JP3109370U - Duct rail mounting structure and auxiliary tool used therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a duct having a mounting plate (10) attached to a mounting surface (S) such as a ceiling or a wall surface, a side plate provided with an electrode portion electrically connected to a lighting fixture, and a power cord In the rail mounting structure, the lighting fixtures can be freely installed and the location of the lighting fixtures can be freely changed according to room redesigns, product display changes, and parties.
A large-diameter hole (30) through which a head (20) of a mounting screw (2) fixed to the mounting surface (S) by screws can be inserted into a mounting plate (10) of a duct rail (1). ) And a small-diameter hole (31) that communicates with the large-diameter hole (30) and does not pass through the head (20) of the attachment screw (2). 2), a washer member (5) interposed between the head (20) and the mounting surface (S) and movably inserted into the small diameter hole (31), and the washer member (5 ) Is attached detachably, and an auxiliary tool (4) having a movement preventing member (6) fitted in the mounting hole (3) so as not to move is attached.

Description

  The present invention relates to a duct rail mounting structure for installing a lighting fixture on a ceiling, a wall surface or the like, and an auxiliary tool used therefor.

Duct rails are electrical wiring devices that can be mounted with adjustable lighting fixtures that illuminate exhibits and displays in a spot-like manner to enhance the display effect. Widely used for production.
The duct rail is usually fixed to the ceiling or wall of a venue or store, and the lighting fixture is easily attached by inserting the plug portion of the lighting fixture into an appropriate position of the duct rail and making a half turn, It can be removed. Therefore, it is possible to easily change the lighting effect by adjusting the position, number, type, etc. of the lighting fixtures according to the exhibits, the exhibition contents, the product concept, and the production method.
In recent years, there are many households that attach the duct rail to the ceiling or wall during renovation so that the position, number, type, brightness, etc. of lighting fixtures can be freely adjusted according to the arrangement of furniture, lifestyle, and season. New houses that employ duct rails as lighting fixtures for home use are also increasing year by year.

However, the duct rail is a linear or curved member having a predetermined length, and the lighting fixture is movably attached only in the longitudinal direction of the duct rail. The lighting fixture cannot be installed, and the installation range of the lighting fixture is limited to the mounting position of the duct rail.
The duct rail is usually fixed to the ceiling or wall surface with mounting screws, or is mounted in a configuration embedded in the wall surface material in advance, so it is difficult to move, and the duct rail can be removed with a tool or the like However, since it is necessary to prepare an electrical wiring for supplying electricity to the destination, it cannot be easily moved.
In places where the position of lighting fixtures is changed every short period, such as exhibition halls and retail stores, it is possible to consider installing a plurality of duct rails on the ceiling or wall surface in advance, assuming the placement of the lighting fixtures. The remodeling of the house is performed every long period (it is possible that the redesign is not performed), and it is not practical to install a plurality of duct rails assuming the redesign. In addition, it is both cumbersome and uneconomical to perform electrical work that changes the position of the duct rail each time the pattern is changed.
For this reason, there are many cases in which furniture such as tables and desks that require lighting is changed without moving from the bottom of the duct rail, and the adoption of the duct rail limits the degree of freedom in the arrangement of the furniture, and the furniture is changed as desired. There is also the problem of being unable to do so.
The present invention has been made in view of the above circumstances, so that lighting fixtures can be freely installed and the positions of the lighting fixtures can be freely changed according to room redesigns, product display changes, parties, etc. The challenge is to make it.

