JP2002106524A - Suspension device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an inexpensive suspension device for an illuminator which permits the support performance of a hoisting accessory for support and the attachment workability of the hoisting accessory for the support to improve. SOLUTION: The top of a hoisting accessory 5 is provided with a neck (frame) 31 and a hook head 32. A longitudinal board 12 of a support 4 and a hoisting holding board 13 of the support offer a hoisting accessory through hole 21 penetrating a hook head and a neck and consecutive latching holes 26 on the bottom of the through hole 21, respectively. The hoisting accessory 5 is lowered after its top is passed through the through hole 21 and set on the support by hooking the head 32 on the latching holes 26 from above. A tool insertion hole 24 comprising a rectangular hole is provided on the both sides of the narrow width hole 23 of the through hole 21 which the neck of 31 is capable of being passed. The feature of this invention includes the latch of the hoisting accessory 5 from a support 4 by projecting the hole edge 25 of the narrow width hole 23 to the narrow width hole 23 side to narrow the width Cs of the narrow width hole 23 than the width B of the neck 31 by employing a slotted driver inserted into the insertion hole 24 after the hoisting accessory 5 is hanged and held on the hoisting holding board 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspending device used for suspending and installing a lighting fixture or other suspended object on a ceiling or the like.

[0002]

2. Description of the Related Art A hanging device used in a hanging type lighting device has a support fixed to a ceiling supporting an upper end portion of a bar-shaped hanging device and connecting a lighting device to a lower end portion of the hanging device. I have. The hanging tool has a hook head at the upper end. In the vertical plate part of the support, there is a hanging hole through which the hooking head and the lower part pass.In the hanging plate part of the support, there is a locking hole continuous with the lower end of the hanging hole. Is provided. The hanging tool is lowered after passing the upper end of the hanging tool through the hanging tool through-hole, so that the hook head is hooked on the locking hole from above and is supported by the support.

[0003] In the configuration in which the hanger is merely hung on the support as described above, if the hanger swings together with the lighting equipment due to a large earthquake or the like, there is a possibility that the hanger will come off the support due to the momentum. Conceivable.

[0004] In order to prevent such a detachment, a stopper member for closing the through hole of the hanger is attached to the support so that the hanger passes through the through hole of the hanger even if the hanger swings greatly. A configuration for preventing such a situation has been proposed. Although this configuration is effective in preventing accidental detachment, there is a problem that the cost is high because a separate stopper component is required for the support.

[0005] In addition, Japanese Utility Model Application Laid-Open No. 60-187413.
As shown in the publication, after the hanging tool is set on the support, the edge of the hanging tool through hole of the vertical plate portion of the support is bent toward the hook head side of the hanging tool, and the bent tongue piece is used. There has been proposed a suspending device having a configuration for suppressing an elevation of a hooking head.

However, in this configuration, the area to which the hooking head can pass can be increased by bending the tongue piece. In addition, when the hooking head rises due to an earthquake or the like, the tongue piece moves its lower side. It is easy to deform as a fulcrum in a direction to reduce the margin of the hook with the hook head. For this reason, the reliability of reliably assuring the support of the hanger on the support against a large sway acting in the event of a large earthquake is low. In addition, when the hanging head is passed through the hanging tool through hole and the hanging tool is attached to the support, the tongue piece that has already been bent easily becomes an obstacle, and thus the mounting work of the hanging tool is not good.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an inexpensive suspension device which can improve the support performance of the hanging tool on the support and the workability of attaching the hanging tool to the support. .

[0008]

According to a first aspect of the present invention, there is provided a hoist through hole formed by connecting a narrow hole having a width smaller than the width of the lower hole to the center of the lower end of the wide hole. A vertical plate portion having a tool insertion hole formed at least in the vicinity of at least one side of the narrow hole portion; and a suspension formed with a locking hole bent from the vertical plate portion and connected to a lower end of the narrow hole portion. A metal support having a plate portion, and a width larger than the width of the narrow hole portion and the locking hole and the width of the wide hole portion above the shaft portion narrower than the width of the narrow hole portion and the locking hole. Having a small hooking head, being hooked on the locking hole through the hanging tool through-hole, and having a rod-shaped hanging tool to which a suspended body is connected at a lower end; The edge of the hole between the tool insertion hole and the narrow hole is projected and deformed into the narrow hole so that the width of the narrow hole is forward. It is characterized in that narrower than the width of the shaft portion.

