JP2005158306A - Pressing operation type switch device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pressing operation type switch with which downsizing of dimensions in the direction of displacement of an operation member can be carried out in the pressing operation type switch which is equipped with the operation member formed long in the perpendicular direction to the displacement direction, and a tilt prevention member accompanied with pressing of the end part of the operation member in the longitudinal direction. <P>SOLUTION: The tilt prevention member is composed of a crank member 13, and has a shaft part 13a rotatably held by the operation member 5 by a hook-like part 5d, rotating parts 13b, 13c which are installed at both ends of the shaft part 13a and which are pivotally rotated around this shaft part 13a, and sliding parts 13d, 13e which are installed at the respective rotating parts 13b, 13c and which are slidably held by the base board 4. The switch 6 is installed sideward of the operation member 5, and the sliding part 13d and a drive body 7 are made to be interlocked while a flattening face 7d of the drive body 7 of the switch 6 is made to be contacted with the sliding part 13d. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention includes a base, an operation member that is supported so as to be displaceable in a direction orthogonal to the base, and is formed long in the direction orthogonal to the displacement direction, and an operation member that is installed on the base and approaches the base The present invention relates to a press operation type switch device including a switch that operates in accordance with the displacement of the switch and a tilt prevention member that prevents tilting of an end portion of the operation member in the longitudinal direction accompanying a press operation.

  In a conventional pressing operation type switch device, a base, an operation member that is supported so as to be displaceable in a direction orthogonal to the base and is formed long in a direction orthogonal to the displacement direction, and the base installed on the base There is a switch equipped with a switch that operates in accordance with the displacement of the operation member in the direction of approaching, and a tilt prevention member that prevents tilting of the end portion in the longitudinal direction of the operation member accompanying a pressing operation. The tilt prevention member is arranged along the longitudinal direction of the operation member inside the operation member, and is rotatably formed on the operation member. And a crank member having a sliding portion that is formed integrally with the rotating portion and is slidably held on the base within a projection surface of the operation member with respect to the base. The operation member and the switch are arranged side by side in the displacement direction of the operation direction (see, for example, Patent Document 1).

Further, another conventional pressing operation type switch device includes a fixed contact fixed to the bottom surface of the casing, a movable contact slidingly contacting the fixed contact, and a slider provided with the movable contact and sliding on the bottom surface of the casing, A switch comprising a spring that urges the slider against the operating force, an operating member that is displaced toward the bottom surface of the casing in response to a pressing operation, and a link-like power transmission means interposed between the operating member and the slider There is. The operation member and the switch are arranged side by side in the displacement direction of the operation direction. Further, some power transmission means have a hinge part integrally formed with the operation member, and others are rotatably supported by the operation member (see, for example, Patent Document 2).
Japanese Utility Model Publication No. 7-25530 Japanese Utility Model Publication No. 61-61725

  Conventionally, there has been a demand for a pressing operation type switch device to reduce the size of the device in the displacement direction of the operation member. However, in the conventional pressing operation type switch device, since the operation member and the switch are arranged side by side in the displacement direction of the operation member, the size of the device in the displacement direction of the operation member is likely to increase, and miniaturization is difficult. There was a problem that there was.

  The present invention has been made in consideration of the above-described circumstances, and the object thereof is an operation member formed long in a direction orthogonal to the displacement direction and an operation associated with pressing an end portion in the longitudinal direction of the operation member. An object of the present invention is to provide a press operation type switch device that can easily reduce the size of the device in the displacement direction of the operation member in a press operation type switch device that includes a tilt prevention member that prevents the member from tilting.

  In order to achieve the above-described object, the present invention provides a base, an operation member that is supported so as to be displaceable in a direction orthogonal to the base, and is formed long in a direction orthogonal to the displacement direction, and is installed on the base. A switch that operates in accordance with the displacement of the operation member in a direction approaching the base, and a tilt prevention member that prevents the operation member from tilting when the end in the longitudinal direction of the operation member is pressed. The tilt prevention member is disposed along the longitudinal direction of the operation member and is rotatably supported by the operation member. The shaft is formed integrally with the shaft and rotates around the shaft. And a crank member having a sliding part formed integrally with the rotating part and slidably held on the base, and the switch is driven by an operating force, Along with the drive of this drive A pressing operation type switch device comprising: a movable contact that moves; a fixed contact that contacts and separates from the movable contact; and a biasing member that biases the driving body against an operating force. The switch is installed on the side, and the sliding portion of the crank member and the drive body of the switch are interlocked with each other.

