JPS6139371Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a connecting structure in which a two-piece piece for fixing eyeglass parts, particularly lenses, is fixed with screws.

In eyeglass frames, a split structure is used for attaching and removing lenses to and from the frame and for attaching temples. It is assembled using a connecting structure using screws.

In the conventional joining structure, a screw hole is formed in one of the two parts and a screw insertion hole is formed in the other, and the two parts are connected by screwing the screw from the insertion hole into the screw hole.

However, in the above structure, since the screw is freely pulled out from the insertion hole before joining, there is a problem that the two members and the screw are completely separated, and the assembly becomes troublesome and time-consuming.

This idea was made to solve the above problem, and one side of the two parts,
The object of the present invention is to provide a connecting structure in which the screws that connect both members are assembled in a manner that prevents them from coming off, the screws do not come off from the members, and the joining operation can be easily performed.

The structure of this device is to provide screw holes in both of the members to be joined, and to form the screw hole in one member by providing a head storage recess at the outer end of the shaft penetrating portion and a large diameter recess at the inner end. However, the screw inserted into the screw hole is attached to one member in a manner that prevents it from coming off through the large diameter recess at the inner end.

Hereinafter, this invention will be explained based on the embodiments shown in the accompanying drawings.

Figures 1 and 2 are two-piece eyeglass parts.
Examples include the one piece chisel 1 shown in the figure, the split chisel 21 shown in Figures 3 and 4, and the blow chisel 31 shown in Figure 5. etc.

The One Piece Wisdom shown in Figures 1 and 2 is located in Temple 2.
The main body 4 is connected with a screw 3, and a small piece 6 fits into a recess 5 provided at the bottom of the tip of the main body 4.The main body 4 and the small piece 6 are connected using a screw 7, and the lens The separated ends of the frame are fixed to the main body 4 and the small piece 6 by soldering, respectively, so that lenses can be taken in and out.

The screw 7 is formed by providing a male thread 10 with a larger diameter than the shaft 9 at the tip of a shaft 9 that is connected to the head 8, and has a screw hole in the small piece 6 and the main body 4 into which the male thread 10 is screwed. 11 and 12 are provided, and by screwing the male screw 10 passed through the screw hole 11 of the small piece 6 into the screw hole 12 of the main body 4, the small piece 6 and the main body 4 are connected.
It is now possible to conclude a

As shown in FIG. 2, the screw hole 11 provided in the small piece 6 has a storage recess 13 for the head 8 at the outer end,
A large-diameter recess 14 is provided at the inner end, and when the male screw 10 is passed through this screw hole 11, the screw 7 is rotatably set in the small piece 6 without being removed.

Next, the split chisel 21 shown in FIGS. 3 and 4 is formed by the chisel units 22 and 23 divided into upper and lower halves,
The two end pieces 22 and 23 are connected by a fastening screw 7 and a screw 7a for attaching the temple 2, and the lower end piece 22 has screws 7 and 7a.
screw holes 11, 11a are provided, and the upper other piece 23 has a screw hole 1 for screwing the screws 7, 7a.
2, 12a are provided.

The screws 7, 7a are formed with a head 8, a shaft 9, and a male screw 10, as in the case of the one-piece grip, and the screw holes 11, 11a of the one-piece grip 22 have a head storage recess 13 at the outer end and an inner screw hole. It is formed with a large-diameter recess 14 at the end, and the screws 7, 7a are rotatably set in the single piece 22 without being removed.

Further, the blow tip 31 shown in FIG. 5 is formed of a lower tip unit 32 with a chevron-shaped upper surface and an upper tip unit 33 overlaid on this unit 32, and the lower tip unit 32 has a screw hole 11, and the upper tip unit has 33 is provided with a screw hole 12, and the screw 7 is set in the screw hole 11 of the lower unit 32 in a freely rotatable state.

The eyeglass component of this invention has the above-mentioned configuration, and the screw 7 is inserted into one member provided with the screw hole 11 at the end where the eyeglass component is divided into two parts, and the male screw 10 is passed through the screw hole 11 so that the eyeglass component can be rotated freely. The two members are connected by setting the screw 7 in such a way that it cannot be removed, and rotating the screw 7 and screwing it into the screw hole 12 of the other member. At times, since the screw 7 is held in the large-diameter recess 14 in one member, the work can be performed efficiently with one touch.

As described above, according to this invention, screw holes are provided in both eyeglass parts to be connected with screws, and the screw hole in one member has a head storage recess at the outer end and a large diameter recess at the inner end. Therefore, it is possible to attach the screw to one member so that it cannot be removed, so that the screw does not come off from the other member, and there is no need to insert small screws that are difficult to tighten and loosen one by one. For putting the lens in and out of the frame,
The effect is that joining and separating operations can be easily performed with a single touch.

Further, since the screw, which is a small part, can be set in advance on one side of the connecting member, there is no possibility of powder loss.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing a first example of this invention, Fig. 2 is a longitudinal cross-sectional view showing the assembled state of the same, Fig. 3 is an exploded perspective view showing the second example of the same, and Fig. 4 is an exploded perspective view showing a first example of the invention. FIG. 5 is an exploded perspective view showing the third example. 1 is one piece, 7 is a screw, 8 is a head, 9 is a shaft, 1
0 is a male screw, 11 and 12 are screw holes, 13 is a storage recess, 14 is a large diameter recess, 21 is a split tip, and 31 is a blow tip.

Claims (1)

[Scope of utility model registration request] It is composed of a pair of connecting members each having a threaded hole that forms a coaxial core when stacked on top of each other, and a screw formed by providing a male thread at the tip of a shaft whose head is connected to the threaded hole to be threaded into the threaded hole. , wherein the screw hole of the coupling member has a head accommodating recess at the outer end and a large-diameter stepped section at the inner end.