JPH0424810B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an illuminated pushbutton switch.

Conventional light-emitting pushbutton switches have had the disadvantage that the size of the light-emitting pushbutton switch becomes large due to the mounting structure of a lighting device such as a lamp for illumination. The present invention has been made for the purpose of providing an illuminated push button switch which is small in size and operates reliably.

In the present invention, a partition plate 3 is provided in the middle of a cylindrical body 2 whose lower end is provided at a base 1, an illumination part is provided in the upper chamber of the cylindrical body 2 partitioned by the partition plate 3, and a micro switch part is provided in the lower chamber. The other end of a conductor 8 having a contact at one end for switching the contact in the micro switch section is locked to an actuating body 12 disposed in the lateral direction of the micro switch section.
2 is provided so as to move up and down along the inner surface of the cylindrical body 2, and a rod-shaped grip part 30 is provided in a lamp socket 26 which is detachably provided in the illumination part and protrudes upward. be.

As described above, in the present invention, the cylindrical body 2 is partitioned by the partition plate 3 provided halfway inside the cylindrical body 2, the illumination part is provided in the upper chamber of the cylindrical body 2, and the micro switch part is provided in the lower chamber. The switch part is separated from the switch part by a partition plate 3, and parts can be replaced or repaired individually without affecting other parts. The other end of the conductor 8 having a contact point at one end to be switched is locked to the actuating body 12 arranged laterally in the micro switch section, and the actuating cylinder 23 that actuates the actuating body 12 is moved along the inner surface of the cylindrical body 2. Since the micro-switch section is designed to move up and down, the micro-switch section can be operated from a position next to the micro-switch section, and the height of the micro-switch section can be lowered to make it smaller and lighter.In addition, the contact point in the micro-switch section can be switched. The other end of the conductor 8 having a contact point at one end is locked to an actuating body 12 disposed laterally of the micro switch section, and this actuating body 12
When the actuating cylinder 23 that operates the cylindrical body 23 is provided to move up and down along the inner surface of the cylindrical body 2 for switching, there is no need to apply direct force to the conductor 8 itself that performs the switching and forcibly deform it. Not only does the switch part not break down, but its lifespan is extended and it can be used for a long period of time.Furthermore, a rod-shaped grip part 30 is provided in the lamp socket 26, which is removably provided in the illumination part, and protrudes upward. treasure,
The lamp socket 26 can be easily attached and detached, and repairs such as assembly and parts replacement can be easily performed.

The present invention will be described in detail below based on one embodiment.

The present invention provides a normally open contact to a normally open terminal 4 on the base 1 of a lower chamber formed by a partition plate 3 provided halfway inside a cylindrical body 2 inserted into a base 1 made of an appropriate material with good insulation properties. A normally open contact 5 and a normally closed contact 7 facing each other are provided on a normally closed terminal 6 which is set upright on the base 1 in an inverted L shape.
The rear end of the notch 22 of the conductor 8, which has good conductivity and has switching contacts 21 and 21' at its tip that move toward and away from the actuator 12, is locked in the locking groove 13 of the actuating body 12.

The actuating body 12 is made of an appropriate material, and its lower end is branched into three fork-like parts, and the lower end of the return spring 14 inserted into the center branch is inserted into the support guide hole 15.
In addition, the pusher piece 11 has a locking protrusion 17 provided on the back surface thereof inserted into the locking hole 16 of the actuating body 12, and a guide groove 19 provided vertically on the front surface has a notch portion of the conductive body 8. The guide protrusion 18 provided on the upper end of the rear surface of the common terminal 10 is inserted into the common terminal 10, and the locking groove 20 on the front surface of the common terminal 10 is made of a material with good conductivity such as metal. The rear end of the elastic piece 9 is rotatably locked.

The front end of the elastic piece 9 is engaged with the front end of the notch 22 of the conductor 8.

The upper end of the pushing piece 11 is brought into contact with the lower end of the actuating piece 24 of the actuating cylinder 23 inserted from above so as to be able to move up and down inside the cylindrical body 2 inserted from the opening of the partition plate 3, and is placed on the partition plate 3. A lamp socket 26 made of an appropriate material and removably fitted into the upright gutter-like support 25.
A lamp insertion hole 28 is drilled in the lamp socket 26 for attaching a flange base type lamp 27, and a grip part 30 having a window 29 near the upper end is erected at one end of the upper surface of the lamp socket 26. A conductive plate 31 provided on the outer surface extends to the vicinity of the lower opening of the lamp insertion hole 28.

The conduction plate 31 is provided with a locking portion 32 formed by an appropriate means such as a concave or convex shape, so that it slightly bites into the inner surface of the gutter-like support 25 at a position where it contacts the conduction plate 31 when the lamp socket 26 is inserted. A locking body 34 for locking the locking portion 32 provided on the conduction plate 31 is provided on the inner surface of the contact plate 33 erected on the partition plate 3 . Further, a connection plate 36 having elasticity and connected to the bottom terminal 35 is provided at the inner bottom of the trough-like support 25 .

