JPH0342765Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] The present invention relates to a volume knob structure, and particularly to a volume knob structure suitable for a volume control volume of a telephone or the like.

[Background of the idea]

In recent years, telephones have been equipped with a volume knob that can be operated from the outside of the telephone casing in order to adjust the volume of a call. Figures 1 and 2
The figure shows the mounting structure of the volume knob.
Figure 1 is a partial perspective view of the casing showing the mounting structure, Figure 2
The figure is a sectional view thereof. As shown, the housing 1
A notch 11a for attaching the rotary knob 12 of the volume control volume is provided in a part of the side end of the housing 1, and the side part of the rotary knob 12 is connected to the housing 1 from the notch 11a.
Attach it so that it protrudes from the outside of 1. Rotary knob 1
Press the side of 2 with your finger and rotate it left and right to adjust the volume.

The above-mentioned conventional volume knob structure has a drawback in that the volume can be mounted only in a limited position on the housing. In other words, the plane of the board on which the volume is mounted and the plane of the rotary knob 12 must be parallel; for example, the rotary knob 12 must be parallel to A in FIG.
In order to attach it to the inclined edge of the case as shown in FIG. 2, the volume mounting board must also be inclined to match the inclined surface of the rotary knob. Therefore, there are disadvantages such as the number of parts to be attached to the volume increases and the attachment work becomes difficult. Furthermore, since a gap remains between the rotary knob 12 and the notch 11a, dust can enter the housing 11 through the gap, which is particularly inconvenient in recent high-performance electronic button telephones. be. Furthermore, the rotary knob protrudes far beyond the side of the housing, which is not a desirable design.

[Purpose of invention]

The present invention has been made in view of the above points, and an object of the present invention is to provide a volume knob structure that is not restricted by the mounting location of the volume and is suitable for maintaining confidentiality within the housing.

[Summary of the idea]

The main points of the present invention include a volume having a slider that slides in a linear direction, a drive member that moves the slider, and a drive member that moves the drive member at a certain inclination angle with respect to the sliding direction of the slider. The drive member includes an engaging part that engages with the slider, a sliding part that slides on the guide member, and a connection that connects the engaging part and the sliding part. The parts are integrally formed,
Further, the connecting portion is formed to be deflected to absorb a gap generated between the engaging portion and the slider due to movement of the driving member.

[Example of idea]

Hereinafter, embodiments of the present invention will be described based on the drawings. FIG. 3 is a side view of a telephone having a volume knob structure according to the present invention. In recent years, desk-type electronic button telephones have become more sophisticated and smaller.As shown in the figure, various buttons 22 and various electronic components are attached to a thin case 21 that is high in the center and low in the front and back, and also has a handset and receiver. 23 is placed. In the case 21 of such an electronic button telephone, the heights h1 and h of the rear end and front end of the case 21 are
2 is small, so it is difficult to attach a conventional rotary volume as shown in FIGS. 1 and 2 here, and the rotary knob protrudes largely from the housing, which is unsightly. Therefore, in the present invention, a volume is attached to a part of the case side end where the case edge is inclined (a part surrounded by a dot-dash line circle A in the figure). FIG. 4 is an enlarged view of part A in FIG. 3, and as shown, an elongated notch 21b is provided in the inclined edge of the housing 21, and the knob 24 of the volume is slightly inserted into the notch 21b. The knob portion 24 is provided in a protruding manner so that the knob portion 24 can be moved left and right as shown by arrow B. Fig. 5 is a plan view of the volume knob structure, Fig. 6 is a side view, and Fig. 7 is an arrow C in Fig. 5.
It is a front view seen from the direction. In the figure, reference numeral 25 denotes a volume such as a variable resistor having a slider 28 that slides in a linear direction, and the volume 25 is mounted on a printed circuit board 27 provided at the bottom of the casing 21.
29 is a driving member for moving the slider 28 left and right in the direction of arrow D, and the driving member 29 is
The engaging part 30, the connecting part 31, and the sliding part 32 are integrally formed. The engaging portion 30 has an inverted triangular shape, and has a slider 28 at its tip.
A hole is provided into which the tip of the tube is inserted. The connecting portion 31 connects the engaging portion 30 and the sliding portion 32, and a notch portion 31a is provided in a portion close to the engaging portion 30 so that the wall thickness is reduced. The sliding portion 32 is a rectangular plate and is configured to be able to slide on a guide surface 21a provided at the edge of the housing 21 and along a groove 33a provided in the lid 33. Further, a knob portion 24 is integrally provided on the outside of the sliding portion 32. These engaging portions 30, connecting portions 31, and sliding portions 32 are made of a flexible resin material such as plastic.

