JP3055551U - Mounting structure of metal fittings to plate - Google Patents

Abstract

(57) [Problem] To provide a mounting structure of a metal fitting which can extremely easily and quickly mount a metal fitting to a plate material without using a mounting tool. A detachable base (20) of a metal fitting (2) having a detachable base (20) on a base is provided with plate-shaped locking claws (2) at lower portions on both sides.
Each of the plate members 1 and 21 is formed so as to protrude to the side. The plate member 1 has at one end each locking guide hole 11 through which the locking claw 21 is guided. When the attachment / detachment base 20 is rotated by a predetermined angle in one direction so as to draw an arc on a plane parallel to the plate 1 while being guided to the corresponding engagement guide hole 11, the base of each engagement claw 21 The guide slits 10 are formed in an arcuate shape for guiding the plate 22, and the attachment / detachment base 20 is rotated so that each locking claw 21 is attached to the plate 1.
At the back of the outer peripheral portion of the corresponding guide slit 10.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a mounting structure for mounting metal fittings for mounting various objects on a plate material.

[0002]

[Prior art]

 With reference to FIG. 6, a conventional mounting structure of a rod-shaped fluorescent lamp holding bracket to a plate material forming a reflection shade of a rod-shaped fluorescent lamp will be described. FIG. 6 is a schematic sectional view of the mounting structure. The plate member 1 is a reflection shade for a rod-shaped fluorescent lamp, and is formed by forming a metal plate into a divergent channel-shaped cross-sectional shape. It is processed to a glossy surface. On the lower surface side of the plate 1, two rod-shaped fluorescent lamps 3 along the length direction thereof are held by a pair of metal fittings 4 attached to the plate 1 at a predetermined interval. Each of the metal fittings 4 is formed by bending a ribbon-shaped metal plate, and includes a detachable base 40 having an inverted channel-shaped cross section, and opposed arc-shaped clamping parts integrally formed so as to stand up to both ends of the detachable base 40. Each of the holding pieces 41, 41 is formed with a curl portion 42 that is bent outward at the tip end thereof. Each metal fitting 4 is attached to the plate 1 by caulking the bottom of the detachable base 40 with a rivet (blind rivet) 5 near both ends of the lower surface on both sides of the plate 1. The pair of metal fittings 4, 4 attached to the plate 1 in the above-described manner are held between the holding pieces 41, 41.

[0003]

[Problems to be solved by the invention]

 If the metal fittings 4 are attached to the plate material 1, which is a reflection shade of the fluorescent lamp, before shipment to the user, the metal fittings 4 attached to the plate material 1 become obstructive during packing and other handling. The user attaches the metal fittings 4 to the plate 1 at the installation site of the plate 1. The conventional mounting structure of the metal fitting shown in FIG. 6 is mounted on the plate 1 by the rivet 5, and therefore, first, there is a problem that the mounting takes time. In particular, in a factory or the like where the space for installing fluorescent lamps is extensive, the mounting of the metal fittings 4 to the plate material 1 is also large, so it took a long time to mount the metal fittings 4. Second, a special tool is required to caulk the rivet 5, and from the standpoint of the user, these tools also need to be purchased, so that the installation cost is high. Thirdly, screw screws may be used instead of the rivets 5. However, in this case, tools such as a screwdriver are required, and the screw screws are loosened due to vibration or the like, and the metal fittings 4 are likely to rattle.

[0004] An object of the present invention is to provide a mounting structure of a metal fitting to a plate material which can be extremely easily and quickly mounted without requiring a tool for mounting the metal fitting to the plate material. Another object of the present invention is to provide a mounting structure of a metal fitting to a plate material in which the mounting state of the metal fitting is unlikely to be loosened.

[0005]

[Means for Solving the Problems]

 The mounting structure of the bracket to the plate material according to the present invention is configured as follows to solve the above-mentioned title change. That is, in the mounting structure of the metal fitting to the plate material according to the first aspect, the attaching and detaching base 20 of the metal fitting 2 having the attaching and detaching base 20 has plate-like locking claws 21 and 21 protruding laterally at lower portions on both sides. The plate member 1 has at one end a locking guide hole 11 for guiding each of the locking claws 21, and connects each of the locking claws 21 to the corresponding locking guide hole 11. When the detachable base 20 is rotated by a predetermined angle in one direction so as to draw an arc on a plane parallel to the plate 1 in the guided state, an arc-shaped guide through which the base 22 of each locking claw 21 is guided. The slits 10 and 10 are formed, and the locking claws 21 and 21 of the detachable base 20 are guided to the corresponding locking guide holes 11 so as to slightly protrude from the front side to the rear side of the plate material 1. Turn the base 20 a predetermined angle in the one direction. It is characterized in that each of the locking claws 21 is locked on the back side of the outer peripheral portion of the corresponding guide slit 10 in the plate material 1 by turning.

