JP2013118077A - Replacing tool for lamp for illumination type push button - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a replacing tool for a lamp for an illumination type push button that can prevent the push button from being pressed in lamp replacing operation for the illumination type push button with an opening/closing type protection cover.SOLUTION: A replacing tool 10 for a lamp for illumination type button includes a bottom part 11 in a rectangular plate shape and outer and inner press parts 12, 13 in a rectangular plate shape provided vertically to a front and a rear end of the bottom part 11 in the same direction to an upper surface of the bottom part 11. The inner press part 12 is substantially as thick as a main body 21a of a button part 21 of the illumination type push button 20. The replacing tool 10 is mounted on the illumination type push button 20 by being moved from below to above the illumination type push button 20 until an upper surface of the inner press part 13 abuts against a lower surface of the main body 21a with the protection cover 24 closed.

Description

  The present invention relates to a lamp replacement jig for an illumination type push button suitable for use in a lamp replacement operation of an illumination type push button provided with an openable / closable protective cover.

  Various power-operated pushbuttons are used to operate and stop various devices at power companies' power plants. As such light-operated pushbuttons, the state of the device can be seen visually. There are types that use incandescent lamps and LED lamps, and types that have a protective cover that prevents the operator from touching the push buttons inadvertently to operate or stop the device.

  Moreover, as an illumination type pushbutton provided with the protective cover, the type provided with a fixed type protective cover as disclosed in the following Patent Document 1, for example, model number 2C-L1A24B manufactured by Yamatake Corporation -Some types have an openable protective cover such as AC.

An illuminated pushbutton provided with an openable / closable protective cover has a rectangular thin plate-like shape on the front surface of a rectangular plate-like transparent main body 21a, such as an illuminated pushbutton 20 shown in FIGS. A button portion 21 to which a transparent panel 21b (see FIG. 5B) is attached; a substantially rectangular cylindrical base portion 22 having a rear end portion of the button portion 21 fitted and fixed to the front end portion; A lamp holder portion 23 for holding the base portion 22 by holding the upper surface and the lower surface of the base portion 22 with a base holding member attached to the tip of the rod-shaped member, and a protective cover 24 having a transparent guard 24a and a cap 24b. (Refer to the figure (b)).
Here, although not shown, the lamp is attached to a lamp holder fixed to the distal end side of the rod-shaped member of the lamp holder portion 23 so that the light passes through the base portion 22 and irradiates the button portion 21 from the rear surface. It has been. Further, a slide that allows the base holding member to slide in the front-rear direction (the horizontal direction shown in FIGS. 1A to 1D) is provided between the base holding member of the rod-shaped member of the lamp holder 23 and the lamp holder. A member is provided.

  The panel 21b of the button part 21 is made larger than the main body 21a so that the outer peripheral part of the panel 21b protrudes about several mm from the main body 21a.

The cap 24b of the protective cover 24 includes an upper plate portion and both side plate portions, and the front surface, rear surface, and lower surface of the cap 24b are open surfaces.
The guard 24a of the protective cover 24 is composed of a front plate portion and both side plate portions, and the upper end portions of both side plate portions of the guard 24a can be rotated around an axis attached to the upper plate portion of the cap 24b along the lateral direction. Is attached to the cap 24b (see FIG. 3B).
The protective cover 24 is attached to the button portion 21 so as to hold the upper surface and both side surfaces of the panel 21b of the button portion 21 with the inner surfaces of the upper plate portion and both side plate portions of the cap 24b.

  The illumination type push button 20 is attached to the board 1 by forming a rectangular attachment hole in the board 1 and attaching the rectangular cylindrical holder 2 to the board 1 so that the front end surface coincides with the front surface of the attachment hole. After that, the main body 21a of the button portion 21 is normally positioned outside the mounting hole of the panel 1, but when the button portion 21 is pressed, the illuminated push button 20 is placed in the holder 2 so as to retract into the mounting hole of the panel 1. It is done by attaching.

When the operator operates or stops the apparatus, the guard 24a is indicated by a thick arrow in FIG. 3B while grasping the lower end portion of the guard 24a of the protective cover 24 of the illuminated pushbutton 20 and pulling it toward the front. Then, the button 21 is pushed as shown by the white arrow in FIG. As a result, the base holding member and the rod-shaped member of the lamp holder portion 23 are moved leftward as indicated by the thick arrows in FIG.
The button stroke of the illuminated pushbutton 20 is substantially the same as the thickness (for example, 3 mm) of the main body 21a so that the main body 21a does not enter the holder 2 more than necessary when the button portion 21 is pressed. Has been.

