JPH01105421A - Push lock type push button switch - Google Patents

Abstract

PURPOSE:To allow a switch to be fitted to a fitting hole with a small diameter and facilitate the assembling work by forming a lock device into a unit is a lock device section and arranging it separately from a barrel section above the barrel section inserted into the fitting hole of a panel. CONSTITUTION:A switch has a lock device section 1, a barrel section 2 and a switch section 3 as main component members, a lock device with a large occupied space is arranged separately from the barrel section 2 above the barrel section 2 fixed by a nut 23 inserted into the fitting hole 22a of a panel 22. The assembly is thereby facilitated, the case 12 of the barrel section 2 is made small-sized, and it can be fitted to the fitting hole 22a with a small diameter.

Description

[Detailed description of the invention] [Industrial application field] This invention is a push-button lock type button switch.

More specifically, the present invention relates to a locking device for a push-lock type pushbutton switch.

[Conventional technology]

2. Description of the Related Art Conventionally, as a locking device for a push-lock type pushbutton switch used for an emergency stop, one shown in FIG. 6 is known.

In FIG. 6, Sae is a push rod with a push button 6 screwed into its head and a groove 24a, an inclined surface 24b, and a protrusion 24c at its lower end, and γ is a push rod that is movable in a guide case 32 attached to case I with screws 38. 4 is a lower push rod that is guided by a pace 39 and operates the switch path; 1 and 31 are respective return springs; The operation of the push button switch shown in Figure 6 is as follows.

That is, when the push button 5 is pressed, the push rod is pushed down, and the pin n, which was in contact with the groove 24a provided at the lower end of the push rod, is guided by the inclined surface 24b and moves outward against the splash. . When the push rod U is further pushed down and the pin n rides on the protrusion 24C of the push rod U, the pin n moves inward by the spring and projects onto the upper surface of the protrusion 24C to maintain the pressed state of the push button 5. At this time, the push rod presses down the lower push rod, causing the lower push rod to operate the switch path.

Next, to release the suppressed state of the push button 5, the push button δ is rotated. At this time, the push rod holder also rotates, and as shown in FIG. 7, a groove 24D is formed in the protrusion 24C of the push rod holder, through which the pin 27 can pass and which communicates with the groove 24a. When the return force is applied when the groove 24D of the projection 24C aligns with the groove 24D of the protrusion 24C, the spring force is applied. Return to the position shown in the figure.

[Problem that the invention seeks to solve]

By the way, since the conventional pushbutton pushbutton switch shown in FIG. Mounting hole 33a
If the diameter of the panel is small, the panel cannot be easily installed.

Furthermore, during assembly, each part is sequentially assembled inside the case I, and the assembly work is performed inside the narrow case %, so there is a problem of poor workability.

The present invention has been made in view of the above-mentioned problems, and its object is to provide a push-button rotor type pushbutton switch that can be mounted even in a small-diameter mounting hole and is easy to assemble.

[Means for solving problems]

The above purpose is to provide a cylindrical case that is fitted into a hole of a predetermined size formed in a panel, a cylindrical case that is fitted into the case so as to be movable up and down, is biased upward by a spring, and whose lower end is attached to the lower part of the case. a body portion comprising a first push rod that comes into contact with an operating lever of a switch; a locking member having an inner wall provided with a protruding band having a plurality of notches; and a locking member that is vertically and rotatably fitted into the locking member. a second push rod having a push button attached to its upper end and a lower end abutting the upper end of the first push rod; and a plurality of horizontal holes opening outward provided in the second push rod. a pin that is movably disposed in the locking member, is biased outwardly by a spring, and is capable of passing through a notch in the locking member;
disposed between the locking member and the second push rod;
a torsion spring that biases a push rod upward; and a locking device section provided with an upper part of the body section, the locking device section being located on the front surface side of the panel. This is achieved by a push-button switch.

[Effect]

In the above-mentioned button lock type push button switch according to the present invention, the locking device which occupies a large space is integrated into a unit as a locking device section, and is separated from the main body section on the upper side of the body section which is inserted into the mounting hole of the knob. Because of this arrangement, the case of the body can be made smaller, and it can be attached to a panel even if the attachment hole of the panel is small in diameter.

Furthermore, since it is not necessary to assemble the locking device section within the narrow space of the case of the body section, assembly becomes easy and workability can be improved.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a longitudinal cross-sectional view of a main part of a bushlock type push button switch according to the present invention, and FIG. 2 is a cross-sectional view taken along the line A--A.

As shown in FIG. 1, the main components of this push button switch are a locking device section 1, a body section 2, and a switch section 3.

The locking device section 1 includes two locking members 4 each having a substantially semi-cylindrical shape having a protruding band 43 provided on the upper inner wall, a spring support section 4C provided on the lower inner wall, and an engaging piece 10a protruding from the lower side. and a locking arm that engages with a locking hole provided in the locking member 4;
a hollow cylindrical second push rod 6 which is vertically movable and rotatably inserted into the holder, has a push button 5 screwed into its upper part, and has a protrusion 6a formed on its intermediate outer periphery; and a protrusion of the second push rod 6. A pin 8 is horizontally movably disposed in two horizontal holes 6b facing each other at 180 degrees and is biased outwardly by a spring 7, and a return mechanism that also acts on the upper end. and two locking members 4.
is locked by the retaining arm of the cover 10, assembled so as to fit with the retaining piece 10a, and is inserted into the rosette 21 which is a constituent member of the outer shell.

