JPH049823Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an opening/closing mechanism for an inspection panel attached to a ceiling surface for inspecting an air conditioner or the like housed in the ceiling.

[Conventional technology]

Figure 7 is a configuration diagram showing a conventional ceiling-mounted inspection panel device, in which 1 indicates the ceiling slab surface 2.
The air conditioner is suspended in the ceiling by hanging bolts 3 fixed to the ceiling, and a blower 4, a heat exchanger 5, a drain pan 6, etc. are housed inside, and the inlet 7 and outlet 8 are connected to the ceiling. A suction grill 10 and an outlet grill 11 attached to a surface 9 are connected by a duct 12 to form a ventilation path between the room and the air conditioner 1. Reference numeral 13 denotes a panel frame that is installed along the periphery of a ceiling opening 14 provided in the ceiling surface 9 at the lower part of the air conditioner 1 and has a rising portion 13a in the direction of the ceiling, and 16 is a rising portion of the panel frame 13. Part 13
A support shaft on the fulcrum side projects approximately horizontally from a and has a screw at its tip; 15 is an insertion hole 18 in the side surface;
An inspection panel 19 is rotatably supported by the fulcrum-side support shaft 16 in the insertion hole 18 and covers the inner space 13b of the panel frame 13. On the other hand, the insertion hole 19a located on the center of gravity 15b side of the inspection panel
This is a mounting screw that is screwed through the panel frame 13 to a screw seat 20 provided on the rising portion 13a of the panel frame 13.

In such a configuration, indoor air that is sucked in by the blower 4 through the suction grill 10 and heat-exchanged by the heat exchanger 5 is sent back into the room from the outlet grill 11 to air-condition the room. However, due to long-term operation, maintenance and inspections such as cleaning dust accumulated in the drain pan 6 that receives condensate condensed in the heat exchanger 5 during cooling, cleaning dust adhering to the heat exchanger 5, and replacing the blower 4 due to failure are required. Is required. To perform these maintenance and inspections, conventional inspection panel 1
Use a tool such as a screwdriver to turn the mounting screw 19 that fixes the fulcrum side support shaft 1.
Rotate the inspection panel 13 around 6 to open it,
I worked from the space available there.

[Problem that the invention attempts to solve]

The above-mentioned work is performed by removing the mounting screws 19 and opening the inspection panel 15, but since the work is done at a high place, it is difficult and dangerous to open and close the inspection panel 15 using tools. Furthermore, since the mounting screws 19 are exposed on the surface of the inspection panel 15, this is not desirable in terms of design.

This idea was devised to solve the problems mentioned above. It allows the inspection panel to be opened and closed with a single touch without using any tools, and it also eliminates the need for screws to protrude on the surface of the inspection panel, making it an attractive inspection tool. The purpose is to provide a panel device.

[Means for solving problems]

This invention includes a panel frame that is installed along the periphery of a ceiling opening and has a rising portion in the direction of the ceiling, and an insertion hole provided in the side surface of the panel frame. an inspection panel rotatably supported on a fulcrum side support shaft protruding in the horizontal direction and covering the inner space of the panel frame, the center of gravity side of the inspection panel with respect to the insertion hole; A through hole is provided that penetrates both the upper and lower surfaces of the inspection panel, and a hook-shaped engaging part is formed at one end to engage with a support part protruding from the rising part of the panel frame, and A support hole is provided at the other end, and in this support hole, the inspection panel is rotatably supported on an opening/closing side support shaft provided on the inspection panel in a substantially horizontal direction corresponding to the through hole. By lifting the hook upward, the hook-shaped engaging part is removed from the supporting part, and is further rotated by the moment acting around the opening/closing side support shaft, so that the engaging set part formed on the outer side of the hook-shaped engaging part is removed from the supporting part. By providing an engaging member that is exposed downward from the lower surface of the inspection panel through the through hole, a ceiling-mounted inspection panel device is configured to achieve the above object.

[Effect]

In this invention, the inspection panel is rotatably supported by a support shaft on the fulcrum side in an insertion hole provided on its side surface, and corresponds to a through hole provided on the center of gravity side of the inspection panel relative to the insertion hole. A hook-shaped engaging part formed at one end of the engaging member rotatably supported on the opening/closing side support shaft provided on the inspection panel is attached to a support provided protruding from the rising part of the panel frame. By lifting the center of gravity 15b side of the inspection panel from below, the hook-shaped hooking portion is detached from the support portion, and the hook-shaped hooking portion is further moved to the center of gravity of the hooking member. The engaging member rotates due to the moment around the opening/closing side support shaft due to applied gravity or spring force, and the engaging set portion formed on the outer side of the engaging member engages with the through hole. It is exposed downward from the bottom surface of the inspection panel through the inspection panel. In this state, the inspection panel can be rotated about the fulcrum side support shaft, and the inspection panel can be opened.