In the present invention, the use of a stopper part is not hindered in order to more reliably prevent the hanging tool from coming off from the support, and the suspended object supported by the hanging tool is other than a lighting fixture. May be used. Further, in the present invention, the width of the shaft portion of the hanging tool passed through the hanging tool through hole together with the hanging head may be smaller than the hanging head of the hanging tool, and will be described in an embodiment described later. It does not have to be concave so that it does. In addition, the hanging member may be formed by a chain or the like in the entire portion other than the upper end portion or the intermediate portion between the upper and lower ends, and when the object to be suspended is not an electric device, the hanging member has a solid shaft. May be adopted.

[0010] In the present invention, the hanging part is lowered by inserting the shaft part and the hanging head into the hanging part through-hole, thereby hanging the hanging head on the locking hole from the upper side thereof and supporting the support. It is set on the hanging plate. Thereafter, a tool such as a flathead screwdriver is inserted into the tool insertion hole and twisted toward the narrow hole side of the hanging tool through-hole, thereby narrowing the hole edge between the tool insertion hole and the narrow hole. The width of the narrow hole is made narrower than the width of the shaft of the hanging device by plastically deforming it so as to protrude into the hole, and the support of the hanging device on the support is completed.

Since the width of the narrow hole is reduced by deforming the edge of the hole as described above, even when the hanging tool is largely shaken, the shaft of the hanging tool is narrower than that. There is no danger of slipping off through the narrow hole of the hanging tool passage hole. And the hole edge which narrowed the initial width of the narrow hole after setting the hanging tool on the hanging plate part is not at a position for preventing the lifting of the hanging tool, so the hanging tool rises straight. Thus, the state in which the width of the narrow hole portion is narrowed for a long time can be reliably maintained without deformation. Also, as described above, the initial width of the narrow hole portion of the hanger through-hole where the hanger is set on the hanger plate portion has a width sufficient to pass the shaft of the hanger. Therefore, the hole edge integral with the vertical plate portion does not obstruct the setting operation.

The invention according to claim 2 is characterized in that the tool insertion hole is a long hole large enough to receive a blade of a flathead screwdriver. The present invention is excellent in that an extremely common flathead screwdriver can be used as a tool.

The invention according to claim 3 is characterized in that the tool insertion holes are provided on both sides of the narrow hole, respectively. According to the present invention, the initial width of the narrow hole can be reduced from both sides thereof, so that the width of the narrow hole can be sufficiently reduced to a width necessary to prevent detachment. The initial width of the narrow hole until the tool is supported by the support can be made wider.

Further, the invention of claims 1 to 3 includes, as in the invention of claim 4, that the suspended body is a lighting fixture.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
This will be described with reference to FIGS.

FIG. 1 is a schematic sectional view showing the structure of a lighting device provided with a suspension device according to one embodiment. In the drawing, reference numeral 1 denotes a ceiling as an installation portion, and 2 denotes a ceiling as a suspended body. The lighting fixture 3 is a suspension device.

The suspension device 3 comprises a support 4 and a suspender 5
And a support cover 6.

As shown in FIGS. 2 to 4, the support 4 made of a steel plate includes a mounting portion 11, a vertical plate portion 12, and a suspension plate portion 1.
3 The vertical plate portion 12 is a mounting portion 1 having a horizontal plate shape.
1 is bent vertically downward from one side. The suspension plate portion 13 is bent at a right angle from the lower end of the vertical plate portion 12 to form a horizontal shape, and is provided below the attachment portion 11 so as to be substantially parallel to and opposed to the attachment portion 11. Therefore, the support 4 has a substantially U-shape when viewed from the side. Attachment part 1
1 and the hanging plate portion 13 may be bent from the vertical plate portion 12 in directions opposite to each other.

The mounting portion 11 for fixing to the ceiling 1 is provided with an oval bolt through hole 15 located at the center thereof, and a plurality of bolt through holes 15 located at this end. A wood screw hole 16 is provided. Support 4
Is fixed to the ceiling by passing a suspension bolt (not shown) provided on the ceiling through a bolt through hole 15 and screwing a nut to the bolt, or a wood screw (not shown) passing through a wood screw through hole 16. ) Is fixed to the ceiling 1 by screwing it to the ceiling 1.

As shown in FIGS. 2 to 5, the vertical plate portion 12 is provided with a through-hole 21 for a hanging tool. The through hole 21 includes an upper wide hole 22 and a lower narrow hole 23.
The wide hole 22 has, for example, an upward semicircular shape, and the upper end of the narrow hole 23 is continuous with the center of the lower end of the wide hole 23.

