CN103001126B - Erecting of panel control appliance - Google Patents

Abstract

The present invention relates to panel mounted control devices. An object of the present invention is to provide a panel-mounted control device in which one person can perform installation work of the control device on the mounting panel. In the panel-mounted control device of the present invention, a flange portion and a cylindrical waist portion with threads formed on the outer periphery are provided on the back side of the control device body, and the waist portion of the control device body is inserted from the front side of the mounting panel into the flange formed on the front side of the mounting panel. In the installation hole of the panel, screw the fastening nut into the thread formed on the waist of the control device main body from the back side of the above-mentioned installation panel, and fasten the above-mentioned control device main body to the above-mentioned installation panel. A plurality of microscopic protrusions protruding from the outer periphery of the waist portion to be larger than the inner diameter of the mounting hole of the mounting panel is provided at approximately equal intervals.

Description

Panel Mount Control Devices

technical field

The present invention relates to panel-mounted control devices such as pushbutton switches and displays mounted on various panels such as switchboards and control panels.

Background technique

A device shown in Patent Document 1 is known as a panel-mounted control device used for mounting on a panel such as a switchboard or a control panel.

FIG. 6 shows a conventional example of a panel-mounted push button switch as one of such control devices. The panel mount push button switch includes a push button switch main body 10 for insertion into a mounting hole 21 of a panel 20 for installation. The button switch main body 10 includes: a button 11 for operation, a cylindrical waist 13 with a flange 12 provided at the base end of the button 11, and a screw formed on the outer periphery of the waist 13. Fastening nut 15 for thread 14 . A detachable switch unit operated by the button 11 is connected to the front end of the waist 13 of the button switch main body 10 to form a button switch. Here, for the sake of simplicity, illustration of the switch unit is omitted.

When installing the push button switch on the panel 20 of the switchboard or control panel, remove the fastening nut 15 from the waist 13 of the push button switch main body 10, and insert the waist 13 into the mounting hole 21 provided on the panel 20 from the surface side of the panel 20. . Then, from the back side of the panel 20, the fastening nut 15 is fitted into the waist 13 of the push button switch main body 10 inserted into the panel 20, screwed into the thread 14 on the outer periphery of the waist 13, and as shown in FIG. The nut 15 and the flange portion 12 of the waist portion 13 are fastened between the panel 20 and the push button switch main body 10 is fixedly attached to the panel 20 . After mounting the push button switch main body 10 on the panel 20 in this way, a switch unit (not shown) is coupled to the front end of the waist portion 13 .

prior art literature

patent documents

[Patent Document 1] Japanese Patent Application Laid-Open No. 2008-108537

Contents of the invention

The problem to be solved by the invention

In such a panel-mounted control device such as a push button switch used for mounting on a panel, since the cylindrical waist of the control device body is inserted into the mounting hole of the panel, its outer diameter is formed smaller than the inner diameter of the mounting hole.

Therefore, in order to mount such a panel-mounted control device on a panel of a switchboard or a control panel, the control device body cannot be stably supported by the panel only by inserting the control device main body into the mounting hole of the panel. In particular, in the panel of a large switchboard, it is impossible to turn the hand from the panel surface to the back, so it is impossible to perform control by one person inserting the control device body from the panel surface into the mounting hole while supporting the insertion into the mounting hole with one hand. For the main body of the equipment, it is necessary to remove the support of the human hand while tightening the fastening nut from the back side of the panel. Therefore, the support of the control device main body inserted into the panel becomes unstable, and there is a possibility that the control device main body falls off from the panel due to slight vibration or contact. In order to eliminate this inconvenience, two persons must perform the installation work, which is inconvenient in that manpower is required.

An object of the present invention is to provide a panel-mounted control device that eliminates such a problem and can be mounted by one person.

method used to solve the problem

In order to solve the above-mentioned problems, the present invention proposes a panel-mounted control device in which a flange portion and a cylindrical waist portion with threads formed on the outer circumference are provided on the back side of the control device body, and the waist portion of the control device body is separated from the mounting panel. The surface side is inserted into the mounting hole formed in the panel, and the fastening nut is screwed into the screw thread formed in the waist of the control device main body from the back side of the above-mentioned mounting panel, and the control device main body is fastened to the above-mentioned mounting panel, and the panel The installation control equipment is characterized by:

A plurality of microscopic protrusions protruding from the outer periphery of the waist to be larger than the inner diameter of the mounting hole of the mounting panel are provided at substantially equal intervals on the outer periphery of the waist of the control device main body.

