JPH0782777B2 - 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 that can be controlled, for example, so that a fan stops driving after a delay of the operation of an operating body.

[0002]

2. Description of the Related Art A conventional slow switch of this type has a timer mechanism on a substrate housed and fixed in a switch case, as described in, for example, Japanese Utility Model Publication No. 47-39590 (Prior Art 1). The structure is such that the substrate is mounted, the substrate is housed in the case and fixed. In the prior art 1, the timer opening / closing contact mechanism is arranged on the relatively bottom side of the switch case. However, the related art 1 does not disclose anything about a terminal connected to an external electric wire and a specific structure for housing this terminal.

Further, Japanese Utility Model Publication No. 51-36223 (Prior Art 2) discloses a switching contact mechanism which is opened and closed by operating an operating body, a cam lever which is driven by operating the operating body, and this cam lever. There is shown a structure including a micro switch which is opened and closed by an electric motor which rotates a cam plate which operates the cam lever. The timer open / close contact mechanism
It is arranged on the upper side of the electric motor. However, this prior art 2 does not disclose anything about a terminal connected to an external electric wire and a specific structure for housing this terminal.

Further, in Japanese Patent Laid-Open No. 56-82519 (Prior Art 3), a body for two basic module sizes is divided into two parts, left and right, and a timer mechanism is provided on one side and the body on the other side. The arrangement of terminals is shown.

Furthermore, Japanese Examined Patent Publication No. 53-31268 (Prior Art 4) discloses that a timepiece device (timer mechanism) is sequentially incorporated in a main body. In Prior Art 4, the timer opening / closing contact mechanism is arranged above the timer mechanism. The terminals are planted on both ends of the bottom of the main body.

Further, Japanese Utility Model Publication No. 57-14337 (Prior Art 5) discloses that a terminal storage recess having a relatively shallow depth is provided at both ends of the main body, and a current transformer transformer having a relatively deep depth is stored in the central portion. A three-way switch with a recess is shown. The opening / closing contact mechanism of the prior art 5 is arranged on the upper side of the current transformer.

[0007]

In the prior art 1, since the substrate is fixed in the switch case, a work space for it is required, which causes a problem that the switch case, that is, the entire device becomes large. . Further, the fixing work is troublesome and requires skill. Further, the prior art 1 does not show a terminal connected to an external electric wire and a housing structure thereof. However, depending on how the terminal is housed, the delay switch as a whole may become large or the assembly may become extremely troublesome. That is, it is necessary to dispose a sufficient insulation distance between the terminal and the opening / closing contact mechanism operated by the timer mechanism. For example, if the insulation distance is secured on the same plane, the entire switch becomes large. It is clear. Similarly, work is troublesome in a structure in which terminals are implanted in a switch case, for example, and the entire switch becomes large in terms of working space.

Prior art 2 also does not show the terminal and its housing structure, and the relationship between the terminal and the timer opening / closing contact mechanism is unclear. Therefore, depending on the terminal housing structure, there is the same problem as in prior art 1. Is to be easily understood.

Further, the prior art 3 uses a body for two basic module sizes, and is not designed to be downsized in the first place. In other words, in the related art 3, the terminal, the timer mechanism, and the timer opening / closing contact mechanism can be housed and arranged by enlarging the entire device.

Further, in the prior art 4, since the terminals and the timer opening / closing contact mechanism are arranged on substantially the same plane, in order to secure a sufficient insulation distance between them, the main body is made flat by that much. Need to be big. In addition, since the terminals are implanted in the main body, a work space is required, which also causes a problem in that the entire apparatus becomes large. Further, since the timer mechanism is sequentially incorporated, a work space for this is also required, and from this point as well, the size is increased and the work is troublesome. Therefore, it has the same problem as the prior art 1.

Furthermore, the prior art 5 is a three-way switch, which is completely different from the slow switch. Even if it is a person skilled in the art, it is not easily conceivable to combine the prior art 5 with the slow switch. Even if the technique of the conventional technique 5 is applied to the slow switch, the terminal and the timer opening / closing contact mechanism are located on substantially the same plane. In this case, in the conventional technique, the size of the basic module is, for example, two as in the case of the conventional technique 3.

The present invention has been made in order to solve the above-mentioned problems of the prior art, and stores a timer opening / closing contact mechanism, which is actuated by the operation of the timer mechanism, the terminal and the operating body, in the switch body. An object of the present invention is to provide a slow switch that can be easily and without requiring special skill, and that can be downsized as a whole while maintaining a sufficient insulation distance between a terminal and a timer opening / closing contact mechanism. To do.