The vertical plate portion 12 is provided with tool insertion holes 24 respectively located near both sides of the narrow hole portion 23, and a hole which can be plastically deformed between the insertion hole 24 and the narrow hole portion 23. Rim 25
Are formed. The tool insertion hole 24 is formed as an elongated hole large enough to allow a blade edge A (see FIG. 4) of a flathead screwdriver to enter with a play. In the present invention, the tool insertion hole 24 and the hole edge 25 capable of plastic deformation may be provided only on one side of the narrow hole portion 23.

The suspension plate 13 is provided with a locking hole 26. The locking hole 26 has a substantially U-shape, and the end on the vertical plate portion 12 side is connected to the lower end of the narrow hole portion 22. The width of the locking hole 26 is the same except for the rounded tip.

As shown in FIG. 1, the hanging tool 5 is made of a round pipe made of metal such as steel, and the lower end thereof is formed by using a screw (not shown) provided therein and a nut screwed to the screw. The lighting fixture 2 is connected. The lighting fixture 2 is, for example, a fluorescent lighting fixture. A power cord drawn into the lighting fixture 2 from the ceiling 1 is guided through the hanging tool 5.

At the upper end of the hanging tool 5, a neck 3 as a shaft is provided.
1 and an upper hooking head 32 are provided.
The neck portion 31 is formed by recessing the upper end of the hanging member 25 from both sides in the radial direction, the width B is smaller than the initial width C of the narrow hole portion 23, and the length is the narrow hole portion. 23 longer than the length. The hook head 32 having a larger width (diameter) D than the neck portion 31 has the same diameter as the lower portion of the hanging device 25 below the neck portion 31, and the width (diameter) D is the initial width of the narrow hole portion 23. And the width C of the locking hole 26 is larger than the width C of the
And the height of the hook head 32 is smaller than the height of the wide hole portion 22. Therefore, the hooking head 32 can pass through the wide hole 22. The hooking head 32 has a pair of pin through holes 3 opposed in the radial direction.
2 a is provided along the thickness direction of the neck portion 31.

The hanger 25 is hung on the support 4 in the following procedure. First, the upper end of the hanger 25 is opposed to the hanger through hole 21 of the vertical plate portion 12 of the support 4 fixed to the ceiling 1, and the hooking head 32 of the hanger 25 is widened. At the same time as passing through the hole 22, the neck 31 of the hanger 25 is passed through the narrow hole 23 of the hanger through hole 21. In this case, the insertion posture of the upper end of the hanger 25 into the hanger through hole 21 is shown in FIG.
, The solid arrow in the figure indicates the insertion direction,
FIG. 5A shows the relationship between the hanging tool through hole 21 and the upper end of the hanging tool 25 in the inserted state.

Next, the hanging tool 25 is lowered by its own weight, so that the hooking head 32 is hooked from above into the locking hole 26 of the hanging plate 13 of the support 4 and is set in a hanging state. .

Thereafter, as shown in FIG. 4, the blade tip A of the flathead screwdriver is set in an upright position, and this blade tip A is inserted into one of the tool insertion holes 24 of the vertical plate portion 12. 4 Twist in the direction of arrow H. The same operation is performed on the other tool insertion hole 24, though the twisting direction of the cutting edge A is opposite. Thereby, the narrow hole edges 25 between the narrow hole portion 23 of the hanging tool through hole 21 and the tool insertion hole 24 are plastically deformed so as to protrude into the narrow hole portion 23, respectively. The hole width Cs of the narrowest portion of 23 is smaller than the width B of the neck 31. The state where the narrow hole portion 23 is narrowed in this way is shown in FIGS. 3 and 5B.

As described above, the hanging tool 5 is hung on the support 4.
After that, the following stopper parts may be additionally provided as necessary. The first stopper component is the split pin 35 shown in FIG. As shown in FIG. 3, the split pin 35 is passed through the pin through hole 32a, and its tip is bent to be attached to the hooking head 32. The length of the split pin 35 in this mounted state is larger than the width C of the narrow hole 23. Therefore, the split pin 35 serves as a stopper, and the hook head 3
2 can be prevented from coming off through the through hole 21.