(1) The duct rail mounting structure according to the first aspect of the present invention includes: a mounting plate attached to a mounting surface such as a ceiling or a wall surface, and an illumination that is upright from both ends in the width direction of the mounting plate. A duct rail mounting structure having a side plate in which an electrode part electrically connected to a plug part of an instrument is provided along a longitudinal direction, and a power cord for supplying electricity to the electrode part,
The mounting plate has a large-diameter hole through which a head of an attachment screw fixed to the surface to be attached can be inserted, and a large-diameter hole communicating with the large-diameter hole along the longitudinal direction. A mounting hole having a small diameter hole that is not formed,
A washer member interposed between the head and the surface to be attached and inserted through the attachment screw so as to be movable in the longitudinal direction with respect to the small-diameter hole;
An auxiliary tool that is detachably attached to the washer member and is provided with a movement blocking member that is fitted in the attachment hole so as not to move in the longitudinal direction is attached.
According to this, by fixing in advance a mounting screw having a washer member mounted on a surface to be mounted such as a ceiling or a wall surface, the head of the mounting screw is inserted into the large-diameter hole of the mounting hole and the duct rail. After the mounting plate is brought into contact with the mounted surface, the duct rail is slid in the longitudinal direction to engage the head of the mounting screw with the small-diameter hole so that the duct rail is moved to the mounted surface. Can be installed on. Next, since the movement preventing member is fitted in the mounting hole, the duct rail is prevented from sliding in the longitudinal direction, and the mounting screw and the small diameter hole are maintained in the engaged state. Inadvertent removal of the rail can be prevented.
Further, the engagement between the head and the small diameter hole is released by removing the movement blocking member and sliding the duct rail in the reverse direction so that the head of the front mounting screw and the large diameter hole are matched. The duct rail can be removed from the mounting surface.
Here, since the duct rail is configured to include a power cord, electricity can be supplied to the electrode portion by connecting the power cord to a power outlet after being attached to the surface to be attached.

(2) The duct rail mounting structure of the invention according to claim 2 is as follows: “The washer member is substantially the same shape as the head of the mounting screw and abuts and supports the head; and the support A washer portion formed of an insertion portion that is provided continuously to the mounting plate and is fitted to the small-diameter hole of the mounting hole so as to be movable in the longitudinal direction.
And an engaging portion that is provided continuously with the outer peripheral edge of the washer portion and is detachably engaged with the movement preventing member ”.
According to this, when the duct rail is attached to the attachment surface, the peripheral portion of the small-diameter hole of the attachment hole is sandwiched between the support portion and the attachment surface in a pressed state. Can be mounted in close contact with the mounting surface.
By setting the support portion to be substantially the same as the thickness of the mounting plate, the mounting portion and the mounting surface are simply screwed to the mounting surface with the washer member mounted. A gap is formed in which the mounting plate can be inserted by sliding movement and can be held in a pressed state. Therefore, it is easy to fix the mounting screw to the mounted surface. Further, since the engaging portion protrudes outside the mounting screw, the movement preventing member can be easily attached to the washer member.
Here, as the engagement means between the movement preventing member and the engaging portion, one utilizing a resilient deformation of the movement preventing member, or a bayonet type structure that can be attached and detached by a simple fingertip operation can be considered.

(3) The mounting structure of the duct rail of the invention according to claim 3 is as follows: “When the head of the mounting screw is inserted through the large diameter hole of the mounting hole, the small diameter hole or the small diameter An anti-rotation portion that fits in a recess formed in a peripheral portion of the large-diameter hole facing the hole is continuously provided.
According to this, the orientation of the mounting hole is slidably positioned in the longitudinal direction and the rotation with respect to the head is prevented by the fitting of the rotation preventing portion and the small diameter hole or the recess. Thus, after the mounting hole is inserted through the mounting screw, the duct rail can be smoothly slid in the longitudinal direction without adjusting the posture of the locking hole.

(4) A duct rail mounting structure according to a fourth aspect of the present invention is characterized in that “the movement preventing member is formed with a hooking portion capable of hooking a fingertip or a nail”.
According to this, since a tool such as a tool is not necessary for removing the movement preventing member, it is easy to remove the duct rail.
Here, as the hooking portion, a groove portion formed so that a toe can be hooked on the peripheral wall surface of the movement preventing member, or a fingertip or a toe can be hooked on the peripheral wall surface or top surface of the movement preventing member. Tongue pieces and protrusions are considered.

(5) The assisting device of the invention according to claim 5 is made of a synthetic resin which is interposed between the head of the mounting screw and the mounting surface and is inserted into the small diameter hole so as to be movable in the longitudinal direction. A washer member,
A movement preventing member made of synthetic resin that is detachably attached to the washer member and is fitted in the attachment hole so as not to move in the longitudinal direction.
According to this, after removing the said movement prevention member by fixing the said attachment screw which attached the said auxiliary tool to the said to-be-attached surface, the said to-be-attached surface is carried out by the procedure of the above-mentioned Claim 1. The duct rail can be attached to the door.
Moreover, after removing the duct rail, the movement preventing member can be stored in a state of being attached to the attachment screw.

