JPH017953Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a switch equipped with a moderation mechanism.

For this type of switch, for example, an operating rod is inserted through a housing-shaped main body frame so as to be rotatable around an axis.
A drive cam for transmitting the rotation operating force of the operating rod to the switch mechanism is rotatably attached to the insertion part of the operating rod into the main body frame, and there is a moderation between this drive cam and the main body frame. A device equipped with a mechanism is known. By the way, in the conventional moderation mechanism, for example, a moderation cam surface is formed on the outer periphery of the drive cam, and a circular transparent window is provided at a portion of the top wall of the main body frame corresponding to the moderation cam surface.
A spherical moderator is held within the transparent window so as to be movable toward and away from the moderation cam surface, and a plate spring bridges between spring mounting projections protruding from both sides of the transparent window of the main body frame. The moderator is elastically biased in the direction of the moderation cam surface.

However, when the moderator is made spherical, the moderator and the moderation cam surface come into point contact, so when the control rod is rotated to move the moderation cam surface relative to the moderator. , slippage is likely to occur between the moderation element and the moderation cam surface, and this sliding friction resistance is transmitted through the operating rod as an unpleasant sensation. Furthermore, if a pair of spring mounting protrusions are provided protruding from the upper surface of the main body frame, and the plate spring bridged between these protrusions is used to press the moderator, the number of parts will be large and the configuration will be complicated. Since the spacing between the protrusions is regulated by the width of the frame, etc., only relatively short leaf springs can be used. Therefore, as the moderator moves up and down, the pressing force of the leaf spring increases and decreases drastically, and, for example, when starting the operating rod, it is heavy, and moreover, a smooth moderation operation cannot be obtained. In other words, the conventional switch equipped with a moderation mechanism has the disadvantage that it is difficult to obtain a light and crisp operating feel.

The present invention was developed in view of these circumstances, and the moderator is made into a roller shape, and the moderator is elastically biased in the direction of the moderation cam surface using an auxiliary frame that constitutes the main body frame together with the main frame. It is an object of the present invention to provide a switch which has a simple structure and is easy to assemble, and which can provide a light and crisp operating feel.

In order to achieve the above object, the present invention has a main frame composed of a main frame and an auxiliary frame,
This switch has an operating rod inserted through the main frame, and includes a driven operating member provided in the main frame and displaced to each switch position by operation of the operating lever, and a moderation cam provided on the driven operating member. a roller-shaped moderator that is in rolling contact with the moderation cam surface, and a direction in which the moderation element is provided on the main frame side and is rotatable around an axis and moves toward and away from the moderation cam surface. The auxiliary frame is comprised of an elastic plate, one end of which is supported by the main frame, and the other end of which extends toward the moderator. A moderator that responds along the moderation cam surface on the other end side is elastically biased toward the moderation cam surface in a responsive manner.

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

The one shown in FIGS. 1 to 3 is an example of the rotary slide switch of the present invention applied to the operating lever, in which a cylindrical bearing metal 2 is protruded from the front wall of a housing-shaped main body frame 1. The operating rod 3 is inserted into the bearing metal 2 so as to be rotatable around the axis.
A stopper ring 4 is inserted into the insertion part of the main body frame 1.
A drive cam 5, which is a driven operation member, is also installed.

The main body frame 1 consists of a U-shaped main frame 6 with openings at the rear half of the upper surface, the rear surface, and the bottom surface, and an auxiliary frame 7 that closes the rear half of the upper surface and the rear surface of the main frame 6. is equipped with a slide switch mechanism (not shown).

The operating rod 3 is a shaft-shaped member having a knob mounting portion 3a at the front end and a rotating force transmitting portion 3b having a non-circular square cross section at the rear end.
A locking collar 3c is provided protruding from the rear of the knob mounting portion 3a to abut against the front end surface of the bearing metal 2 to restrict rearward movement of the operating rod 3.

