JP5180774B2 - Optional member mounting structure - Google Patents

Description

  The present invention relates to an option member mounting structure in which an optional member such as a lighting fixture can be easily mounted on the lower surface of a structure such as a shelf board.

  When attaching a lighting fixture such as a fluorescent lamp that irradiates the top plate of the desk to the lower surface of the shelf placed in front of the desk used in the office work space, conventionally, the lighting fixture is placed on the lower surface of the shelf. In general, a mounting screw is inserted from below into a mounting hole provided in the lighting fixture, and the lighting fixture is screwed to the lower surface of the shelf board.

  In such a method of mounting a lighting fixture, the operator must hold the lighting fixture with one hand against the shelf during work, and is stable when the lighting fixture is large and heavy. Not only is the workability difficult, but also there is a risk of dropping the luminaire during work.

In order to eliminate the above problems, the lighting fixture is temporarily locked and held on the head of the mounting screw temporarily fixed to the lower surface of the shelf board, and then the mounting screw is finally tightened with a tool. There is an attachment structure in which a lighting fixture is attached to the lower surface of a plate (see, for example, Patent Document 1 related to the application of the present applicant).
JP 2005-65916 A

  Although the mounting structure described in Patent Document 1 does not require the operator to hold the lighting fixture with one hand and has good workability, a tool is inserted into the guide tube portion of the lighting fixture when mounting, When it is necessary to remove the light fixture for maintenance of the lighting fixture, it is necessary to insert a tool into the guide tube of the lighting fixture and loosen the mounting screw. -There is a problem that a tool is required for removal and the work is somewhat troublesome.

  In view of the above-mentioned problems of the conventional technology, the present invention provides an option member mounting structure that can be easily performed without requiring a tool for mounting / removing, and that has a simple structure. It is an object.

According to the present invention, the above problem is solved as follows.
(1) The upper end of a mounting shaft having a male threaded portion at the lower end portion and an enlarged diameter flange portion at the lower end portion is fixed to the lower surface of the structure, so that the mounting shaft can pass through an optional member, and the mounting A through hole is provided so that the optional member can be displaced laterally with respect to the shaft, and when the optional member is displaced laterally with respect to the mounting shaft on the inner surface of the through hole, the enlarged diameter flange portion is By providing a lateral groove that can be fitted, and tightening the tightening nut to the male threaded portion of the mounting shaft from below the optional member in a state where the enlarged diameter flange portion is fitted in the lateral groove. The optional member is attached to the lower surface of the structure.

With such a configuration, after fitting the through hole of the option member to the mounting shaft attached to the lower surface of the structure, the option member is displaced laterally, and the through hole is formed in the enlarged diameter flange portion of the mounting shaft. The horizontal hole provided on the inner surface of the shaft is locked, the optional member is temporarily held, and in this state, the tightening nut is screwed onto the male screw portion of the mounting shaft, and the optional member is used with a tool. Without being attached to the lower surface of the structure.
In addition, the optional member can be easily removed from the lower surface of the structure by loosening and removing the tightening nut and in the reverse order of the above.

  (2) In the above item (1), a shaft hole is provided in the center of the mounting shaft, and the mounting shaft is fixed to the lower surface of the structure with a fixing screw inserted through the shaft hole from below.

  With this configuration, the attachment shaft can be easily attached to the lower surface of the structure.

  (3) In the above item (1) or (2), the width of the short axis direction of the through hole is substantially equal to the outer diameter of the shaft portion below the enlarged flange portion of the mounting shaft, and the shaft portion is in the long axis direction. A laterally long hole adapted to be fitted to be relatively movable, and an upper end thereof, the width in the minor axis direction is substantially equal to the outer diameter of the enlarged diameter flange on the mounting shaft, and the enlarged diameter flange is A wide horizontally long hole portion that is fitted so as to be relatively movable in a long axis direction facing the same direction as the long axis of the horizontally long hole portion; A round hole portion that is substantially equal in diameter and partly aligned with the edge of the side end in the major axis direction of the wide laterally long hole portion, and the laterally long hole portion and the round hole in the wide laterally long hole portion A portion protruding laterally from the portion is defined as a lateral groove.