In addition, when the operator discovers that the illuminated push button 20 has run out of the lamp, the operator performs lamp replacement work in accordance with procedures 1 to 3 shown below.
(Procedure 1) With the guard 24a closed, the button portion 21 and the protective cover 24 are picked up and down and pulled forward (see the white arrow in FIG. 3 (d)), and when the illuminated push button 20 stops, it rotates 90 °. After that, the illuminated pushbutton 20 is removed from the panel 1 by pulling the button portion 21 and the protective cover 24 toward the front again.
(Procedure 2) Replace the burned lamp with a new lamp.
(Procedure 3) With the guard 24a closed, the button part 21 and the protective cover 24 are picked up and down, and the illuminated pushbutton 20 is pushed into the holder 2 in the reverse procedure to the procedure 1, whereby the illuminated pushbutton 20 is Install on board 1.

  In Patent Document 2 below, when the push button member is moved to the fixed member side so that the lamp can be replaced without removing the lamp cover, the engaging hole of the movable member is engaged with the engaging member. The engagement of the locking member by the engagement hole of the movable member is achieved by moving in the direction of releasing the engagement with the locking portion and moving the lower end of the safety spring in the direction of engagement with the tongue-shaped portion of the locking member. By releasing the locking of the stopper, the lamp cover tries to fall downward, but since the tongue-shaped portion of the locking member is engaged with the safety spring, the lamp cover via the tongue-shaped portion by dropping A lamp cover mounting structure is disclosed in which the cover is caught by a safety spring so as not to fall.

Japanese Patent Laid-Open No. 2002-1000025 Japanese Patent Laid-Open No. 7-085714

However, in the above-described lamp replacement operation of the illuminated pushbutton 20, if the device is stopped by pressing the button portion 21 when removing the illuminated pushbutton 20 from the panel 1, wasteful costs such as filter materials and waste disposal are required. Therefore, the operator works carefully so as not to press the button portion 21, but when a large number of illuminated push buttons 20 are arranged in a matrix and attached to the panel 1, Most of the illuminated pushbuttons 20 can pull the button portion 21 and the protective cover 24 toward the front without much effort by the operator. However, for example, the sliding member of the lamp holder portion 23 seems to be fixed. In some cases, the button 21 and the protective cover 24 cannot be pulled forward unless the operator puts effort.
Such an illuminated pushbutton 20 is rare, but when the operator first pulls the button portion 21 and the protective cover 24 forward, the guard portion 24a of the protective cover 20 is unconsciously slightly opened to slightly open the button portion 21. There is a problem that the button 21 may be pushed by sliding a finger between the panel 21b and the guard 24a.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an illumination type push button lamp replacement jig capable of preventing the push button from being pushed during lamp replacement work of the illumination type push button provided with an openable / closable protective cover. .

The illumination type push button lamp changing jig of the present invention is an illumination type push button lamp changing jig (used for exchanging the lamp of the illumination type push button (20) provided with an openable / closable protective cover (24)). 10), wherein the protective cover includes a cap (24b) whose lower surface is an open surface, and a guard (24a) whose upper end portion is rotatably attached to the cap. And a body (21a) of the button portion (21) which is normally positioned outside the mounting hole of the illuminated pushbutton formed on the panel (1), and the lamp replacement jig for the illuminated pushbutton is provided. A rectangular plate-shaped bottom portion (11), and rectangular plate-shaped outer and inner restraining portions (12, 13) provided at the front and rear ends of the bottom portion in the same direction and perpendicular to the top surface of the bottom portion, respectively. And the thickness of the inner holding portion is determined by the button portion. The thickness of the main body is substantially the same as the thickness of the main body. When the illumination type push button lamp replacement jig closes the protective cover, the upper surface of the inner holding portion contacts the lower surface of the main body of the button portion. The illuminated push button is moved upward from below until it comes into contact with the illuminated push button, and is attached to the illuminated push button.
Here, the button part of the illumination type push button further includes a panel (21b) larger than the main body, and the rear part of the illumination type push button lamp replacement jig is configured to When the illumination type push button lamp replacement jig is attached to the illumination type push button, the rear surface of the outer pressing portion is in contact with the lower end side of the front surface of the guard of the protective cover. The front surface of the inner holding portion may be in contact with the lower end portion of the rear surface of the panel of the button portion.