  In the present invention configured as described above, the switch is installed on the side of the operation member, and the sliding portion of the crank member and the drive body of the switch are interlocked. Accordingly, since it is not necessary to arrange the operation member and the switch side by side in the displacement direction of the operation member, it is possible to reduce the size of the device in the displacement direction of the operation member by a space necessary for arranging the switch. As a result, it is possible to easily downsize the apparatus in the displacement direction of the operation member.

  Further, the present invention is characterized in that, in the above invention, the shaft portion and the sliding portion extend in opposite directions from the rotating portion, and a switch is installed on the side of the operation member in the longitudinal direction. To do.

  In the present invention configured as described above, the sliding portion slides in the short direction of the operation member on the side of the operation member in the longitudinal direction of the operation member, and is disposed on the side of the operation member in the longitudinal direction of the operation member. The switch driving body is operated by the sliding portion to drive in the short direction of the operating member. Since the driving body driven in this way does not drive in a direction approaching the operation member, there is no possibility of interference with the operation member. Therefore, the operation member can be designed without considering the interference between the operation member and the driving body. As a result, the degree of freedom in designing the operation member can be increased.

  Further, the present invention is the above invention, wherein the shaft portion is positioned away from a plane including a center line in the short direction of the operation member and parallel to the longitudinal direction, and the sliding portion is the shaft portion. It is characterized in that it is positioned in a direction toward the plane.

  In the present invention configured as described above, in the short direction of the operation member, the occupation range of the operation member and the drive range of the driving body can be brought close to each other or overlapped. Thereby, the dimension of the apparatus in the short direction of an operation member can be reduced in size.

  In the invention, the drive body of the switch has a flat surface that abuts on the sliding portion of the crank member.

  In the present invention configured as described above, even if a manufacturing error occurs in the crank member or the portion holding the crank member, the manufacturing error may be within a range in which the sliding portion can be brought into contact with the flat surface of the driving body. In this case, the sliding portion and the driving body can be interlocked. That is, the manufacturing error of the positional relationship between the driving body and the sliding portion can be absorbed by the flat surface of the driving body.

  As described above, according to the present invention, the switch can be disposed at a position that is not aligned with the operation member in the displacement direction of the operation member and that avoids the displacement range of the operation member. The size of the device in the direction of displacement of the operating member can be reduced only by the space required for the operation. As a result, it is possible to easily downsize the apparatus in the displacement direction of the operation member. Therefore, it can contribute to size reduction of a press operation type switch apparatus.

  Hereinafter, an embodiment of the pressing operation type switch device of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a main part of one embodiment of the pressing operation type switch device of the present invention, FIG. 2 is a longitudinal sectional view of one embodiment of the present invention, and FIG. 3 is one embodiment of the present invention. FIG. 4 is a transverse sectional view, FIG. 4 is a longitudinal sectional view of the entire apparatus showing a state in which an operation member provided in one embodiment of the present invention is pressed, and FIG. 5 illustrates an operation member provided in one embodiment of the present invention. It is a side view of the sliding part and sliding holding part which show the state of a sliding part when it is pressed.

  This embodiment is configured as shown in FIGS. That is, this embodiment includes the casing 1 shown in FIGS. 2 and 3 that houses the main part shown in FIG. The casing 1 includes a casing body 2, a cover 3 that covers an upper portion of the casing body 2, and a base 4 that serves as a bottom plate of the casing 1.

  The casing body 2 is provided with an operation member 5 that is supported so as to be displaceable in a direction orthogonal to the base 4, that is, in a vertical direction in FIG. The operation member 5 includes a head portion 5a including an upper surface that receives a pressing force from an operator during a pressing operation, a trunk portion 5b having a larger cross-sectional area than the head portion 5a, and the head portion 5a and the trunk portion 5b. And a neck portion 5c formed therebetween. Each of the upper part of the casing body 2 and the upper part of the cover 3 is provided with through holes 2a and 3a penetrating in the vertical direction. The head 5a and neck 5c of the operating member 5 are inserted through the through hole 2a, and only the head 5a is inserted through the through hole 3a and protruded from the cover 3. Moreover, the trunk | drum 5b of the operation member 5 is formed larger than the through-hole 2a, and this prevents the operation member 5 from detaching from the through-hole 2a.

