JPH044704A - control panel - Google Patents

Abstract

PURPOSE:To make a door free in opening and closing and thin a side plate by setting the lower hinge pin of the door in the hinge pin hole at the part where the front of the bottom plate of a cage is projected to the surface of a door, and setting the upper hinge pin of the top plate of the cage in the hole at the upside of the door. CONSTITUTION:The bottom plate 4 of the cage 2 of a control panel 1 is projected to the front of a door 3, and a front projecting part 4A and a pin hole 4B are provided. The fixing part 9a of a lower hinge pin 9 is welded to the corner on the inside of the door 3, and a pin part 9B is set in the pin hole 3A of the door 3 and the pin hole 4B of the bottom plate 4. Moreover, an upper hinge pin 11, which is welded to the upper metal fitting 10 being attached to the upside of a top plate 6 by a bolt 13 and a nut, set in the pin hole 3A of the bearing 12 welded to the upper inside of the door 3. The door 3 is supported freely in opening and closing at the upper and lower hinge parts, and the weight of the door 3 is borne at the angle of the bottom plate 4. Hereby, the side plate 5 and the top plate 6 are made of thin plates, and flange parts 5A and 6A are constituted easily at the whole circumference of the front, and packings 31 are interposed (G) between them and the inward crook 3B of the door 3, whereby the penetration of dust can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control panel on which electronic devices and the like are mounted, and particularly to the structure and mounting structure of a dustproof layer thereof.

[Conventional technology]

Figure 8 is a perspective view showing the external shape of a conventional control panel of this type.
The figure is a longitudinal sectional view thereof, and FIG. 10 is a plan sectional view showing the process of closing the door. In Figures 8 to 10, (2) is the casing of the control panel (1), which includes a bottom plate (4), a side plate (5), and a top plate (
6) and has an opening in the front, and a door (3) is provided in this opening. In addition, a front flange is formed around the opening by the lower bent part (4A) of the bottom plate (4), the left and right U bent parts (5A) of the side plate (5), and the U bent part (6A) of the top plate (6). It is formed.

Reference numerals (7) are level adjusters that serve as legs provided at the four corners of the lower surface of the bottom plate (4).If the control panel needs to be moved, casters may be installed in place of the level adjusters (7). (8) is an L-shaped lower metal fitting, which is attached to the lower end of the lower bent portion (4A) of the bottom plate with a bolt (13) and a nut (14).

(9) is a lower hinge pin, which is welded to the lower metal fitting (8) and has a spacer portion (9A) in the middle.

(10) is a lower metal fitting to which an upper hinge pin (11) is welded, and is attached to the upper surface of the top plate (6) with bolts (13) and nuts (14). Bearings (12) are welded to the upper and lower corners of the inside of the door (3), and bearings (12) are welded to the upper and lower surfaces of the door (3).
A bottle hole (3A) is drilled corresponding to the hole. R(3)
The upper and lower hinge pins (11) and (9) are respectively fitted into the bottle holes (3Al bearings (12)) on the upper and lower surfaces of the door (3).
) is rotatably supported. Inner bent portions (3B) are formed on all sides of the door (3), into which gaskets (15) are fitted. The packing (15) has a cross section in which a fitting part (15A) having a U-shaped groove and a hollow part (15B) are integrated, and a U-shaped steel plate clip (not shown) is included in the fitting part (15A). ) is inserted to strengthen the mating force.

When the door (3) is closed, the hollow part (15
B) is compressed by contacting the front flange of the housing (2),
The control panel (1) is sealed dust-proof. Also, Fig. 11 is a perspective view of a conventional control panel that is installed in a relatively poor environment and requires a dust-proof and drip-proof structure, and Fig. 12 is a vertical sectional view of the main part of Fig. 11.
FIG. 13 shows a cross-sectional view of a main part of the hinge portion of FIG. 11.

In the figure, (1) is the control panel, (2) is its housing 7 (3)
is a door bent on all sides. The housing (2) has a bottom plate (
4) It is composed of left and right side plates (5) and a top plate (6), and has an opening in the front. Around each of the openings, there are U-bent portions (4
C) A drain flange (16) located on the inner surface of the door (3) is formed by the U-bend portions (5B) of the left and right side plates and the U-bend portion (6B) of the top plate.

(17) is attached to the U-bent portion (5B) of the right side plate (5) by hinges at multiple locations by screw members (18).

