JP3262205B2 - Panel instrument - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel instrument such as a temperature controller and a temperature indicator, and more particularly to a panel instrument suitable for miniaturization.

[0002]

2. Description of the Related Art Conventionally, there is a case where wiring work or the like is performed on the back of a panel with a panel instrument attached to the panel.
It is necessary to cover for safety measures so that the terminal of the panel instrument is not accidentally touched. The configuration of such a panel instrument is shown in FIG. In the figure, reference numeral 1 denotes a panel instrument, and a plurality of terminals are provided on a rear end face. Reference numeral 2 denotes a terminal cover, which is composed of a plate that covers the rear end face of the panel instrument 1, and is fixed to the rear end face of the panel instrument 1 with a screw 2a.

[0003]

In recent years, with the advance of technology, a large panel instrument can be downsized. However, the size of the terminals provided on the case of the panel instrument is constant, and the number of terminals provided on the case is limited by the area of the rear end face of the case. For this reason, if the terminal cover is attached to the rear end face with screws, the space for installing the terminals is reduced, and even if an attempt is made to reduce the size of a large panel instrument, the number of terminals required for a large panel instrument cannot be provided. It becomes a hindrance factor for miniaturization of the device.

It is an object of the present invention to provide a panel instrument which can be provided with a terminal cover and which can be downsized.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a case having a terminal provided on a rear end face thereof, and a projection and a panel provided at the top and bottom or left and right of the case and projecting toward the case and having a space between the case and the panel . A fixing member having a screw for pressing the case to fix the case, a first plate covering the terminal, and a second plate provided at both ends of the first plate and having holes into which the protrusions are inserted; And a terminal cover formed in a U-shape by the second plate and the second plate, and utilizing a restoring force that operates in a direction in which the first plate and the second plate form a plane.
Then , the terminal cover is fixed.

According to the present invention, the projection of the fixing member is inserted into the hole of the second plate, the terminal cover operates in a direction in which the first plate and the second plate form a plane, and the terminal cover is attached to the case. Fixed to.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 and 2 are configuration diagrams showing an embodiment of the present invention. 1 is a side view, and FIG. 2 is a front view. Here, the illustration of the panel is omitted in FIG. In the figure, reference numeral 10 denotes a case, and a terminal 11 is provided on a rear end surface. Reference numeral 20 denotes a panel to which the case 10 is attached.

Reference numerals 30 and 40 denote fixing members having hook portions 31 and 41, projecting portions 32 and 42, and screws 33 and 43, respectively. The hooks 31 and 41 are inserted into holes (not shown) provided on the upper side and the lower side of the case 10, respectively. The protruding portions 32 and 42 protrude toward the case 10 and have a space between the protruding portions 32 and 42 and the case 10. The screws 33 and 43 are pressed against the panel 20 to fix the case 10 to the panel 20 by sandwiching the panel 20 together with the flange of the case 10. Reference numeral 50 denotes a terminal cover formed of polypropylene.
It consists of plates 52 and 53 and covers the terminal 11.

Next, the structure of the terminal cover 50 will be described with reference to FIG. (A) is a side view, (b) is a plan view. The first plate 51 is a plate larger than the rear end surface of the case 10 (FIG. 1) and covers the terminals 11 (FIG. 1). The second plates 52 and 53 are provided at both ends of the first plate 51 so as to be bent in a U-shape by grooves 520 and 530, and have holes 521 and 531 into which the projections 32 and 42 (FIG. 1) are inserted.

The operation of such a device will be described below.
FIG. 4 is an explanatory view of the assembling operation of the apparatus of FIGS. Here, illustration of the panel is omitted. With the case 10 fixed to the panel, the second plates 52, 53 are inserted into the grooves 520, 530.
To form a U-shape together with the first plate 51. Then, the holes 521 and 531 are inserted into the projections 32 and 42.
Since the terminal cover 50 is formed of polypropylene, the terminal cover 50 is fixed to the panel instrument using a restoring force that operates in a direction in which the first plate 51, the second plates 52, and 53 form a plane. Then, when removing the terminal cover 50, the second plates 52, 53 are pressed from above and below, and the holes 521, 531 are removed from the projections 32, 42.

As described above, since it is not necessary to provide a space for attaching a screw to the rear end face of the case 10, terminals can be provided to the maximum extent on the rear end face. That is, the panel instrument can be reduced in size. Also, since no screws are required, there is no risk of screws being dropped and lost, and the screws can be easily removed.

Although the present invention has been described with reference to the configuration in which the fixing members 30 and 40 are provided above and below the case 10, a configuration in which the fixing members 30 and 40 are provided on the left and right may be used.

[0013]

According to the present invention, the following effects can be obtained. Since there is no need to provide a space for attaching a screw to the rear end surface of the case, the terminals can be provided to the maximum extent on the rear end surface. That is, the panel instrument can be reduced in size. Also, since no screws are required, there is no risk of screws being dropped and lost, and the screws can be easily removed.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a front view showing an embodiment of the present invention.

FIG. 3 is a diagram showing a configuration of a terminal cover 50.

FIG. 4 is an explanatory view of an assembling operation of the apparatus shown in FIGS.

FIG. 5 is a diagram showing a configuration of a conventional panel instrument.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Case 11 Terminal 20 Panel 30 and 40 Fixing member 32 and 42 Projecting part 33 and 43 Screw 50 Terminal cover 51 1st board 52 and 53 2nd board 521 and 531 hole

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 61-70727 (JP, U) JP-A 5-87524 (JP, U) JP-A 60-150418 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) G01D 11/30 G01D 11/24

Claims (1)

(57) [Claims] And 1. A case where the terminal on the rear end surface is provided, arranged vertically or horizontally in this case, the case against <br/> push protrusions a panel having a space between the protruding casing direction Case A first member that covers the terminals, and a second plate that is provided at both ends of the first plate and that has holes into which the protrusions are inserted.
A terminal cover formed in a U-shape by a plate and a second plate, wherein the terminal cover is formed by utilizing a restoring force that operates in a direction in which the first plate and the second plate form a plane. Panel instrument characterized by being fixed.