JPH0140103Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a switch device in which two switch mechanisms are individually actuated by operators.

(Prior Art) In conventional push-operated switch devices, that is, push-button switch devices, a plurality of switch mechanisms are provided with push buttons in a one-to-one relationship, and the push buttons held in the push-in position are returned to their original positions. To put the switch mechanism into an inoperative state, a push button dedicated to return is pressed to operate a cancel plate, thereby releasing the push button held in the pushed-in position. In addition, in order to prevent two switch mechanisms from being activated at the same time, when one push button is held in the push-in position and another push button is pushed, the push button The cancel plate is operated in conjunction with the push button to release the push button held in the push-in position.

(Problems to be Solved by the Invention) However, the conventional push-button switch device described above requires a push button exclusively for return, resulting in a large size. However, if a push button dedicated to return is omitted, one push button will always be held in the depressed position, making it impossible to put all the switch mechanisms into an inactive state.

This idea was made in view of the above circumstances.
The purpose is to provide a switch device that does not require an operating member dedicated to return, eliminates the possibility that two switch mechanisms will be activated at the same time, and can also place all switch mechanisms in an inactive state.

[Structure of the invention] (Means for solving the problem) The switch device of the invention has first and second operators arranged side by side in a case so that they can be operated by pressing. A first and second switch mechanism is provided on one side of each of the operating elements to urge the child in a direction opposite to the pressing direction by the urging means, and to operate based on the pressing operation of each of the operating elements. A locking member is provided in the case, which is formed with a cam protrusion, and engages with the cam protrusion each time the operating element is pressed, and repeats an action of holding the operating element in the pushed position and an action of releasing the holding. An actuating member is provided corresponding to each operator, and an actuating member is provided between the respective operators so as to be slid in a direction perpendicular to the pressing operation direction in response to a pressing operation of each operator. The slide displacement presses the lock member corresponding to the non-operating side operator, displacing the lock member so as to disengage it from the cam protrusion, and returning it to the held release state.

(Function) According to the above-mentioned means of the present invention, each locking member repeats the operation of holding the first and second operating elements in the pushed position and the operation of releasing the holding for each pressing operation of the first and second operating elements. The holding of the operating element held in the push-in position can be released by pressing the operating element. Additionally, when one operator is held in the pushed-in position and another operator is pushed in, the actuating member slides and forcibly releases the operator held in that pushed-in position. Therefore, there is no possibility that the two switch mechanisms will be on at the same time.

(Example) An example of the present invention will be described below based on the drawings. Reference numeral 1 designates a case with a cover plate 2 attached to an opening on the top surface; 3 and 4 designate first and second operators arranged in parallel in the case 1 so as to be slidable in the vertical direction; Both the operators 3 and 4 are biased upward by biasing means such as compression springs 5, 5, and push buttons 6 and 7 fitted in the upper ends 3a and 4a.
It is designed so that it can be pressed downward through the . Reference numerals 8 and 9 indicate holding mechanisms for holding the respective operating elements 3 and 4 in the pushed-in position, and both holding mechanisms 8 and 9 include a locking member 10 made of a spring wire attached to the case 1 side and one side of the operating elements 3 and 4. The cam protrusion 11 is formed in the cam protrusion 11. That is, as shown in FIG. 4, the cam protrusion 11 is provided in a protruding manner within a recessed step 12 formed on one side of the operating elements 3, 4.
The surface having the shaped protrusion 13 and the recessed step 12 form an inclined surface 14.
are connected by. On the other hand, the lock member 10
is a protrusion 1a with a coil portion 10a protruding from the case 1;
At the same time, one winding end of the coil portion 10a is extended upward to form a substantially L-shaped bent portion 10b at its tip. and each holding mechanism 8,
The locking member 10 of 9 always urges the bent portion 10b in each direction of arrows A and B by its own elastic force, and the bent portion 10b is always located at the recessed step immediately below the cam protrusion 11. It is in elastic contact with the inner surface of 12. When the respective operators 3 and 4 are pressed down, the bent portion 10b of each locking member 10 slides along the circumferential side of the cam protrusion 11, rides up the slope 14, and finally forms an L-shaped protrusion. 13 at even intervals to hold the operating members 3 and 4 in the push-in position (the movement path of the bent portion 10b is shown by arrow C in FIG. 4). When each of the operating elements 3 and 4 is pressed down from this held state and pushed down slightly from the pushed-in position, the bent portion 10b of the locking member 10 is moved to the L position.
The controls 3 and 4 are released from the shaped protrusion 13 and released, and then the controls 3 and 4 are pushed up by the compression spring 5 and slide along the inner surface of the recessed step 12 to return to their original positions. (The moving path of the bent portion 10b is shown by arrow D in FIG. 4). As is clear from the above description, the lock member 10 configured as described above, each time the operating elements 3 and 4 are pressed,
an operation of holding the controls 3 and 4 in the push-in position;
The operation of releasing the hold is repeated alternately. 15 and 16 are first and second switch mechanisms operated by the first operator 3 and second operator 4, respectively;
16, as shown in FIG. 2, is composed of a plurality of fixed contacts 17 provided on the case 1 side and movable contacts 18 provided on the operating elements 3 and 4 side. Reference numeral 19 denotes a plate-shaped actuating member, which is held in a guide hole 20 formed in the case 1 so as to be slidable in the left-right direction, and is located between the two operators 3 and 4. Both left and right ends of the actuating member 19 are provided with guide holes 2.
0, and both of its protruding end surfaces are brought into contact with each lock member 10. A thin spring plate portion 19a is formed in a curved manner in the center of the actuating member 19 so as to come into elastic contact with the inner surface of the guide hole 20 to eliminate rattling. On the other hand, an abutment element 21 is protruded from one side of each operator 3, 4 and is located near the upper part of the cam protrusion 11. When each operator 3, 4 is pressed down, each operation can be performed. The abutting elements 21 of the elements 3 and 4 connect their inclined lower surfaces to the left and right slopes 22 and 2 of the actuating member 19, respectively.
3, and move the actuating member 19 in one direction or the other direction (in the direction of arrow E for pressing down the operator 3,
When the operator 4 is pressed down, it is displaced in the direction of arrow F). In addition, 24 and 25 are the respective push buttons 6,
7 is fitted with lenses of different colors; 26 is a light emitting diode corresponding to each lens 24, 25; each light emitting diode 26 is operated by each of the switch mechanisms 15, 16 when each operator 3, 4 is pressed down; It is energized and emits light.