(19) is caulked to the hinge (17) with a hinge pin. The hinge pin (19) is located at the inner corner of the door (3).
A bearing (20) that fits into the door (3) is welded thereto, and the door (3) is rotatably supported. (21) is a dust-proof and drip-proof gasket attached to the inner surface of the door (3), and is compressed between it and the drain flange (16). Water droplets and oil droplets scattered from the surrounding area are removed by the drain flange (which acts as a gutter).
16) and is discharged to the bottom to prevent it from entering the board.

The control panel (1) is a pedestal (
(not shown), and is often integrated mechanically and electrically with the machine tool. (22) is a connector for electrical connection with a machine tool, and has a square hole (4 holes) drilled in the bottom plate.
D) The connector mounting fixed on the top is attached to the base (23). Therefore, the fitting portion of the connector (22) does not protrude beyond the outer periphery of the bottom plate (4), thereby preventing damage during assembly.

[Invention or problem to be solved]

In order to increase the packaging density and downsize many control panels, many electronic devices are attached to the inside of the door, so the total weight of the door is often large. The conventional control panel (1) shown in Figures 8 to 10 above supports the door (3) with a lower bracket (8) that supports one side, so if the door (3) is heavy, it may sag. Ru. In order to prevent this dripping, the lower metal fitting (8),
There was a problem in that it was necessary to reinforce the lower bent portion (4A) of the bottom plate, which increased costs. In addition, in the conventional control panel (1) with a hinge on the side wall as shown in Figs. Since the door (3) is supported, a bending moment is applied to the U-bending portion (5C) due to the weight of the door (3), and the U-bending portion (5C) is likely to sag, causing the door (3) to sag. For this reason, since the side plate (5) cannot be manufactured from a thin plate, there is a problem that the cost of the housing (2) cannot be sufficiently reduced.

Also, in a control panel with the above structure.

Since the level adjusters (7) or casters serving as the legs are arranged recessed by the thickness of the door, there is a problem in that control panels with a narrow depth tend to fall back and forth.

Furthermore, the structures shown in FIGS. 8 and 9.

As shown in Figure 10, while closing the door (3).

The hollow part (15b) of the packing on the hinge side hits the U-bent part (5A) of the side plate and receives a detachment force in the direction of the arrow.

If the gap between the door (3) and the front flange of the housing (2) is not appropriate due to manufacturing errors and is too narrow, the above-mentioned detachment force will be greater than the fitting force of the fitting part (15A) of the seal.

The packing (15) comes off from the inner bent part (3B) of the door. Furthermore, if this gap is too wide, the dustproof effect will be impaired. In order to eliminate such problems, Japanese Patent Laid-Open No. 63-286
The control panel disclosed in Japanese Patent No. 000 proposes a structure in which upper and lower hinge pins can be adjusted in the front-rear direction in order to make the above-mentioned gap appropriate. However, performing such adjustment work has the problem of decreasing productivity.

In addition, in a control panel with a dustproof structure having a door, Japanese Utility Model Publication No. 58-95106 discloses an elastic packing having a rectangular cross section with the outer corner that contacts the box body of the panel cut off diagonally on the inner surface of the door on the hinge side. In this case, thick packing is required all around the circumference.

This invention was made to solve the above-mentioned problems, and provides a control panel that can support a heavy door with a simple configuration, prevents the hinge side gasket from coming off, and has good stability during installation. The purpose is to

[Means to solve the problem]

In the control panel according to the present invention, the front surface of the bottom plate constituting the housing protrudes to the same level as the surface of the door, and the flange is raised from the top surface of the protruding bottom plate at the position of the opening, so that the lower flange The hinge pin protruding from the lower surface of the door is fitted into the pin hole drilled on the upper surface of the front protrusion of the bottom plate, and the upper hinge pin fixed to the lower metal fitting attached to the top plate of the case is inserted into the upper hinge pin protruding from the lower surface of the door. The door is fitted onto the top surface of the door, and the door is rotatably supported on the top surface of the front protrusion of the bottom plate.

In addition, three internally bent portions are formed on the top and bottom of the door and on the opposite side of the door to face the front flange of the housing opening.

A notched step is formed on the hinge side, a thin first packing is attached to the inner bent portions of the three sides, and a second packing having a thickness that is flush with the first packing is attached to the notched step. It is something that

In addition, the front flange portion of the casing includes an upper gutter portion having a U-shaped cross section formed from the top plate of the casing, side gutter portions having a C-shaped cross section formed from the left and right side plates of the casing, and two side gutter portions formed from the top plate of the casing. It is composed of a bottom gutter portion having a U-shaped cross section and formed from the top surface of the bottom plate and a member fixed to the top surface.

