JPS58133719A - Rotary switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] When using a device that is operated while being held and energized, the present invention can perform a torpedo operation by rotationally moving a switch to a desired position depending on the situation in which the device is being held. This relates to a rotary switch.

Conventionally, most of the switches of devices that are operated while being held while being energized are fixed near the gripping part of the device, but devices whose switches can be removed in this way, for example, If the device has a directional operation, such as an ultrasonic vibration generator for dental porcelain that has a curved vibrator attached, the switch is not necessarily easy to operate with a fingertip when the device is held in the optimal state for operation. Since the switch is not in the correct position, it is very difficult to turn on the current, and as a result, if the switch is operated forcefully, the device may come off from the optimum direction or position, disrupting the operation. The present inventors completed the present invention as a result of research aimed at providing a switch free of such drawbacks.

That is, the present invention provides a switch piece made of a non-conductive flexible body with a conductive flexible plate-like body attached inside the switch piece, and a cutout part where a part of the cylindrical wall is cut out. a rotary collar consisting of a cylindrical body with a cut-out part having a retaining part for holding the rotary collar, and a cylinder having a groove part at one end for slidably holding the end of the rotary collar and fixed to the main body on the opposite side from the groove part. It is a shaped body, and on its outer circumferential surface, contacts are arranged over almost the entire circumference at sufficiently narrow intervals compared to the conductive flexible plate-like body of the switch piece, and the rotary collar is in contact with the contacts. The present invention relates to a rotary switch characterized by comprising a switch housing that can be rotated with a small gap maintained therebetween.

D) Attach books i5 L and II to F with the rotary switch according to the present invention.
This will be explained in detail with reference to the drawings showing an embodiment of the invention.

Figures 1 and 2 show the switch piece, Figures 3 and 1 show the rotary collar, and Figures 5 and 6 show the rotor 11.
- Perspective views showing the omitted main body with the switch piece held in the collar shown diagonally to the right and diagonally to the left, No. 11
15 to 15 show an embodiment of a switch piece different from the switch pieces shown in FIGS. 3 and 4, and FIG. 11 is a plan view;
12 is a sectional view taken along the line A-AM in FIG. 11, FIG. 13 is a bottom view, and FIG. 14 is a side view.

FIG. 15 is a cross-sectional view taken along the line B-B in FIG. 12, and FIG. 16 is a diagram showing an example of contacts arranged in a different manner from the contacts arranged on the rotary collar shown in FIGS. 7 and 8. Figure 17 is the first
FIG. 9 is an explanatory cross-sectional view showing an example of a device using a rotary switch made of the members shown in FIGS.

In the drawing, 1 is a non-conductive flexible body, which is a rubber body.

Plastic or the like is used, and a conductive flexible plate-like body 2 is fixed to the inside thereof to form a switch piece 3.

