JPS64678Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a contact piece stator for a switch.

Generally, when controlling multiple circuits with one device, multiple switches are required. For example, in a washing machine, when a single time switch is used to time-limit multiple circuits, such as the main switch of the washing motor, the motor's forward/reverse switch, and the wash end buzzer switch, the main shaft rotates at a constant rate using a clock device. Cams are stacked on top of each other, and switch contacts for each circuit are disposed at positions corresponding to the cams, so that timed control of each circuit is performed. However, conventionally, the contact pieces of each of the above-mentioned switches are inserted into only one contact piece stator formed of a synthetic resin material, and are integrated, so each of the above-mentioned control circuits can be selectively connected as needed. When increasing or decreasing the number of circuits, it is necessary to mold a new switch that corresponds to the cam configuration according to the number of circuits. It was incompatible and inconvenient.

Therefore, this idea was made in view of the above circumstances, and the contact piece stator in which the contact piece of each switch driven by the cam is inserted is formed independently, and these contact piece stators are connected to the first and second switches. 2, and switches having such contact piece stators are stacked one on top of the other according to the required number of switches corresponding to the configuration of the cam according to the controlled circuit. This is a switch contact piece stator that is rational and economical and can be easily attached to the main body of the device.

An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show switches formed with the armature stator of the present invention, and each switch is formed from the armature stator of two types, a first and a second type.

S1 is a switch consisting of a first form of contact piece stator A made of a synthetic resin material, 1 is a holding part;
Reference numeral 2 denotes an extended step portion, which is integrally molded in a step shape at one end in the longitudinal direction of the holding portion 1, and has a through hole 3.
is perforated. 4 is a step-like piece portion which is attached to the holding portion 1;
It is integrally molded on the other end in the longitudinal direction, and an engaging portion 6 is formed at the fitting protrusion 5 and the end in a direction perpendicular to the longitudinal direction. Further, a contact piece 7 and a contact piece 8 having a cam contact portion 8a are inserted into the holding portion 1. Reference numeral 9 denotes an insulating wall integrally formed with the holding portion 1, which separates the fixed terminal portions 7a and 8b of the contact pieces 7 and 8, respectively.

S2 is a switch made of a second form of contact piece stator B made of a synthetic resin material; 10 is a base;
Reference numeral 11 denotes a through hole bored at one end in the longitudinal direction of the base 10, and reference numeral 12 denotes a pair of ribs formed on the side surface of the other end of the base 10. Further, 13 is the pair of ribs 12
A long hole-shaped fitting hole is formed between the two and along the side surface of the base 10, and the inner diameter of the fitting hole 13 is equal to the fitting protrusion 5 formed on the first armature stator A. The outer diameter of the fitting protrusion 5 is slightly smaller than the outer diameter of the fitting protrusion 5 so as to fit into the fitting protrusion 5. 14 is a pair of locking pieces, which are connected to the rib 12.
At the upper end of the base 10 on the side where the base 1 is formed,
0, respectively, and the distance l1 of each locking piece is formed to be approximately the same size as the width l2 of the stepped piece portion 4 of the contact piece stator A of the first form. has been done. Reference numeral 15 denotes a recess formed in the lower part of the base 10, into which the holding portion 1 of the contact piece stator A of the first form is fitted, and the contact piece of the first form is fitted into the recess 15. Fitting protrusion 5 of stator A
is fitted into the fitting hole 13 formed in the base 10, and with the through holes 3 and 11 of the contact piece stators A and B of the first and second forms facing each other, the holding part 1 is inserted into the recess 15. are formed in a position where they can be fitted. 16 and 17
is a contact piece, which is integrally formed into the base 10 by insert processing. 18 is an insulating wall, and the base 10
The respective contact pieces 16,
17 fixed terminal portions 16a and 17a are isolated from each other.

S3 is a switch assembled in the same manner as the first form of contact piece stator A made of a suitable synthetic resin material, and the switch S3 consists of three contact pieces 19, 20 and 21, and is fixed. The insulating walls 22 and 23 isolate the terminals 19a, 20a and 21a.
However, the other configurations are the same as the contact piece stator A of the first form of the switch S1, and the same parts are given the same reference numerals and redundant explanation will be omitted.

The method of assembling each switch based on the above configuration will be explained. First, in order to assemble the switch S2 to the switch S1, the holding part 1 of the contact piece stator A of the first form is fitted into the recess 15 of the contact piece stator B of the second form, and the fitting protrusion 5 into the fitting hole 13. Next, in order to assemble the switch S3 to the upper surface of the switch S2, the engaging portions 6 of the first form are attached to the lower surfaces 14a, 14a of the engaging pieces 14, 14 of the contact piece stator B of the second form. 6 so that the upper surfaces 6a, 6a abut each other, and each of the engaging pieces 14,
The stepped piece part 4 of the first form is held in the gap 14b, and the base part 1 of the contact piece stator B of the second form is
The contact piece stator A of the first form is placed on the upper surface of 0, and the assembly is completed.

To install the switch S assembled as described above in a device, first attach the width l2 of the stepped piece 4 of the first contact piece stator A to the peripheral edge of the base plate 22 of the device to which it is attached.
A recess 23 of the same size is formed, and a through hole 2 of the same diameter is formed in the extending step 4 at a position corresponding to the through hole 3 of the perforation.
4 and attach one end to the switch S as shown in Figure 3.
The engaging portion 6 formed on the stepped piece portion 4 of the contact piece stator A of the first form constituting the contact piece stator A is engaged with the recess 23 formed on the base plate 22 and fixed, and the other end is screwed. 2
5 to attach the switch S to the base plate 22 of the equipment or the like.