As described above, according to the first aspect of the invention, in the duct rail mounting structure for mounting the duct rail to the mounting surface such as the ceiling or the wall surface, the head of the mounting screw is attached to the mounting plate of the duct rail. A washer member that has a large-diameter hole that can be inserted and a small-diameter hole that does not pass through the head, and is inserted through the attachment screw so as to be movable in the longitudinal direction with respect to the attachment hole; and the washer A mounting screw is attached to the locking hole of the mounting plate by attaching an auxiliary tool that is detachably mounted on the member and is fitted to the mounting hole so as to be immovable in the longitudinal direction. Since the duct rail can be attached by inserting and engaging the head of the duct rail, it is easy to attach the duct rail. Similarly, the duct rail can be easily removed.
From this, the lighting fixtures can be freely installed by attaching or removing the duct rail to the mounting surface, or moving the mounting position according to room redesigns, product display changes, parties, etc. Or the position of the luminaire can be freely changed.
In addition, since the movement preventing member is attached to the washer member, the duct rail can be prevented from being accidentally dropped off, so that the mounting state of the duct rail is stabilized and safe.

According to the second aspect of the present invention, a washer portion including a support portion that abuts and supports the head portion of the mounting screw and an insertion portion that is movably fitted in the small-diameter hole of the mounting hole; Since the washer member comprising the engaging portion detachably engaged with the movement preventing member can be mounted in a state in which the duct rail is in close contact with the mounted surface, there is little backlash and the duct rail. The installation state of is stable.
Moreover, since the fixing of the mounting screw to the mounted surface and the mounting of the movement preventing member are easy, the mounting work of the duct rail to the mounted surface is easy.
According to the third aspect of the present invention, when the head portion of the mounting screw is inserted into the washer member through the large-diameter hole of the mounting hole, the anti-rotation portion that fits in the small-diameter hole or the concave portion facing the small-diameter hole By connecting, the duct rail can be smoothly slid in the longitudinal direction without adjusting the position of the locking hole after the mounting screw is inserted into the mounting hole, so that the installation of the duct rail is easy. It is.

According to the fourth aspect of the present invention, since the hooking portion is formed on the movement blocking member, no tool is required for removing the movement blocking member, so that the duct rail can be easily removed.
According to the fifth aspect of the present invention, a synthetic resin washer member inserted through the attachment screw so as to be movable in the longitudinal direction with respect to the attachment hole, and detachably attached to the washer member, The auxiliary tool is attached to the mounting screw in both cases where the duct rail is attached or not attached, by providing a synthetic resin movement blocking member that is immovably fitted. Since it is not necessary to attach the auxiliary tool to the mounting screw when attempting to mount the duct rail, the mounting operation of the duct rail is simple. It is also possible to prevent the auxiliary tool from being lost when not in use.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 shows a duct rail (1) attached to a ceiling surface (S) by a duct rail attachment structure as an example of the embodiment of the present invention.
In this example, two mounting screws (2) that are fixed to the ceiling surface (S) with screws at a predetermined interval and both ends of the mounting plate (10) of the linear duct rail (1). The duct rail (1) is attached to the ceiling surface (S) by an attachment hole (3) formed in each of the parts and an auxiliary tool (4) to which the attachment screw (2) is attached.
The duct rail (1) includes a flat mounting plate (10) that comes into contact with the ceiling surface (S), and a pair of side plates that stand upright from both edges in the width direction of the mounting plate (10). 11) a rail body, an electrode portion (12) that is attached to the side plate (11) along the longitudinal direction and supplies electricity to the plug portion (70) of the lighting fixture (7), and the electrode portion (12 And a power cord (13) attached to one end of the rail body and an end cap (15) fitted to the other end of the rail body.

As shown in FIG. 4, the mounting plate (10) has a large-diameter hole (30) into which the head (20) of the mounting screw (2) can be inserted, and the large-diameter hole (30). A mounting hole (3) is formed which is communicated along the longitudinal direction of the duct rail (1) and is formed of an elongated small diameter hole (31) which does not pass through the head (20) of the mounting screw (2). .
As shown in FIG. 2, the auxiliary tool (4) is inserted and held in the screw portion (21) of the mounting screw (2), and is interposed between the head (20) and the mounting surface (S). A synthetic resin washer member (5) to be mounted, and an engaging portion (53) projectingly formed on the washer member (5) are detachably engaged and the duct rail (1) slides in the longitudinal direction. It is composed of a synthetic resin-made movement blocking member (6) that blocks movement.

