JPH11313412A - Operation panel cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the manufacturing cost of an operation panel covering the front of a large-size operation panel, such as a switchboard, a control board, etc., whose size varies. SOLUTION: A rectangular frame 10 made of synthetic resin is composed of vertically long vertical frame members 11 and 11 and horizontally long horizontal frame members 15 and 15. The vertical frame members 11 and 11 have lengths, in common with operation panels of a plurality of sizes and the horizontal frame members 15 having lengths corresponding to the operation panels of a plurality of sizes. Linkage plate parts 16 and 16 are provided, protruding from both the ends of the respective horizontal frame members 15 and 15 in the vertical direction in L-shapes. The linkage plate parts 16 and 16 are fixed to the rear sides of he vertical frame members 11 and 11 for assembling the vertical frame members 11 and 11 and the horizontal frame members 15 and 15. With this constitution, a number of types of large-size operation panel covers can be manufactured with a relatively small-size mold at low cost, and furthermore high rigidity which is obtainable with the one-piece molding can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation panel cover for covering a front surface of an operation panel such as a switchboard or a control panel.

[0002]

2. Description of the Related Art An operation panel cover for covering the front of an operation panel such as a switchboard or a control panel has conventionally been manufactured by assembling a rectangular frame made of synthetic resin and a flat front plate made of synthetic resin. The frame was integrally formed by injection molding.

[0003]

The operation panels such as a switchboard and a control panel are relatively large, and various sizes (widths) are used due to differences in operation buttons, display lamps and the like. Have been. Therefore, in order to manufacture various kinds of large-sized operation panel covers, various large-sized dies are required, and there has been a problem that the production cost is increased.

The present invention has been made in view of the above problems, and has as its object to reduce the manufacturing cost of large operation panel covers of various sizes.

[0005]

According to the present invention, a rectangular frame made of a synthetic resin and a flat front plate made of a synthetic resin are assembled to produce a front panel of an operation panel such as a switchboard or a control panel. In the operation panel cover, the frame is manufactured by assembling a vertically long vertical frame member and a horizontally long horizontal frame member which are separately formed, and the vertical frame member has a common length for the operation panel of a plurality of sizes. The horizontal frame member is formed in a length corresponding to the operation panel of each size.

[0006] At both ends of the horizontal frame member, connecting plate portions protruding vertically in an L-shape are provided, and the horizontal frame member has the connecting plate portion fixed to the rear side of the vertical frame member. Is preferred.

[0007]

FIG. 1 is a front view of an operation panel cover according to an embodiment of the present invention, FIG. 2 is a rear view thereof, and FIG. 3 is a line AA in FIG. FIG. The operation panel cover covers a front surface of an operation panel such as a power distribution panel or a control panel, and is fixed to the rack 1 on the main body side of the operation panel by fixing pins 3 and 3 having a screw at a tip. This operation panel is manufactured by assembling a rectangular frame-shaped frame 10 and a flat front plate 20, and the frame 10 is composed of a separately formed vertical frame member 1.
1 and 11 and horizontal frame members 15 and 15.

FIG. 4 is a rear view of the vertical frame member 11, and FIG. 5 is a cross-sectional view taken along line BB in FIG. The vertical frame member 11 is made of synthetic resin and is integrally formed by injection molding, and is formed to be vertically long with a common vertical length (height) for operation panels of a plurality of sizes. On the back side of the vertical frame member 11, connection recesses 12 corresponding to the connection plate portions 16 (described later) are provided at both upper and lower ends, and connection screws 18, 18 ( (Described later) are provided.

A fixing hole 13 through which the fixing pin 3 is inserted is provided in the center of the outer edge portion (the outer peripheral side when assembled into a frame) of the vertical frame member 11. On the back side of the outer edge portion, a number of reinforcing ribs and the like are provided, and the vertical frame member 11 is relatively (horizontal frame member 15).
(Compared to). On the back side of the inner edge portion of the vertical frame member 11, a plurality of locking projections 19 for locking the front plate 20 are provided at predetermined intervals in the vertical direction.

FIG. 6 is a rear view of the horizontal frame member, and FIG.
Is a plan view of the same. The horizontal frame member 15 is made of synthetic resin and is integrally formed by injection molding, and is formed to be horizontally long with a horizontal length (width) corresponding to the operation panel of each size. The horizontal frame member 15 is provided at each of the left and right ends thereof with a connecting plate portion 16 protruding vertically in an L-shape, and connecting screws 18, 18 are inserted adjacent to the connecting plate portion 16. Screw insertion holes 17, 17 are provided.

