JPH0328414Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a foldable periscope that is used as a child's toy, a sports viewing tool, and the like.

[Background technology]

A folding box-shaped periscope with a reflecting mirror and windows on both the upper and lower ends of the cylinder is known (Utility Model No. 49-148947).
However, in many conventional folding box-type periscopes, the reflector used inside the periscope is inserted during assembly, and a locking piece for holding the reflector must be provided. It was impossible. For this reason, the overall structure is complicated, requiring time and effort to assemble, and has the disadvantage of being easily broken.

[Purpose of invention]

In view of the above-mentioned drawbacks of the prior art, this invention has been developed by attaching the reflector integrally to the member forming the periscope box, and by skillfully utilizing the elasticity of the member and the folds provided therein, the reflector is fixed. The object of the present invention is to provide a folding box-type periscope that does not require a special locking piece, is more robust, and is easier to assemble than conventional periscopes.

[Disclosure of invention]

The foldable periscope according to this invention has a main body made of a rectangular tube formed by folding a sheet, which can be folded flat by bringing the opposing ridgelines of the rectangular tube closer together, and also has both upper and lower ends. The wall facing the window serves as a mirror mounting part with a reflective mirror attached to its inner surface, and the wall serving as the base of the mirror mounting part has a base fold of a mountain fold in a direction perpendicular to the rectangular cylinder ridgeline. In addition to providing eyes, the walls on both sides of the rectangular tube that sandwich the mirror mounting part are inclined so that the tip side is closer to the axis of the rectangular tube when moving toward the end of the rectangular tube from where both ends of the base fold on the ridgeline of the rectangular tube are located. Further, the ridgeline portion of the square tube ridgeline from the point where both ends of the base are located to the end of the square tube is formed into a fold that can also be folded into a valley, and the mirror mounting portion is characterized in that the upper and lower reflecting mirrors can be bent in directions facing each other in an inclined state. This will be described in detail below based on the drawings showing one embodiment thereof.

Figure 1 and subsequent figures show an example of a periscope according to this invention.This periscope 1 consists of two rectangular tubes formed by folding a sheet, namely an outer tube 2 and an inner tube 3.
and a main body that are slidably fitted into each other. The outer cylinder 2 has a window 5 at the upper end of the front piece A, and the upper part of the back piece C facing the window 5 becomes a mirror mounting part 7, and a reflecting mirror 9 is attached to the inner surface of this mirror mounting part 7. has been done. The lower end of the outer cylinder 2 is open,
A locking flap 10 is provided on its inner surface to prevent the inner cylinder 3 inserted therein from falling out.

The inner cylinder 3 has a slightly smaller diameter than the outer cylinder 2, and is formed symmetrically with the outer cylinder 2, and has a window 5' at the lower end of the front piece A', and a mirror mounting part 7 at the lower end of the back piece C'. ', and a reflecting mirror 9' is attached to the mirror mounting portion 7'. The upper end of the inner tube 3 is open, and the outer tube 2 has a locking flap 1 on its outer surface.
Locking flap 1 that engages with 0 to prevent it from falling off
0' is provided.

5 and 6 are developed views of the outer cylinder 2 and the inner cylinder 3, and as can be seen from the figures, both the inner cylinder 2 and the outer cylinder 3 are made by folding one sheet (for example, cardboard). Manufactured. In the figure, the broken lines represent the mountain folds, and the dashed-dotted lines represent the valley folds. Norishiro 11, 11' are provided on the sides of the front pieces A, A' where the windows 5, 5' are provided,
Fold each fold and make this Norishiro 11, 11'
A square tube is completed by attaching the following to the back surfaces of the side pieces D and D'. When it is a square tube, the front piece A,
The positions of the back pieces C, C' facing A' and facing the windows 5, 5' are mirror mounting parts 7, 7' to which reflective mirrors 9, 9' are attached to the inner surfaces. These mirror mounting parts 7, 7' are formed by valley folds L, L' and base folds S,
S' and end folds U and U', and the folds L and L' are reversible folds that can be folded not only at valley folds but also at mountain folds. Both side pieces B, B', forming the side walls sandwiching the mirror mounting parts 7, 7';
D, D' are provided with mountain folds T, T' extending obliquely from the ends of the base folds S, S' to the center of the ends of the side pieces B, B', D, D'. It is being The inclination angles θ and θ' may be appropriately selected in consideration of the length of the rectangular tube that is the main body. Without folding these folds T, T', fold the above folds L, L' along other ridge lines a, a', b, b',
When bent along with c and c' in a mountain fold, the whole becomes a rectangular cylinder with a square cross section, but in this state, the reflecting mirrors 9 and 9' are held parallel to the windows 5 and 5', so
It does not function as a periscope.

