JPH059889B2 - - Google Patents

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention relates to a slow-acting switch, and includes a timer mechanism and a first switching contact mechanism that opens and closes in response to the operation of an operating body. For example, the lamp of the lighting equipment is controlled to turn off immediately when the operating body is operated, and the fan is controlled to stop driving later than the operation of the operating body. This invention relates to the arrangement of contact mechanisms in switches that can be used.

(Prior Art) In the conventional slow-acting switch of this type, for example, as described in Japanese Utility Model Publication No. 47-39590, a timer mechanism is attached to a board that is housed and fixed in a switch case, and this board is mounted inside the case. The structure is such that it can be stored and fixed in place.

In addition, as described in Japanese Utility Model Publication No. 51-36223, there is also an opening/closing contact mechanism that is opened and closed by the operation of an operating body, a cam lever that is driven by the operation of this operating body, and a cam lever that is opened and closed by this cam lever. A structure is known that includes a micro switch that operates the cam lever, and an electric motor that rotates a cam plate that operates the cam lever.

(Problems to be Solved by the Invention) In the slow-acting switch having the structure described in the above-mentioned Japanese Utility Model Publication No. 47-39590, it is necessary to use a timer mechanism to provide an opening/closing mechanism that immediately responds to the operation of the operating body. It is common to have a structure in which an opening/closing contact mechanism that is operated by the switch and an opening/closing contact mechanism that responds to the operation of the operating body are arranged in parallel within the switch body. however,
It is not possible to simply arrange in parallel a switching contact mechanism that directly responds to the operating body and a switching contact mechanism that is operated via a timer mechanism operated by the operating body, and it is not possible to arrange both switching contact mechanisms in parallel. It requires a large space to install and is large, and if the insulation distance between the two switching contact mechanisms and the two switching contact mechanisms are of different polarity, it is necessary to maintain a distance that will not be affected by the arc of the circuit. The problem is that the entire switch becomes large.

Furthermore, the structure described in Japanese Utility Model Publication No. 51-36223 includes an opening/closing contact mechanism that is opened and closed by an operating body and a micro switch that is opened and closed by a cam lever. It is covered with an insulating case and can be placed close to the opening/closing contact mechanism, but this requires the use of an expensive micro switch, and requires space for the micro switch, making the entire switch large. A problem arose.

The present invention has been made in view of the above problems, and includes a first switching contact mechanism that opens and closes in response to the operation of the operating body, and a second switching contact mechanism that is activated by the operation of the operating body via a timer mechanism. and can be placed easily,
Further, the present invention provides a slow-acting switch that can maintain a sufficient insulation distance between both opening/closing contact mechanisms, can be made compact as a whole, and is easy to assemble.

[Structure of the Invention] (Means for Solving the Problems) The slow-acting switch of the present invention has a box-shaped switch body having an opening and storage recesses in the center and both ends communicating with the opening. a timer mechanism that is housed in the central storage part of the main body by being dropped into the central storage part of the main body; a terminal that is arranged by being dropped into the storage recesses on both ends of the main body; a first opening/closing contact mechanism that is disposed on the opening side of the main body located above the timer mechanism and opens and closes in response to the operation of the operating tool, and a central storage recess of the main body. It is characterized by comprising a second opening/closing contact mechanism disposed close to the timer mechanism on the bottom side thereof and operated by the timer mechanism.

(Function) The slow-acting switch of the present invention has a first
When the opening/closing contact mechanism is opened, the timer mechanism can be activated by operating the operating body, and the second opening/closing contact mechanism can be operated with a delay by operating the operating body. In addition, since the first and second opening/closing contact mechanisms are arranged separately on the opening side of the main body and on the bottom side of the central storage recess that houses the timer mechanism, the arrangement can be made easily and the insulation distance can be taken into consideration. It is possible to make the device more compact without having to take any special measures.Furthermore, since the second opening/closing contact mechanism that responds to the timer mechanism is disposed using the bottom of the main body,
The structure is simple without requiring special means such as positioning, and it can be easily integrated into the main body.

