JP2003100136A - Opening/closing device of equipment installation body at ceiling part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an open/close device of an equipment installation body at a ceiling part capable of stably and largely opening the equipment installation body from any of longitudinal and lateral directions in consideration of the presence of devices therearound and a working attitude and also completely removing the equipment installation body if required. SOLUTION: The equipment installation body 7 is connected to a fixed frame 1 through a catch metal fitting 2. When the equipment installation body 7 is moved parallel with a vertical direction, a rail body 3 is rotated about a horizontal shaft 4 relative to the fixed frame 1, a slide arm 5 is rotated about a horizontal pin 6 relative to the equipment installation body 7, and the slide arm 5 is moved in and out of the rail body 3 in longitudinal direction. An attracting and holding spring member 8 is installed on the rail body 3 rotatably relative to each other, and installed on the fixed frame 1 so as to be displaced from each other. The equipment installation body 7 is rotated downward after lowering to an open position. The horizontal pin is separated from the equipment installation body 7, and the equipment installation body is removed from the catch metal fitting 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device attached to a ceiling of a building or a room, such as a lighting cover of a lighting device or an air outlet cover of an air conditioner, which is normally drawn to the device body. The present invention relates to an opening / closing device for a device attachment in a ceiling part, which is attached and held and is opened and rotated downward so as not to hinder the work when inspecting and maintaining the device or replacing consumables.

[0002]

2. Description of the Related Art In a lighting cover opening / closing device disclosed in Japanese Patent Laid-Open No. 11-96827, a fixing frame is horizontally fixed to a device body or a ceiling member around the device body.
The lighting cover is arranged so as to be vertically movable with respect to the fixed frame, and the vertical plate part of the support plate for the lighting cover is fixed to two front and rear sides of the fixed frame in the longitudinal direction, and the horizontal plate part of the support plate is fixed. A spring receiving slot that is long in the protruding direction of the horizontal plate is formed in the center, and a spring member for supporting the lighting cover, which is folded into two in a V shape at the center, The two linear portions of the V-shaped spring member constituting the torsion spring are inserted into the slots of the support plate. The two linear portions of the V-shaped spring member are set so that the mutual opening angle is the largest when the lighting cover is at the highest position and the mutual opening angle is the smallest when the lighting cover is at the lowest position. Has been done.

In the lighting cover opening / closing device configured as described above, the lighting cover is normally attracted to the horizontal plate portion of the support plate of the fixed frame by the V-shaped spring member, and the lighting cover of the fluorescent lamp of the lighting fixture is fixed. The accommodation space is tightly closed by a lighting cover. When replacing the fluorescent tube, V
The lighting cover is pulled down by hand against the elastic force of the character-shaped spring member, and the lighting cover is lowered parallel to the fixed frame. When the V-shaped spring member reaches the open position, which is the most lowered position, the stopper portion, which is formed in a curved shape at the tip of the linear portion of the V-shaped spring member, abuts the edge portion of the slot. As a result, a working space having a certain height is formed between the lighting cover and the fixed frame, and the fluorescent tubes are replaced by inserting a hand from the side of the working space. After the work is finished, the lighting cover is pushed up by a hand to be lifted, and is attracted and held in the closed position by the elastic force of the V-shaped spring member.

The lighting cover opening / closing device using the V-shaped spring member has a simple structure and thus has a low manufacturing and assembling cost and is widely used.
When the lighting cover is raised and returned to its original closed position, it is not easy to control the movement of the lighting cover in the vertical direction. However, there is a problem in that the position of the lighting cover is uncertain, and the positioning of the lighting cover and the fixed frame cannot be performed smoothly.

In addition, when lowering the lighting cover,
If the lighting cover is pulled down excessively, the stopper portion formed into a curved shape may be deformed in the radial contraction direction and come out of the slot of the support plate, which may cause the lighting cover to drop and cause an unexpected accident. there were.

Furthermore, since the descent stroke of the lighting cover obtained by closing the two straight portions of the V-shaped spring member has a certain limit, it is not a simple replacement of the fluorescent tube but an inspection of the lighting fixture body. There is also a problem that it is difficult to work because the working space is small when performing repairs or the like.

