JP3005565U - Aiming mechanism - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an aiming mechanism with a simple structure and capable of handling the aiming at low cost. [Structure] An eyepiece tube retaining ring fixed to an eyepiece barrel, an eyepiece ring externally fitted to the eyepiece tube retaining ring and slidable along the axial direction, and fixed to the outer periphery of the eyepiece ring. And a click locking mechanism for locking the eyepiece ring by pushing it toward the eyepiece barrel and the pulling position pulled out from the eyepiece holding ring. The mechanism is formed with an overhanging piece that is formed on the eyepiece tube retaining ring, an engaging protrusion that is provided on the tip of the overhanging piece, and an eyepiece ring that defines the pull-out position by engaging with the engaging protrusion. First to do
And a second locking hole that defines a pushing position by engaging with the locking hole and the engaging projection.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an eyepiece mechanism attached to an eyepiece lens barrel and adapted to contact the periphery of an observer's eye, for example, an eyepiece mechanism attached to an eyepiece lens barrel of binoculars.

[0002]

[Prior art]

 Conventionally, as binoculars in which two telescopic optical systems are arranged in parallel with their optical axes in parallel, for example, as a prior application devised by the applicant of the present application, Japanese Patent Application Laid-Open No. 4-174411 (Application publication date: 1992) There is a device whose application was published on June 22). In this prior invention, eyepieces are attached to both eyepiece barrels, and the eyepieces provided on the eyepieces are made of elastically deformable rubber into a cylindrical shape. When the observer who is not wearing the binoculars uses the binoculars, the eyepiece should be projected backward, and when the observer wearing the eyeglasses uses the binoculars, the eyepiece should be bent forward. The eyeglass lens is used so that it directly contacts the rear edge of the eye ring.

[0003]

[Problems to be solved by the device]

 However, in order for an observer wearing glasses to fold and use such a rubber eyepiece, this cylindrical eyepiece must be folded back over the entire circumference, and this work is considerably troublesome. , Improvement is requested.

[0004]

[The purpose of the device]

 The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide an aiming mechanism which has a simple structure and which can be used at low cost.

Another object of the present invention is to provide an eyepiece mechanism capable of taking in and out the eyepiece along the axial direction.

[0006] Another object of the present invention is to provide an eyepiece mechanism that allows the eyepiece to be taken in and out along the axial direction and can be click-stopped at both end positions with a simple configuration.

[0007]

[Means for solving the problem]

 In order to solve the above-mentioned problems and achieve the object, according to claim 1 of the present invention, an eye contact mechanism according to the present invention includes an eyepiece tube retaining ring fixed to an eyepiece lens barrel and an eyepiece tube pressing ring. The eyepiece ring, which is fitted onto the eyepiece ring and is slidable along the axial direction, the eyepiece piece fixed to the outer periphery of the eyepiece piece ring, and the eyepiece piece ring is pushed toward the eyepiece barrel. And a click locking means for locking the respective clicks at the push-in position and the pull-out position pulled out from the eyepiece holding ring, and the click locking means includes a projecting piece formed on the eyepiece holding ring. An engaging projection formed at the tip of the projecting piece and a first locking hole formed on the eyepiece ring and defining the pull-out position by engaging with the engaging projection and the engaging projection. By pressing the above It is characterized by comprising a second engaging hole for defining the look position.

[0008]

[Explanation of Examples]

 The configuration of an embodiment of the eye contact mechanism according to the present invention will be described below with reference to the accompanying drawings when applied to waterproof binoculars.

FIG. 1 shows the configuration of the waterproof binoculars 10 of this embodiment in a partially broken state and its flat shape.

As shown in the figure, the waterproof binoculars 10 includes a binocular body 14 having a pair of left and right objective lenses 12L and 12R built-in, and a Porro prism as an erecting prism, so that the light of each of the objective lenses 12L and 12R can be obtained. Left and right eyepieces in which eyepiece lenses 16L and 16R are arranged eccentrically with respect to the axes OA _L and OA _R by a predetermined amount (however, the left eyepiece lens 16 L is not shown for convenience of illustration). It is configured to include mirror bodies 18L and 18R that respectively configure the sections. Here, the left-side objective lens 12L and the left-side eyepiece lens 16L constitute a left-side telescopic optical system 20L, and the right-side objective lens 12R and the right-side eyepiece lens 16R constitute a right-side telescopic optical system 20R. Has been done.

The binoculars body 14 has holding holes 22 L and 22 R that are opened in parallel with each other, and the outer rubber 24 covers substantially the entire outer surface thereof. Further, the tip portions of the left and right mirror bodies 18L and 18R described above are rotatably fitted in the holding holes 22L and 22R, respectively, and the tip portions of the left and right mirror bodies 18L and 18R are inserted. On the inner circumference, objective lens frames 26L and 26R having objective lenses 12L and 12R mounted thereon are respectively provided with optical axes OA._L , OA_R Slidable along the optical axis OA _L , OA_R It is rotatably fitted around. That is, in the two telephoto optical systems 20L and 20R, the optical axes OA of the respective objective lenses 12L and 12R are_L , OA_R Are set parallel to each other, and the mirrors 18L and 18R (hence the eyepieces 16L and 16R) are provided with the corresponding optical axes OA of the objective lenses 12L and 12R._L , OA_R It is designed to be rotatable around. In this way, the optical axes OA of the objective lenses 12L and 12R in the two eyepieces 14L and 14R are_L , OA_R The rotations are made to interlock with each other by a not-shown interlocking mechanism, and the interlocking pivots change the distance between the optical axes of the eyepiece lenses 16L and 16R to adjust the interpupillary distance. Is coming out.