According to a second aspect of the present invention, in the mounting structure of the metal member to the plate member, the base portion 22 of each of the locking claws 21 is substantially equal to a plate thickness t of the plate member 1 or The guide slit 10 is bent slightly larger than the plate thickness t, and the outer peripheral inner edge 10 a of each guide slit 10 gradually moves from the locking guide hole 11 side to the other end side. It is characterized in that it is formed so as to approach the peripheral inner edge 10b.

According to a third aspect of the present invention, in the mounting structure of the metal member to the plate member, the plate member 1 is a reflection shade of a bar-shaped fluorescent lamp, and the plate member of the metal member 2 is provided. The detachable base 20 is characterized in that opposed arc-shaped holding pieces 23 for holding the rod-shaped fluorescent lamp 3 are integrally formed.

[0008]

[Embodiment of the invention]

 With reference to FIGS. 1 to 5, a preferred embodiment of a mounting structure of a metal fitting to a plate material according to the present invention will be described in detail. FIG. 1 is a partially exploded perspective view showing an embodiment in which the mounting structure according to the present invention is mounted on a mounting bracket for a reflection shade of a rod-shaped fluorescent lamp, FIG. 2 is a partially enlarged plan view of the mounting structure of FIG. 3 is an enlarged perspective view of the metal fitting in the mounting structure of FIG. 1, FIG. 4 is a partially enlarged sectional view showing a state before the metal fitting is set and fixed to the plate material, and FIG. 5 is a metal fixed to the plate material and fixed to the metal fitting. It is the elements on larger scale sectional drawing in the state where the rod-shaped fluorescent lamp was held.

The plate member 1 is a reflection shade for a rod-shaped fluorescent lamp, and a lower surface side, which is a part of the surface, is shown facing upward. The plate member 1 is formed by shaping a metal plate having a plate thickness t = 0.4 mm into a shade shape, and the surface side is processed into a metallic glossy surface. In this embodiment, the metal fitting 2 is formed by cutting a stainless steel or other elastic metal plate having a thickness of about 0.4 mm into a ribbon shape and bending the metal plate. As shown in FIG. A detachable base 20 and clamping pieces 23, 23 which are bent in an arc shape so as to stand up at opposite ends of the detachable base 20 via S-shaped cushion portions 24 in opposite directions. The tip of the piece 23 is formed with a curled portion 23a that is slightly bent outward.

On the detachable base 20 of the metal fitting 2, plate-shaped engaging claws 21, 21 are formed at the lower portions on both sides so as to protrude to the side, and as shown in FIG. The base 22 closer to 20 is bent substantially the same as the thickness t of the plate material 1 or slightly larger than the thickness t. The shapes and dimensions of the locking claws 21 are the same. On the other hand, a required portion of the plate member 1 has, at one end, each locking guide hole 11 through which the locking claw 21 is guided, and projects each locking claw 21 into the corresponding locking guide hole 11. When the detachable base 20 is rotated substantially 90 degrees in a clockwise direction so as to draw an arc on a plane parallel to the plate 1 in the inserted state, the base 22 of each locking claw 21 is guided. Guide slits 10, 10 are formed. The shapes and dimensions of the guide slits 10 are the same.

When attaching the metal fitting 2 to the plate 1, first, each of the locking claws 21, 21 of the detachable base 20 is inserted into the corresponding locking guide hole 11 as shown in FIG. 2 (dotted line) and FIG. The plate 1 is guided so as to protrude slightly from the front side to the back side. Next, when the detachable base 20 is rotated in the clockwise direction until it stops, the locking claws 21 go under the outer peripheral surface of each guide slit 10 as shown in FIG. 2 (two-dot chain line) and FIG. The metal fitting 2 is attached to the plate 1 in the state of being locked. In this embodiment, when the locking claws 21 and 21 are guided to the corresponding locking guide holes 11 and the attachment / detachment base 20 is rotated clockwise, the bases 22 of the locking claws 21 are moved to the corresponding guide slits 10. It is designed to stop at the other end.