[0013]

SUMMARY OF THE INVENTION A slow switch according to the present invention comprises an opening, a storage recess communicating with the opening and having a relatively deep depth in a central portion, and a storage recess having a relatively deep depth in the central portion. A box-shaped switch body having a storage recess that is shallower than the storage recess of the main body; a timer mechanism that is arranged by being dropped into the central storage recess of the main body; A terminal to be disposed; an operating body provided on the opening side of the main body; a timer opening / closing contact disposed on the bottom side of the central accommodating recess of the main body in proximity to the timer mechanism and operated by the timer mechanism And a mechanism;

[0014]

In the delay switch of the present invention, the timer mechanism can be operated by operating the operating body, and the timer opening / closing contact mechanism can be operated slowly by operating the operating body. Further, the timer mechanism, the terminals, and the timer opening / closing contact mechanism can be dropped and accommodated. Moreover, since the timer opening / closing contact mechanism is arranged on the bottom side of the central accommodating recess for accommodating the timer mechanism of the main body, the arrangement can be made reasonably and the distance between the terminal and the vertical direction can be increased to increase the insulation distance. The size can be reduced, and since the timer opening / closing contact mechanism is disposed by utilizing the bottom of the main body, the structure is simple without requiring special means such as positioning.

[0015]

An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a switch main body, which is formed in a box shape having an open top surface. The main body 1 has a central storage recess 3 communicating with the opening on the top surface and terminals on both ends. Storage recesses 2 and 2 are formed. One of the terminal storage recesses 2 is provided with one terminal plate 4, and the other terminal storage recess 2 is provided with a pair of left and right terminal plates 5 and 6 dropped from the openings. The terminal pieces 4, 5, and 6 are fitted with locking pieces 7, respectively. Each of the storage recesses 2, 2 and 3 has a relatively deep depth in the storage recess 3 at the center thereof, and the storage recesses 2 and 2 at both ends thereof.
Is formed to be shallower than the storage recess 3 in the center.

Next, 17 is a timer opening / closing contact mechanism, which has a movable contact plate 18 having elasticity connected to the one terminal plate 4 by welding or the like and a fixed one connected to the other one side terminal plate 5. The fixed contact piece 19 is arranged on the bottom of one side of the accommodating portion 3 of the main body 1, and the movable contact piece plate 18 is arranged above the fixed contact piece 19. It is set up.

Reference numeral 20 denotes a timer mechanism, which is stored in the central storage recess 3 of the main body 1 by being dropped from the top opening. As shown in FIG. 4, the timer mechanism 20 has a timer case 21, and a timer section (speed control section) is incorporated in the timer case 21. A concave step portion 22 for arranging the fixed contact piece 19 and the movable contact piece plate 18 is formed at a lower part of one side of the timer case 21, and the timer opening / closing contact mechanism 17 is provided in the central storage recess 3 of the switch body 1. It is arranged near the timer mechanism 20 on the bottom side.

The timer case of the timer mechanism 20 is
A main shaft 25, to which a ratchet wheel 24 rotatably provided on the first eye 23 of the timer portion is fixed, projects from the case 21, and the main shaft 25 is set to face the outer surface of the case 21 on one side.
A reset mechanism, such as a cam 26, is attached.

One end of a coil spring 27 is locked to the protrusion 26a of the cam 26, and the other end of the spring 27 is locked to the lower part of one side of the case 21. Further, a cam edge 28 for pressing the movable contact plate 18 against the fixed contact piece 19 is formed on the cam 26.

The timer case 21 is formed such that the dimension between the end of the main shaft 25 of the ratchet ratchet wheel 24 protruding on one side and the other side is substantially the same as the width of the central storage recess 3 of the main body 1. The cam 26 and the spring 27 are arranged in a space formed between one side surface of the timer case 21 housed in the central housing recess 3 and the inner side surface of the central housing recess 3.

Further, in the timer case 21 of the timer mechanism 20, there is provided a first gear 23, a first gear 29 which is connected to the ratchet ratchet wheel 24 to rotate only in one direction, and is rotated. The gear 29 is urged by a spring 30 in a direction to engage with the ratchet ratchet wheel 24. Further, in the timer case 21, the first case 23 and the first case 2 are provided.
The second pinion 31 that meshes with the third pinion 3 is arranged in parallel.
The second gear 32 integrated with the pinion 31 meshes with the third pinion 33 coaxially with the pinion 23, the third gear 34, the fourth pinion 35,
A slow-moving gear group consisting of a fourth gear 36 and a fifth pinion 37 is arranged parallel to each other and sequentially meshes with the pallet shaft 39 which engages with the escape wheel 38 on the fifth pinion 37. The attachment 40 is attached.