  Further, on the base 4, a switch 6 that is operated in accordance with the displacement of the operation member 5 in a direction approaching the base 4 is installed. As shown in FIG. 2, the switch 6 is driven by operating force, for example, a driving body 7 that slides on the base 4, and a movable contact 8 that moves as the driving body 7 slides. And a first fixed contact 9 and a second fixed contact 10 with which the movable contact 8 contacts / separates.

  The driving body 7 is biased so as to return to the first fixed contact 9 by biasing means, that is, a coil spring 11. The casing body 2 is formed with a spring insertion portion 2b into which one end side of the coil spring 11 is inserted. The drive body 7 is formed with a convex portion 7 a that fits the other end of the coil spring 11.

  As shown in FIGS. 1 and 3, the drive body 7 is slidably fitted to the wall portion of the casing body 2 outside the spring insertion portion 2b so that the drive body 7 moves linearly. A pair of guide wall portions 2c and 2d are formed.

  The driving body 7 has a movable contact accommodating hole 7b that is opened on the lower surface thereof and is accommodated so that the movable contact 8 is exposed. Further, the driving body 7 has a spring accommodating hole 7c that is continuous with the movable contact accommodating hole 7b and in which the coil spring 12 is accommodated. That is, the movable contact 8 is biased by the coil spring 12 so that the movable contact 8 is always kept in pressure contact with the upper surface of the base 4.

  The first and second fixed contacts 9 and 10 are embedded in the base 4 so as to be exposed at a predetermined interval on the upper surface of the base 4 on the track of the movable contact 8.

  As shown in FIG. 3, the operation member 5 is provided with a tilt prevention member, that is, a crank member 13 that prevents the operation member 5 from being tilted when the end portion in the longitudinal direction 101 is pressed. The crank member 13 is formed by bending a metal rod-like body. The crank member 13 is formed at an intermediate portion thereof, and is disposed along the longitudinal direction 101 of the operation member 5 so as to be rotatably held by the operation member 5, and both ends of the shaft portion 13a. There are provided rotating portions 13b and 13c that rotate about the shaft portion 13a, and sliding portions 13d and 13e that are provided in the rotating portions 13b and are slidably held on the base 4.

  As shown in FIG. 2, the shaft portion 13 a of the crank member 13 is disposed at one corner formed by the trunk portion 5 b and the neck portion 5 c of the operation member 5 in the short direction 102 of the operation member 5. In addition, on the upper surface of the trunk portion 5b in the vicinity of the corner portion, a hook-like portion 18 is formed which rotatably holds the shaft portion 13a in cooperation with the upper surface of the trunk portion 5b and the side surface of the neck portion 5c. Further, on the side surface of the neck portion 5c above the hook-like portion 18, a projection portion 19 is formed which prevents the shaft portion 13a from floating from the upper surface of the trunk portion 5b in cooperation with the hook-like portion 18.

The base 4 is provided with sliding holding members 14 and 15 that slidably hold the sliding portions 13d and 13e. The sliding holding member 14 is a U-shaped member having a slit 14a in which one sliding portion 13d slides. Similarly, the sliding holding member 15 is formed of a U-shaped member having a slit in which the other sliding portion 13e slides. In this embodiment, in particular, the outer side of the projection surface 16 of the operating member 5 with respect to the base 4. For example, the switch 6 is installed on the side of the operation member 5 in the longitudinal direction 101. The one sliding portion 13d of the crank member 13 and the drive body 7 of the switch 6 are interlocked.

  In the present embodiment, the shaft portion 13a and the sliding portion 13d of the crank member 13 are formed so as to extend in opposite directions from the rotating portion 13b. That is, as shown in FIG. 3, the shaft portion 13a extends from the one rotating portion 13b in the back direction (the direction from the bottom to the top in FIG. 3), and the one sliding portion 13d extends from the rotating portion 13b to the front side. The crank member 13 extends in the same direction (from the top to the bottom in FIG. 3), and similarly, the shaft portion 13a extends from the other rotation portion 13c in the front direction and the other sliding portion 13e extends in the rear direction. Is formed.

  Further, in the present embodiment, the shaft portion 13a is located away from the plane 17 including the center line in the short direction 102 of the operation member 5 and parallel to the longitudinal direction 101, and the sliding portion 13d is provided with the shaft portion 13a. It is located in a direction from 1 to the plane 17.

  In the present embodiment, the drive body 7 of the switch 6 has a flat surface 7 d that contacts the sliding portion 13 d of the crank member 13.