In this embodiment, as described above, when the base 22 of each locking claw 21 rotates the detachable base 20 clockwise so as to follow the corresponding guide slit 10, the detachable base 20 smoothly moves. In order to rotate, the detachable base 20 is slightly bent so that both ends (the left and right ends in FIG. 1) are slightly raised (in this embodiment, into a large arc).

In this embodiment, the outer peripheral inner edge 10 a of each guide slit 10 gradually approaches the inner peripheral inner edge 10 b of the guide slit 10 from the locking guide hole 11 side to the other end side. It is formed as follows. In order to form the outer peripheral inner edge 10a of each guide slit 10 as described above, in this embodiment, the center of the arc of the inner peripheral inner edge 10b of each guide slit 10 is set to the point p in FIG. The center of the arc of the outer peripheral edge 10a of the upper left guide slit 10 in FIG. 2 is set to a point p1 slightly eccentric to the lower left from the point p in FIG. In addition, the center of the arc of the outer peripheral inner edge 10a of the other guide slit 10 is set to a point p2 slightly eccentric to the upper right from the point p. With this configuration, as shown by the dotted line in FIG. 2, when each locking claw 21 is guided to the locking guide hole 11, the base 22 of each locking claw 21 corresponds to the outer periphery of the corresponding guide slit 10. Apart from the side inner edge 10a, the detachable base 20 rotates lightly and smoothly at the initial stage of its rotation. Then, with the rotation of the detachable base 20, the base 22 of each locking claw 21 gradually approaches the outer peripheral side inner edge 10a of the guide slit 10, and when the detachable base 20 is rotated until it stops, FIG. As shown by the two-dot chain line and FIG. 5, the base 22 of each locking claw 21 is strongly pressed against the outer peripheral inner edge 10a of the guide slit 10, so that the metal fitting 2 is smoothly and firmly attached to the plate 1. .

After each metal fitting 2 is attached to a required portion of the plate 1 made of a reflection shade in the manner described above, the end of the bar-shaped fluorescent lamp 3 is held between the holding pieces 23 of the metal fitting 2 as shown in FIG. It is kept in the state where it was inserted. In this manner, when the bar-shaped fluorescent lamp 3 is held by the holding pieces 23, 23, the metal fitting 2 does not rotate at all in the return direction (counterclockwise) even if it is subjected to an external force. Never.

According to the mounting structure of the metal fitting on the plate material according to the above embodiment, first, each of the locking claws 21, 21 of the detachable base 20 is moved to the corresponding locking guide hole 11 on the front side of the plate material 1. By simply rotating the detachable base 20 in one direction by a predetermined angle, each of the locking pieces 21 of the metal fitting 2 is locked to the back side of the plate material 1 at the outer peripheral portion of the corresponding guide slit 10. Therefore, the mounting tool is not required, and the metal fitting 2 can be more easily and quickly mounted on the plate 1 at the construction site. Secondly, the detachable base 20 is slightly bent so that both ends (the left and right ends in FIG. 1) are slightly raised with respect to the plate material 1 (to form a large arc in this embodiment). Therefore, when the detachable base 20 is rotated clockwise so that the base 22 of each locking claw 21 is along the corresponding guide slit 10, the detachable base 20 can be smoothly rotated. Third, the outer peripheral inner edge 10a of each guide slit 10 gradually approaches the inner peripheral inner edge 10b of the guide slit 10 from the corresponding locking guide hole 11 side to the other end side. The base 22 of each locking claw 21 is gradually and strongly pressed against the outer peripheral inner edge 10a of the guide slit 10 as the detachable base 20 first rotates lightly and its rotation angle increases. 2 can be smoothly and firmly attached to the plate 1. Fourth, when the bar-shaped fluorescent lamp 3 is held by the holding pieces 23, 23, the metal fitting 2 does not turn at all in the return direction (counterclockwise) even if it receives an external force. Can be prevented from loosening.

Other Embodiments In the above-described embodiment, the case where the plate 1 is a reflection shade of a rod-shaped fluorescent lamp and the metal fitting 2 is a holding metal of the rod-shaped fluorescent lamp has been described. In addition to the case, the present invention can be widely applied to a mounting structure of a metal fitting for mounting or holding another object to the plate material.