Next, the operation of the switch device having the above structure will be explained by applying it to the case where fuel supply to the engine of an automobile is controlled. First, the 5th section shows the electrical connection.
In the figure, 26 is a fuel supply system, which is a normal operation circuit 27 for operating the engine in normal conditions;
It has a high output operation circuit 28 that operates at high output and a low fuel consumption operation circuit 29 that operates at low fuel consumption. and both switch mechanisms 15 of the switch device,
16 are both inactive, the normal operation circuit 27 is driven, when the first switch mechanism 15 is activated, the low fuel consumption operation circuit 29 is activated, and when the second switch mechanism 16 is activated, the high output operation circuit 2 is activated.
8 is now driven.

When the left push button 6 is pressed from the state shown in FIG. The actuating member 19 is displaced in the direction of arrow E (see FIG. 6), and the locking member 10 of the holding mechanism 9 is
is deflected in the opposite direction of arrow B. When you release your finger from the push button 6, the first operator 3 rises slightly due to the spring force of the compression spring 5, and as a result, the bent portion 10b of the locking member 10 of the holding mechanism 8 is brought into contact with the corner of the L-shaped protrusion 13. When engaged, the first operator 3 is held in the pushed-in position shown in FIG. In this state, the contact piece 21 of the first operator 3 is separated from the actuating member 19, and the actuating member 19 is connected to the locking member 10 of the holding mechanism 9.
It is returned to its original position by the spring force. By pressing the first operator 3 as described above, the first switch mechanism 15 is operated, and the engine is switched from normal operation to fuel-efficient operation. When the first operator 3 is pressed again via the push button 6 in the state shown in FIG. 7, the first operator 3 is released from the locking member 10 of the holding mechanism 8, and It is pushed up and returns to its original position. Note that when the first operator 3 is pressed down from the state shown in FIG. As it returns, it is urged in the direction of arrow F by the locking member 10 of the holding mechanism 9 and returns to its original position. The return of the first operator 3 causes the first switch mechanism 15 to become inactive, so that the engine is returned to normal operation.

Next, when the second operator 4 is pressed via the push button 7 on the right side, the second operator 4 is activated by the actuating member in the final process of downward movement, similar to when the first operator 3 is pressed. 19 in the direction of arrow F to deflect the locking member 10 of the holding mechanism 8 in the opposite direction of arrow A,
Finally, the locking member 10 of the holding mechanism 9 holds the holding mechanism 9 in the pushed-in position, thereby activating the second switch mechanism 16 and switching the engine to high output operation. In this state, when the second operator 4 is pressed again via the push button 7, the second operator 4 returns to its original position in the same way as the first operator 3, and the second operator 4 returns to its original position in the same way as the first operator 3. The switch mechanism 16 becomes inactive and the engine returns to normal operation.

