JP4852566B2 - Mounting attachment for optical equipment - Google Patents

Description

  The present invention relates to an attachment for mounting an optical device such as a helmet-mounted display (HMD), particularly a half-type helmet.

  Conventionally, there are attachments for attaching various optical devices to a half-type helmet that mainly covers only the user's head. The following two types of methods for fixing the attachment attachment to the helmet are typical.

  In the first type, a helmet is drilled, and an attachment for holding an optical device is directly fixed to the drilled portion. This type of fixing method requires processing of the helmet and also has the inconvenience of detaching the attachment attachment itself. In addition, although this type of attachment is advantageous in that it is firmly fixed to the helmet, most of the attachments cannot adjust the angle and position of the attached optical device.

  The second type is to fix a mounting attachment provided with a clip-like fastening means or a fastening means of a type sandwiched by screws between the edges of the helmet. This type of fixing method is easy to attach and detach, but has a disadvantage that the attachment attachment is displaced when hooked during use because of its small holding force. In addition, this type of attachment may be displaced due to vibration at the time of attachment, and there is a disadvantage that it is difficult to maintain the angle and position of the attached optical device.

  As a conventional technique of this type, a case is provided on the side portion of the helmet, a slide member that is slidable in the front-rear direction from the case, a first ball joint provided on the slide member, and an image display There is a head mounted display in which the slide member and the image display unit are connected by a connecting shaft through a second ball joint provided in the unit (see, for example, Patent Document 1). In addition, as a ball joint (ball joint) used in this prior art, there is one in which an inner sphere ring which is a substantially spherical sphere head provided in a bearing is pressed in an axial direction by an elastic body. (For example, refer to Patent Document 2).

However, in the case of the invention described in Patent Document 1, the angle and position of the attached optical device are maintained depending on the weight of the optical device in order to support the optical device and the like on the side of the user's head. In addition, there is an inconvenience that the optical device is displaced by being caught during use. Even if an attempt is made to maintain the position of the optical device by applying the invention described in Patent Document 2 to the invention of Patent Document 1, the invention of Patent Document 2 results in a ball joint having a complicated structure. Is difficult to use.
JP 2006-319440 A JP 2002-139023 A

  The present invention has been made in view of such circumstances, and can be firmly attached to a half-type helmet, and can be easily attached and detached, so that the attached optical apparatus can be reliably adjusted. It aims at providing the attachment for equipments.

An attachment for an optical device according to the present invention is an attachment for mounting an optical device on a half-type helmet, abutting the front surface of the helmet, and forming a lower portion in a hook shape on the front edge of the helmet. An attachment front part that engages, an attachment rear part that is formed in a hook shape and engages a rear edge of the helmet, extends in the front-rear direction along the upper surface of the helmet, and includes the attachment front part and the attachment rear part. A strap to be connected; and an adjustment mechanism that is provided at a front portion of the attachment and holds the optical device in an adjustable manner , and the adjustment mechanism is configured to be capable of adjusting a lateral movement of the optical device, The adjustment mechanism for moving in the left-right direction is fixed to the optical device so as to be rotatable, and is formed at the front part of the attachment. A first eccentric shaft inserted through the first slit in the right direction and configured to be movable along the first slit; a first operating lever coupled to the first eccentric shaft; And the first eccentric shaft is rotated by rotating the first operating lever, and the first slit is formed by frictional engagement between the first eccentric shaft and the first slit. It is comprised so that the position of the said 1st eccentric shaft with respect to may be fixed .

According to this configuration, the optical device can be firmly attached to the half-type helmet, and can be easily attached / detached. Therefore, the attached optical device can be reliably adjusted. Further, the user can easily adjust the position in the left-right direction by operating the optical device.

  The hook-shaped part of the front part of the attachment includes a pair of front-side hook-like parts that are arranged along the front edge part so as to support two points from the rear surface on the front edge part of the helmet. It is possible. According to such a configuration, the mounting stability of the front part of the attachment is improved.

  Each of the pair of front hook-shaped portions may be formed such that an opening angle of the front hook-shaped portion is about 65 ° ± 5 °. According to such a configuration, attachment to and removal from a general-purpose helmet is easy, and if it is within this angle range, the mounting stability can be improved.

