KR910003389Y1 - Switch operating device - Google Patents

Abstract

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Description

Switch actuator

1 to 3 show one embodiment of the present invention, Figure 1 is a plan view showing a non-operational state of the switch operating device of the present invention.

2 is a plan view showing the operating state.

3 and 4 are perspective views of different conventional switch actuators.

* Explanation of symbols for main parts of the drawings

20: leaf switch 21: plate spring

22: plate spring 26: contact

27: contact 28: pressed member

32: moving body 33: pressing member

40: contact surface 41: end co-owner

The present invention relates to a switch operating device incorporated into a tape recorder or the like.

The conventional switch operating device is constructed as in FIG.

In this figure (1) is a switch, which has a pair of plate springs (2, 3) which serve as opposed conductive materials at intervals.

One end of these plate springs 2 and 3 is fixed to the pedestal 4, and the pedestal 4 is fixed to the upper surface of the mounting substrate 5 as a screw 6.

The other ends of the above-mentioned plate springs 2 and 3 are free ends.

The other end side facing surfaces of the plate springs 2, 3 are provided with contacts 7, 8 which are in contact with each other so as to be foldable.

These contacts 7 and 8 are usually separated from each other.

At the other end of the one plate spring 2, a rectangular pressing member 9 serving as an electrical insulating material is fixed.

On one side of the pressing member 9, the pressing member 11 integrally provided at the end of the movable body 10 is folded.

That is, the movable body 10 is mounted on the upper surface of the mounting substrate 5 so as to reciprocate in a direction substantially orthogonal to the plate springs 2 and 3.

The movable body 10 is slidably mounted on the upper surface of the mounting substrate 5 by a mounting screw 13 provided in the engagement hole 2 formed along the longitudinal direction thereof.

Then, as the movable body 10 moves in the direction of the arrow in the drawing in accordance with the movement of the operation push button (not shown), the pressing member 11 at the end presses the pressing member 9 to press one plate spring 2. The other side is bent to the spring side (3).

In this way, the two contacts 7 and 8 are brought into contact with each other, and the plate spring 3 on the other side of the dish is also subjected to the pressing force of the movable body 10 to elastically deform in the same direction. ), The contact pressure is obtained, and the switch 1 is turned on.

In such a configuration, in the switch operating device, when the moving range of the moving body 10 is too large, the switch 1 is broken. On the contrary, when the moving device 10 is too small, the contacts 7 and 8 of the switch 1 do not reliably contact each other. Cause badness.

Therefore, it is necessary to manage the moving range of the movable body 10 to a high degree, so that the relative mounting position of the movable body 10 and the switch 1 or the machining accuracy of the engagement hole 12 of the movable body 10 is increased. There was a problem such as bad productivity.

As a switch operating device which solves the problem in this way, there is the same thing as in FIG.

Incidentally, the same reference numerals as those in the third drawing described above in FIG. 4 are denoted by the same reference numerals, and description thereof will be omitted.

That is, in FIG. 4, the elastic pressing member 11 'bent in an inverted U-shape at the end of the movable body 10 is mounted as a screw 14 and pressed against the upper surface of the mounting substrate 5. FIG. The point which protruded the stopper 15 which limits the movement amount of the member 9 differs from what was shown in FIG.

In the case shown in FIG. 4, since the moving amount of the pressing member 9 is limited by the stopper 15, and the excess moving amount of the moving member 10 is absorbed by the elastic pressing member 11 ', the moving body ( The control accuracy of the moving range of 10) is alleviated, so that the relative mounting position of the movable body 10 and the switch 1 or the machining accuracy of the engaging hole 12 of the movable body 10 is alleviated, thereby achieving good productivity. In addition, the elastic pressing member 11 'or the stopper 15 are particularly required, and since they must be mounted, the number of assembly operations increases and the configuration becomes complicated.

In addition, neither of FIG. 3 nor FIG. 4 is hard to operate for moving the movable body 10 because the force of the springs 2 and 3 of the switch 1 becomes a resistance to the movement of the movable body 10. There was such a problem.