Next, from this state, the folds L and L' are folded into valley folds, and the folds S, S', T, and T' are folded into mountain folds, and the locking folds 10 and 10' are folded inward and outward.
An outer cylinder 2 and an inner cylinder 3 as shown in FIGS. 3 and 3 are obtained. In this state, the triangular pieces E, E' sandwiched between the folds L, L' and T, T' are the side pieces B, B', D,
The strips F and F' at the ends of the mirror mounting portion 7 overlap the back surfaces of the front pieces A and A'. Furthermore, the assembled state is stabilized due to the elasticity of the material sheet, such as cardboard. In the figure, 13,
Reference numeral 13' designates a notch for holding a finger in order to raise the mirror mounting parts 7, 7' and make the whole into a rectangular tube shape.

Reflecting mirrors 9 and 9' are attached to the inner surfaces of the mirror mounting parts 7 and 7', respectively, and the square ridge lines a, a', b, b', c, and c' are bent to form an overall square tube shape. 2 and the inner cylinder 3 are fitted together, and the mirror mounting parts 7, 7' are bent inward to complete the periscope 1. Slide and stretch the outer cylinder 2 and inner cylinder 3, and open one window 5,
When you look into the reflecting mirrors 9, 9' from 5', you can see the other window 5,
The scenery reflected on the other reflecting mirrors 9', 9 can be observed through 5'.

In the embodiment, the reflecting mirrors 9 and 9' are positioned so that their surface directions are parallel to each other. This is for looking ahead. However, by changing the direction of the objective-side reflector, you can also see to the side or behind.

When storing this periscope, the mirror mounting part 7,
7' is raised to make the whole into a rectangular tube shape, the inner tube 3 is fully inserted into the outer tube 2, and then the whole can be crushed into a flat plate shape as shown in FIG. This makes the whole thing compact and convenient for storage. As can be seen, the folding and assembly operations of this periscope are extremely simple.

In the above example, a two-stage periscope consisting of an outer tube 2 and an inner tube 3 was described, but a window and a reflector may be provided at both the upper and lower ends of one rectangular tube, and a multi-stage periscope with three or more stages may be used. It may also be a formula.

[Effects of the invention] As is clear from the above explanation, the periscope according to this invention has a simple structure, is easy to assemble and fold, and is highly practical.

[Brief explanation of the drawing]

FIG. 1 is an assembly diagram showing an example of a periscope according to this invention, FIGS. 2 and 3 are front perspective views of the outer cylinder and the inner cylinder, respectively, and FIG. 4 is a rear perspective view of the inner cylinder or the outer cylinder, 5 and 6 are developed views of the outer cylinder and the inner cylinder, respectively, and FIG. 7 is a perspective view showing the folded state. 1...Periscope, 2...Outer tube, 3...Inner tube, 5,
5'... Window, 7, 7'... Mirror mounting part, 9, 9' Reflector, 10, 10'... Locking flap, 11, 1
1'... Norishiro.

Claims (1)

[Scope of utility model registration request] The main body, which is made of a rectangular tube formed by folding a sheet, can be folded flat by bringing the opposing ridgelines of the rectangular tube together. The wall that is attached to the wall becomes the mirror mounting part with a reflective mirror attached to its inner surface, and the wall that becomes the base of the mirror mounting part is provided with a mountain-shaped base fold in a direction perpendicular to the rectangular cylinder ridgeline, and the mirror mounting part is sandwiched between the walls. On both side walls of the square tube, a mountain fold is provided which is inclined from the location where both ends of the base fold on the square tube ridgeline are located toward the end of the square tube so that the tip side is closer to the axis of the square tube, and , the ridge line from the point where both ends of the base of the square tube ridgeline are located to the end of the square tube is formed into a fold that can be folded into a valley, and the mirror mounting portion is configured so that the upper and lower reflecting mirrors face each other in an inclined state. A folding periscope that can be bent in any direction.