Furthermore, wheels or legs are provided at both corners of the lower surface of the front protrusion of the bottom plate of the casing.

[Effect]

In this invention, the weight of the door is supported by the corners of the bottom plate,
There is no need for a lower metal fitting to support the lower hinge pin, and the front legs on the bottom of the bottom plate can be placed at the bottom of the door. In addition, since the weight of the door is supported by the corners of the bottom plate, no deforming force is applied to the side plates of the case due to the weight of the door and the resulting bending moment. Not only can it be manufactured, but also the gutter can be easily formed around the entire circumference of the front flange.

Further, the second gasket, which is pressed against the front flange of the housing while closing the door, is supported by the notch step and is prevented from peeling off.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. In the figure, (1) is a control panel according to the present invention,
(2) is the casing, and (3) is the door.

The casing (2) is composed of a bottom plate (4), side plates (5) and (6), and has an opening in the front. The front surface of the bottom plate (4) protrudes to the same level as the surface of the door (3).
) is formed at the lower part thereof with a front protrusion (4A), and a pin hole (4B) is bored in the corner of the upper surface thereof. (7) is a level adjuster serving as a leg disposed on the lower surface of the bottom plate (4). Around the opening of the casing (2) are the left and right U-bent parts (5A) of the side plates, the U-bent parts (6A) of the top plate, and the bottom plate (
4) A front flange is formed by a flange member (8) attached to the upper surface. (9) is a stepped lower hinge pin, the fixed part (9A) is welded to the inner corner of the door (3), and the pin part (9B) is attached to the door (3) and the pin hole (
3A) and is fitted into the pin hole (4B) of the bottom plate (4). (3o) is a spacer fitted into the pin part (9B). (1o) is a stopper to which the upper hinge pin (11) is welded, and is attached to the upper surface of the top plate (6) with bolts (13) and nuts (14). A bearing (12) is welded to the upward corner of the door (3), and a pin hole (3A) corresponding to the bearing (12) is drilled on the top surface of the door (7), into which the upper hinge pin (11) is fitted. , doors (three are rotatably supported on the upper surface of the bottom plate front protrusion (4A)).

On the top and bottom of the door (3) and on the side opposite to the hinge, there are three internally bent parts (3B) facing the front flange of the opening of the housing (2), and on the hinge side there is an internally bent part close to the door surface. (3C) and
From this hinge side inner bent part (3C) to the upper and lower inner bent parts (3
A notch step portion (3E) is formed by the rearward bending portion (3D) extending at right angles to B). Inner bends on three sides (3B
) is pasted with a thin first gasket (31), and a first gasket (31) is pasted on the inner bent portion (3C) of the notch step.
A second gasket (32) with a rectangular cross section and a thickness that is flush with the opening of the housing (2) and the door (
3) and the gap (3G) is sealed dust-proof.

According to the above configuration, the door (3) is supported by the front protrusion [4A] of the bottom plate (4), and the lower surface is supported by the level adjuster (7), so the weight of the door (3) is large. However, it can be made to withstand sufficient strength without special reinforcement. Also, the depth of the bottom plate (4) is the control panel (
1) Since the dimensions are the same as the overall depth, the front level adjuster (7) can be placed at the bottom of the door (3), maximizing the distance between it and the rear level adjuster (7). Control panel that is wide and has a particularly small depth (1)
Effective in preventing falls.

In addition, while closing the door (3), the second seal (32)
As shown in Fig. 4, hits the U-bent portion (5A) of the side plate (5) and is compressed and at the same time receives a peeling force in the direction of the arrow, but is supported by the rear bent portion (3D) and this peeling force is reduced. Further, by forming the notched step portion (3E), the second packing (32) can be made thick enough to shrink greatly. Therefore, even if the gap (G) between the door (3) and the front flange of the housing (2) becomes narrow due to manufacturing errors,
Separation of the second packing (32) does not occur.It goes without saying that the first packing (31) and the second packing (32) should have elasticity and thickness that can absorb variations in the gap CG). The second gasket (32) is preferably of soft hardness so that compression is performed without resistance when opening and closing the door (3). On the other hand, when the door (3) is bolted and closed, the first gasket (31) should have a slightly high hardness so as not to sink excessively. Specifically, the first patchkin (3
The hardness of 1) is 30° to 45°, the second packing (32)
A combination of hardness of 15° to 30′ is preferred.