The present invention has been made in view of the above circumstances, and it is not necessary to manage the moving range of the moving object with high accuracy, it is good in mass productivity, and there is no breakage of the switch or the occurrence of poor conduction. It is an object of the present invention to provide a switch operating device that is lightened.

In order to solve the above-mentioned problems, the present invention constitutes at least one pair of leaf springs having an open contact on each of the free short axis opposing surfaces, and constitutes a leaf switch, and installs a member pressed against one of the leaf springs. A switch actuating device in which both contact points are pressed by pressing the pressed member as a pressing member installed at an end of the pressing member, wherein the moving direction of the movable body and the longitudinal direction of both spring coils are coincident with the pressing member. At least one of the portions in which the pressed members contact each other is a contact surface substantially parallel to the moving direction of the movable body, and the contact between the two contacts is made by sliding contact between the pressing member and the pressed member according to the movement of the movable body. The state is configured to be kept constant.

The movable body moves in the longitudinal direction of the leaf spring of the leaf switch, and the pressing member at the end of the movable body is in sliding contact with the pressed member of the plate spring of one of the leaf switches so that both contacts come into contact with each other.

After contact between the two contacts, even if the amount of movement of the pressing member changes, the amount of bending of the plate spring does not change, and thus the contact state of both contacts is maintained with a constant contact pressure.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 and 2.

This embodiment is well suited to the need to turn on the motor switch even when any of the plurality of operation push buttons is pressed, such as in a tape recorder.

1 is a plan view showing a non-operational state of a switch operating device of the present invention, in which 20 is a leaf switch for motor control, and the switch 20 is a conductive material facing each other at intervals. It has a pair of plate springs (21, 22).

One end of these plate springs 21 and 22 is fixed to the pedestal 23, and the pedestal 23 is fixed to the upper surface of the mounting substrate 24 by screws 25.

The other ends of the plate springs 21 and 22 are free ends.

Open contacts 26 and 27 are provided on the opposite ends of the plate springs 21 and 22, respectively.

At the other end of the one plate spring 21, a pressing member 28 serving as an electric insulator is fixed.

The pressing member 28 has a substantially J-shaped plane, the end of one side 29 of which is fixed to the one plate spring 21, and the other side 30 is the plate spring of one side. It is located on the outer side of 21 and extends to the other end side of one of these plate springs 21 with a parallel gap therebetween.

Moreover, the boundary co-owner part 31 of the both side surfaces 29 and 30 of the said pressing member 28 is circular arc surface.

The pressing member 33 provided at the end of the movable body 32 is folded on the outer surface of the pressing member 28.

That is, the movable body 32 is mounted on the upper and lower sides of the mounting substrate 24 so as to reciprocate in the longitudinal direction of the plate springs 21 and 22.

The movable body 32 is movably mounted to the upper surface of the mounting substrate 24 by mounting screws 36 and 37 attached to the engaging holes 34 and 35 formed along the longitudinal direction at both ends thereof. .

The pressing member 33 is a plane in which the other side surface 39 in parallel with the longitudinal direction of the plate spring (21, 22) is installed at the tip of one side 38 orthogonal to the moving direction of the movable body (32) It is generally L-shaped.

The proximal end of the one side face 38 is fixed to one end face of the movable body 32, and the other side face 39 faces the outer side of the plate spring 21 at parallel intervals.

The opposing surface of the other side surface 39 with one plate spring 21 serves as a contact surface 40 parallel to the longitudinal direction of the plate springs 21 and 22.

Then, as the movable body 32 moves to the left in the position in FIG. 1, the nose holder 41 of the member 28 on which the end nose holder 41 of the contact surface 40 of the pressing member 33 is pressed. 31, the one side spring 21 is bent toward the other side spring 22 as shown in FIG. 2, and the other side spring 22 is also slightly bent, so that both contacts 26, 27 ) Contact each other as the required contact pressure.

After the contact of the contact points 26 and 27, even if the movable body 32 moves to the left in the drawing again, since the contact surface 40 is parallel to the moving direction of the movable body 32, the amount of bending of the springs 21 and 22 is It does not change, and therefore the contact state of both contacts 26 and 27 is made to keep contact pressure constant.

The movable body 32 is supported by the spring 42 in the return movement direction (the first middle right direction), that is, the direction in which the switch 20 is turned off.