  As shown in FIGS. 3 and 5, the washer member (5) has the same circular shape as the head (20) of the mounting screw (2), and the head (20) is on the side of the screw (21). A washer portion comprising: a support portion (51) that is in contact with and supported from a support portion; and an insertion portion (52) that is connected to the support portion (51) and is fitted in the small diameter hole (31) so as to be movable in the longitudinal direction. (50) and when the mounting screw (2) is inserted into the large-diameter hole (30) and is connected to the washer part (50), and is fitted in the end of the small-diameter hole (31) in the width direction. An anti-rotation portion (54), an engagement portion (53) connected to the periphery of the washer portion (50) via the anti-rotation portion (54), and the engagement portion (53) are opposed to each other. And a tongue piece (56) connected to the peripheral edge of the support portion (51), and a screw hole (55) through which the mounting screw (2) is inserted in the center of the washer portion (50). Is formed through.

The insertion portion (52) of the washer portion (50) in this example is thicker than the support portion (51), and is set to have substantially the same thickness as the mounting plate (10) of the duct rail (1). ing. The tongue piece (56) is formed so as to be able to be inserted through the small diameter hole (31).
The engaging portion (53) can be inserted into the small diameter hole (31) and is formed so as to protrude toward the head (20) side of the mounting screw (2) from the washer portion (50). 3 (b) and FIG. 5, it is formed in a T-shaped cross section so that it can be detachably elastically engaged with an engaging protrusion (63) of a movement preventing member (6) described later. ing.

As shown in FIGS. 2 and 6, the movement blocking member (6) includes an arcuate leg (62) fitted into the large diameter hole (30) of the locking hole (3), and the leg A pair of side wall portions (61) standing upright from the portion (62) in the longitudinal direction, and detachably attached to the engaging portion (53) of the washer member (5) disposed opposite to the inside of the side wall portion (61). An engaging protrusion (63) to be engaged, and an end of the side wall (61) extending from the one end of the leg (62) along the arc of the washer member (5). The abutment portion (65) bent between the side wall portions (61) so as to abut and support the portion (53), and the leg portion (62) coupled to the upper end portion of the side wall portion (61) And a circular top plate (60) having the same diameter as that of the circular top plate (60) and a hooking portion (64) extending in the longitudinal direction from the peripheral edge of the circular top plate (60).
The side wall portion (61) can accommodate the engaging portion (53) of the washer member (5) between them, and the engaging protrusion (63) and the engaging portion (53) are detachable. As shown in FIG. 6 (a), the other end of the side wall (61) is connected to the engaging portion (53) of the washer member (5). An open portion (66) is formed so that the stopper portion (54) can be inserted.

Next, a procedure for actually attaching the duct rail (1) to the ceiling surface (S) will be described.
As shown in FIG. 7 (a), the movement preventing member (6) is removed from the mounting screw (2) on which the auxiliary tool (4) fixed with screws to the ceiling surface (S) is mounted. After having only the washer member (5) attached to the screw (2), the head (20) of the mounting screw (2) is attached to the large-diameter hole of the mounting hole (3) of the duct rail (1). As shown in FIG. 7 (b), the mounting plate (10) of the duct rail (1) is brought into contact with the ceiling surface (S). At this time, the engaging portion (53) and the tongue piece (56) connected to the washer member (5) are inserted through the small diameter hole (31), and the detent portion (54) is connected to the small diameter hole (31). ).
From this state, the duct rail (1) is slid in the direction of the arrow in FIG. 7 (b), and the mounting plate (10) is moved to the support part (51) of the washer member (5) and the ceiling surface (S 3), and as shown in FIG. 3 (a), by engaging the head (20) of the mounting screw (2) with the small diameter hole (13), the duct rail ( 1) can be attached to the ceiling surface (S).