Incidentally, while one of the two operators 3 and 4 is held in the push-in position, the other one may be pressed, but even in this case, both switch mechanisms 15 and 16 are not activated. There will be no inconvenience caused by the actuation. That is, for example, if the second operator 4 is pressed while the first operator 3 is held in the push-in position as shown in FIG. In the final process of movement, the actuating member 19 is
is displaced in the direction of arrow F, and the locking member 10 of the holding mechanism 8 is deflected in the opposite direction of arrow A. Then, the bent portion 10b of the locking member 10 is removed from the L-shaped protrusion 13 of the first operator 3 as shown by the two-dot chain line in FIG. The hold on the first operator 3 is forcibly released without going through the route shown in FIG. As a result, the first operator 3 automatically returns to its original position due to the spring force of the compression spring 5, returning the first switch mechanism 15 to its inoperative state. After this,
The second operator 4 is held in the pushed-in position by the locking member 10 of the holding mechanism 9, and the second switch mechanism 16 is activated. Therefore, there is no problem in that both the switch mechanisms 15 and 16 are activated, causing the fuel supply control device 26 to malfunction.

Additionally, both the operators 3 and 4 may be pressed at the same time, but in this case, the contact elements 21 of both the operators 3 and 4 will press the actuating member 19 against each other, causing the arrows to appear. Since the forces in the E and F directions are balanced, both the operating elements 3 and 4 can be stopped from descending at a position above the pushed-in position without reaching the pushed-in position. Therefore, both switch mechanisms 15, 16 are maintained in an inoperative state, and both are prevented from being activated.

[Effects of the invention] As explained above, the invention forms a cam protrusion on one side of each of the first and second operators, and
A lock member is provided corresponding to each operator, and each lock member engages with its cam protrusion each time the operator is pressed to hold the operator in the pushed position, and the lock member releases the holding. Since it is configured to repeat this, when the operator held at the push-in position is pressed, the operator returns to its original position. Therefore, unlike in the past, there is no need for an operator dedicated to return, making it possible to downsize the entire switch device, and even without an operator dedicated to return, it is possible to return all the operators and eliminate the entire switch mechanism. can be put into operation. In addition, an actuating member is provided between each operator so as to be slid in a direction orthogonal to the pressing direction in response to the pressing operation of each operator, and the sliding displacement of the operating member causes the non-operating side to move. Since the locking member corresponding to the operator is pressed to displace the locking member from engagement with the cam protrusion and return to the released state, the first and second operators can be moved. Even if the two switch mechanisms are operated at the same time, or even if one operator is held in the push-in position and the other is pushed in, there is no risk that the two switch mechanisms will be activated at the same time, and the electrical equipment can be operated. It is possible to obtain the excellent effect of being able to operate normally at all times, and in addition, the above-mentioned effect can be achieved by providing one operating member slidably between the first and second operating elements. It can be obtained with an extremely simple configuration and can contribute to cost reduction.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a longitudinal sectional view of the whole, FIG. 2 is a sectional view taken along the line - in FIG. 1, FIG. 3 is a plan view of the whole, and FIG. 4 is a lock. An enlarged perspective view of the vicinity of the cam protrusion of the mechanism, FIG. 5 is an electrical wiring diagram, FIG. 6 is an overall vertical cross-sectional view showing the state in which the operator is in the middle of being pushed in, and FIG. 7 is when the operator is held in the pushed-in position. FIG. In the figure, 1 is a case, 3 and 4 are first and second operators, 5 is a compression spring (biasing means), 10 is a lock member, 11 is a cam protrusion, 15 and 16 are first and second operators. 19 is an operating member.

Claims (1)

[Scope of utility model registration request] a case, first and second operators arranged in parallel to the case so as to be pressable and biased in a direction opposite to the pressing direction by a biasing means; and actuated based on the press operation of each of these operators. cam protrusions formed on one side of each of the operating elements, and a cam protrusion provided in the case corresponding to each of the operating elements, each of which responds to each pressing operation of each operating element. a locking member that engages with the cam protrusion and repeats an operation of holding the operator in the pushed-in position and an operation of releasing the holding; and a locking member that is located between each of the operators and responds to the pressing operation of each operator. The lock member is provided so as to be slid in a direction perpendicular to the direction of the pressing operation, and the lock member corresponding to the non-operating side operator is pressed by the displacement, and the lock member is disengaged from the cam protrusion. and an actuating member that is displaced to return to a held release state.