JPH0365604B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a switch, and relates to a switch equipped with a timer unit.

(Prior Art) In a conventional switch of this kind, a reversing mechanism in which a movable member having a movable contact piece that approaches and separates from a fixed contact piece is swingably supported by a torgue mechanism is proposed, for example, in the Japanese Patent Publication No. 57 The structure described in JP-A-39034 is known.

(Problems to be Solved by the Invention) In the conventional structure described above, even if the pressing force applied to the movable element during the switching operation of the switch is applied to the reversing mechanism, this reversing mechanism is supported at the bottom of the main body, so there is no problem. However, when a timer unit is incorporated into a switch, a structure in which the mover is disposed above the timer etc. may be considered due to space constraints. However, in such a structure, the timer unit that is dropped into the unit and the reversing mechanism provided above the timer unit must be fixed, and a structure for fixing the timer unit and the reversing mechanism, respectively, is required. The structure becomes complicated, it becomes difficult to fix each part within a narrow space, the entire switch becomes large, and there is a problem in that it is difficult to assemble the timer unit and the reversing mechanism in order to fix them respectively.

The present invention has been made in view of the above problems, and includes a timer unit that is dropped and stored at the bottom of the reversing mechanism and is held by a support frame of the reversing mechanism extending from the terminal, and the reversing mechanism is held by the timer unit at the bottom. To provide a switch which can be assembled compactly without requiring a structure for holding a timer unit and a reversing mechanism, and which has improved ease of assembly.

[Structure of the invention]

(Means for Solving the Problems) The switch of the present invention includes a main body having an opening, a timer unit storage section and a terminal storage section communicating with the opening, and a terminal disposed in the terminal storage section. A reversing mechanism disposed on the opening side of the main body, including a support frame extending from the terminal, a mover connected to the support frame, and a spring connected to the mover, and the operation of the reversal mechanism. and a timer unit that is fixedly stored in the timer unit storage section and drives the switch mechanism after a predetermined period of time, and the timer unit has the support frame on the top thereof. This is supported in the timer unit housing portion.

(Function) The switch of the present invention stores the timer unit by dropping it into the timer unit storage section from the opening of the main body, stores the terminal into the terminal storage section from the opening of the main body, and stores the timer unit from the opening of the main body into the terminal storage section. The support frame of the reversing mechanism is dropped into contact with the stored timer unit, and the timer unit is held by the reversing mechanism, and the reversing mechanism is held by the lower timer unit, which individually holds the reversing mechanism and the timer unit stored at the bottom. This simplifies the structure and improves ease of assembly. The timer unit then activates the switch mechanism after a predetermined period of time.

(Example) The configuration of an example of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a main body of the device, and terminal accommodating portions 2, 2, which are open on the top surface, are formed at both ends of the main body 1, sandwiching a timer unit accommodating portion 3 in the center. Terminals 5 and 6 each having a self-locking piece are stored and held in each of the terminal storage parts 2 and 2, respectively. Also,
A timer unit 7 is dropped into the timer unit accommodating part 3 between the terminal accommodating parts 2 and 2 in a horizontal plane and is housed in a stationary manner.

Further, the reversing mechanism includes a support frame 8 extending from the terminal 5, a mover 12, and a spring 18. The support frame 8 is integrally bent from the upper edge of one of the terminals 5, extends above the timer unit 7 which is dropped into the timer unit storage section 3, and comes into contact with the timer unit 7. It is starting to be installed. Further, in the support frame 8, a pivot portion 10 is formed approximately in the center of a base portion 9 formed in a substantially rectangular frame shape, and is bent downward into a substantially V-shaped concave shape. Furthermore, this support frame 8
A protruding portion 11 is formed in the base portion 9 by being bent downward from the middle portion of the base portion 9 and having a distal end thereof brought into contact with the upper surface of the timer unit 7. The protruding portion 11 of the support frame 8 may be omitted as long as the distance between the base portion 9 and the top of the timer unit 7 is small and the base portion 9 comes into contact with the top of the timer unit 7. Further, the movable element 12 is formed into a substantially rectangular frame shape, and on both sides thereof, there are bent support pieces 13 whose lower edges are swingably engaged with the pivot parts 10 of the support frame 8. The child 12 is fitted inside the support frame 8, and the support piece 13 is supported by the pivot support 10. Further, the spring 16 is formed of a tension coil spring, and a locking portion 17 at one end is locked to the upper edge of the movable element 12, and the other end has a support that is the back side of the pivot portion 10 of the support frame 8. A support shaft 18 is locked below the frame 8.

Further, the switch mechanism has a movable contact piece 14 integrally formed at the lower end of the movable element 12, and this movable contact piece 14 is located above the timer unit housing 3 from the upper edge of the other terminal 6. It is adapted to be brought into contact with and separated from a fixed contact piece 15 that extends to. and,
This timer unit activates the switch mechanism after a predetermined period of time.

Next, reference numeral 19 denotes a handle body having an open bottom surface so that the movable element 12 can be placed inside.
The support shaft 1 is attached to the lower edge of both inner surfaces of the handle body 19.
A locking portion 20 that locks both ends of 8 is formed in the shape of a groove. Further, a pivot projection 21 is projected from the central portions of both sides of the handle body 19, and the upper surface of this projection 21 is formed in an arc shape.