As described above, the timer mechanism 20 is provided with the timer portion (speed adjusting portion), the cam 26 of the set and reset mechanism for contacting and separating the fixed contact piece 19 and the movable contact piece portion 18.

Next, 41 is an operating body. As shown in FIGS. 1 and 2, the support shafts 16 are fitted to the lower portions on both sides of the operating body 41, and the operating body 41 is supported by the support shaft. The shaft portions 42 located above 16 and protruding on both sides are rotatably engaged with the shaft stopper recesses 44 formed on both sides of the lid body 43.
The central storage recess 3 of the main body 1 is provided at the lower part of one side of the operating body 41.
The operated portion 4 formed on the cam 26 and disposed on one side of the
The actuating portion 46 engaging with 5 is projected. The operating surface of the operating portion 46 of the operating body 41 is located between the inner side surface of the central storage recess 3 of the main body 1 and the side surface portion of the timer case 21 of the timer mechanism 20 with respect to the cam 26 of the set / reset mechanism. They are arranged in a substantially orthogonal direction.

Further, the operation pair 41 is formed in a box shape having an open lower surface, and the upper part of the mover 10 is arranged inside thereof.

The lid 43 is attached to the upper surface of the main body 1 by a mounting member 47, and the terminal plates 4, 5 and 6 are held by the lid 43, and the upper surface opening portion of the lid 43 is held. The upper surface operation portion 48 of the operation body 41 is disposed in the.

Next, 8 is a quick-moving switch contact mechanism provided in this embodiment, which is a mover 10 having a movable contact piece 9.
The movable contact piece 9 and the fixed contact piece 11 are separated from each other. The mover 10 is supported by a support portion 12 extending horizontally from the upper edge of the one terminal plate 4 above the storage recess 3, that is, on the opening side of the main body 1. A concave pivot support portion 13 bent in a substantially V shape is formed on both side portions of the support portion 12, and the support portion 12 is attached to the pivot support portion 13.
The support pieces 14 provided on both sides of the mover 10 fitted to the above are swingably supported. The lower end portion of the mover 10 is brought into contact with and separated from a fixed contact piece 11 extending from the upper edge of the other terminal plate 6 on the other side above the storage recess 3 and below the support portion 12. The part 9 is formed. Further, a support shaft 16 is provided below the supporting portion 12 at the lower end of the coil coil spring 15 which is temporarily locked to the upper end of the mover 10.
Is locked.

Next, the operation of this embodiment will be described. At the time of assembly, the timer case 21 of the timer mechanism 20 is dropped into the central storage recess 3 of the switch body 1 and stored.
A cam 26 of a set / reset mechanism is arranged between one side surface of the timer case 21 and the inner side surface of the side wall of the central storage recess 3 of the main body 1.

Further, the terminal accommodating recesses 2 on both ends of the main body 1,
Terminals 4, 5 and 6 are dropped into 2 and stored. At that time, the timer opening / closing contact mechanism 1 connected to the terminals 4 and 5, respectively.
7. The quick opening / closing contact mechanism 8 is disposed close to the timer mechanism 20 on the opening side of the main body 1 located on the bottom side and the upper side of the central storage recess 3 of the body 1 of the timer mechanism 20, respectively. Since the timer opening / closing contact mechanism 17 is disposed in the relatively deep storage recess 3 in the center and the terminals 4, 5, 6 are disposed in the relatively shallow storage recesses 2, 2, they are vertically separated. , The insulation distance is large. And the operating body 41
When is attached to the main body 1, the operating surface of the operating portion 46 of the operating body 41 is set to the cam 26 of the set / reset mechanism with respect to the inner surface of the storage recess 3 of the main body 1 and the timer case 2 of the timer mechanism 20.
It is arranged in a direction substantially orthogonal to the side surface portion of No. 1.

Next, when the operating body 41 is swung clockwise from the state shown by the solid line in FIG. 1 as shown by the chain line, the operating body 41 is rotated by the engagement of the shaft portion 42 and the shaft support recess 44. Then, the support shaft 16 is moved to the left side in FIG. 1, the spring 15 moves beyond the dead center position, and the mover 10 is moved in the state in which the support piece portion 14 is pivotally supported by the pivot support portion 13 as shown in FIG. The movable contact piece portion 9 is rotated in the clockwise direction and is held in a state where the movable contact piece portion 9 is in contact with the fixed contact piece 11, and the fast-moving open / close contact mechanism 8 is opened in response to the operating body 41.

