JP5324301B2 - Binoculars and eyelid fixing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pupil distance fixing device for binoculars capable of surely fixing an adjusted pupil distance with easy operation. <P>SOLUTION: The binoculars include a pupil distance fixing ring 22 provided so as to be opposed to the end faces 14a and 14b of coupling arm parts 12a and 12b extending from respective lens barrels 11a and 11b toward a coupling shaft 13, and a pupil distance fixing knob 21 controlling displacement of the pupil distance fixing ring to a state where the pupil distance fixing ring is pressed against the end face of the coupling arm part or a state where it is separated therefrom. By screwing the pupil distance fixing knob and tightening the pupil distance fixing ring, the pupil distance fixing ring joins the coupling arm parts of left and right lens barrels each other in the pressed state, to restrict bending actuation of the left and the right lens barrels through a coupling shaft. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a device for fixing the binoculars' eyelids at an arbitrary position and binoculars provided with the eyebrow fixing device.

  Many binoculars can adjust the eye width, that is, the distance between the centers of the right and left eyepieces according to the user. As a typical structure for adjusting the eye width, for example, as shown in Patent Document 1, a pair of left and right lens barrels of binoculars can be bent with respect to each other via a connecting shaft provided between the lens barrels. It is known that the eye width can be adjusted according to the bending angle between the left and right lens barrels with the connection axis as the center.

JP-A-10-246858

  In this kind of eye width adjustment mechanism, the eye width is generally held based on a frictional force generated in a tightening portion of the connecting shaft. Thus, the user can easily adjust the eye width at an arbitrary position and can fix the eye width at that position.

  However, because the fixation of the eyelid depends on frictional force, there is a risk that the eyelid may change due to any change in force during use, especially with long-term use. When the tightening of the shaft becomes sweeter, the width of the eyelids changes easily. For example, when observing with one hand held with one hand when observing a bird, the other hand comes down with its own weight. This causes inconvenience that the eyelid moves.

  Further, in conventional binoculars, a scale is provided at the end of the connecting shaft (so-called campasa) so that the eye width can be quickly adjusted to suit the user so that it can be used as a guide for adjusting the eye width. However, it is difficult to finely adjust the width of the eyelid only with such a scale, and there is a problem that the scale itself is difficult to visually recognize during night use such as astronomical observation.

The invention of claim 1
A pair of left and right lens barrels are connected to each other via a connecting shaft provided between the lens barrels so that they can be bent with each other, and the eye width can be adjusted according to the bending angle between the left and right lens barrels with the connecting shaft as the center. A binocular fixation device applied to the binoculars,
A width of eyelid fixing member provided so as to face the end surface of the connecting arm portion extending from each lens barrel toward the connecting shaft, and a state in which the eye width fixing member is pressed against the end surface of the connecting arm portion or a distance An operation member for controlling the displacement to a state to be
The eye width fixing member includes an annular portion formed so as to surround a center of the coupling shaft so as to face the end surface of the coupling arm portion, and the engagement portion in the pressed state. While forming an engaging portion that engages with the protrusion on each of the connecting arm portions,
An elastic member is interposed between the lapis fixing member and the operation member, and the paticular fixing member is elastically biased in the direction of the connecting arm part,
The eyepiece fixing member joins the connecting arm portions of the left and right lens barrels in the pressed state and restrains the bending operation of the left and right lens barrels through the connecting shaft in the joined state. This is a binocular optic width fixing device.
The invention of claim 2
A pair of left and right lens barrels are connected to each other via a connecting shaft provided between the lens barrels so that they can be bent with each other, and the eye width can be adjusted according to the bending angle between the left and right lens barrels with the connecting shaft as the center. A binocular fixation device applied to the binoculars,
A width of eyelid fixing member provided so as to face the end surface of the connecting arm portion extending from each lens barrel toward the connecting shaft, and a state in which the eye width fixing member is pressed against the end surface of the connecting arm portion or a distance An operation member for controlling the displacement to a state to be
The eye width fixing member includes a friction member that faces the end surface of the connecting arm portion and simultaneously contacts the end surfaces of the left and right connecting arm portions in the pressed state,
The eyepiece fixing member joins the connecting arm portions of the left and right lens barrels in the pressed state and restrains the bending operation of the left and right lens barrels through the connecting shaft in the joined state. This is a binocular optic width fixing device .
The invention of claim 3 is the invention according to claim 1 or claim 2,
The operation member is screw-engaged with the shaft end portion of the connecting shaft, and based on the rotation on the screw, the displacement of the eye-width fixing member to the pressed state or the separated state is controlled. It is a binoculars eyepiece fixing device characterized.
The invention of claim 4 is the invention of claim 3 ,
The binocular optic pincage fixing device is characterized in that the operation member is formed so as to be screwed into a screw hole provided in an end portion of the connecting shaft in order to couple a tripod adapter.
A fifth aspect of the invention is a binocular provided with the binocular width fixing device according to any one of the first to fourth aspects.