The stopper ring 4 has a locking surface 11 formed integrally with the stopper ring main body 8 and a locking surface 12 formed on a drive cam 5, which will be described later, on the outer periphery of the stopper ring main body 8. When rotated in the direction of arrow X, one of the locking surfaces 11 comes into contact with the fixed stopper 9 protruding inside the main frame 6, and when rotated in the direction of arrow Y, the other locking surface 11 contacts The surface 12 is adapted to abut against the fixed stop 9. The stopper ring body 8 has a C-shaped outer ring portion 8 having a notch 8a.
b, and a pair of arm pieces 8c, 8c protruding toward the center from the cutout portion of the outer ring portion 8b, and these arm pieces 8C, 8c
A shaft hole 8d through which the operating rod 3 passes is formed between them. The stopper ring body 8 is attached to the operating rod 3 by providing recesses 13, 13 at the base end of the rotating force transmitting portion 3b of the operating lever 3, and by sharpening the tip of the rotating force transmitting portion 3b. The shaft hole 8 of the stopper ring body 8 arranged in the
d, insert the main body frame 1 through the bearing metal 2.
The rotating force transmitting portion 3b of the operating rod 3 inserted therein is press-fitted, and the arm pieces 8c, 8c of the stopper ring body 8 are engaged with the recesses 13, 13 of the operating rod 3 using elastic deformation. There is.

Note that one locking surface 1 of this stopper ring 4
1 is formed on one side edge of a claw piece 14 integrally protruding from the outer peripheral edge of the stopper ring body 8,
The other locking surface 12 of the stopper ring 4 is formed on the front end surface of a drive cam 5, which will be described later.

The drive cam 5 is cylindrical and has a shaft hole 5a in its center that corresponds to the cross-sectional shape of the rotational force transmitting portion 3b of the operating rod 3. The transmission portion 3b is fitted in such a manner that it cannot rotate relative to each other. A spiral protrusion 5c is integrally formed on the outer peripheral surface of the drive cam 5 for sliding a clip holder (not shown) of the slide switch mechanism in the front and back direction. Further, on the front end surface of the drive cam 5, a semicircular arc-shaped outer wall 5d is formed to protrude in the axial direction so as to enclose half of the outer peripheral edge of the stopper ring body 8.
and inner walls 5e, 5e that fit between the outer ring portion 8b and the arm portions 8c, 8c of the stopper ring main body 8,
A positioning protrusion 5 that fits between the arm pieces 8c and 8c of the stopper ring main body 8 and into the notch 8a, respectively.
A stopper ring body 8 is attached to the front end surface of the drive cam 5 by means of the outer wall 5d, inner walls 5e, 5e, and positioning protrusions 5f, 5f, 5g. is held so that it can rotate together with the drive cam 5. One end of the outer wall 5d of the drive cam 5 when viewed in the circumferential direction contacts and supports the claw piece 14 having one of the locking surfaces 11 of the stopper ring 4, and the other end when viewed in the circumferential direction of the outer wall 5d. The other locking surface 12 is formed at the end.

Further, a moderation mechanism 15 is provided between the drive cam 5 and the main body frame 1. The moderation mechanism 15 includes a moderation cam surface 16 provided on the outer periphery of the front end of the drive cam 5, and a transparent window 6b bored in a portion of the top wall 6a of the main frame 6 corresponding to the moderation cam surface 16. The moderator 17 disposed in the window 6b is elastically biased in the direction of the moderation cam surface 16 by the auxiliary frame 7 that constitutes the main body frame 1 together with the main frame 6. More specifically, the moderation cam surface 16 has a plurality of troughs 16a and a plurality of peaks 16b arranged alternately in the circumferential direction of the drive cam 5, and the moderation cam surface 16 has a plurality of troughs 16a and a plurality of peaks 16b arranged alternately in the circumferential direction of the drive cam 5. When the main frame 6 is displaced, one of the troughs 16a faces the transparent window 6b of the main frame 6. The moderator 17 has roller-shaped rolling portions 17b protruding from the vicinity of both ends of the shaft portion 17a, and is made of the same material as the drive cam 5.
For example, it is integrally molded using Jiracon or the like. This moderator 17 has a shaft portion 17a.
Both end portions 17c, 17c of the transparent window 6b are engaged with bifurcated holding members 18, 18 provided upright at both the front and rear edges of the transparent window 6b so as to be movable in the vertical direction, that is, relative to the moderation cam surface 16. It is held so that it can move in the direction of approaching and separating. The auxiliary frame 7 is made by folding an elastic plate such as a stainless steel plate in half at right angles.
One end thereof is fixed to the main frame 6 using a bent piece 6c protruding from the rear opening edge of the main frame 6. The other end of the auxiliary frame 7 is extended above the moderator 17, and the pressing piece 7a formed on the other end edge of the auxiliary frame 7 is attached to the outer periphery of the shaft portion 17a of the moderator 17. The auxiliary frame 7 is brought into contact with the central part of the surface, and uses the elasticity of the auxiliary frame 7 itself to elastically bias the moderation element 17 that responds along the moderation cam surface 16 in the direction of the moderation cam surface. There is. The pressing piece 7a is formed between the other end 7b of the auxiliary frame 7 and a through hole 7c bored in the vicinity of the other end of the auxiliary frame 7. Frame 7 and rolling portion 17b of the moderator 17
Avoiding contact with. Note that the moderator 17
The shaft portion 17a is formed in such a shape that its central portion has a larger diameter than the other portions, and the shaft portion 17a and the pressing piece 7a of the auxiliary frame 7 are in contact with each other at one point. It's getting old.