On the other hand, in the lighting cover opening / closing device disclosed in Japanese Unexamined Patent Publication No. 2000-106025, a plurality of rod-shaped guides intersecting the fixed frame at a right angle are prepared, and the guides are used to fix the fixed frame. The lower end of the guide is horizontally connected to a connecting fitting fixed to the left and right ends of the lighting cover by a fixed pivot pin or a retractable pin.

In this lighting cover opening / closing device, since the lighting cover always moves horizontally in the vertical direction with respect to the fixed frame due to the presence of the guide, the lighting cover is pushed up to the closed position and returned to the lighting position. There is no problem of tilting of the cover or blurring in the front, rear, left and right directions, and there is no problem of alignment between the lighting cover and the fixed frame.

As a means for attaching the guide to the connecting fitting of the lighting cover, when a fixed pivot pin is used on one of the left and right sides, a pullable pin is used on the other side. Therefore, the pullable pin is pulled out. Thus, the lighting cover can be rotated downward about the fixed pivot pin. As a result, a relatively large working space is secured, so that the fluorescent tube can be replaced and the luminaire main body can be inspected and repaired relatively easily.

However, in this lighting cover opening / closing device, the pivot pin, which is the center of rotation of the lighting cover, is fixed to the specific guide or the connecting fitting, so that the work position for opening the lighting cover is on the left or right side. It will be limited. Also, since the pivot pin is not configured to be pulled out from the guide or the connecting metal fittings, even if the lighting cover can be rotated downward, the lighting cover cannot be separated and removed from the guide, and the lower surface side of the lighting fixture is moved back and forth. It is not possible to open the entire surface in each of the left and right directions.

[0011]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to make it possible to set the height of the working space with stability and higher even if the V-shaped spring members having the same length are used. It is an object to provide a switchgear for a device attached body in a section. Another object of the present invention is to stabilize the attachment of the equipment from any of the front, back, left and right directions, while taking advantage of the attraction and holding function of the V-shaped spring member, while considering the existence of objects and work postures in the vicinity. An object of the present invention is to provide a device opening / closing device for a device attached to a ceiling part, which can be widely opened with good performance. Another object of the present invention is to provide an opening / closing device for a device-attached body in a ceiling part, which can completely remove the device-attached body as necessary, thereby ensuring a remarkably large working space. Is.

[0012]

[MEANS FOR SOLVING THE PROBLEMS] Hereinafter, referring to the attached drawings, a switch for a device attached body in a ceiling part according to the invention of claim 1 is a device main body or a device mounted on a ceiling member. The fixed frame 1 fixed horizontally to the ceiling member around the main body, and the base end of the rail main body 3 are connected to the front, rear, left and right sides of the fixed frame 1 by the horizontal shaft 4,
The front end of the slide arm 5 inserted into the rail body 3 is connected to each of the front, rear, left and right sides of the equipment attachment body 7 by the horizontal pin 6, and the rail body 3 is fixed around the horizontal shaft 4 as the fixed frame 1.
And the slide arm 5 rotates about the horizontal pin 6 with respect to the device attachment body 7.
By moving in and out in the length direction of the rail body 3,
The device attachment 7 is attached to the catch metal fitting 2 configured to move in parallel to the fixed frame 1 in a vertical direction and the rail body 3 of the catch metal fitting 2 so as to be rotatable relative to each other. The attracting / holding spring member 8 is attached to the side portion so as to be relatively displaceable, and applies an elastic force in a direction of attracting the device attachment body 7 to the fixed frame 1 or the device body.

According to the second aspect of the present invention, in addition to the structure of the first aspect of the invention, in the catch metal fitting 2, the horizontal shaft 4 and the horizontal pin 6 are fixed to the fixed frame 1 and the equipment annex. Some of them are arranged in parallel with the axis line in the front-rear direction of 7, and some of them are arranged with the horizontal shaft 4 and the horizontal pin 6 in parallel with the left-right axis lines of the fixed frame 1 and the equipment attachment 7. Regarding the catch fittings 2 other than the specific set of the catch fittings 2H arbitrarily selected, when the device attachment 7 is lowered to the open position, the connection between the horizontal pin 6 and the device attachment 7 is released, Regarding the specified set of catch fittings 2H, when the device attachment body 7 descends to the open position, the connection between the horizontal pin 6 and the device attachment body 7 is not released, and the fixed frame 1 and the device attachment body 7 are not disconnected. The device attachment 7 is rotated downward about a horizontal pin 6 that is parallel to the longitudinal axis or the lateral axis.

