JPH0729535Y2 - Multidirectional switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an improvement of a multi-directional selector switch that switches contacts by vertically moving a push rod based on the operation of a knob that tilts in multiple directions by pressing operation. is there.

[Prior Art] Conventionally, as this type of technology, for example, there is a technology according to Japanese Utility Model Laid-Open No. Sho 63-12124 and a technology according to Japanese Patent Laid-Open No. 62-105327.

In these technologies, a knob supported by a push rod or a support pin tilts in multiple directions by pressing operation,
This is to turn the contacts on and off.

[Problems to be Solved by the Invention] In such a multidirectional switch, since the knob freely tilts in multiple directions, there is a slight gap between the knob and a case that houses the knob. However, the void that is provided in the horizontal direction with respect to the pushing operation direction of the knob causes a so-called rattling phenomenon in which the knob swings in the horizontal direction, resulting in poor operability.

[Means for Solving Problems] The present invention has been devised in view of the above problems, in which the push rod fitted in the case moves up and down based on the operation of the knob that tilts in multiple directions by the pressing operation, In the multidirectional switch for switching the contacts, the knob has a support made of a translucent resin material, an illumination window formed by exposing a part of the support from the knob body, and a support similar to the support. An elastic locking projection made of a translucent resin material, the locking projection being formed on the back surface of the support, and the case supporting the central position of the back surface of the knob. And a supporting protrusion protruding from the mounting surface,
The above problem is solved by providing the engaging hole into which the locking projection is elastically fitted.

[Operation] According to the above-described configuration, the push rod contact surface of the knob and the upper end of the push rod engage with each other with their horizontal movement restricted, so that the knob is restricted from swinging in the horizontal direction. Also, the tilting operation of the knob can be smoothly performed. In particular, the support provided on the knob and the locking projection are both made of a translucent resin material, so that the locking projection serves as a light guide. Therefore, the path of the illumination light emitted from the illumination lamp is not obstructed by the locking projection, and the illumination light can reach the illumination window, and the illumination window is clearly illuminated and displayed. Also, since the locking projection has elasticity and elastically fits into the locking hole, the knob can be assembled to the case with one touch, and the knob can be elastically tilted with respect to the case. It becomes possible to do.

[Embodiment] A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings, illustrating a remote control switch for a vehicle door mirror.

In FIGS. 1 and 2, reference numeral 1 denotes a case, which incorporates a multidirectional switch 2, a left / right selector switch 3 and a storage switch 4.

The multidirectional switch 2 controls tilting of the mirror surface of the door mirror, and is configured in association with the case 1 shown in FIG. In case 1, 1a is an operation surface and 1b is a mounting surface. At the center of the mounting surface 1b, a support portion 1d is formed by projecting a support projection 1c upward, and the back surface center position of the knob 5 is supported by the support projection 1c so as to be tiltable. The knob 5 is the knob body 5a
A support 5b made of a translucent milky white resin material is integrally formed on the back surface of the. The knob 5 has a second
In the figure, four illumination windows 5c are formed in the vertical and horizontal directions, and the illumination light from an illumination lamp 6 described below is led out. A light guide hole 1e is formed through the adhesive surface 1b of the case 1 at a position substantially corresponding to each of the illumination windows 5c. The support 5b of the knob 5 has four locking projections 5d on its back surface.
The locking protrusion 5d is made of a resin material having the same light-transmitting property as that of the support 5b, and is integrally shaped by protruding like a cantilever with respect to the support 5b. Therefore, the locking protrusion 5d
Bends around the connection position with the support 5b as a fulcrum, that is, has elasticity. Therefore, the mounting surface 1b
The locking projection 5d can be elastically fitted into the locking hole 1f formed through the hole. This allows the knob 5 to be assembled to the case 1 with one touch. Further, the knob 5 can be elastically tilted with respect to the case 1.

Reference numeral 7 denotes four push rods, which are vertically movably inserted in rod holes 1g penetratingly formed on the mounting surface 1b, and have spherical upper ends 7a formed on the back surface of the support 5b of the knob 5 so as to be attached to the push rods. It is in contact with the contact surface 5e. Each push rod contact surface 5e is formed in a semicircular groove shape whose end surface extends toward the center of the knob 5. Therefore, the knob 5 is restricted in horizontal movement by the abutment of the upper end 7a of each push rod 7, which is allowed to move up and down, and the push rod abutment surface 5e. In this case, the combined structure of the upper end 7a and the push rod contact surface 5e constitutes a restricting engagement means for restricting and engaging the horizontal movement with each other.

