stop mechanism by 58 and the small ball 59 are formed on the semicircular side.

The annular portion 61 has a small hole 61d. As shown in FIG. 4, the small hole 61d has a diameter large enough to allow the spring 58 and the small ball 59 to pass through. Further, when the circular body 60 is temporarily fixed to the panel main body 54 with the projecting portion 57 being on the inside, the small hole 61d can communicate with the bottomed hole 57a of the projecting portion 57.

A bevel gear 62a is provided on the bottom 62 of the circular body 60.
The projecting formation, this bevel gear 62a is formed a shaft hole 62b for rotatably supporting the support shaft 50a is. Also, bevel gear 6
The shaft hole 62b of 2a is formed with a projection 62c that fits into a groove 50d formed on the support shaft 50a of the operation knob 50.

The projection 62c is used to connect the circular body 60 to the support shaft 5.
When the operation knob 50 is rotated in a range of 180 degrees, the circular body 60 is rotated in a range B shown in FIG. The five chevron grooves 61c engage with the small balls 59. The rotation range of the operation knob 50 is determined by the projection 50c and the notch 55a of the bearing 55.

On the other hand, a plate 5 on the back surface of the panel body 54
6 is provided with a mounting hole 56a of the circular body 60, and a shaft projection 56b for rotatably supporting the operation knob 50 is provided on the rear side of the mounting hole 56a. A circular body 60 is provided on the front side of both sides of the mounting hole 56a.
4 is provided with a hook 56c for temporarily fixing.

In the above configuration, first, the circular body 60 is attached to the back side of the panel body 54. First, as shown in FIG. 3, hooks 5 provided on both sides of the mounting hole 56a are provided.
The circular body 60 is pressed against the back surface of the panel body 54 so that the notch 61b of the flange 61a is aligned with 6c.
Thereafter, as shown in FIG. 4, the circular body 60 is rotated so that the small holes 61 d face the bottomed holes 57 a of the protrusions 57.
When the circular body 60 is rotated, the flange 61a of the circular body 60 is locked between the panel body 54 and the hook 56c, and the circular body 60 is temporarily fixed to the switch panel.

After the small hole 61d is communicated with the bottomed hole 57a, the spring 58 and the small ball 59 are pushed into the bottomed hole 57a from the outside of the circular body 60 through the small hole 61d.
The small ball 59 is protruded by the spring 58 and has a small hole 61d.
The small ball 59 is pushed into the bottomed hole 57a with a fingertip to rotate the circular body 60 again.

This rotation causes the small hole 61d to move and become disconnected from the bottomed hole 57a, so that the small ball 59 having a projecting force comes into pressure contact with the inner surface of the circular body 60. In this state, the small ball 59 is prevented from jumping out of the bottomed hole 57a.

FIG. 5 shows a small ball 5 by rotating a circular body 60.
9 is engaged with the first angled concave groove 61c of the circular body 60, and shows a state where the click stop is performed.

In the state shown in FIG. 5, the operation knob 50 is attached to the switch panel. The support shaft 50a of the operation knob 50 is inserted through the insertion hole formed in the switch panel, and the groove 5
The operation knob 50 is pushed by aligning 0d with the projection 62c.
The circular body 60 has its shaft hole 62b supported by the support shaft 50a and is integrally mounted. The circular body 60 shown in FIG.
In the rotation state of, the projection 62c is located on the right side .
That is, when the operation knob 50 is inserted, the small hole 61 d
From the position where the bottomed hole 57a communicates with the
Turn right as seen from above, and in the first angled groove 61c in the rotation direction
Click stop is assumed. And the operation knob
50 rotated counterclockwise 90 degrees when viewed from the front
Then, the support shaft 50a is inserted into the shaft hole 62b. Note that FIG.
FIG. 6 is a cross-sectional view of a part of the flannel body and the circular body 60 viewed from the rear.
is there.

When the operation knob 50 is further pushed in, the support shaft 5
No. 55a of the bearing portion 55
And is prevented from pushing in the axial direction. At the same time, the shaft protrusion 56b of the mounting hole 56a is axially inserted into a fitting hole (not shown) formed at the tip of the support shaft 50a, and the operation knob 50 is rotatably mounted on the switch panel.

