JP5457246B2 - Swing type switch device - Google Patents

Description

  The present invention relates to an oscillating switch device capable of transmitting an ON signal when a switch knob is in a first position, a second position, and a neutral position.

  In many cases, vehicles, ships, and the like are provided with a switch device for making various switching by turning on and off the mounted electrical components, and a swing type switch device is generally used as the switch device. ing. For example, in a construction machine such as a wheel loader, a swing type switch device having a switch knob that can swing between forward (first position), reverse (second position), and neutral (neutral position) is disposed. When one switch means is turned on and the accelerator is stepped on when in the first position, the vehicle moves forward, and when another switch means is turned on and the accelerator is stepped on when in the second position, the vehicle moves backward Some switches are controlled in this way. In addition, since this prior art does not relate to the literature known invention, there is no prior art document information to be described.

  However, in the above-described conventional oscillating switch device, when the switch knob is in the neutral position, the predetermined switch means is turned on, as in the first position and the second position, and the first position, the second position, What is needed is one that forms three circuits corresponding to each of a position and a neutral position. That is, in a conventional swing type switch device (particularly, a crimp contact structure (a type in which the switch means is pressed and turned on / off)), when the switch knob is in the first position and the second position, The corresponding switch means can be turned on, but when it is in the neutral position, it is turned off (off state in which none of the switch means is turned on), and three circuits cannot be formed.

  However, if the slide contact structure is configured such that the movable contact slides with respect to the fixed contact as the switch knob swings, three circuits can be easily formed even when the switch knob is in the neutral position. In this case, however, there is a problem that the sliding range of the movable contact must be ensured, and the entire switch device becomes large.

  The present invention has been made in view of such circumstances, and the switch knob can press the predetermined switch means at any of the first position, the second position, and the neutral position to transmit an on signal. Another object of the present invention is to provide a swing type switch device that can be miniaturized.

  According to a first aspect of the present invention, there is provided a switch knob capable of swinging between a first position, a second position, and a neutral position between the first position and the second position, and the switch knob First switch means that can be pressed to transmit an on signal when in the first position, second switch means that can be pressed to transmit an on signal when the switch knob is in the second position, and the switch And a third switch means that can be pressed to transmit an on signal when the knob is in the neutral position, and is a rocker capable of transmitting an on signal when the switch knob is in the first position, the second position, and the neutral position. And a biasing member disposed on the switch knob and biased toward the third switch means, and the biasing member only when the switch knob is in a neutral position. Insert the part before Further comprising a case member neutral position for opening is formed which enables the press to the third switching means, characterized.

  According to a second aspect of the present invention, in the oscillating switch device according to the first aspect, the case member is formed with a concavo-convex shape at a peripheral edge including the neutral position opening, and the oscillating operation of the switch knob is performed. Accordingly, moderation is imparted by sliding the urging member on the concavo-convex upper surface.

  According to a third aspect of the present invention, in the oscillating switch device according to the first or second aspect, the switch knob has a third extending portion that extends toward the third switch means, and The urging member is disposed in the third extending portion.

  According to a fourth aspect of the present invention, in the oscillating switch device according to the third aspect, the switch knob includes a first extending portion extending toward the first switch means and the second switch means. A second extending portion extending toward the first position, and the case member includes a first position at which the first extending portion can press the first switch means when the switch knob is in the first position. And a second position opening that allows the second extending portion to press the second switch means when in the second position.

  According to a fifth aspect of the present invention, in the oscillating switch device according to any one of the first to fourth aspects, the first switch means, the second switch means, and the third switch means comprise tact switches. It is characterized by.

  According to the first aspect of the invention, only when the switch knob is in the neutral position, the urging member is inserted to enable the pressing against the third switch means, so that the switch knob has the first position, the second position, and In any of the neutral positions, a predetermined switch means can be pressed to transmit an ON signal, and the swing type switch device can be miniaturized.

  According to the invention of claim 2, the case member is formed with an uneven shape on the periphery including the neutral position opening, and the urging member slides on the upper surface of the uneven shape as the switch knob swings. Therefore, the biasing member can have both a pressing operation function for the third switch means in the neutral position and a moderation function, and further downsizing the swing type switch device. Can do.

  According to the invention of claim 3, since the switch knob has the third extending portion extending toward the third switch means, and the urging member is disposed in the third extending portion. The pressing of the third switch means by the urging member when the switch knob is in the neutral position can be performed more reliably.

