JP3216757U - Folding opera glasses - Google Patents

Abstract

[PROBLEMS] The present invention eliminates the difficulty of viewing due to direct sunlight from above and irregular reflection of illumination light from above and below when used, and it can be compactly folded when carried. Provided is a folding opera glass capable of protecting an objective lens. An upper surface portion and a lower surface portion that connect an upper portion and a lower portion of a front surface portion and a rear surface portion, respectively, and a left side surface portion and a right side surface portion that connect left and right surfaces of the front surface portion and the rear surface portion, respectively. The upper surface portion 3 and the lower surface portion 4 have a second mountain fold line r2 and a fifth mountain fold line r5 along the left-right width direction, respectively, and the left side surface portion and the right side surface portion 6 each have a valley fold line K along the vertical width direction. The upper surface portion 3 and the lower surface portion 4 and the left side surface portion and the right side surface portion 6 are formed to be foldable so that the front surface portion 1 and the rear surface portion are close to each other. [Selection] Figure 1

Description

  The present invention relates to a foldable opera glass formed of cardboard for use in sports watching, nature watching, drama and the like.

  Conventionally, lightweight opera glasses equipped with an objective lens and an eyepiece have been used for watching sports, watching nature, watching theater, and the like.

  As this opera glass, for example, as shown in Patent Document 1, lenses are provided on both sides in the longitudinal direction on the front surface of a rectangular box, and a U-shaped portion is fitted in a groove of a substrate fixed on the bottom plate of the box. The adjustment portion consisting of an adjustment piece, a screwing shaft and a support portion in close contact with the center of the U-shaped portion, and the screwing shaft is inserted, and a part of the adjustment piece is placed on the upper surface of the box And an opera glass protruding from the lower surface is disclosed.

Japanese Utility Model Publication No. 51-92138

  However, since the opera glass of Patent Document 1 is formed as a rectangular box as a rigid body, it cannot be folded into a single sheet.

  Moreover, since the opera glass of the above-mentioned patent document 1 is provided with the lens exposed on the front surface of the box, it becomes difficult to see sunlight or illumination light incident on the lens, and when being carried, There were practical problems such as the lens being easily damaged.

  Therefore, the present invention was created in view of the existing circumstances as described above, and can be easily assembled from the unfolded state with a single sheet body, and in use, it is difficult to see due to sunlight or illumination light. It is an object of the present invention to provide a foldable opera glass that can be compactly folded and can protect an objective lens when being carried.

  According to the first aspect of the present invention, there is provided a front surface portion including an objective lens, a rear surface portion including an eyepiece, and an upper surface portion and a lower surface connecting the front surface portion and the upper and lower portions of the rear surface portion, respectively. A foldable opera glass that is connected to the left and right sides of the front part and the rear part, respectively, wherein the upper part and the lower part are respectively along the left-right width direction. The left side surface portion and the right side surface portion each have a valley fold line along the vertical width direction, and the upper surface portion, the lower surface portion, and the left side surface portion so that the front surface portion and the rear surface portion are close to each other. -The problem mentioned above was solved by forming the right side part so that it can be folded.

  According to the foldable opera glass according to this aspect, the upper surface portion / lower surface portion, the left side surface portion / right side surface portion are formed so as to be foldable so that the front surface portion and the rear surface portion are close to each other. It can be folded compactly when carrying.

  The invention of claim 2 according to the present invention solves the above-described problems by providing the upper surface portion and the lower surface portion with flanges protruding forward.

  According to the foldable opera glass according to the second aspect, the upper surface portion and the lower surface portion each include the flange portion protruding forward. It is possible to eliminate difficulty in viewing due to irregular reflection of illumination light from the direction.

  According to a third aspect of the present invention, at the time of folding, the upper surface portion and the lower surface portion are folded into a mountain fold shape along the mountain fold line, and at the same time, the left side surface portion and the right side surface portion are respectively folded along the valley fold line. The above-mentioned problem has been solved by bending the front side part and the rear side part close to each other in a state where the left side part and the right side part are included.

  According to the foldable opera glass according to the third aspect, since the front surface portion and the rear surface portion are folded close to each other while the left side surface portion and the right side surface portion are included, it is folded into a sheet shape when being carried. It will be convenient to carry.

  The invention of claim 4 according to the present invention solves the above-described problem by folding each of the upper surface portion and the lower surface portion with the flange portion contacting the front surface portion and covering the objective lens when folded. did.