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

In FIGS. 1 and 2, 1 is a switch main body, which is formed into a box shape with an open top surface, and the main body 1 has a central storage recess 3 that communicates with the openings on the top surface, and terminals are stored at both ends. Storage recesses 2, 2 are formed, one terminal board 4 is placed in one terminal storage recess 2, and a pair of left and right terminal boards 5, 6 are dropped into the other terminal storage recess 2 from the opening. The terminal plates 4, 5, and 6 are arranged and housed by locking pieces 7, respectively.

Next, 8 is a first opening/closing contact mechanism, which is composed of a movable element 10 having a movable contact piece 9, and a fixed contact piece 11 with which the movable contact piece 9 of this movable element 10 approaches and separates. The movable element 10 is moved from the upper edge of the one terminal plate 4 to the upper part of the central storage recess 3, that is, the main body 1
The supporting frame portion 12 extends horizontally to the opening side of the
is supported by A concave pivot portion 13 bent into a substantially V-shape is formed on both sides of the support frame portion 12, and a movable member 10 fitted to the support frame portion 12 is provided on both sides of the pivot portion 13. The branch portion 14 is swingably supported. The lower end of this movable element 10 has a movable contact piece 11 extending from the upper edge of the other terminal plate 6 to a fixed contact piece 11 extending below the support frame 12 above the central storage recess 3. A contact piece portion 9 is formed. Further, a support shaft 16 is secured to the lower end of a coil spring 15, one end of which is secured to the upper end of the movable element 10, below the support frame portion 12.

Next, 17 is a second opening/closing contact mechanism, which includes a movable elastic contact plate 18 connected to one terminal plate 4 by welding or the like, and a fixed contact plate 18 connected to the other terminal plate 5 on one side. The fixed contact piece 19 is arranged at the bottom of one side of the storage recess 3 of the main body 1, and the movable contact piece plate 18 is arranged above the fixed contact piece 19. has been done.

Further, 20 is a timer mechanism, which is housed in the central storage recess 3 of the main body 1 by being dropped from the top opening. As shown in FIG. 4, this timer mechanism 20 has a timer case 21, and a timer section (speed regulating section) is built into the timer case 21. A recessed step 22 is formed at the lower part of one side of the timer case 21, in which the fixed contact piece 19 and the movable contact plate 18 are disposed, and the second open/close contact mechanism 1
7 is disposed on the bottom side of the central storage recess 3 of the switch body 1 in close proximity to the timer mechanism 20.

The timer case 2 of this timer mechanism 20
1 has a main shaft 25 protruding from which a ratchet ratchet wheel 24 rotatably provided at the top end 23 of the timer portion is fixed, and a set/reset mechanism, for example, is mounted on the main shaft 25 facing the outer surface of one side of the case 21. , cam 26
is installed.

One end of a coil spring 27 is engaged with the protrusion 26a of the cam 26, and the other end of the spring 27 is engaged with the lower portion of one side of the case 21.
Further, this cam 26 is formed with a cam edge 28 that presses the movable contact piece plate 18 against the fixed contact piece 19.

The timer case 21 has a ratchet ratchet wheel 24 protruding from one side, and the dimension from the end of the main shaft 25 to the end side surface is approximately the same as the width of the central storage recess 3 of the main body 1. The cam 26 and the spring 27 are disposed in a space formed between one side of the timer case 21 housed in the recess 3 and the inner side of the central storage recess 3.

Further, the timer case 21 of the timer mechanism 20
Inside, there is a No. 1 gear 29 which is coupled to the No. 1 stem 23 and the ratchet ratchet wheel 24 for rotation only in one direction, and this No. 1 gear 29 is rotated by the spring 3.
0, it is biased in the direction of engagement with the ratchet ratchet wheel 24. Further, inside the timer case 21, a first stem 23 and a second pinion 31 that meshes with the first stem 23 are arranged in parallel, and a second pinion 32 that is integrated with the second pinion 31 is connected to the first stem. A slow gear group consisting of a third gear 34, a fourth gear 35, a fourth gear 36, and a fifth gear 37 mesh with a third pinion 33 on the same axis as the stem 23 and are arranged on mutually parallel axes. An escape gear 38 is integrally provided on the fifth pinion 37, and a crown 40 is attached to an ankle shaft 39 that engages with the escape gear 38.

