JPH0753061Y2 - Spindle device for operating wheels for binoculars - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a support binocular for a control wheel for adjusting the focus of binoculars.

"Prior Art" Binoculars are equipped with an interpupillary adjustment mechanism for adjusting the eyepieces to the left and right naked eye widths and a focus adjustment mechanism for focusing the left and right optical system mechanisms. Some have a shaft structure.

The binoculars shown in FIG. 7 are an example of a uniaxial type.

In the drawing, the support arm 11b of the lens barrel 11 on the right side and the support arm 12b of the lens barrel 12 on the left side, which are provided in the same manner, are rotated to the support tube 14 in which the central shaft 13 for focusing is inserted. It is movably installed, and supports arm 11 with support tube 14 as a fulcrum.
B and 12b are bent to adjust the interpupillary distance.

The central shaft 13 slides up and down in the support tube 14 in accordance with the rotation of the operation wheel 15 that is screwed, and the right lever 16 rotatably connected to the tip end thereof and the left lever 17 similar to this.
Are moved in the same direction, and the movement of the levers 16 and 17 causes the lens optical systems of the left and right eyepiece lens barrel portions 11a and 12a to be displaced and focus-aligned.

The binoculars shown in FIGS. 8 and 9 are examples of the biaxial type.

The lens barrel 21 on the left side in the drawing is rotatable about a transmission shaft 23 provided on one side of the coupling body 22, and the lens barrel 24 on the right side is rotatable about a transmission shaft 25 on the other side of the coupling body 22, respectively. And the left and right lens barrels 2 using the two transmission shafts 23 and 25.
It is configured to change the interval between 1 and 24 to adjust the interpupillary distance.

That is, the transmission shaft 23 projects into the hinge portion 21a of the left lens barrel 21 near the objective lens, and the small ball 30 is provided in the hinge portion 21b near the eyepiece lens.
b constitutes the spindle.

The right lens barrel 24 has the same configuration.

An end portion of a horizontal plate 26 provided in the connecting body 22 is engaged with each of the above-mentioned transmission shafts 23 and 25.
26 is threadedly connected to a spindle 28 which rotates with a control wheel 27.

When the operation wheel 27 is rotated, the horizontal plate 26 is moved along with the rotation of the spindle 28, and the transmission shafts 23, 25 are slid vertically.

The transmission shaft 23 slides to displace the objective lens optical system of the left lens barrel 21 through the interlocking arm 29 to perform focus matching.

The same applies to the focus adjustment of the right lens barrel 24.

"Problems to be solved by the invention" The uniaxial type binoculars as shown in FIG. 7 are composed of a support tube 14 for bending the left and right lens barrels 11 and 12 and a central shaft 13 for focusing. In addition to the double shaft, the central shaft 13 is provided with a right-side lever 16 and a left-side lever 17 for focusing control and the like, which is an interpupillary adjustment mechanism.

For this reason, the interpupillary distance adjustment mechanism is integrated with the focus adjustment mechanism, which complicates each of these configurations and makes it difficult to assemble each component.

Similar problems occur in the biaxial type binoculars as shown in FIGS. 8 and 9.

That is, the two transmission shafts 23 and 25 serve as a support shaft for adjusting the interpupillary distance, and these also serve as a driving force transmitting member for focus adjustment, so that the interpupillary adjustment mechanism and the focus adjustment mechanism are integrated. Has become.

In view of the above-mentioned problems, the present invention has an interpupillary adjustment mechanism and a focus adjustment mechanism as separate components, simplifies each of these mechanisms, and facilitates incorporation of each component. The purpose is to develop.