  In each of the inventions of claim 1 and below, when the operating member is operated so that the fixing member is separated from the connecting arm portion of the binoculars, the connecting arm portion of each lens barrel is bent around its connecting axis. Therefore, the user can adjust the width of the eyelid in the same manner as conventional binoculars. From this state, when the operating member is operated and displaced to a pressing state in which the fixing member is pressed against the connecting arm portion, the connecting arm portions of the left and right lens barrels are joined to each other via the fixing member to perform a bending operation. Since it is in a restrained state, it is possible to prevent unexpected bending between the left and right lens barrels from this state, and to securely fix the eye width adjusted by the user.

  Once the width of the eyelid is fixed in this way, the binoculars are fixed at a constant width set by the user unless the operation member is operated again to make the fixing member separable. When binoculars are planned to be used under conditions where eye width adjustment is troublesome, such as when observing astronomical objects, it is possible to adjust the eye width before use to fix the eye width fluctuations during use. Therefore, the binoculars can be used comfortably.

  The unique effects of the inventions of the second aspect and below will be described in the description of the corresponding configuration in the following description of the embodiments.

The perspective view which shows the assembly state of 1st Embodiment of the binoculars eye-brow fixing device by this invention. The perspective view which shows the state which attaches the eyepiece fixing device of FIG. 1 to binoculars. The principal part longitudinal cross-sectional view which shows the state which attached the binoculars to the eyepiece fixing device of FIG. The principal part longitudinal cross-sectional view which shows the state which attached the binoculars 2nd Embodiment of the eyepiece fixing device by this invention. The longitudinal cross-sectional view of 3rd Embodiment of the width-of-eye fixation apparatus by this invention. The top view of the binoculars for illustrating the attachment position of the eyepiece fixing device by this invention. The top view of one Embodiment of the binoculars provided with the eyepiece fixing device by this invention.

  Hereinafter, several embodiments of a binocular optic pinion fixing device according to the present invention will be described with reference to the drawings. In addition, suppose that the same code | symbol is attached | subjected and shown to the part which is common between each embodiment.

  1 to 3 show a first embodiment of an eyepiece fixation device according to the present invention. In the figure, 1 indicates binoculars, and 2 indicates an eyepiece fixing device. The binoculars 1 are configured so that the connecting arm portions 12a and 12b extending oppositely from the left-eye lens barrel 11a and the right-eye lens barrel 11b are positioned in parallel with the optical axis center line. It is connected to each other through a connecting shaft 13 (see FIG. 3) provided between the tubes, and is configured so that the eye width can be adjusted by bending the left and right lens barrels 11a and 11b around the connecting shaft 13. It is of a general structure. In the figure, only a part of the binoculars 1 is shown, and the appearance and structure of each of the lens barrels 11a and 11b are drawn as schematic diagrams.

  As shown in FIG. 1 or FIG. 3, the optic-width fixing device 2 includes a optic-width fixing knob 21, an eye-width fixing ring 22, a coil spring 23, and a retaining ring 24. In relation to the present invention, the optic-eye fixing knob 21 corresponds to the optic-width operating member, the optic-eye fixing ring 22 corresponds to the optic-width fixing member, and the coil spring 23 corresponds to the elastic member.

  The optic-lens fixing knob 21 includes a cylindrical knob body 21a having a non-slip uneven shape on the outer peripheral portion, and a bolt portion 21b extending in the axial direction from the center portion. The bolt portion 21b forms a male screw portion 21c only in the vicinity of the distal end portion, and a neck portion from the middle to the base end has a cylindrical portion 21d having a diameter that is the same as or slightly smaller than the inner diameter portion of the male screw portion 21c. It is formed over the length.

