JP2021060465A - Folding type telescope - Google Patents

Abstract

To provide a folding type telescope that can have an ocular and an objective in a folded state raised interlocking with each other into a high-precision parallel state through one operation when expanded, and can prevent both lenses from being damaged in the folded state.SOLUTION: A folding type telescope comprises: a lens barrel 3 which can change its shape between a cylindrically expanded shape and a shape folded into a flat plate along a folding line 2 in a length direction; a first link material 4 which is inserted into an ocular side of the lens barrel 3 so that it can be freely raised and tilted down; an ocular 5 which is fitted to a lens-barrel inner part 25 of the first link material 4; a second link material 6 which is inserted more on an ocular side of the lens barrel 3 than the first link material 4 so that it can be freely raised and tilted down; an objective 7 which is fitted to a lens barrel 3 inner part 37 of the second material 6; and a third link material 9 which is connected to a lens barrel 3 outer part of the first link material 4 and a lens barrel 3 outer part of the second link material 6 to constitute a parallel link mechanism 8.SELECTED DRAWING: Figure 3

Description

The present invention relates to a foldable telescope that can be transformed into a flat plate-folded state and a tubular unfolded state.

As a foldable telescope, as shown in Fig. 1, an objective lens b (convex lens) and an eyepiece lens are attached to the side surface of the megaphone body a formed in a divergent tubular shape to amplify the voice in sports support, speeches, meetings, etc. A megaphone d with a telescope, in which c (concave lens) is attached so as to be able to stand and tilt, is known (see Patent Document 1).

According to the telescope-equipped megaphone d, the objective lens b and the eyepiece c are obstructed by tilting the objective lens b and the eyepiece c 90 degrees as shown by the arrow e in FIG. 1 and aligning them with the megaphone body a. It can be used appropriately as a megaphone without any problem, and on the other hand, it can also be used as a telescope when watching sports or the like by erecting the objective lens b and the eyepiece lens c.

Further, as the foldable opera glass f, as shown in FIG. 2, the front surface portion h to which the objective lens g is attached, the rear surface portion i to which the eyepiece lens (not shown) is attached, the front surface portion h, and the rear portion h. The upper surface portion j, the lower surface portion k, the left side surface portion l, and the right side surface portion m are provided to connect the surface portion i, the upper surface portion j and the lower surface portion k have a mountain fold line n, and the left side surface portion l and the right side surface portion m have a valley fold line o. Is known (see Patent Document 2).

According to this foldable opera glass f, from the unfolded state as shown in FIG. 2 (a), the mountain fold line n of the upper surface portion j and the lower surface portion k is mountain-folded as shown in FIG. 2 (b). By valley-folding the valley fold line o of the left side surface portion l and the right side surface portion m, the entire shape is folded in a bellows shape in the optical axis direction of the objective lens g and the eyepiece lens as shown in FIG. It becomes.

Utility Model Registration No. 3168553 Utility Model Registration No. 3216757

By the way, in the megaphone d with a telescope shown in FIG. 1, since the objective lens b and the eyepiece lens c stand and tilt independently, it is necessary to stand the objective lens b and the eyepiece lens c separately when using the telescope. There is, and it is not possible to put it in the telescope state with one touch. Further, since the object looks blurred unless the upright objective lens b and the eyepiece lens c are parallel to each other and the optical axes are aligned with each other, the objective lens b and the eyepiece lens c must be used to make the object look clear. However, since the objective lens b and the eyepiece c do not interlock with each other, fine adjustment is required to make the upright objective lens b and the eyepiece c parallel to each other, which complicates the work. Is.

On the other hand, in the foldable opera glass f shown in FIG. 2, when the folded state of FIG. 2 (c) is deformed to the unfolded state of FIG. 2 (a), the objective lens g mounted on the front portion h and the rear Although the eyepiece lens (not shown) mounted on the surface portion i moves in conjunction with the objective lens g, the objective lens g and the eyepiece lens are not interlocked by the parallel link mechanism. It is difficult to make the eyepiece and the eyepiece parallel with high accuracy, and the object may appear blurred. Further, in the folded state shown in FIG. 2C, the front surface portion h and the rear surface portion i overlap and the objective lens g arranged on the optical axis and the eyepiece lens overlap, so that the eyepiece is stored in the folded state. During transportation, the objective lens g and the eyepiece lens may rub against each other due to vibration or the like, and both lenses may be damaged.

An object of the present invention, which was conceived in consideration of the above circumstances, is a foldable telescope that can be expanded from a folded non-used state and transformed into a used state, and an eyepiece that is tilted when not in use. The objective lens can be erected in conjunction with one touch, and the eyepiece and the objective lens can be brought into a parallel state with high accuracy with high accuracy when standing, and the eyepiece and the objective lens are damaged in the folded and unused state. The purpose is to provide a foldable telescope that can prevent sticking.

According to the present invention, which was devised to achieve the above object, a lens barrel for a telescope that can be freely transformed into a shape developed into a cylinder and a shape folded into a flat plate with fold lines along the longitudinal direction, and a mirror. The first link material attached to the eyepiece side of the cylinder through the lens barrel so that it can stand and tilt freely, the eyepiece lens attached to the inner part of the lens barrel of the first link material, and the mirror rather than the first link material. The second link material attached to the objective side of the cylinder through the lens barrel so that it can stand and tilt freely, the objective lens attached to the inner part of the lens barrel of the second ring material, and the lens barrel of the first ring material. The lens barrel is tubular with a third link material connected to the outer part and the outer part of the lens barrel of the second link material and forming a parallel link mechanism together with the first link material and the second link material. When the first link material and the second link material are both in an upright posture with respect to the lens barrel, the first link material and the second link material are both in a posture along the lens barrel. A foldable telescope is provided, which is in an unused state when the lens barrel is folded into a flat plate.

In the foldable telescope according to the present invention, when the first link material and the second link material are in an upright posture with respect to the lens barrel in the state of use, the first link material and the second link material are placed in the lens barrel. A holding portion for holding in a posture perpendicular to the relative direction may be provided.

In the foldable telescope according to the present invention, the holding portion is formed on the inner surface of the lens barrel and the convex portion formed on the inner portion of at least one of the first link material and the second link material. When the first link material and the second link material have a concave portion and are in a posture perpendicular to the lens barrel developed in a tubular shape, the convex portion engages with the concave portion, and the first link material and the second link material and the second link material are engaged. The convex portion may be separated from the concave portion when the link material is in a posture along the lens barrel developed in a tubular shape.

In the foldable telescope according to the present invention, the holding portion is composed of the edge of at least one of the first link material and the second link material inside the lens barrel, and the first link material and the second link material are formed. A mirror in which at least a part of the edge is pressed against the inner surface of the lens barrel and the first link material and the second link material are developed in a tubular shape when the lens barrel is oriented perpendicular to the tube-shaped lens barrel. The edge may be separated from the inner surface of the lens barrel when the lens is in a posture along the cylinder.

In the foldable telescope according to the present invention, the holding portion is a mirror in which the end of the lens barrel on the eyepiece side is folded inward of the lens barrel and the tip of the folded portion is formed, and the first link material is developed into a tubular shape. When the posture is perpendicular to the cylinder, the inner part of the lens barrel of the first link material comes into contact with the tip of the folded portion, and the first link material is in a posture along the lens barrel developed in a tubular shape. At this time, the inner portion of the lens barrel of the first link material may be separated from the tip of the folded portion.

In the foldable telescope according to the present invention, the lens barrel, the first link material, the second link material, and the third link material may be made of paper or resin, and the outer surface of the lens barrel may be an advertising space. ..

In the foldable telescope according to the present invention, when the lens barrel is expanded into a tubular shape and the first link material and the second link material are in a posture along the lens barrel, the lens barrel becomes a megaphone, and the first link material and the second link material become a megaphone. The material may be in a posture along the lens barrel, and may be a cheering goods for tapping when the lens barrel is folded into a flat plate to make a clap sound.

In the foldable telescope according to the present invention, the lens barrel is deformed into a square cylinder by folding inward one corner of the hexagonal cylinder in the large-expanded state and the hexagonal cylinder in the large-deployed state. It can be transformed into a medium-deployed state and a folded state in which a square cylinder in the medium-deployed state is folded into a flat plate, and the first link material and the second link material are in a posture along the lens barrel when the lens barrel is in the fully expanded state. When it is said, it becomes a megaphone, and when the first link material and the second link material are in an upright posture with respect to the lens barrel when the lens barrel is in the middle unfolded state, it becomes a telescope, and when the lens barrel is in the middle unfolded state, the first link material And when the 2nd link material is in the posture along the lens barrel, it becomes a cheering goods to hit and make a clap sound, and the 1st link material and the 2nd link material are along the lens barrel in the folded state. It may be in an unused state when it is put into a posture.

According to the foldable telescope according to the present invention, the following effects can be exhibited.
(1) Since the eyepiece and the objective lens are tilted and erected in conjunction with each other by the parallel link mechanism, they are tilted by operating the third link material constituting the parallel link mechanism exposed to the outside of the lens barrel. The objective lens and the eyepiece lens can be easily interlocked and stood up with one touch, and the eyepiece lens and the objective lens at the time of standing up can be brought into a parallel state with high accuracy.
(2) Length of the third link material in which the eyepiece and the objective lens form a parallel link mechanism when the first link material and the second link material are tilted and the lens barrel is folded into a flat plate shape in an unused state. Since the lenses are separated by the amount corresponding to the above, it is possible to avoid the situation where the eyepiece and the objective lens overlap, and it is possible to prevent both lenses from being rubbed and damaged in the folded and unused state.
(3) When the first link material and the second link material are tilted and the lens barrel is folded into a flat plate in an unused state, the eyepiece and the objective lens are housed inside the folded lens barrel. Therefore, the lens barrel serves as a protective cover, and it is possible to prevent the eyepiece and the objective lens from being damaged by an external factor in the folded and unused state.

It is a side view of the megaphone with a telescope which shows the conventional example. It is explanatory drawing of the foldable opera glass which shows another conventional example, (a) is the unfolded state, (b) is in the process of folding, (c) is the perspective view which shows the folded state, respectively. It is explanatory drawing which shows the foldable telescope which concerns on one Embodiment of this invention, and is the perspective view which shows the form used as a telescope. FIG. 3 is a perspective view showing a mode in which the foldable telescope of FIG. 3 is used as a megaphone. It is a perspective view when the foldable telescope of FIG. 3 is folded and put into an unused state. It is a development view of the lens barrel of the foldable telescope of FIG. (A) is a developed view of the eyepiece holder of the foldable telescope of FIG. 3, (b) is a developed view of the first link material, the second link material and the third link material, and (c) is an objective lens holder. It is a development view of. It is explanatory drawing which shows the foldable telescope which concerns on 2nd Embodiment of this invention, and is the perspective view which shows the form used as a megaphone. It is a perspective view which shows the form used as a cheering goods which makes a clap sound by hitting the foldable telescope of FIG. It is a perspective view which shows the mode in which the foldable telescope of FIG. 8 is used as a telescope. It is a perspective view when the foldable telescope of FIG. 8 is folded and put into an unused state.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, other specific numerical values, etc. shown in the embodiment are merely examples for facilitating the understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are designated by the same reference numerals to omit duplicate description, and elements not directly related to the present invention are not shown. To do.

(Overview of Folding Telescope 1)
As shown in FIGS. 3, 4, and 5, the foldable telescope 1 according to the embodiment of the present invention is folded into a flat plate shape with a tubular shape and fold lines 2 along the longitudinal direction. A lens barrel 3 for a telescope that can be deformed into a shape, a first link material 4 that is attached to the eyepiece side of the lens barrel 3 through the lens barrel 3 so that it can stand and tilt freely, and a lens barrel of the first link material 4. The eyepiece 5 attached to the inner part of 3 and the second link material 6 attached to the objective side of the lens barrel 3 more than the first link material 4 so as to stand and tilt freely through the lens barrel 3. 2 The objective lens 7 attached to the inner part of the lens barrel 3 of the ring material 6, the outer part of the lens barrel 3 of the first ring material 4, and the outer part of the lens barrel 3 of the second link material 6. It is connected and includes a third link material 9 which is connected and constitutes a parallel link mechanism 8 together with the first link material 4 and the second link material 6.

In this foldable telescope 1, as shown in FIG. 3, the lens barrel 3 is expanded in a tubular shape, and both the first link material 4 and the second link material 6 are in an upright posture with respect to the lens barrel 3. When the lens barrel 3 is folded into a flat plate, the first link material 4 and the second link material 6 are both in a posture along the lens barrel 3 and are in an unused state, as shown in FIG. .. Hereinafter, each component of the foldable telescope 1 according to the present embodiment will be described.

(Lens barrel 3)
As shown in FIGS. 3 to 5, the lens barrel 3 is deformable into a shape developed into a tubular shape and a shape folded into a flat plate shape by fold lines 2 along the longitudinal direction, and an eyepiece is provided inside the lens barrel 3. It supports the lens 5 and the objective lens 7. The lens barrel 3 is formed so as to extend from the eyepiece 5 side to the objective lens 7 side. This is because the lens barrel 3 is used as a megaphone in the state of FIG. When not used as a megaphone, the lens barrel 3 may be straight instead of widened. The cross-sectional shape of the lens barrel 3 is square in this embodiment, but it may be rectangular, hexagonal, triangular, circular, or the like.

FIG. 6 shows a developed view of the lens barrel 3 of the present embodiment. In the lens barrel 3, four side surface portions 3a formed in an elongated trapezoid are connected by a fold line 2 (dashed line), and each fold line 2 is folded 90 degrees to form a square with a divergent cross section. It becomes a cylinder. A glue margin 3b is connected to one of the side surface portions 3a at both ends by a fold bar 2 along the longitudinal direction, and the fold bar 2 is folded 90 degrees and the side surface portion 3a at the opposite end is connected. By gluing to the inner surface, the four side surface portions 3a become tubular (see FIG. 3).

As shown in FIG. 6, the folded portion 3c is connected to each of the four side surface portions 3a on the eyepiece side by a folding streak 10. By folding these fold lines 10 by 180 degrees, as shown in FIG. 3, each folded portion 3c is in a state along the inner surface of the lens barrel 3, and the opening 11 on the eyepiece side of the lens barrel 3 is opened by the folded portion 3c. It is partitioned. Since the edge of the opening 11 is rounded by the creases 10 of the folded-back portion 3c, when the user uses it as a telescope, even if the edge of the opening 11 is pressed around the eyes, the area around the eyes remains. It can be prevented from being damaged.

As shown in FIG. 6, in one of the side surface portions 3a, an elongated slit-shaped first hole 12 is formed on the eyepiece side, and an elongated slit-shaped second hole 13 is formed on the objective side of the first hole 12. Has been done. As shown in FIG. 3, the distance between the first hole 12 and the second hole 13 is adjusted to the length of the third link material 9, and the first link material 4 is penetrated through the first hole 12. The second link material 6 is penetrated through the second hole 13 and is tiltably attached.

(1st link material 4)
FIG. 7B shows a development view of the first link material 4, the second link material 6, and the third link material 9. The first link material 4 has a pair of plate bodies 15 connected by fold bars 14, and has a double plate in which the fold bars 14 are folded 180 degrees and the plate bodies 15 are bonded to each other. The first link material 4 is composed of a narrow portion 15a that is inserted into the lens barrel 3 when inserted into the first hole 12 shown in FIG. 6 and a wide portion 15b that is exposed to the outside of the lens barrel 3. The narrow portion 15a is narrower than the slit width of the first hole 12, and the wide portion 15b is wider than the slit width of the first hole 12.

(2nd link material 6)
As shown in FIG. 7B, the second link material 6 also has a pair of plate bodies 17 connected by the fold lines 16 like the first link material 4, and the fold lines 16 are folded 180 degrees in a mountain fold. It has a double plate in which the plate bodies 17 are bonded to each other. The second link material 6 is composed of a narrow portion 17a that is inserted into the lens barrel 3 when inserted into the second hole 13 shown in FIG. 6 and a wide portion 17b that is exposed to the outside of the lens barrel 3. The narrow portion 17a is narrower than the slit width of the second hole 13, and the wide portion 17b is wider than the slit width of the second hole 13.

(Third link material 9)
As shown in FIG. 7B, the third link material 9 has creases 18 at one end of the plate body 15 constituting the first link material 4 and one end of the plate body 17 forming the second link material 6, respectively. , And the plate bodies 20 connected by 19 and the plate bodies 23 and 24 connected by folding lines 21 and 22 to the two opposite sides of the plate body 20, respectively, and each folding line 21 and 22 is mountainized by 180 degrees. It is composed of a triple plate that is folded and the plates 20, 23, and 24 are bonded to each other. The third link material 9 is connected to the first link material 4 via the fold bar 18, and is connected to the second link material 6 via the fold bar 19.

(Parallel link mechanism 8)
As shown in FIG. 3, the first link material 4, the second link material 6, and the third link material 9 described above constitute the parallel link mechanism 8. It is in contact with the fold bar 18 connecting the first link material 4 and the third link material 9, the fold bar 19 connecting the second link material 6 and the third link material 9, and the first hole 12 of the first link material 4. The portion (the connecting portion between the narrow portion 15a and the wide portion 15b) and the portion in contact with the second hole 13 of the second link material 6 (the connecting portion between the narrow portion 17a and the wide portion 17b) are parallel link mechanisms. It becomes the pivot (rotation axis) of 8 (see FIGS. 3 and 4).

(Eyepiece 5)
As shown in FIG. 3, an eyepiece 5 is attached to the inner portion of the lens barrel 3 of the first link material 4 via a holder 25 that forms a part of the first link material 4. FIG. 7A shows a developed view of the holder 25 of the eyepiece lens 5. The holder 25 was connected to the main plate 27 in which the hole 26 to which the eyepiece 5 was attached was formed, the sub plate 29 connected to the side side of the main plate 27 by a fold line 28, and the upper side of the main plate 27 by a fold line 30. It has a half plate 31 and a half plate 33 connected to the lower side of the main plate 27 by a fold bar 32, and each of the fold bars 28, 30, 32 is folded 180 degrees to each other. It is composed of a triple plate with a bond.

As shown in FIG. 7A, holes 34 are formed in the sub-plate 29 as in the main plate 27, and semi-circular notches 35 and 36 are formed in the half plates 31 and 33. When the main plate 27, the sub plate 29, the half plates 31 and 33 are folded and adhered by the fold lines 28, 30 and 32, the eyepiece lens 5 (for example, a concave lens) is used as an adhesive at the positions of the holes 26 and 34 and the notches 35 and 36. It is attached with. Further, when the plates 27, 29, 31, 33 are folded and bonded by the folding bars 28, 30, 32, the narrow portion 15a of the first link material 4 shown in FIG. 7B is folded by the folding bars 14. Then, in a state of being inserted into the first hole 12 shown in FIG. 6, it is adhered to the inner surfaces of the plates 27, 29, 31, 33. As a result, as shown in FIG. 3, the holder 25 is housed in the lens barrel 3 and interlocks with the first link material 4. As the material of the eyepiece 5, transparent plastic, glass, or the like is used.

(Objective lens 7)
As shown in FIG. 3, an objective lens 7 is attached to the inner portion of the lens barrel 3 of the second link material 6 via a holder 37 that forms a part of the second link material 6. FIG. 7C shows a developed view of the holder 37 of the objective lens 7. The holder 37 is connected to the main plate 39 in which the hole 38 to which the objective lens 7 is attached is formed, the sub plate 41 connected to the side side of the main plate 39 by a fold line 40, and the upper side of the main plate 39 by a fold line 42. It has a half plate 43 and a half plate 45 connected to the lower side of the main plate 39 by a fold bar 44, and each of the fold bars 40, 42, 44 is folded 180 degrees and the plates 39, 41, 43, 45 are connected to each other. It is composed of a triple plate with a bond.

As shown in FIG. 7C, holes 46 are formed in the sub-plate 41 as in the main plate 39, and semi-circular notches 47 and 48 are formed in the half plates 43 and 45. When the main plate 39, the sub plate 41, and the half plates 43, 45 are folded and bonded by the fold lines 40, 42, 44, the objective lens 7 (for example, a convex lens) is adhered to the positions of the holes 38, 46 and the notches 47, 48. It can be installed with. Further, when the plates 39, 41, 43, 45 are folded and bonded at the folding bars 40, 42, 44, the narrow portion 17a of the second link material 6 shown in FIG. 7B is folded at the folding bars 16. Then, in a state of being inserted into the second hole 13 shown in FIG. 6, it is adhered to the inner surface of each of the plates 39, 41, 43, 45. As a result, as shown in FIG. 3, the holder 37 is housed in the lens barrel 3 and interlocks with the second link material 6. As the material of the objective lens 7, transparent plastic, glass, or the like is used.

(Holding part 49)
In this foldable telescope 1, as shown in FIG. 3, when the first link material 4 and the second link material 6 are in an upright posture with respect to the lens barrel 3, the first link material 4 and the second link material 4 and the second link material 6 are in an upright posture. Holding portions 49 and 50 for holding the link material 6 in a posture perpendicular to the lens barrel 3 are provided. The holding portion 49 is formed on the convex portion 51 formed on the inner portion (holder 25) of the lens barrel 3 of the first link material 4 and on the inner surface (glue allowance 3b) of the lens barrel 3 so as to engage with the convex portion 51. The holding portion 50 is composed of a concave portion 52 formed therein, and the holding portion 50 is formed of a convex portion 53 formed in an inner portion (holder 37) of the lens barrel 3 of the second link material 6 and a lens barrel 3 for engaging with the convex portion 53. It is composed of a recess 54 formed on the inner surface (glue allowance 3b).

As shown in FIG. 6, the recesses 52 and 54 are formed of substantially V-shaped notches formed in the glue margin 3b of the lens barrel 3 at intervals in the longitudinal direction (eyepiece objective direction). The position of the notch (recess 52) on the eyepiece side is such that the distance from the fold line 10 is adjusted to the distance from the first hole 12 and the fold line 10, and the position of the notch (recess 54) on the objective side is The distance from the fold line 10 is adjusted to the distance from the second hole 13 and the fold line 10. The distance between these cut portions (recesses 52, 54) is adjusted to the length of the third link material 9 constituting the parallel link mechanism 8 (see FIG. 3).

As shown in FIG. 7A, the convex portion 51 is composed of a protruding portion formed on the lower side of the sub plate 29 of the holder 25 for the eyepiece lens 5. The protruding portion (convex portion 51) protrudes downward from the lower side of the holder 25 when the main plate 27, the sub plate 29, the half plates 31 and 33 are folded by the folding lines 28, 30 and 32 to form the holder 25 (FIG. 3), the first link material 4 is engaged with and disengaged from the cut portion (recessed portion 52) according to the upright tilt (see FIG. 4). Similarly, the convex portion 53 includes a protruding portion formed on the lower side of the sub-plate 41 of the holder 37 for the objective lens 7. The protruding portion (convex portion 53) protrudes downward from the lower side of the holder 37 when the main plate 39, the sub plate 41, the half plates 43, and 45 are folded by the folding lines 40, 42, and 44 to form the holder 37 (FIG. 3), the second link material 6 is engaged with and disengaged from the cut portion (recessed portion 54) according to the upright tilt (see FIG. 4).

As shown in FIG. 3, the holding portions 49 and 50 have a convex portion 51 when the first link material 4 and the second link material 6 are in a posture perpendicular to the lens barrel 3 developed in a tubular shape. , 53 engage with the recesses 52 and 54, respectively, to maintain the vertical posture of the first link material 4 and the second link material 6, and as shown in FIG. 4, the first link material 4 and the second link material 6 When the posture is taken along the lens barrel 3 developed in a tubular shape, the convex portions 51 and 53 are separated from the concave portions 52 and 54, respectively, and the vertical holding of the first link material 4 and the second link material 6 is released. To. The holding portions 49 and 50 may be provided on only one of the first link material 4 and the second link material 6. This is because the first link material 4 and the second link material 6 are interlocked by the parallel link mechanism 8, so that when one of them is vertical, the other is also vertical.

(Another holding part 55)
Further, as shown in FIG. 3, the foldable telescope 1 has a first link material 4 and a first link material 4 and a second link material 6 when the first link material 4 and the second link material 6 are in an upright posture with respect to the lens barrel 3. 2 It has another holding portion 55 that holds the link material 6 in a posture perpendicular to the lens barrel 3. Another holding portion 55 is formed by the tip of a folded portion 3c in which the end portion of the lens barrel 3 on the eyepiece side is folded inward of the lens barrel 3, and as shown in FIG. 3, the first link material 4 is expanded in a tubular shape. When the posture is perpendicular to the lens barrel 3, the inner portion of the lens barrel 3 (holder 25 for the eyepiece 5) of the first link material 4 comes into contact with the tip of the folded-back portion 3c, and the first When the vertical posture of the link material 4 is maintained and the first link 4 material is in a posture along the lens barrel 3 developed in a tubular shape as shown in FIG. 4, the lens barrel 3 of the first link material 4 is held. The inner portion (holder 25 for the eyepiece 5) is separated from the tip of the folded-back portion 3c, and the vertical holding of the first link material 4 is released.

(Another holding part)
Further, the following other holding portion is also conceivable. This holding portion is composed of the edge of at least one of the first link material 4 and the second link material 6 inside the lens barrel 3 (plate-shaped holders 25 and 37), and as shown in FIG. When the 1-link material 4 and the 2nd link material 6 are in a posture perpendicular to the lens barrel 3 developed in a tubular shape, at least a part of the edge (for example, the side edge) of the holders 25 and 37 is a mirror. The first link material 4 and the second link material 6 are pressed against the inner surface of the cylinder 3 to maintain the vertical posture, and as shown in FIG. 4, the first link material 4 and the second link material 6 are developed into a tubular shape. When the posture is taken along the lens barrel 3, the edges of the holders 25 and 37 are separated from the inner surface of the lens barrel 3, and the vertical holding of the first link material 4 and the second link material 6 is released.

(Action / effect)
According to the foldable telescope according to the present embodiment, the following effects can be exhibited.

In this foldable telescope 1, as shown in FIG. 3, the lens barrel 3 is expanded in a tubular shape, and both the first link material 4 and the second link material 6 are in an upright posture with respect to the lens barrel 3. When it is in use, both the first link material 4 and the second link material 6 are tilted in a posture along the lens barrel 3 as shown in FIG. 4, and the lens barrel 3 is flattened as shown in FIG. When folded, it becomes unused.

When switching between the used state and the non-used state, as shown in FIGS. 3 and 4, the eyepiece 5 and the objective lens 7 are composed of the first link material 4, the second link material 6, and the third link material 9. Since the parallel link mechanism 8 interlocks and tilts and stands up, the tilted eyepiece 5 and the objective lens 7 can be easily interlocked with one touch by operating the third link material 9 exposed to the outside of the lens barrel 3. The eyepiece 5 and the objective lens 7 at the time of standing can be brought into a parallel state with high accuracy. Therefore, when used as a telescope, the upright eyepiece 5 and the objective lens 7 can be accurately parallel to each other and their optical axes are aligned with each other, so that the object can be clearly seen without blurring. ..

As shown in FIG. 5, when the first link material 4 and the second link material 6 are tilted to fold the lens barrel 3 into a flat plate in an unused state, the eyepiece lens 5 and the objective lens 7 are connected by a parallel link mechanism. Since the third link material 9 constituting the eyepiece 8 is separated by the length corresponding to the length of the third link material 9, it is possible to avoid a situation in which the eyepiece lens 5 and the objective lens 7 overlap each other. Therefore, when a large number of foldable telescopes 3 folded into a flat plate in an unused state are stacked and stored or transported, it is possible to avoid a situation in which the eyepiece lens 5 and the objective lens 7 are rubbed against each other and damaged.

As shown in FIG. 5, when the first link material 4 and the second link material 6 are tilted to fold the lens barrel 3 into a flat plate in an unused state, the eyepiece lens 5 and the objective lens 7 are folded. Since the lens barrel 3 is housed inside the lens barrel 3, the lens barrel 3 serves as a protective cover, and it is possible to prevent the eyepiece lens 5 and the objective lens 7 from being damaged by an external factor in the folded and unused state. Therefore, when the foldable telescope 1 is folded and stored or transported in an unused state, it is possible to prevent the eyepiece lens 5 and the objective lens 7 from being damaged by trauma.

(Functions of holding parts 49 and 50)
In the used state shown in FIG. 3, the upright first link material 4 and the second link material 6 are held in a posture perpendicular to the lens barrel 3 by the holding portions 49 and 50. That is, the convex portion 51 (protruding portion) of the first link material 4 that stands up engages with the concave portion 52 (cut portion) in the lens barrel 3, and the convex portion 53 (protruding portion) of the second link material 6 becomes. Since it engages with the recess 54 (cut portion) in the lens barrel 3, the first link material and the second link material are held in a posture perpendicular to the lens barrel 3. As a result, when used as a telescope, the eyepiece lens 5 and the objective lens 7 can be held in a state where they are accurately parallel to each other and the optical axes are accurately aligned, and a clear field of view without distortion can be ensured.

(Use as a megaphone and cheering goods)
Further, in the foldable telescope 1 according to the present embodiment, as shown in FIG. 4, the lens barrel 3 is deployed in a tubular shape, and the first link material 4 and the second link material 6 are in a posture along the lens barrel 3. When the lens barrel 3 becomes a megaphone, and as shown in FIG. 5, the first link material 4 and the second link material 6 are in a posture along the lens barrel 3, and the lens barrel 3 is folded into a flat plate shape. It will be a cheering goods for hitting and making a clap sound.

When used as the megaphone shown in FIG. 4, the user presses the circumference of the mouth against the eyepiece-side opening 11 of the lens barrel 3 developed in a tubular shape to emit sound. At this time, when the user holds the third link material 9 together with the lens barrel 3 so as to press it against the outer surface of the lens barrel 3, the lens barrel of the first link material 4 is inside the lens barrel 3 which is the main body of the megaphone. The inner part of 3 (holder 25 for eyepiece 5) and the inner part of the lens barrel 3 of the second link material 6 (holder 37 for objective lens 7) are held in a posture along the inner surface of the lens barrel 3. Therefore, the holder 25 for the eyepiece 5 and the holder 37 for the objective lens 7 in the housing 3 do not interfere with the loudspeaker, and the eyepiece 5 and the objective lens 7 are prevented from being soiled with spit. Since the lens barrel 3 which is the main body of the megaphone is formed in a divergent shape by hanging from the eyepiece 5 side to the objective lens 7 side, it can exhibit an excellent loudspeaker function as compared with a straight one. Since the opening 11 on the eyepiece side of the lens barrel 3 that the user presses around the mouth is rounded by the folded-back portion 3c, it is possible to prevent the area around the user's mouth from being damaged.

