JP2540786B2 - Slow switch - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a delay switch in which a timer opening / closing contact mechanism is activated when a predetermined time has elapsed after operating an operating body.

[0002]

2. Description of the Related Art A conventional slow-moving switch is Jikho Sho 47-39590.
As described in Japanese Patent Application Laid-Open Publication No. H10-115, a structure is adopted in which a timer mechanism is mounted on a board that is housed and fixed in a switch case, and this board is housed in the case and fixed with screws.

Further, Japanese Patent Publication No. 53-31268 discloses that a timepiece device including an inner and outer machine frame, a spindle and the like is sequentially assembled in a housing 1.

[0004]

The structure disclosed in Japanese Utility Model Publication No. 47-39590 has a large assembling space, and
There has been a problem that the entire switch becomes large, and that it takes time to assemble and it is difficult to assemble with high accuracy.

[0005] The switch disclosed in Japanese Patent Publication No. 53-31268 is not a unit that is previously unitized and configured as a timer unit. Therefore, this also requires an assembling space, and the entire switch becomes large. Also, the assembly of the timer part, the timer opening and closing contact mechanism,
The assembly of the reversing mechanism is extremely complicated, which requires a lot of work, requires skill, or is difficult to assemble with high precision, so that a desired operation as a slow switch cannot be obtained.

SUMMARY OF THE INVENTION The present invention solves the problems of the conventional device described above, and an object of the present invention is to provide a slow switch which has a simple structure and can be easily assembled and whose operation is reliable. .

[0007]

According to the present invention, there is provided a box-shaped main body having an elongated quadrangular opening on one surface and compartments formed at the central portion and at both end sides thereof; And a pair of terminal units arranged in the housing recesses on both ends; a supporting frame extending from the terminal unit, a mover supported by the supporting frame, and a spring for reversing the mover; A reversing mechanism that is disposed above the timer unit and partially presses the timer unit to prevent the timer unit from moving toward the opening side; and a main body that has an operating portion that operates the reversing mechanism and a protrusion that faces the terminal unit. An elongated quadrangular lid which is arranged in the opening of the main body and presses the terminal unit by the projection; is arranged close to the timer unit on the bottom side of the central storage recess of the main body, and closes in response to the operation of the operation unit. Is done And it is characterized in that it comprises a timer switching contact mechanism actuated by Ma unit.

[0008]

According to the present invention, the timer unit is housed in the housing recess at the center of the main body, and the terminal units are housed in the housing recesses at both ends. Further, a timer opening / closing contact mechanism is arranged on the bottom side of the central storage recess, and a reversing mechanism composed of a support frame extending from the terminal unit, a mover, a spring, etc. is arranged above the timer unit. Then, an elongated quadrangular lid having an operating portion for operating the reversing mechanism is disposed in the opening of the main body. Therefore, a space for assembling the timer unit is unnecessary, and the timer opening / closing contact mechanism, the timer unit, the reversing mechanism, and the operating portion can be arranged in the vertical direction without difficulty, and the overall size is reduced. Further, the projection of the lid body presses the terminal unit to surely regulate the position of the terminal unit, and since the supporting frame of the reversing mechanism extends from the terminal unit, the supporting frame can be positioned reliably. Further, since a part of the reversing mechanism presses the timer unit, the position of the timer unit is also surely regulated. Further, since the projection of the lid acts as a guide and a position regulating member when the lid is attached to the main body, the lid can be easily assembled.

As for the operation, the reversing mechanism is reversed in response to the operation of the operating portion to ensure the swinging of the operating portion. Further, the timer opening / closing contact mechanism is closed according to the swing of the operating portion, and the timer opening / closing contact mechanism is operated by the timer unit after a predetermined time from the subsequent operation.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a case, which is configured by connecting a box-shaped main body 2 and a lid body 3. The one main body 2 is formed with storage recesses 4, 5, and 6 communicating with the opening at the center and both ends thereof. A timer unit 7 is housed in the housing recess 4, and terminal units 8 and 9 are housed in the housing recesses 5 and 6, for example, by dropping. The storage recess 4 at the center is formed deeper than the storage recesses 5 and 6 at both ends, and has a clearance enough to allow the timer unit 7 to be dropped and stored. The timer unit 7 accommodated in the accommodating recess 4 is allowed to be slightly moved, such as a clearance, and its movement in a direction along an opening intersecting the dropping direction is restricted so that the timer unit 7 is positioned and held. That is,
As shown in FIG. 3, on both side walls of the main body 2, the boundary between the central storage recess 4 and the both end storage recesses 5 and 6 is formed by step portions 10 and 10.
The groove portions 11, 11 are formed between the pair of step portions 10, 10. Thus, the storage recess 4 at the center is formed wider than the storage recesses 5 and 6 at both ends.