[Means for Solving the Problem] In order to achieve the above-mentioned object, the present invention provides a barrel in which an objective lens barrel is slidably inserted in each of the left and right optical system mechanisms, and these barrels are provided. Rotatably inserted into the main body cylindrical portion formed on the left and right sides of the binoculars main body, so that the left and right optical system functions having the eyepiece lens barrel that is eccentrically located with respect to the optical axis of the objective lens In the binoculars provided with an adjusting mechanism, a first inner chamber and a second inner chamber open upward are provided at positions in front of and behind the center of the binocular body, and
While the operation roller wheel in which the shaft portion is fitted in the bearing groove formed in each of the front and rear chamber edge portions of the inner chamber is provided in the first inner chamber, it is inserted so as to be screwed into the operation roller wheel. A moving body is connected to the tip of the screw rod, and the moving body is provided so as to move back and forth in the second inner chamber. The interlocking arms extending to the left and right of the moving body are provided on the outer surfaces of the left and right objective lens barrels. The first and second inner chambers are covered with a focus matching mechanism that interlocks the objective lens with the elongated concave groove formed in the circumferential direction and further has a window hole through which the operation wheel portion protrudes. In this way, a support shaft device for a binocular operation wheel is proposed, which is configured to be fixed to the binoculars body and hold the operation wheel shaft part.

"Operation" If the operation wheel is inserted into the first inner chamber before the cover is covered, the shaft part is dropped into the bearing groove and fitted, and then the cover is attached, The wheel shaft portion is held with the wheel portion protruding from the window of the lid.

Further, when the operation wheel is incorporated as described above, after the operation wheel, the screw rod to be screwed onto the operation wheel, and the moving body having the interlocking arm are integrally assembled in advance, the focus adjustment is performed. The parts for use are incorporated in the first and second inner chambers.

By this assembling, the interlocking arm projects into the concave groove of the objective lens barrel, so the lid can be covered after that, and the assembling of the components of the focus matching mechanism becomes extremely easy.

[Example] Next, an example of the present invention will be described with reference to the drawings.

1 is a partially cutaway plan view of the binoculars taken along the line BB in FIG. 2, and FIG. 2 is a rear view (eyepiece side) of the binoculars.

In these drawings, 31 is a binocular body, 32 is an objective lens barrel, 33, 34 and 35 are axial barrels, an erect image chamber body, and an eyepiece lens barrel.

Each of these members 32 to 35 forms an optical system mechanism 36 on the left side.

The shaft tube 33 is rotatably inserted in a body cylindrical portion 31a integrally formed inside the binocular body 31 in a vertically long manner, and its tip is in contact with a flange portion 31b of the body cylindrical portion 31a.

In addition, an objective lens barrel 32 having an objective lens 37 is slidably mounted inside the shaft barrel 33.

An elongated groove 32b along the optical axis direction is provided around the objective lens barrel 32, and the tip of the pin 38 fixed to the shaft barrel 33 is inserted into the elongated groove 32b so that the objective lens barrel 32 Independent rotation is prevented.

The objective lens barrel 32 is driven by a focus matching mechanism described later.

An erect image chamber body 34 is integrally provided at the rear of the shaft tube 33.

This erect image chamber body 34 is a known prism for erecting an image.
39 and 40 are provided inside and one side thereof is on the cylinder axis of the objective lens barrel 32 (in this embodiment, the objective lens 37
On the optical axis line).

Further, an eyepiece lens barrel 35 is provided on the other rear surface of the erect image chamber body 34 protruding from the binoculars body 31, and an eyepiece lens 41 is incorporated in the lens barrel 35.

An elastic plate 43 covered by a back cover 42 is fixed to the back side of the binocular body 31 by a screw 44 screwed into the binocular body 31.

This elastic plate 43 is an erect image chamber body with the small balls 45 interposed.
It constitutes a spindle mechanism that pushes 34 forward.

That is, as shown in a partially enlarged view in FIG. 5, the small sphere 45 pressed by the elastic plate 43 is fitted into the conical small hole 34a formed on the back surface of the erect image chamber body 34, and the small sphere 4
5 is located on the extension line of the objective lens barrel 32 (on the extension line of the optical axis of the objective lens 37 in this embodiment).

On the other hand, the above-mentioned optical system mechanism 36 rotates the operation wheel 46 to perform focus adjustment.

The operation wheel 46 is rotatably supported by the binoculars main body 31 with the support shafts on both sides as shown in FIG. 3, and has a screw hole 46a in which a female screw is engraved to form the screw hole 46a. A screw rod 47 is inserted in this.