In addition, protective glasses 28L and 28R are attached to the tip ends of the left and right holding holes 22L and 22R, respectively, and the inner circumference of the binoculars body 14 defining the left holding hole 22L and the protective glass 28L. A waterproof packing 30L on the left side is interposed therebetween to prevent water from entering the holding hole 22L on the left side. On the other hand, between the inner periphery of the binoculars body 14 defining the right holding hole 22R and the protective glass 28R, a right waterproof packing 30R is interposed to prevent water from entering the right holding hole 22R. It is set up. Although not shown, waterproof packing is also provided at the connecting portion between the binocular body 14 and the pair of left and right mirror bodies 18L and 18R, and at the sliding portions thereof.

An adjustment mechanism 32 having two adjusting functions, a diopter difference adjusting function and a focus adjusting function, is attached to the central upper surface side of the binoculars body 14. In order to attach the adjusting mechanism 32, an opening 34 for communicating the above-mentioned left and right holding holes 22L and 22R with the external space is formed on the upper surface of the center of the binoculars body 14, and behind this opening 34. A recess 40 is formed on the upper surface of the binoculars body 14 located at the position, in which a wheel 36 for focus adjustment and a diopter adjustment ring 38 for diopter adjustment are housed. Here, the opening 34 and the recess 40 are partitioned by a partition plate 42 that is integrally formed with the binoculars body 14, and a circle for inserting an adjustment rod 44 described later into the partition plate 42. A shaped insertion hole 46 is formed.

Since the adjusting mechanism 32 performs the focus adjusting function, the adjusting mechanism 32 is slidable along a central axis set parallel to the above-mentioned optical axes OA _L and OA _R to a guide portion not shown in FIG. The left blade 48 to be fitted is provided in a state of being driven and moved along the central axis direction. That is, the left blade 48 is integrally provided with an operating arm 48a that engages with the lens frame 26L of the left-side telescopic optical system 20L so as to project toward the left side, and the rear side (immediately, the mirror body 18L). At the end (on the side), an engaging portion 48b formed integrally with the adjusting rod 44 is formed so as to engage with the adjusting rod 44 only along the central axis direction of the adjusting rod 44 and not in the rotating direction.

As shown in FIG. 2, the adjusting rod 44 described above is engaged with the front rod portion 50 at the rear of the rod portion 50 only in the rotational direction and not in the central axis direction. And a rear rod portion 52 connected to the. The front rod portion 50 is integrally formed of a rod body 50A located in the front and a fitting rod 50B that extends coaxially rearward from the rear end surface of the rod body 50A and has a smaller diameter than the rod body 50A. Has been formed. A male screw portion 50a is formed on the outer peripheral surface of the tip of the rod body 50A, and a first engaging circumferential groove that engages with the above-described engaging portion 48b is formed on the outer peripheral surface located behind the male screw portion 50a. 50b is formed over the entire circumference along the circumferential direction.

A second engaging circumferential groove 50c that engages with a wheel bridge 54 described later is formed on the outer peripheral surface of the rear end of the rod body 50A along the entire circumference in the circumferential direction. ing. On the other hand, on the outer peripheral surface of the fitting rod 50B, a pair of engaging pieces 50d, 50e extending along the axial direction are formed in a state of protruding outward in the radial direction. The engaging pieces 50d and 50e are formed at positions facing each other, that is, in a state of being separated by 180 degrees.

On the other hand, the rear rod portion 52 described above is coaxially extended rearward from a small diameter portion 52A located in front of the small diameter portion 52A, and is formed to have a larger diameter than the small diameter portion 52A. It is integrally formed with the large diameter portion 52B. On the front end surface of the small diameter portion 52A, a fitting hole 52a is formed in the center portion of the small diameter portion 52A so as to penetrate along the central axis direction and into which the above-mentioned fitting rod 50B is complementarily fitted. On the outer peripheral surface of the small-diameter portion 52A, a third engagement circumferential groove 52b with which a stopper 56, which will be described later, is engaged is formed over the entire circumference in the circumferential direction. A flat surface 52c is formed on the upper surface of the large-diameter portion 52B, and an engagement groove 58 to be described later is formed on the flat surface 52c. Here, the rear rod portion 52 is incapable of moving in the central axis direction through the stopper 56 attached to the binocular body 14 in the recess 40 described above, and is freely rotatable. It is supported by the state.

Since the adjusting rod 44 is configured as described above, the front rod portion 50 and the rear rod portion 52 integrally rotate in the rotation direction, and the relative movements between them are free in the central axis direction. Will be acceptable to. That is, when the rear rod portion 52 is rotationally driven in response to the rotation of the diopter difference adjusting ring 38, the front rod portion 50 is also rotated in response to this. However, even if the front rod part 50 is driven to move in the axial direction of the wheel bridge 54, the rear rod part 52 can be stopped at that position.