According to the configuration of the present invention, the moderator 17
is in the form of a roller and is brought into linear contact with the moderating cam surface 16, so that when the operating rod 3 is rotated to move the moderating cam surface 16 relative to the moderating element 17. , this moderator 17 rolls on the moderation cam surface 16, and the moderator 17 rolls on the moderation cam surface 16.
It is difficult for slippage to occur between the cam surface 16 and the moderation cam surface 16. Therefore, there is no inconvenience that the sliding friction resistance is transmitted through the operating rod 3 as an unpleasant feeling. Further, the main frame 1 is configured together with the main frame 6, and the other end side of the auxiliary frame 7 made of an elastic plate whose one end side is supported by the main frame 6 extends toward the moderator 17 side. Since the moderator 17 that responds along the moderation cam surface 16 is elastically biased in the direction of the moderation cam surface 16, no special spring is required, and the number of parts is small and the configuration is simple. At the same time, assembly is also greatly facilitated. Moreover, since it is easy to make the auxiliary frame 7 much longer than a conventional leaf spring, it is equivalent to using a leaf spring with a very small spring constant. The pressing force of the auxiliary frame 7 against the moderator 17 is
There is no drastic increase or decrease with the vertical movement of 7. Therefore, when the moderator 17 rides up from the trough 16a to the peak 16b of the moderation cam surface 16, the pressing force against the moderator 17 increases rapidly, making the operation of the operating rod 3 feel heavy. There is no problem such as when the moderator 17 falls from the peak 16b of the moderation cam surface 16 to the valley 16a, the pressing force applied to the moderator 17 is drastically reduced and the moderator 17 is not clearly stopped at a fixed position. Therefore, there is an advantage that a light and crisp operation feeling can be obtained.

In the above embodiment, a case was explained in which a circumferential moderation cam surface was provided on a rotating driven operating member, but it goes without saying that the present invention is not limited to this type of moderation cam surface, for example. A flat moderation cam surface may be provided on the sliding driven operating member.

Further, the moderator is not limited to the one with the above configuration, and may be of other types, such as a single-wheel type with a single rolling part protruding from the shaft, or a moderator with three or more rolling parts on the shaft. It may also be a multi-ring type with protruding parts.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the present invention, in which FIG. 1 is a perspective view showing the whole, FIG. 2 is a sectional view of the same side, and FIG. FIG. 3 is a cross-sectional view with the main body frame omitted. 1... Body frame, 3... Operating rod, 5... Drive cam (driven operating member), 6... Main frame,
7... Auxiliary frame, 7a pressing piece, 15... Moderation mechanism, 16... Moderation cam, 17... Moderator, 18
...Holding member.

Claims (1)

[Scope of utility model registration request] A switch in which a main frame is composed of a main frame and an auxiliary frame, and an operating rod is inserted through the main frame, and the driven operation is provided in the main frame and is moved to each switch position by operating the operating rod. a moderation cam surface provided on the driven operating member, a roller-shaped moderator that is in rolling contact with the moderation cam surface, and a moderator provided on the main frame side that allows the moderator to rotate around an axis. and a holding member that is movably held in a direction toward and away from the moderation cam surface, and the auxiliary frame is made of an elastic plate, one end of which is supported by the main frame, and the other end of the auxiliary frame is supported by the main frame. 1. A switch characterized in that one end of the switch extends toward the moderation element, and the other end of the switch has a moderation element that responds along the moderation cam surface and is elastically biased in the direction of the moderation cam surface.