Reference numeral 8 is a rubber contact made of an electrically insulating rubber material or the like. Eight contact portions 8a are continuously provided on the same circumference, and movable contacts 9 are fixed to the lower surfaces thereof. A pressing portion 7b is formed at the lower end of each push rod 7, and is placed on the key top of each of the two contact portions 8a.

Reference numeral 10 denotes a printed board, which is fitted to a base 12 having a connector 11. The base 12 is fitted to the case 1. On the printed board 10, the movable contact 9 of each of the above contact portions 8a is provided.
A fixed contact pattern (not shown) is formed by printing so as to face with, and the illumination lamp 6 is attached to the central position of the rubber contact 8.

The left / right selector switch 3 is for switching the control of the left and right door mirrors, and usually has a configuration of a seesaw switch which is self-held at the neutral position of the left / right selector switch 3 shown in FIG. The storage switch 4 switches each door mirror between a storage position and a use position, and usually has a configuration of a seesaw switch that holds itself in a neutral position. As shown in FIG. 1, the case 1 is provided with a water drainage hole 1h for letting out water droplets that have entered between the operating surface 1a of the case 1 and the knobs of the switches 3, 4, 5 to the outside. .

The operation of the above configuration will be described.

In the multidirectional switch 2, the knob 5 is supported by the support protrusions 1c while being kept horizontal by the push rods 7 mounted on the contact portions 8a. In this state, each movable contact 9 is non-conductive.

Now, when the knob 5 is pressed at one of the upper, lower, left, and right ends in FIG. 2, the knob 5 tilts about the supporting projection 1c as a fulcrum and only one push rod 7 is lowered. Then, the push rod 7 presses the corresponding contact portion 8a against the elastic force to make the movable contact 9 conductive. After that, when the pressing force of the knob 5 is released, the push rod 7 becomes contact part.
Raised by the elastic force of 8a, the knob 5 is automatically returned to the horizontal state. At this time, the movable contact 9 becomes non-conductive.

Next, when the center position of the knob 5 is pressed, the knob 5 is supported by the support protrusion 1c and therefore does not descend or tilt. Therefore, at this time, all the movable contacts 9 are non-conductive. Thus, even if the center position of the knob 5 is pressed, all the movable contacts 9 do not conduct at the same time, the short-circuit phenomenon between the power supply and the ground can be prevented, and the fixed contact pattern layout can be set easily. it can.

Further, when the knob 5 is pressed at one end in the upper right, lower right, lower left, upper left direction in FIG. 2, that is, one end in the so-called diagonal direction, the knob 5 tilts with the support protrusion 1c as a fulcrum, and the corresponding two push rods 7 are pushed. To lower. Therefore, the four contact portions 8a corresponding to these two push rods 7 are pressed and the movable contact 9 is brought into conduction.

When it is desired to set the tilting direction of the knob 5 to up to 7 directions, a restricting protrusion 1i is provided at a desired position on the mounting surface 1b of the case 1 as shown in FIG. It may be configured to abut.

In this way, by pressing the knob 5 in multiple directions, the corresponding movable contact 9 can be made conductive.

The illumination light of the illumination lamp 6 passes through the light guide hole 1e and is led out from the illumination window 5c regardless of the tilted state of the knob 5.

Next, a circuit example in which the multidirectional switch 2 having the above configuration is applied to a switch for controlling a door mirror will be described with reference to FIG.

Reference numeral 12 is a switch block, which includes the multidirectional switch 2, the left / right changeover switch 3 and the storage switch 4,
a to 1 are terminals that are connected to the outside. Further, 6 is an illuminating lamp having the above configuration. VDD is the positive pole of the DC power supply.

In the normal state, the multi-direction selector switch 2 is OFF, the left / right selector switch 3 is in the neutral position N, and the storage switch 4 is in the neutral position No. When the light switch 13 is turned on, the lamp 6 is turned on.

When the left and right door mirrors stored in the vehicle body are projected in a usable state, the storage switch 4 is tilted to the use position.