A male screw is engraved on the screw rod 47, and the screw rod 47 advances and retreats in the front-rear direction as the operation wheel 46 rotates.

A movable body 49 having two interlocking arms 48a and 48b fixed thereto is integrally provided at the front end of the screw rod 47, and the interlocking arm 48a is provided in the main body cylindrical portion 3
It passes through the notch hole 31a _{1 of} 1a and the notch hole 33a of the shaft cylinder 33 and projects into the concave groove 32a of the objective lens barrel 32.

The moving body 49 has a rising portion on the rear end side, and two guide ridge portions 31 integrally formed on the binocular body 31 on the bottom surface side.
Slide between c and 31d.

The notch hole 33a described above is formed by the movement of the interlocking arm 48a in the front-rear direction and the barrel.
It is a four-sided hole defined within the range allowing rotation of 33, and the above-mentioned notch hole 31
a ₁ has a hole diameter similar to this four-sided hole, and the concave groove 32a is an elongated groove formed along the circumferential direction of the objective lens barrel 32 as shown in FIG. The interlocking arm 48a is interlocked only in the front-rear direction to slide.

Although the optical system mechanism 36 on the left side has been described, the optical system mechanism 50 on the right side has the same configuration, 51 is an objective lens barrel, 52 is an erect image chamber body, and 53 is an eyepiece lens barrel.

Next, the focusing mechanism of the above-mentioned binoculars will be described in a little more detail.

The binoculars body 31 has a first inner chamber 54 and a second inner chamber 55, whose upper surfaces are open, formed between the left and right optical system mechanisms 36 and 50. As shown in FIG. Operation wheel 46 in the inner chamber 54 of 1
The moving body 49 is provided in the second inner chamber 55.

That is, the back of the binoculars body 31 forming the first inner chamber 54
Bearing concave grooves 5 facing each other on the upper surfaces of 31e and the partition and 31f.
6 and 57 are formed, and the rolling wheel shafts 46b and 46c of the operation rolling wheel 46 are fitted into these bearing concave grooves 56 and 57 so as to be dropped.

The operation wheel 46 is incorporated after the left and right optical system mechanisms are assembled.

As described above, the operation wheel 46 has the screw rod 47 and the moving body 4
9. Since the interlocking arms 48a and 48b are integrally connected, each of these parts is incorporated together by incorporating the operation roller 46 as described above.

In this case, as shown in FIG. 4, the interlocking arm 48a has the cutout 3
1a ₁ and 33a enter from above and the concave groove 32a of the objective lens barrel 32
Reach in.

The same applies to the right interlocking arm 48b.

The wheel shafts 46b and 46c fitted as described above are prevented from coming off by attaching a lid 58 that covers the first inner chamber 54 and the second inner chamber 55.

The lid 58 is provided with a window hole 58a for partially protruding the operation wheel 46, and is attached using a locking mechanism provided between the lid 58 and the binocular body 31. It may be applied by fixing with an adhesive.

In the binoculars having the above-mentioned configuration, when the eyepiece lens barrel 35 is pivotally operated so as to be aligned with the naked eye distance, the barrel 35 causes the barrel 33 to move.
Is used as a rotation axis, and the small ball 45 is used as a fulcrum to turn.

If the eyepiece lens barrel 53 on the right side is similarly rotated, the interpupillary distance can be adjusted as shown by a phantom line in FIG. 2 as an example.

At the time of this interpupillary adjustment, the notch hole 33a of the shaft tube 33 is an escape hole,
Since the concave groove 32a of the objective lens barrel 32 serves as an escape groove, the interlocking arm 48a is not affected at all.

This also applies to the optical system mechanism 50 on the right side.

In focusing, the operation wheel 46 is rotated.

According to the left rotation or right rotation of the operation wheel 46, the screw rod 47 moves in the front-rear direction, and accordingly, the interlocking arms 48a, 48b also move in the same direction.

The rotation of the screw rod 47 during this operation is prevented by the moving body 49 being fitted into the two guide ridges 31c and 31d, and the interlocking arm 48a has the cutout hole 31a ₁ and the interlocking arm 48a. It does not affect the barrel 33 because it moves inside the 33a.