[0017]

[Effect of the invention]

 According to the mounting structure of the metal member to the plate material according to the invention of claim 1, each of the locking claws 21 and 21 of the detachable base 20 is inserted into the corresponding locking guide hole 11 from the front side to the rear side of the plate member 1. By simply guiding the mounting base 20 in a slightly protruding state and rotating the detachable base 20 in one direction by a predetermined angle, each locking piece 21 of the metal fitting 2 is locked to the back side of the plate 1 at the outer peripheral portion of the corresponding guide slit 10. Therefore, the fitting 2 can be more easily and quickly attached to the plate 1 at the construction site without the need for an installation tool.

According to the mounting structure of the bracket to the plate material according to the invention of claim 2, the outer peripheral inner edge 10a of each guide slit 10 gradually moves from the locking guide hole 11 side to the other end side. Is formed so as to approach the inner peripheral side inner edge 10b of the guide slit 10 so that the detachable base 20 first rotates lightly, and the base 22 of each locking claw 21 is rotated with the rotation so that the outer peripheral inner edge of the guide slit 10 is formed. Since the metal fitting 2 is gradually and strongly pressed against the portion 10a, the metal fitting 2 can be more smoothly and firmly attached to the plate material 1.

According to the mounting structure of the metal fitting to the plate material according to the third aspect of the present invention, when the bar-shaped fluorescent lamp 3 is held by the holding pieces 23, 23, the metal fitting 2 returns in the return direction (counterclockwise) even when it receives an external force. Since it does not rotate in the clockwise direction, the metal fitting 2 can be prevented from loosening with respect to the plate 1.

[Brief description of the drawings]

FIG. 1 is a partially exploded perspective view showing, on an enlarged scale, an embodiment in which a mounting structure according to the present invention is applied to a mounting structure of a holding fixture for a rod-shaped fluorescent lamp with respect to a reflection shade.

FIG. 2 is a partially enlarged plan view of the mounting structure of FIG. 1;

FIG. 3 is an enlarged perspective view of a fitting in the mounting structure of FIG. 1;

FIG. 4 is a partially enlarged cross-sectional view showing a state before a metal fitting is set and fixed on a plate material.

FIG. 5 is a partially enlarged cross-sectional view showing a state in which a fitting is fixed to a plate member and a rod-shaped fluorescent lamp is held by the fitting.

FIG. 6 is a cross-sectional view illustrating an example of a conventional mounting structure of a bracket to a plate member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plate material 10 Guide slit 10a Outer side inner edge 10b Inner side inner edge 11 Locking guide hole 2, 4 Metal fittings 20, 40 Detachable base 21 Locking piece 22 Base 23, 41 Nipping piece 23a, 42 Curling part 24 Cushion part 3 Bar-shaped fluorescent lamp 4 Metal fittings 5 Rivets

Claims (3)

[Utility model registration claims] 1. An attachment / detachment base 20 of a metal fitting 2 having an attachment / detachment base 20 has plate-shaped locking claws 21 and
The plate member 1 has a locking guide hole 11 at one end where the locking claw 21 is guided, and the locking claw 21
When the detachable base 20 is rotated by a predetermined angle in one direction so as to draw an arc on a plane parallel to the plate 1 in a state in which the locking claws 2 are guided to the corresponding locking guide holes 11,
Arc-shaped guide slit 1 through which one base 22 is guided
0, 10 are formed, and the locking claws 21, 21 of the detachable base 20 are guided to the corresponding locking guide holes 11 so as to slightly project from the front side to the rear side of the plate 1, respectively. 20 is rotated in the one direction by a predetermined angle to lock each of the locking claws 21 on the back side of the outer periphery of the corresponding guide slit 10 in the plate 1, wherein the metal fitting is attached to the plate. Construction. 2. The base portion 22 of each of the locking claws 21 is bent substantially the same as or slightly larger than the plate thickness t of the plate member 1, and the outer peripheral inner edge of each guide slit 10. The part (10a) is formed so as to gradually approach the inner peripheral side inner edge part (10b) of the guide slit (10) from the locking guide hole (11) side to the other end side. A mounting structure of the bracket to the plate material described. 3. The plate member 1 is a reflection shade for a bar-shaped fluorescent lamp, and the detachable base 20 of the metal fitting 2 is plate-shaped.
Opposite arc-shaped holding pieces 23, 23 for holding the rod-shaped fluorescent lamp 3 are integrally formed on the detachable base 20.
A mounting structure for a metal fitting on the plate material according to claim 1.