The horizontal frame member 15 has a screw insertion hole 17,
Reinforcing ribs and the like are not provided in most parts except the peripheral part of 17, and the horizontal frame member 15 has a relatively simple structure (compared to the vertical frame member 11). Also, the horizontal frame member 1
A plurality of locking projections 19, 19,... For locking the front plate 20 are provided at predetermined intervals in the lateral direction on the back side of the inner edge portion of the fifth plate 5.

Then, as shown in FIGS. 1 to 3, the connecting plate portions 16, 16.
Are connecting recesses 12 at the upper and lower ends of the vertical frame members 11
, And the connecting screws 18, 18 are screwed into the screw fitting recesses 13, 13,... Through the screw insertion holes 17, 17, and the outer surfaces of the horizontal frame members 15, 15 and the vertical frame members. 12, 12
The vertical frame members 11 and 11 and the horizontal frame members 15 and 15 are assembled in a rectangular frame shape by contacting the inner side surfaces of the vertical frame members 11 and 11. Therefore, the frame 10 including the vertical frame members 11, 11 and the horizontal frame members 15, 15 has a high rigidity as in the case where the frame 10 is integrally formed.

FIG. 8 is a rear view of the front plate 20. The front plate 20 is made of a synthetic resin, and is formed in a rectangular shape having a size corresponding to the size of the frame 10 (the height of the vertical frame member 11 and the horizontal width of the horizontal frame member 12). Hole 2
Are provided at intervals corresponding to the locking projections 19. The front plate 20 is connected to the frame 10.
Are provided on the rear side of the engaging holes 24, 24.
Are fixed so as to fit. The front panel 20 is provided with operation buttons 25, 25 and the like.

In the operation panel cover configured as described above, the respective dies of the vertical frame member 11 and the horizontal frame member 15 are relatively (compared to the case where the entire frame is integrally formed).
Since the vertical frame member 11 is small and common to the operation panels of each size, various types of large-sized operation panel covers can be manufactured at low cost.

[0015]

The present invention relates to an operation panel which is manufactured by assembling a rectangular frame made of synthetic resin and a flat front plate made of synthetic resin and covers the front of operation panels such as a switchboard and a control panel. In the cover, a frame is manufactured by assembling a vertically long vertical frame member and a horizontally long horizontal frame member separately formed, and forming the vertical frame member to a common length on a plurality of sizes of operation panels. By forming the members to have a length corresponding to the operation panel of each size, various types of large-sized operation panel covers can be manufactured at a low cost with a relatively small mold.

A frame is integrally formed by providing connecting plate portions protruding vertically in an L shape at both ends of the horizontal frame member and fixing the connecting plate portion to the back side of the vertical frame member. Similarly, the rigidity can be increased.

[Brief description of the drawings]

FIG. 1 is a front view of an operation panel cover according to an embodiment of the present invention.

FIG. 2 is a rear view of the operation panel cover of FIG. 1;

FIG. 3 is a cross-sectional view of the operation panel of FIG. 2 taken along line AA.

FIG. 4 is a rear view of only a vertical frame member in FIG. 2;

FIG. 5 is a cross-sectional view of the vertical frame member of FIG. 4 taken along line BB.

FIG. 6 is a rear view of only the horizontal frame member in FIG. 2;

FIG. 7 is a plan view of the horizontal frame member of FIG. 6;

FIG. 8 is a rear view of only the front plate in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rack (operation panel main body) 3 Fixing pin 10 Frame (operation panel cover) 11 Vertical frame member 12 Connection concave part 13 Screw screw concave part 14 Fixing hole 15 Horizontal frame member 16 Connection plate part 17 Screw insertion hole 18 Connection screw 19 Lock Projection 20 Front panel (operation panel cover) 24 Engagement hole 25 Operation button

Claims (2)

[Claims] 1. An operation panel cover which is manufactured by assembling a rectangular frame made of synthetic resin and a flat front plate made of synthetic resin and covers a front surface of an operation panel such as a switchboard or a control panel. The frame is manufactured by assembling a vertically-long vertical frame member and a horizontally-long horizontal frame member separately formed, and the vertical frame member is formed to have a common length on the operation panel of a plurality of sizes, The operation panel cover, wherein the member is formed in a length corresponding to the operation panel of each size. 2. A connecting plate portion protruding vertically in an L-shape is provided at both ends of the horizontal frame member. The horizontal frame member has the connecting plate portion fixed to the back side of the vertical frame member. The operation panel cover according to claim 1.