Next, as shown in FIG. 1 and FIG.
Is connected to the upper surface of the main body 2 by a mounting bracket 12. An operation portion fitting portion 13 having an opening on the upper surface is formed in the central portion of the lid body 3, and projections 14 which are fitted from the opening on the upper surface of the main body 2 and press the terminals 8 and 9 are formed on the lower surfaces of both end portions. Has been formed. Further, as shown in FIG. 4, shaft support concave grooves 15 are formed on both sides of the fitting portion 13 of the lid body 3 and open to the lower edge.

Next, as shown in FIG. 3, the one terminal 8 is fitted along a terminal plate 16 formed in a substantially rectangular shape on a plane and along both sides 17 and 17 of the terminal plate 16. It is composed of a pair of combined lock pieces 18. The locking portion 19 of the locking piece 18 faces the electric wire connection portions 20 of the terminal plate 16, respectively.

Further, as shown in FIG. 3, the terminal 9 has a pair of terminal plates 21 and 22 formed in a substantially U-shape in plan view and side plates 23 of the terminal plates 21 and 22, respectively. It is composed of a chain piece 24 that is fitted. Locking part of each locking piece 24
25 are opposed to the electric wire connecting portions 26 of the terminal plates 21 and 22, respectively.

As shown in FIG. 3, the terminal plates 16, 21, and 22 are respectively accommodated in the accommodating recesses 5 and 6 at both ends of the main body 2 by, for example, dropping. The terminal plates 21 and 22 are fitted and housed so as to face each other. Then, the upper edges of the terminal plates 16, 21, 22 are the protrusions 14 of the lid pair portion 3.
Pressed by.

Further, as shown in FIGS. 3 and 4, one terminal plate 16 is provided with a reversing mechanism support frame 27 that extends horizontally from the upper edge of the terminal plate 16 above the central storage recess 4. It is formed integrally. On both sides of the support frame 27, a concave pivotal support portion 28 bent in a substantially V shape is formed. Is swingably supported. At the lower end of the mover 29, a movable contact piece portion 32 is formed at the upper edge of the other first terminal plate 21 so as to be brought into contact with and separated from a fixed contact piece 31 extending above the central storage recess 4. Has been done. The fixed contact piece 31 and the movable contact piece 32 make the first
The open / close contact mechanism is configured. The support frame is attached to the other end of the coil spring 33 fixed to the upper part of the mover 29.
A support shaft 34 is locked below the pivot 28 of 27.

Further, both ends of the support shaft 34 are, as shown in FIGS. 1, 2 and 3, supporting recesses formed on both sides of the operating portion 35.
A shaft portion 37, which is locked by 36 and protrudes on both sides of the operation portion 35, is swingably supported by a shaft support groove 15 formed on both sides of the fitting portion 13 of the lid 3.

Further, as shown in FIG. 1, a fixed contact piece 38 disposed on one side bottom portion of the central storage recess 4 is extended to the lower portion of the other second terminal plate 22. . And
A movable contact piece 39 formed by an elastic piece that is brought into contact with and separated from the fixed contact piece 38 is welded to one side of the one terminal plate 16. The fixed contact piece 38 and the movable contact piece 39 constitute a timer opening / closing contact mechanism 40.

Next, as shown in FIG. 5, the timer unit 7 is constructed by incorporating a timer section (speed control section) in a timer case 41. The timer case 41 is formed in a box shape with both sides opened, and a support plate portion 42 for partitioning left and right is integrally formed at the center of the timer case 41, and both sides are formed by lid plates 43 and 44. It is designed to be sealed. In addition, a concave step portion 45 for arranging the timer opening / closing contact mechanism 40 is formed on the lower part of one side of the timer case 41. The timer case 41 is dropped into the timer unit housing recess 4 in the center of the main body 2 from the opening edge on the upper surface with the grooves 11, 11 formed by the pair of steps 10, 10 serving as a guide.

The supporting frame is provided on the upper surface of the timer case 41.
The protruding piece 46 cut and raised from 27 presses against and contacts the timer
The movement of the screw 41 in the dropping direction is prevented.