In the above structure, when the knob 24 is pressed with a finger and the drive member 29 is moved from the position shown by the solid line in FIG. 7 to the position shown by the dotted line as shown by arrow E, the height of the casing 21 becomes smaller. As it progresses,
The engaging portion 30 is pushed up by the slider 28. This upward stress is applied to the notch 3 of the connecting portion 31.
The stress is absorbed by the portion where the wall thickness becomes thinner due to 1a (the pushing stress is absorbed by deforming as shown by the dotted line in FIG. 6). Further, in the above embodiment, the upward stress of the slider 28 is absorbed only by the thin portion of the connecting portion 31, but the hole for inserting the slider provided at the tip of the engaging portion 30 is It is also possible to adopt a structure in which the stroke is made slightly larger and the pushing stress is absorbed in accordance with the movement of the tip of the slider 28 up and down in the hole and the vertical deformation of the connecting portion 31.

As explained above, according to the above embodiment, smooth volume adjustment is possible even if the volume operation knob 24 is attached to the inclined surface of the housing 21, and the sliding part 32 is connected to the long groove 33a of the lid 33. Since it moves along the edge guide surface 21c of the casing 21 and closes the notch 21b of the casing 21, dust and the like will not enter into the casing. Further, since the knob portion 24 only slightly protrudes from the side surface of the housing 21, the design is extremely excellent.

In the above embodiments, the case of a telephone was used as an example, but the structure of the volume knob as described above is not limited to this. It can be installed in any part. Further, although a variable resistor is shown as an example of the volume, it is not limited to this.

Further, in the above embodiment, the notch 3 is provided in the connecting portion 31.
Although the connecting portion 31 is deformed by providing the cutout portion 31a, it is not necessary to provide the notch portion 31a, as long as the connecting member has a structure that can be flexibly deformed and absorb upward stress. Furthermore, as shown in the figure, the engaging part 30, the connecting part 31, and the sliding part 32 do not need to have clearly separated shapes; 28
It is sufficient if the structure moves in conjunction with each other, and the connecting part 31 can absorb the pushing stress due to the vertical displacement of the engaging part 30.

[Effect of idea]

As explained above, the volume knob structure according to the present invention allows the volume to be adjusted smoothly even when the moving direction of the slider of the volume differs from the moving direction of the slider and the driving member. It has an extremely excellent effect in that it can be achieved while maintaining the

[Brief explanation of the drawing]

1 and 2 are diagrams showing a conventional volume knob structure, where FIG. 1 is a partial perspective view, FIG. 2 is a sectional view thereof, and FIG. 3 is an electronic button having a volume knob structure according to the present invention. A side view showing an example of a type telephone; FIG. 4 is a partially enlarged sectional view of FIG. 3; FIGS.
7 is a diagram showing the volume knob structure according to the present invention, FIG. 5 is a plan view, FIG. 6 is a side view, and FIG. 7 is a front view seen from the direction of arrow C in FIG. 5. In the figure, 21... Housing, 24... Knob part, 25
... Volume, 27 ... Printed circuit board, 28 ...
Slider, 30... Engaging portion, 31... Connecting portion, 32
...Sliding part, 33...Lid.

Claims (1)

[Scope of utility model registration request] A volume having a slider that slides in a linear direction, a drive member that moves the slider, and a guide member that guides the drive member at a certain inclination angle with respect to the sliding direction of the slider. The driving member includes an engaging part that engages with the slider, a sliding part that slides on the guide member, and a connecting part that connects the engaging part and the sliding part. 1. A volume knob structure, wherein the connecting portion is formed to be deflected to absorb a gap generated between the engaging portion and the slider due to movement of the driving member.