The illuminated pushbutton lamp replacement jig of the present invention has the following effects.
(1) It is possible to prevent the push button (button part) from being pushed during the lamp replacement work of the illumination type push button provided with the openable protection cover.
(2) It is possible to prevent unnecessary operation and stop of the apparatus accompanying the lamp replacement work.
(3) It is possible to prevent the occurrence of various expenses associated with unnecessary apparatus stoppage.
(4) Even an unfamiliar operator can perform lamp replacement work with peace of mind.
(5) Since the lamp replacement work can be performed in a timely manner, the operating state of the apparatus can be displayed appropriately.

It is a figure which shows the structure of the illumination type pushbutton lamp | ramp exchange jig 10 by one Example of this invention. It is a figure for demonstrating the procedure of the lamp | ramp replacement | work operation | work of the illumination type pushbutton 20 using the lamp | ramp replacement jig 10 for the illumination type pushbutton shown in FIG. It is a figure for demonstrating the structure of the illumination type pushbutton 20 provided with the conventional opening-closing-type protective cover, and the procedure of a lamp replacement | exchange operation | work.

  For the above-mentioned purpose, for an illuminated pushbutton comprising a rectangular plate-shaped bottom portion and rectangular plate-shaped outer and inner restraining portions provided at the front and rear ends of the bottom portion in the same direction and perpendicular to the upper surface of the bottom portion. This was realized by using a lamp replacement jig.

Embodiments of the illumination type push button lamp replacement jig of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, an illuminated pushbutton lamp replacement jig 10 (hereinafter referred to as “lamp replacement jig 10”) according to an embodiment of the present invention has a generally U-shape upward in a side view. Has a shape.
That is, the lamp replacement jig 10 includes a rectangular plate-shaped bottom portion 11, and rectangular plate-shaped outer and inner holding portions 12, which are provided at the front and rear ends of the bottom portion 11 in the same direction perpendicular to the upper surface of the bottom portion 11, respectively. 13.

  Here, the outer and inner holding parts 12 and 13 are provided integrally with the bottom part 11, and the width (lateral length) of the bottom part 11, the outer holding part 12 and the inner holding part 13 is the panel of the button part 21. The width of the bottom portion 11, the outer holding portion 12, and the inner holding portion 13 is substantially the same as the thickness (for example, 3 mm) of the main body 21 a of the button portion 21.

  As shown by the white arrow in FIG. 2A, the inner holding portion 13 moves the lamp replacement jig 10 from below to the illuminated pushbutton 20 until the upper surface of the bottom portion 11 abuts the lower surface of the guard 24 a of the protective cover 24. When attached, the upper surface of the inner holding portion 13 is set to a height that abuts against the lower surface of the main body 21 a of the button portion 21.

  The length from the rear surface of the outer pressing portion 12 (the surface on the inner pressing portion 13 side) to the front surface of the inner pressing portion 13 (the surface on the outer pressing portion 12 side) is attached to the illumination pushbutton 20 with the lamp replacement jig 10. In this case, the length of the rear surface of the outer restraining portion 12 is in contact with the lower end portion of the front surface of the guard 24a of the protective cover 24 and the front surface of the inner restraining portion 13 is in contact with the lower end portion of the rear surface of the panel 21b of the button portion 21. Has been.

  The height (length in the vertical direction) of the outer pressing portion 12 is set larger than the height of the inner pressing portion 13.

  Next, a procedure for performing the lamp replacement operation of the illuminated pushbutton 20 shown in FIG. 3 using the lamp replacement jig 10 will be described with reference to FIGS. 2 (a) and 2 (b).

  As shown in FIG. 2A, the operator confirms that the guard 24 a of the protective cover 20 is closed, and then touches the rear surface of the inner restraining portion 13 of the lamp replacement jig 10 against the front surface of the panel 1. The lower side of the illumination type push button 20 until the upper surface of the bottom portion 11 of the lamp changing jig 10 contacts the lower surface of the guard 24a of the protective cover 24 and the upper surface of the inner holding portion 13 contacts the lower surface of the main body 21a of the button portion 21. The lamp replacement jig 10 is mounted on the illuminated pushbutton 20 by moving the lamp replacement jig 10 from the top to the top (see the white arrow in the figure).