Note that the lamp socket 26 and lamp insertion hole 28
There is a fixing plate 37 in which the tip of the extension of the conductive plate 31 is bent slightly inward from the lamp insertion hole 28.
The lamp is fixed in place. 38 is the lamp 27
39' is an external terminal connected to the contact plate 33, 40 is a return spring provided on the operating cylinder 23, and a locking member 41, such as a collar, is provided at the upper end of the cylinder 2. A screw 42 is formed only on the upper side surface of the cylindrical body 2, a mounting portion 44 of an elastic member 43 for mounting is provided below the screw 42, and a fixing clamping body is screwed onto the upper screw 42. A part of the screw 46 provided on the inside of the screw 45 is cut out to form a vertical groove 47 for passing through the mounting protrusion, and the tightening body 45 is screwed onto the screw 42, or a protruding attachment portion is used instead of the tightening body 45. 4
4 are provided with engaging portions 48 of two elastic members 43 for attachment so as to wrap around the cylindrical body 2 in a detachable manner.

Each of the mounting elastic members 43 has a pair of locking elastic pieces 49 erected above the screw 42 up to the vicinity of the locking member 41, and one of the two mounting elastic members 43 is provided with a locking elastic piece 49. An elastic piece 50 for preventing rotation is provided between the elastic pieces 49, and the elastic piece 50 for preventing rotation is attached to the screw 42 of the cylindrical body 2.
Small protrusions 52, 5 are provided on both sides near the upper end of the elastic piece 50 for preventing rotation, and fit into the groove 51 provided vertically in the
2' is a protrusion 5 provided at the upper end of the cylindrical body 2.
It is positioned to hold 3. 54 is a lid piece that covers the operating cylinder 23, and 55 is a hole 5 in the cylinder 2.
A fitting protrusion 57 is fitted into 6 to allow the operating cylinder 23 to move up and down, and a groove 57 is used to insert the lower end of a partition wall 58 that partitions the two microswitches.

In this embodiment, the locking body 34 is a protrusion and the locking portion 32 is a convex shape, but the shape is not limited to this, and any suitable method may be used.

In the embodiment of the present invention, the shape of the lamp socket is a cylindrical shape with a portion cut away, but the shape is not limited to this.

Further, the shape of the mounting elastic piece used when mounting the illuminated push button switch on a panel etc. is not particularly limited, and the mounting portion 44 of the mounting elastic member 43
For example, the shape may be a groove, and an elastic member for attachment may be shaped to fit into the groove.

By configuring the present invention as described above, the lamp 27 (flange base type lamp) is connected to the conductive plate 31 through the lower opening of the lamp insertion hole 28 of the lamp socket 26.
Insert until it reaches . At this time, the lamp 27 is inserted so as to spread the fixed plate 37 apart.

The lamp socket 26 fitted with the lamp 27 is inserted into the trough-like support 25. At this time, the contact plate 33
contacts the conductive plate 31 of the lamp socket 26, and the locking portion 32 is locked to the locking body 34. Further, the bottom terminal 35 of the lamp 27 comes into contact with a connection plate 36 provided at the inner bottom of the trough-like support 25, and the lamp illumination circuit connects the external terminal 39-contact plate 33-conducting plate 31.
- base 38 - lamp 27 - bottom terminal 35 - external terminal 39'.

Next, when the lid piece 54 is pressed downward, the operating cylinder 23
moves downward, and accordingly moves the actuating piece 24 downward.

Therefore, the push piece 11 of the microswitch is pushed down, and the actuating body 12 moves downward together with the push piece 11 against the return spring 14. When the conductor 8 is located below the locking groove 20, the moment of the elastic force of the elastic piece 9 moves the conductor 8 around the locking groove 13 as a fulcrum.
A moment moves downward, and the contacts 21 and 21' of the microswitch move to the normally open contact 5.

Next, when the pressure on the lid piece 54 is released, the pressure on the press 11 is released due to the repulsive force of the return spring 40, the actuating body 12 is moved upward by the return spring 14, and the conductor 8 is moved above the locking groove 20. When positioned, the elastic force moment of the elastic piece 9 becomes a moment that moves the conductor 8 upward using the locking groove 13 as a fulcrum, and the contacts 21 and 21' of the microswitch move from the normally open contact 5 to the normally closed contact 7.

Further, when removing the lamp socket, by inserting the tip of a tool such as tweezers or a screwdriver into the window 29 of the gripping part 30 and pulling it upward, the locking body 34 is unlocked and the lamp can be replaced.
In other words, the grip portion 30 of the lamp socket 26 is located directly above the contact plate 33, and the contact plate 33 moves slightly backward.