  The eyelet fixed ring 22 has a shape in which a large diameter portion 22a having substantially the same outer diameter as the knob main body 21a and a small diameter portion 22b having a slightly smaller outer diameter than the knob main body 21a via the tapered portion 22c. It has a cylindrical shape with steps connected so as to be positioned on a line, and a through hole 22d (see FIG. 3) is provided at the center of the cylindrical shape. As shown in FIG. 3, the large-diameter portion 22a has a large number of end surface portions facing the end surfaces 14a and 14b (in this case, the end surface on the objective side) of the connecting arm portions 12a and 12b when attached to the binoculars 1. The engaging protrusion 22e is provided with an annular portion 22f formed so as to surround the center line of the connecting shaft 13. In this case, as the engaging protrusion 22e, a serration having a configuration in which a large number of triangular protrusions are provided radially is formed. On the other hand, an annular groove 22g having a predetermined depth for accommodating the coil spring 23 is formed on the small diameter portion 22b of the fixed ring 22 on the end surface facing the optic-width fixing knob 21 so as to surround the through hole 22d. .

  The through-hole 22d of the eyepiece fixed ring 22 is a female screw that is screwed with the male screw portion 21c of the bolt portion 21b. In this state of the arterial fixation device 2, a bolt portion 21 b is screwed into a through hole 22 d which is a female screw in a state where a coil spring 23 is interposed between the eyesight fixation knob 21 and the eyepiece fixation ring 22. Assembled. When the male screw portion 21c of the bolt portion 21b is screwed into the through hole 22d to some extent, when the male screw portion 21c is removed from the through hole 22d, the through hole 22d is fitted into the cylindrical portion 21d of the bolt portion 21b. Become. In this state, the width of the eyelid fixation ring 22 can be relatively rotated with respect to the width of the eyepiece fixation knob 21 while being restricted from moving in the axial direction. However, since the cylindrical portion 21d of the bolt portion 21b is formed longer than the through hole 22d of the optic-eye fixed ring 22 by a predetermined length d (see FIG. 3), displacement in the axial direction is allowed accordingly. Is done. The predetermined length d is larger than the height of the protrusion of the engagement protrusion 22e described above. In this assembled state, the length of the bolt portion 21b is determined so that the male screw portion 21c of the bolt portion 21b protrudes in the axial direction from the end surface of the large-diameter portion 22a (annular portion 22f) of the eyepiece fixed ring 22. It is.

  In the assembled state described above, the male screw portion 21c of the bolt portion 21b is prevented from coming off from the female screw-shaped through hole 22d, and therefore, the eyepiece fixing knob 21 does not normally fall out of the eyepiece fixing ring 22. . However, for example, when attached to the binoculars 1 to be described later, if the optic-width fixing knob 21 is rotated in the loosening direction with the optic-eye fixing ring 22 constrained to rotate, the tension of the coil spring 23 acts. If it is as it is, the thread part of the male thread part 21c and the through-hole 22d may engage, and the optic-lens fixing screw 21 may come out. Therefore, in this embodiment, the retaining ring 24 is fitted to the base portion of the male screw portion 21 so as to prevent the aforementioned withdrawal phenomenon. In this embodiment, an O-ring is used as the retaining ring 24, but a snap ring such as a C ring or an E ring can also be applied.

  As shown in FIG. 2 or 3, a female screw portion 13 a is coaxially formed at the objective end of the connecting shaft 13 of the binoculars 1. The female screw portion 13a is formed of a screw of the same standard so as to be screwed with a bolt portion 21b (male screw portion 21c) provided on the optic-width fixing knob 21 of the optic-eye fixing device 2. In addition, on the end surfaces 14a and 14b of the left and right connecting arm portions, projecting engagement portions 15a and 15b that engage with the engagement projections 22e of the eyelid fixing ring 22 are formed so as to surround the female screw portion 13a. It is. The engaging portions 15a and 15b are formed of a large number of triangular protrusions arranged in an arc shape so as to correspond to the annular engaging protrusion 22e. In this case, the engaging portions 15a and 15b are integrally formed on the connecting arm end surfaces 14a and 14b, respectively, but these are formed as separate parts, for example, by connecting or screwing the connecting arm end surfaces 14a and 14b. You may make it attach to. In addition, as long as the certainty and strength at the time of eyelid fixation allow, the engaging portions 15a or 15b may be a smaller number, for example, a minimum of one protrusion.