The objective lens barrel 32 is driven by the movement of the interlocking arm 48a, slides in the barrel 33, and works to align the focus of the left optical system mechanism 36.

The optical system mechanism 50 on the right side is interlocked by the interlocking arm 48b, and the focus is similarly adjusted.

[Advantages of the Invention] As described above, the spindle device for the operation wheel according to the present invention has the operation wheel, the screw rod screwed to the operation wheel, and the copper body that interlocks the objective lens barrel in advance. After the assembly, the shaft portion of the operation wheel is dropped into the bearing groove of the first inner chamber edge, and the focus matching components are incorporated into the first and second inner chambers of the binocular body.

By this incorporation, the interlocking arm provided on the moving body projects into the concave groove of the objective lens barrel, so that the cover is held thereafter to hold the wheel shaft, so that the interpupillary adjustment mechanism and the focus alignment mechanism are separated. Can be configured to.

This simplifies the configuration of the interpupillary adjustment mechanism and the focus matching mechanism, and also reduces the number of parts. In particular, the focus matching parts are assembled in advance as first and second integrated parts. It is possible to provide binoculars which are easy to produce because they can be incorporated into the inner chamber of the vehicle, and these components are attached only by covering them.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention. FIG. 1 is a partially cutaway plan view of binoculars taken along line BB in FIG. 2, and FIG. 2 is the binoculars described above. FIG. 3 is a plan view of the binoculars partially cut away, FIG. 4 is a vertical sectional view of an objective lens barrel portion of the binoculars, and FIG. 5 is a small ball fulcrum of the lens barrel. FIG. 6 is an enlarged partial sectional view, FIG. 6 is a side view of the central longitudinal section of the binoculars, FIGS. 7 to 9 show a conventional example, and FIG. 7 is a partially cutaway plan view showing the uniaxial type binoculars. 8 is a partially cutaway plan view showing the biaxial type binoculars, and FIG. 9 is a sectional view taken along the line AA in FIG. 31 …… Binocular body 31a …… Main body cylindrical part 31a ₁ …… Notch hole 32 …… Objective lens barrel 32a …… Concave groove 33 …… Shaft barrel 33a …… Notch hole 34 …… Erect image chamber body 35 …… Eyepiece Lens barrel 36 …… Optical system mechanism 46 …… Operation wheel 46a …… Screw hole 46b, 46c …… Roller shaft 47 …… Screw rod 48a, 48b …… Interlocking arm 49 …… Movement 54 …… First Inner chamber 55 …… Second inner chamber 56, 57 …… Bearing groove 58 …… Lid

Continuation of the front page (56) References JP-A-55-157713 (JP, A) JP-A-60-209712 (JP, A) Actual development 52-109850 (JP, U) JP-B-35-16939 (JP , B1) Jitsuko Sho 51-51633 (JP, Y1)

Claims (1)

[Scope of utility model registration request] Claims: 1. A left and right optical system mechanism is provided with shaft barrels in which an objective lens barrel is slidably inserted, and the shaft barrels can be rotated in a main body cylindrical portion formed on the left and right sides of a binocular body. In the binoculars equipped with the interpupillary adjustment mechanism that rotates each of the left and right optical system mechanisms having the eyepiece lens barrel that is eccentrically distributed with respect to the optical axis of the objective lens, the positions of the front and rear positions of the center of the binocular body A first inner chamber and a second inner chamber that are open upward, and an operation roller wheel in which a shaft portion is fitted in bearing concave grooves formed in front and rear chamber edge portions of the first inner chamber. First
On the other hand, the movable body is connected to the front end of the screw rod which is inserted so as to be screwed into the operation roller, and the movable body is moved back and forth in the second inner chamber. Equipped with a focus alignment mechanism that interlocks the objective lens by inserting the interlocking arms that extend to the left and right of the moving body into the elongated grooves formed in the peripheral direction of the outer surface of the left and right objective lens barrels. An operation wheel for binoculars, characterized in that the operation wheel shank is attached to the binoculars main body by covering the first and second inner chambers with a cover provided with a window hole to protrude and holds the operation wheel axle. Spindle device.