JP4295369B2 - Packing for panel unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packing used for a panel unit to be mounted on a panel such as an operation display panel.
[0002]
[Prior art]
An operation display panel used in a plant, a machine tool, or the like is provided with switches such as pushbutton switches and selector switches, display lamps such as LEDs, and the like. Recently, an operation display panel incorporating a liquid crystal display showing the state of the plant, the processing state, and the like is also widely used.
[0003]
By the way, plants and machine tools have become more sophisticated and complicated, and accordingly, the operation contents and display contents on the operation display panel have become complicated and diversified. Recently, switches having various dimensions have been developed. It is becoming more and more demanding to install various panel devices such as displays and displays on the panel, but there is no uniformity in shape, size, design, etc. among the respective panel devices, which makes the appearance cluttered There is a problem that not only the design of the board surface is bad, but also operability and visibility are deteriorated.
[0004]
In addition, since the conventional operation display panel needs to open a mounting hole for each device to be mounted on the panel, it takes a lot of man-hours to cut the panel and increases the man-hours for assembling the panel. There is.
[0005]
In order to solve such a problem, the present applicant has a case in which a rectangular flange is integrally formed on the front side, and the length of each side of the flange is set to an integral multiple of a predetermined reference dimension. A panel unit has been proposed in which a plurality of electrical equipment blocks are connected so that adjacent flanges are adjacent to each other to form one unit as a whole.
[0006]
[Problems to be solved by the invention]
By the way, when a panel unit is configured by connecting a plurality of electrical equipment blocks so that adjacent flanges are adjacent to each other, a packing for ensuring waterproofing of each electrical equipment block (waterproofing on the front side of the panel). Needs to have a shape in which an opening is provided only in a portion corresponding to the case of each electric device block. For example, in the case of a panel unit 100 in which three switch blocks 1.. 1 are connected as shown in FIGS. 5 and 6, it is necessary to use a packing 6 having a shape as shown in FIG.
[0007]
Here, the panel unit proposed by the present applicant is designed so that the length of each side of the flange of each electric equipment block is an integral multiple of the reference dimension, and the switch block and the display block can be freely combined. Therefore, it is preferable that a packing having a shape suitable for an operation panel to be designed and assembled can be easily obtained for a waterproof packing, which is suitable for such a use. It is an object of the present invention to provide a new packing.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the packing of the present invention (board surface unit packing) has a case in which a rectangular flange whose length of each side is set to an integral multiple of a predetermined reference dimension is formed on the front side. a packing flat used the provided Ru electrical equipment block board units constituting one unit as a whole plurality connected to a flange adjacent to each other adjacent to each other with respect, and a plurality of square openings together is processed into a lattice shape arranged in a matrix of said reference dimension as one pitch, the width of the grating edges is between the square opening adjacent to each other, it is adjacent to the end from one end of the packing the square are processed into dimension corresponding to approximately 2 times the outer periphery of the width to the opening, it is cut to fit the shape of the board unit, before postponed and the board unit By the grating side of the case and interfering portion of the electrical equipment block is cut off, characterized by the portion corresponding to the case of the electrical equipment block constituting the board unit is configured to open .
[0009]
In the packing of the present invention having the above configuration, one unit of the lattice corresponds to the minimum unit of assembly of the panel unit (reference dimension × reference dimension), so that it is cut according to the shape of the panel unit to be manufactured and assembled. Thus, it is possible to easily obtain a packing suitable for the board unit.
[0010]
For example, as shown in FIGS. 5 to 7, the packing 6 (FIG. 4) used for the panel unit 100 has outer peripheries (four sides) PA and PB of the lattice-shaped packing P as shown in FIGS. 1 to 3. Of the two sides adjacent to each other, the lattice sides Pa and Pb at positions corresponding to twice and three times the reference dimension from the corners of the two outer peripheries PA and PB are parallel to the outer perimeters PA and PB, respectively. After cutting along a straight line (cutting line C), it can be obtained by cutting off the lattice sides Pa and Pb of portions of the panel unit 100 that interfere with the case 10 of each switch block 1.
[0011]
In addition, the packing for board surface units of the present invention can be applied to a board surface unit having a structure in which an electric device block in which a flange having a hanging piece is formed on the front surface side is connected. In this case, the width of the peripheral outer packing, machined from the case side surface of the electrical equipment block dimension corresponding to the distance to the inner surface of the suspending piece flange, the width of the grating edges (suspending piece of the outer periphery of the width + flange To a dimension corresponding to about twice the thickness).