  Next, the usage procedure of the eyelid fixing device 2 will be described. First, as shown in FIG. 2 or 3, the assembled eyelid fixing device 2 is connected to the bolt portion 21 b of the female connecting shaft 13. It mounts | wears with the binoculars 1 by screwing in the screw part 13a. At this time, when the eyeball fixing knob 21 is tightened until the rotation stops, the eyelid fixing ring 22 is fixed between the eyelid fixing knob 21 and the connecting arm end faces 14a and 14b of the binoculars 1, and the axial direction thereof is fixed. The movement to is restricted (pressed state). In this state, the engagement projection 22e of the eyelid fixed ring 22 and the engagement portions 15a and 15b on the end surface of the connecting arm portion mesh with each other to restrain relative rotation. The cylinders 11a and 11b cannot be bent, that is, the eye width is fixed.

  There are two methods for changing the above-mentioned eye width from a fixed state to a state in which the eye width can be adjusted. The first method is to rotate the collateral width fixing knob 21 in the loosening direction and move the lenticule fixing ring 22 to a position where the engagement protrusion 22e is disengaged from the engagement portions 15a and 15b. The width of the eyelid fixing ring 22 is urged in the direction of the engaging portions 15a and 15b by the coil spring 23. Since the displacement due to this urging force is restricted via the retaining ring 24, the eyelid fixation knob When the needle 21 is loosened, the eyeball fixing ring 22 moves in the axial direction together with the eyepiece fixing knob 21 in the middle, and the engagement between the engaging protrusion 22e and the engaging portions 15a and 15b can be released as described above. it can. As a result, the engagement state of the left and right connecting arm portions 14a and 14b via the collateral width fixing ring 22 is released, so that the optic axis can be adjusted by bending the lens barrels 11a and 11b about the connecting shaft 13. become.

  The second method for adjusting the width of the eyelid from the state of fixing the eyepiece is to loosen the eyepiece fixing knob 21 halfway from the pressed state, and the eyepiece fixing ring 22 is connected only by the tension of the coil spring 23. In this method, the arm portions 14a and 14b are brought into contact with each other. At this time, the amount of loosening of the eyepiece fixing knob 21 is the position immediately before the eyepiece fixing ring 22 starts to move following the knob 21 in the process of loosening, or when attaching the eyepiece fixing device 2 to the binoculars 1. The position (the position shown in FIG. 3) where the width of the eyelid fixation ring 22 starts to come into contact with the connecting arm end faces 14a and 14b in the process of tightening the eyepiece fixation knob 21 is taken as a guide. In this state, if the left and right lens barrels 11a and 11b are held to bend and operate, the axial force generated between the engaging projection 22e and the engaging portions 15a and 15b of the eyelet fixing ring 22 at this time is based on the axial force. The eyelid fixing ring 22 moves against the tension of the coil spring 23 in a direction away from the connecting arm end faces 14a and 14b, so that the engaging protrusion 22e and the engaging portions 15a and 15b get over the protrusions of each other. The relative rotation is possible. As a result, it is possible to adjust the eye width by bending the left and right lens barrels 11a and 11b. According to the second method, as described above, a so-called click sound is generated when the engaging protrusion 22e and the engaging portions 15a and 15b get over the protrusions of each other. When the user adjusts the width of the eyelid, the amount of adjustment can be determined using the number of clicks as a guide. For example, even at night, the eyelid width can be adjusted to the user without checking the width of the eyepiece. Better operability such as quick adjustment is obtained.

  In this embodiment, in order to control the collateral width fixing ring 22 to be pressed or separated from the connecting arm end faces 14a and 14b of the binoculars 1 as described above, the lenticule fixing knob 21 and the bolt portion 21b are controlled. It is configured to advance and retract through screw engagement with the female screw 13a. In addition to the advantage that such a screw engagement structure is simple and easy to operate, there is also an advantage that it is easier to apply to binoculars. That is, many binoculars have a common standard screw hole for fixing a tripod adapter (also called a “binocular holder”) for fixing the binoculars to a tripod at one end of the connecting shaft (usually the end on the objective side). From the beginning. In such binoculars, the screw hole can be used as the female screw portion 13a. Therefore, the eyelid fixing device 2 can be used only by a minimum modification such that the engaging portions 15a and 15b are provided on the connecting arm portions 14a and 14b. It is possible to apply. The tripod adapter is well known, and a typical example is shown as “attachment jig 21” in FIG.