When used as the cheering goods shown in FIG. 5, the user grasps the eyepiece side of the lens barrel 3 folded into a flat plate with one hand, and taps the objective side of the lens barrel 3 against the other hand. Then, the inner surfaces of the lens barrels 3 folded into a flat plate collide with each other, and a so-called clap sound is generated, which is useful for cheering when watching sports or the like.

(Use as an advertising medium)
Further, in the foldable telescope 1 according to the present embodiment, the lens barrel 3, the first link material 4, the second link material 6 and the third link material 9 shown in FIGS. 3 to 5 are made of paper or resin. The outer surface of the lens barrel 3 and the outer surface of the third link material 9 are the advertising space S. As shown in FIG. 6, on the outer surface of the lens barrel 3, a flat and wide advertising space S in which four side surface portions 3a are connected can be secured in the developed view, so that it is easy to print an advertisement.

In the advertising space S shown in FIG. 6, for example, advertisements of sponsor companies of sports competitions such as baseball, soccer, rugby, and swimming are displayed, and the foldable telescope 1 is folded at the competition venue or the like. It is conceivable to distribute it to spectators in a state (unused state). Since it is not bulky in the folded state, a large number of foldable telescopes 1 can be stored (stocked) compactly.

(Second embodiment)
8 to 11 show a foldable telescope 1a according to a second embodiment of the present invention. The foldable telescope 1a according to the second embodiment has the same basic configuration as the foldable telescope 1 according to the first embodiment described with reference to FIGS. 3 to 7, and only the configuration of the lens barrel 3 is formed. Is different. Therefore, the same reference numerals will be given to the same configurations as those of the first embodiment, and the description thereof will be omitted, and the lens barrel 3 different from the first embodiment will be described.

The lens barrel 3 of the foldable telescope 1a according to the second embodiment is in a greatly expanded state as shown in FIG. 8 and in a greatly expanded state as shown in FIGS. 9 and 10. One corner A of the hexagonal cylinder is folded inward and deformed into a square cylinder shape, and as shown in FIG. 11, the square cylinder in the middle unfolded state is deformed into a flat plate shape. It is free.

As shown in FIG. 8, this foldable telescope 1a becomes a megaphone when the lens barrel 3 is in the fully deployed state and the first link material 4 and the second link material 6 are in a posture along the lens barrel 3. As shown in FIG. 9, when the lens barrel 3 is in the middle-deployed state and the first link material 4 and the second link material 6 are in a posture along the lens barrel 3, they serve as cheering goods for tapping to make a clap sound. As shown in FIG. 10, when the lens barrel 3 is in the middle-deployed state and the first link material 4 and the second link material 6 are in an upright posture with respect to the lens barrel 3, the mirror becomes a telescope, and as shown in FIG. When the cylinder 3 is in the folded state and the first link material 4 and the second link material 6 are in a posture along the lens barrel 3, it is in an unused state.

(Use as a megaphone)
In the lens barrel 3 shown in FIG. 8, in the state of the developed view, six side surface portions 3a formed in an elongated trapezoid are connected by fold lines 2, and each fold line 2 is folded by 120 degrees. It becomes a hexagonal cylinder with a divergent cross section. Glue margins 3b are connected to the side surface portions 3a at both ends along the longitudinal direction, and by gluing the glue margins 3b to each other, the six side surface portions 3a become hexagonal tubular (largely expanded state). In the state of FIG. 8, it is used as a megaphone.

(Use as support goods)
The lens barrel 3 in the large unfolded state shown in FIG. 8 is deformed into a square tube shape as shown in FIG. 9 by folding one corner (vertex A) of the hexagonal tube inward, and is in the medium unfolded state. At this time, the apex A, the apex B, the apex C, and the apex D in FIG. 8 are moved to the apex A, the apex B, the apex C, and the apex D in FIG. (Large unfolded state) is transformed into a square tube (medium unfolded state). In the state of FIG. 9, it is used as a cheering goods for hitting and making a clap sound. The user grasps the eyepiece side of the square tubular lens barrel 3 with one hand and taps the objective side of the lens barrel 3 against the other hand. Then, the tip of the glue margin portion 3b collides with the inner corner 3d of the lens barrel 3, and a so-called clap sound is generated. Since the clap sound reverberates inside the square tubular lens barrel 3, a louder sound than in the first embodiment is generated.

(Use as a telescope)
As shown in FIG. 10, the lens barrel 3 is in the middle-deployed state, and the first link material 4 and the second link material 6 are raised with respect to the lens barrel 3 to be in a vertical posture, so that the inside of the lens barrel 3 is in a vertical position. The eyepiece 5 and the objective lens 7 are perpendicular to the lens barrel 3 and parallel to each other, forming a telescope. Here, since a partition exists inside the lens barrel 3 in the middle-deployed state so that a part of the lens barrel 3 is folded and partitions diagonally, the first link material 4 is used so as not to interfere with the partition. The inner part of the lens barrel 3 (holder 25 for the eyepiece 5) and the inner part of the lens barrel 3 of the second link material 6 (holder 37 for the objective lens 7) are formed in a triangular shape (triangular plate). Has been done.

(Unused state)
The lens barrel 3 in the middle-expanded state shown in FIG. 10 is folded into a flat plate shape as shown in FIG. 11 by crushing the square cylinders so that the opposing angles (vertexs E and F) are close to each other. As shown in FIG. 11, the lens barrel 3 is folded by the folding streaks 2, and the first link material 4 and the second link material 6 are in a posture along the lens barrel 3, so that the lens barrel 3 is in an unused state. Since it is not bulky when not in use, it can be stored (stocked) compactly by stacking a large number of foldable telescopes.