[0012]
DETAILED DESCRIPTION OF THE INVENTION
First, a panel unit to which the packing of the present invention is applied will be described with reference to FIGS. In the example shown in FIG. 5 to FIG. 7, an electrical equipment block, for example, three switch blocks 1... 1 are connected to each other by two types of connecting members 2 and 3 and a connecting frame 4. 100.
[0013]
The switch block 1 is, for example, a resin molded product, and has a structure in which a switch body (not shown) is accommodated in a case 10 in which a rectangular flange 11 is integrally formed on the front side, and the short side of the flange 11 is a reference dimension. The dimension is equal to (for example, 48 mm) and the long side is twice the standard dimension.
[0014]
A hanging piece 11a (thickness t) extending to the back side of the block is integrally formed on the flange 11, and a single protruding piece 11b extending along a direction parallel to the hanging piece 11a is formed on the back side of the flange 11. (For packing presser) is formed. Further, on each of the four side surfaces of the case 10 of the switch block 1, fitting grooves 12... 12 having a dovetail shape extending in the front-rear direction of the block are provided at a constant pitch.
[0015]
On the other hand, the connecting member 2 (for connecting two blocks) has a dovetail shape on both side surfaces of the hollow rectangular main body portion 21 and fits into a fitting groove 12 provided on the case side surface of the switch block 1. It is a resin molded product in which the strips 22 are integrally formed, and the width of the main body 21 is processed to be slightly smaller than the dimension between the cases 10 and 10 of the two switch blocks to be connected. The connecting member 2 can be inserted between the cases. The distance between the ant tenon slopes of the fitting protrusion 22 is such that the lower end portions of the hanging pieces 11a and 11a of the flanges are in contact with each other in a state where the switch block 1 is connected by the connecting member 2. It is set to become.
[0016]
A stopper 5 for preventing the connecting member 2 from coming off is fitted into the main body portion 21 of the connecting member 2. Further, the connecting member 2 is formed with two protrusions 21a and 21a extending along a direction parallel to the side surface of the main body at the front end of the main body 21 (the end on the front side of the unit). (See FIG. 7).
[0017]
Although the connecting member 3 for connecting the three blocks is not described in detail, the connecting member 3 is also basically a tenon-like fitting protrusion 32 like the connecting member 2 for connecting the two blocks. In addition, two protrusions 31a and 31a for waterproofing (see FIG. 7) are provided at the front side end of the connecting member 3.
[0018]
And in the board surface unit 100 of the above structure, the packing 6 of the shape shown in FIG. 4 is used as a waterproof packing at the time of attaching to the panel 8 (FIG. 8).
[0019]
Next, embodiments of the packing according to the present invention will be described below with reference to FIGS.
[0020]
As shown in FIG. 1, the packing P is a flat packing having a square shape as a whole (for example, made of silicon sponge; thickness of about 2 mm), and a plurality of square openings h ·· h are arranged in a matrix with a reference dimension S as one pitch. It has been processed into a lattice shape.
[0021]
The width W1 of the outer peripheries PA, PB of the packing P is the distance from the side of the case 10 of the switch block 1 to the inner surface of the hanging piece 11a of the flange 11 (in the case of the switch block 1 in this example). It is processed to a dimension corresponding to the width of the recess on the back surface side of the flange 11. The width W2 of each of the inner lattice sides Pa... Pa, Pb... Pb is processed to a dimension corresponding to (outer peripheral width W1 + flange hanging piece 11a thickness t) × 2.
[0022]
Next, the processing procedure in the case of producing the packing 6 used for the panel unit 100 shown in FIGS. 5 to 7 using the packing P having the above structure will be described.
[0023]
First, as shown in FIG. 2, out of the outer peripheries (four sides) PA, PB of the lattice-shaped packing P, two adjacent sides are used, and the reference dimensions are respectively determined from the corners of the two outer perimeters PA, PB. Are cut along a straight line (cutting line C) parallel to the outer periphery PA or PB. At this time, each cutting line C of each of the lattice sides Pa and Pb is set to a position where the thickness t of the hanging piece 11a of the flange 11 of the switch block 1 is kept from the center line L of each of the lattice sides Pa and Pb. The packing P is cut using, for example, a cutter and a ruler.
[0024]
Next, the cut packing P ′ (FIG. 3) and the panel unit 100 are checked, and the lattice sides Pa and Pb of the cut packing P ′ interfere with the case 10 of each switch block 1 of the panel unit 100. By performing the cutting process of cutting off the lattice sides Pa and Pb of the portion, the packing of the shape shown in FIG. 4, that is, the shape corresponding to the flanges 11... 11 of each switch block 1. The packing 6 in which only a portion corresponding to the case 10 of each switch block 1 is opened can be obtained.