  By the way, in this embodiment, the engaging projection 22e of the eyelid fixing ring 22 is provided on the entire circumference of the annular portion 22f, and the two engaging portions 15a and 15b that engage with the engaging projection 22e are connected to the left and right respectively. Although it is provided on the arms 12a and 12b, only one of the engaging portions 15a or 15b may be used, and the angle range that needs to be engaged with the engaging protrusion 22e (bending required for adjusting the eye width) It may be provided in a limited manner over a range of angles. FIG. 4 shows a second embodiment having such a configuration.

  In FIG. 4, the eyepiece fixing device 2 is provided with a protrusion 15 a only on the connecting arm end face 14 a of one of the lens barrels 11 a, and the engaging protrusion 22 e of the eyepiece fixing ring 22 that engages with this is as described above. Only the necessary angle range is provided in the annular portion 22f. For the other lens barrel 11b, a pin hole 15 is provided on the end surface 14b of the connecting arm in parallel with the connecting shaft 13, and a pin 26 that is slidably fitted into the pin hole 16 is provided with an eyepiece fixed ring 22. The annular portion 22f is provided. According to this embodiment, the optic-lens fixed ring 22 is always prevented from rotating with respect to the lens barrel 11b based on the fitting of the pin 26 and the pin hole 16, but with respect to the lens barrel 11a. In the same manner as in the first embodiment, the function of restraining or releasing the bending operation between the left and right lens barrels around the connecting shaft 13 based on the operation of the optic-width fixing knob 21 is exhibited. It can be released. In addition, when attaching / detaching the optic-width fixing device 2 to / from the binoculars frequently, the configuration of the first embodiment that does not require the positioning of the optic-width fixing ring 22 when attached to the binoculars is advantageous.

  FIG. 5 shows a third embodiment of the present invention. In this case, an annular friction member 27 is provided on the annular portion 22f of the eyelid fixed ring 22, and the friction member 27 and binoculars (the connecting arm portion end surfaces 14a and 14b, see FIG. 3) when the eyelid fixed ring 22 is pressed. ) Is fixed based on the frictional force generated between the two. As the friction member 27, for example, a material that generates a required frictional force when pressed against the connecting arm end face of binoculars, such as rubber, leather, or a soft synthetic resin material, is applied. In this embodiment, the coil spring 23 does not necessarily need to be provided, and instead of providing the friction member 27, the optic-lens fixed ring 22 itself may be formed of a material having a high friction coefficient such as rubber. According to this embodiment, since it is not always necessary to provide the engaging portions (15a, 15b) as shown in the previous embodiment on the binoculars side, the binoculars provided with screw holes for fixing the tripod adapter may be used. It can be applied without any modification. In addition, since the frictional force on the left and right connecting arm portions can be adjusted according to the tightening amount of the eyepiece fixing knob 21, for example, by applying to binoculars where the tightening of the connecting shaft has become loose due to long-term use, an appropriate frictional force can be obtained. It is also possible to improve the operational feeling when adjusting the width of the eyes.

  Each of the above-described embodiments has been described as an example in which the colposcope 2 is mounted on the end surface of the connecting arm on the objective side of the binoculars, but the mounting position is not limited to this. For example, in a so-called IF-type binocular that does not have a focus adjustment mechanism such as a focus ring in the connecting shaft portion of the left and right lens barrels, as shown in FIG. 6, the connecting arms positioned on the objective side of the lens barrels 11a and 11b of the binoculars 1 There may be a large space between the connecting portions 12a and 12b and the connecting arm portions 12c and 12d located on the eyepiece side. In such a structure, the front and rear end surfaces of the connecting arm portions 12a and 12b or 12c and 12d (see FIG. It is possible to attach the eyelid fixing device 2 to any of the positions indicated by arrows A, B, C, and D.

  In addition, each of the above embodiments shows an example in which the magnifying glass fixing device 2 is configured to be detachable with respect to the binoculars 1. Of course, the magnifying glass fixing device according to the present invention has binoculars as shown in FIG. It may be a built-in structure. The binoculars 1 shown in FIG. 7 is a so-called CF system, and the focus adjustment is performed by simultaneously moving the left and right eyepieces 18a and 18b back and forth by rotating a focus ring 17 provided coaxially with the connecting shaft 13. It is what I did. In this type of binoculars 1, the hollow shaft 19 is provided coaxially with the connecting shaft 13 between the two sets of connecting arm portions 12 a, 12 b and 12 c, 12 d, and the hollow shaft 19 includes a feed screw mechanism or the like described above. It has a built-in mechanism for focus adjustment. In this embodiment, the eyelid fixing device 2 is assembled coaxially with the hollow shaft 19 so as to face the inner end faces of the connecting arm portions 12a, 12b on the objective side. In this case, if the eye width fixing knob 21 is advanced and retracted based on the engagement with the screw formed on the outer peripheral portion of the hollow shaft 19, the eye is similar to the embodiment shown in FIGS. The displacement of the width fixing ring 22 can be controlled to fix or release the eye width.