The operation knob 50 attached to the switch panel in this manner can be rotated by setting the range in which the protruding piece 50c moves within the notch 55a of the bearing portion 55 as a predetermined range. Is click-stopped at the positions of the five angled grooves 61c of the circular body 60 by the rotation operation of.

As can be seen from the above description, this rotary positioning device pushes the spring 58 and the small ball 59 into the bottomed hole 57a of the protruding portion 57 from the small hole 61d of the circular body 60, and then rotates the circular body 60. For example, the small ball 59 is pressed against the inner surface of the circular body 60, and the small ball 59 does not protrude from the bottomed hole 57a during the assembly process of the operation knob 50, the circular body 60, etc., and the workability is greatly improved. I do. Further, once the operation knob 50 is attached to the switch panel, the small hole 61d and the bottomed hole 57a do not communicate with each other.
9 is reliably prevented from jumping out.

Although the embodiment of the present invention has been described above, the rotation range of the operation knob 50 is not limited to the protrusion 50c.
Without being necessarily defined by the notch 55a of the bearing 55 and the notch 55a, for example, a concave groove of a predetermined length is provided in the distal end portion of the support shaft 50a in the direction around the axis, and the protruding portion protruding into the concave groove is formed. Provided on a plate 56 to determine its rotation range,
Further, the operation range of the lever or the like that is interlocked with the bevel gear 62a may be set to a predetermined range, and the rotation range of the operation knob 50 may be set.

The present invention is not limited to the rotary positioning device for the operation knob of the switch panel for an automobile, but can also be embodied as a rotary positioning device for another rotating body that rotates within a predetermined range.

[0041]

As described above, the rotary body rotation positioning device according to the present invention moves the circular body into the body small hole from the small hole before fixing the circular body to the support shaft of the rotary body. Inserting a spring and a small ball, and then rotating the circular body so that the two small holes are not communicated with each other, and fixing the circular body to a spindle of the rotating body at this rotational position. Therefore, the rotating body that rotates within a predetermined range in which the two small holes do not communicate with each other is reliably positioned by the click stop mechanism formed by the concave portion on the inner surface of the circular body and the small ball.

Since the assembly of the circular body, the spring and the small ball and the assembly of the rotating body can be performed separately, the assembling work is simplified, and the rotating body which is extremely advantageous for improving the working efficiency is provided. It becomes a rotary positioning device.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an example in which the present invention is applied to an operation knob of an automobile switch panel.

FIG. 2 is a simplified sectional view of the switch panel.

FIG. 3 is an enlarged sectional view of a part of the panel main body and a circular body attached to the panel main body.

FIG. 4 is an enlarged cross-sectional view showing a cross section of a part of the panel main body and a circular body assembled to the panel main body, showing a state where small balls and springs are assembled.

FIG. 5 is an enlarged cross-sectional view showing a part of the panel main body and a cross section of a circular body assembled to the panel main body, showing a state after the small balls and springs are assembled.

FIG. 6 is an enlarged sectional view similar to FIG. 5 shown as a conventional example.

[Explanation of symbols]

 Reference Signs List 50 operation knob 50a support shaft 50c projecting piece 54 panel main body 55 bearing portion 55a notch 57 projecting portion 57a bottomed hole 58 spring 59 small ball 60 circular body 61 annular portion 61c angled groove 61d small hole

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G05G 5/03

Claims (1)

(57) [Scope of request for utility model registration] 1. A circular body is fixed to a spindle of a rotating body attached to a body so as to rotate within a predetermined range, and a circular groove formed on an inner peripheral surface of the circular body is provided on the body. In the rotary positioning device that determines the rotation position of the rotating body by the click stop mechanism composed of the small ball protruding from the small hole with the spring force, the circular body can communicate with the small hole of the body
And insert the above-mentioned small ball and spring from outside of the circular body
Through the small hole of this circular body
Combine the small ball and spring inserted into the small hole of the
Rotate to make the small hole not communicated with the small hole of the body
Stopper, and at a position rotated the circular body, and fastening the circular body the support shaft of the rotating body, on the rotating body is a circle-shaped body and airframe
Serial rotational positioning device for a rotary body, characterized in that where the structure is positioned to rotate within a predetermined range that does not communicate with the stoma.