JP2006066125A - Switching device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To heighten an operation feeling of a knob for a switching device of a structure in which a pusher is made to slide along a sliding face in interlocking with rotation of an operating member. <P>SOLUTION: Wall parts 31 opposing each other with a moderation part 26 in between are formed at a pusher guide 22. The both wall parts 31 have a groove 32 each formed, with which a protrusion 33 of a pusher 23 is engaged in free sliding. In this structure, not only an upper half part of the pusher 23 is guided by the pusher guide 22, but a lower half part of the pusher 23 is also guided based on contact of an outer periphery face of the both protrusions with inner faces of the both grooves 32. Consequently, a whole region in a length direction of the pusher 23 is guided from a turning direction of a knob 18, so that the pusher 23 is restrained from getting unstable against the pusher guide 22 at turning of the knob 18, hence an operating feeling of the knob 18 is heightened. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a switch device configured to slide a pusher along a sliding surface in conjunction with rotation of an operation member.

A conventional configuration of the switch device will be described with reference to FIG. A cylindrical portion 101 is formed on the operation member 100, and an upper end portion of the pusher 102 is inserted into the cylindrical portion 101. The pusher 102 is pressed against the inverted triangular sliding surface 104 by the spring force of the spring 103, and the operation member 100 is in an initial state based on the engagement of the pusher 102 with the valley of the sliding surface 104. Retained. The operation member 100 is rotatable about a shaft 105. When the operation member 100 is rotated from its initial state, the pusher 102 is pressed by the sliding surface 104, and the spring force of the spring 103 is applied. Retract into the cylinder portion 101 against it. When the operating force is removed from the operating member 100 in this state, the pusher 102 is lowered along the sliding surface 104 by the restoring force of the spring 103, and the operating member 100 returns to the initial state.
Japanese Utility Model Publication No. 7-22435

In the case of the above conventional configuration, the lower half of the pusher 102 is protruded from the cylindrical portion 101, and only the upper half of the pusher 102 is limitedly guided by the cylindrical portion 101. For this reason, the backlash degree with respect to the cylinder part 101 of the pusher 102 was large, and there existed a tendency for the operation feeling of the operation member 100 to fall under the influence of the relative backlash of the pusher 102. FIG.
This invention is made | formed in view of the said situation, The objective is to provide the switch apparatus which can raise the operation feeling of an operation member.

  The switch device according to the present invention includes an operation member that is rotatably provided, a cylinder portion that is provided on the operation member, a pusher that is slidably inserted into the cylinder portion, and a pusher that pushes the pusher against a sliding surface. A spring member to be attached, a pair of wall portions provided on the cylindrical portion and opposed to each other across the sliding surface, and a pair of guides provided on the pair of wall portions and extending in a sliding direction with respect to the cylindrical portion of the pusher And a pair of guided portions provided on the pusher and slidably engaged with the pair of guide portions.

  A wall portion opposing the sliding surface is provided on the cylindrical portion of the operating member, and both guided portions of the pusher are slidably engaged with both guide portions of both wall portions. For this reason, not only the proximal end portion of the pusher opposite to the sliding surface is guided by the cylindrical portion, but also the distal end portion of the pusher on the same side as the sliding surface is guided by both wall portions of the cylindrical portion. . Accordingly, since the entire area of the pusher is guided from the rotation direction of the operation member, it is possible to prevent the pusher from rattling against the cylinder portion when the operation member is rotated, and the operation feeling of the operation member is enhanced.

  An embodiment of the present invention will be described with reference to FIGS. In this embodiment, the present invention is applied to a power window switch device for a vehicle. As shown in FIG. 1A, the switch body 1 has a box shape with an open bottom surface, and a printed wiring board 2 is fixed to the switch body 1. The printed wiring board 2 functions as a cover for closing the lower surface of the switch body 1, and a switch case 3 is fixed to the printed wiring board 2. As shown in FIG. 2, the switch case 3 has a box shape with an open rear surface, and a switch substrate 4 is fixed to the switch case 3. The switch board 4 functions as a cover for closing the rear surface of the switch case 3, and fixed contacts 5 to 9 are fixed to the switch board 4 in a horizontal row.

  A contact holder 10 is accommodated in the switch case 3. The contact holder 10 is slidable along the arrangement direction of the fixed contacts 5 to 9, and a pin-like operation portion 11 is formed on the contact holder 10. The operation unit 11 protrudes from the switch case 3 through the long hole 12. The long hole 12 is formed in the switch case 3, and the contact holder 10 slides based on the operation portion 11 being operated from the outside of the switch case 3.

  Movable contacts 13 and 14 are attached to the contact holder 10. One end portion of a contact spring 15 is attached to each of the movable contacts 13 and 14, and the other end portion of each contact spring 15 is attached to the contact holder 10. Each of these contact springs 15 comprises a compression coil spring, and the movable contacts 13 and 14 are pressed against the switch board 4 by the spring force of the contact spring 15.