  According to the foldable opera glass according to the fourth aspect of the present invention, when folding, each of the flanges of the upper surface portion and the lower surface portion is in contact with the front surface portion. Can be protected. In addition, since the folding force of the mountain fold along the mountain fold line of the upper surface portion and the lower surface portion functions reliably, the collar portion does not bend from the front surface portion.

According to a fifth aspect of the present invention, there is provided a front surface portion including an objective lens, a rear surface portion including an eyepiece, and an upper surface portion and a lower surface connecting the front surface portion and the upper and lower portions of the rear surface portion, respectively. A foldable opera glass comprising: a left side part / right side part connecting the left and right sides of the front part and the rear part; and a flange part protruding forward from the top part and the bottom part, respectively. And
The unfolded state by the sheet body including the cardboard / plastic sheet constituting the foldable opera glass is the first outer side formed in the longitudinal direction along the left-right width direction via the objective lens mounting portion of the front portion. The first valley fold line arranged in parallel on one second valley fold line side so as to form the second valley fold line on the inner side, the second valley fold line on the inner side, and the flange protruding forward of the upper surface portion, and the second valley fold line, The left and right widths via the first adhesive portion bonded to the first fold line, the second fold line formed along the left and right width direction of the upper surface portion, and the eyepiece attachment portion of the rear surface portion A third fold line adjacent to the upper surface portion formed along the direction and a fourth fold line adjacent to the lower surface portion; a fifth fold line formed along the left-right width direction of the lower surface portion; The first portion is formed so as to form the flange portion protruding forward of the lower surface portion. A second adhesive portion bonded to an edge portion outside the valley fold line, and a connecting hole provided on each of the left and right sides of the front surface portion via a sixth mountain fold line so as to form the left side surface portion and the right side surface portion; The front-side protruding connecting portion and the rear-side protruding connecting portion having connecting ends provided on the left and right sides of the rear surface portion via the seventh mountain fold lines are integrally provided to solve the above-described problem. did.

  According to the foldable opera glass according to claim 5, in the longitudinal direction, the first valley fold line on the outer side and the second valley fold line on the inner side are valley-folded, and the first one arranged side by side on the second valley fold line side. Folding a mountain fold line, bonding a first adhesive portion between the second valley fold line and the first mountain fold line, folding a second mountain fold line, and a third mountain fold line adjacent to the upper surface portion; Fold the fourth mountain fold line adjacent to the lower surface part, fold the fifth mountain fold line, bond the second adhesive part to the outer edge of the first valley line, and further, the front part Fold the 6th mountain fold line on each of the left and right sides of the back, fold the 7th mountain fold line on each of the left and right sides of the rear surface portion, The folding opera glass can be easily assembled from the unfolded state of one sheet body.

  With the present invention, it can be easily assembled from the unfolded state with a single sheet body, and in use, it can eliminate the difficulty of viewing due to direct sunlight from above or irregular reflection of illumination light from above and below. Sometimes it is possible to provide a folding opera glass that can be compactly folded and that can protect the objective lens.

It is the perspective view seen from the front side which shows the outline of the use condition of this invention. It is the perspective view seen from the back side similarly showing a use condition. It shows the procedure to change from the use state to the folded state, (a) is a perspective view showing the use state, (b) is a left side portion The perspective view which shows the state which each folds a right side part along a valley fold line in the shape of a valley fold, (c) is a perspective view which shows the folded state. It is a top view which shows an unfolded state.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

<Embodiment>
As shown in FIGS. 1 and 2, the foldable opera glass P according to the present invention includes a front surface portion 1 including an objective lens R1, a rear surface portion 2 including an eyepiece lens R2, and the front surface portion 1. The upper surface portion 3 and the lower surface portion 4 that connect the upper portion and the lower portion of the rear surface portion 2, respectively, and the left surface portion 5 and the right surface portion 6 that connect the left and right surfaces of the front surface portion 1 and the rear surface portion 2, respectively, The upper surface portion 3 and the lower surface portion 4 and the left side surface portion 5 and the right side surface portion 6 are formed so as to be foldable so that the portion 1 and the rear surface portion 2 are close to each other. Equipped with flanges 3A and 4A projecting forward.