  The rear part of the attachment may include a plurality of rear hook-like parts arranged along the rear edge part so as to support two points from the front surface on the rear edge part of the helmet. According to this configuration, it is possible to improve the mounting stability of the rear part of the attachment.

  The plurality of rear hook-shaped portions may be arranged at an angle to each other so as to follow a curve of a rear edge portion of the helmet. According to such a configuration, it is easy to attach to and remove from the helmet, and the mounting stability can be improved.

  The strap is looped around a slit formed in at least one of the front part of the attachment and the rear part of the attachment, and the length can be adjusted by a surface fastener provided on the opposing surface of the loop. It can be fastened. According to such a configuration, it is easy to apply to helmets of various sizes, and the user can arbitrarily adjust the fastening force between the front part of the attachment and the rear part of the attachment according to the degree of elasticity of the strap. Can do.

  The strap may include a restraining portion for restraining the wiring of the optical device held on the front side in the middle when the wiring of the optical device is routed rearward along the longitudinal direction of the strap. According to such a configuration, it is easy to route and fix the wiring of the optical device arranged in front of the user so as not to disturb the user.

  The constraining portion extends, for example, on both sides of the strap in the width direction, and is configured to constrain the wiring by overlapping end portions extending on both sides, and is fastened by a surface fastener provided at the overlapping portion. Is possible.

The adjustment mechanism, the left and right movement of the optics back and forth movement, up and down movement, left-right direction turning, and it is possible to vertically is adjustably configured at least one of the direction turning. According to this configuration, it is possible to adjust the optical device with a maximum of 5 degrees of freedom.

  The adjustment mechanism includes, for example, a rack member that extends in the front-rear direction and is fixed to the optical device, a latch member that is selectively engageable with any rack tooth of the rack member, and the latch member And urging means for urging the urging member in a direction to engage with the rack teeth. According to this configuration, the user can easily adjust the position of the optical device in the front-rear direction by operating the latch member.

  For example, the adjustment mechanism is rotatably fixed to the optical device, is inserted into a second slit in the vertical direction formed in the left / right adjustment mechanism, and is configured to be movable along the second slit. The second eccentric shaft and a second operating lever connected to the second eccentric shaft can be provided. In this case, the adjustment mechanism rotates the second eccentric shaft by rotating the second operation lever, and the friction engagement between the second eccentric shaft and the second slit causes the adjustment mechanism to rotate the second eccentric shaft. It can be configured to fix the position of the second eccentric shaft with respect to the second slit. According to such a configuration, the user can easily adjust the vertical position by operating the optical device.

  The adjustment mechanism can be configured, for example, by extending in the vertical direction and frictionally supporting a vertical axis provided between the adjustment mechanism and the optical device so as to be rotatable around the axis. According to this configuration, the user can easily adjust the left / right turning angle by operating the optical device.

  The adjustment mechanism can be configured, for example, by extending in the left-right direction and frictionally supporting a left-right shaft provided between the optical device and the optical device so as to be rotatable around the shaft. According to this configuration, the user can easily adjust the vertical turning angle by operating the optical device.

  According to the above-described invention, it is possible to provide an attachment for an optical device that can be firmly attached to a half-type helmet and that can be easily attached and detached, and thus can reliably adjust the attached optical device. .

  Hereinafter, the attachment for an optical device according to the present invention will be described in detail with reference to the attached drawings.

  Note that terms indicating directions such as “front”, “rear”, “upper”, “lower”, “right”, and “left” in the present specification and claims are defined by the user according to the present invention. It should be noted that only the relative direction in the normal posture in the normal state with the optical device attachment attached is shown, not the absolute direction.

  As shown in the perspective view from the left front in FIG. 1, the optical device mounting attachment 10 according to the embodiment of the present invention includes an attachment front portion 20, an attachment rear portion 30, a strap 40, and an adjustment mechanism 50. .