According to a third aspect of the present invention, there is provided a switchgear for a device-attached body, wherein the device-attached body 7 is provided.
Is rotated downward about the horizontal pin 6 at the open position, and then the connection between the horizontal pin 6 and the device attachment 7 is set to be released.

According to the fourth aspect of the present invention, there is provided a switchgear for a device-attached body, wherein, in addition to the above-mentioned structure of the first, second or third aspect of the invention, the catch metal fitting 2 extends beyond the rail main body 3 by a certain length. A mechanism 9 for stopping the slide arm 5 at the extended position is provided, and a spring hook portion 10 for supporting the attracting and holding spring member 8 is provided on the outer side surface portion of the rail body 3, and the device attachment body 7 is provided. A pin receiving groove 12 into which the horizontal pin 6 is engaged and disengaged is formed in the metal plate 11 to be fixed.
Horizontally is a stopper lever 1 attached with a pivot pin 13.
Reference numeral 4 is rotationally biased by a lever spring member 15 in a direction of abutting on a side surface of the horizontal pin 6 engaged with the pin receiving groove 12. The attracting and holding spring member 8 is fitted in the spring hooking portion 10 of the catch metal fitting 2 so as to be relatively rotatable.
a and the coil portion 8a formed continuously with the coil portion 8a.
2 rise up in a V shape on both sides of and are inserted into the slots 17 of the spring guide 16 provided in the fixed frame 1 so as to be relatively displaceable.
The linear springs 8b and 8c are formed of a torsion spring, and the two linear parts 8b and 8c of the attracting and holding spring member 8 have an opening angle relative to each other when the device attachment 7 rises to the closed position. Is the largest, and the mutual opening angle is set to be the smallest when the equipment attachment 7 descends to the open position.

According to the fifth aspect of the present invention, in addition to the structure of the fourth aspect of the present invention, in the opening / closing device for a device attachment, a through hole 18 is provided in the metal receiving plate 11 of the catch metal fitting 2, and the stopper lever 14 is provided.
The stopper lever 14 is provided with a through hole 19 which is aligned with the through hole 18 of the receiving plate 11 when the position of the pin comes off the side surface of the horizontal pin 6, and the blocking member 20 such as a pin is provided in the two through holes 18 and 19. The stopper lever 14 is set so as to be inserted and restrained at the standby position.

[0017]

In the switchgear according to the first aspect of the present invention, when the equipment attachment 7 is in the closed position closest to the ceiling surface (not shown), the equipment attachment is performed as shown in FIGS. The body 7 is attracted to the fixed frame 1 or the device body (not shown) by the elastic force of the V-shaped attraction and holding spring member 8. When the device attachment body 7 is held by hand and the device attachment body 7 is pulled downward, the rail body 3 rotates about the horizontal shaft 4 with respect to the fixed frame 1, and the slide arm 5 moves around the horizontal pin 6 as the device. By rotating with respect to the attachment body 7 and the slide arm 5 extending in the length direction of the rail main body 3, the equipment attachment body 7 is moved away from the fixed frame 1 and translated downward. When the slide arm 5 reaches the extension limit, the descent of the equipment attachment 7 is stopped, and a working space having a constant height is formed between the fixed frame 1 and the equipment attachment 7.

Unlike the conventional device in which the V-shaped spring member is directly attached to the equipment attachment, in the device of the present invention, the V-shaped spring member 8 is mounted on the rail main body 3 of the catch metal fitting 2 and attached to the equipment attachment. Since 7 is attached to the slide arm 5 fitted to the rail body 3 so as to be able to extend, the height of the working space is smaller than that under the condition where the V-shaped spring member 8 having the same length is used. Significantly higher. Therefore, for replacement of the fluorescent tube or inspection and repair in the vicinity of the outer peripheral portion of the working space, the required work can be directly performed without rotating the device attachment 7 downward.