Here, as shown in FIG. 1, the above-mentioned rolling wheel 36 is rotatably mounted in the recess 40 and immovable in the direction of the central axis thereof. Further, a lead screw groove 36a is threaded on the inner peripheral surface of the rolling wheel 36, while the lead screw groove of the rolling wheel 36 is formed on the outer peripheral surface of the rolling wheel piece 54 as shown in FIG. A lead screw groove 54a is screwed into 36a. In addition, the wheel assembly 54 allows the adjustment rod 44 to freely rotate from the side in the second engagement circumferential groove 50c of the adjustment rod 44 and moves integrally in the direction of the center axis. The side groove 54b is formed so as to engage with each other. The side groove 54b is formed in a state of penetrating in the thickness direction of the rolling wheel piece 54 and in a state of extending from the central portion thereof to the outer peripheral surface. Also, a pair of engaging members are provided, which are eccentric from the central axis of the wheel ring piece 54 and have locking projections (not shown) for inhibiting the rotation of the wheel ring piece 54, respectively, which are fitted at positions facing each other. The stop holes 54c and 54d are formed so as to penetrate in the thickness direction. Although not shown, these locking projections are fixed to a fixing member integrally connected to the binoculars body 14.

Further, the male screw portion 50a formed at the tip of the adjusting rod 44 fulfills the diopter difference adjusting function, so that the left blade 48 described above cannot rotate and extends along the central axis direction. The right blade 62 slidably supported is screwed. Here, a movable operation arm 62a that engages with the lens frame 26R of the right telephoto optical system 20R is integrally provided on the right blade 62 so as to project rightward, and is attached to the above-mentioned male screw portion 50a. A female screw portion 62b to be screwed is formed.

In the assembling operation of the adjusting mechanism 32 configured as above to the binoculars main body 14, first, as shown in FIG. 2, the wheel bridge 54 is laterally moved to the second engaging circumferential groove. It is attached to the adjusting rod 44 in a state of being engaged with 50c, and then the rolling wheel 36 is fitted from the front side of the adjusting rod 44, and the lead screw groove 36a of the rolling wheel 36 and the lead of the rolling wheel piece 54 are fitted. Assembled in a state in which the screw groove 54a and the screw groove 54a are screwed together, and the assembly is penetrated through the insertion hole 46 to form the opening 34 and the recess 40 formed on the upper surface of the binocular body 14 as shown in FIG. Wear it while straddling it. Then, the right blade 62 is screwed into the male screw portion 50a of the adjusting rod 44, and the engaging portion 48b of the left blade 48 is engaged with the first engaging circumferential groove 50b. The assembling operation is completed by fitting the engaging convex portions into the pair of engaging holes 54c and 54d, and attaching the diopter difference adjusting ring 38 as described later.

A first spring 64 is provided on the outer periphery of the rod body 50 A of the adjusting rod 44 located between the engaging portion 48 b of the left blade 48 and the right blade 62. It can be said that the first spring 64 is biased in the direction of increasing the distance between the left blade 48 and the right blade 62. That is, the engaging portion 48b of the left blade 48 is urged rearward by the urging force of the first spring 64 to abut on the front end surface of the stopper piece 66 integrally formed with the binoculars body 14, On the other hand, the right blade 62 is biased forward. As a result, backlash between the female screw portion 62b of the right blade 62 and the male screw portion 50a of the adjusting rod 44 is effectively eliminated.

According to the adjusting mechanism 32 configured as described above, the rotation of the adjusting rod 44 by rotating the diopter difference adjusting ring 38 as described later causes only the right blade 62 to move only along the central axis direction. I will move. As a result, the lens frame 26R of the right telescopic optical system 20R is moved and driven, and the relative position of the lens frame 26L of the left telescopic optical system 20L changes. That is, the objective lens 12R of the right telescopic optical system 20R can be moved and adjusted along the optical axis direction with the left telescopic optical system 20L as a reference. That is, the diopter difference can be adjusted with the diopter on the left side as a reference according to the diopter difference between the left and right eyes of the user. After adjusting the diopter difference in this manner, the adjusting rod 44 is driven to move only along the central axis direction via the rolling wheel piece 54 by the rotating operation of the rolling wheel 36, and as a result, the left blade 48 is moved. Will be moved along the direction of the central axis. Here, the right blade 62 is moved integrally with the left blade 48. Therefore, the left and right lens frames 26R and 26L move integrally, and thereby the left and right objective lenses 12L and 12R move integrally along the optical axis direction, and focus adjustment can be performed.

Here, as is apparent from the above description, the pair of left and right eyepieces 12L and 12R are mounted inside the binoculars body 14 and must be kept watertight. Therefore, although not shown, the above-mentioned opening 34 is attached with an upper lid via a waterproof packing, and the opening 34 is closed in a waterproof state at the time of completion of assembly. On the other hand, the wheel 36 must be exposed to the outside in order to be operated by the operator. Therefore, the insertion hole 46 into which the adjustment rod 44 extending inside and outside the binoculars body 14 is also inserted must be kept watertight in the same manner. Therefore, in this embodiment, a substantially donut-shaped waterproof packing 68 is fitted around the outer periphery of the rod body 50A of the front rod portion 50 of the adjusting rod 44. An inner peripheral surface 68a of the waterproof packing 68 is formed smoothly, and is set so as to be watertightly in sliding contact with the smooth outer peripheral surface of the rod body 50A of the front rod portion 50. Further, on the outer peripheral surface of the waterproof packing 68, a fitting groove 68b in which the inner peripheral edge of the insertion hole 46 is fitted in a watertight manner is formed over the entire circumference in the circumferential direction.