Next, the timer section of the timer unit 7 is set to 1
A ratchet ratchet wheel 49 rotatably provided on a pinion 48 and a first gear 50 which is rotated by being coupled only in one direction of the ratchet ratchet wheel 49, and the main shaft 51 of the ratchet ratchet wheel 49 has one end. Of the cover plate 43 protrudes outward. The first gear
50 is urged by a leaf spring 52 in the direction of engagement with the ratchet ratchet 49.

Next, the second gear, the second gear 54, the third gear 55, the third gear 56, the fourth gear
The pinion 57, the fourth gear 58, the fifth pinion 59 and the escape wheel 60 are alternately rotatably mounted on two parallel shafts, and a ceiling 62 is mounted on an ankle shaft 61 which engages the escape wheel 60. ing.

As shown in FIG. 1, the timer unit 7 has a set / reset mechanism 63 and a timer case 41.
Set-reset mechanism located on the outer surface side of one of the lid plates 43
A first cam 64 of 63 is mounted on the main shaft 51. The first cam 64 has an operating part protruding to one side of the operating part 35.
An engagement edge 66 and a cam edge 67 and a second cam 68 engaged with the
Engaging engaging edge 69 for engaging with the spring engaging projection 70.
Is protruding. The second cam 68 has an operating cam edge.
A base end of an opening / closing lever 74 engaged with the operating cam edge 71 is pivotally attached to a shaft portion 75 protruding from an outer surface of one of the cover plates 43 of the timer case 41. An engagement portion 76 is formed on the 74 to push the movable contact piece 39 of the timer switch mechanism 40 away from the fixed contact piece 38.

The timer unit 7 has a coiled timer spring 77. Both ends of the spring 77 are locked by the opening / closing lever 74 and the spring locking projection 70 of the first cam 64. I have.

As described above, the timer unit 7 is provided with the timer section (speed adjusting section), the set / reset mechanism 63, the opening / closing lever 74 for activating the timer opening / closing contact mechanism 40, and the spring 77, and is operated by the operating section 65. Timer open / close contact mechanism 40
It has a function to control the opening and closing of.

Next, the operation of this embodiment will be described. At the time of assembly, the timer case 41 of the timer unit 7 is dropped and stored by using the stepped portions 10, 10 forming the concave groove portions 11, 11 as guides in the storage concave portion 4 in the center of the main body 2 of the case 1. The timer case 41 is positioned and held with its movement in a direction along an opening surface intersecting with the direction of dropping into the storage recess 4 being restricted within a clearance range capable of being dropped into the storage recess 4. A set / reset mechanism 63 is provided between the one side cover plate 43 of the timer case 41 and the inner surface of the side wall of the central storage recess 4.
To arrange.

On the other hand, the terminals 8 and 9 are housed in the housing recesses 5 and 6 on both ends of the main body 2. As a result, the timer opening / closing contact mechanism 40 is arranged on the bottom side of the central storage recess 4. Further, the protruding piece 46 cut and raised from the support frame 27 extending from the terminal plate 16 of the one terminal 8 presses the timer unit 7. Then, since the projection 14 of the lid 3 coupled to the upper surface of the main body 2 presses the upper edges of the terminal plates 16, 21, 22 of both terminals 8 and 9, the timer unit 7 eventually fixes the terminal plate 16 It is held by the pressing force of the lid body 3 via it, and the movement in the dropping direction is restricted. Further, when the lid 3 is attached to the main body 2, the protrusion 14 serves as a guide to prevent the lid 3 from being displaced with respect to the main body 2.

Next, when the operating portion 35 is swung clockwise from the state shown by the solid line in FIG. 1 as shown by the chain line, the operating portion 35 is moved.
The shaft 34 engaged with the shaft moves. Therefore, the spring
33 exceeds the dead center position, the mover 29 is inverted and held around the support piece 30, and the movable contact piece 32 is brought into contact with the fixed contact piece 31 to close the open / close contact mechanism.

Further, the operation portion 65 swings the operating portion 35 to push the engaging edge 66 of the first cam 64 of the set / reset mechanism 63, and the first cam 64 is rotated against the spring 77. It moves (counterclockwise in FIG. 1) to store the spring 77. Also, the first
The cam edge 67 of the cam 64 pushes the opening / closing lever 74, and the movable contact piece 39 of the timer opening / closing contact mechanism 40 is pushed against its elastic force to come into contact with the fixed contact piece 38 to be closed. . Further, in this state, the second cam 68 also engages with the first cam 64, and this cam edge 71
Is also held in a state where the opening / closing lever 74 is pushed. Further, when the first cam 64 rotates, the ratchet ratchet wheel 49 also rotates, but the first gear 50 does not rotate.