Further, when the operating body 41 is rotated, its operating portion 46 is moved.
Pushes the actuated portion 45 of the cam 26 of the set / reset mechanism to rotate the cam 26 counterclockwise in FIG. 1, and the cam edge 28 of the cam 26 causes the movable contact plate of the timer opening / closing contact mechanism 17 to move. When the movable contact piece plate 18 is pushed, the movable contact piece plate 18 is brought into contact with the fixed contact piece 19 to be closed.

The rotation of the cam 26 causes the spring 2 to move.
7 is extended and stored. At this time, since the operating surface of the operating portion 46 of the operating body 41 is substantially orthogonal to the operated portion 45 of the cam 26 of the set / reset mechanism, the operating portion 4
Good motion transmission from 6 to the cam 26 is achieved. When the cam 26 rotates, the ratchet ratchet wheel 24 is rotated counterclockwise in FIG. 1, but the first gear 29 is not rotated.

When the operating body 41 is pushed, the operating body 41 changes from the chain line state in FIG. 1 to the solid line state, the support shaft 16 moves to the left side in FIG.
Causes the movable element 10 to be reversed, and the movable contact piece portion 9 of the quick-action opening / closing contact mechanism 8 separates from the fixed contact piece 11 and is opened. Then, the mover 10 is reversed by the spring 15
The state shown in the figure is maintained.

In addition, the rotation of the operating body 41 causes the operating portion 46 of the cam 26 to release the pressing and holding of the operated portion 45 of the cam 26, and the cam 26 is urged by the spring 27 stored in FIG. , Rotated clockwise. This cam 26
Rotation of the ratchet ratchet wheel 24 causes the ratchet ratchet wheel 26 to rotate in the clockwise direction in FIG. 1 to rotate the first gear 29. 2nd gear 32, 3rd pinion 33, 3rd gear 34,
The fourth pinion 35, the fourth gear 36, and the fifth pinion 37 are sequentially meshed with each other, and the escape wheel gear 38 and the tenfu 40 are sequentially loosely meshed and rotated, and the rotation of the cam 26 is stopped by the release of the accumulated force of the spring 27. The movable contact piece plate 18 that was engaged with the cam edge 28 immediately before being released is disengaged, and the elastic contact force gives the movable contact piece plate 18 a separating force that separates it from the fixed contact piece 19. 17 is open. Therefore, the fast opening / closing contact mechanism 8 can be opened and closed by operating the operating body 41, the timer mechanism can be operated by operating the operating body, and the timer opening / closing contact mechanism 17 can be operated by being delayed by operating the operating body. .

Although the movement mechanism has been described as the timer mechanism in the above embodiment, the invention is not limited to this structure, and a timer mechanism such as an electric motor may be used.

[0035]

As described above in detail, according to the present invention, the timer mechanism and the terminals are stored by being dropped into the storage recesses having different depths at the center and both end sides of the box-shaped switch body, and by the timer mechanism. Since the operating timer opening / closing contact mechanism is arranged on the bottom side of the relatively deep storage recess in the central portion in close proximity to the timer mechanism, the storage arrangement can be easily made by dropping and the timer opening / closing contact mechanism The vertical insulation distance from the terminal can be increased.
Also, no special means is required for disposing the timer opening / closing contact mechanism. Therefore, it is easy to assemble, the structure can be simplified, and the size can be reduced, so that a one-module structure similar to a general wiring device can be realized.

[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 shaft support portion of the operating body.

FIG. 3 is a perspective view of an opening / closing contact mechanism section of the same.

[FIG. 4] Similarly, a vertical side view of the timer mechanism 1 ... Switch main body, 4, 5, 6 ... Terminals, 17 ... Timer opening / closing contact mechanism, 20 ... Timer mechanism, 41 ... Operating body.

Claims (1)

[Claims] 1. An opening, a storage recess communicating with the opening and having a relatively deep depth in the central portion, and a storage recess communicating with the opening and having a shallower depth than the storage recess in the central portion on both ends. A box-shaped switch body having; a timer mechanism arranged by being dropped into a central storage recess of the main body; terminals arranged by being dropped into storage recesses on both ends of the main body; an opening of the main body An operating body provided on the side of the main body; and a timer opening / closing contact mechanism which is disposed near the bottom of the central accommodating recess of the main body and is operated by the timer mechanism. Dynamic switch.