JPS594483Y2 - Structure of rotatable bracket - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to the structure of a rotatable metal fitting.

FIG. 1 is a side sectional view showing the structure of a conventional general lighting fixture.

When packing a lighting fixture like the one shown in the figure, the angle 15 (referred to as a cover support) for supporting the cover 14 gets in the way, and the packaging size becomes larger than H in the figure.

Therefore, in order to reduce the packaging size, a method as shown in FIG. 2 has been proposed.

This method reduces the packaging size by folding down the cover support 15, but the structure of the rotatable metal fitting that has been used in the past is only as shown in Figure 3 a, l). In this case, a tool is required to open the split pins 21 at both ends of the shaft 20, and in the case shown in FIG.

Further, in order to pass the shaft 20 and the screw 22 through, it is necessary to align the holes of the metal fittings A and B, and therefore, conventionally, the assembly work of such rotatable metal fittings was troublesome and could not be done with one touch.

In addition, all of the structures of conventional rotatable metal fittings have the disadvantage that the number of parts is relatively large, resulting in high costs.

Furthermore, in such conventional rotatable metal fittings, metal fittings A and B are simply made rotatable, and metal fitting A is stably fixed to metal fitting B in an upright state. The drawback was that it was not possible at all.

This invention was made in view of the above points,
It can be easily assembled without the use of special tools, has a small number of parts and can be constructed at a relatively low cost, and also allows one metal fitting to be fixed to the other metal fitting at a predetermined rotational position. The object is to provide a structure of a rotatable metal fitting.

The configuration of the present invention will be explained in detail below with reference to embodiment figures.

In FIG. 4, the second metal fitting A and the first metal fitting B are formed of pressed steel products, and the shaft support boss 1 and the shaft support hole 2 form a pair to form a rotation mechanism.

The stopper engagement dowel 3 pairs with the stopper engagement hole 4 to perform a fixing function when the metal fitting A is raised.

Further, the bent piece 5 is used to prevent the fitting A from coming off during rotation and fixation.

The operating method of the present invention is shown below.

First, bring the fittings A and B to the positional relationship shown in Figure 5, insert the shaft support boss 1 on one side into the shaft support hole 2 of the metal fitting A, and then expand the metal fitting A a little and insert the shaft boss 1' on the other side. Insert into shaft support hole 2.

With this operation, the rotation mechanism of the metal fitting A is completed.

By the way, in Fig. 6, during the rotation operation of the metal fitting A, 30°
At the above angle, the shaft support holes 2, 2' of the metal fitting A will not come out of the shaft support bosses 1, 1' of the metal fitting B.

This is because the stepped portion 6 of the metal fitting A is structured to sandwich the metal fitting B.

Furthermore, FIGS. 7 and 8 show a state in which the metal fittings A and B have been completely assembled, and are fixed by the engaging dowel 3 for a stopper.

Next, in the embodiment shown in FIG. 9, the first retaining unevenness 7 formed by the shaft support boss 1 and the shaft support hole 2 is
and the notch groove 8 provided on the side of the metal fitting B, and the second engaging unevenness 9 formed by the engaging dowel 3 and the retaining hole 4 are inserted into the tip bent piece 10 of the metal fitting A. This indicates that the notch groove 11 may be formed on the side of the metal fitting B on the side opposite to the notch 8, and the embodiment shown in FIG. This shows that it is not necessarily necessary to provide the cutout groove 12 at the tip of the metal fitting A to partially separate the metal fitting A.

However, in this case, a cutout groove 13 is required on the side of the metal fitting B to engage the stepped portion 6 of the metal fitting A.

In addition, in Figures 1 and 2, 16 is a circle line, 1
Reference numeral 7 indicates a lighting fixture body, 18 a decorative nut, and 19 a glow lamp, but since these are not directly related to the gist of the present invention, detailed explanation thereof will be omitted.

The present invention is constructed as described above, and includes first and second metal fittings each having a pair of parallel leg pieces and a connecting piece that connects the leg pieces to each other at a constant interval. In a rotatable metal fitting that is pivotally supported at the end of the leg piece opposite to the connecting piece so that the second metal fitting can freely rotate with respect to the first metal fitting, the first and second metal fittings are pivoted. A first retaining concave-convex portion whose one end portions are engaged with each other to form a hinge portion, and a first retaining concavo-convex portion that engages with each other when the second metal fitting is rotated in a direction parallel to the first metal fitting, and which forms a hinge portion. A second retaining concavity and convexity are provided to prevent relative rotation of the second metal fitting, and a stepped portion is formed on one of the metal fittings, and when both retaining concavities and convexities are engaged, both side portions of the stepped portion are formed. Since the metal fitting is in contact with the opposite surface of the other metal fitting, there is an advantage that the first metal fitting and the second metal fitting can be easily assembled without using a special tool, and The number of components required to satisfy the function of making the metal fittings rotatable is small, and therefore it has the advantage of being cheaper than the conventional method to provide the same function. The provision of the second locking unevenness has the advantage that the second metal fitting can be fixed in a state in which it is rotated in a direction parallel to the first metal fitting. Since a stepped portion is formed at the top and both sides of the stepped portion are in contact with the opposite surface of the other metal fitting when the two retaining unevennesses are engaged, the first metal fitting and the second metal fitting are connected to each other. The contact state with the metal fittings is double-sided contact, which has the advantage that the fixed state of both metal fittings is stable.