In the present invention, the above-mentioned protrusion is a tiny protrusion with a small width, and protrudes parallel to a diameter line of the waist of the above-mentioned operation part main body. The front side of the front end face is receded toward the rear end face side. Furthermore, the inclined surface may be provided with an inclination that recedes from the front end surface side of the protrusion toward the rear end surface side from one end of the front end surface toward the other side end.

In addition, as the shape of the protrusion, such as a conical shape or a pyramidal shape, a shape in which the upper end is formed to be thinner may be used.

Invention effect

In the present invention, since the outer circumference of the waist of the main body of the panel-mounted control device inserted into the mounting hole of the mounting panel is provided with a plurality of microscopic protrusions, the microprotrusions protrude larger than the inner diameter of the mounting hole, so when mounted on the panel, When the waist of the control device main body is inserted into the mounting hole of the panel, the protrusion of the waist is elastically or plastically deformed by the mounting hole of the panel, and is pressed until its top end is pressed against the inner peripheral wall of the mounting hole of the panel. By crimping the inner wall of the mounting hole with the tip of the protrusion, the control device main body inserted into the mounting hole of the mounting panel is locked to the mounting panel and temporarily fixed. Therefore, the main body of the control device can be stably supported by the installation panel without external support, and will not fall off from the installation panel even if it is subjected to vibration or impact to some extent. Therefore, one operator can perform panel installation of the control device.

Description of drawings

Fig. 1 is an exploded perspective view showing the configuration of a push button switch according to an embodiment of the present invention.

Fig. 2 is an enlarged perspective view showing minute protrusions of the push button switch according to the embodiment of the present invention.

Fig. 3 shows the main body of the operating part of the push button switch according to the embodiment of the present invention, wherein (a) is a plan view, (b) is a cross-sectional view along line b-b in (a), and (c) is an enlarged view of (b) Sectional view of part c.

Fig. 4 is a plan view showing a panel-mounted state of the push button switch according to the embodiment of the present invention.

Fig. 5 shows a modified example of the shape of the protrusion provided in the control device of the present invention.

Fig. 6 is an exploded perspective view showing the configuration of a conventional control device.

Fig. 7 is a plan view showing a panel-mounted state of a conventional control device.

Symbol Description:

10 - The main body of the operation part of the push button switch (the main body of the control device)

11 - Button

12 - Flange

13 - Cylindrical waist

14 - Thread

15 - fastening nut

16 (a-d) - tiny protrusions

20-Mounting panel

21 - Mounting hole

detailed description

Embodiments of the present invention are described with reference to the illustrated embodiments. In the following embodiments, although various limitations are made to the constituent elements, types, combinations, positions, shapes, quantities, relative arrangements, etc., these are merely examples. The invention is not limited thereto.

【Example 1】

Fig. 1 shows an embodiment of the present invention. In FIG. 1 , reference numeral 10 is an operating portion main body of a push button switch which is one of control devices. The operation part main body 10 of this push button switch is configured to be able to be mounted on a panel 20 such as a switchboard, and the operation part main body 10 includes a button 11 for operation, a flange part 12 supporting the button 11, and a ring provided continuously with the flange part 12. Cylindrical waist 13 .

A thread 14 for screwing a fastening nut 15 is formed on the flange portion 12 side of the outer periphery of the waist portion 13 . Further, in the portion of the screw thread 14 adjacent to the flange portion 12 , a minute protrusion 16 is provided in a notched concave portion 14 a formed by cutting off a part of the screw thread (see FIG. 2 ).

As shown in detail in FIG. 3 , four protrusions 16 ( 16 a to 16 d ) are provided at substantially equal intervals (90° intervals) on the outer periphery of the cylindrical waist portion 13 . In this embodiment, as shown in FIG. 3( b ), the protrusion 16 protrudes from the outer periphery of the cylindrical waist 13 in parallel with its (waist 13 ) vertical diameter line V, forming a shape as shown in FIG. 5( a ). show that shape.

That is, the thickness t of the protrusion 16 in the circumferential direction of the waist portion 13 is thin, and the width w and height h in the axial direction of the waist portion 13 are much longer than the thickness t. In addition, an inclined surface S is provided on the front end surface F of the protrusion 16 facing the panel 20 . The inclined surface S has an inclination in two directions, that is, from the lower end D side to the upper end U side, retreating from the front end face F side to the rear end face B side, and from the left end L side to the right end R side, from the front end face F side. Step back toward the B side of the rear end. Since the thickness t of the protrusion 16 formed in this way is thin in the circumferential direction, it has a shape that is easily deformed along the circumferential direction. In addition, by providing the inclined surface S on the front end face F, when the waist 13 of the operation part body of the push button switch is inserted into the installation hole 21 of the panel 20, the inner peripheral wall of the installation hole 21 slides on the inclined surface S, and the protrusion 16 Since force is applied to deform in the circumferential direction, that is, in the direction of arrow C shown in FIG. 5( a ), the protrusion 16 bends and deforms in this direction.

