JPH0614431B2 - Operation knob device such as record player - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an operation knob device in a record player or the like.

2. Description of the Related Art In recent years, operation knob devices for record players, etc.
It is desired to simplify the mechanism in order to reduce the thickness of cabinets such as record players and reduce the number of steps in the assembly process.

Hereinafter, an example of the conventional operation knob device such as the above-described record player will be described with reference to the drawings.

FIG. 5 shows the structure of a conventional operation knob device for a record player. In FIG. 5, reference numeral 1 is a cabinet. 2 is an operation knob and slides to the left and right. 3 is a leaf spring and 4 is a ball. As shown in FIG. 5, each component is assembled, and a metal plate holding plate 5 as shown in FIG. 6 is screwed to the boss 1a of the cabinet 1 with the operating knob 2,
The leaf spring 3 and the ball 4 are pressed down.

The operation of the operation knob device such as the record player having the above-described configuration will be described below.

First, when the operation knob 2 is slid, the pressing plate 5
The ball 4 is disengaged from the slit 5a and the leaf spring 3 is bent, so that a click at the time of starting the operation of the operation knob 2 can be obtained. Next, when the operation knob 2 finishes sliding the stroke defined by the slits 5a and 5b of the pressing plate 5, the ball 4 fits into the slit 5b of the pressing plate 5 and the deflection of the plate spring 3 returns to its original position, so that the operation knob 2 You can get the click at the end of the action.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above configuration, since the leaf spring 3 is inserted into the operation knob 2 and the ball 4 is placed between the slit 2a of the operation knob 2 and the cabinet 1, When the front and rear positions are not fixed and the ball 4 rolls out to the cabinet 1 side, it becomes difficult to match the position of the ball 4 with the slit 5a or 5b of the holding plate 5 when the holding plate 5 is placed, It had a problem that it was very difficult to assemble.

In view of the above problems, the present invention provides an operation knob device such as a record player that simplifies the structure of the operation mechanism and facilitates the assembly process.

Means for Solving the Problems In order to solve the above problems, according to the present invention, an operating knob device such as a record player is provided with a plurality of slits on a standing wall of the outer shape of the operating knob and a convex portion at one end of the slit. The ball is rotatably held between the rib and the notch provided in the cabinet, and the operation knob is clicked with the leaf spring attached to the cabinet rib.

Operation The present invention has the above-described structure, and when the leaf spring and the ball are inserted by aligning the slit provided on the outer shape of the operation knob with the slit provided on the rib of the cabinet, when attaching the holding plate, It is possible to eliminate the need for difficult positioning.

Embodiment Hereinafter, an operation control device such as a record player according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows an operating knob device such as a record player according to an embodiment of the present invention. In FIG.
11 is a cabinet. Reference numeral 12 is an operation knob, which slides left and right. Reference numeral 13 is a leaf spring, 14 is a ball, and 15 is a holding plate. 5 is different from the configuration of the conventional example shown in FIG. That the cabinet 11 is provided with a rib 11a having a notch for holding balls, and the leaf spring 13 is provided in the cabinet 11 instead of being attached to the operation knob 12 as in the conventional example. The point is that they are fixed by the ribs 11a and 11b. As shown in FIG. 2, the presser plate 1 as shown in FIG.
The screw 5 is screwed to the boss 11c of the cabinet 11, and the operation knob 12, the leaf spring 13, and the ball 14 are pressed.

The operation of the operation mechanism of the record player or the like configured as described above will be described below with reference to FIGS. 1 and 2.

First, when the operation knob 12 is slid, the ball 14 is disengaged from the slit 12a of the operation knob 12, and the leaf spring 13 is bent to obtain a click at the start of the operation of the operation knob 12. Next, when the operation knob 12 finishes sliding the stroke defined by the slits 12 a and 12 b provided on the standing wall of the outer shape of the operation knob 12, the ball 14 moves the slit 14 of the operation knob 12.
It is possible to obtain a click at the end of the operation of the operation knob 12 by fitting in b and returning the deflection of the leaf spring 13 to the original.

As described above, according to the present embodiment, the leaf spring 13 is fixed by the ribs 11a and 11b of the cabinet 11, the slits 12a and 12b are provided on the outer wall of the outer shape of the operation knob 12, and the convex portions 12c and 12d are provided at one ends of the slits. By holding the ball 14 rotatably, it becomes possible to change the shape of the holding plate 15 from a complicated shape as shown in FIG. 6 to a simple shape as shown in FIG. Cabinet made of resin flat plate from sheet metal parts including
It is also easy to use co-fabricated parts, which can greatly contribute to the reduction of parts and mold costs. Also, the holding plate 15
By simplifying the above, it is not necessary to align the slits 5a and 5b of the pressing plate 5 with the position of the ball 4 in the assembly process as in the conventional example, and the slit 12 of the operation knob 12 is
Since the protrusions 12c and 12d provided at one end of a and 12b prevent the balls 14 from jumping out, the pressing plate 15 can be simply put on and screwed to the boss 11c of the cabinet 11. It can contribute to reduction of man-hours.

A second embodiment of the present invention will be described below with reference to the drawings.

FIG. 4 shows an operating knob device for a record player or the like showing a second embodiment of the present invention. In the figure,
Reference numeral 41 is a cabinet, 42 is an operation knob, 43 is a leaf spring, and 44 is a ball. The above is the same as the configuration of FIG. The difference from the configuration of FIG. 2 is that slits 42a, 42b, 42 provided on the vertical wall of the outer shape of the operation knob 42 are provided.
It is a point that there are 3 places with c.

The operation of the operation knob device such as the record player having the above-described structure will be described below.

Slits 42a, 42 on the outer wall of the operating knob 42
b, 42c, the ball 44, and the deflection of the leaf spring 43, the operation of obtaining the click at the start and end of the sliding operation of the operation knob 42 is the same as that of the first embodiment, but the operation knob 42 is slit. 42a, 42b, 42
By providing 3 places with c, between 42a and 42b,
Two types of strokes between b and 42c can be obtained with one operation knob 42.

As described above, by providing several slits in the vertical wall of the outer shape of the operation knob, several kinds of strokes can be obtained with one operation knob. If the appearance is the same, there are slight differences in stroke. This eliminates the need to use separate operation knobs, which can contribute to the reduction of parts and mold costs.

As described above, the present invention has a plurality of slits on the standing wall of the outer shape and an operation knob provided with a pair of convex portions at one end of the slit,
By holding the ball rotatably between the leaf spring placed on the rib provided on the cabinet and the rib having the notch provided on the cabinet, it is possible to reduce the parts cost and the die cost. This can contribute to a reduction in the number of steps in the assembly process.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention, and FIG.
FIG. 1 is a top view showing a first embodiment of the present invention, FIG. 3 is a perspective view of a holding plate according to the present invention, FIG. 4 is a top view showing a second embodiment of the present invention, and FIG. Top view showing an example, No. 6
The figure is a perspective view of a pressing plate in a conventional example. 1, 11, 41 ... Cabinet, 2, 12, 42 ...
Operation knobs, 3, 13, 43 ... Leaf springs, 4, 14, 4
4 ... Ball, 5,15 ... Presser plate.

Claims (1)

[Claims] 1. An operating knob having a plurality of slits on the outer wall of the outer shape and a pair of convex portions at one end of the slits, a leaf spring placed on a rib provided on the cabinet, and a notch provided on the cabinet. An operation knob device for a record player or the like, which holds a ball so as to rotate freely between the rib and the rib.