JPH0442815Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates primarily to folding binoculars in the field of opera glasses.

Conventional technology Binoculars, whether high-precision ones or simple ones like opera glasses, generally have a pair of lens barrels combined, and binoculars that reduce the shape have a combination of left and right lens barrels. It is widely known that the joint in the middle can be rotated in an interlocking manner.

In addition, in recent years, a simple paper box-shaped one has been proposed, and one described in Japanese Utility Model Application Publication No. 60-30417 is known.

Problems to be Solved by the Invention As stated in the prior art section, binoculars range from high-precision binoculars to simple binoculars such as opera glasses, and their form is a combination of a pair of lens barrels. There are limits.

The present invention is easy to assemble and fold, and when folded, it can be reduced to an ultra-thin flat box shape and can be stored in a pocket or anywhere else.It is not only convenient to carry, but also convenient to store and use. The aim is to provide binoculars that can maintain the parallelism of the lenses to provide a good magnified field of view, can be supported robustly, and can be used semi-permanently instead of being used only once, unlike traditional paper binoculars. It is.

Means for Solving the Problem The front and back case plates, which have a flat box shape when folded, are bent into two halves from the middle, and their connecting ends are moved upward and downward, so that the front and rear ends of each are bent into two halves. The upper divided case plate and the lower divided case plate are formed so as to face each other from above and below at the middle bisecting position, and the upper inner side of the upper divided case plate forms the same plane and faces each other. Bearing walls are formed at the required spacing. A bearing hole is formed in each of them, and the engagement shafts protruding from both ends of the butterfly joint are engaged with the bearing holes, and the hinge joint is engaged and connected in a flexible manner. A similarly protruding engagement shaft is engaged with the opposite end of the butterfly joint to connect and connect the case plate in a flexible manner, and a rear partition member of a required width is interposed between the rear end portions of the case plate. Both ends of the case plate are pivotally supported on bearings provided on both sides of the rear end of the case plate, and a pair of eyepiece lenses are attached to the rear bulkhead member with the required spacing. The front diaphragm is mounted with both ends pivoted to bearings provided on both side edges of the case plate, and an objective lens corresponding to the eyepiece is attached to a predetermined position on the front diaphragm. Foldable binoculars characterized in that the front end of a side wall plate whose rear end is pivoted at both ends and the side wall plate whose front end is pivoted at both ends of a front partition plate are connected to each other at a central position so as to be bendable and extensible. It is in.

Function The upper split case plate and the lower split case plate on the front and back, which are hinged in the above-mentioned structure inside the hollow part, can be moved up and down by holding both sides of the central split part with your fingers. When opened, each of the divided case plates shrinks in front and back, and the front side becomes the front case plate, and the rear side converts into the rear case plate. As a result, the front partition plate provided with the objective lens comes to be located parallel to the inside of the converted front case plate, and the rear partition plate moves along the back side of the front partition plate. At the same time, the side wall plates provided between the case plates on both the front and back sides were folded inward from the center pivot joint and folded in along the back of the front bulkhead plate, thereby unfolding the case into use. The binoculars fold into an ultra-slim, flat box.

In this way, the binoculars can be folded into a flat box shape and assembled in an instant by unfolding the case plate in the opposite direction to folding.

Embodiment To explain with reference to the drawings, the case plate 1 and the case plate 2 on both the front and back sides of a case whose outer shape is formed into a flat box shape are respectively aligned with the central axis S- as shown in FIG.
Divided from the middle bisecting position along S, there are upper divided case plates a1 and a2 and lower divided case plate b.
1 and b2, and the upper divided case plate a
1 and a2 have bearing walls a1a and a2a facing each other on the same plane formed at a required interval, and bearing holes a1a1 and a2a1 are opened in the bearing walls a1a1 and a2a1, respectively. Engagement shafts 3a and 3b protruding from both ends of the butterfly joint 3 are engaged and are connected together in a flexible manner, and the lower end split case plates b1 and b2 are similarly constructed on the inside of the lower ends, opposite to the butterfly joint 3. Engagement shaft 3 similarly protruding from the side end
a and 3b are engaged and are bendably connected;
A rear partition member 4 of a required width is interposed between the rear end portions of the case plates 1 and 2, and both ends of this member are pivotally supported by bearings 5 provided on both sides of the rear end sides of the case plates 1 and 2. A pair of eyepieces 6 and 6 are attached to the rear partition member 4 with a required spacing, and a front partition plate 7 of the required width is attached to the inner side of the front end of the case plates 1 and 2. The support shafts at both ends are pivoted to bearings 8, 8 provided on both side edges of the device, and objective lenses 9, 9 corresponding to the eyepieces 6, 6 are attached to predetermined positions of this front partition plate 7, The front end of the side partition plate 10, whose rear end is pivoted to both ends of the rear partition member 4, and the side wall plate 11, whose front end is pivoted to both ends of the front partition plate 7, are connected to each other at a central position so that they can bend and expand. This is what I did.