  As shown in FIG. 2 showing an example of mounting on a half-type helmet 700 (indicated by a two-dot chain line), the attachment front portion 20 includes a base portion 210 that comes into contact with the front surface of the helmet 700 and a downward direction from the base portion 210. A front hook portion 220 that extends and engages with the front edge portion of the helmet 700 is provided. Further, the attachment rear portion 30 is formed in a hook shape and is configured to engage with the rear edge portion of the helmet 700. The strap 40 extends in the front-rear direction along the upper surface of the helmet 700, and connects the attachment front part 20 and the attachment rear part 30. Further, the adjustment mechanism 50 is provided in the attachment front portion 20, and holds the optical device 600 in an adjustable manner.

  As will be described in detail later, the adjustment mechanism 50 according to the present embodiment has a function of adjusting the position and angle of the optical device 600 within a very large range. One having a wide range can be adopted, and therefore, there is an advantage that the mounting deviation of the optical equipment mounting attachment 10 can be allowed in a large range.

  First, the attachment front part 20 will be described in detail. Referring also to FIG. 3, the base portion 210 of the attachment front portion 20 is a plate-like member formed of a lightweight synthetic resin such as ABS, and has a curved shape according to the front shape of the helmet 700 against which the base portion 210 abuts. I am doing. A slit 212 in the left-right direction is formed in the upper portion of the base portion 210, and the front end portion of the strap 40 is inserted into the slit 212 from the inside (rear side). The inserted strap 40 is looped and riveted.

  At the lower portion of the base portion 210, one front hook portion 220 is provided on each of the left and right sides. The front hook portion 220 is made of a metal plate having a predetermined elasticity, extends downward, and is bent rearward to form a hook shape as a whole. As described above, the front hook-shaped portion 220 has a relatively large size and has a predetermined elasticity, so that it can be stably attached to various types of half-type helmets 700.

  As shown in FIG. 4, the opening angle of the front hook-shaped portion 220 is not limited to this angle, but is 65 ° ± 5 °. Is most stably engaged with the helmet 700. In addition, a cap 222 made of a soft synthetic resin such as rubber is put on the front end portion of each front hook-like portion 220, thereby improving the coefficient of friction with the helmet 700 to be engaged.

  Further, in the present embodiment, as shown in FIG. 3, the two front hook-shaped portions 220 have a two-point support structure that is arranged at an appropriate distance from each other on the left and right sides, and thus curved. The helmet 700 having the front edge can be stably attached. The curved shape of the base portion 210 as described above also results in improving the adhesion between the front hook-shaped portion 220 and the helmet front edge and the mounting stability.

  Next, the attachment rear part 30 will be described in detail. Referring also to FIG. 5, the attachment rear portion 30 is made of a metal plate, and a lower portion thereof is bent forward, and a tip portion is branched into two and further bent upward to be configured as a hook-like portion 302 as a whole. Yes. The upper portion 306 of the attachment rear portion 30 extends upward, and a slit 304 in the left-right direction is formed at the upper end portion thereof. The rear end portion of the strap 40 is inserted into the slit 304 from the inside (front side). The inserted strap 40 is looped around and can be attached and detached by hook and loop fasteners 402a and 402b (see also FIG. 6) provided on opposing surfaces.

  As shown in FIG. 5, in order for the attachment rear portion 30 to have a two-point support structure, the two rear hook-shaped portions 302 are arranged at an appropriate distance from each other on the left and right sides. A helmet 700 having a curved rear edge (its size is indicated by a radius R) is stably attached. Further, the two rear hook-like portions 302 are arranged at an angle with each other along the curve of the rear edge of the helmet 700, thereby further improving the mounting stability. In this manner, the two rear hook-shaped portions 302 can be held so as to sandwich the rear edge portion of the helmet 700 between the upper portion 306 and the rear portion.

  As shown in FIGS. 1, 2, and 4, the strap 40 extends in the front-rear direction along the upper surface of the helmet 700. The strap 40 is made of, for example, a nylon material having a certain degree of flexibility, and a surface fastener 402b to which the surface fastener 402a described above is affixed to most of the helmet 700 from the top to the rear. Is provided. As described above, since the surface fastener 402b is provided in a very long region in the front-rear direction, the strap 40 has a very large length adjustment freedom at the rear part, and the attachment front part 20 and the attachment rear part to be connected. Tension between 30 is also easy to adjust according to user preference.