The spring 42 is fixed between the pressing member 33 and the spring hanger 43 protruding from the upper surface of the mounting substrate 24.

The movable body 32 is reciprocated in relation to the reciprocating operation of a plurality of operation buttons described later.

That is, a plurality of operation buttons 44, 45, 46 and 47 are provided on the upper surface of the mounting substrate 24 at intervals in the moving direction of the movable body 32, respectively.

Each of these operation buttons 44-47 is provided on the upper surface of the mounting substrate 24 so as to be movable in a direction orthogonal to the moving direction of the movable body 32.

The operation buttons 4-47 are movable by engaging the engaging holes 48 formed in the moving direction thereof with the guide pins 49 protruding from the upper surface of the mounting substrate 24.

The regeneration operation button 44 and the quick operation operation button 45 are supported in the return movement direction (the first middle direction downward) by a common bar spring 50.

In addition, the rewind operation button 46 and the stop operation button 47 are supported in the return movement direction (first intermediate downward direction) by the common bar spring 51.

Engagement pins 52 are protruded from the top surfaces of the front end portions of the respective operation buttons 44-47, and these engagement pins 52 are provided on the movable body 32 at each operation button 44-47. The engaging portions 53, 54, 55 and 56 correspondingly formed are movably engaged with each other.

The engaging portions 53-55 corresponding to the respective operation buttons 44-46 of the regeneration, fast forwarding and rewinding have a half pressing member as they move from the lower edge of the movable body 32 to the upper edge in the same configuration. An inclined surface 57 inclined right toward the (33) side, a horizontal surface 59 directed from the upper end 58 of the inclined surface 57 toward the pressing member 33 according to the moving direction of the movable body 32, and the horizontal surface From the side of the pressing member 33 side of 59, the movable body 32 has a vertical surface 60 that faces the upper edge of the movable body 32 in a direction orthogonal to the moving direction.

In addition, the engaging portion 56 corresponding to the stationary operation button 47 is a vertical surface (such as the vertical surface 60) to the upper end 62 of the inclined surface 61 inclined right in the same direction as the inclined surface 57 ( 63, but does not have a plane corresponding to the horizontal plane 59.

Incidentally, the inclination angle of the inclined surface 61 of the engaging portion 56 corresponding to the stationary operating button 47 is the engaging portion 53 corresponding to each of the operating buttons 44-46 of the regeneration, fast forwarding and rewinding. It is set smaller than the angle of the inclined surface 57 of -55.

Further, the length of the vertical surface 63 of the engaging portion 56 corresponding to the stationary operating button 47 is equal to the length of each engaging portion 56 of the regenerating, fast forwarding and rewinding operating buttons 44-46. It is set equal to the length of the vertical surface 60.

Next, the operation of the switch pore device according to the above configuration will be described.

In FIG. 1, the switch 20 is in an off state, that is, both contacts 26 and 27 are separated from each other.

In this state, each of the operation buttons 44-47 is all returned to the initial position by the holding force of the springs 50 and 51, and the movable body 32 is returned to the initial position by the holding force of the spring 42. Doing.

In this state, for example, if the fast-acting operation button 45 is moved upward against the holding force of the spring 50, the engagement pin 52 contacts the inclined surface 57 of the engagement portion 54. As it engages, the movable body 32 moves to the left during the first middle against the holding force of the spring 42.

In accordance with the movement of the movable body 32, one end of the plate spring 21 while the end co-owner 41 of the contact surface 40 of the pressing member 33 is in sliding contact with the nose holder 31 of the pressing member 28. The contact points 26 and 27 are in contact with each other by elastic displacement on the other plate spring 22 side.

As the pressing member 33 is moved after the two contacts 26 and 27 are in contact, the contact surface 40 is in sliding contact with the nose holder portion 31 of the pressing member 28 while the other spring coil 22 ) Elastically deforms in the same direction as one plate spring 21, so that the contact pressures of both contacts 26 and 27 reach a required value.