The fixed contacts 5 and 9 are connected to the minus terminal of the in-vehicle battery through the printed wiring board 2, and the fixed contact 7 is connected to the plus terminal of the in-vehicle battery through the printed wiring board 2. The remaining fixed contacts 6 and 8 are connected to both terminals of the in-vehicle power window motor 16 via the printed wiring board 2, and the fixed contacts 5 to 9 are contact holders as shown in 1) to 3) below. 10 is selectively conducted through the movable contacts 13 and 14 based on the movement between the neutral position, the raised position and the lowered position.
1) Neutral position of the contact holder 10 The neutral position refers to a state in which the operation portion 11 is located at the center in the longitudinal direction in the long hole 12. At the neutral position of the contact holder 10, the movable contact 13 contacts the fixed contacts 5 and 6, and the movable contact 14 contacts the fixed contacts 8 and 9. For this reason, the power feeding path of the power window motor 16 is opened, and the power window motor 16 is turned off.
2) Raised position of the contact holder 10 The raised position refers to a state in which the operating portion 11 is located at the end of the elongated hole 12 in the direction of arrow B. At the raised position of the contact holder 10, the movable contact 13 contacts the fixed contacts 5 and 6, and the movable contact 14 contacts the fixed contacts 7 and 8. Therefore, forward power is supplied to the power window motor 16, and the power window rises based on the normal rotation of the power window motor 16.
3) Lowering position of the contact holder 10 The lowering position refers to a state in which the operation portion 11 is located at the end in the opposite arrow B direction in the long hole 12. At the lowered position of the contact holder 10, the movable contact 13 contacts the fixed contacts 6 and 7, and the movable contact 14 contacts the fixed contacts 8 and 9. For this reason, power in the reverse direction is supplied to the power window motor 16 and the power window is lowered based on the reverse rotation of the power window motor 16.

As shown in FIG. 1A, the switch body 1 is formed with a knob base 17, and a knob 18 corresponding to an operation member is mounted on the knob base 17 so as to be rotatable about a shaft 19. . An arm 20 is formed on the knob 18, and a notched groove 21 is formed at the lower end of the arm 20. The operation portion 11 of the contact holder 10 is slidably engaged in the groove portion 21, and the contact holder 10 slides in conjunction with the turning operation of the knob 18, as shown in the following 11) to 13). To do.
11) Neutral position of knob 18 The neutral position refers to the horizontal non-operating state of the knob 18. At the neutral position of the knob 18, the contact holder 10 stops at the neutral position based on the arm 20 being in a vertical standing state. In this state, the power window motor 16 is turned off and the power window stops at the current position.
12) Raised position of the knob 18 The raised position refers to an operation state in which the knob 18 is tilted in the direction of arrow A. At the raised position of the knob 18, the arm 20 rotates in the arrow A direction, and the contact holder 10 moves to the raised position based on sliding in the arrow B direction. In this state, the power window motor 16 rotates forward and the power window rises.
13) Lowering position of the knob 18 The lowering position refers to an operation state in which the knob 18 is tilted in the opposite arrow A direction. At the lowered position of the knob 18, the arm 20 rotates in the counter arrow A direction, and the contact holder 10 moves to the lowered position based on sliding in the counter arrow B direction. In this state, the power window motor 16 reverses and the power window descends.

  As shown in FIG. 1A, a pusher guide 22 corresponding to a cylindrical portion is formed on the knob 18. The pusher guide 22 has a rectangular tube shape extending along the arm 20, and a pusher 23 is slidably inserted into the pusher guide 22. As shown in FIG. 3, the pusher 23 has a quadrangular prism shape, and a projecting spring guide 24 is formed on the upper surface of the pusher 23. A pusher spring 25 corresponding to a spring member is fitted to the outer peripheral surface of the spring guide 24 as shown in FIG. The pusher spring 25 is composed of a compression coil spring and is housed in the pusher guide 22.

  A moderation portion 26 is formed in the switch body 1 as shown in FIG. The moderation portion 26 has an inverted triangular shape having sliding surfaces 27 and 28 that incline downward toward the other side, and the moderation portion 26 has a valley portion 29 corresponding to an engagement portion. The trough 29 is an intersection of the sliding surfaces 27 and 28. When the knob 18 is in the neutral position, the chamfered portion 30 of the pusher 23 is engaged with the trough 29 by the spring force of the pusher spring 25. . As shown in FIG. 3, the chamfered portion 30 refers to a semicircular arc shaped molded portion formed at the lower end of the pusher 23, and the knob 18 has an engaging force between the trough 29 and the chamfered portion 30. At the neutral position. The chamfered portion 30 corresponds to an arcuate surface portion.

