JPH0365626B2 - - 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.

(Prior Art) In a conventional switch equipped with this type of timer, each part of the timer mechanism is mounted on a board that is housed and fixed in a switch case, as described in, for example, Japanese Utility Model Publication No. 47-39590. A structure was adopted in which the boards were installed one after another, and then the boards were housed in a case and fixed with screws.

In addition, as described in Japanese Utility Model Application Publication No. 56-25422, an opening/closing mechanism consisting of a terminal, a fixed contact piece, and a movable contact part is provided on the inner bottom side of the switch case, and a timer unit and a timer unit are provided on the front side. A structure in which an operating section is provided is known.

(Problems to be Solved by the Invention) In the structure described in the above-mentioned Japanese Utility Model Publication No. 47-39590, a board on which each part of a conventional timer mechanism is attached sequentially is housed in a case and fixed with screws. Therefore, there were problems in that it took time and effort to assemble the board, and that space was required for assembling the board.

In addition, even with the structure described in the above-mentioned Japanese Utility Model Publication No. 56-25422, the terminal and the opening/closing mechanism must be fixed to the inner bottom of the case, and the timer unit and operating section must be attached to the front side corresponding to this opening/closing mechanism. It is difficult to balance the arrangement, positioning is not easy, and a large space is required.
There are problems such as difficulty in making it compact.

The present invention has been made in view of the above problems, and allows a switch incorporating a timer to be arranged in a well-balanced manner, allowing easy positioning, easy assembly, and functional parts as a switch equipped with a timer unit. To provide a switch that can be easily arranged and made compact.

[Structure of the invention]

(Means for Solving the Problems) The switch of the present invention has a box-shaped main body having an elongated rectangular opening on one side and storage recesses formed in the center and both ends, and A timer unit is placed by being dropped into the recess, a pair of terminal units is placed by being placed into the accommodation recesses on both ends, a fixed contact piece, and a contact/disconnection between the fixed contact piece and the fixed contact piece. an opening/closing mechanism including a movable contact piece that is drivably connected to the timer unit, disposed on the opening side of the main body and connected to the terminal unit; and an operating section for operating the opening/closing mechanism. The device includes an elongated rectangular lid disposed over the opening of the main body.

(Function) In the switch of the present invention, the timer unit is disposed by dropping into the storage recess at the center from the opening of the device body, and the pair of terminal units are respectively dropped into the storage recesses at both ends. By arranging the opening/closing mechanism in the central part of the opening side of the instrument body, the opening/closing mechanism is drivably connected to the timer unit, and a lid body having an operating part for operating this opening/closing mechanism is provided. By placing the timer unit in the center and the terminal units on both ends, a balanced arrangement is possible, making it easy to downsize, and the timer unit can be assembled independently. , it is possible to improve the assembly accuracy and also facilitate the connection work of the terminal unit.

(Embodiment) Next, the configuration of an embodiment of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a box-shaped device main body, which has an elongated rectangular opening on one side, and terminal storage recesses 2, 2 are formed at both left and right ends with openings on the upper surface.
Protrusions 3, 3 are formed in the center of the inner wall surface on the outer end side, respectively, in the direction toward the opening, and these protrusions 3,
Groove-shaped hook portions 4, 4 are formed on both sides of the terminal 3, located on the same plane as the inner wall surface, and extending in the direction toward the opening, which is the direction in which the terminal board is inserted. Also, this main body 1
The terminal storage recesses 2, 2 have the protrusions 3, 3 on the bottom surface thereof.
Wire insertion holes 5, 5 are opened on both sides of the wire.

Furthermore, wire release holes 7 are opened at the bottoms of the storage recesses 2, 2 of the main body 1, respectively, and are located inside the wire insertion holes 5, 5, and in which release elements (not shown) are disposed.

Further, a timer storage recess 8 is formed in the center of the main body 1, and is located between both terminal storage recesses 2, 2, into which a timer unit is inserted.