In the switchgear according to the second aspect of the present invention, in order to secure a wider working space, the horizontal pins 6 of the specific set of catch fittings 2H act as hinge pins to move the equipment attachment 7 from the lowered position. Rotate downward. In that case, taking into consideration the existence position and working posture of the surrounding equipment, centering on either the rotation axis parallel to the longitudinal axis of the equipment attachment 7 or the rotation axis parallel to the left-right axis. Determine in advance if it is best to rotate downward. For example, when it is optimal to rotate about a rotation axis that is parallel to an axis that is parallel to the longitudinal axis, among the catch fittings that are connected to the left and right sides 7a and 7b of the device attachment 7, One of them is set as the identified set of catch fittings 2H.

As shown in the drawing, when one of the catch fittings connected to the left and right sides 7a and 7b of the device attachment 7 on the far side is selected as the specified set of catch fittings 2H, As shown in 4, the equipment attachment 7
First, all of the catch fittings 2 connected to the side portions 7c and 7d on both front and rear sides are removed from the equipment attachment 7. next,
Among the catch metal fittings connected to the left and right sides 7a and 7b of the equipment attachment body 7 as shown in FIG. 7, with the hand attached to the lower surface of the equipment attachment body 7 to support the equipment attachment body 7 underneath. The one on the front side is removed from the device attachment 7.

Then, the catch metal fittings 2H connected to the inner sides of the side portions 7a, 7b on both the left and right sides of the equipment attachment body 7 are provided.
Functions as a hinge, and the device attachment 7 is a catch fitting 2
It rotates downward by its own weight around the H horizontal pin 6. This downward rotation is performed after the equipment attachment 7 has descended by one step, so that even in an application example in which the equipment attachments 7 are closely or densely installed in the front-rear, left-right direction, adjacent equipment attachments interfere with each other. There is nothing to do. The equipment attachment 7 rotates downward and is vertically held as shown in FIG. 7, whereby the lower surface side of the fixed frame 1 is entirely opened, and a wider working space is secured.

According to the opening / closing device of the invention of claim 3,
In the switchgear of the invention of claim 1, after the equipment attachment 7 is rotated downward, the horizontal pin 6 is pulled out from the specific set of catch fittings 2H functioning as a hinge, and the equipment attachment 7
Is removed from the catch metal fitting 2H. Therefore, in the working space formed on the lower surface side of the fixed frame 1, there are no obstacles in all the front, rear, left and right directions, and a remarkably wide working space is created.

In the opening / closing device of the fourth aspect of the present invention, when the slide arm 5 extends from the rail body 3 by a certain length, the stop mechanism 9 of the slide arm 5 operates, so that the slide arm 5 is removed from the rail body 3. It does not come off or the V-shaped spring member 8 does not come off from the spring guide 16 of the fixed frame 1. When the device attachment body 7 moves in parallel to the fixed frame 1 in the vertical direction, the V-shaped spring member 8 is centered on the spring hooking portion 10 of the rail body 3 on which the coil portion 8a is hooked, with respect to the rail body 3. It rotates relative to each other, and the two straight portions 8b,
The V-shaped spring member 8 is displaced relative to the fixed frame body 1 in the length direction by slidingly contacting the inner wall surface of the slot 17 of the spring guide 16 with 8c.

When the equipment appendage 7 is descending horizontally with respect to the fixed frame 1, the horizontal pins 6 of the catch fittings 2 and 2H are both in the pin receiving grooves 12 of the receiving plate 11 of the equipment appendage 7. Engaged. The tip portion 14a of the stopper lever 14 is in contact with the side surface portion of the horizontal pin 6, and the lever urging spring member 15 maintains the engagement state between the horizontal pin 6 and the stopper lever 14. 2, 2H and the equipment attachment 7 are restrained in a connected state.

