JPH0336013Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] When one operator is pressed in, this invention unlocks the other operators that are locked in the pressed position and forcibly moves them back to their original positions. This invention relates to an interlocking type pushing device.

[Prior art]

Conventionally, when one operator is pushed in, the other operators that are locked in the pressed position are forcibly unlocked and returned to their original positions. There is a built-in stopper portion that prevents the device from being pushed into the push-in position at the same time. However, in the switch configured as described above, when one operator is pushed in, it interferes with the above-mentioned stopper section just before it reaches the pushed-in position, and as a result, the other operators locked at the pushed-in position is forcibly moved in the unlocking direction by the stopper portion immediately before the lock body is unlocked. For this reason, the lock body is forcibly removed from the tip of the lock step provided on the operator, which has the disadvantage that the lock step is prone to wear and has a short lifespan.

[Purpose of the invention] The invention was developed in view of the above-mentioned circumstances, and its purpose is to prevent the stopper from interfering when the operator is pushed in, to prevent the lock step from wearing out, and to extend the life of the lock. An object of the present invention is to provide an interlocking type pushing device that can significantly extend the length of time.

[Summary of the invention] The present invention includes a plurality of controls, a guide section provided on each of these controls, a lock step section continuous to one end of the guide section, a lock body, and two linking rods that link the lock bodies with each other. Equipped with a stopper part that prevents the controls from being pushed in at the same time,
When one operator is pushed in, one lock body is guided by the guide section and swung in one direction, and based on this, the other lock body is forced in one direction via the link rod. The guide portion is configured such that when the lock body is swung, the other lock body is disengaged from the lock shoulder portion at a position just before the one lock body comes off from one end of the guide portion and engages with the lock shoulder portion. A feature is that a release portion is provided near one end.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a horizontally long machine frame, on which three switch cases 2 serving as bodies are installed in a row. 3,3
and 4 are operating elements slidably disposed within each switch case 2, and these are each biased in the direction of arrow A by a spring 5. Reference numeral 6 denotes a recess formed on one side of each operator 3, in which an engagement step 7 as a lock step and an inclined guide portion 8 are provided, and one end 8a of the guide portion 8 is provided with an engagement step 7 as a lock step. It is located above part 7 by a dimension a in FIG. 9
4 is a release part provided to extend linearly from the engagement step part 7 to the left in FIG. , one end 9a of this is the guide part 8
As shown in FIG. 4, the guide portion 8 is located to the right of the one end 8a by a dimension d, and is continuous with the guide portion 8 via a step h. Reference numeral 10 denotes a recess formed on one side of the operator 4, in which a sloped lock release portion 11 is provided. Reference numeral 12 denotes a lock body with both ends of a wire rod bent into an L-shape, and a bent part 1 formed at the base end of the lock body.
2a is rotatably inserted into a hole 2a provided in the switch case 2, and engaging portions 12b formed at their tips are inserted into the recesses 6, 6 and 10. Reference numeral 13 denotes a substantially L-shaped leaf spring whose one end is fitted into the slit hole 2b of each switch case 2, and whose other ends elastically abut approximately the middle portion of the lock body 12, thereby locking the lock body. 12 into recesses 6, 6 and 10
It is biased in the direction. Reference numeral 14 denotes a linking rod disposed approximately parallel to the machine frame 1, which is always biased in the direction of arrow B by a spring 15, and the locking body 12 is engaged with each elongated hole 14a provided therein. The vicinity of the portion 12b is penetrated, and therefore each lock body 12 is biased to rotate in the direction of arrow C. On the other hand, 16,1
Reference numeral 6 denotes a convex portion formed on the other side surface of the operating elements 3, 3, each of which is provided with an inclined regulating surface 16a.
17 is an inclined surface 17 corresponding to the regulating surface 16a at both ends.
A stopper plate serving as a stopper portion is provided with a bridge between the switch cases 2 and 2 so as to be movable in the directions of arrow B and counter-arrow B. Further, 18 is a recess 3 formed on the other side of each operator 3.
The movable contacts 19 are inserted into the movable contacts 18, and the fixed contacts 19 are opposed to the movable contacts 18.
These are insert molded into an insulator attached to the switch case 2.

Next, the operation of the above configuration will be explained. first,
As shown in FIG. 1, when the left operator 3 is pushed in from a state where all the operators 3, 3 and 4 are in their original positions, the lock body 12 facing the operator 3 is moved to the guide portion. 8 and is moved from the position shown in FIG. 4 as shown by arrow a, and the lock body 12 is rotated in the opposite direction of arrow C. and,
When the operator 3 is pushed further, the lock body 1 is locked.
2 reaches the position shown in FIG. The position shown in Figure 4 is reached.
When the push-in of the operator 3 is released in this state, the locking body 12 engages with the engagement step 7 as shown in FIG. (See Figure 3). In this way, when one operator 3 is pushed in, the regulating surface 16a of that operator 3 comes into contact with the left inclined surface 17a and moves the stopper plate 17 in the direction of arrow B, but the right inclined surface 17a faces the right regulating surface 16a with a gap shown by dimension b.