As described above, in this embodiment, between the adjusting rod 44 and the insertion hole 46 into which the adjusting rod 44 is inserted, a simple donut-shaped water-proof waterproof structure as shown in FIGS. 1 and 2 is provided. Since the packing 68 is interposed, even if the adjusting rod 44 is rotationally driven for adjusting the diopter difference or is moved and driven along the central axis direction for adjusting the focus, The smooth inner peripheral surface 68a of the waterproof packing 68 and the smooth outer peripheral surface of the rod body 50A of the front rod portion 50 of the adjusting rod 44 are allowed to be in watertight sliding contact with each other. As a result, even if the adjustment mechanism 32 performs the diopter adjustment or the focus adjustment, the inside of the binocular body 14 is kept watertight, and thus the diopter adjustment and the focus adjustment can be performed. However, waterproof binoculars that can exert a waterproof function will be provided.

A diopter difference adjusting ring 38 is attached to the rear end of the adjusting rod 44, particularly to the rear part of the rear rod portion 52 via a locking mechanism described later. The adjustment rod 44 can be rotated by 38.

That is, as already described, the flat surface 52c is formed on the large diameter portion 52B of the rear rod portion 52 of the adjusting rod 44, and the engaging groove 58 is formed on the flat surface 52c. On the other hand, a locking spring 70 formed by bending and bending a rod-shaped spring material having a circular cross-section is fixed to the diopter adjustment ring 38. The tip locking portion 70a of the locking spring 70 is provided at the adjustment rod. It is mounted so as to project toward the center of the rear rod portion 52 of 44, and is thereby engaged with the engagement groove 58. The tip locking portion 70a is movable along the radial direction of the diopter difference adjusting ring 38 by elastic deformation of the locking spring 70 itself, and is also swingable within a predetermined range along the circumferential direction. Has become.

A return spring 72 is externally fitted to the outer circumference of the large diameter portion 52B of the rear rod portion 52, and the diopter difference adjusting ring 38 is biased rearward by the return spring 72 and its locking spring. The front end locking portion 70a of 70 is locked to the rear side base end portion 58a of the engaging groove 58 so as not to fall off. That is, in this embodiment, the locking spring 70, the engaging groove 58, and the return spring 72 constitute the locking mechanism described above.

Further, as shown in FIG. 1, the rear surfaces of the left and right mirror bodies 18L, 18R are urged forward by a leaf spring 74 attached to the binocular body 14, and the mirror bodies 18L, 18R and the binocular body are The waterproof packing at the joint surface with 14 is set so that the waterproof function can be surely exhibited. A rear lid 60 is attached to the rear surfaces of the left and right mirror bodies 18L and 18R so as to cover the outer circumference of the return spring 72 and hide the leaf spring 74. Here, the outer diameter of the portion of the rear lid 60 that covers the outer circumference of the return spring 72 is set to be substantially the same as that of the adjacent rolling wheel 36.

Here, the engagement groove 58 is formed as shown in FIG. 3 which is an enlarged view of the plan shape thereof. The right side in the figure is the rear end side of the adjusting rod 44. The engaging groove 58 has a width with which the front end locking portion 70a of the locking spring 70 is movably fitted, and the rear end side (right end side) of the base end portion 58a and the base end portion 58a. An engaging recess 58e on the front end side in the horizontal direction in the figure, a lower path from the base end 58a to the front end side through the lower side in the figure, and slightly returning to the upper oblique rear side to the engaging recess 58e; The lower path and the substantially symmetrical upper path form an endless circuit path that is closed.

The depth of the engaging groove 58 differs depending on the portion thereof, and if it is described in the clockwise direction in FIG. 3, as shown in FIG. 4, there is an inclined surface portion 58b in the direction in which it becomes shallower from the base end portion 58a. To the flat part 58c, and then to the deepest bottom part 58f which becomes deeper stepwise with the step part 58d and the engaging recessed part 58e, and from the bottom part 58f, the slope part 58g in the direction of becoming shallow is once provided. After becoming higher (shallow) than the end portion 58a, it is returned to the base end portion 58a.

Next, the locking mechanism of the diopter difference adjusting ring 38 to the adjusting rod 44 configured as described above operates as follows.

In the state shown in FIG. 1 in which the locking spring 70 is locked to the rear base end portion 58a of the engagement groove 58, the rear end of the diopter difference adjustment ring 38 is located at the rear end surface 14a of the binocular body 14. A certain amount is projected from the lens, and the projecting diopter difference adjusting ring 38 is rotated to rotate the adjusting rod 44, whereby the diopter difference can be easily adjusted.

Further, from this state, the diopter difference adjusting ring 38 is once pressed against the return spring 72 to the front side, as shown by the phantom line in FIG. 1 and as shown in FIG. The diopter difference adjusting ring 38 is substantially buried in the cover ring 74 and can be locked in the inoperable state.