[0025]
In the above embodiment, an example in which the packing 6 used for the panel unit 100 in which three switch blocks are connected is shown. However, the present invention is not limited to this and the switch blocks of other forms are used. It can also be used to manufacture packings of arbitrary forms of units, such as displays and displays, which are formed by connecting various electrical equipment blocks in which each side of the flange is set to an integral multiple of the reference dimension.
[0026]
Here, in the present embodiment, since the protrusion 11b for packing pressing is formed on the inner surface of the flange 11 of each switch block 1, when the panel unit 100 is attached to the panel 8, FIG. As shown in FIG. 9, the protrusion 11 b on the inner surface of the flange bites into the packing 6 and a higher waterproof effect can be obtained.
[0027]
Further, since the two protrusions 21a and 21a extending in the direction parallel to the case side surface of the switch block 1 are formed at the front side end portions of the connecting members 2 and 3, as shown in FIGS. When the switch blocks 1 and 1 are connected, one of the protrusions 21a bites into the packing 6 located on the inner surface of one flange 11 of the connected switch block 1, and the other protrusion 21a is connected to the other. Since the switch block 1 is bitten into the packing 6 on the inner surface of the flange 11, the waterproof effect of each switch block 1 can be enhanced. Therefore, the waterproof effect of the whole board unit is enhanced.
[0028]
In the above embodiment, the example of the packing used for the panel unit of the structure in which the flange having the hanging piece is connected to the electric device block formed on the front side is shown, but the present invention is not limited to this. Can also be applied to packing of a panel unit having a structure in which electrical equipment blocks having flanges with flat contact surfaces to the mounting panel are connected.
[0029]
【The invention's effect】
As described above, the packing of the present invention is processed into a lattice shape in which a plurality of square openings are arranged in a matrix, and one unit of the lattice corresponds to the minimum assembly unit (reference dimension × reference dimension) of the panel unit. Therefore, by cutting according to the shape of the board surface unit to be manufactured and assembled, it is possible to easily obtain a packing suitable for the board surface unit. There is no need to prepare packing beforehand. Further, after the packing according to the present invention is cut out for one board unit, the remaining part can be used for producing packings of board units of other combinations and forms.
[Brief description of the drawings]
FIG. 1 is a front view of an embodiment of the present invention.
FIG. 2 is an enlarged view of a main part of the embodiment of the present invention.
FIG. 3 is an explanatory diagram of a method of using the embodiment of the present invention.
FIG. 4 is a front view showing an example of packing obtained by cutting the embodiment of the present invention.
FIG. 5 is a front view of a panel unit to which the embodiment of the present invention is applied.
FIG. 6 is a rear view of the main part of the panel unit.
7 is a cross-sectional view taken along the line E-E in FIG. 6;
8 is a longitudinal sectional view of a main part showing a waterproof structure of the panel unit shown in FIG. 5. FIG.
FIG. 9 is a longitudinal sectional view of an essential part showing a waterproof structure.
[Explanation of symbols]
P Packing PA, PB Outer periphery Pa, Pb Lattice side h Square opening C Cutting line S Reference dimension 1 Switch block 10 Case 11 Flange 11a Hanging piece 2, 3 Connecting member 4 Connecting frame 5 Stopper 6 Packing

Claims (2)

The length of each side plurality connected to rectangular flange that is set to an integral multiple of a predetermined reference dimension adjacent flange adjacent to each other electrical equipment block Ru includes a case formed on the front side overall a packing flat used for the board unit which constitutes a single unit, Te,
A plurality of square openings are machined in a lattice shape arranged in a matrix of said reference dimension as one pitch, the width of the grating edges is between the square opening adjacent to each other, said one end of said packing Processed to a dimension corresponding to about twice the width of the outer periphery to the square opening adjacent to the end ,
Wherein is cut according to the shape of the board unit, by the grid side of the case and interfering portion of the electrical device block postponed and the board unit is cut off, the said electrical device blocks constituting the board unit A packing for a panel unit, wherein a portion corresponding to the case is opened . A board unit packing according to claim 1,
The flange has a hanging piece extending to the back side of the electrical equipment block,
The outer width of the peripheral is processed from the side of the case before Symbol electrical equipment block dimension corresponding to the distance to the inner surface of said depending member of said flange, and said width of the grating edges (the outer periphery of width + the A packing for a panel unit, which is processed to a dimension corresponding to about twice the thickness of the hanging piece of the flange ).

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