The second stopper component is a stopper plate 36 shown in FIG. The stopper plate 36 is connected to the vertical plate 12
Are formed from a hole closing piece 37 disposed along the back surface of the support member 13 and an engagement piece 38 bent from the lower end thereof and disposed along the upper surface of the suspension plate portion 13. A mating hole 39 is provided. The engaging hole 39 has a width slightly smaller than the width (diameter) D of the hooking head 32 and is opened at one end of the engaging piece 38. It comprises a width (diameter) D of the head 32 and a circular inner portion 39b having the same diameter.

The stopper plate 36 is inserted into the back side of the support 4 while elastically deforming the one side portion 38a of the entrance portion 39a of the engagement piece 38, so that the back portion 3
9b is engaged and held at the boundary between the hooking head 32 and the neck 31, and the hole closing piece 37 is arranged so as to close the narrow hole 23 from the back surface of the vertical plate 12 in this state. Therefore, the hole closing piece 37 serves as a stopper, and it is possible to prevent the hooking head 32 of the hanging tool 5 from coming off through the instrument through hole 21.

As described above, the split pin 35 or the stopper plate 36
It is preferable to employ at least one of them as auxiliary detachment preventing means, because the reliability of the detachment of the hanging tool 5 from the support 4 can be extremely increased. Further, these stopper parts 35 and 36 are preferable in that they can be used without requiring parts for mounting them.

The upper part of the hanger 5 is penetrated through the center of the synthetic resin support cover 6 having a hollow hemispherical shape shown in FIG. The cover 6 is movable along the axial direction of the hanger 5 and is formed to have a size that covers the entire support 4 when the upper opening edge is pressed against the ceiling 1. The support cover 6 is fixed at a position where the support 4 is covered and hidden by a set screw (not shown) screwed toward the hanging tool 5.

As described above, the hanging device 3 having the above-described configuration passes the upper end of the hanging tool 5 through the hanging tool through hole 21 of the support 4 and sets it on the hanging plate portion 13, and then inserts the tool into the tool insertion hole 24. The blade tip A of the inserted flathead screwdriver is twisted toward the narrow hole portion 23 side of the hanging tool through hole 21 so that the tool insertion hole 24 and the narrow hole portion 2 are formed.
3 is protruded into the narrow hole 23, whereby the width Cs of the narrow hole 23 is made smaller than the width B of the neck 31 of the hanging device 5. In particular, in the configuration in which the initial width C of the narrow hole portion 23 is narrowed from both sides as in the present embodiment, the width Cs required to prevent the hanging tool 5 from coming off through the narrow hole portion 23 is reduced. The narrow hole 23 can be sufficiently narrowed.

For this reason, even when the hanging tool 5 shakes greatly due to an earthquake or the like, the neck 31 of the hanging tool 5 passes through the narrow hole 23 of the hanging tool through hole 21 which is narrower than that, and comes off. There is no fear.

In addition, since the hole edge 25 for narrowing the initial width C of the narrow hole portion 23 to a smaller width Cs is not at a position for preventing the lifting of the hanging tool 5, the hanging tool 5 rises straight. Even if it is pushed by it, it will not be deformed. Therefore, the state where the width of the narrow hole portion 23 is narrowed can be reliably maintained for a long period of time, and accordingly, the performance of supporting the hanging tool 5 on the support 4 can be improved.

Then, the initial width C of the narrow hole portion 23 passes through the upper end of the hanging member 5 and the hanging member 5 is connected to the hanging plate portion 13.
Until the width of the neck 31 of the hanging tool 5 is set. Moreover, in the configuration in which the initial width C of the narrow hole portion 23 is narrowed from both sides as in the present embodiment, the narrow hole portion 23 is sufficiently narrowed to the width Cs required to prevent the hanging tool 5 from coming off. Despite this, the initial width C of the narrow hole portion 23 until the setting state is completed can be secured wider.
Therefore, when the neck portion 31 of the hanging tool 5 is passed through the narrow hole portion 23, the hole edge 25 integrated with the vertical plate portion 12 is unlikely to be an obstacle, and the neck portion 31 is easily passed through the narrow hole portion 23. Therefore, the workability of attaching the hanging tool 5 to the support 4 can be improved.

Further, since the hole edge 25 for narrowing the narrow hole portion 23 to prevent it from coming off as described above is integrated with the vertical plate portion 12,
No extra parts are required to prevent the device 5 from coming off the support 4. Therefore, it is possible to omit the auxiliary stopper part shown in FIG.
The cost of the entire hanging device 3 can be reduced.