Further, 22 is a lid body formed in a size that covers the upper opening of the instrument main body 1, and has a lower surface that fits into the opening of the instrument main body 1 and engages and holds the upper edges of the terminals 5 and 6. A protrusion 23 is formed. Further, a box-shaped part 24 into which the handle body 19 is fitted is formed in the center of the lid body 22, and the shaft support protrusions 21 on both sides of the handle body 19 are mounted on the inner surfaces of both sides of the box-shaped part 24. A pivot recess 25 is formed to be movably engaged.

Then, this handle body 19 is attached to the box-shaped part 2 of the lid body 22.
4 from below to fit the shaft support protrusion 21 into the shaft support recess 2.
5, the upper surface operation part 26 of the handle body 19
faces the top opening 27 of the box-shaped portion 24.
Next, this lid body 22 is fixed to the upper surface of the main body 1 with a mounting bracket 28. In this state, the movable element 12 is disposed within the handle body 19, and as the handle body 19 swings, the movable element 12 is reversed by the movement of the dead point of the spring 16.

Next, the operation of this embodiment will be explained.

The timer unit 7 is dropped into the timer unit accommodating portion 3 of the main body 1 through the upper surface opening 27, thereby being fixedly stored while being prevented from moving within a horizontal plane.
Further, the terminals 5 and 6 are stored in the terminal storage parts 2 and 2 on both sides of the timer unit storage part 3. In this state, the support frame 8 is disposed on the timer unit 7, and the protrusion 11 of the support frame 8 comes into contact with the timer unit 7 to hold the timer unit 7.

Also, when assembling the movable element 12, the movable element 12 is attached to the support frame 8.
and insert the support pieces 13 on both sides to the pivot support 1 of the support frame 8.
The other end of the spring 16, which has one end locked to the upper end of the mover 12, is locked to a support shaft 18 below the support frame 8, and both ends of the support shaft 18 are By engaging the locking portions 20 on both sides of the handle body 19 fitted to the movable member 12 and fitting the box-shaped portion 24 of the lid body 22 to the handle body 19, the handle body 19 is rotated so that the shaft support protrusion 21 is The handle body 1 is engaged with the support recess 25.
9 is swingably supported. Then, the lid body 22 is fixed to the main body 1 with a mounting bracket 28.

Next, to open and close the switch mechanism, when the left end of the handle body 19 is pressed downward from the state shown in FIGS.
The pivot 18 that is engaged with the engagement section 20 is moved to the right in FIG. 1, and the spring 16 is moved parallel to the mover 12. When the position of the dead point is exceeded, that is, at the final stage of the swinging of the handle body 19, the movable element 12 is reversed as the branch part 13 engages with the pivot part 10 by the spring 16, and the movable contact part 14 is separated from the fixed contact piece 15, and the switch is opened.
Further, the closing operation of the switch is similarly performed by inverting the movable element 12 by operating the handle body 19.

Even if the pressing force applied to the handle body 19 is applied to the support frame 8 by operating the handle body 19, the support frame 8 is pressed and deformed because the support frame 8 is in contact with the upper surface of the timer unit 7. Moreover, the timer unit 7 is held by the supporting frame 8 and movement toward the opening of the main body 1 is prevented.

In this way, the timer unit 7 is held by the support frame 8 of the reversing mechanism extending from the terminal 5 housed in the terminal storage part 2, and no special member is required using only the support frame 8 of the reversing mechanism. The support frame 8 of the reversing mechanism can be used as is without any special processing.

〔Effect of the invention〕

According to the present invention, there is provided a main body having an opening, a timer unit storage part and a terminal storage part communicating with the opening, and a timer unit stored in the timer unit storage part by being dropped into the timer unit storage part through the opening. and a reversing mechanism which includes a support frame extending from the terminal and is disposed so that the support frame contacts the top of the timer unit, so that the timer unit can be dropped from the opening of the main body into the timer unit housing. Further, the terminal is stored in the terminal storage part from the opening of the main body, and the support frame of the reversing mechanism extending from this terminal is dropped into contact with the stored timer unit, and the timer unit is moved by the reversing mechanism. At the same time, the reversing mechanism is held by the timer unit at the bottom, making it possible to easily arrange the functional parts as a switch.In particular, the space in the vertical direction of the main body can be reduced, making it possible to make it more compact. There is no need for parts or structures for individually holding the timer units, and the structure for holding the reversing mechanism and timer units together becomes simple, and ease of assembly is improved.

[Brief explanation of drawings]

Fig. 1 is a cutaway front view of the reversing mechanism of a switch showing an embodiment of the present invention, Fig. 2 is a cutaway front view of the shaft support of the above handle body, and Fig. 3 is a longitudinal cross-sectional side view of the above handle body. FIG. 4 is a perspective view of the reversing mechanism section same as above. DESCRIPTION OF SYMBOLS 1... Main body, 2... Terminal storage part, 3... Timer unit storage part, 5, 6... Terminal, 7... Timer unit, 8... Support frame of reversing mechanism, 12...
Mover of the reversing mechanism, 14... Movable contact piece of the switch mechanism, 15... Fixed contact piece of the switch mechanism, 16...
...Spring of the reversing mechanism.

Claims (1)

[Scope of Claims] 1. A main body having an opening, a timer unit storage section and a terminal storage section communicating with the opening, a terminal disposed in the terminal storage section, and a supporting frame extending from the terminal; a reversing mechanism disposed on the opening side of the main body and including a movable element connected to the support frame and a spring connected to the movable element; a switch mechanism driven by the operation of the reversing mechanism; and a timer unit that is fixedly stored by being dropped into the timer unit storage section and drives the switch mechanism after a predetermined period of time, and the timer unit is supported by the timer unit storage section with the support frame abutting the upper part. A switch characterized by: