JPH0132015Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to folding binoculars, and more specifically, to folding binoculars in which all of the component parts are made of synthetic resin such as plastic.

[Technical background of the invention and its problems] Conventionally, this type of foldable binoculars has been disclosed, for example, in Japanese Utility Model Publication No. 18380/1983.
Devices made of metal parts such as iron and aluminum are well known, but although they are foldable and compact in size, they are heavy and inconvenient to carry. In other words, foldable binoculars are suitable for baseball, soccer,
They are often carried in clothing pockets or handbags for watching sports such as boxing, or as opera glasses for theater viewing, but because they are made of metal and are heavy, they tend to sag in the pocket.
This had the disadvantage of damaging other parts such as cosmetics in the handbag.

In addition, these metal opera glasses are designed so that the bent part of the iron plate engager provided on the upper cover plate engages with the through hole of the engager provided on the lower cover plate, so that the upper cover plate is closed. The opening of the lower cover plate is restricted, and the backward-sloping rail fixed to the inner surface of the upper cover plate and the arc-shaped rail fixed to the inner surface of the lower cover plate are both formed by squeezing the metal plate. It has a complicated structure in which winders formed at the upper and lower ends of the frame plate slide on both the upper and lower rails to raise and lower the frame plate.Furthermore, a metal handle plate is attached to the side of the mounting body. There are also complex tasks that require advanced techniques, such as attaching the rod to the rod so that it can rotate freely.
It was extremely difficult to mold it. Therefore, conventional metal opera glasses have a large number of parts, it takes time to mold each metal part, the manufacturing process is complicated, and the metal itself is expensive, so the manufacturing price as a whole is extremely high. Furthermore, they are susceptible to rain and water and may rust, making them unsuitable for foldable binoculars that are often easily carried and used outdoors.

[Purpose of the invention] Therefore, this invention was devised to eliminate the above-mentioned drawbacks. By making all of its component parts made of synthetic resin, it is extremely lightweight and has a small number of parts. To provide folding binoculars that can be easily assembled through a simple manufacturing process and manufactured at low cost.

[Summary of the invention] Therefore, the main points of this invention are: a case body consisting of a lid part and a bottom part attached to the base of the eyepiece so as to be openable and closable; It consists of a lens support piece and a position adjustment mechanism that adjusts the position of the eyepiece lens back and forth.The support piece is equipped with an objective lens fitted into a lens frame, and near the upper edge of the support piece,
When the lid and bottom of the case body open and the support piece stands up due to the elasticity of the spring, a recess is provided that engages with a hook-shaped hook provided at an appropriate position on the inner surface of the lid. Similarly, locking portions are formed at both ends of the edge to engage hook portions provided at appropriate positions on the inner surface of the bottom when the support piece is erected, and the position adjustment mechanism has a substantially H-shape. , a through-hole which is pivotally attached to the center of the support piece via a pin, through which both sides of the central horizontal shaft protrude in an arc shape, and whose peripheral edge at the entrance part is tapered; and both ends of the through-hole. A connecting rod has a through-hole with a substantially rectangular shape, and the center part bulges out slightly larger than the inner diameter of the through-hole of the connecting rod, and the tip part becomes thinner and is rotatably fitted into the through-hole. an eyepiece support frame having a protruding screw rod having a spiral protrusion that fits into the center hole of the adjustment knob;
a connecting piece that is located between the support frame and the eyepiece base and connects and supports the lid and the bottom so that they can be opened and closed; and a lens barrel that is fitted with an eyepiece that is fitted into a projecting tube that projects outside the support frame. This consists in that each component except at least the lens, spring, and pin is made of synthetic resin.

[Embodiment of the invention] Hereinafter, an embodiment of the invention will be described. Reference numeral A shown in the figure is a case body made of synthetic resin that houses the foldable binoculars body inside, and the case body A is the eyepiece base. 3, and a lid part 1 and a bottom part 2 each having a step part 30 fitted therein.

An elongated rectangular locking plate 28 extends from the stepped portion 30, and a rectangular locking plate 28, which is fixedly housed inside the eyepiece base 3, is inserted into two vertical holes drilled near both ends of the locking plate 28. A total of four locking protrusions 25 are inserted, two on the top and bottom of both ends of the shaped connecting piece 24, and
A lid part 1 and a bottom part 2 are connected to each other so as to be openable and closable in the form of a double-page spread around an eyepiece base part 3.