Effects of the invention Since the invention is constructed as described above, when in use, it can be unfolded into the state shown in Figure 1 and used as binoculars, and when folded it can be used as binoculars as shown in Figure 2. It becomes a thin flat box.

In this way, unlike conventional binoculars that consist of a pair of cylindrical lens barrels, the present invention can be reduced to an ultra-thin and flat box when folded, so it is not bulky even when stored in a pocket. Therefore, it is extremely convenient to carry. In addition, it is easy to unfold and fold, and when used, conventional opera glasses are enough to perform as binoculars, so they can be used for watching theater or watching sports events held in large grounds. It has the advantage of being suitable for various applications, has a simple outer structure, and can be mass-produced, so it can be provided at low cost. In addition, the case plates 1 and 2 on both the front and back sides are
It is divided into upper divided case plates a1, a2 and lower divided case plates b1, b2, and bearing walls a1a, a2a facing each other and forming the same plane are formed at a required interval on the intermediate inner side of each. Bearing holes a1a1, a2a1 are opened in each of them, and engagement shafts 3a, 3b protruding from both ends of the threaded joint 3 are engaged with the warp bearing holes a1a1, a2a1, and are connected and connected in a flexible manner, and are connected downwardly. The lower inner sides of the side split cases b1 and b2 are constructed in the same manner and are connected to each other in a flexible manner by means of a screw joint 3, and between the left and right inner sides, side wall plates connected back and forth are arranged in a flexible manner. It is sturdy and easy to handle with sufficient support during use.

Therefore, since the binoculars are housed in a hard case, there is no waste in the structure, they have a good magnified field of view, and are sturdy and have many practical effects as foldable binoculars in the field of opera glasses.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the exterior when used as binoculars, Figure 2 is a perspective view of the exterior when folded, and Figure 3 is a sectional view showing the state of the front partition and rear partition members when folded. , Fig. 4 is a sectional view showing the state of the side wall plate, objective lens, and eyepiece lens, Fig. 5 is a cross-sectional plan view showing the position of the lens during expanded use, and Fig. 6 is a sectional view taken along line D-D. , Figure 7 shows E
- It is a sectional view along the E line. 1, 2... Case plates on both front and back sides, a1, a2...
...Upper side split case plate, b1, b2...Lower side split case plate, a1a, a2a...Bearing wall, a1a
1, a2a1... Bearing hole, 3, 3... Butterfly joint, 3
a, 3b...Engagement shaft, 4...Rear bulkhead member, 5...
... bearing, 6 ... eyepiece, 7 ... front partition,
8... Bearing, 9... Objective lens, 10... Side wall plate, 11... Side wall plate.

Claims (1)

[Scope of utility model registration request] The front and back case plates 1 and 2, which have a flat box shape when folded, are bent into two halves from the middle, and their connecting ends are moved upward and downward, and their front and rear ends are connected to the middle. The upper divided case plates a1 and a2 and the lower divided case plates b1 and b2 are formed so as to face each other from above and below at the bisecting position, and the inner upper ends of the upper divided case plates a1 and a2 are flush with each other. Bearing walls a1a, a2a facing each other forming
are formed at required intervals, and a bearing hole a1 is formed in each of them.
a1, a2a1 are opened, and the bearing hole a1a
Engagement shafts 3a and 3b protruding from both ends of the butterfly joint 3 are engaged with 1 and a2a1 and are connected and connected in a flexible manner. Engagement shafts 3a and 3b, which are also protruding from opposite ends of the joint 3, are engaged and are connected together in a flexible manner, and a rear partition member 4 of a required width is interposed between the rear end portions of the case plates 1 and 2. Both ends of this member are pivotally supported on bearings 5 provided on both sides of the rear end sides of the case plates 1 and 2, and a pair of eyepieces 6 and 6 are attached to the rear partition member 4 at a required interval, and A front partition plate 7 of a required width is attached to the inner side of the front end of the case plates 1 and 2 with both ends pivoted to bearings 8 and 8 provided on both side edges of the case plates 1 and 2. Objective lenses 9, 9 corresponding to the eyepieces are attached to predetermined positions of the partition plate 7, and the front ends of the side wall plate 10, whose rear ends are pivoted to both ends of the rear partition member 4, and the front ends of the front partition plate 7 are attached to both ends of the partition plate 7. The folding binoculars are characterized in that side wall plates 11 and side wall plates 11 which are pivoted are connected 12 in a manner that they can be bent and extended with each other at a central position.