  The upper surface portion 3 and the lower surface portion 4 have a second mountain fold line r2 and a fifth mountain fold line r5 along the left-right width direction, respectively, and the left side surface portion 5 and the right side surface portion 6 are valleys along the vertical width direction, respectively. The second fold line r2, the fifth fold line r5, and the valley fold line K are on the same line.

  In addition, the valley fold lines K are respectively connected to the connection holes 8 of the front side protruding connection portions 6A provided on the left and right sides of the front surface portion 1 via the sixth mountain fold lines r6, respectively. It is formed by inserting the connecting end 9 of the rear surface side protruding connecting portion 6B provided via the mountain fold line r7.

  Further, the upper surface portion 3 includes a flange portion 3A protruding forward, and the lower surface portion 4 includes a flange portion 4A protruding forward. The upper surface portion 3 of the flange portion 3A that protrudes forward is formed by a first adhesive portion s1 that is bonded between a second valley fold line q2 described later and the first mountain fold line r1. Moreover, the lower surface part 4 is formed with a second adhesive part s1 that is bonded to an edge part on the outer side of a first valley line q1 to be described later.

  As shown in FIG. 4, the unfolded state of the sheet body P1 including the cardboard / plastic sheet constituting the foldable opera glass P is, in the longitudinal direction, in the left-right width direction via the objective lens R1 mounting portion of the front surface portion 1. The first valley fold line q1 on the outer side, the second valley fold line q2 on the inner side, and the flange part 3A protruding forward of the upper surface part 3 are arranged in parallel with one second valley fold line q2 side. A first fold line r1 provided; and a first bonding portion s1 bonded between the second valley fold line q2 and the first fold line r1.

  In addition, the second mountain fold line r2 formed along the left-right width direction of the upper surface portion 3 and the upper surface portion 3 formed along the left-right width direction via the eyepiece R2 attachment site of the rear surface portion 2 An adjacent third fold line r3, a fourth fold line r4 adjacent to the lower surface part 4, a fifth fold line r5 formed along the left-right width direction of the lower surface part 4, and the front of the lower surface part 4 A second adhesive portion s2 that is adhered to an edge portion outside the first valley line q1 so as to form the protruding flange portion 4A.

  Further, the front side protruding connecting portions 6A, 5A having connecting holes 8 provided on the left and right sides of the front surface portion 2 via the sixth mountain fold lines r6 respectively so as to form the left side surface portion 5 and the right side surface portion 6 and the rear side. Rear surface side protruding connecting portions 6B and 5B having connecting ends 9 provided on the left and right sides of the surface portion 2 via the seventh mountain fold line r7 are integrally provided.

  Hereinafter, a method for assembling and folding the folding opera glass having the above-described configuration will be described in detail.

  When assembling, in the longitudinal direction, the outer first valley fold line q1 and the inner second valley fold line q2 are folded, and the first mountain fold line r1 arranged side by side on the second valley fold line q2 side is mountain-folded. The first bonding portion s1 is bonded between the second valley fold line q2 and the first mountain fold line r1.

  Next, the second mountain fold line r2 is folded in a mountain, the third mountain fold line r3 adjacent to the upper surface portion 3 and the fourth mountain fold line r4 adjacent to the lower surface portion 4 are folded in a mountain, and the fifth mountain fold line r5 is Fold and bond the second adhesive portion s2 to the outer edge of the first valley fold line q1.

  Further, the sixth fold line r6 on each of the left and right sides of the front surface portion 1 is fold-folded, the seventh fold line r7 on each of the left and right sides of the rear surface portion 2 is fold-folded, and the front side protruding connecting portions 6A, 5A By inserting the connecting end 9 of the rear side protruding connecting portions 6B and 5B into the connecting hole 8, the folding opera glass is assembled from the unfolded state of one sheet body.

  When folded after use, the upper surface portion 3 and the lower surface portion 4 are moved from the use state shown in FIG. 3A to the second mountain fold line r2 and the fifth mountain fold line r5 as shown in FIG. 3B. Each of the left side surface portion 5 and the right side surface portion 6 is bent along the valley fold line K in a valley fold shape.

  Then, the front surface portion 1 and the rear surface portion 2 come close to each other in a state where the left side surface portion 5 and the right side surface portion 6 are enclosed, and finally, as shown in FIG. Each of the flange portions 3A and 4A comes into contact with the front surface portion 1 and covers the objective lens R1.