  With such a configuration, it is possible to prevent the displacement of the side of the mounting shaft and the through hole, that is, the lateral long hole portion in the short axis direction, and to accurately position the mounting position of the option member.

  (4) In any one of the above items (1) to (3), a through hole is provided in the attachment member provided in the option member.

  With such a configuration, it is only necessary to attach the attachment member provided with a through hole in advance to the option member, and it is not necessary to directly drill the through hole in the option member, so that the manufacturing work is facilitated.

  (5) In any one of the above items (1) to (4), when the option member is laterally displaced with respect to the mounting shaft, the tightening nut is placed on the lower surface portion of the option member aligned with the mounting shaft. A step hole is provided in which the upper part is fitted to be rotatable.

  Such a configuration facilitates positioning when the optional member is displaced laterally with respect to the structure, and ensures that the optional member is displaced laterally with respect to the structure after mounting. Even if the tightening nut is loosened, it is possible to reliably prevent the optional member from being detached from the structure and to improve safety.

  (6) In any one of the above items (1) to (5), the optional member is a lighting fixture, and the structure is a shelf board.

  With such a configuration, the lighting apparatus can be easily and quickly attached to the lower surface of the shelf board without using a tool, and can be easily removed.

  According to the present invention, it is possible to provide a mounting structure for an optional member that requires no tools for mounting and detaching, can be easily performed, and has a simple structure.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1 and FIG. 2, in this embodiment, left and right supporting both ends via brackets 2 and 2 on a pair of left and right columns 1 and 1 standing on the front of a desk (not shown). A shelf plate 3 facing the direction is a structure, and a lighting fixture 4 as an optional member is attached to the lower surface of the shelf plate 3.
Reference numeral 5 denotes a connecting rod that connects the upper ends of the left and right columns 1, 1.

As shown in FIG. 2, a pair of left and right mounting shafts 6 facing the vertical direction are fixed to the lower surface of the shelf board 3 with fixing screws 7.
As shown in FIGS. 2 and 3, the mounting shaft 6 has a cylindrical shape with a shaft hole 6a inserted through the center, and the lower end portion of the shaft portion 6b facing up and down is substantially the same as the outer diameter of the shaft portion 6b. Alternatively, the male screw portion 6c having a smaller diameter, a diameter-enlarging flange 6d at the upper end, and a diameter-enlarging flange portion 6e having a diameter smaller than that of the diameter-enlarging flange 6d are provided at a position slightly below the upper end. The upper end portion of the fixing screw 7 inserted through the shaft hole 6 a from below is screwed into the lower surface of the shelf plate 3 to be fixed to the lower surface of the shelf plate 3.

  The luminaire 4 has a fluorescent lamp 10 mounted between a pair of left and right sockets 9 (only one of which is shown in FIG. 3) projecting forward on both sides of the front surface of a rectangular tubular case body 8 facing left and right. The front and lower surfaces are covered with a translucent cover 11, and both side ends of the case body 8 and the cover 11 are covered with side covers 12, 12.

As shown in FIG. 3, block-shaped attachment members 13 are fitted to both side portions in the case main body 8 and fixed with a pair of front and rear fixing screws 14.
The attachment member 13 and the upper and lower walls of the case main body 8 are provided with through holes 15, 16, and 17 through which the attachment shaft 6 penetrates so as to be displaceable in the front-rear direction.

  As shown in FIGS. 3 and 4, the through-hole 15 has a width in the left-right direction, which is the short axis direction, substantially equal to the outer diameter of the shaft portion 6 b in the mounting shaft 6, and the shaft portion 6 b is in the longitudinal direction. A laterally long hole 15a that is fitted so as to be relatively movable in the direction, and a width in the left-right direction that is a short axis direction that is connected to the upper end thereof is substantially equal to the outer diameter of the enlarged diameter flange portion 6e of the mounting shaft 6. Equally, the length in the vertical direction is almost equal to the thickness of the enlarged diameter flange portion 6e, and the enlarged diameter flange portion 6e is fitted so as to be relatively movable in the major axis direction that is the same longitudinal direction as the major axis direction of the laterally long hole portion 15a. The wide horizontally elongated hole portion 15b is connected to the upper end of the wide horizontally elongated hole portion 15b, and the inner diameter is substantially equal to the outer diameter of the enlarged diameter flange portion 6e, and the rear end portion is aligned with the edge of the rear end of the wide elongated hole portion 15b. It consists of the round hole part 15c made to do.

