JPH0222900Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to an improvement of a reflector fastener that connects a wooden shade frame and a reflector.

(Prior art) Conventionally, as shown in Fig. 6, a wooden shade A is used.
To attach the reflector C to the top of the wooden frame A, first touch the reflector C to the step provided on the inner edge of the wooden frame A, and then screw the reflector fastener B to the upper edge of the wooden frame with wood screws D. Then, this is rotated around the wood screw D mentioned above, and the end edge of the reflector C is fixed and attached by the protruding part, and the insertion hole E of the attached reflector C is fixed.
Insert and lock the lamp as appropriate.

(Problem to be solved by the invention) However, in order to fasten the reflector, it is necessary to attach fasteners to the wooden frame at predetermined positions. In addition, since the wood screw insertion hole allows the stopper to rotate freely, loosening the screws will result in insufficient installation, and conversely, tightening the screws too tightly will cause the fasteners to rotate. This makes it difficult to move.
Furthermore, in surface treatment of the fasteners, if a plurality of fasteners are stacked one on top of the other, there is a risk that the upper and lower surfaces will come into close contact with each other, resulting in a poor plating finish on the back surface.

Therefore, this invention is an attempt to improve the above-mentioned drawbacks of the conventional ones, and to provide a fastener of this type that is easy to attach to the wooden frame of the shade and has a good plating finish.

(Means for Solving the Problems) For this purpose, a wood screw insertion hole with an annular groove formed around the upper surface of the fastener is provided, and a protrusion is projected in a line parallel to the hooking edge.

(Function) With the above configuration, when screwing the fastener onto the wooden frame of the wooden shade, the projections placed on the upper surface of the upper metal fitting are placed along the edge of the wooden frame and positioned. There is no need to use jigs or other auxiliary tools for positioning, and the wood screw insertion hole has an annular groove around it, increasing the strength of the surrounding area, and the elasticity of the groove bites into the wooden frame, making it easier to tighten. It can be adjusted, and since protrusions are provided on the top and bottom of the plate surface, there is no risk of poor finish when stacking them and plating them.

(Example) This invention will be explained in detail with reference to an example shown in the drawings.

Reference numeral 1 denotes a plate constituting a fastener, and an upright hooking edge 2 is formed on the edge of this plate 1, and a wood screw insertion hole 4 is provided near the opposite edge, approximately in the center. . An annular groove 5 is formed around this wood screw insertion hole 4.
is provided so as to protrude downward, and two protrusions 3, 3 are formed to protrude upward and are close to the edges on a line parallel to the hooking edge 2 on the plate 1 and perpendicular to the hooking edge 2, respectively. Distance l between the protrusion 3 and the center of the insertion hole 4
is larger than the distance (m) between the center and the edge, and if the wood screw insertion hole 4 is installed approximately in the center of the wooden frame 8, the stopper 1 can be rotated 180 degrees to be removed from the reflector plate 7. When removing the shade, the end edge of the fastener 1 is located within the wooden frame 8 by a distance t, so it does not protrude beyond the edge of the wooden frame 8 [Fig. 4 A and B].

In addition, when finishing the plating on the surface of the fastener 1, as shown in FIG. 5, even if the fasteners 1 and 1' are stacked one on top of the other, the protrusion 3' and the annular groove 5 maintain an appropriate distance between them. This prevents the processing liquid from spreading over the entire surface of the fastener and causing poor finish.

Furthermore, when attaching the fastener 1, the protruding part of the groove 5 is recessed into the wooden frame 8 by n as shown in FIG. Fixation can be ensured.

(Effect of the invention) As described above, since an annular groove is formed on the plate surface and a wood screw insertion hole is provided inside the groove, the area around the insertion hole is reinforced, and the fastener can be easily attached. Furthermore, it has an excellent effect of preventing finish defects caused by surface treatment.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the fastener of this invention, Figure 2 is a vertical cross-sectional view of Figure 1 attached to a wooden frame, Figure 3 is a partially enlarged view, and Figures 4 A and B show the reflection plate attached. FIG. 5 shows the state of the fastener during surface treatment, and FIG. 6 is a perspective view of a wooden shade with a conventional fastener attached. 1... Stopper, 2, 2'... Claw hook edge, 3, 3'... Protrusion, 4... Wood screw insertion hole, 5, 5'... Annular groove, 6
...Wood screw, 7...Reflector, 8...Wooden frame.

Claims (1)

[Scope of utility model registration request] A reflector fastener for wooden shades, which has a wood screw insertion hole with an annular groove around the board and a plurality of protrusions protruding on a line parallel to the hook edge.