The shape of this protrusion is suitable for the protrusions 16a and 16c of FIG. Like the protrusions 16a and 16c, the inclination in the direction of both left and right ends is retreated from the left end L to the right end R. As shown in FIG.

Furthermore, the protrusions 16 may protrude radially from the outer periphery of the waist portion 13, and in this case, the above-mentioned inclined surface S may be provided on the front end surface of the protrusions.

When installing the operation part main body 10 of the push button switch on the panel 20, insert the waist portion 13 of the main body into the mounting hole 21 provided on it (panel 20) from the surface side of the panel 20, and screw the fastening nut 15 into it. The waist portion 13 protruding toward the rear side of the panel 20 is clamped and fixed to the panel 20 by the fastening nut 15 and the flange portion 12 of the main body 10 (see FIG. 4 ). A panel-mounted pushbutton switch is completed by coupling a detachably configured switch unit (not shown) to the front end side of the waist portion 13 of the pushbutton switch operation unit body mounted on the panel 20 .

In this way, in order to install the operation part main body 10 of the push button switch on the panel 20, as shown in FIG. Through the installation hole 21 provided on the panel 20 .

And, when the button switch main body 10 is installed on the panel 20, when it is inserted into the installation hole 21 of the panel 20, when the support of the human hand is separated from the main body 10, the protrusion 16 provided on the waist 13 is used to temporarily fix it (the main body 10) in the mounting hole 21 so that it (the main body 10 ) does not come off from the panel 20 .

Therefore, the outer diameter D16 between the protrusions 16a, 16c and 16b, 16d of the waist portion 13 is formed slightly larger than the inner diameter D21 of the mounting hole 21 of the panel 20, and the tip of the protrusion protrudes from the inner diameter of the mounting hole 21 to the outer side.

In order to install the operation part main body 10 of the push button switch configured in this way on the panel 20, as shown in FIG. The flange portion 12 is in contact, but before that, the projection 16 protruding from the waist portion 13 collides with the surface of the panel 20 , and the pressing resistance becomes large there. In order to completely press the main body 10 into the mounting hole 21 of the panel 20, the upper end portion of the protrusion 16 is pressed by the inner peripheral wall of the mounting hole 21 of the panel 20 by further pressing into the main body 10 from there against the resistance caused by the protrusion 16. Elastic deformation, or plastic deformation caused by crushing, thereby pressing into the installation hole 21 to push the inner peripheral wall surface, so that the main body 10 can be stuck in the installation hole 21 of the panel 20 and temporarily fixed.

In this way, when the operation part main body 10 of the push button switch is temporarily fixed on the installation hole 21 of the panel 20 by the protrusion 16, even if the support of the human hand breaks away from the main body 10, the main body 10 will not fall off from the panel 20. Therefore, even if the hand cannot turn to the panel For the mounting panel of a large switchboard like the one on the back side, one operator can easily perform the operation of screwing the fastening nut 15 into the waist portion 13 of the main body 10 from the back side of the panel 20 .

In the present invention, on the outer circumference of the cylindrical waist of the operation part main body 10 inserted into the installation hole 21 of the installation panel 20, a tiny protrusion 16 with an outer diameter slightly larger than the inner diameter of the installation hole is provided. When the operation part main body 10 is inserted into the panel 20 for installation When the hole 21 is pressed into it, the upper end of the protrusion 16 is deformed and pressed into the installation hole 21 of the panel 20, enters the installation hole 21, and the upper end of the protrusion 16 is pressed into the inner peripheral wall of the installation hole 21, thereby The operation unit main body 10 is locked to the panel 20 for temporary fixation. Therefore, in order to easily press the operation unit main body 10 into the mounting hole 21 , the tiny protrusions 16 provided on the outer periphery of the waist 13 can be easily deformed.