  As shown in FIG. 6, flap-shaped cable fixing bands 404 and 406 extending in the left-right direction are provided in the middle of the strap 40, in the present embodiment, at the top of the helmet 700. The cable fixing bands 404 and 406 are fixed in the middle when the wiring 602 (see FIGS. 1 and 2) of the optical device 600 held on the front side is routed rearward along the longitudinal direction of the strap 40. belongs to. The cable fixing bands 404 and 406 are folded over to hold the wiring between the upper surface of the strap 40 (see FIG. 2 for the folded state). The cable fixing bands 404 and 406 are provided with surface fasteners 404a and 406a that are attached to each other and also attached to the surface fastener 402b described above.

  Any number of such cable fixing bands 404 and 406 can be provided not only at the top portion of the helmet 700 but also at any position along the longitudinal direction of the strap 40, and simply for fixing the wiring 602. In addition, it can be used for bundling and fixing excess portions of the wiring 602.

  Returning to FIG. 2, the adjustment mechanism 50 according to the present embodiment includes a forward / backward movement mechanism 510, a left / right turning mechanism 530, an up / down turning mechanism 550, an up / down moving mechanism 570, and a left / right moving mechanism 590, and has 5 degrees of freedom. Is secured. Each of the mechanisms 510 to 590 extends forward and downward from the base portion 210 of the attachment front portion 20 in the reverse order shown here, and the optical device 600 is fixed to the lower surface of the forward / backward moving mechanism 510 at the tip. It has become.

  In the present embodiment, the optical device 600 is a helmet-mounted display (HMD) as described above, but in addition to this, various other optical devices such as a night vision device, a night vision scope, and a flash light. It is possible that

  Since the optical device 600 in the present embodiment is an example of an HMD, when used, the optical device 600 is placed immediately before either the left or right eye 800 of the wearing user (see FIG. 2). On the upper surface of the casing of the optical device 600, a gate-like support portion 512 of the forward / backward movement mechanism 510 is fixed. A latch member 514 that extends the operation portion 514a forward is supported on the support portion 512 so as to be rotatable on a rotation shaft 516 in the left-right direction. The rack member 518 extending in the front-rear direction is disposed below the latch member 514, and is connected to the adjacent left / right turning mechanism 530 at the rear end (see FIG. 9).

  The forward / backward movement mechanism 510 is a simple latch mechanism as schematically shown in FIG. 8, and a plurality of rack teeth 518 a are formed on the upper surface of the rack member 518 in the front-rear direction. The latch member 514 is formed so that its rear end is directed downward so as to mesh with any one of the rack teeth 518a, and a torsion coil spring 511 as an urging means (see FIGS. 11 and 14 for an example of an actual spring) ) Is biased in the direction of meshing with the rack teeth 518a. As the urging means, any means can be adopted as long as it can be urged in the direction of meshing with each other.

  With the configuration of the forward / backward moving mechanism 510 as described above, as shown in FIG. 7, when the user pushes down the operation portion 514a of the latch member 514 (see the white arrow in FIG. 7), the optical device 600 can be adjusted in the front-rear direction within the formation range of the rack teeth 518a and the formation interval of the rack teeth 518a (see also FIG. 9). In this embodiment, nine stages of adjustment are possible.

  Next, the left / right moving mechanism 590 will be described in detail. As shown in FIGS. 10 and 11, the left-right moving mechanism 590 is directly attached to the base portion 210 of the attachment front portion 20, and realizes left-right movement with respect to the base portion 210 by the following structure. .

  A left and right slit 214 is formed in the center of the base portion 210. Further, referring to the right sectional view of FIG. 12, the left and right moving mechanism 590 has a box shape with a thin thickness in the front and rear direction as a whole. In addition, an operation lever 594 is disposed inside the box-shaped casing 592. The operation lever 594 has a length that sufficiently protrudes from the openings 592a formed on the left and right end surfaces of the casing 592, and the both ends thereof are the operation portions 594a. In the present embodiment, the total length of the operation lever 594 is about 8 cm.

  In the central portion of the operation lever 594, a pin-shaped rotation shaft 596 extends in the front-rear direction from the front, and is arranged corresponding to the position of the slit 214. From the rear side of the base portion 210, an eccentric slide nut 598 having the same diameter as the width of the slit 214 is fitted and fixed to the rotating shaft 596 with screws. The eccentric slide nut 598 has an eccentric shape with respect to the rotation center of the rotation shaft 596 (indicated by a one-dot chain line in FIG. 12). More specifically, in the present embodiment, the eccentric slide nut 598 has a columnar portion inclined at a predetermined angle with respect to the rotation center of the rotating shaft 596, and is fitted to the slit 214 at this columnar portion. Yes.