(Action / effect)
Since the basic operation and effect of the foldable telescope 1a according to the second embodiment shown in FIGS. 8 to 11 are the same as those of the first embodiment described with reference to FIGS. 3 to 7, the description thereof will be omitted. ..

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, and various modifications in the scope of claims are described. It goes without saying that the examples or modified examples also belong to the technical scope of the present invention.

The present invention can be used for a foldable telescope that can be transformed into a flat plate-folded state and a tubular unfolded state.

1 Folding telescope 2 Folding streaks 3 Lens barrel 3c Folded part 4 1st link material 5 Eyepiece 6 2nd link material 7 Objective lens 8 Parallel link mechanism 9 3rd link material 25 Inside the lens barrel of the 1st link material Holder for eyepiece as a part 37 Holder for objective lens as a part inside the lens barrel of the second link material 49 Holding part 50 Holding part 51 Convex part 52 Concave part 53 Convex part 54 Recessed part 55 Holding part S Advertising space

Claims (8)

A lens barrel for a telescope that can be transformed into a shape that expands into a tubular shape and a shape that is folded into a flat plate with fold lines along the longitudinal direction, and a lens barrel that penetrates the eyepiece side of the lens barrel and tilts upright. The freely attached first link material, the eyepiece attached to the inner portion of the lens barrel of the first link material, and the lens barrel closer to the objective side of the lens barrel than the first link material. A second link material that penetrates and is attached so as to be able to stand and tilt, an eyepiece attached to the inner portion of the lens barrel of the second ring material, and an outer portion of the lens barrel of the first ring material. And a third link material connected to the outer portion of the lens barrel of the second link material and forming a parallel link mechanism together with the first link material and the second link material.
When the lens barrel is expanded into a tubular shape and both the first link material and the second link material are in an upright posture with respect to the lens barrel, the lens barrel is in a used state, and the first link material and the second link are in use. A foldable telescope characterized in that both materials are in a posture along the lens barrel and are in an unused state when the lens barrel is folded into a flat plate shape. In the usage state, when the first link material and the second link material are in an upright posture with respect to the lens barrel, the first link material and the second link material are perpendicular to the lens barrel. The foldable telescope according to claim 1, further comprising a holding portion for holding in a proper posture. The holding portion has a convex portion formed on the inner portion of the lens barrel at least one of the first link material and the second link material, and a concave portion formed on the inner surface of the lens barrel. When the first link material and the second link material are in a posture perpendicular to the lens barrel developed in a tubular shape, the convex portion engages with the concave portion, and the first link material and the first link material and the first link material. 2. The foldable telescope according to claim 2, wherein the convex portion is separated from the concave portion when the link material is in a posture along the lens barrel developed in a tubular shape. The holding portion is composed of an edge of at least one of the first link material and the inner portion of the lens barrel of the second link material, and the first link material and the second link material are developed into a tubular shape. When the posture is perpendicular to the lens barrel, at least a part of the edge edge is pressed against the inner surface of the lens barrel, and the first link material and the second link material are developed into a tubular shape. The foldable telescope according to claim 2, wherein the end edge is separated from the inner surface of the lens barrel when the lens barrel is in a posture along the lens barrel. The holding portion comprises the tip of a folded portion in which the end portion of the lens barrel on the eyepiece side is folded inward of the lens barrel, and the first link material is perpendicular to the lens barrel developed in a tubular shape. When the posture was taken, the inner portion of the lens barrel of the first link material came into contact with the tip of the folded portion, and the first link material was made to be in a posture along the lens barrel developed in a tubular shape. The foldable telescope according to claim 2, wherein the inner portion of the lens barrel of the first link material is separated from the tip of the folded portion. The claim is characterized in that the lens barrel, the first link material, the second link material, and the third link material are made of paper or resin, and the outer surface of the lens barrel serves as an advertising space. The foldable telescope according to any one of 1 to 5. When the lens barrel is developed into a tubular shape and the first link material and the second link material are in a posture along the lens barrel, it becomes a megaphone, and the first link material and the second link material are the lens barrel. The folding according to any one of claims 1 to 6, characterized in that the lens barrel is in a posture according to the above and serves as a cheering goods for tapping and making a clap sound when the lens barrel is folded into a flat plate shape. Ceremony telescope. The lens barrel is expanded into a hexagonal cylinder, and the lens barrel is deformed into a square cylinder by folding one corner of the hexagonal cylinder inward. It can be transformed into a folded state in which the cylinder is folded into a flat plate.
When the first link material and the second link material are in a posture along the lens barrel when the lens barrel is in a fully expanded state, it becomes a megaphone.
When the first link material and the second link material are in an upright posture with respect to the lens barrel while the lens barrel is in the middle-deployed state, it becomes a telescope.
When the first link material and the second link material are in a posture along the lens barrel when the lens barrel is in the middle-deployed state, it becomes a cheering goods for tapping and making a clap sound.
Any of claims 1 to 6, wherein the first link material and the second link material are in an unused state when the lens barrel is in a folded state and the second link material is in a posture along the lens barrel. The foldable telescope according to item 1.

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