FIG. 5 shows a modified example of the shape of the protrusion 16 . The protrusion 16 shown in FIG. 5( a ) is thinly formed with a thickness t in the circumferential direction C of the waist portion 13 with respect to the axial width w of the waist portion 13 and the height h in the radial direction of the waist portion 13 , and is easily directed toward the circumferential direction of the waist portion 13 . C bending deformation. When the outer periphery of the waist 13 of the operation part main body 10 of the push button switch is provided with such a shape of the protrusion 16, the waist 13 of the main body 10 is inserted into the installation hole 21 of the installation panel 20, so that the front end of the protrusion 16 is installed. When the inner peripheral wall of the hole 21 is pushed, the waist portion 13 bends and deforms in the circumferential direction C, and easily enters the installation hole 21 .

In addition, in the case of the projection 16 in FIG. 5( a), if the front end surface F of the projection 16 is provided with an inclined surface S that recedes from the lower end D to the upper end U toward the rear end surface side, when the operation portion of the push button switch When the waist portion 13 of the main body 10 is inserted into the installation hole 21 of the panel 20, the inclined surface L of the protrusion 16 is guided by the peripheral wall (circumferential wall surface) of the installation hole 21, and the center positions of the waist portion 13 and the installation hole 21 are automatically aligned.

And, when the operation part main body 10 of the push button switch is inserted and pressed into the installation hole 21 of the panel 20, the inclined surface S provided on the protrusion 16 goes from the left end L side to the right end R side of the inclined surface. Another inclination in which the side of the rear end surface B recedes makes the inner peripheral wall of the mounting hole 21 apply a force to deform the protrusion 16 in the circumferential direction, and plays a role in making the protrusion 16 bend and deform like the protrusion 16 ′ indicated by the dotted line in FIG. 3( c ). .

In the protrusion 16 shown in FIG. 5( b ), the axial width w of the waist 13 is formed thinly with respect to the height h in the radial direction of the waist 13 and the thickness t in the circumferential direction C of the waist 13 . Bending to A. When the protrusion of this shape is provided, by inserting and pressing the waist 13 of the main body 10 into the installation hole 21 of the installation panel 20, when the top end of the protrusion 16 is pushed by the peripheral wall (circumferential wall surface) of the installation hole 21, the waist will 13 bends and deforms toward the axial direction A, and is easy to enter into the installation hole 21.

Next, the protrusion 16 shown in FIG. 5( c ) has a hemispherical shape, and the upper end of the protrusion is tapered. In addition, the protrusion 16 shown in FIG. 5( d ) has a pyramidal or conical shape, and is formed such that the upper end of the protrusion becomes thinner.

As shown in Figure 5(c) and (d), if the upper end of the protrusion 16 becomes thinner, the mechanical rigidity and strength of the upper end of the protrusion 16 will become weaker. When reaching the installation hole 21 of the installation panel 20, the top end of the protrusion 16 is pushed by the surrounding wall of the installation hole 21 of the installation panel 20, and is easily deformed or collapsed, so the upper end of the protrusion 16 can be easily pressed into the installation panel 20 in the mounting hole 21.

In the above description, an embodiment in which the present invention is applied to a panel-mounted push button switch has been described, but the present invention can also be applied to other panel-mounted control devices such as a panel-mounted display.

The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to the above-described embodiments. Various changes can be made within the scope of the technical thought of the present invention, and they all belong to the protection scope of the present invention.

Claims (4)

1. A panel-mounted control device, which is provided with a flange portion and a cylindrical waist with threads formed on the outer circumference on the back side of the control device main body, and inserts the waist of the control device main body from the front side of the installation panel into the formed part. In the installation hole of the panel, screw the fastening nut into the thread formed on the waist of the control device main body from the back side of the installation panel, and fasten the control device main body to the installation panel, and the panel is installed The control device is characterized by: A plurality of microscopic protrusions protruding from the outer periphery of the waist to be larger than the inner diameter of the installation hole of the installation panel are provided at substantially equal intervals on the outer periphery of the waist of the control device main body, The micro-protrusions are formed to have a width in the circumferential direction of the waist of the control device main body smaller than an axial width of the waist of the control device main body, and protrude parallel to one diameter line of the waist. 2. The panel mount control device of claim 1, wherein: The minute protrusions are formed in a conical shape or a pyramidal shape, and the front end portion is formed thin. 3. The panel mount control device of claim 1, wherein: The front end surface of the protrusion provided on the waist of the control device body is provided with an inclined surface that recedes from the lower end to the upper end of the front end surface from the front end side of the protrusion to the rear end side. 4. The panel mount control device of claim 3, wherein: The inclined surface provided on the front end surface of the protrusion is also provided with an inclination that recedes from the front end surface side of the protrusion surface to the rear end surface side from one end of the front end surface to the other side end. The waist of the main body of the control device.