Further, since the tool insertion hole 24 is formed as a long hole having a size enough to receive the cutting edge A of the flathead screwdriver, a very common flattened tool as a tool for projecting and deforming the hole edge 25 toward the narrow groove 23 side. Driver can be used.

Therefore, in the present embodiment, the lighting fixture 2 can improve the support performance of the hanging tool 5 on the support 4 as described above, and the workability of attaching the hanging tool 5 to the support 4 is good and inexpensive. The hanging device 3 can be reliably hung so as not to accidentally come off regardless of an earthquake or the like.

[0040]

According to the present invention configured as described above, the following effects can be obtained.

According to the first aspect of the present invention, the initial width of the narrow hole portion of the hanger through hole is set so that the hanger set on the hanger plate of the support does not pass through the hanger through hole of the support. To
Since the hole edge of this hole is deformed to make it narrower than the width of the shaft of the hanging device, there is no danger that the hanging device will come off the support when the hanging device is greatly shaken. As a result, the hole edge is not deformed, so that the support performance of the hanger on the support can be improved. Further, until the hanging tool is set on the support, the narrow hole has a width sufficient to allow the shaft of the hanging tool to pass through, so that the workability of attaching the hanging tool to the support can be improved. In addition, since the hole edge is integral with the vertical plate portion, and no extra parts are required to prevent the above-mentioned detachment, an inexpensive hanging device can be provided.

According to the second aspect of the present invention, an extremely general flathead screwdriver can be used as a tool for deforming the hole edge between the narrow hole portion and the tool insertion hole.

According to the third aspect of the invention, although the width of the narrow hole portion can be reduced from both sides thereof to a degree sufficient to prevent the hanging member from coming off, the hanging member is supported by the support. Until the width of the narrow hole can be secured wider, the workability of attaching the hanging tool to the support can be further improved.

According to the fourth aspect of the present invention, as described above, the lighting equipment is hung by the inexpensive hanging device which can improve the support performance of the hanger on the support and the workability of attaching the hanger to the support. can do.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view schematically showing a hanging-type lighting device including a hanging device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing the hanging device according to the embodiment;

FIG. 3 is a perspective view showing a state where the hanging device of FIG. 2 is assembled, with a part cut away;

4 is a perspective view showing a relationship between a tool insertion hole of a support included in the suspension device of FIG. 2 and a blade of a flathead screwdriver.

5 (A) is a front view showing the periphery of the hanging member through hole of the support provided in the hanging device of FIG. 2 before the hole edge of the narrow hole portion is deformed. FIG. 3B is a front view showing a state in which a hole edge of a narrow hole portion is deformed around a hanging tool through hole of a support included in the hanging device of FIG. 2.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 2 ... Lighting equipment (suspended body) 3 ... Hanging device 4 ... Support 5 ... Hanging tool 11 ... Mounting part 12 ... Vertical plate part 13 ... Hanging plate part 21 ... Hanging tool through hole 22 ... Wide hole part 23 ... Narrow hole 24 ... Tool insertion hole 25 ... Hole edge 26 ... Locking hole 31 ... Neck (shaft) 32 ... Hook head A ... Blade B ... Neck width C ... Initial width of narrow hole Cs ... Width of narrowed narrow hole D: Width of hook head E: Width of locking hole G: Width of wide hole

Claims (4)

[Claims] 1. A tool insertion hole formed at a central portion of a lower end of a wide hole portion with a through hole formed by connecting a narrow hole portion having a width smaller than the hole portion, and a tool insertion hole formed at least near one side of the narrow hole portion. A metal support comprising: a vertical plate portion having: a suspension plate portion bent from the vertical plate portion and formed with a locking hole connected to a lower end of the narrow hole portion; and the narrow hole portion and the engagement member. On the upper side of the shaft portion that is narrower than the width of the stop hole, the narrow hole portion and the hooking head that is wider than the width of the locking hole and smaller than the wide hole portion have A rod-shaped suspending tool that is hooked on the locking hole and that is connected to a suspended body at a lower end portion, wherein a hole edge between the tool insertion hole and the narrow hole portion has the width. A hanging device wherein the width of the narrow hole portion is made smaller than the width of the shaft portion by projecting and deforming into the narrow hole portion. 2. The suspension device according to claim 1, wherein the tool insertion hole is an elongated hole large enough to receive a blade of a flathead screwdriver. 3. The hanging device according to claim 1, wherein the tool insertion holes are provided on both sides of the narrow hole, respectively. 4. The suspension device according to claim 1, wherein the suspended body is a lighting fixture.