  The operation of this embodiment configured as described above will be described with reference to FIGS.

  In a state where the operation member 5 is not pressed, the drive body 7 of the switch 6 is positioned on the first fixed contact 9 by the elastic force of the coil spring 11, and accordingly, the movable contact is moved as shown in FIG. 8 is in contact with the first fixed contact 9.

  In addition, the elastic force of the coil spring 11 is transmitted to the driving body 7, the sliding portion 13d of the crank member 13, and the shaft portion 13a, and acts on the protrusion 5e of the neck portion 5c of the operating member 5 to lift the operating member 5 upward. Energized in the direction. Thereby, in a state where the operation member 5 is not pressed, the operation member 5 is held in a state in which the upper half of the head 5 a protrudes from the cover 5.

  Then, when the operating member 5 is pressed and pushed downward (in the direction of arrow A) against the bias to the operating member 5, the crank member according to the downward displacement amount of the operating member 5 13 rotating portions 13b and 13c rotate clockwise around the shaft portion 13a (in the direction of arrow B), and one sliding portion 13d is slit 14a of the sliding holding member 14 as shown in FIG. And the other sliding portion 13e slides along the slit of the sliding holding member 15 in the same manner.

  At this time, the driving body 7 is pressed by the sliding portion 13d and slides leftward, and accordingly, the movable contact 8 slides leftward from the first fixed contact 9. As shown in FIG. 4, when almost the entire head 5 a of the operation member 5 is pushed into the cover 2, the driving body 7 reaches the second fixed contact 10, and accordingly, the movable contact 8. Is in contact with the second fixed contact 10.

  When the operating member 5 is not pressed, the driving body 7 returns from the second fixed contact 10 to the first fixed contact 9 by the elastic force of the coil spring 11. Along with this, the movable contact 8 also returns from the state in contact with the second fixed contact 10 to the state in contact with the first fixed contact 9.

  Thus, while the drive body 7 returns, the sliding part 13d of the crank member 13 is pushed back by the drive body 7. That is, the sliding portion 13d slides in the right direction along the slit 14a of the sliding holding member 14, and similarly the sliding portion 13e slides along the slit of the sliding holding member 15. Accordingly, the rotating portions 13d and 13c rotate counterclockwise (in the direction opposite to the arrow B) around the shaft portion 13a. Then, an upward pressing force acts on the projection 5e of the neck 5c of the operation member 5 from the shaft portion 13a, whereby the operation member 5 is pushed up and returned to the position shown in FIG.

  According to this embodiment, the following effects can be obtained.

  In the present embodiment, the switch 6 is installed outside the projection surface 16 of the operation member 5 with respect to the base 4, for example, on the side in the longitudinal direction 101 of the operation member 5. The drive body 7 of the switch 6 is interlocked. This eliminates the need to arrange the operation member 5 and the switch 6 side by side in the displacement direction 100 of the operation member 5, so that the size of the device in the displacement direction 100 of the operation member 5 is only the space necessary to arrange the switch 6. Can be miniaturized. Therefore, it can contribute to size reduction of a press operation type switch apparatus.

  In the present embodiment, the shaft portion 13a and the sliding portion 13d of the crank member 13 extend in the opposite directions from the rotating portion 13b, and similarly, the shaft portion 13a and the sliding portion 13e are mutually connected to the rotating portion. A switch 6 is provided on the side of the operation member 5 in the longitudinal direction 101 of the operation member 5 so as to extend in the opposite direction from 13c. As a result, the sliding portions 13d and 13c slide in the short direction 102 of the operating member 5 on the side of the operating member 5 in the longitudinal direction 101 of the operating member 5, and the sliding portions 13c and 13d slide. Accordingly, the driving body 7 of the switch 6 disposed on the side of the operation member 5 in the longitudinal direction 101 of the operation member 5 is operated by the sliding portion to drive in the short direction 102 of the operation member 5. Since the driving body 7 that is driven in this way does not drive in the direction approaching the operation member 5, there is no possibility of interference with the operation member 5. Therefore, the operation member 5 can be designed without considering the interference between the operation member 5 and the driving body 7. As a result, the degree of freedom in designing the operation member 5 can be increased.