In addition, when attaching the present invention to a panel or the like and fixing the cylindrical body 2 with the fixing clamping body 45, the clamping body 45 is inserted after the cylindrical body 2 is inserted into a hole (not shown) in the panel board. Install and fix.

At this time, the screw 46 of the tightening body 45 can be inserted into the cylindrical body 2 without any problem since a vertical groove 47 for passing the mounting protrusion is provided at a position corresponding to the mounting body 44.

Next, when fixing with the mounting elastic material 43, the engagement portion 4 of the mounting elastic material 43 is attached to the mounting portion 44 of the cylindrical body 2.
8 and install it. At this time, the rotation preventing elastic piece 50 provided on one of the mounting elastic members 43 is inserted into the groove 51 of the screw 42.

After this, when inserting the cylindrical body 2 with the mounting elastic material 43 attached into the hole in the panel board, insert the elastic piece for preventing rotation into a small hole (not shown) in the hole in the panel board. 2 rotation is prevented.

The present invention is constructed and operated as described above, so that most of the pressure applied to the cover piece 54 is transmitted to the push piece 11 of the microswitch via the return spring 40 of the actuating cylinder 23 and the actuating piece 24.

The pressing force applied to the pushing piece 11 is absorbed by the return spring 14 via the actuating body 12, and no pressing force is applied to the conductor 8 itself.

Therefore, the life of the microswitch can be greatly extended without deforming the conductor 8 itself, and it can also be made smaller, with the size of the microswitch body being approximately 5 mm in width, 12 mm in length, and 10 mm in height. 2 micro switches can be attached to the round base with a diameter of about 15 mm.

In addition, the lamp for illumination can be easily installed and removed, and the lamp socket itself is connected to the contact plate 33.
By being securely locked by the locking body 34, it is possible to prevent separation due to vibration or the like.

Therefore, according to the present invention, it is possible to provide an illumination push button switch that is small in diameter, 15 mm in diameter and 30 mm in height, and has two contacts, and has a simple structure, which allows it to be produced in large quantities at low cost. It has excellent effects.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a partially cutaway perspective view of the present invention, FIG. 2 is an exploded perspective view of the same, FIG. 3 is a plan view of a cylindrical body, and FIG. 5 is a partially cutaway front view of the lamp socket, FIG. 5 is a side view of the same, FIG. 6 is a sectional view of the central part of the present invention, FIG.
Figure 8 is a sectional view of the micro switch section, Figure 9 is an exploded view of the cylindrical body attachment part, Figure 10 is a perspective view of an embodiment using a clamping body, and Figure 11 is an example using an elastic piece for attachment. FIG. 2 is a perspective view of an embodiment. 1 is a base, 2 is a cylindrical body, 3 is a partition plate, 4 is a normally open terminal, 5 is a normally closed contact, 6 is a normally closed terminal, 7 is a normally closed contact, 8 is a conductor, 9 is an elastic piece, 10 is a common terminal,
11 is a push piece, 12 is an operating body, 13 is a locking groove, 14
15 is a return spring, 15 is a support guide hole, and 16 is a return spring.
is a locking hole, 17 is a locking protrusion, 18 is a guide protrusion,
19 is a guide groove, 20 is a locking groove, 21, 21' are switching contacts, 22 is a notch, 23 is an operating cylinder, 24
25 is a gutter-like support, 26 is a lamp socket, 27 is a lamp, 28 is a lamp insertion hole, 29
is a window part, 30 is a grip part, 31 is a conduction plate, 32 is a locking part, 33 is a contact plate, 34 is a locking body, 35 is a bottom terminal, 36 is a connection plate, 37 is a fixing plate, 38 is a cap,
39, 39' are external terminals, 40 is a return spring, 41 is a locking member, 42 is a screw, 43 is an elastic material for mounting, 44 is a mounting portion, 45 is a tightening body, 46 is a screw, and 47 is a mounting projection. vertical groove for passage; 48 is an engagement portion;
49 is an elastic piece for locking, 50 is an elastic piece for preventing rotation,
51 is a groove, 52 is a small projection, 53 is a projection, 54 is a lid piece, 55 is a fitting projection, 56 is a hole, 57 is a groove, and 58 is a partition wall.

Claims (1)

[Claims] 1. A partition plate is provided in the middle of the cylindrical body with the lower end as the base, and an illumination part is provided in the upper chamber of the cylindrical body partitioned by the partition plate, and a micro switch part is provided in the lower chamber, and the contact point in the micro switch part is provided. The other end of the conductor that has a contact at one end to be switched,
An actuating cylinder that locks onto an actuating body placed laterally in the micro switch section and operates the actuating body is provided so as to move up and down along the inner surface of the cylinder, and is attached to a lamp socket that is detachably attached to the illumination section. An illuminated push button switch characterized by having a rod-shaped grip part that protrudes upward.