In the opening / closing device according to the invention of claim 4 based on the invention of claim 1, the fluorescent lamp replacement work is performed without operating the stopper lever 14 at all. In the switchgear according to the invention of claim 4 based on the invention of claim 2, the stopper lever 14 resists the urging of the spring member 15 and the horizontal shaft 13 after the device attachment body 7 is lowered to a predetermined open position. Is rotated to the release position, and the restraint of the horizontal pin 6 to the receiving plate 11 is released. After that, the horizontal pin 6 is made to escape from the pin receiving groove 12 of the receiving plate 11 by pushing it with a finger or the like. Therefore, the device attachment body 7 rotates downward as shown in FIGS. 7 and 14 by its own weight around the horizontal pin 6 of the catch fitting 2H that functions as a hinge.

In the switchgear according to the invention of claim 4 based on the invention of claim 3, after the downward rotation of the above-mentioned equipment attachment 7, the stopper lever 14 of the catch metal fitting 2H acting as a hinge is the same as above. The horizontal pin 6 is turned to the release position, and the horizontal pin 6 is pulled out from the pin receiving groove 12 of the receiving plate 11.
As a result, the equipment attachment 7 is removed from the catch metal fitting 2H as shown in FIG.

In the opening / closing device of the fifth aspect of the invention, when the stopper lever 14 comes to the position where it is separated from the side surface portion of the horizontal pin 6, the through hole 18 of the receiving plate 11 and the stopper lever 14 are provided.
Since the through holes 19 are aligned, the stopper lever 14 is constrained to the retracted position as shown in FIGS. 13 and 15 by inserting the blocking member 20 such as a pin into the through holes 18 and 19.

[0028]

In the illustrated embodiment, the fixing frame 1 has a rectangular shape in a plan view, and two mounting brackets 21 for catch metal fittings are provided on each of the left and right side portions 1a and 1b, and the front and rear side portions. Two are provided in 1c and 1d. As shown in FIGS. 8 and 9, an angle member is used as the mounting bracket 21, and its vertical plate portion 21a is fastened and fixed to each side portion with a screw 22. An arm plate 23 is pivotally attached to a base end portion of the rail body 3 by a horizontal shaft 4, and a horizontal bent plate portion 23b of the arm plate 23 is fixed by a screw 24 to a horizontal plate portion 21b of a mounting bracket 21. Has been done.

The spring guide 16 includes side portions 1a, 1 on both the left and right sides.
Two are provided at b and two are provided at the front and rear sides 1c and 1d. As shown in FIGS. 8 and 9, the vertical plate portion 16a of the spring guide 16 is fastened and fixed to each side portion by a screw 25. The horizontal plate portion 16b of the spring guide 16 is formed with slots 17 which are long in the length direction of each side portion. When the device attachment body 7 is at the highest position, the slot 17 has two linear portions 8 of the attracting and holding spring member 8.
The root portions of b and 8c and the half of the coil portion 8a are inserted.

The equipment attachment 7 has a rectangular plan view,
Two receiving plates 11 are provided on the left and right sides 7a and 7b, and two on the front and rear sides 7c and 7d. 10 and 11
As shown in FIG. 5, the lower end portion of the receiving plate 11 is fastened and fixed to each side portion with a screw 26. A curved pin receiving groove 12 is formed in an upper portion of the metal receiving plate 11 protruding from the side portion, and an inlet portion 12a of the pin receiving groove 12 is formed in the metal receiving plate 11.
The innermost portion 12b of the pin receiving groove 12 that is open to the upper side portion and that engages with the horizontal pin 6 is located slightly above the lowest surface portion 12c.

Therefore, even if the horizontal pin 6 is not pressed by the tip of the stopper lever 14, the horizontal pin 6 is automatically guided to the innermost part 12b of the pin receiving groove 12 as shown in FIG. It is engaged and held in its engaged position by the weight of the device attachment 7. When removing the horizontal pin 6 from the receiving groove 12, while pushing the device attachment 7 up and supporting it, the enlarged head of the horizontal pin 6 is pushed with a finger to push the horizontal pin 6 to the lowest surface portion 12c, and finally. Escape from the entrance 12a.

The pivot pin 13 of the stopper lever 14 is
A torsion spring is used as the lever biasing spring member 15 at a position biased obliquely above the innermost portion 12b of the pin receiving groove 12, and one linear portion 15b continuous to the coil portion 15a is used. Receiving hole 27 formed in receiving plate 11
The other straight portion 16c is hooked in the receiving hole 28 formed in the stopper lever 14.