  A portion of the wide horizontally long hole portion 15 b that protrudes forward from the front end of the horizontally long hole portion 15 a and the round hole portion 15 c forms a horizontal groove 15 d in the through hole 15.

The through hole 16 in the upper wall of the case body 8 has the same shape and the same core as the round hole portion 15 c of the through hole 15.
The through hole 17 in the lower wall of the case body 8 is substantially equal to the outer diameter of the short boss portion 13 a provided at the lower end of the mounting member 13, and the boss portion 13 a is fitted into the through hole 17.

  The boss portion 13a and the through hole 17 are concentric with the mounting shaft 6 when the mounting shaft 6 is positioned relatively forward in the through hole 15, and inside the boss portion 13a, A circular shallow expanded step hole 15e communicating with the lower end of the horizontally long hole portion 15a of the through hole 15 is provided.

A diameter-reduced step portion 18b provided at the upper end portion of the tightening nut 18 provided with a screw hole 18a that can be screwed into the male screw portion 6c at the lower end portion of the mounting shaft 6 is rotatable in the diameter-expanded step hole 15e. It can be fitted.
The inner diameter of the enlarged diameter step hole 15e and the outer diameter of the reduced diameter step portion 18b of the tightening nut 18 are substantially equal to each other. As a result, the horizontal position of the shelf board 3 is not shifted.
The tightening nut 18 is a urea decorative nut that can be manually rotated.

  In order to attach the luminaire 4 to the lower surface of the shelf board 3, first, after attaching the pair of left and right mounting shafts 6 with the fixing screws 7 to the lower surface of the shelf board as described above, the luminaire 4 is attached. Then, the mounting shaft 6 is lifted so as to be fitted in each of the through holes 15, 16, and 17, and the upper surface of the lighting fixture 4 comes into contact with the lower surfaces of the diameter-enlarging flanges 6 d of the left and right mounting shafts 6. Are moved rearward to engage the lateral grooves 15d of the left and right through holes 15 with the front portions of the enlarged diameter flange portions 6e of the mounting shaft 6, respectively.

  This state is a temporary holding state, and in this state, even if the hand is released from the luminaire 4, the lateral grooves 15 d of the left and right through holes 15 engage with the front portions of the enlarged diameter flange portions 6 e of the mounting shaft 6. Therefore, the luminaire 4 does not fall.

  In this state, when the screw hole 18a of the tightening nut 18 is screwed into the male screw portion 6c of the mounting shaft 6 exposed at the lower end of the through hole 15, the diameter-enlarged flange portion 6e of the mounting shaft 6 and the tightening nut are tightened. 18, the portion between the wide horizontally long hole portion 15 b of the through hole 15 and the enlarged diameter step hole 15 e of the attachment member 13 is tightened, and the lighting fixture 4 is firmly attached to the lower surface of the shelf board 3. .

  In order to remove the luminaire 4 attached to the lower surface of the shelf board 3 from the shelf board 3, the left and right clamping nuts 18 are loosened and removed, and then the luminaire 4 is moved forward so that the left and right through-holes 15 are formed. The lateral groove 15d may be removed forward from the enlarged diameter flange portion 6e of the mounting shaft 6. Then, the lighting fixture 4 can be easily removed downward from the lower surface of the shelf board 3.

  As is clear from the above, according to the mounting structure of the optional member of the present invention, no tool is required for mounting / dismounting, the work can be easily performed, and the structure can be simplified.