  In each of the embodiments described above, in order to control the displacement of the collateral width fixing ring to the state where it is pressed against or separated from the end surface of the connecting arm portion, the lenticule fixing knob is advanced and retracted based on screw engagement. Although an example is shown, the means for obtaining such an action is not limited to the screw mechanism, and for example, a cam mechanism or a clamp mechanism can be applied. Including the above points, each embodiment is merely an example of some configurations of the present invention, and the technical scope of the present invention is not limited to the contents of these embodiments. Needless to say.

1 Binoculars 11a, 11b Lens barrels 12a, 12b Connecting arm (object side)
12c, 12d Connecting arm (eyepiece side)
13 Connecting shaft 13a Female thread (screw hole)
14a, 14b Connecting arm part end faces 15a, 15b Engaging part 16 Pin hole 17 Focus ring 18a, 18b Eyepiece part 19 Hollow shaft 2 Eyepiece fixing knob 21 Eyepiece fixing knob 21a Knob body 21b Bolt part 21c Male thread part 21d Cylindrical Shaped part 22 Specimen fixed ring 22a Large diameter part 22b Small diameter part 22c Taper part 22d Through hole (female screw)
22e engagement protrusion 22f annular part 22g annular groove 23 coil spring (elastic member)
24 Retaining ring (O-ring)
26 pin 27 friction member

Claims (5)

A pair of left and right lens barrels are connected to each other via a connecting shaft provided between the lens barrels so that they can be bent with each other, and the eye width can be adjusted according to the bending angle between the left and right lens barrels with the connecting shaft as the center. A binocular fixation device applied to the binoculars,
A width of eyelid fixing member provided so as to face the end surface of the connecting arm portion extending from each lens barrel toward the connecting shaft, and a state in which the eye width fixing member is pressed against the end surface of the connecting arm portion or a distance An operation member for controlling the displacement to a state to be
The eye width fixing member includes an annular portion formed so as to surround a center of the coupling shaft so as to face the end surface of the coupling arm portion, and the engagement portion in the pressed state. While forming an engaging portion that engages with the protrusion on each of the connecting arm portions,
An elastic member is interposed between the lapis fixing member and the operation member, and the paticular fixing member is elastically biased in the direction of the connecting arm part,
The eyepiece fixing member joins the connecting arm portions of the left and right lens barrels in the pressed state and restrains the bending operation of the left and right lens barrels through the connecting shaft in the joined state. A binocular optic pincage fixing device characterized by the above. A pair of left and right lens barrels are connected to each other via a connecting shaft provided between the lens barrels so that they can be bent with each other, and the eye width can be adjusted according to the bending angle between the left and right lens barrels with the connecting shaft as the center. A binocular fixation device applied to the binoculars,
A width of eyelid fixing member provided so as to face the end surface of the connecting arm portion extending from each lens barrel toward the connecting shaft, and a state in which the eye width fixing member is pressed against the end surface of the connecting arm portion or a distance An operation member for controlling the displacement to a state to be
The eye width fixing member includes a friction member that faces the end surface of the connecting arm portion and simultaneously contacts the end surfaces of the left and right connecting arm portions in the pressed state,
The eyepiece fixing member joins the connecting arm portions of the left and right lens barrels in the pressed state and restrains the bending operation of the left and right lens barrels through the connecting shaft in the joined state. A binocular optic pincage fixing device characterized by the above. In any one of Claim 1 or Claim 2 ,
The operation member is screw-engaged with the shaft end portion of the connecting shaft, and based on the rotation on the screw, the displacement of the eye-width fixing member to the pressed state or the separated state is controlled. A binoculars eyepiece fixing device. In claim 3 ,
The binocular optic pincage fixing device, wherein the operation member is formed so as to be screwed into a screw hole provided in an end portion of the connecting shaft in order to couple a tripod adapter. 5. A binoculars comprising the binocular width fixing device according to any one of claims 1 to 4 .

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