The binoculars body housed inside the case body A is made of synthetic resin parts, has an objective lens 6 attached thereto, and has a lens support piece B that rises and falls according to the opening and closing of the lid part 1 and the bottom part 2 of the case body A. It is composed of a position adjustment mechanism C for the eyepiece lens 27. The support piece B is formed with a notch locking portion 10 that engages with a substantially hook-shaped elastic locking piece 5 extending in the mounting direction on the peripheral edge of the lens frame 4 into which the objective lens 6 is fitted. This notch locking part 10 is a U-shaped notch in the flange part provided at the periphery of the lens frame 4 attachment part of the support piece B so that the objective lens 6 is sandwiched therein.
The elastic locking piece 5 extending in the direction in which the lens frame 4 is attached to the support piece B has elasticity, is slightly inclined inward, and has a tip bent outward in a hook shape. It can be fitted by simply aligning the position of the elastic locking piece 5 with the notch locking part 10 and pushing it in, and it can also be easily removed by pressing the tip of the elastic locking piece 5 from the back side. .

The objective lens 6 is molded from synthetic resin, and the objective lens 6 and the lens frame 4, or the lens frame 4 and the support piece B, or the objective lens 6, the lens frame 4, and the support piece B are each integrally molded. You can also leave it there. And by integrally molding it like this,
Furthermore, the number of parts can be reduced, the manufacturing process can be simplified, and the efficiency of assembly work can be improved.

Further, two support protrusions 7 through which pins 8 with springs 9 are inserted are provided near the center between the two objective lenses 6 attached to the back surface of the support piece B.
Near the upper edge, when the lid 1 and bottom 2 of the case body A are opened and the support piece B is erected by the elasticity of the spring 9, there is a hook-shaped hook portion provided at an appropriate position on the inner surface of the lid 1. A recess 11 is provided at both ends of the lower edge of the support piece B, and a hook 3 provided at an appropriate position on the inner surface of the bottom 2 is provided at both ends of the lower edge of the support piece B.
A locking portion 12 that engages with the locking portion 1 is formed.

The position adjustment mechanism C includes a substantially H-shaped connecting rod 13 that is pivoted to a pin 8 that is inserted through a support protrusion 7 provided on the back surface of the support piece B with a spring 9;
Fitting portion 17A rotatably fitted to the connecting rod 13
The eyepiece support frame 1 has a disc-shaped adjustment knob 17 having a shape of 17, and a screw rod 20 having a spiral protrusion around the periphery that fits into the center hole 18 of the adjustment knob 17.
9, a connecting piece 24 that is located between the support frame 19 and the eyepiece base 3 and connects and supports the lid part 1 and the bottom part 2, and an eyepiece that is fitted into a projecting tube 22 that projects outside the support frame 19. It consists of a lens barrel 26 to which a lens 27 is attached.

The approximately H-shaped connecting rod 13 has two arm portions 14 rotatably attached to a pin 8 supported by the support protrusion 7 of the support piece B, and a hole 21 of the support frame 19.
is slidably inserted into the connecting piece 24 and the eyepiece base 3.
The through hole 15 consists of two sliding contact parts 16 which are fixed with screws to the central shaft part, and both sides of the central shaft part protrude in an arc shape, and the peripheral edge of the entrance part is tapered. Furthermore, both ends thereof have rectangular through holes 15A. Therefore, the through hole 15 has elasticity, and the adjustment knob 17 can be rotated to the connecting rod 13 by simply inserting the fitting portion 17A of the adjustment knob 17, which is large enough to fit into the through hole 15, into the through hole 15. It can be freely inserted and fitted easily. Moreover, since the fitting portion 17A has a shape in which the central portion bulges out to be slightly larger than the inner diameter of the through hole 15 and the tip portion is tapered, the fitting portion 17A fits well with the tapered entrance portion of the through hole 15. Therefore, it is easy to insert and fit, but since the through hole 15 is pressed inside, the position of the connecting rod 13 is fixed without easily coming off. Further, one end of the spring 9 attached to the support piece B is connected to the through hole 1.
5 is inserted into the through hole 15A, and the other end is in contact with the support piece B. Due to the elastic force of the spring 9, the support piece B is becoming undulating. Through hole 15
A lens barrel 26 with an eyepiece 27 attached thereto is inserted into the center hole 18 passing through the center of the adjustment knob 17 inserted through the center of the support frame 19 which is fitted onto the protruding barrel 22 via the eyepiece base 3. Screw rod 2 protruding from
0 is fitted, and the guide protrusion 18A provided near the entrance of the central hole 18 and the linear shape that fits the spirally circumferential protrusion of the screw rod 20,
The screw rod 20 is screwed into the central hole 18 smoothly. Then, the sliding contact portion 16 of the connecting rod 13
A side plate 23 is erected inwardly on the outside of the hole 21 of the support frame 19 through which the sliding contact portion 16 is inserted.
slides on the side plate 23 and is stably inserted into the hole 21. The adjustment knob 17 has a size such that the outer periphery of its disc-shaped portion protrudes from a window 29 provided in the lid part 1 and the bottom part 2, so that the adjustment knob 17 can be rotated from the outside of the case body A. It is becoming possible to do this.

Next, to explain how to use this, open the lid 1 and bottom 2 of the case body A into a double-page spread around the eyepiece base 3, and rotate the adjustment knob 17 protruding from the window 29 of the lid 1. Accordingly, the support frame 19 on which the eyepiece lens 27 is attached is slid with respect to the support piece B which is erected with the objective lens 6 attached thereto, and thereby the focus can be adjusted freely.

That is, against the repulsive force of the spring 9, as shown in FIG.
As shown in FIG. 6, the support piece B, which is folded and stored in the case body A, tries to turn over against the elastic force of the spring 9 when its lid part 1 and bottom part 2 are opened, but the support piece B is not supported. The concave portion 11 and the locking portion 12 provided on the piece B engage with the hook portions 31 on the lid portion 1 and the bottom portion 2, so that the support piece B is fixed in an upright state, and at this time, the adjustment knob 17, the adjustment knob 17 is rotatably fitted and fixed to the approximately H-shaped connecting rod 13, and this connecting rod 13 is inserted into the support protrusion 7 of the support piece B with the spring 9. The position of the adjustment knob 17 is fixed because it is pivoted to the pin 8 that is fixed, and the support frame 19 having the screw rod 20 fitted into the center hole 18 of the adjustment knob 17 is fixed to the screw rod 20. It slides back and forth due to the action of the linear protrusion 18A and the guide protrusion 18A in the central hole 18, which are in sliding contact with each other in a spiral manner. Therefore, since the eyepiece lens 27 is attached to a lens barrel 26 that is attached via the eyepiece base 3 to a projecting barrel 22 that projects from the support frame 19, the action of rotating the adjustment knob 17 is The position can be adjusted forward and backward.

Moreover, when the lid part 1 and the bottom part 2 are closed, the support piece that stands up against the elastic force of the spring 9 by being engaged with the hook part 31 of the lid part 1 and the bottom part 2 as described above. B shows the locked recess 11 and the locking part 1.
2 are pressed by the lid part 1 and the bottom part 2 so as to be released from the hook part 31, and are folded in against the elastic force of the spring 9 and stored in the case body A.

[Effects of the invention] As described above, this invention consists of a case body A consisting of a lid part 1 and a bottom part 2 which are attached to the eyepiece base 3 so as to be openable and closable, and a case body A which is housed in the case body A and which can be raised and lowered by the spring 9. A certain support piece B and an eyepiece 27
It consists of a position adjustment mechanism C that adjusts the position back and forth, so if the lid 1 and bottom 2 of the case body A are opened as necessary, it functions as binoculars, and the lid 1
When the bottom part 2 and the bottom part 2 are closed, it becomes extremely compact and is very convenient to carry. That is, near the upper edge of the support piece B, when the lid part 1 and the bottom part 2 of the case body A are opened and the support piece B stands up due to the elasticity of the spring 9, the support piece B is provided at an appropriate position on the inner surface of the lid part 1. Approximately hook-shaped hook portion 31
A recess 11 is provided at both ends of the lower edge of the support piece B, and similarly, when the support piece B is erected, a locking part 31 that engages with a hook 31 provided at an appropriate position on the inner surface of the bottom part 2 is provided. Since the support piece B housed in the case body A is formed with the part 12, the support piece B tries to turn over against the elastic force of the spring 9 when the lid part 1 and the bottom part 2 are opened. The recessed portion 11 and the locking portion 12 provided therein engage with the hook portions 31 of the lid portion 1 and the bottom portion 2, so that the support piece B can be fixed in an upright state.

The position adjustment mechanism C has a substantially H-shape, is pivotally attached to the center of the support piece B via a pin 8, and is penetrated through with both sides of the center horizontal shaft protruding in an arc shape.
A connecting rod 13 having a through hole 15 with a tapered peripheral edge at the entrance portion and a generally rectangular through hole 15A at both ends, and a connecting rod 1 in the center.
The adjustment knob 17 has a fitting portion 17A that bulges slightly larger than the inner diameter of the through hole 15 of No. 3 and tapers at the tip to be rotatably fitted into the through hole 15. An eyepiece support frame 19 protruding from a threaded rod 20 having a spiral protrusion that fits into the central hole, and an eyepiece support frame 19 which is located between the support frame 19 and the eyepiece base 3 and which is connected to the lid part 1 and the bottom part 2. A connecting piece 24 that is connected and supported so as to be openable and closable, and an eyepiece 27 that is fitted into a projecting tube 22 that projects outside the support frame 19.
Since it is composed of a lens barrel 26 equipped with a lens barrel 26, it has an extremely simplified and simple structure, and the number of parts is small, dramatically increasing the efficiency of assembly in the manufacturing process.