Two linear portions 8b, 8c of the spring member 8
The stopper portions 8d and 8e are bent and formed in a U-shape at the tip end portion of the spring guide 16 on the upper surface of the horizontal plate portion 16b of the spring guide 16 when the equipment attachment 7 reaches the lowest position. It abuts and prevents the straight portions 8b and 8c from coming out of the slot 17. Catch metal fittings 2, 2
The H spring hooking portion 10 is made of a bar material whose upper and lower ends are bent in a U shape and is welded to the rail body 3. The stop mechanism 9 of the slide arm 5 includes a transverse pin 9 a fixed to the slide arm 5 and a screw 29 on the inner side surface of the rail body 3.
It is composed of a fixed block 9b fixed by.

The through hole 18 and the stopper lever 1 are formed in the receiving plate 11.
The through hole 19 of 4 is the pivot pin 13 of the stopper lever 14.
Are provided on the same arc centered at
A pin is used as 0. The shape of the fixed frame 1 and the device attachment 7 in plan view is not limited to a rectangle, and can be various shapes such as a square, an octagon, a circle, and an ellipse. Further, by inserting a cushioning packing member into the contact surface between the fixed frame body 1 or the device main body and the device attachment body, it is possible to more effectively prevent light leakage and dust intrusion. The device attachment of the present invention is not limited to a lighting cover of a lighting fixture, but can be applied to a blowout port cover of an air conditioner or the like.

The number of catch fittings 2 pivotally mounted on the front and rear and right and left sides of the fixed frame 1 and on the front and rear and left and right sides of the device attachment 7 by the horizontal shaft 4 and the horizontal pin 6, respectively, are to be connected. The size is appropriately increased or decreased depending on the size of the plane size of the equipment attachment 7. Since any one of the plurality of sets of the catch fittings is selected to function as the hinge, the catch fittings at the position with high probability of being selected as the hinge, that is, the catch fittings of the pairs facing each other at both ends in the front-rear direction. With respect to the pair of catch fittings facing each other at the positions of both ends in the left-right direction, the horizontal shafts 4 and the horizontal pins 6 are aligned on the same straight line so that the device attachment 7 can be rotated downward. Need to be

[0036]

According to the first aspect of the present invention, the rail main body of the catch fitting is connected to the front, rear, left and right sides of the fixed frame by the horizontal axis, and the attracting and holding spring member is attached to the rail main body 3 so as to be relatively rotatable. On the other hand, it is attached to the front, rear, left, and right sides of the fixed frame so that they can be displaced relative to each other, and the device attachment is connected to the slide arm of the catch metal fitting by a horizontal pin, and the device attachment is parallel to the fixation frame in the vertical direction. When moving, the rail body rotates about the horizontal axis with respect to the fixed frame, the slide arm rotates about the horizontal pin with respect to the equipment attachment, and the slide arm moves in and out in the length direction of the rail body. Therefore, it is possible to set the height of the working space formed between the fixed frame and the equipment attachment higher than when directly attaching the attraction holding spring member to the equipment attachment. Can It is possible to perform replacement work and simple inspection and repair of parts such as the fluorescent tube of the main body of the equipment while keeping the attachment of the equipment in the horizontal lowered position. Also, since the device attachment is attached to the fixed frame by the catch metal fittings connected to the peripheral part, the posture of the equipment attachment is maintained in the closed position, the open position, and in the middle of opening and closing due to the movement restricting action of the catch metal attachment. Is stable, and it is possible to easily open and close the device attachment without worrying about the alignment of the fixed frame and the device attachment.