  According to the invention of claim 4, the switch knob has a first extending portion extending toward the first switch means and a second extending portion extending toward the second switch means. In addition, the case member includes a first position opening that allows the first extending portion to press the first switch means when the switch knob is in the first position, and a second extending portion that is capable of pressing the first switch means when the switch knob is in the second position. Since the second position opening that allows the two switch means to be pressed is formed, the pressure of the first switch means or the second switch means when the switch knob swings to the first position or the second position is further increased. It can be done reliably.

  According to the invention of claim 5, since the first switch means, the second switch means, and the third switch means are composed of tact switches, they can have durability enough to withstand many times of switch operations. Thus, it is possible to more easily take waterproof measures or dust-proof measures.

1 is a longitudinal sectional view showing an oscillating switch device according to an embodiment of the present invention. Part II enlarged view in FIG. The top view which shows the case member in the same oscillation type switch apparatus A three-side view showing a member to be pressed in the oscillating switch device Exploded perspective view showing the oscillating switch device A longitudinal sectional view showing a state in which the switch knob of the swing type switch device is swung. VII part enlarged view in FIG.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The swing type switch device according to the present embodiment is disposed on a construction machine such as a wheel loader, and can transmit an ON signal when the switch knob is in the first position, the second position, and the neutral position. Is. As shown in FIGS. 1 to 5, such a swing type switch device includes a switch knob 1, a first switch means 2a, a second switch means 2b, a third switch means 2c, an action ball 13 as an urging member, The case member C2 is mainly configured.

  The switch knob 1 can be swung between a first position (forward position), a second position (retracted position), and a neutral position (neutral position) between the first position and the second position. Therefore, the first switch knob 1a and the second switch knob 1b that can be pressed by the operator are assembled and integrated. Of these, the second switch knob 1b is integrally formed with a swing shaft L, and a first extending portion a extending toward the first switch means 2a and a second switch means 2b. A second extending portion b extending toward the third portion and a third extending portion c extending toward the third switch means 2c are integrally formed.

  The third extending portion c is formed with an insertion hole 1ba that is open at the protruding end and extends in the vertical direction, and a coil spring 12 is disposed in the insertion hole 1ba. An action ball 13 (biasing member) urged downward by the coil spring 12 is disposed on the tip (lower end in the drawing) side of the coil spring 12. That is, the action ball 13 (biasing member) is disposed on the switch knob 1 (specifically, the third extending portion c of the switch knob 1) and is biased toward the third switch means 2c. Are assembled.

  The case C1 constitutes the case of the swing type switch device. The case member C2 (inner case), the substrate 9, the first switch means 2a, and the second switch means are held while the switch knob 1 is swingably movable. 2b, third switch means 2c and the like are included. In the figure, reference numeral 3 denotes a boot for sealing between the case C1 and the switch knob 1, and reference numeral 10 denotes a boot for sealing the bottom surface of the case C1. The cover 11 is assembled.

  The case member C2 is formed with a pair of projecting portions C2a formed integrally and projecting upward, and a hole C2b formed in a predetermined portion of the projecting portion C2a. A switch knob is formed in the hole C2b. 1 swing shaft L can be inserted. As a result, the switch knob 1 swings about the swing axis L and can swing from the neutral position to the first position or from the neutral position to the second position.

  Further, as shown in FIG. 3, the case member C2 is formed with a neutral position opening 14, a first position opening 15a, and a second position opening 15b, respectively. The lower part of an action ball 13 (biasing member) described later can be inserted. Particularly in the present embodiment, the action ball 13 is set so that it can be fitted into the neutral position opening 14 only when the switch knob 1 is in the neutral position. When the switch knob 1 is swung to the first position, the tip of the first extending portion a reaches the first position opening 15a, and the switch knob 1 is swung to the second position. At this time, the tip of the second extending portion b is set to reach the second position opening 15b.

  Further, a pressed member 4a that can be pressed by the first extending portion a is disposed in the first position opening 15a, and the second position opening 15b is provided by the second extending portion b. A pressed member 4b is provided. Assembly parts 5a and 5b are assembled to these pressed members 4a and 4b via springs S1 and S2, and the switch knob 1 is swung to the first position or the second position, so that the first extending portion When the pressed members 4a and 4b are pressed by a or the second extending portion b, the pressing force can be transmitted to the assembly parts 5a and 5b while absorbing the impact by the elasticity of the springs S1 and S2. It has become.