  The sliding surface 27 of the moderation portion 26 automatically returns the knob 18 from the raised position to the neutral position. That is, when the knob 18 is operated from the neutral position to the raised position, the chamfered portion 30 of the pusher 23 is pressed by the inclined surface 27, and the pusher 23 is retracted into the pusher guide 22 against the spring force of the pusher spring 25. . When the operating force is removed from the knob 18 in this state, the chamfered portion 30 is lowered along the sliding surface 27 by the restoring force of the pusher spring 25, and the chamfered portion 30 is engaged with the trough portion 29. Then, the knob 18 returns from the raised position to the neutral position.

  The inclined surface 28 of the moderation portion 26 automatically returns the knob 18 from the lowered position to the neutral position. That is, when the knob 18 is operated from the neutral position to the lowered position, the chamfered portion 30 of the pusher 23 is pressed by the inclined surface 28, and the pusher 23 is retracted into the pusher guide 22 against the spring force of the pusher spring 25. . When the operating force is removed from the knob 18 in this state, the chamfer 30 is lowered along the inclined surface 28 by the restoring force of the pusher spring 25, and the chamfer 30 is engaged with the valley 29. The knob 18 returns from the lowered position to the neutral position.

  As shown in FIG. 3, the pusher guide 22 has a pair of wall portions 31. As shown in FIG. 1B, the both wall portions 31 are opposed to each other with the moderation portion 26 interposed therebetween, and the both wall portions 31 have groove portions corresponding to the guide portions as shown in FIG. 32 are individually formed. Each of the grooves 32 has a straight shape extending along the sliding direction of the pusher 23 with respect to the pusher guide 22, and has a U-shaped guide surface 34 as shown in FIG. Each of the guide surfaces 34 refers to the inner peripheral surface of the groove portion 32, and a projection 33 corresponding to the guided portion is slidably inserted into each groove portion 32 as shown in FIG. Each of these protrusions 33 is formed at the lower end of the pusher 23 and protrudes from both side surfaces of the pusher 23 different from the operation direction of the knob 18. Each of the protrusions 33 has a cylindrical shape having the same radius as the chamfered portion 30 of the pusher 23 and is connected to the chamfered portion 30 without a step.

  According to the above embodiment, the pusher guide 22 is provided with the wall portions 31 opposed to each other with the moderation portion 26 interposed therebetween, and both the projecting portions 33 of the pusher 23 are slidably engaged in the both groove portions 32 of the both wall portions 31. For this reason, not only the upper half part of the pusher 23 is guided by the pusher guide 22 but also the lower half part of the pusher 23 is formed based on the fact that the outer peripheral surfaces of both protrusions 33 are in contact with the guide surfaces 34 of both groove parts 32. Guided. Therefore, since the entire longitudinal direction of the pusher 23 is guided from the rotating direction of the knob 18, it is possible to prevent the pusher 23 from rattling with respect to the pusher guide 22 when the knob 18 is rotated. Ring increases.

Since the pusher 23 is provided with both cylindrical protrusions 33 having the same radius as the arc-shaped chamfered portion 30 and connected to the arc-shaped chamfered portion 30 without a step, the pusher 23 is slid when the knob 18 is rotated. The moving surfaces 27 and 28 slide smoothly without being caught.
In the above embodiment, the present invention is applied to a power window switch device for a vehicle. However, the present invention is not limited to this. For example, a switch device for operating a vehicle direction indicator and a switch device for operating a vehicle light. You may apply to. In short, the application range is not limited to the power window switch device.

The figure which shows one Example of this invention (a is sectional drawing which shows whole structure, b is sectional drawing which follows a X-ray) Sectional view showing internal configuration of switch case Perspective view showing appearance of pusher and pusher guide Figure showing a conventional example

Explanation of symbols

18 is a knob (operation member), 22 is a pusher guide (cylinder part), 23 is a pusher, 25 is a pusher spring (spring member), 27 is a sliding surface, 28 is a sliding surface, and 30 is a chamfered portion (arc surface portion). , 31 is a wall portion, 32 is a groove portion (guide portion), and 33 is a protrusion (guided portion).

Claims (2)

An operation member provided rotatably,
A cylindrical portion provided on the operating member;
A pusher slidably inserted into the tubular portion;
A spring member for pressing the pusher against the sliding surface;
A pair of wall portions provided on the cylindrical portion and facing each other with the sliding surface interposed therebetween;
A pair of guide portions provided on the pair of wall portions and extending along a sliding direction of the pusher with respect to the cylindrical portion;
A switch device comprising: a pair of guided portions provided on the pusher and slidably engaged with the pair of guide portions. The pusher is provided with an arcuate surface portion pressed against the sliding surface,
Each of the guided portions is a protrusion having the same radius as the arc surface portion and connected to the arc surface portion without a step,
The switch device according to claim 1, wherein each guide portion includes a groove portion in which the protrusion is slidably engaged.

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