In addition, in the above embodiment, a pin hole (4B) corresponding to the lower hinge pin (9) on the door side is provided in the front protrusion of the casing (4A), and an upper hinge pin (11) is provided on the top plate (6) side of the casing. , make the corresponding pin hole (3A) on the door side, or reverse the relationship, and place the lower hinge pin on the front protrusion of the case.
A corresponding pin hole may be provided on the door side, and an upper hinge pin may be provided on the fastener side provided on the top plate of the casing.

FIG. 5 shows another embodiment of the invention. In the figure, (
4) is a bottom plate with the sides bent upwards, with a rising front part (4B), a folded part (4C) with pin holes (4E) or drilled holes, and a front protrusion part (4A) formed by a 72 lunge part (4D). It is formed. The rest is the same as the embodiment shown in FIG. 2, so the explanation will be omitted.

Next, another embodiment of the present invention will be described with reference to FIGS. 6 and 7. In the figure, (1) is a dust-proof and drip-proof control panel according to the present invention, (2) is its casing, and (3) is a door. The casing (2) is composed of a bottom plate (4), a side plate (5), and a top plate (6), and has an opening in the front.

The bottom plate (4) is arranged below the door (3), and its front surface protrudes to the same level as the surface of the door (3), and a front protrusion (4A) is formed at the bottom of the door (3). A pin hole (4B) is bored in the corner of the top surface.

Around the opening of the casing (2), there are left and right side plates (5).
An L-bent part (5C) is formed on the front edge of the top plate (6) and serves as a flange, and a trough-shaped U-bend part (6C) is formed on the front edge of the top plate (6).
) and a lower flange member (8) with two cross sections attached to the upper surface of the bottom plate (4) to form a draining flange (16).
is formed. L bent part of the above left and right side plates (5C)
A notch (5D) for receiving the lower edge of the door (3) is formed in the lower part of the door (3), and the lower flange member (8) is joined to the lower end of the notch (5p).

(9) is a stepped lower hinge pin, and the fixing part (9A) is the door (
3), and the pin part (9B) is welded to the inside corner of the door (3).
Pass through the pin hole on the bottom surface, and pin hole (4B) on the bottom plate J: [
are combined. (30) is a spacer fitted into the pin part (9B). (10) is the upper metal fitting to which the upper hinge pin (11) is welded, and the bolt (13) is attached to the top surface of the top plate (6).
and a nut (14). door (3)
A bearing (12) is welded to the upper white corner. The upper hinge pin (11) is attached to the above bearing (12) with IFE (
3) The door (3) is fitted through the upper surface, and is rotatably supported on the upper surface of the bottom plate front protrusion (4A). (2
1) is a dust-proof and drip-proof gasket attached to the inner surface of the door (3), and is compressed between it and the drain flange (16). Water droplets and oil droplets scattered from the surroundings reach the lower part along the drain flange (16) that serves as a gutter, and are discharged from between the bottom plate (4) and the lower flange (8), preventing them from entering the panel.

(22) is a connector for electrical connection with a machine tool, and the four pieces are directly attached to the bottom plate (4) bent downward, but since it does not protrude from the outer periphery of the bottom plate (4), it is not completed during assembly. damage is prevented.

According to the above configuration, the weight of the door (3) is supported by the corner portion of the front projection (4A) of the bottom plate (4), and the weight of the door (3) is supported by the corner portion of the front protrusion (4A) of the bottom plate (4).
The bending moment due to the weight of the door is applied to the entire casing (2) via the top plate (6), and the weight of the door and the bending moment due to it are not applied to the L-bending portion (5C) of the side plate.

Therefore, the left and right side plates (5) can be made of relatively thin plates. Specifically, conventional 2. 3mm thick one is 16 to 1.
It can be made as thick as 2nwn.

In addition, the support points for the door (3) on the top plate (6) and the bottom plate (4) are both corner parts, and since there are places where bending is inherently likely to occur, it is possible to manufacture them from thin plates as well. In addition, even when equipment is attached to the inner surface of the door (3) and its total weight is large, it is sufficient to provide flat plate reinforcement to the corners of the top plate (6) and bottom plate (4). Provides strength.