  Furthermore, below the neutral position opening 14 is disposed a pressed member 6 to which the assembly component 7 is assembled via a spring S3. Thus, when the pressed member 6 is pressed by the action ball 13 (biasing member) disposed in the third extending portion c when the switch knob 1 is in the neutral position, the elasticity of the spring S3 is used. The pressing force can be transmitted to the assembly part 7 while absorbing the impact. As shown in FIG. 4, the pressed member 6 is integrally formed with a convex portion 6 a at its protruding end (upper end in the drawing), and the upper side of the convex portion 6 a is inserted into the neutral position opening 14. Yes. Thereby, when the switch knob 1 is in the neutral position, the action ball 13 (the urging member) is surely pressed.

  A packing 8 for waterproofing and dustproofing is disposed at the lower part of the assembly parts 5a, 5b, and 7 described above. The packing 8 is formed with bent portions 8a, 8b, 8c that can be bent when a pressing force is applied (see FIG. 5), and the assembly part 5a and the lower surface are formed on the upper surface of the bent portion 8a. The first switch means 2a is provided with the assembly part 5b on the upper surface of the bent portion 8b and the second switch means 2b on the lower surface, the assembly component 7 on the upper surface of the bent portion 8c and the third switch means 2c on the lower surface. The

  When the switch knob 1 is in the first position, the first switch means 2a is capable of transmitting an ON signal (electric signal) by being pressed by the first extending portion a via the assembly part 5a, the second switch When the switch knob 1 is in the second position, the means 2b can be pressed by the second extending portion b via the assembly part 5b to transmit an ON signal (electric signal). The third switch means 2c When the switch knob 1 is in the neutral position, it can be pressed by the action ball 13 (biasing member) via the assembly part 7 to transmit an ON signal (electric signal).

  In the present embodiment, these first switch means 2a, second switch means 2b, and third switch means 2c are tacts arranged in a substantially straight line on a substrate 9 on which a predetermined electric circuit is formed. Each of the ON signals (electrical signals) is transmitted to a control unit such as an ECU of the vehicle. Accordingly, when the accelerator is depressed when the switch knob 1 is in the first position, the vehicle can be advanced, and when the accelerator is depressed when the switch knob 1 is in the second position, the vehicle can be moved backward. Even when the knob 1 is in the neutral position, an ON signal (electric signal) can be transmitted to the vehicle side. The ON signal (electrical signal) when the switch knob 1 is in the neutral position can be transmitted to, for example, a vehicle safety device.

  Here, in the present embodiment, as shown in FIGS. 2 and 3, a concavo-convex shape B integrally formed with the case member C <b> 2 is formed on the periphery of the case member C <b> 2 including the neutral position opening 14. The action ball 13 (the urging member) slides on the upper surface of the concavo-convex shape B as the switch knob 1 is swung. More specifically, the concavo-convex shape B has a concave portion B1 at a position including the neutral position opening 14, concave portions B2 and B3 formed on the left and right sides of the concave portion B1, and a concave portion and a concave portion B1, respectively. It consists of the peak part between B1 and recessed part B3, and these recessed parts and peak parts are formed continuously.

  With the above configuration, when the switch knob 1 is swung from the neutral position to the first position, as shown in FIGS. 6 and 7, the action ball 13 (urging member) on the concave portion B1 passes over the mountain portion and passes through the concave portion B3. The switch knob 1 is held at the first position, and the first switch means 2a is pressed to transmit an ON signal. Similarly, when the switch knob 1 is swung from the neutral position to the second position, the action ball 13 (urging member) on the recess B1 passes over the mountain and reaches the recess B2, and the switch knob 1 Is held at the second position, and the second switch means 2b is pressed to transmit an ON signal.

  When the switch knob 1 is swung from the first position or the second position to the neutral position, as shown in FIGS. 1 and 2, the action ball 13 (biasing member) in the recess B2 or B3 exceeds the peak portion. The switch knob 1 is held in the neutral position and the third switch means 2c is pressed by the action ball 13 (biasing member) fitted in the neutral position opening 14. An on signal is transmitted.

  According to the above-described embodiment, only when the switch knob 1 is in the neutral position, the action ball 13 (biasing member) is inserted to enable pressing against the third switch means 2c. In any of the position, the second position, and the neutral position, a predetermined switch means (first switch means 2a, second switch means 2b, or third switch means 2c) can be pressed to transmit an ON signal and The dynamic switch device can be reduced in size.

  Further, the case member C2 has a concavo-convex shape B formed on the periphery including the neutral position opening 14, and the action ball 13 (the biasing member) is provided on the upper surface of the concavo-convex shape B as the switch knob 1 is swung. Therefore, the action ball 13 (the urging member) can have both a pressing operation function for the third switch means 2c in the neutral position and a moderation function, each of which is a separate member. As compared with the one provided with the oscillating switch device, the swing type switch device can be further downsized.