Moreover, since the through-hole 15 is configured as described above and has elasticity, the adjustment knob 17 can be adjusted by simply inserting the fitting portion 17A of the adjustment knob 17, which is sized to fit into the through-hole 15, into the through-hole 15. The fitting part 17A has a shape in which the center part bulges out slightly larger than the inner diameter of the through hole 15 and the tip part becomes thinner. Therefore, it is easy to insert and fit together with the entrance part of the through hole 15 which is tapered, but by pressing the through hole 15 inside, it does not come out easily and the position of the connecting rod 13 is adjusted. Can be firmly fixed.

In addition, among the components of these folding binoculars, at least the parts other than the objective lens 6, the lens body of the eyepiece 27, the spring 9, and the pin 8 are made of synthetic resin, so each part is extremely easy to mold. Furthermore, the parts can be easily joined by fitting them together or gluing them together. Since it is made of synthetic resin, it is lighter than ever before, and can be placed in a pocket of clothing without causing the pocket to sag due to its weight. Also, it will not come in contact with and damage other items inside. Moreover, it has a beautiful appearance and is easy to decorate, and since it does not rust when exposed to water, it can be used as is even if it rains while watching outdoor sports. In addition, as mentioned above, the manufacturing process is extremely simple, so it can be mass-produced at low cost.If the objective lens 6 and eyepiece lens 27 are made of synthetic resin, the weight can be further reduced and the cost can be reduced. It is possible to manufacture.

As explained above, according to this invention, all parts are made of synthetic resin, and since there are only a few parts and the structure is extremely simple and easy to assemble, it can be mass-produced at low cost. It has various practical effects, such as being extremely lightweight and convenient to carry.

[Brief explanation of the drawing]

Figures 1 to 6 show an embodiment of this invention; Figure 1 is a perspective view, Figure 2 is an exploded perspective view,
Fig. 3 is a partially cutaway side view, Fig. 4 is a cross-sectional view of the objective lens support piece, Fig. 5 is a cross-sectional view of the objective lens support piece in a folded state, and Fig. 6 is a cross-sectional view taken along the line X--X in Fig. 5. . A... Case body, B... Support piece, C... Position adjustment mechanism, 1... Lid, 2... Bottom, 3... Eyepiece base, 4... Lens frame, 5... Elastic locking piece. 6...
Objective lens, 7... Support protrusion, 8... Pin, 9...
... Spring, 10 ... Notch locking part, 11 ... Recess, 1
2...Locking part, 13...Connecting rod, 14...Arm part,
15...Through hole, 15A...Through hole, 16...Sliding contact part, 17...Adjustment knob, 17A...Fitting part,
18... Central hole, 18A... Guide projection, 19...
Support frame, 20... Screw rod, 21... Hole, 22...
... Projection tube, 23 ... Side plate, 24 ... Connection piece, 25
... Locking protrusion, 26 ... Lens barrel, 27 ... Eyepiece, 28 ... Locking plate, 29 ... Window, 30 ...
...Step part, 31...Hook part.

Claims (1)

[Scope of utility model registration request] A case body consisting of a lid part and a bottom part attached to the eyepiece base so as to be openable and closable, an objective lens support piece housed in the case body and movable up and down by a spring, and a position adjustment mechanism for adjusting the position of the eyepiece lens back and forth. The support piece is equipped with an objective lens fitted into a lens frame, and near the upper edge of the support piece, the lid and bottom of the case body are opened and the support piece stands up due to the elasticity of the spring. Sometimes, a recess is provided at both ends of the lower edge of the support piece to engage with a substantially hook-shaped hook provided at an appropriate position on the inner surface of the lid, and similarly, when the support piece is erected, a recess is provided at an appropriate position on the inner surface of the bottom. A locking part is formed that engages with a hook part provided at a position, and the position adjustment mechanism has a substantially H-shape and is pivoted to the center of the support piece via a pin, and a connecting rod having a through hole with both sides protruding in an arc shape and having a tapered peripheral edge at the inlet portion; and a through hole with both ends of the through hole being penetrated in a substantially rectangular shape;
An adjustment knob whose center part bulges out slightly larger than the inner diameter of the through-hole of the connecting rod, and whose tip part tapers to form a fitting part that is rotatably fitted into the through-hole, and the center of the adjustment knob. An eyepiece support frame having a protruding threaded rod having a spiral protrusion that fits into the hole, and a lid part and a bottom part which are connected and supported so as to be openable and closable between the support frame and the eyepiece base. It consists of a connecting piece and a lens tube fitted with an eyepiece that is fitted into a protruding tube protruding from the outside of the support frame, and each component other than at least the lens, spring, and pin is made of synthetic resin. Foldable binoculars featuring