In addition to the effect of the invention of claim 1, the switchgear of the invention of claim 2 has the following effect. That is,
As the catch metal fitting, the horizontal shaft and the horizontal pin are arranged in parallel with the longitudinal axis of the fixing frame and the device attachment, and the horizontal axis and the horizontal pin are the horizontal axis of the fixing frame and the device attachment. And those arranged in parallel exist,
For the catch fittings other than the specific set of arbitrarily selected catch fittings, when the device attachment is lowered to the open position, the connection between the horizontal pin and the equipment attachment is released while the specified set With regard to the catch metal fitting of (1), when the equipment attachment is lowered to the open position, the equipment attachment is rotated downward about the horizontal pin without disconnecting the connection between the horizontal pin and the equipment attachment. The lower surface side of the fixed frame is opened in three directions, so that a wider working space can be created. In addition, the downward rotation of this equipment attachment can be performed from either the front, back, left, or right of the fixed frame. It can be opened and the required work can be performed quickly and accurately.

According to the opening / closing device of the invention of claim 3,
In addition to the effects of the invention of claim 1, after rotating the device attachment body downward in the open position about the horizontal pin, by disconnecting the connection between the horizontal pin and the device attachment body, all the device attachment catches. Since it was removed from, there are no obstacles in either the front, back, left or right direction,
It is possible to create a work space that is open in all directions.

According to the opening and closing device of the invention of claim 4,
In addition to the effect of the invention of claim 3, a stopper lever capable of restraining the horizontal pin of the catch fitting in a state of being engaged with the pin receiving groove of the receiving plate of the equipment attachment is pivotally attached to the receiving plate. Therefore, the operation of connecting and disconnecting the catch fitting and the device attachment can be performed easily and accurately. Further, since the coil portion of the attraction holding spring member is engaged with the spring hook portion provided on the rail main body, the two straight portions of the attraction holding spring member are inserted into the slots of the spring guide of the fixed frame. The relative rotation operation of the attracting and holding spring member with respect to the catch metal fitting and the relative displacement operation with respect to the fixed frame are smoothly performed, and the two linear portions of the attracting and holding spring member are moved in accordance with the vertical position of the equipment attachment. The mutual opening angle can be increased or decreased appropriately, so that the equipment attachment can be securely attracted to and held by the fixed frame, light leakage can be prevented when applied to lighting equipment, and dust intrusion can be prevented appropriately. You can also

According to the invention of claim 5, in addition to the effect of the invention of claim 4, when the stopper lever comes to a position separated from the side surface of the horizontal pin, the through hole of the receiving plate and the through hole of the stopper lever are provided. Since the stopper lever is constrained to the retracted position by inserting a blocking member such as a pin into it, the work of reconnecting each catch fitting to the accessory body can be done smoothly without being disturbed by the stopper lever. I can do it.

[Brief description of drawings]

FIG. 1 is a schematic exploded perspective view of a switchgear according to an embodiment of the present invention.

FIG. 2 is a front view more specifically showing the switchgear of FIG. 1, in which the equipment attachment is raised to a closed position.

FIG. 3 is a front view more specifically showing the switchgear of FIG. 1, in which the device attachment is lowered to an open position.

FIG. 4 is a front view more specifically showing the switchgear of FIG. 1, in which catch fittings other than a specific set of catch fittings are disconnected from the device attachment.

5 is a left side view more specifically showing the switchgear of FIG. 1, in which the device attachment body is raised to a closed position.

FIG. 6 is a left side view more specifically showing the switchgear of FIG. 1, in which the device attachment is lowered to the open position.

FIG. 7 is a left side view showing the opening / closing device of FIG. 1 more specifically, and the device attachment body is rotated downward.

8 is an enlarged view of a left end portion of the opening / closing device of FIG.

9 is a view taken along the line AA of FIG.

10 is an enlarged view of a left end portion of the opening / closing device of FIG.

11 is a view taken along the line BB of FIG.

FIG. 12 is an enlarged view showing a connected state of the catch fitting and the device attachment body in the opening / closing device of FIG. 3.

FIG. 13 is an enlarged view showing a process of releasing the connection between the catch fitting and the device attachment body in the opening / closing device of FIG.

FIG. 14 is an enlarged view showing a connected state of the catch fitting and the device attachment body in the opening / closing device of FIG. 7.

FIG. 15 is an enlarged view showing a process of releasing the connection between the catch fitting and the device attachment body in the opening / closing device of FIG. 7.

16 is a partially cutaway front view of a catch fitting used in the opening / closing device of FIG. 1. FIG.

FIG. 17 is a plan view of the catch metal fitting of FIG. 16.