  As described above, in the present embodiment, it can be easily assembled from the unfolded state by one sheet P1, and when used, it is visible due to direct sunlight from above or irregular reflection of illumination light from above and below. It is possible to provide a foldable opera glass P that can eliminate the difficulty and can be folded in a compact manner when being carried, and can protect the objective lens.

  The present invention is widely used in various work sites such as construction sites and ship monitoring, in addition to being used for watching sports, watching nature, watching theaters, and the like.

P ... Foldable Opera Glass P1 ... Sheet R1 ... Objective Lens R2 ... Eyepiece K ... Valley Fold Line q1 ... First Valley Fold Line q2 ... Second Valley Fold Line r1 ... First Mountain Fold Line r2 ... Second Mountain Fold Line r3 ... Third Mountain fold line r4 ... 4th mountain fold line r5 ... 5th mountain fold line r6 ... 6th mountain fold line r7 ... 7th mountain fold line s1 ... 1st adhesion part s2 ... 2nd adhesion part 1 ... Front part 2 ... Rear surface part 3 ... Upper surface part DESCRIPTION OF SYMBOLS 4 ... Lower surface part 3A ... Eaves part 4A ... Eaves part 5 ... Left side part 6 ... Right side part 6A ... Front side protrusion connection part 5A ... Front side protrusion connection part 6B ... Rear side protrusion connection part 5B ... Rear side protrusion connection part 8 ... Connecting hole 9 ... Connecting end

Claims (5)

A front surface portion including an objective lens, a rear surface portion including an eyepiece, an upper surface portion and a lower surface portion connecting the front surface portion and the upper and lower portions of the rear surface portion, and the front surface portion and the rear surface portion. A foldable opera glass composed of a left side and a right side connecting the left and right respectively,
The upper surface portion and the lower surface portion each have a mountain fold line along the left-right width direction, and the left side surface portion and the right side surface portion each have a valley fold line along the vertical width direction, and the front surface portion and the rear surface portion are The foldable opera glass is formed so that the upper surface portion / lower surface portion and the left side surface portion / right side surface portion can be folded so as to be close to each other.   2. The foldable opera glass according to claim 1, wherein each of the upper surface portion and the lower surface portion includes a collar portion protruding forward.   At the time of folding, the upper surface portion and the lower surface portion are each folded in a mountain shape along the mountain fold line, and at the same time, the left side surface portion and the right side surface portion are folded in a valley shape along the valley fold line, respectively. The foldable opera glass according to claim 1 or 2, wherein the front surface portion and the rear surface portion are brought close to each other in a state of enclosing the lens.   3. The folding opera glass according to claim 2, wherein at the time of folding, each of the flange portions of the upper surface portion and the lower surface portion is in contact with the front surface portion and covers the objective lens. A front surface portion including an objective lens, a rear surface portion including an eyepiece, an upper surface portion and a lower surface portion connecting the front surface portion and the upper and lower portions of the rear surface portion, and the front surface portion and the rear surface portion. A foldable opera glass composed of a left side portion / right side portion connecting the left and right sides, and a collar portion protruding forward of each of the upper surface portion / lower surface portion,
The unfolded state by the sheet body including the cardboard / plastic sheet constituting the foldable opera glass is the first outer side formed in the longitudinal direction along the left-right width direction via the objective lens mounting portion of the front portion. The first valley fold line arranged in parallel on one second valley fold line side so as to form the second valley fold line on the inner side, the second valley fold line on the inner side, and the flange protruding forward of the upper surface portion, and the second valley fold line, The left and right widths via the first adhesive portion bonded to the first fold line, the second fold line formed along the left and right width direction of the upper surface portion, and the eyepiece attachment portion of the rear surface portion A third fold line adjacent to the upper surface portion formed along the direction and a fourth fold line adjacent to the lower surface portion; a fifth fold line formed along the left-right width direction of the lower surface portion; The first portion is formed so as to form the flange portion protruding forward of the lower surface portion. A second adhesive portion bonded to an edge portion outside the valley fold line, and a connecting hole provided on each of the left and right sides of the front surface portion via a sixth mountain fold line so as to form the left side surface portion and the right side surface portion; A foldable opera characterized in that a front-side protruding connecting portion and a rear-side protruding connecting portion having connecting ends respectively provided on the left and right sides of the rear surface portion via a seventh fold line are integrally provided. glass.

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