When the operation portion 35 is pushed in this state, the operation portion 35 is changed from the chain line state in FIG. 1 to the solid line state, the movable element 29 is rotated by reversing the spring 33, and the movable contact piece portion 32 is fixedly connected. It is separated from the piece 31 and released.

When the operating portion 35 is rotated, the operating portion 65 is separated from the engaging edge 66 of the first cam 64, and the first cam 64 is rotated by the spring 77 in the clockwise direction in FIG. This first cam
A ratchet ratchet 49 coupled to the gear 64 via the main shaft 51 rotates the first gear 50. As a result, the second gear 53, the second gear 54, the third gear 55, the third gear 56, the fourth gear 57, the fourth gear
58, fifth pinion 59 is replaced with escape wheel 60, ankle shaft 61, and ceiling 62
To make the meshing rotation. When the first cam 64 rotates for a predetermined time, the second cam 68 engaged with the first cam 64 is rotated, and the cam edge 71 of the second cam 68 opens and closes.
The opening / closing lever 74 is rotated by the spring 77 (clockwise in FIG. 1). By the rotation of the opening / closing lever 74, a separating force for moving the movable contact piece 39 away from the fixed contact piece 38 is applied, and the timer opening / closing contact mechanism 40 is opened when a predetermined time has elapsed after the operation of the operation portion 35.

[0031]

As described in detail above, according to the present invention, the timer unit is housed in the central storage recess of the main body, and the terminal units are arranged in the storage recesses at both ends of the main body. Therefore, the timer unit is assembled. It is possible to achieve miniaturization without the need for space. In addition, the timer opening / closing contact mechanism is arranged on the bottom side of the central storage recess, and the reversing mechanism having the support frame extending from the terminal unit is arranged on the upper part of the timer unit. It can be placed in any direction without difficulty, and this also helps to reduce the size. further,
The position of the terminal unit can be regulated by the protrusion,
The timer opening / closing contact mechanism, the timer unit and the reversing mechanism can also be positioned, so that they can operate reliably.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway front view showing a pivot portion of the operation body.

FIG. 3 is a plan view of the main body.

FIG. 4 is a longitudinal sectional side view showing a pivot portion of the operation body.

FIG. 5 is a vertical side view of the same timer unit.

[Explanation of symbols]

2 ... Main body, 3 ... Lid, 4, 5, 6 ... Storage recess, 7
... Timer unit, 8, 9 ... Terminal unit, 31 ... First
Fixed contact piece of the open / close contact mechanism, 35 ... Operating part, 40 ... Timer open / close contact mechanism.

Continuation of the front page (56) Reference JP 59-226434 (JP, A) JP 59-226436 (JP, A) JP 55-46473 (JP, A) JP 56-82519 (JP , A) JP 59-226433 (JP, A) JP 59-226435 (JP, A) JP 59-226437 (JP, A) JP 59-226432 (JP, A) JP 6-251655 (JP, A) JP 7-50115 (JP, A) Actual development Sho 55-11066 (JP, U) Japanese Patent Sho 53-31268 (JP, B1) Actual Sho 41-5455 (JP, Y1) Actual public 47-39590 (JP, Y1) Actual public 51-36223 (JP, Y1) Actual public 55-13866 (JP, Y1) Actual public 57-14337 (JP, Y1)

Claims (1)

(57) [Claims] 1. A box-shaped main body having an elongated quadrangular opening on one surface and compartmentalized storage recesses in the central portion and both ends thereof; a timer unit disposed in the central storage recessed portion; And a pair of terminal units arranged in the storage recess of the terminal unit; a supporting frame extending from the terminal unit, a mover supported by the supporting frame, and a spring for reversing the mover, and arranged above the timer unit. And a reversing mechanism that partially presses the timer unit to prevent the reversing mechanism from moving toward the opening side; and an operating section that operates the reversing mechanism and a protrusion that faces the terminal unit. And a slender quadrangular lid that presses the terminal unit by means of a section: It is placed near the timer unit on the bottom side of the central storage recess of the main body and is closed in response to the operation of the operating body and is made by the timer unit. Lagged switch, characterized in that it comprises a; timer switching contact mechanism and is.