Next, reference numeral 9 denotes a first frame-shaped terminal unit, which includes side plate portions 11, 11 bent from both sides of the substrate portion 10 at approximately right angles, and the both side plate portions 11,
The wire connecting piece parts 12, 12 are bent at a substantially right angle from the leading edge of the wire connecting piece 11 in directions facing each other. The tip edges of the wire connecting pieces 12, 12 of the first terminal unit 9 are respectively engaged with the hooks 4, 4 of the terminal storage recess 2 of the main body 1, and the terminal unit 9 is dropped into the terminal storage recess 2. It is formed on the latched portion 12a which is positioned and held by the latching member 12a.

Reference numerals 13 and 14 indicate second and third frame-shaped terminal units, and both terminal units 13 and 14 have a narrow substrate portion 15 narrower in width than the substrate portion 10 of the first terminal unit 9; side plate portions 16 each bent at a substantially right angle from one side of the base plate portion 15;
The terminal unit 13, 14 has a wire connecting piece 17 bent at a substantially right angle from the tip edge of the side plate 16. It is formed in a latched portion 17a that is engaged with the latching portions 4, 4 of the storage recess 2, respectively, and positioned and held by falling into the terminal accommodating portion 2.

Also, both side plate portions 1 of the first terminal unit 9
1, 11 and second and third terminal units 13,
A self-locking piece 18 is fitted and housed along the inner surface of each side plate part 16 of 14, and each locking piece 18, locking piece part 19, and restraining piece part 20 are connected to the wire connecting piece parts 12, 17, and 14, respectively. 17, the wire inserted through the wire insertion hole 5 of the main body 1 is slid along the inner surface of the wire connection piece portions 12, 17 of each terminal unit 9, 13, 14, and the lock piece 18 is locked. It is locked and connected by the piece part 19 and restrained by the restraining piece part 20.

Further, the substrate portion 10 of the first terminal unit 9
A supporting frame portion 21 is bent horizontally at the upper end of the frame.
A pivot portion 23 bent downward into a substantially V-shape is formed approximately at the center of both side portions 22 of the support frame portion 21 .

Further, reference numeral 24 denotes a movable element, which is molded from a conductive material, and supports 25 protruding from both sides of the movable element 24.
is swingably supported by the pivot portion 23 of the support frame portion 21, and the second and third
A movable contact piece 27 that is moved toward and away from a fixed contact piece 26 formed on the terminal units 13 and 14 is formed. Furthermore, the upper end of a coil spring 28 is locked to the upper end of the movable element 24, and the lower end of this spring 28 is locked to a support shaft 29 below the support frame 21.

In this way, the second and third terminal units 1
3 and 14 fixed contact piece parts 26 and this fixed contact piece part 2
An opening/closing mechanism is constituted by the movable member 24 having a movable contact piece 27 formed thereon which can be moved toward and away from the movable member 6 .

Further, reference numeral 30 denotes a handle body serving as an operating section operated on the outer surface of the opening/closing mechanism, and engagement grooves 31 for engaging the support shaft 29 are formed on both sides.

Next, reference numeral 32 denotes a lid body of the instrument main body 1, which is formed into an elongated rectangular shape, and the lower surface of both ends of this lid body 32 is fitted and locked into the upper surface opening of the main body 1, and has the first terminal. Projections 33 are provided to press down the upper edges of the unit 9, second and third terminal units 13 and 14. The handle body 30, which is fitted into the lid body 32 from the opening on the lower surface, has engagement protrusions on both sides located above the engagement groove 31.
It is engaged in engagement recesses formed on both inner surfaces of and is supported in a swinging manner.

Next, the operation of this embodiment will be explained.

The timer unit is stored in the timer storage recess 8 formed in the center of the device body 1 by falling through the opening, and the first, second and When the third terminal unit 9, 13, 14 is dropped, the latched portions 12a of the end edges of the wire connecting pieces 12, 12 engage with the latching portions 4, 4, and the second and third terminal units 9, 13, 14 are inserted. When the terminal units 13 and 14 are dropped in the same way, the latched portions 17a at the edges of the wire connection pieces 17 and 17 are engaged with the latching portions 4 and inserted, and each terminal 9, 13, 1 is inserted.
4 is held in place, and each wire connecting piece 12,
The lower ends of the wires 17 and 17 are located at the edge of each wire insertion hole 5, and the wires inserted through the wire insertion hole 5 are connected to the wire connection piece portion 1 of each terminal unit 9, 13, and 14.
2, 17 and the lock piece 18 to be connected.