That is, when the diopter difference adjusting ring 38 is pressed forward against the return spring 72, the tip locking portion 70 a of the locking spring 70 moves along the lower path of the engaging groove 58. (The tip locking portion 70a is biased in the depth direction of the groove, and the boundary between the sloped step portion 58d and the base end portion 58a is higher in the sloped step portion 58d. When the tip locking portion 70a reaches the foremost end of the lower path and the rear pushing force is loosened, the biasing force of the return spring 72 causes the diopter difference adjusting ring 38 to return to the rear side and the tip engaging portion 70a. The stopper 70a reaches the engaging recess 58e (the step 58d is irreversible from the flat portion 58d to the flat portion 58c because the flat portion 58c is shallower) and is locked in the engaging recess 58e. This state is shown by an imaginary line in FIG. 1, and as shown in FIG. 5, the diopter difference adjusting ring 38 is substantially in a state of being buried inside the cover ring 74 attached to the binoculars body 14 and is in an inoperable state. .

When the diopter difference adjusting ring 38 is pressed against the return spring 72 again from this inoperable state, the tip end locking portion 70a moves from the engaging recess 58e to the bottom 58f (from the engaging recess 58e to the flat portion). When the pressing force is released, the tip locking portion 70a moves along the upper path by the urging force of the return spring 72, and the diopter difference adjustment ring 38 moves rearward. Then, the front end locking portion 70a reaches the base end portion 58a, the rear end of the diopter adjustment ring 38 protrudes from the rear end surface of the binoculars body 14 by a predetermined amount, and the state becomes operable as shown again in FIG.

That is, each time the diopter difference adjusting ring 38 is pressed, the operable position, whose rear end projects from the rear end surface 14 a of the binocular body 14, and the inoperable position, which is buried in the binocular body 14, are alternately arranged. The binoculars are repeatedly locked, and the diopter adjustment ring 38 is operated to adjust the diopter at a position protruding from the rear end surface of the binocular body 14 and then the diopter adjustment ring 38 is pressed to press the binoculars. By being buried in the main body 14, it is possible to reliably prevent the once set diopter difference from being damaged by an erroneous operation.

As shown in FIG. 1 again, a strap 76 is detachably attached so that the waterproof binoculars 10 can be hung on the neck of the user of the waterproof binoculars 10, for example. Is configured. That is, buckles 78 are attached to both ends of the strap 76, and attachment portions 80L and 80R to which the buckles 78 are detachably attached are provided on the outer surfaces of the left and right mirror bodies 18L and 18R. .

Here, the buckle 78 includes a buckle body 78a that is locked when the end of the strap 76 is pushed back as shown in the figure, and a locking pin 78b that is fixed to the buckle body 78a. It is configured. The locking pin 78b is, as shown in FIG.₁ And this pin body 78b ₁ Pin protruding portion 78b that is set coaxially with and protrudes from the buckle body 78a₂ And this pin protrusion 78b₂ Flange 78c integrally formed at the end of the₂ It consists of and.

In this embodiment, the diameter of the pin protruding portion 78b ₂ is defined as d ₁ and the diameter of the outer flange portion 78b ₃ is defined as d ₂ . Here, it goes without saying that d ₁ <d ₂ .

Next, the left and right mounting portions 80L and 80R will be described, but since both are configured in the same manner, only the right mounting portion 80R will be described and the left mounting portion 80L will be omitted. That is, as shown in FIG. 7, the mounting portion 80R is a recess 82 formed on the outer surface of the right mirror 18R, and is housed in the recess 82 so as to be movable along a direction orthogonal to the outer surface. A lock member 84, and a push-out spring 86 interposed between the lock member 84 and the bottom of the recess 82 and biasing the lock member 84 in the protruding direction.

Here, a recess 84a for receiving the outer flange portion 78b ₃ of the locking pin 78b described above is formed on the upper surface of the lock member 84, and one side of the recess 84a is left open. There is. In other words, the recess 84a receives the outer flange portion 78b ₃ of the locking pin 78b from above, and then the lower surface of the outer flange portion 78b ₃ is brought into sliding contact with the bottom surface of the recess 84a. The stopper pin 78b is formed so that it can be taken out from the recess 84a from the opened side toward the outside. In addition, a flange portion 84b that engages with an overhanging piece 82a that extends to the other side of the recess 82 is formed at the edge of the other side of the bottom surface of the lock portion 84 that is opposite to the one side described above. Has been done. By engaging the flange portion 84b with the overhanging piece 82a from the inside, the push-out of the lock member 84 is locked against the biasing force of the push-out spring 86, and the lock position is elastically moved to the locked position. Will be retained.

On the other hand, a boss portion 88 is formed so as to project on a portion of the outer peripheral surface of the portion of the mirror body 18R that defines the peripheral edge of the concave portion 82, facing the open side of the recess 84a of the lock member 84. ing. The boss portion 88 has a fitting groove 90 formed so that the locking pin 78b is fitted from the side. That is, the fitting groove 90 is opened on the upper surface of the boss portion 88 and the side surface defining the side wall of the concave portion 82, and is formed so that its vertical cross-sectional shape is an inverted T shape. Specifically, the fitting groove 90 is opened on the upper surface of the boss portion 88, and has a first long groove 90a having a width set to be slightly larger than the above-mentioned diameter d ₁ and a lower portion of the first long groove 90a. to be formed in a continuous state, it is constituted by a second elongated groove 90b having a slightly larger set width than the diameter d ₂ described above.

Here, the above-mentioned lock member 84 is in a state where no external force acts on it, that is, as shown in FIG. 7, the flange portion 84 b of the lock member 84 has the concave portion 82 due to the urging force of the pushing spring 86. The portion of the second elongated groove 90b that is open to the side surface of the boss portion 88 while being engaged with the overhanging piece 82a from the inside is set to be closed by the side surface of the lock member 84.