The present invention is not limited to the above-described embodiment, and can be implemented in various modified forms.
For example, the mounting member 13 is formed by horizontally dividing it vertically between the horizontally long hole portion 15 a and the wide horizontally long hole portion 15 b in the through hole 15, and connecting them so as to be mounted in the case body 8. Also good. If it does so, the drilling | piercing operation | work of the through-hole 15 can be performed easily.

  Alternatively, the mounting shaft 6 may be enriched, a male screw portion (not shown) may be integrally formed at the upper end thereof, and the male screw portion may be directly screwed into the lower surface of the shelf board 3.

  Furthermore, the orientation of the horizontally long hole portion 15 a in the through hole 15 may be the left-right direction, or the horizontally long hole portion 15 a may be a perfect circle having a larger diameter than the shaft portion 6 b of the mounting shaft 6.

  The present invention can be applied not only to attaching a lighting fixture to a shelf board but also to any case where a storage case or other optional members are attached to a ceiling, a wall, or other structures.

It is the perspective view which looked at the state which attached the lighting fixture which is one Embodiment of this invention to the lower surface of the shelf from diagonally forward downward. Similarly, it is an exploded perspective view. FIG. 3 is an enlarged longitudinal sectional side view taken along line III-III in FIG. 1. It is a top view of the one side part of a lighting fixture.

Explanation of symbols

1 Prop 2 Bracket 3 Shelf (Structure)
4 Lighting equipment (optional member)
5 Connecting rod 6 Mounting shaft 6a Shaft hole 6b Shaft portion 6c Male thread portion 6d Expanding flange 6e Expanding flange portion 7 Fixing screw 8 Case body 9 Socket 10 Fluorescent lamp 11 Cover 12 Side cover 13 Mounting member 13a Boss portion 14 Fixing screw 15 through hole 15a laterally long hole part 15b wide laterally long hole part 15c round hole part 15d lateral groove 15e diameter-increasing step holes 16, 17 through hole 18 tightening nut 18a screw hole 18b diameter-reduced step part

Claims (6)

  The lower end of the structure has a male threaded portion at the lower end and the upper end of the mounting shaft having an enlarged diameter flange at the middle, and the mounting shaft can pass through the optional member. Through which the optional member can be laterally displaced, and when the optional member is displaced laterally with respect to the mounting shaft, the enlarged diameter flange portion is fitted to the inner surface of the through hole. An optional member is provided by providing a lateral groove that can be formed and screwing a tightening nut to a male threaded portion of the mounting shaft from below the optional member in a state where the enlarged diameter flange portion is fitted in the lateral groove. Is attached to the lower surface of the structure.   The mounting structure for an optional member according to claim 1, wherein a shaft hole is provided in the center of the mounting shaft, and the mounting shaft is fixed to the lower surface of the structure with a fixing screw inserted through the shaft hole from below.   A laterally long hole in which the width of the short axis direction is substantially equal to the outer diameter of the shaft portion below the enlarged diameter flange portion of the mounting shaft, and the shaft portion is fitted so as to be relatively movable in the long axis direction. And the width of the short axis direction is substantially equal to the outer diameter of the enlarged flange portion of the mounting shaft, and the enlarged diameter flange portion is long enough to face the same direction as the major axis of the laterally long hole portion. A wide oblong hole portion that is fitted so as to be relatively movable in the axial direction, and is connected to the upper end of the wide oblong hole portion, and the inner diameter is substantially equal to the outer diameter of the expanded diameter flange portion, and a part of the wide oblong hole portion. It is composed of a round hole portion that is aligned with the edge of the side end in the long axis direction, and the laterally long hole portion in the wide laterally long hole portion and a portion projecting laterally from the round hole portion are lateral grooves. The mounting structure of the optional member of 1 or 2.   The attachment structure of the option member in any one of Claims 1-3 which provided the through-hole in the attachment member provided in the option member.   A step hole in which an upper portion of the tightening nut is rotatably fitted is provided at a lower surface portion of the option member that is aligned with the mounting shaft when the option member is displaced laterally with respect to the mounting shaft. 5. The optional member mounting structure according to any one of 4 above.   The optional member mounting structure according to claim 1, wherein the optional member is a lighting fixture and the structure is a shelf board.

Images