Subsequently, the operator puts his / her middle finger on the upper surface of the protective cover 24 and puts his / her thumb on the lower surface of the bottom portion 11 of the lamp replacement jig 10 and grips the protective cover 24 and the lamp replacement jig 10 with one hand. Pull it forward (see the white arrow in FIG. 2B), rotate the illuminated pushbutton 20 90 °, and then pull the button portion 21 and the protective cover 24 forward again to bring it back to the illuminated pushbutton. 20 is removed from the board 1.
At this time, the rear surface of the outer holding portion 12 of the lamp replacement jig 10 contacts the lower end portion of the front surface of the guard 24a of the protective cover 24, and the front surface of the inner holding portion 13 is the main body 21a on the rear surface of the panel 21b of the button portion 21. For example, when the sliding member of the lamp holder portion 23 is stuck, the operator first puts force when pulling the button portion 21 and the protective cover 24 forward. However, the guard 24a of the protective cover 24 can be prevented from opening.
In addition, the operator can pull the button portion 21 and the protective cover 24 forward by bringing the thumb widely into contact with the lower surface of the bottom portion 11 of the lamp replacement jig 10, so that compared with a case where the lamp replacement jig 10 is not used. Thus, the button part 21 and the protective cover 24 can be pulled forward without applying any force.

  Subsequently, the operator replaces the lamp with the illuminated pushbutton 20 cut out with a new lamp.

Subsequently, the operator attaches the illuminated push button 20 to the panel 1 by pushing the illuminated push button 20 into the holder 2 in the reverse procedure of removing the illuminated push button 20 from the panel 1.
At this time, the operator keeps the lamp replacement jig 10 attached to the illuminated pushbutton 20 and places the middle finger on the upper surface of the protective cover 24 and the thumb on the lower surface of the bottom 11 of the lamp replacement jig 10. Then, the protective cover 24 and the lamp replacement jig 10 may be picked with one hand and the illuminated push button 20 may be pushed into the holder 2, or the lamp replacement jig 10 may be removed from the illuminated push button 20 and the protective cover 24 is removed. The illuminated push button 20 may be pushed into the holder 2 by picking from above and below.

1 Panel 2 Holder 10 Lamp replacement jig 11 Bottom 12, 13 Outer and inner holding part 20 Illuminated push button 21 Button part 21a Main body 21b Panel 22 Base part 23 Lamp holder part 24 Protective cover 24a Guard 24b Cap

Claims (2)

A lamp replacement jig (10) for an illuminated pushbutton used for replacing a lamp of an illuminated pushbutton (20) provided with an openable / closable protective cover (24),
The protective cover includes a cap (24b) whose lower surface is an open surface, and a guard (24a) whose upper end is rotatably attached to the cap.
The illuminated pushbutton includes a body (21a) of a button portion (21) that is normally located outside the mounting hole of the illuminated pushbutton formed in the panel (1),
The illuminated pushbutton lamp replacement jig includes a rectangular plate-shaped bottom portion (11), a rectangular plate-shaped outer side provided at the front and rear ends of the bottom portion and perpendicular to the top surface of the bottom portion, respectively. An inner holding portion (12, 13),
The thickness of the inner restraining portion is substantially the same as the thickness of the main body of the button portion,
With the illumination type push button lamp replacement jig closed from the lower side of the illumination type push button until the upper surface of the inner holding portion abuts against the lower surface of the main body of the button portion with the protective cover closed. Attached to the illuminated pushbutton.
A lamp replacement jig for illuminated pushbuttons, characterized in that The button part of the illuminated push button further includes a panel (21b) larger than the main body,
When the illumination pushbutton lamp replacement jig is attached to the illumination type pushbutton, the length from the rear surface of the outer side restraint portion to the front surface of the inner side restraint portion of the lamp switch jig for the illumination type pushbutton In addition, the rear surface of the outer restraining portion is in contact with the lower end portion of the front surface of the guard of the protective cover, and the front surface of the inner restraining portion is in contact with the lower end portion of the rear surface of the panel of the button portion. ing,
The lamp replacement jig for an illuminated pushbutton according to claim 1, wherein:

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