An operation of attaching / detaching the buckle 78 to / from the attachment portion 80R configured as described above will be described with reference to FIGS. 7 to 10.

First, when attaching the buckle 78 to the attaching portion 80R, as shown in FIG. 7, the locking pin 78b fixed to the buckle 78 is brought to a position opposed to the recess 84a of the lock member 84 in a spaced manner. . Thereafter, as shown in FIG. 8, the buckle 78 is brought close to the lock member 84, the locking pin 78b is brought into contact with the bottom surface of the recess 84a, and the lock member 84 is pushed out to resist the urging force of the spring 86. Push inward. Then, with the bottom surface of the recess 84a and the bottom surface of the second long groove 90b of the fitting groove 90 set substantially flush with each other, the buckle 78 is slid toward the boss portion 88 as shown in FIG. As a result, the outer flange portion 78b ₃ of the locking pin 78b is fitted in the second long groove 90b, and the pin protrusion 78c is fitted in the first long groove 90a.

Then, the buckle 78 is further slid to the side, and with the locking pin 78b completely fitted in the fitting groove 90, the lock member 84 is pushed inward as shown in FIG. The external force to be stored will disappear. As a result, the locking member 84 is pushed outward by the urging force of the pushing spring 86, and stops in a state in which the flange portion 84 b of the locking member 84 engages the protruding piece 82 a of the recess 82 from the inside. In this state, the portion of the second long groove 90b that opens to the side surface of the boss portion 88 is closed by the side surface of the lock member 84, so unless the lock member 84 is pushed down against the urging force of the pushing spring 86. The locking pin 78b is locked in the fitting groove 90.

That is, in the state shown in FIG. 10, the buckle 78 is attached to the attachment portion 80R.

On the other hand, when removing the buckle 78 from the mounting portion 80R, the lock member 84 is pushed out against the urging force of the spring 86 from the state shown in FIG. 10 with fingers or the like. From this pushed-in state, as shown in FIG. 9 and FIG. 8, the buckle 78 is slid in the opposite direction to that when it is attached. As a result, as shown in FIG. 7, the buckle 78 can be easily removed from the mounting portion 80R.

As described above, in this embodiment, the strap 76 has the buckles 78 fixed to both ends thereof, and is detachably attached to the mirror bodies 18L and 18R via the buckles 78, respectively. . As a result, when the strap 76 is not needed, the buckle 78 can be easily supported by simply sliding the buckle 78 while pushing the lock member 84 against the urging force of the spring 86 by pushing out the lock member 84 with fingers or the like. It will be possible to remove from the mounting portion 80 to be attached. When the strap 76 is required, the locking pin 78b of the buckle 78 pushes out the lock member 84 against the urging force of the spring 86 and slides the buckle 78 in a state of being pushed in easily. It is possible to attach 78 to the corresponding attaching portion 80.

In this way, the strap 76 can be attached to the waterproof binoculars 10 in a state where it can be easily attached and detached.

Further, as shown in FIG. 1 again, left and right eye contact mechanisms 92L and 92R are attached to the outer peripheries of the eyepieces 16L and 16R of the left and right mirror bodies 18a and 18b of the waterproof binoculars 10, respectively. . Here, the left and right eye contact mechanisms 92L and 92R are configured symmetrically, and in the following description, only the right eye contact mechanism 92R will be described, and the left eye contact mechanism 92L will not be described.

That is, the right eye contact mechanism 92R includes an eyepiece tube retaining ring 94R screwed to the rear end surface of the mirror body 18R, and the eyepiece ring 96R is provided on the outer periphery of the eyepiece tube retaining ring 94R in the optical axis direction. It is slidably fitted along. Further, the eyepiece 98R is fixedly fitted on the outer circumference of the eyepiece ring 96R.

Specifically, as taken out and shown in FIG. 11, the eyepiece tube pressing ring 94R includes a cylindrical tube main body 94a, and the end of the outer peripheral surface of the cylindrical main body 94a on the base end side is A male screw portion 94b screwed to the rear end surface of the corresponding mirror body 18R is formed. In addition, a pair of recesses 94c formed at positions opposite to each other are opened at the end portion of the barrel main body 94a on the tip end side, and the recesses 94c are directed from the side wall on the base end side toward the tip. A protruding piece 94d is projected. In addition, a boss portion 94e is provided on the outer peripheral surface of the tip end portion of each projecting piece 94d, and an engaging projection 94f is provided on the outer peripheral surface of each boss portion 94e. Here, the outer peripheral surface of each boss portion 94e and the outer peripheral surface of the cylinder body 94a are set to be flush with each other, in other words, to have the same radius.

Further, on the outer peripheral surface of the cylinder body 94a, slide guide recesses 94g extending in the axial direction are formed at positions facing each other. Here, each concave portion 94g is set so as to extend in a state of being coaxially aligned with each of the above-mentioned protruding pieces 94d. Further, each recess 94g is set so as to end at the base end of the corresponding protruding piece 94d. It should be noted that each of the overhanging pieces 94d is formed in a thin shape so that it has an elastic force in the radial direction.