[Brief explanation of drawings]

Figures 1 and 2 are side sectional views of a conventional general lighting fixture, Figures 3a and l) are front views of a conventional rotatable metal fitting used in the lighting fixture of Figure 2, and Figure a' , b' is a side view of the same as above,
4 and 5 are exploded perspective views of one embodiment of the present invention, FIGS. 6 and 7a are enlarged front views of the main parts of the same, FIG. 7 is a side view of the same, and FIG. A perspective view showing the completed assembled state of the same as the above, FIGS. 9a and 9l). C is a perspective view showing an assembled state of another embodiment of the present invention;
Figures 0a, 1) and 0c are perspective views showing the assembled state of still another embodiment of the same. 1 is a shaft support boss, 2 is a shaft support hole, 3 is an engagement dowel, 4 is an engagement hole, 6 is a stepped portion, 7 and 9 are engagement unevenness, 8, 11.12
and 13 are notched grooves, and 10 is a bent piece.

Claims (4)

[Scope of utility model registration request] (1) Attach the first and second metal fittings each having a pair of legs parallel to each other and a connecting piece that connects each leg piece to each other at a certain interval. In a rotatable metal fitting that is pivotally supported at an end so that the second metal fitting can freely rotate relative to the first metal fitting, one end of each of the first and second metal fittings is engaged with each other to form a hinge portion. When the first retaining unevenness forming the first retaining unevenness and the second metal fitting are rotated in a direction parallel to the first metal fitting, they engage with each other to prevent relative rotation of the first and second metal fittings. A second retaining unevenness is provided, and a stepped portion is formed on one metal fitting so that both side portions of the stepped portion contact the opposite surface of the other metal fitting when both the securing unevenness are engaged. The structure of the rotatable metal fitting consists of. (2) Utility Model Registration In the structure of the rotatable metal fitting described in claim 1, the first metal fitting is provided with a pivot boss serving as a rotation center of the face metal fitting and a retaining hole serving as a stopper of the face metal fitting, The second metal fitting is provided with a notch groove that partially extends the tip of the metal fitting in the width direction, and one side of the notch groove is fitted with the pivot boss, and the first
A shaft support hole is provided to form a retaining unevenness, and a stepped portion having approximately the same thickness as the first metal fitting is provided on the other side of the notched groove, and both sides of the first metal fitting are held by the stepped portion, and An engaging dowel is provided protruding from the stepped portion to fit into the engaging hole of the first metal fitting to form a second engaging unevenness. (3) Utility model registration Scope of claim 1 In the structure of the rotatable metal fitting described in claim 1, there is a first cutout groove on the side of the first metal fitting that serves as the center of rotation of the face metal fitting, and a first cutout groove that serves as a stopper of the face metal fitting. 2 notch grooves are provided on opposite sides of each other, a third notch groove is provided in the second metal fitting that cuts the tip of the metal fitting in the width direction, and the second notch groove and the second notch groove are provided on the l side of the third notch groove. A bent piece that fits together to form the second engaging unevenness is formed at the tip, and a stepped portion having approximately the same thickness as the first metal fitting is provided on the other side of the third notched groove, and the stepped portion is formed on the other side of the third notched groove. By fitting the part into the first notch, both sides of the first metal fitting are held, and a first retaining unevenness is formed which becomes the center of rotation of the face metal fitting. (4) Utility model registration Claims In the structure of the rotatable metal fitting described in claim 1, the first metal fitting is provided with a pivot boss serving as a rotation center of the face metal fitting and a retaining hole serving as a stopper of the face metal fitting, A shaft support hole that fits with the shaft support boss to form a first engagement unevenness is provided in the second metal fitting, and a step portion approximately the same thickness as the first metal fitting is provided on the distal side of the shaft support hole. an engagement dowel that fits into the engagement hole of the first metal fitting to form a second engagement unevenness is provided protrudingly on the distal side of the step, and a notch that fits with the step. A groove is provided on the side of the first metal fitting.