In this state, the engaging pin 52 of the quick-acting operating button 45 is engaged with the horizontal plane 59 beyond the upper end 58 of the inclined surface 57 of the engaging part 54. As soon as the operating button 45 is held in the moving position against the spring force of the spring 50, the engaging pin 52 is engaged with the vertical surface 60 of the engaging portion 54, thereby moving the moving object ( 32 is held at the movement position against the holding force of the spring 42 and is displayed in a solid line during the second time (and the switch 20 also moves when the operation buttons 44 and 46 for regeneration and rewinding are moved). ) Is exactly the same).

In this state, for example, when the stop operation button 47 is moved against the holding force of the spring 51, the engaging pin 52 is in sliding contact with the inclined surface 61 of the engaging portion 56, and thus the movable body 32 ) Moves against the holding force of the spring 42.

Then, the moving body 32 moves as indicated by the dashed-dotted line during the second period until the engaging pin 52 of the stop operation button 47 reaches the upper end 62 of the inclined surface 61. The fastening operation button 45 of the fast-acting operation button 45 moves out of the horizontal plane 59, and the fast-acting operation button 45 moves back to the holding force of the spring 50 to return to the initial position.

Thereafter, when the stop operation button 47 is released in the moving direction, the stop operation button 47 moves to the holding force of the spring 51 to return to the initial position.

At the same time, the movable body 32 returns to the return movement position by the holding force of the spring 42, the pressing member 33 falls off the pressing member 28, and both the springs 21 and 22 are elastic. As the return force returns to the initial position, the contact points 26 and 27 are separated from each other, and the switch 20 is turned off to be in the state as shown in FIG.

By the way, as shown by the solid line during the second period, when the two plate springs 21 and 22 are elastically deformed and both stops 26 and 27 are in contact with each other, the moving member 32 moves to the second position. In the middle of the movement, the contact surface 40 parallel to the moving direction of the moving body 32 is in sliding contact with the nose holder 31 of the pressing member 28. 28) does not displace any more, and the contact pressure of both contacts 26 and 27 does not change.

In this embodiment, the contact surface 40 parallel to the moving direction of the moving body 32 is provided on the pressing member 33, but may be provided on the pressing member 28 side.

In this case, when the pressing member 33 starts to contact the pressing member 28 and the contact pressure of the contact points 26 and 27 reaches the required value, the contact surface is parallel to the moving direction of the moving body 32. You can set it to

In addition, both the pressing member 33 and the pressing member 28 may be provided with a contact surface parallel to the moving direction of the moving body 32.

As described above, the present invention coincides with the moving direction of the moving body and the longitudinal direction of the pair of plate springs constituting the leaf switch, and at the same time the portion where the pressing member and the pressing member installed on one spring are in contact. At least one side is made into a contact surface substantially parallel to the moving direction of the movable body, and the contact state of both the contacts provided on the two springs is kept constant.

Therefore, since it is not necessary to install the press member or stopper which has the control degree of the moving range of a moving body, or elasticity specially, mass productivity is favorable.

In addition, since the displacement amount of the plate spring does not change even if the movable body moves after the two contacts are in contact with each other, it is possible to prevent damage to the switch caused by excessively pressing both plate springs.

In addition, since the pressing member does not need to be configured as an elastic member, both contacts immediately contact with the movement of the movable body.

In addition, since the elastic return force of the plate spring is not very resistant to the movement of the movable body, the operation force for moving the movable body is lightened.

Claims (1)

Open contacts 26 and 27 are provided on each of the free short axis opposing surfaces of at least one pair of plate springs 21 and 22 to form a relief switch 20, and the movable body 32 capable of reciprocating is moved. The movable member 32 is moved so that the pressing member 33 provided at the end of the movable member 32 presses the pressing member 28 provided at the free end of the one plate spring 21, so that the other In a switch operating device in which the plate spring 21 is bent to the other plate spring 22 side, and the two contact points are brought into contact with each other, the moving direction of the movable body and the plate springs 21 and 22. At least one of the portions where the pressing member 33 and the pressing member 28 engage with each other is made into a contact surface 40 substantially parallel to the moving direction of the moving body 32 while matching the longitudinal direction. The pressing member 33 and the pressed according to the movement of the movable body 32 Switch operating device, characterized in that the material (28) is configured so that the sliding contact because standing maintaining the contact state of both contacts 26 and 27 constant.