As the conductive flexible plate-like body 2, a metal plate such as a thin aluminum plate or a copper plate is generally used, but a conductive rubber plate may also be used. It is convenient to use adhesive for fixing, but it is also possible to use integral molding. In FIGS. 1 and 2, the non-conductive flexible body 1 has a substantially uniform thickness 11 except for the peripheral edge 1b, and a thin conductive flexible plate 2 is inside the non-conductive flexible body 11.
However, when the switch piece 3 acts as a switch piece 3, i.e., when pressed with a finger, the central part bends inward, making it easier for the conductive flexible plate-like body 2 to come into contact with a contact point 8, which will be described later. For this purpose, as shown in FIGS. 11 to 15, grooves 1a are provided on the four inner peripheries of the non-conductive flexible body 1, and a conductive flexible plate-shaped groove is provided in the portion surrounded by gla. A switch piece 3 to which the body 2 is fixed is preferred. By providing such a groove 1a, the flexibility of the non-conductive flexible body 1 is increased, and therefore it is possible to use a thicker and stronger conductive flexible plate-like body 2. In addition, as shown in FIG. 12, by increasing the thickness of the peripheral edge 1b of the non-conductive flexible body 1, the conductive flexible plate body 2 is moved away from the contact point 8, thereby preventing careless erroneous operation. It is possible to eliminate it. Reference numeral 4 denotes a rotary collar, and the cut-out portion of the cylindrical body is a part of the cylindrical wall of the cylindrical body. This cutout has a shape corresponding to the shape of the switch piece 3, and has an engaging part 4a so that the switch piece 3 is fitted into and held in the cutout. Although Figures 3 and 4 show the case where the cylindrical body is cut to one edge, it is not necessary to do so, and the cylindrical body is cut leaving both edges. It may be something that has been done. In addition to the illustrated example, the engaging portion 4a may be a groove or the like having a depth that allows engagement and removal of the switch piece 3 by utilizing its flexibility, for example. The switch piece 3 is engaged with the engagement part 4a of the rotary collar 4, and the fifth
The rotating body 5 shown in FIG. 6 and FIG. 6 is constructed. If the switch piece 3 is made to protrude slightly from the outer circumferential surface of the rotating body 5 when the rotating body 5 is configured in this way, the switch piece 3
This is preferable because the position of the rotor can be easily determined and the rotating body can rotate 50 times easily. It is a 6-switch switch housing and has a cylindrical shape, and one end thereof has an end 4b of a rotary collar 4 (in this embodiment, the switch piece 3 is added to form the end of the rotating body 5). It has a groove portion 7 for slidably holding the. In FIG. 7, the groove 7 is provided on the inner wall of a 7 flange-shaped body that is integrally provided with the switch housing 6 as the device head, but the 7 flange-shaped body with the groove 7 is separately formed 1- in the switch housing. It may be attached to 6.

8rl'i A contact provided on the outer circumferential surface of the cylindrical body of the switch housing 6, and the contact 8 on the path side contacts the switch piece 3 when the rotating body 5 is installed at a predetermined position as described below. They are arranged at positions corresponding to the conductive flexible plate-shaped body 2 at sufficiently narrow intervals compared to the size thereof, and are arranged over almost the entire circumference of the outer peripheral surface, and are in contact with the lead wires at the edges! *It has part 9.

Although FIGS. 7 and 8 show the simplest case consisting of two lines, it is preferable to use a configuration consisting of a large number of lines as shown in FIG. 16, for example, in order to ensure reliable switch operation. . The contact 8 may be attached directly to the outer circumferential surface of the switch housing 6 by adhesive, etc. However, in particular, when the contact 8 is made of a large number of wires as shown in FIG. This may be attached to the outer peripheral surface of the switch housing 6 by means such as adhesive or pins. The outer diameter of the cylindrical body and the position of the groove 7 of the switch housing 6 are determined so that when the rotating body 5 is inserted, the rotary collar 4 can be rotated with a small gap between it and the contact 8. As shown in FIG. 5, the end of the rotor IJ + collar 4, which is opposite to the end that slides on the groove 7, is made to rotate the rotor 5 from its inner circumferential surface. A slightly protruding sliding portion 11 is also provided, and in order to prevent damage to the neck of the contact 8 that reaches the connection portion 9 with the lead wire due to the sliding of the sliding portion 11, as shown in FIGS. As shown in the figure, a sliding portion 12 is provided at a position on the outer peripheral surface of the switch housing 6 that corresponds to the sliding portion 11. Unlike the illustrated embodiment, if the neck of the contact 8 is provided inside the switch housing 6 together with the lead wire connection part 9, the sliding part 12 of the switch housing 6 can be eliminated, and the sliding part of the rotary collar 4 can be made higher by that amount. Moving part 11
It can only be done. 13 is a main body, and the switch housing 6 is fixed to this main body 13 on the side opposite to the groove portion 7.

This fixing can be done in conventional manner, for example directly or via spacers, or in various ways, such as by using screws or pins. In this embodiment, a hole 14 is provided in the switch housing 6, and a screw hole 15 is provided in the switch house synchronizer, and a screw hole 16 is used to fix the holes 14 and 15 in place. As shown in FIG. 10, at one end of the main body 13, there is a fitting part that allows only the sliding part 11 of the rotary collar 4 to be fitted into the sliding part (I). +38, so when the switch-how song 6 extrapolates the rotating body 5 and is fixed to the main body 1, the rotating body 5 is positioned at a predetermined position and can freely rotate. becomes.