As described above, the timer mechanism 20 includes a timer section (speed regulating section), a set mechanism for moving the fixed contact piece 19 and the movable contact piece section 18 toward and away from each other, and a cam 26 as a reset mechanism.

Next, reference numeral 41 denotes an operating body, and as shown in FIGS.
A shaft portion 42 located higher up and protruding from both sides is rotatably engaged with a shaft support recess 44 formed on both sides of the lid body 43. An operating portion 46 protrudes from a lower portion of one side of the operating body 41, which is disposed on one side of the central storage recess 3 of the main body 1 and engages with an actuated portion 45 formed on the cam 26. The operating surface of the operating portion 46 of the operating body 41 is approximately located between the inner surface of the central storage recess 3 of the main body 1 and the side surface of the timer case 21 of the timer mechanism 20 with respect to the cam 26 of the set/reset mechanism. arranged in orthogonal directions.

Further, the operating body 41 is formed into a box shape with an open bottom surface, and the upper part of the movable element 10 is disposed inside.

Further, the lid body 43 is attached to the upper surface of the main body 1 with a mounting bracket 47, the terminal plates 4, 5, and 6 are held by this lid body 43, and the upper surface opening of this lid body 43 is used for the operation. An upper surface operating section 48 of the body 41 is arranged.

Next, the operation of this embodiment will be explained.

When assembling, when the timer case 21 of the timer mechanism 20 is dropped into the central storage recess 3 of the switch body 1 and stored, there is a space between one side of the timer case 21 and the inner surface of the side wall of the central storage recess 3 of the main body 1. A cam 26 of a set/reset mechanism is provided.

Further, terminals 4, 5, and 6 are dropped into the terminal storage recesses 2 and 2 at both ends of the main body 1 and stored therein. that time,
The first and second opening/closing mechanisms 8 and 17 connected to the terminals 4 and 5 respectively are arranged on the opening side of the main body 1 located above the timer mechanism 20 and on the bottom side of the central storage recess 3 of the main body 1. Disposed proximate to mechanism 20. When the operating body 41 is attached to the main body 1, the operating surface of the operating part 46 of the operating body 41 is aligned with the cam 26 of the set-reset mechanism, the inner surface of the storage recess 3 of the main body 1, and the side surface of the timer case 21 of the timer mechanism 20. It is arranged in a substantially orthogonal direction between the two parts.

Next, when the operating body 41 is swung clockwise as shown by the chain line from the state shown by the solid line in FIG. The shaft 16 is moved to the left side in FIG. 1, the spring 15 passes the dead center position, and the mover 10
4 is pivotally supported on the pivot portion 13, the movable element 10 rotates counterclockwise in FIG. The mechanism 8 is opened in response to the operating body 41.

Further, when the operating body 41 rotates, the operating portion 46 pushes the actuated portion 45 of the cam 26 of the set/reset mechanism, causing the cam 26 to rotate counterclockwise in FIG. The edge 28 pushes the movable contact plate 18 of the second opening/closing contact mechanism 17, and the movable contact plate 18 is brought into contact with the fixed contact piece 19 and closed. Further, the rotation of the cam 26 causes the spring 27 to expand and store energy. At this time, since the operating surface of the operating section 46 of the operating body 41 is substantially perpendicular to the operated section 45 of the cam 26 of the set/reset mechanism, the operation is transmitted from the operating section 46 to the cam 26 well. be exposed. When the cam 26 rotates, the ratchet ratchet wheel 24 is rotated counterclockwise in FIG. 1, but the No. 1 gear 29 is not rotated.