On the other hand, the above-mentioned eyepiece ring 96R includes a ring body 96a slidably fitted to the outer periphery of the above-mentioned eyepiece holding ring 94R, and the end on the base end side of the inner peripheral surface of this ring body 96a. The projections 96b for guides, which are fitted into the above-mentioned recesses 94g for slide guides, are provided on the portions. Due to the fitting of these guide projections 96b and the corresponding recesses 94g, the eyepiece ring 96R is regulated so as to slide and move along the outer circumference of the eyepiece holding ring 94R only in the axial direction without rotating. Will be A first locking hole 96c, which is locked to each of the pair of engaging projections 94f in a state where the ring main body 96a is pulled out from the eyepiece tube pressing ring 94R, penetrates through the base end side of the ring main body 96a in the thickness direction. The second locking holes 96d are formed on the distal end side and are respectively locked by the pair of engaging projections 94f in a state where the ring body 96a is pressed into the eyepiece tube pressing ring 94R. It is formed so as to penetrate in the thickness direction. That is, in this embodiment, the click locking mechanism is constituted by the above-mentioned overhanging piece 94d, engaging projection 94f, and first and second locking holes 96c and 96d.

Since the eye contact mechanisms 92L and 92R are configured as described above, in an unused state or an in-use state of a person wearing glasses, as shown in FIG. 96R is pushed in so as to slide along the axial direction, and in this pushing state, the pair of engaging projections 94f formed on the eyepiece tube presser rings 94L, 94R engage the second locking of the eyepiece rings 96L, 96R. The holes 96d are engaged with each other, and as a result, the rings 96L and 96R are elastically held (that is, click-locked) at the pushing position. Therefore, even when the upper side is observed using the waterproof binoculars 10, it is effectively prevented that the eyepiece rings 96L and 96R are slid downward and pulled out due to their own weight. Become.

On the other hand, in a use state of a person who does not wear glasses, as shown in FIG. 13, the eyepiece rings 96L and 96R are pulled out from the eyepiece tube holding rings 94L and 94R so as to slide along the axial direction, In this pulled-out state, the pair of engagement projections 94f formed on the eyepiece tube presser rings 94L and 94R engage with the first locking holes 96c of the eyepiece rings 96L and 96R, respectively, and accordingly, the eyepiece rings 96L and 96R. Will be elastically held (that is, click locked) in the pulled-out position. Therefore, even when the lower side is observed using the waterproof binoculars 10, it is possible to effectively prevent the eyepiece rings 96L and 96R from being slid down and pushed in due to their own weight.

In this embodiment, the eyepieces 98L and 98L extend in the direction corresponding to the outer corners of the eyes as shown in FIG. It is set so that it is possible to avoid a situation that is difficult to observe by external light entering from the outside of the eye during observation. Here, as described above, the eyepiece rings 96L and 96R to which the eyepieces 98L and 98R are attached slide only along the axial direction with respect to the eyepiece tube holding rings 94L and 94R in a state where the rotation thereof is prohibited. It is regulated to do. Therefore, no matter how many times the eyepieces 98L and 98R are slid between the pull-out position and the push-in position, the mounting postures of the eyepieces 98L and 98R do not change, and the condition that the outer parts of both eyes are always covered is achieved. Will be done.

Further, in the eye contact mechanisms 92L and 92R configured as described above, the eyepiece tube holding rings 94L and 94R are configured to integrally include the protruding piece 94d and the engaging projection 94f. As a result, the number of parts can be suppressed to a minimum, which allows cost reduction.

It is needless to say that the present invention is not limited to the configuration of the above-described embodiment and can be variously modified without departing from the gist of the present invention.

[0062]

[Effect of device]

 As described above in detail, according to the present invention, it is possible to provide the aiming mechanism having a simple structure and capable of handling the aiming at low cost.

Further, according to this invention, it is possible to provide the eye contact mechanism capable of taking in and out the eye contact along the axial direction.

Further, according to this invention, the eyepiece mechanism can be provided which can be put in and taken out along the axial direction and which can be click-stopped at both end positions with a simple configuration.

[Brief description of drawings]

FIG. 1 is a plan view showing waterproof binoculars to which a configuration of an embodiment of an eye contact mechanism according to the present invention is applied, with an upper lid removed and a part cut away.

FIG. 2 is an exploded perspective view showing a structure of an adjusting rod in a taken out state and showing a connected state with a wheel and a wheel piece.

FIG. 3 is a plan view showing an enlarged shape of an engagement groove.

FIG. 4 is a development view showing changes in the depth of the engagement groove when the engagement groove is developed in a straight line.

FIG. 5 is a plan view showing a state where a main part is taken out in a state where a diopter difference adjusting ring is pushed in.

FIG. 6 is a perspective view showing a buckle and a mounting portion to which the buckle is mounted, taken out.

FIG. 7 is a front sectional view showing a buckle and a mounting portion to which the buckle is mounted, in a state before the buckle is mounted.

FIG. 8 is a front cross-sectional view showing the buckle and the mounting portion to which the buckle is attached, with the locking pin of the buckle pushing the lock member.

FIG. 9 is a front cross-sectional view showing a buckle and an attachment portion to which the buckle is attached, in a state where the locking pin of the buckle is sliding to the side while pressing the lock member.

FIG. 10 is a front cross-sectional view showing a buckle and an attachment portion to which the buckle is attached, in a state in which a locking pin of the buckle has entered a fitting groove of a boss portion and is locked by a lock member.

FIG. 11 is an exploded perspective view showing a structure of an eye contact mechanism.

FIG. 12 is a side sectional view showing the eye contact mechanism with the eye contact ring pushed in.