Therefore, the terminals a and i and the terminals d and j are electrically connected, and the right side door mirror storage drive motor MR1 and the left side door mirror storage drive motor ML1 are rotated in the forward direction to project the door mirrors. When the retracting switch 4 is tilted to the retracted position, the motors MR1 and ML1 reversely rotate and retract the respective door mirrors.

When the left / right selector switch 3 is tilted to the R position, electrical connection is established between the internal terminal X and the terminal f and between the internal terminal Y and the terminal e, and the right side door mirror can be controlled. In this state, when the knob 5 of the multidirectional switch 2 is pressed to the right position, the terminals a and b are electrically connected and the internal terminal Y and the terminal d are electrically connected, so that the motor MR2 is normally rotated and the mirror surface of the right side door mirror is moved to the right. Tilt in the direction. At the same time, when the knob 5 is pressed to the left position, conduction is established between the terminal a and the internal terminal Y and between the terminals b and d,
The motor MR2 reverses and tilts the mirror surface of the right side door mirror to the left. When the knob 5 is pushed to the upper position, the terminals a and the internal terminals X and the terminals c and d are electrically connected, and the motor MR3 is normally rotated to tilt the mirror surface of the right side door mirror upward. When the knob 5 is pushed to the lower position, the terminals a and c are electrically connected to each other and the internal terminal X and the terminal d are electrically connected to each other, and the motor MR3 is rotated in the reverse direction to tilt the mirror surface of the right door mirror downward. Further, when the knob 5 is pushed to the upper left side, it is switched to both the right position and the upper position shown in FIG. 6, and the motor MR2 and the motor MR3 are normally rotated, so that the mirror surface of the right door mirror tilts to the upper right direction. Similarly, when the knob 5 is pressed to the lower right side, it moves to the right position and the lower position,
Push the knob 5 to the upper left to move it to the left and upper positions.
When is pressed to the lower left side, it is switched to the left position and the lower position respectively, and the mirror surface of the door mirror is tilted in an oblique direction corresponding to the operating direction of the knob 5 by the combination of the operations of the motors MR2 and MR3.

On the other hand, if the left / right selector switch 3 is tilted to the L position,
The internal terminal X and the terminal h are conducted, and the internal terminal Y and the terminal g are conducted,
The left side mirror can be controlled.

[Effects of the Invention] As described in detail above, according to the present invention, since at least one of the knob and the push rod joined to the knob is provided with the restricting engagement means for restricting the horizontal movement, the knob is provided. The swinging movement in the horizontal direction is restricted, and the tilting operation of the knob becomes smooth. In particular, the support provided on the knob and the locking projection are both made of a translucent resin material, so that the locking projection serves as a light guide. Therefore, this locking protrusion does not obstruct the path of the illumination light emitted from the illumination lamp,
The illumination light can reach the illumination window, and the illumination window can be clearly illuminated and displayed. Further, since the locking projection has elasticity and elastically fits into the locking hole, the knob can be assembled to the case with one touch, and the knob can be elastically tilted with respect to the case. There is an effect that you can.

[Brief description of drawings]

1 and 6 show an embodiment of a multidirectional switch according to the present invention. FIG. 1 is a sectional view, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a case of FIG. 4 is a partial plan view of FIG. 4, FIG. 4 is an enlarged sectional view taken along the line AA in FIG.
1 is an enlarged sectional view taken along the line BB in FIG. 1, and FIG. 6 is an electric circuit diagram when the multidirectional switch according to the present invention is applied to a mirror control switch. 1 ... Case, 2 ... Multidirectional switch, 5 ... Knob, 5e ... Push rod contact surface, 7 ... Push rod, 7a ... Upper end, 8 ... Rubber contact, 9 ... Movable contact.

Claims (1)

[Scope of utility model registration request] 1. A multidirectional switch for switching a contact (9) by vertically moving a push rod (7) fitted in a case (1) based on the operation of a knob (5) which tilts in multiple directions by a pressing operation. The knob (5) includes a support (5b) made of a translucent resin material, and an illumination window (5c) formed by exposing a part of the support (5b) from the knob body (5a). A locking projection (5d) made of a transparent resin material similar to that of the support (5b) and having elasticity, the locking projection (5d) formed on the back surface of the support (5b). 5d), and the case (1) includes a support protrusion (1) that supports the center position of the back surface of the knob (5).
c), the supporting protrusion (1) protruding from the mounting surface (1b)
c) and a locking hole (1f) into which the locking projection (5d) is elastically fitted, a multidirectional switch.