The front edge of the conventional side plate (5) shown in FIG. 12 was formed with a U-bend (5B) not only for the dust-proof and drip-proof function but also for the purpose of increasing strength.1 The side plate of the control panel of the present invention (5) only needs to have a dust-proof and drip-proof function, so the bent part (5c) is easy to manufacture.
). Further, the plate (23) can be omitted when attaching the connector to prevent damage to the conventional connector (22).

〔Effect of the invention〕

As described above, in this invention, the front surface of the bottom plate of the housing protrudes to the surface of the door, and near the corner of the top surface of this protrusion, the door is pivotally supported via the hinge pin, and the weight of the door is received. Compared to the conventional method, the gutter section can be created in the housing and the front flange of the housing with a simpler structure using a thin plate.

In addition, a thick gasket was installed in the notch on the hinge side of the door, so that the separation force that the pankin receives when opening and closing the door is received by this notch, so there is no possibility that the gap size between the casing and the door will vary. Even if the door is opened/closed, the hinge side pankin can be prevented from coming off when the door is opened/closed.

In addition, one leg can be attached to the lower front corner of the bottom plate of the casing that protrudes to the front of the door, allowing for a wider span than the conventional leg span, allowing for a stable installation that is advantageous against falls. It has the following effects.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the overall configuration of an embodiment of the present invention;
Figure 2 is a vertical cross-sectional view of the main part of Figure 1, Figure 3 is a cross-sectional view showing the configuration of the hinge part in Figure 1, Figure 4 is a cross-sectional view showing the door closing process, and Figure 5 is a cross-sectional view of the main part of Figure 1. FIG. 6 is a vertical cross-sectional view showing the main part of another embodiment of the present invention; FIG.
The figures are a cross-sectional view of the main part of the lower hinge part in Fig. 6, a perspective view showing the overall configuration of an example of a conventional control panel, Fig. 9 a longitudinal sectional view of the main part of Fig. 8, and Fig. 10. This figure is a cross-sectional view showing the closing process of the door in FIG. 8. Figure 11 is an overall perspective view of the conventional pond system control panel.
2 is a longitudinal cross-sectional view of the main part of FIG. 11, and FIG. 13 is a cross-sectional view of the main part of the hinge portion of FIG. 11. In the figure, (2) is the casing, (3) is the door, (3B) is the inner bending part, (3C) is the inner bending part on the hinge side, (3D
) is the rear bent part, (3E) is the notch step, (4) is the bottom plate, (4A) is the front protrusion, (4B) is the bottle hole, (
5C) is the L-bending part, (6) is the top plate, (6C) is the U-bending part, (8) is the lower flange member, (9) is the lower hinge pin, (16) is the drain flange, (21) is the packing,
(31) is the first punchkin, and (32) is the second punchkin. In the figure. The same symbols indicate the same or equivalent parts.

Claims (4)

[Claims] (1) A casing with an opening with a flange formed on the front, and a door that covers the opening and is rotatably supported at the top and bottom by hinge pins, and the gap between the opening and the door is dust-proof. In the control panel in which the packing is installed, the front surface of the bottom plate constituting the housing protrudes to the same level as the surface of the door, and the flange is raised from the top surface of the protruding bottom plate at the position of the opening. A lower flange is formed by fitting the hinge pin protruding from the lower surface of the door into a pin hole drilled on the upper surface of the front protrusion of the bottom plate, and the upper plate is fixed to the upper metal fitting attached to the top plate of the case. A control panel characterized in that a hinge pin is fitted to the upper surface of the door, and the door is rotatably supported on the upper surface of the front protrusion of the bottom plate. (2) The front flange part of the above-mentioned casing includes an upper gutter part with a U-shaped cross section formed from the top plate of the casing, and both side gutter parts with an L-shaped cross-section formed from the left and right side plates of the casing, and the casing. 2. The control panel according to claim 1, comprising a bottom gutter portion having a U-shaped cross section and formed from the top surface of the bottom plate and a member fixed to the top surface. (3) The control panel according to claim 1, wherein wheels or legs are provided at both corners of the lower surface of the front protrusion of the bottom plate of the casing. (4) Inner bends on three sides opposing the front flange of the opening of the casing are formed on the upper and lower parts of the door and on the side opposite to the hinge, and on the hinge side there is an inner bend near the door surface and this inner bend. A notch step is formed by a rear bending portion extending from to the upper and lower inner bending portions, and a first packing is attached to the inner bending portion of the three sides. The turning board according to claim 1, further comprising a second packing having a thickness of .