FIG. 18 is a left side view of the catch metal fitting of FIG. 16.

19 is a partially cutaway front view of another catch fitting used in the opening / closing device of FIG. 1. FIG.

20 is a plan view of the catch metal fitting of FIG. 19. FIG.

21 is a left side view of the catch metal fitting of FIG. 19. FIG.

[Explanation of symbols]

1 fixed frame 2 catch metal fittings 3 Rail body 4 horizontal axis 5 slide arm 6 horizontal pins 7 Equipment attachment 8 Spring member for attracting and holding 9 stop mechanism 10 Spring hook 11 Money Plate 12 pin receiving groove 13 Axis pin 14 Stopper lever 15 Lever spring member 16 Spring guide 17 slots 18 through holes 19 through holes 20 Blocking member

Claims (5)

[Claims] 1. A fixed frame that is fixed horizontally to a device body mounted on a ceiling member or a ceiling member around the device body, and a base end of the rail body is attached to the front, rear, left, and right of the fixed frame by a horizontal axis. The tip of the slide arm that is connected to the side and is inserted into the rail body is connected to the front, rear, left, and right sides of the equipment attachment body by horizontal pins, and the rail body rotates around the horizontal axis with respect to the fixed frame. Then, the slide arm rotates about the horizontal pin with respect to the device attachment body, and the slide arm moves in and out in the length direction of the rail main body, whereby the device attachment body moves in parallel in the vertical direction with respect to the fixed frame. The catch metal fittings and the rail body of the catch metal fittings are rotatably mounted relative to each other, and are attached to the front, rear, left and right sides of the fixed frame so that they can be displaced relative to each other. Consisting of attracted holding spring member that applies an elastic force in a direction to attract to the main body, switchgear equipment Fusetsu body in the ceiling portion. 2. The catch metal fitting, wherein the horizontal axis and the horizontal pin are arranged in parallel with the longitudinal axis of the fixing frame and the equipment attachment, and the horizontal axis and the horizontal pin are provided in the fixing frame and the equipment attachment. Some catch fittings are arranged parallel to the left-right axis of the body, and except for one set of arbitrarily selected catch fittings, when the accessory body descends to the open position, the horizontal pin and equipment While the connection with the attachment body is released, regarding the set of specified catch metal fittings, when the equipment attachment body is lowered to the open position, the connection between the horizontal pin and the equipment attachment body is not released and the horizontal The device attachment can be rotated downward about the pin.
The switchgear for the equipment attached body according to. 3. The device attachment according to claim 2, wherein after the device attachment body rotates downward about the horizontal pin in the open position, the connection between the horizontal pin and the device attachment body is released. Body opening and closing device. 4. The catch fitting is provided with a mechanism for stopping the slide arm at a position extended from the rail body by a certain length, and an attracting and holding spring member is relatively rotatable on the outer side surface of the rail body. There is a spring hook that is engaged and supported, and a pin receiving groove that engages and disengages horizontal pins is formed in the receiving plate that is fixed to the equipment attachment body, and is attached to the receiving plate with a horizontal pivot pin. The stopper lever is urged to rotate by the lever spring member in the direction of abutting the side surface of the horizontal pin engaged in the pin receiving groove, and the attracting and holding spring member rotates relative to the spring hook portion of the catch fitting. A coil part that can be fitted, and two linear parts that are formed continuously from the coil part and that rise up in a V shape on both sides of the coil part and that are inserted through slots of spring guides provided in the fixed frame so as to be relatively displaceable. Consisting of The two linear parts of the spring member for attracting and holding have the largest mutual opening angle when the device attachment is raised to the closed position, and the device attachment is lowered to the open position. The opening / closing device for the equipment attached body according to claim 1, 2 or 3, wherein the opening angle between them is set to be the smallest. 5. A stopper plate is provided with a through hole which is provided with a through hole in the catch plate of the catch fitting, and which aligns with the through hole of the catch plate when the stopper lever comes to a position separated from the side surface of the horizontal pin. The opening / closing device for an apparatus attachment according to claim 4, wherein a stopper member such as a pin is inserted into the two through holes to constrain the stopper lever to a standby position.