When closing the inspection panel, rotate the inspection panel in the opposite direction to when opening it, and then push the engagement set part exposed from the bottom of the inspection panel to open the engagement member. The inspection panel can be held closed by rotating around the opening/closing side support shaft and engaging the hook-shaped engaging portion with the supporting portion.

〔Example〕

FIG. 1 is a sectional view of a ceiling-mounted inspection panel device showing an embodiment of this invention, FIG. 2 is an enlarged view of the main parts of the ceiling-mounted inspection panel device shown in FIG. FIG. 4 is a diagram showing the state when the inspection panel is lifted up, and FIG. 5 is a diagram showing the rotating state of the inspection panel.

In these figures, 9, 13, 13a, 13
b, 14 to 16, 15b, and 18 are completely the same as or equivalent to the conventional device shown in FIG. 27 is a through hole located on the center of gravity 15b side of the inspection panel 15 with respect to the insertion hole 18 of the inspection panel 15, and penetrates both upper and lower sides of the inspection panel 15; 23 corresponds to the through hole 27, and is approximately The opening/closing side support shafts are provided horizontally on the inspection panel 15, and 26 is the rising portion 13 of the panel frame 13.
A protruding support portion 21 is a hooking member, and one end thereof is formed with a hook-shaped hooking portion 24 that engages with the support portion 26, and the other end is provided with the opening/closing side support shaft. 23 is provided with a support hole 25 which is rotatably supported, and when the hook-shaped engaging portion 24 is removed from the supporting portion 26 by lifting the inspection panel 15 upward, the engaging member It rotates around the opening/closing side support shaft 23 due to the moment of gravity acting on the center of gravity of the inspection panel 15, and the engaging set portion 21a formed on the outer side passes through the through hole 27 and exits from the lower surface of the inspection panel 15. It is configured to be exposed downward.

In addition, when the engaging part 24 of the engaging member 21 is engaged with the support part 26, the engaging member 21, such as the engaging set part 21a, is configured so as not to be exposed to the lower surface of the inspection panel 15. There is.

To open the inspection panel 15 of the inspection panel device configured as described above, lift the center of gravity 15b side of the inspection panel 15, that is, the side where the engaging member 21 is attached, and move the panel frame as shown in FIG. The hook-shaped engaging part 24 is made to come off from the support part 26 which is provided in a protruding manner on the rising part 13a of 13. At this time, the opening of the engaging portion 24 is oriented as described above so that the engaging member 21 can rotate around the opening/closing side support shaft 23 due to the moment of gravity acting on the center of gravity 22 of the engaging member 21. Since it is formed in the opposite direction to the direction of the moment, the hook-shaped engaging portion 2
4 slips out from the support part 26 and attaches to the engaging member 2.
1 rotates. When rotated as described above, the engaging set portion 21a formed on the outer side of the engaging member 21 passes through the through hole 27 and is exposed downward from the lower surface of the inspection panel 15. In the above state, the inspection panel 15 is connected to the fulcrum side support shaft 16
The inspection panel can be opened.

In addition, when closing the inspection panel 15, follow the procedure in reverse to the above to close the inspection panel 15 until it reaches the state shown in FIG.
, and insert the engaging set portion 21a exposed on the lower surface of the inspection panel 15 into the through hole 2.
7, hold it in the state shown in FIG. 3, and lower the center of gravity side 15b of the inspection panel 15, so that the engaging part 24 of the engaging member 21 engages with the support part 26,
The inspection panel is held on the ceiling surface.

In addition, in the above embodiment, the insertion hole 18 and the hanging member 2
1 is provided on the same side surface of the inspection panel 15, but the hooking member 21 is provided on the side surface opposite to the side surface where the insertion hole 18 is provided, or on the side surface adjacent to the insertion hole 18. For the above inspection panel 15
A similar effect can be obtained even if it is provided on the center of gravity 15b side.