Next, when the right operator 3 is pressed,
The lock body 12 facing the operator 3 is guided by the guide portion 8 and moved from the position indicated by '' in FIG. 3 as indicated by the arrow a, and the lock body 12 is rotated in the opposite direction of the arrow C. Then, the linking rod 14 moves in the opposite direction of arrow B against the spring 15, and moves the locking body 12, which engages with the engagement step 7 of the left operator 3, along the release section 9 as shown in FIG. and move it in the direction of arrow c. When the lock body 12 reaches the position indicated by * in FIG.
2 is one end 9 of the release part 9 as shown in FIG.
a, and is removed from the release portion 9 to release the lock on the left operator 3, so that the left operator 3 is returned to its original position by the elastic force of the spring 5. Furthermore, when the right operator 3 is pushed in and the lock body 12 reaches the position shown in FIG. The lock body 12 then rotates back in the direction of arrow C and reaches the position indicated by '' in FIG. When the right-hand operator 3 is released from being pressed in this state, the locking body 12 engages with the engagement step 7 as shown by '' in FIG. 4, thereby locking the operator 3 in the pressed position. Ru. Therefore, when the right-hand operator 3 is pushed in and the lock body 12 facing the operator 3 reaches the position indicated by * in FIG. The control surfaces 16a, 16a provided on both the controls 3, 3 are in close proximity to each other, but in this state, the lock on the left control 3 is released, so the right control 3 is pushed in further. The lock body 12 facing the operator 3 is the fourth
The stopper plate 17 reliably prevents any interference between the position indicated by * and the position indicated by '' in the figure.

Note that when the operator 4 is pushed in with either the left or right operator 3 locked at the push-in position, the linking rod 14 resists the spring 15 due to the action of the lock release part 11. Since the lock body 12 is moved in the opposite direction of arrow B, the lock body 12 is engaged with the engagement step 7.
is moved in the direction of arrow C and removed from the engagement step 7 via the release portion 9, so the operator 3, which was locked at the pushed-in position, is returned to its original position as shown in FIG.

Further, the movable contacts 18 attached to the respective operating elements 3, 3 are changed in contact with the fixed contacts 19 between the operating elements 3, 3 in the original position and in the pushed-in position.

In the above configuration, the lock body 12 facing the other operator 3 locked at the lock position is moved at a position immediately before the lock body 12 facing the operator 3 to be pushed is removed from the one end 8a of the guide portion 8. Since the lock is released from the engagement step portion 7 via the release portion 9, the locked operator 3 is released from the stopper plate 1.
7 does not cause interference such as forcibly moving the lock body 12 in the unlocking direction, and therefore the lock body 12 is not forcibly removed from the engagement step 7 unlike in the conventional structure. From one end 8a of the guide portion 8
It is also possible to reliably prevent the one end 9a of the release portion 9 from being worn out.

[Effects of the invention] As is clear from the above description, the present invention includes a plurality of operators, a guide portion provided on each of these operators, a lock stepped portion continuous to one end of the guide portion,
Lock body, linkage rod that links the lock body with each other, 2
In a device equipped with a stopper part that prevents two operators from being pushed in at the same time, when one operator is pushed in, one lock body is guided by the guide part and swivels in one direction. When the other lock body is forcibly swung in one direction via the linking rod based on this movement, the one lock body comes off from one end of the guide part and is at a position just before engaging with the lock stepped part. Since a release part is provided near one end of the guide part to disengage the other lock body from the lock stepped part, the stopper part does not interfere when the operator is pushed in, and the lock stepped part is prevented from wearing out. Therefore, it is possible to provide an interlocking type pushing device that can significantly extend its life without causing any problems.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; Fig. 1 is a partially cutaway front view, Fig. 2 is a rear view with the insulator removed, and Fig. 3 shows a different function from Fig. 1. FIG. 4 is an enlarged front view of the main parts, FIG. 5 is a sectional view taken along the line - in FIG. 4, and FIG. 6 is an enlarged perspective view of the main parts. In the drawing, 2 is a switch case (body), 3 and 4 are operating elements, 7 and 8 are an engagement stage and a guide part (lock stage), 9 is a release part, 11 is a lock release part, and 12 is a lock body. , 13 is a leaf spring, 14 is a linking rod, and 17 is a stopper plate (stopper portion).

Claims (1)

[Scope of utility model registration request] A plurality of operators are provided in the body so as to be able to be pushed and moved, and are each biased in a direction opposite to the pushing direction by spring means, an inclined guide portion provided on one side of each of these operators, and a sloped guide portion provided on one side of each of these operators, and a lock stepped portion continuous at one end; and a rocking step provided on the body so as to be swingable in correspondence with each of the operating elements, so that when the operating elements are pushed against the spring means, they are guided by the guide portion. A lock body that swings in one direction and when it comes off from one end of the guide part swings back in the other direction and engages with the lock stepped part, and a lock body that prevents the swing of one lock body in one direction from moving in the other direction. a linkage rod which is movably provided on the body and which restricts the pushing of both controls at a position before the lock body comes off from one end of the guide part when the two controls are pushed in at the same time; The stopper portion provided on the body and one lock body are guided by the guide portion and swung in one direction, and based on this, the other lock body is forcibly swung in one direction via the link rod. The other lock body is provided continuously near one end of the guide part so that the other lock body is disengaged from the lock stepped part at a position just before the one lock body comes off from the one end of the guide part when the lock body is moved. An interlocking type pushing device comprising a release part and a release part.