FIG. 13 is a side sectional view showing the eye contact mechanism with the eye contact ring pulled out.

FIG. 14 is a rear view showing the shape of the eye contact.

[Explanation of symbols]

10 Waterproof Binoculars 12L; 12R Objective Lens 14 Binoculars Body 16L; 16R Eyepiece 18L; 18R Mirror 20L; 20R Telescopic Optical System 22L; 22R Holding Hole 24 Exterior Rubber 26L; 26R Objective Lens Frame 28L; 28R Protective Glass 30L; 30R Waterproof Packing 32 Adjusting mechanism 34 Opening 36 Rolling wheel 36a Lead screw groove 38 Diopter difference adjusting ring 40 Recess 42 Partition plate 44 Adjusting rod 46 Insertion hole 48 Left blade 48a Operating arm 48b Engaging part 50 Front rod part 50A Rod body 50B Fitting Joint rod 50a Male screw part 50b First engaging circumferential groove 50c Second engaging circumferential groove 50d; 50e Engaging piece 52 Rear rod part 52A Small diameter part 58b Large diameter part 52a Fitting hole 52b Third engagement Circumferential groove 52c Flat surface 54 Roller bridge 54a Lead screw groove 5 4b Side groove 54c; 54d Locking hole 56 Stopper 58 Engagement groove 60 Rear lid 62 Right blade 62a Movable operation arm 62b Female screw portion 64 First spring 66 Stopper piece 68 Waterproof packing 68a Inner peripheral surface 68b Fitting groove 70 Locking spring 70a Tip locking portion 72 Return spring 74 Leaf spring 76 Strap 78 Buckle 78a Buckle body 78b Locking pin 78b ₁ Pin body 78b ₂ Pin protrusion 78b ₃ Outer flange 80L; 80R Mounting 82 Recess 82a Overhanging piece 84 Locking member 84a Depression 84b Flange portion 86 Extrusion spring 88 Boss portion 90 Fitting groove 90a First long groove 90b Second long groove 92L; 92R Eye contact mechanism 94L; 94R Eyepiece tube retaining ring 94a Tube body 94b Male screw portion 94c Recess 94d Overhanging piece 94e boss Recess for 94f engaging projection 94g slide guide 96L; 96R eye contact ring 96a ring body 96b guide projections 96c; 96d locking hole 98L; 98R mercenary

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[Procedure amendment]

[Submission date] June 21, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 10

[Correction method] Change

[Correction content]

Claims (11)

[Scope of utility model registration request] 1. An eyepiece retainer ring fixed to an eyepiece barrel, an eyepiece ring externally fitted to the eyepiece retainer ring and slidable along the axial direction, and an outer circumference of the eyepiece retainer ring. An eyepiece fixed to the eyepiece, and a click locking means for locking the eyepiece ring by pushing the eyepiece ring toward the eyepiece barrel and pulling out the eyepiece holding ring. The click locking means includes an overhanging piece formed on the eyepiece tube retaining ring, an engaging projection protruding from the tip of the overhanging piece, and an engaging projection formed on the eyepiece ring. A targeting mechanism comprising: a first locking hole that defines the pulled-out position when fitted together and a second locking hole that defines the pushed-in position by engaging with the engaging projection. 2. A recess is formed at the rear end of the eyepiece retainer ring so as to be open to the rear end face, and the projecting piece is attached to the eyepiece retainer ring so as to extend in the recess. It is integrally formed, It is characterized by the above-mentioned.
Eye contact mechanism described in. 3. A pair of the recesses are formed at positions facing each other on a rear end of the eyepiece holding ring, and the projecting pieces are arranged in each recess, and the first and second recesses are provided. The eye contact mechanism according to claim 2, wherein a pair of the locking holes are formed at positions facing each other corresponding to the engaging protrusions formed on each of the projecting pieces. 4. The projecting piece is formed to have a wall thickness smaller than that of the eyepiece tube retaining ring.
The eye contact mechanism according to any one of 1 to 3. 5. A boss portion is projectingly formed on an outer peripheral surface of a tip of the projecting piece, and the engaging projection is formed on an outer peripheral surface of the boss portion. Eye contact mechanism described in. 6. The eye contact mechanism according to claim 5, wherein the outer peripheral surface of the boss portion and the outer peripheral surface of the eyepiece tube retaining ring are set flush with each other. 7. An eyepiece retaining ring is formed with an outer periphery of a guide recess extending along the central axis direction of the eyepiece retaining ring. In the fitted state, a guide convex portion that fits in the guide concave portion is formed, and by fitting the guide concave portion and the guide convex portion, the eyepiece ring is restricted to move only along the axial direction. The eye contact mechanism according to any one of claims 1 to 6, which is provided. 8. The pair of guide concave portions are formed at positions facing each other, and the pair of guide convex portions are formed in a pair corresponding to the pair of guide concave portions. The described eye contact mechanism. 9. The guide recess is arranged coaxially with the projecting piece, and the rear end of the guide recess ends at the base end of the projecting piece. Item 7. The eye contact mechanism according to Item 7 or 8. 10. The eyepiece mechanism according to claim 1, wherein the eyepiece barrel comprises a pair of left and right eyepieces of binoculars. 11. The eye contact is formed so that a portion corresponding to the outer side of the eye of the user to which the eye contact mechanism is applied extends rearward. The eye contact mechanism according to item 1.