Next, as shown in FIG. 7 (c), the movement preventing member is placed on the engaging portion (53) moved to the position of the large-diameter hole (30) by the sliding movement of the duct rail (1). As shown in FIG. 3 (b) and FIG. 7 (d), the leg portion (62) is inserted into the large-diameter hole (30) by engaging with the engaging protrusion (63) of (6). By mounting in an internally fitted state, sliding movement of the duct rail (1) in the longitudinal direction is prevented. Therefore, there is no concern that the engagement between the mounting screw (2) and the small diameter hole (31) is inadvertently released, and the duct rail (1) can be prevented from falling off.
Further, from the above attachment state, after the fingertip is hooked and removed from the hooking portion (64) of the movement preventing member (6), the duct rail (1) is attached to the head (20) of the mounting screw (2). ) And the large-diameter hole (30) are slid in the opposite direction to a position where the large-diameter hole (30) coincides with each other to release the engagement between the head (20) and the small-diameter hole (31). The duct rail (1) can be removed from.

Since it is such a configuration, if the mounting screw (2) with the auxiliary tool (4) mounted on the ceiling or wall where the lighting fixture (7) is planned to be installed is screwed in advance, When it is necessary to install or move lighting fixtures for redesign, product display change, party performance, etc., the duct rail (1) can be easily installed or installed without special tools or electrical work. The position can be moved. Thereby, a lighting fixture can be freely installed or the position of the lighting fixture can be freely changed by mounting and moving the duct rail (1).
Further, since the front duct rail (1) is not accidentally dropped, the mounting state of the duct rail (1) is stabilized and safe.
In this example, the washer member (5) including the support portion (51) and the insertion portion (52) is used. Therefore, as shown in FIG. The peripheral portion of the small-diameter hole (31) of 3) is held in a pressed state by the support portion (51) and the ceiling surface (S), and the duct rail (1) is in close contact with the ceiling surface (S) Therefore, the duct rail (1) can be stably attached.

Further, since the support portion (52) is set to be substantially the same thickness as the thickness of the mounting plate (10), the washer member (5) is inserted into the screw portion (21) of the mounting screw (2). By simply screwing and fixing to the ceiling surface (S), the mounting plate (10) can be formed with a gap that can be held in a pressed state, so the mounting screw (2) can be easily fixed. .
In this example, since the engaging portion (53) of the washer member (5) protrudes toward the head (20) side of the mounting screw (2), the movement blocking member (6) can be easily attached. Can be installed. Further, since the hooking portion (64) is connected to the movement blocking member (6), the movement blocking member (6) can be easily removed with a fingertip or the like. Thus, the duct rail can be easily attached and removed.

In addition, the washer member (5) is provided with a rotation preventing portion (54) that fits in the small-diameter hole (31), so that the locking hole (3) rotates relative to the mounting screw (2). Therefore, after the head (20) of the mounting screw (2) is inserted into the large-diameter hole (30), the posture of the locking hole (3) is adjusted. Since the duct rail (1) can be slid without being moved, the duct rail (1) can be easily attached.
In this example, the auxiliary tool (4) is configured to be attached to the attachment screw (2) in either the state where the duct rail (1) is attached or not attached. When attaching the rail (1), it is not necessary to attach the auxiliary tool (4), and the installation work of the duct rail (1) is simple. Further, it is possible to prevent the auxiliary tool (4) from being lost when not in use.
In this example, the washer member (5) is formed with an engaging portion (53) and a tongue piece (56) that can be inserted through the small diameter hole (31) in a straight line along the longitudinal direction. When the head (20) of the mounting screw (2) is inserted through the large diameter hole (30), the engaging portion (53) and the tongue piece (56) are inserted through the small diameter hole (31). As a result, since the locking hole (3) can be inserted into the mounting screw (2) in an appropriate posture, the duct rail (1) can be easily mounted.

<Others>
The duct rail mounting structure of the present invention and the auxiliary tool used therefor are not limited to the above-described embodiments.
In the above example, the mounting hole (3) is formed of one large diameter hole (30) and two small diameter holes (31) communicating with the large diameter hole (30) along the longitudinal direction. However, it may be formed in a dharma shape in which one small-diameter hole (31) communicates with the large-diameter hole (30).
In the above example, the washer member (5) has an engaging portion (53) that protrudes more toward the head (20) side of the mounting screw (2) than the washer portion (50). Although it is provided continuously with (5), it may be provided continuously with the washer member (5) so as to contact the mounting plate (10). Further, the movement blocking member (6) is configured to be fitted in only the large diameter hole (30), but in the longitudinal direction from the other small diameter hole (31) to the large diameter hole (30). It may be configured to prevent sliding movement of the mounting hole (3) by being internally fitted.