  Further, the switch knob 1 has a third extending portion c extending toward the third switch means 2c, and an action ball 13 (biasing member) is disposed on the third extending portion c. Therefore, the third switch means 2c can be more reliably pressed by the action ball 13 (biasing member) when the switch knob 1 is in the neutral position. Instead of the action ball 13 according to the present embodiment, a biasing member of another form (for example, a pin-like member) biased toward the third switch means 2c may be used. Alternatively, other urging means for urging the urging member downward may be used.

  Further, the switch knob 1 has a first extending portion a extending toward the first switch means 2a and a second extending portion b extending toward the second switch means 2b. The case member C2 includes a first position opening 15a that allows the first extending portion a to press the first switch means 2a when the switch knob 1 is in the first position, and a second extension when the switch knob 1 is in the second position. Since the setting portion b is formed with the second position opening 15b that allows the second switch means 2b to be pressed, the first switch means 2a when the switch knob 1 swings to the first position or the second position. Alternatively, the second switch means 2b can be pressed more reliably.

  Further, since the first switch means 2a, the second switch means 2b, and the third switch means 2c are composed of tact switches, they can have durability enough to withstand many switch operations, It is possible to make dust-proofing measures easier. Instead of the tact switch, switch means having another crimp contact structure (however, an ON signal can be transmitted at any of the first position, the second position, and the neutral position of the switch knob 1) may be used.

  As described above, the present embodiment has been described, but the present invention is not limited to this, for example, a concavo-convex shape is not formed on the periphery including the neutral position opening, and a means for separately providing moderation is formed, Alternatively, the present invention can also be applied to boots 3, 10 or packing 8, etc. that do not have waterproof means or dust-proof means. In the present embodiment, the present invention is applied to a swing type switch device disposed in a construction machine such as a wheel loader. For example, a general-purpose two-wheeled vehicle, four-wheeled vehicle (including an automobile), industrial machine, general ship It is good also as a rocking | fluctuation type switch apparatus arrange | positioned by these.

  As long as the switch knob is in the neutral position, if it is a swing type switch device provided with a case member in which a biasing member is inserted and a neutral position opening that allows pressing against the third switch means is formed, The present invention can also be applied to ones having different appearance shapes or those having other functions added.

DESCRIPTION OF SYMBOLS 1 Switch knob 2a 1st switch means 2b 2nd switch means 2c 3rd switch means 3 Boot 4a, 4b Pressed member 5a, 5b Assembling member 6 Pressed member 7 Assembling member 8 Packing 9 Substrate 10 Boot 11 Cover 12 Coil Spring 13 action ball (urging member)
14 Neutral position opening 15a First position opening 15b Second position opening B Uneven shape a First extension part b Second extension part c Third extension part C2 Case member

Claims (5)

A switch knob that is swingable between a first position, a second position, and a neutral position between the first position and the second position;
First switch means that can be pressed to transmit an on signal when the switch knob is in the first position;
Second switch means that can be pressed to transmit an on signal when the switch knob is in the second position;
Third switch means that can be pressed to transmit an on signal when the switch knob is in a neutral position;
An oscillating switch device capable of transmitting an ON signal when the switch knob is in the first position, the second position, and the neutral position,
A biasing member disposed on the switch knob and biased toward the third switch means;
Only when the switch knob is in a neutral position, a case member in which an opening for a neutral position that allows the pressing of the third switch means by inserting the biasing member is formed;
An oscillating switch device comprising:   The case member has a concavo-convex shape at the periphery including the neutral position opening, and the biasing member slides on the concavo-convex shape in accordance with the swinging operation of the switch knob, thereby reducing the degree of moderation. 2. The oscillating switch device according to claim 1, which is provided.   2. The switch knob includes a third extending portion extending toward the third switch means, and the urging member is disposed on the third extending portion. Or the rocking | swiveling switch apparatus of Claim 2.   The switch knob includes a first extending portion extending toward the first switch means, and a second extending portion extending toward the second switch means, and the case member includes The first extension portion is capable of pressing the first switch means when the switch knob is in the first position, and the second extension portion is the second switch means when the switch knob is in the second position. The oscillating switch device according to claim 3, wherein a second position opening is formed so as to be able to press the first position opening.   The oscillating switch device according to any one of claims 1 to 4, wherein the first switch means, the second switch means, and the third switch means comprise tact switches.

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