Further, the body portion 2 includes a cylindrical case 12 and a case 12.
A hollow cylindrical first part (7) that is vertically movable and inserted into the
The push rod 13 and the gasket 14 inserted between the inner periphery of the case 12 and the first push rod 13 have their upper ends abutted against the protrusion 13a of the first push rod 13 to push the first push rod 13 upward. A biasing return spring 15 and a switch 19 disposed within the first push rod 13
a light source 16 that blinks in response to the operating state of the first push rod 13; a translucent cap 17 fitted onto the inner periphery of the first push rod 13 so as to close the upper opening of the first push rod 13; A packing 18 inserted between the outer periphery and the first push rod 13
It is composed of.

Furthermore, the switch unit 3 is composed of a switch 19, an operating lever for operating the switch 19, and a holder 21 for holding the switch 19, and the upper end of the operating lever is connected to the first
It is attached to the lower part of the body part 2 so as to come into contact with the lower end of the push rod 13.

Note that the locking device section 1 and the body section 2 are such that the locking member 4 of the locking device section 1 shown in FIG.
By engaging with a retaining hole (not shown) provided on the outer periphery of the case 12, the lower end of the second push rod 6 of the locking device section 1 and the upper end of the first push rod 13 of the body section 2 are connected. They are joined so that they abut.

Next, the operation of this embodiment will be explained. When the push button 5 is depressed, the second push rod 6 is pushed down, and the pin 8 disposed in the horizontal hole 6b of the second push rod 6 slides on the inclined surface of the protruding band 4a of the locking member 4 against the spring 7. . When the pin 8 passes over this protrusion band 4a, it moves outward under the bias of the spring 7 and is locked to the lower end of the protrusion band 4a. This state is the locked state of the lock device section 1 shown in FIG.

At this time, the first push rod 13 is also pushed down in conjunction with the second push rod 6 to operate the switch 19 via the operation lever, thereby turning on the light source 16. This mouth.

To release the locked state of the device section 1, the push button 5 may be twisted clockwise. That is, the second
As shown in the figure, the protruding band 4a of the locking member 4 is provided with a notch 4b through which the pin 8 can pass, and when the push button 5 is twisted, the second push rod 6 is rotated. When the pin 8 locked to the lower end of the protruding band 4a of the locking member 4 rotates to the position of the notch 4b, the second push rod 6 is urged upward by the return spring 9, so that the pin 8 is rotated to the position of the notch 4b. It passes through the notch 4b of the locking member 4 and moves upward, and the locked state of the locking device section 1 is released. Since the return spring 9 also acts as a torsion spring, the second push rod 6 rotates counterclockwise, but the protrusion 6a of the second push rod 6 comes into contact with the side end surface of the engagement piece 10a of the cover 10. It stops when it makes contact and returns to the state before locking as shown in FIG.

At this time, the first push rod 13 of the body part 2 is also returned upward by the return spring 15, and furthermore, the operation lever of the switch 3 is also pushed upward by the return force of the switch 19. The push button switch returns to the state before the push button 5 was pressed.

By the way, in the push-button switch according to this embodiment, as shown in FIG. Since the body part 2 is separated from the body part 2 and placed on the upper part of the body part 2 which is fixed by the bolt 23, the assembly becomes easy, and the case 12 of the body part 2 is made into a /J% shape. It can also be attached to the attachment hole 22a. Furthermore, it is also possible to share parts with a cementally operated push button switch. An example thereof will be explained using FIGS. 8 to 10.

That is, from the momentary operation type push button switch 40 fixed to the mounting hole 41a formed in the panel 41 with a nut 42 as shown in FIG.
remains, but a cap 17 shown in FIG.
When the locking device section 1 shown in FIG. 3 is incorporated, the push button switch of the embodiment becomes a pussy rotor type push button switch. In this way, by sharing parts with other pushbutton switches with different operations, parts costs can be reduced through mass production.

〔Effect of the invention〕

As explained above, in the button lock type push button switch according to the present invention, the locking device, which occupies a large space, is integrated as a locking device section, and is arranged above the body section separately from the body section. , the case of the body is downsized, and even if the mounting hole of the panel of the operation panel is small in diameter, it can be mounted on the panel. Furthermore, the mouth.

Since there is no need to assemble the device in the case of the body in a narrow space, assembly is easy and workability can be improved.

Furthermore, since it is possible to share parts with momentary action type push button switches, it is possible to reduce parts costs through mass production and standardize assembly.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view of a main part of a button lock type push button switch according to the present invention, FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1, and FIG. 4 is a vertical sectional view of the cap, FIG. 5 is an operational explanatory diagram showing the locking state of the locking device, FIG. 6 is a longitudinal sectional view of the main part of a conventional push button lock type switch, The figure is a cross-sectional view of the locking device taken along line A-A in Figure 6, Figure 8 is a longitudinal cross-sectional view of the main part of the momentary action type push button switch, and Figure 9 is a cross-sectional view of the main part of the momentary action push button switch.
This figure and FIG. 10 are sectional views of a push button portion and a main body portion of the momentary operation type push button switch shown in FIG. 8, respectively.

Claims (1)

[Scope of Claims] 1) A cylindrical case that is fitted into a hole of a predetermined size formed in a panel, and a cylindrical case that is fitted into the case so as to be movable up and down and is biased upward by a spring, and whose lower end is connected to the lower part of the case. a locking member having a protruding band having a plurality of notches provided on the inner wall; a second push rod that is freely fitted and inserted, has a push button attached to its upper end and whose lower end abuts the upper end of the first push rod, and a plurality of horizontal holes that open outward provided in the second push rod. a pin that is movable in the horizontal direction, is biased outwardly by a spring, and is capable of passing through a notch in the locking member; a torsion spring that biases the push rod upward; and a locking device section provided with a torsion spring that urges the push rod upward, and the locking device section disposed on the upper part of the body section is located on the front surface side of the panel. A push-lock type pushbutton switch.