  In the present embodiment, the shaft portion 13a of the crank member 13 is located away from the plane 17 including the center line in the short direction 102 of the operation member 5 and parallel to the longitudinal direction 101, and the sliding portions 13d and 13e. However, it was made to be located in the direction which goes to the plane 17 from the axial part 13a. Thereby, in the short direction 102 of the operation member 5, the occupation range of the operation member 5 and the drive range of the drive body 7 can be brought close to each other or overlapped. Thereby, the dimension of the apparatus in the short direction 102 of the operation member 5 can be reduced.

  Further, in the present embodiment, the driving body 7 of the switch 6 has the flat surface 7d that contacts the sliding portion 13d of the crank member 13. Thereby, even if a manufacturing error occurs in the crank member 13 or a portion holding the crank member 13, the manufacturing error is within a range in which the sliding portions 13d and e can be brought into contact with the flat surface 7d of the driving body 7. If it exists, the sliding part 13d and the drive body 7 can be made to interlock | cooperate. That is, the flat surface 7d of the driving body 7 can absorb manufacturing errors in the positional relationship between the driving body 7 and the sliding portion 13d.

  In the present embodiment, the shaft portion 13a and the sliding portion 13d of the crank member 13 extend in opposite directions from the rotating portion 13b, and similarly, the shaft portion 13a and the sliding portion 13e are mutually rotating portions. The switch 6 is arranged on the side of the operation member 5 in the longitudinal direction 101 of the operation member 5 so as to extend in the opposite direction from 13c. However, the present embodiment is not limited to this, and the shaft portion 13a and the sliding portion 13d of the crank member 13 extend in parallel with each other, and similarly, the shaft portion 13a and the sliding portion 13e rotate relative to each other. The switch 6 may be installed on the side of the operation member 5 in the short direction 102 of the operation member 5 so as to extend in parallel from the portion 13c. Even with this configuration, it is possible to easily reduce the size of the device in the displacement direction 100 of the operation member 5 and contribute to the size reduction of the pressing operation type switch device.

It is a perspective view which shows the principal part of one Embodiment of the press operation type switch apparatus of this invention. It is a longitudinal cross-sectional view of one Embodiment of this invention. It is a cross-sectional view of one embodiment of the present invention. It is a longitudinal cross-sectional view of the whole apparatus which shows the state by which the operation member with which one Embodiment of this invention was equipped was pressed. It is a side view of the sliding part and sliding holding part which show a sliding part when the operation member with which one Embodiment of this invention is equipped is pressed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Casing 2 Casing main body 2c, 2d Guide wall part 3 Cover 4 Base 5 Operation member 6 Switch 7 Driver 7d Flat surface 8 Movable contact 9 1st fixed contact 10 2nd fixed contact 11 Coil spring (biasing member)
13 Crank member 13a Shaft portion 13b Rotating portion 13c, 13d Rotating portion 13d, 13e Sliding portion 14, 15 Sliding holding member 17 Flat surface 18 Hook-shaped portion 19 Protruding portion

Claims (4)

A base, an operation member supported so as to be displaceable in a direction orthogonal to the base, and formed long in a direction orthogonal to the displacement direction, and the displacement of the operation member in a direction close to the base installed on the base A switch that operates in conjunction with, and a tilt prevention member that prevents tilting of the operation member due to pressing of the end in the longitudinal direction of the operation member,
The tilt prevention member is disposed along the longitudinal direction of the operation member and is rotatably supported by the operation member. The rotation unit is formed integrally with the shaft and rotates around the shaft. And a crank member having a sliding portion formed integrally with the rotating portion and slidably held on the base,
The switch is driven by an operating force to be driven, a movable contact that moves as the driving body is driven, a fixed contact that the movable contact is in contact with and separated from, and the drive body that resists the operating force. A pressing operation type switch device having a biasing member for biasing,
While installing the switch on the side of the operation member,
A pressing operation type switch device, wherein the sliding portion of the crank member and the driving body of the switch are interlocked. In the invention of claim 1,
A pressing operation type switch device, wherein the shaft portion and the sliding portion extend in opposite directions from the rotating portion, and a switch is installed on a side of the operation member in the longitudinal direction. In the invention of claim 2,
The shaft portion is positioned away from a plane including the center line in the short direction of the operation member and parallel to the longitudinal direction, and the sliding portion is positioned in a direction from the shaft portion toward the plane. A press operation type switch device characterized by that. In the invention according to any one of claims 1 to 3,
The pressing operation type switch device, wherein the drive body of the switch has a flat surface that contacts the sliding portion of the crank member.

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