Instead of the fixed wall 13a for positioning in this way, a slot may be provided at the corresponding position. The lead wire 17 is connected to the lead wire connection portion 9 of the switch housing 6 through a lead wire groove 18 provided in the peripheral wall of the main body 1:1.
This introduction route is freely selected.

The rotary switch according to the present invention is obtained by assembling each member according to the above explanation. Figure 17 is a tree climbing t.
As an example of a device using a rotary switch according to the above, the rotating body 5 of a rotary switch of an ultrasonic vibration generator for dental porcelain is rotated to position the switch piece 3 on the extension line of the lead wire groove 18. It is an explanatory sectional view. The vibrator 19 housed in the main body 13 is energized by pressing the switch piece 3 and bringing the conductive flexible plate-like body 2 into contact with the two contacts 8, which activates the main switch outside the machine and generates vibration. The vibrations generated by the element 19 are transmitted to the condensing tip protruding forward of the switch housing 6. If the condensing tip f20 is curved and the effect of imparting vibration at the tip to the abutting object differs depending on the direction, it is necessary to set the device in an appropriate state, that is, to bring the tip of the condensing tip into contact with the object at a predetermined angle. After gripping it, the rotating body 5 is rotated to position the switch piece 3 at a position where it can be easily operated with a fingertip. In this usage example, the switch piece 3 is used to operate the main switch, but depending on the required current, it may be wired to directly supply electricity to the target object.

In the rotary switch according to the present invention, the contact 8 is fixed to the outer peripheral surface of the cylinder, and the switch piece 3 is made of a flexible body so that it can be freely rotated around the contact 8 and pressed at any position to short-circuit the contact 8. This structure is valuable because it allows easy rotational movement to a desired position in any gripping state of the device, facilitating the energizing operation.

[Brief explanation of the drawing]

Figures 1 and 2 show the switch piece, Figures 3 and 4 the rotary collar, Figures 5 and 6 the rotary collar holding the switch piece, and Figures 7 and 8. The figure shows the switch housing, and Figures 9 and 10 are perspective views showing the main body from the diagonally right side and the diagonally left side, respectively, with a part omitted on the side opposite to the rotating body mounting side, and Figures 11 to 15.
The figures show an embodiment of a switch piece different from the switch pieces shown in Figs. 3 and 4. Fig. 11 is a plan view, Fig. 12 is a sectional view taken along the line A-A in Fig. 11, and Fig. 13 is a cross-sectional view taken along line A-A in Fig. 11. Bottom view, No. 14
The figure is a side view, FIG. 15 is a cross-sectional view taken along the line B'-B in FIG. A diagram showing an example,
FIG. 17 is an explanatory cross section 1 showing an example of a device using a rotary switch made of the members shown in FIGS. 1 to 8. Non-conductive flexible body 1a. Groove 1b. Periphery. 2... Conductive flexible plate-shaped body 3... Switch piece 4... Rotary collar 4a... Engaging portion 4b... End portion 5... Rotating body 6... Switch housing 7 ...Groove section 8...Contact point 9...Lead wire connection section 10...Non-conductive sheet 11...Sliding section 12...Sliding section 13...Body 13a...Fixed wall 14... Stupid hole 15... Screw hole 16... Machine screw 17... Lead wire 18... Lead wire groove 19... Vibrator 20... Condensation structure f.

Claims (1)

[Claims] 1 Among them [! li K A switch piece made of a non-conductive flexible body to which a conductive flexible plate-like body is fixed, and an engaging part that holds the switch piece in a cutout part where a part of the cylinder wall is removed. a rotary collar consisting of a cylindrical body with a cutout part; and a cylindrical body fixed to the main body on the opposite side from the groove part; On its outer peripheral surface, contacts are arranged almost all around the circumference (16), which is sufficiently narrow compared to the 1,000 pieces of conductive flexible plate-like material, and the rotary collar connects with the contacts. A rotary switch characterized in that it consists of a switch and a switch that can be rotated with a gap of f14+ maintained between the two. 2. The rotary switch according to claim 1, wherein a conductive flexible plate-like member is fixed within the portion t' surrounded by the groove.