In the above explanation, for convenience, the switch S is stacked in three stages, but if the switch is to be stacked in four stages, the switch S3 as described above is used.
It is sufficient to install the contact piece stator B of the second form as the switch 4 on the upper part of the contact piece stator A of the first form.Furthermore, when the switch S is arranged in five stages, the second form of the switch The contact piece stator A of the first form may be stacked as the switch 5 on top of the contact piece stator B of the form. In this way, any number of switches can be accommodated. Needless to say, the number of switch contacts can be determined arbitrarily.

An embodiment in which the switch S constructed as described above is attached to a time switch having a multistage cam construction will be described with reference to FIG. 4.

Reference numeral 26 indicates an upper base plate, and 27 indicates a base plate. A main shaft 28 is rotatably supported on the upper and lower base plates, and a spring (not shown) is attached to the main shaft, and a gear system 29 is linked to the well-known clock. It constitutes a mechanism.
Also, the main shaft 2 passing through the upper and lower base plates 26 and 27
A first cam 30a and a second cam 3 are provided at the tip of the cam 8.
A cam group 30 consisting of three tiers of cams 0b and 30c is loosely fitted, and a cam group 30 of three tiers S1, S2 and S3 driven by the cam group 30 is loosely fitted on the upper surface of the upper base plate 26. The switch S according to the present invention is installed by the above-described method of attachment to the equipment.

With this configuration, when the main shaft 28 is rotated to wind up the mainspring, accumulate biasing force, and release it, the timepiece device is rotated at a constant speed, and at the same time, the cam 5 loosely fitted to the main shaft 28 is rotated via the main shaft 28. The switches S1, S2 and S3 are turned on and off according to the programs formed in the cams 30a, 30b and 30c.

As described above, in the present invention, the contact piece stator of the switch, which is driven by a group of cams stacked in multiple stages, is placed in the first position.
and second two forms A and B, and the contact piece stator A of the first form includes a holding part 1 having a plurality of contact pieces 7 and 8 by insert processing, and the holding part 1.
is integrally formed on one side of the
It is constituted by an extending step portion 2 formed with a step portion 2, and a stepped piece portion 4 integrally formed on the other side of the holding portion 1, and the stepped piece portion 4 is formed with an upwardly protruding portion. an engaging portion 6 formed perpendicular to the longitudinal direction extending from the holding portion 1 to the stepped piece portion 4 and oriented in the same direction as the plurality of contact pieces.
are formed at the end portions, and on the other hand, the second form of the contact piece stator B has a plurality of contact pieces 16, 1 approximately at the center.
7 is formed by insert processing, a through hole 11 is formed at one end in the longitudinal direction of the base 10, and a long hole-shaped fitting is formed at the other end with a long cut along the side surface. A hole 13 is provided, and a pair of locking pieces 14 are integrally molded, and a recessed notch of a size in which the holding part 1 of the contact piece stator A of the first form is fitted is provided approximately at the lower center of the base part 10. 15, it has the following effects.

Since the switches S corresponding to each cam stacked in multiple stages are independent, even if the cam configuration is changed according to the number of control circuits, the number of switches S corresponding to the cam can be easily increased or decreased. , it is rational and economical without the problems of having to mold the entire switch as in the past.

Assembling each switch S is a simple task of fitting the fitting protrusion 5 and the fitting hole 13, and locking the engaging part 6 and the locking piece 14.
Furthermore, installation to the device is an extremely easy task, locking one end and screwing the other end with 251 screws, compared to the conventional method of attaching to the device body using two screws. This has the effect of reducing the number of parts and reducing the number of man-hours.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; Fig. 1 is an exploded perspective view, Fig. 2 is a perspective view showing the state in which each contact piece stator is assembled, and Fig. 3 is a diagram showing how the main plate of equipment, etc. is attached. FIG. 4 is a perspective view showing the method of attachment, and FIG. 4 is a drawing showing the state in which it is attached to a time switch. 1: Holding part, 2: Extending stepped part, 3, 11: Through hole, 4: Stepped piece part, 5: Fitting protrusion, 6: Engaging part,
10: Base, 13: Fitting hole, 14: Locking piece, 1
5: recess, S: switch, A: first form of armature stator, B: second form of armature stator.

Claims (1)

[Scope of utility model registration request] Cams having different shapes and overlapped with each other and a switch driven by the cams are provided, and the switch inserts a plurality of contact pieces driven by the cams into the contact piece stator and fixes the contact pieces. In the contact stator of a switch in which multiple stages of children are stacked, each contact stator made of a synthetic resin material has two forms, a first form and a second form. a holding part into which a plurality of contact pieces are inserted; an extending step part integrally formed on one side of the holding part and having a through hole formed at an end;
and a stepped piece integrally formed on the other side of the holding part, and the stepped piece has a fitting protrusion formed to protrude upward, and a stepped piece from the holding part. An engaging part is formed at the end part and is perpendicular to the longitudinal direction extending to the part and oriented in the same direction as the plurality of contact pieces. The child has a base provided with a plurality of contact pieces by inserts at approximately the center thereof, and a through hole is formed at one end in the longitudinal direction of the base, and
The other end is provided with an elongated fitting hole with a long cut along the side surface, and a pair of locking pieces are integrally formed therein, and furthermore, at approximately the center lower part of the base, the fitting hole of the first form is provided. It is constructed by forming a recess into which the holding portion of the piece stator fits, and the piece stator of the first form and the piece stator of the second form are stacked in a superposition manner. The switch's contact piece stator features a special feature.