When the operating body 41 is pushed in this state, the operating body 41 changes from the chain line state in FIG. 1 to the solid line state, and the support shaft 16 moves to the left side in FIG. 1 in the opposite direction to that described above.
The spring 15 reverses the movable member 10, and the movable contact piece 9 of the first opening/closing contact mechanism 8 separates from the fixed contact piece 11 and is opened. And spring 15
As a result, the movable member 10 is held in the inverted state shown in FIG.

In addition, when the operating body 41 is rotated, the operating portion 46 can be rotated.
The actuated portion 45 of the cam 26 is released from being pressed and held, and the cam 26 is rotated clockwise in FIG. 1 by the stored spring 27. The rotation of the cam 26 causes the ratchet ratchet wheel 24 to rotate, and the clockwise rotation of the ratchet ratchet wheel 24 in FIG. to 2nd kana 3
The first and second gears 32, the third pinion 33, the third gear 34, the fourth pinion 35, the fourth gear 36, and the fifth pinion 37 are meshed in sequence, and the escape gear 38 and crown 40 are used to sequentially disentangle and rotate the mesh. , the movable contact plate 18 that was engaged with the cam edge 28 immediately before the rotation of the cam 26 was stopped by the release of the stored force of the spring 27.
is disengaged, and the elasticity of the movable contact plate 18 applies a separating force to separate it from the fixed contact piece 19.
The second switching contact mechanism 17 is opened. In the above embodiments, a movement mechanism has been described as the timer mechanism, but the structure is not limited to this, and a timer mechanism using an electric motor or the like may also be used.

Therefore, the first opening/closing contact mechanism is opened and closed by operating the operating body 41, and the timer mechanism is activated by operating the operating body, and the second opening/closing contact mechanism is operated with a delay by operating the operating body. be able to.

[Effects of the Invention] As described in detail above, the present invention stores the timer mechanism and the terminal by falling into the storage recesses provided in the center and both ends of the box-shaped switch body, and A first opening/closing contact mechanism that opens and closes in response to the operation of an operating body provided on the main body side is disposed on the opening side of the main body located above the timer mechanism, and a second opening/closing contact mechanism that is operated by the timer mechanism is arranged on the opening side of the main body located on the upper side of the timer mechanism. Since the opening/closing contact mechanism is arranged close to the timer mechanism on the bottom side of the central storage recess of the main body, the timer mechanism and terminals can be easily stored and arranged in the main body by dropping them into the main body. 1. Since the second opening/closing contact mechanism is arranged separately on the opening and bottom sides of the main body, the arrangement can be done easily and without particular consideration of insulation distance. In particular, since the second switching contact mechanism is located along with the timer mechanism on the bottom side of the central storage section of the main body, no special means is required to install the second switching contact mechanism, and the structure is simple. Therefore, it can be done almost simultaneously with the arrangement of the terminal timer mechanism, etc., making assembly easy. Furthermore, since the first and second opening/closing contact mechanisms are disposed substantially coaxially with respect to the main body, it is possible to make the device compact, and it is possible to configure it as a single module similar to a general wiring device.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional front view of a slow-acting switch showing an embodiment of the present invention, Fig. 2 is a partially cutaway front view showing the shaft support of the above operation body, and Fig. 3 is a front view of the opening/closing contact mechanism section of the same. The perspective view and FIG. 4 are longitudinal sectional side views of the timer mechanism. 1... Switch body, 8, 17... Opening/closing contact mechanism, 20... Timer mechanism, 35... Operating body, 4,
5, 6...terminal.

Claims (1)

[Scope of Claims] 1. A box-shaped switch main body having an opening and storage recesses at the center and both ends communicating with the openings; and stored by falling into the central storage recess of the main body. a timer mechanism; terminals disposed by falling into storage recesses on both ends of the main body; an operating body provided on the opening side of the main body; and the main body located above the timer mechanism. a first opening/closing contact mechanism disposed on the opening side of the main body and opened and closed in response to the operation of the operating body; a first opening/closing contact mechanism disposed close to the timer mechanism on the bottom side of the central storage recess of the main body; A slow-acting switch comprising: a second opening/closing contact mechanism operated by;