Furthermore, when opening the inspection panel 15, the moment for rotating the engaging member 21 is generated at its center of gravity 22.
However, in order to obtain a similar moment, one end is engaged with the inspection panel 15, and the other end is engaged with the outer part of the engagement member 21, etc. Similar effects can be obtained by using the elastic force of an elastic body such as the spring 21b.

Further, in the above embodiment, an inspection panel device attached to the ceiling surface 9 has been described, but it may also be a panel of a ceiling-suspended air conditioner or the like, and the same effects as in the above embodiment can be obtained.

[Effect of idea]

As described above, according to this invention, a panel frame body is installed along the periphery of a ceiling opening and has a rising portion toward the inside of the ceiling, and an insertion hole is provided in the side surface, and the panel frame body and an inspection panel that is rotatably supported on a fulcrum-side support shaft that protrudes approximately horizontally from the rising part of the panel frame, and that covers the inner space of the panel frame, the inspection panel is A through hole is provided at the center of gravity of the inspection panel and extends through both the upper and lower sides of the inspection panel, and a hook-shaped hole is provided at one end to engage with a supporting portion protruding from the rising portion of the panel frame. A hooking portion is formed, and a support hole is provided at the other end, and in the support hole, the inspection panel is rotatable about an opening/closing side support shaft provided on the inspection panel in a substantially horizontal direction corresponding to the through hole. By lifting the inspection panel upward, the hook-shaped engaging part is detached from the supporting part, and is further rotated by the moment acting around the opening/closing side support shaft, so that the hook-shaped engaging part is formed on the outer side thereof. The ceiling-mounted inspection panel device is constructed by providing a hooking member whose hooking set portion passes through the through hole and is exposed downward from the bottom surface of the inspection panel, so that the inspection panel can be opened and closed with a single touch. It was possible to obtain a ceiling-mounted inspection panel device that was able to carry out the inspection and had a good appearance without any protrusions on the lower surface of the inspection panel in the closed state.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a ceiling-mounted inspection panel device showing an embodiment of this invention, FIG. 2 is an enlarged view of the main parts of the ceiling-mounted inspection panel device shown in FIG. FIG. 4 is a diagram showing the state when the inspection panel is lifted up, and FIG. 5 is a diagram showing the rotating state of the inspection panel. FIG. 6 is an enlarged view of main parts showing another embodiment of this invention, and FIG. 7 is a configuration diagram of a conventional ceiling-mounted inspection panel device. In these figures,
14 is a ceiling opening, 13a is a rising portion, 13 is a panel frame, 18 is an insertion hole, 16 is a fulcrum side support shaft,
13b is the inner space of the panel frame, 15 is the inspection panel, 15b is the center of gravity of the inspection panel, 27 is the through hole, 26 is the support portion, 24 is the engaging portion, 25 is the support hole, 23 is the opening/closing side support shaft, 21a The hooking set portion 21 is a hooking member. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A panel frame body that is installed along the periphery of a ceiling opening and has a rising portion toward the inside of the ceiling, and an insertion hole is provided in the side surface, and the panel frame is inserted into the insertion hole. and an inspection panel that is rotatably supported on a fulcrum-side support shaft that protrudes substantially horizontally from the upright part of the body and covers the inner space of the panel frame, the inspection panel being fitted into the insertion hole. On the other hand, a through hole is provided that is located on the center of gravity side of the inspection panel and penetrates both the upper and lower sides of the inspection panel, and a hook-shaped hole is provided at one end that engages with a support part that protrudes from the rising part of the panel frame. A hooking portion is formed, and a support hole is provided at the other end, and in the support hole, the inspection panel is rotatable about an opening/closing side support shaft provided on the inspection panel in a substantially horizontal direction corresponding to the through hole. By lifting the inspection panel upward, the hook-shaped engaging part is removed from the support part, and further rotated by the moment acting around the opening/closing side support shaft, and the hook-shaped engaging part is formed on the outer side of the inspection panel. A ceiling-mounted inspection panel device comprising an engagement member whose engagement set portion passes through the through hole and is exposed downward from the lower surface of the inspection panel. (2) The ceiling-mounted inspection panel device according to claim 1, wherein the moment acting around the opening/closing side support shaft utilizes gravity acting on the center of gravity of the engaging member. (3) A utility model registration request characterized in that the moment acting around the opening/closing side support shaft utilizes the elastic force of an elastic body whose one end engages an inspection panel and the other end engages an engagement member. Scope: Ceiling-mounted inspection panel device described in item 1.