The movable contact piece 27 of the mover 24 whose support piece 25 is supported by the support frame 21 of the first terminal unit 9 is connected to the fixed contact piece formed on the second and third terminal units 13 and 14. An opening/closing mechanism that is brought into contact with and separated from 26 is formed.

Next, when the lid body 32 that swingably holds the handle body 30 is attached to the top surface of the main body 1, the projections 33 hold the edges of the terminal units 9, 13, 14, and the terminal units 9, 13, 14 are held. be done.

In the device assembled in this way, each terminal unit 9, 13, 14 has a wire connecting piece 1
Latched parts 12a, 17a on the edges of 2, 17, 17
are engaged with each other, the locking piece 18 and the wire connecting piece parts 12, 17 are held in a predetermined position without being displaced by the pressing force of the electric wire inserted between the wire connecting piece parts 12, 17. 17, 17 and the wire insertion hole 5 will not be misaligned.

In this switch, the position of the support shaft 29 at the lower end of the swing operation spring 28 of the handle body 30 moves, the spring 28 rotates, and the spring 28
exceeds the dead center position of the mover 24, the mover 24
rotates around the pivot 23 of the support frame 21 as a fulcrum,
The movable contact piece 27 contacts the fixed contact piece 26.

In the above-mentioned embodiment, the first terminal 9 unit forms opposed wire connecting pieces 12, 12, and engages the two wire connecting pieces 12, 12 with the hooking parts 4, 4. 2. Third terminal unit 13, 14
Although the structure in which the edge of one wire connection piece 17 is engaged with the hook 4 has been described, either structure can be applied as appropriate depending on the purpose of the switch.

〔Effect of the invention〕

According to the present invention, the timer unit is disposed by being dropped into the storage recess formed in the center of the box-like main body having an elongated rectangular opening on one side, and the terminal units are respectively installed in the storage recesses on both ends. The timer unit and terminal unit can be stored in the main body by dropping it in, and an opening/closing mechanism is provided on the opening side of the main body, and an elongated rectangular lid body with an operating part for operating this opening/closing mechanism is installed, so that the timer unit and terminal unit can be easily balanced. It allows for a neat arrangement, and also facilitates positioning and assembly. In addition, the opening/closing mechanism can be placed on the opening side of the main body, making it possible to arrange the functional parts as a switch equipped with a timer unit without difficulty, allowing a balanced arrangement, making it easy to downsize, and incorporating it as a timer unit. Assembling accuracy can be improved and terminal connection work can also be facilitated.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a switch showing an embodiment of the present invention, and FIG. 2 is a plan view of the same switch. DESCRIPTION OF SYMBOLS 1... Main body, 2... Terminal storage recess, 8... Timer unit storage recess, 9, 13, 14... Terminal unit, 24... Mover forming an opening/closing mechanism, 2
6...Terminal unit 13, 1 forming the opening/closing mechanism
4 fixed contact piece part, 27...movable contact part, 30...
A handle body serving as an operating section, 32...lid body.

Claims (1)

[Scope of Claims] 1. A box-shaped main body having an elongated rectangular opening on one side and partitioned storage recesses in the center and both ends, and a box-shaped main body that is disposed by falling into the storage recess in the center. the above-mentioned timer unit, a pair of terminal units disposed by falling into the storage recesses on both ends, a fixed contact piece and a movable contact piece that approaches and separates from the fixed contact piece. an opening/closing mechanism that is drivably connected to the timer unit, disposed on the opening side of the main body, and connected to the terminal unit; and an operating section for operating the opening/closing mechanism, and disposed in the opening of the main body. A switch characterized by comprising a cover body having an elongated rectangular shape.