In the above-described example, the detent portion (54) is formed so as to be fitted in the small diameter hole (31) on the side where the head (20) of the mounting screw (2) is not engaged. The small-diameter hole (31) on the side engaged with the head (20) may be formed, and the small-diameter hole (31) with which the head (20) is engaged is opposed to the small-diameter hole (31). The large-diameter hole (30) may be formed so as to be fitted into a small recess formed in the peripheral edge of the large-diameter hole (30).
In the above example, in the state where the duct rail (1) is not attached, the mounting screw (2) fixed with screws to the attached surface is in a state where the head (20) is exposed. A configuration may be adopted in which a cover member is connected to the movement blocking member (6) to cover the head (20). In such a configuration, when the duct rail (1) is not mounted, the head (20) of the mounting screw (2) is exposed to the ceiling surface (S) or the wall surface and the appearance of the room is damaged. There is nothing.

It is explanatory drawing which shows the attachment state of the duct rail by the attachment structure of the duct rail which concerns on embodiment of this invention. It is sectional drawing which shows the principal part of the attachment structure of a duct rail. (a) It is AA sectional drawing of FIG. (b) It is BB sectional drawing of FIG. It is a top view which shows the attachment hole of a duct rail. (a) It is a top view which shows a washer member. (b) It is a side view which shows a washer member. (a) It is a bottom view which shows a movement prevention member. (b) It is a side view which shows a movement prevention member. It is explanatory drawing which shows the attachment procedure of a duct rail.

Explanation of symbols

(1) Duct rail
(10) Mounting plate
(11) Side plate
(12) Electrode section
(13) Power cord
(2) Mounting screw
(20) Head
(3) Locking hole
(30) Large diameter hole
(31) Small diameter hole
(4) Auxiliary tools
(5) Washer member
(50) Washer
(51) Support part
(52) Insertion section
(53) Engagement part
(54) Non-rotating part
(6) Movement prevention member
(7) Lighting equipment
(S) Ceiling surface (mounting surface)

Claims (5)

A mounting plate attached to a mounting surface such as a ceiling or a wall surface, and an electrode portion that is upright from both end edges in the width direction of the mounting plate and is electrically connected to a plug portion of a lighting fixture along the longitudinal direction A mounting structure of a duct rail having a side plate provided and a power cord for supplying electricity to the electrode part,
The mounting plate has a large-diameter hole through which a head of an attachment screw fixed to the surface to be attached can be inserted, and a large-diameter hole communicating with the large-diameter hole along the longitudinal direction. A mounting hole having a small diameter hole that is not formed,
A washer member interposed between the head and the surface to be attached and inserted through the attachment screw so as to be movable in the longitudinal direction with respect to the small-diameter hole;
An attachment structure for a duct rail, wherein an auxiliary tool, which is detachably attached to the washer member and has a movement preventing member fitted in the attachment hole so as not to move in the longitudinal direction, is attached. In the duct rail mounting structure according to claim 1,
The washer member is substantially the same shape as the head portion of the mounting screw, and a support portion that abuts and supports the head portion; and a thickness that is substantially the same as the plate thickness of the mounting plate that is connected to the support portion; A washer portion including an insertion portion that is movably fitted in the longitudinal direction with respect to the small-diameter hole of the mounting hole;
An attachment structure for a duct rail, comprising: an engaging portion that is provided continuously with an outer peripheral edge of the washer portion and that is detachably engaged with the movement preventing member. In the duct rail mounting structure according to claim 1 or 2,
In the washer member, when the head of the mounting screw is inserted through the large-diameter hole of the mounting hole, the washer member is formed in a recess formed in the small-diameter hole or a peripheral portion of the large-diameter hole facing the small-diameter hole. A mounting structure for a duct rail, characterized in that a detent portion to be fitted is provided continuously. In the duct rail mounting structure according to any one of claims 1 to 3,
A duct rail mounting structure, wherein the movement preventing member is formed with a hooking portion capable of hooking a fingertip or a nail. An auxiliary tool used in the duct rail mounting structure according to any one of claims 1 to 4,
A synthetic resin washer member interposed between the head of the mounting screw and the surface to be mounted and inserted in a movable manner in the longitudinal direction with respect to the small diameter hole;
An auxiliary tool comprising: a synthetic resin movement blocking member which is detachably attached to the washer member and is fitted in the attachment hole so as not to move in the longitudinal direction.

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