  In the rotational position of the eccentric slide nut 598 in FIG. 12, the eccentric slide nut 598 can freely move in the left-right direction in the slit 214. That is, the entire left / right moving mechanism 590 can freely move in the left / right direction.

  From this state, for example, when the user operates the operating lever 594 in the direction as indicated by an arrow in FIG. 10, the rotating shaft 596 is rotated together therewith. At this time, since the eccentric slide nut 598 eccentric to the rotation shaft 596 is fixed to the rotation shaft 596, the eccentric slide nut 598 that is rotated together with the rotation shaft 596 is in a state of being twisted in the slit 214. The frictional force increases in the slit 214. As a result, the left-right direction position of the left-right moving mechanism 590 is fixed.

  Note that reference numeral 591 shown in FIGS. 10 and 11 is a stopper portion, which defines the rotation angle range of the operation lever 594. As a result, the operation lever 594 is not rotated more than necessary, and the possibility of failure due to excessive rotation of the operation lever 594 can be reduced.

  The horizontal adjustment range (see FIG. 11) of the left / right moving mechanism 590 is defined by the length of the slit 214, but may be about the range of the eye 800 on one side of the user for simple adjustment purposes. However, in the present embodiment, it is configured so that it can be moved to the left and right over the range of both eyes, so that, for example, the position of either eye 800 can be arranged according to the dominant eye of the user. It is like that.

  Next, the vertical movement mechanism 570 will be described in detail with reference to FIGS. 13 and 14. The vertical movement mechanism 570 is attached to the front surface of the above-described horizontal movement mechanism 590 via an angle adjustment adapter 570A. The angle adjustment adapter 570A is arranged so that the vertical movement mechanism 570 is substantially vertically aligned with the base portion 210 and the left / right movement mechanism 590 attached to the front surface tilted to the rear side of the helmet 700 during normal use by the user. (See, for example, FIG. 2). However, it goes without saying that the angle adjustment adapter 570A can be substituted by the shape of the casing 592 (see FIG. 12) of the left-right movement mechanism 590 or the shape of the casing 572 of the vertical movement mechanism 570 itself. In the present embodiment, in order to make the structure of the vertical movement mechanism 570 common to the structure of the left / right movement mechanism 590, only such an angle adjustment adapter 570A is disposed. The same parts as the left / right moving mechanism 590 are not shown, or the same reference numerals are given, and the detailed description thereof is omitted.

  Therefore, in the present embodiment, a slit for sliding the vertical movement mechanism 570 in the vertical direction is formed on the front surface of the angle adjustment adapter 570A, and is not shown here.

  Further, in the present embodiment, as shown in FIGS. 13 and 14, the vertical movement mechanism 570 has an arrangement configuration in which the rotation axes of the vertical movement mechanisms 590 are substantially coincided with the front surface of the horizontal movement mechanism 590. The user can, for example, simultaneously operate the two operation levers 574 and 594 with one hand to adjust the vertical and horizontal directions simultaneously. Further, in this embodiment, the user can know which operating lever is operated by groping by making the front operating lever 574 slightly shorter than the rear operating lever 594. It is easy. Further, since the two operation levers 574 and 594 are configured to fix or release the adjustment by rotating in the same direction, the possibility of erroneous operation is also reduced.

  Next, the left / right turning mechanism 530 will be described in detail with reference to FIGS. 15 and 16. The left / right turning mechanism 530 is provided at the rear end of the upper surface of the front / rear moving mechanism 510. As shown in FIG. 16, the left / right turning mechanism 530 includes a turning shaft 532 in the vertical direction, and the lower end portion of the turning shaft 532 is fixed to the forward / backward movement mechanism 510. The upper part of the turning shaft 532 is frictionally supported by an appropriate member of the left / right turning mechanism 530. As a result, the forward / backward moving mechanism 510 holding the optical device 600 is supported together with the turning shaft 532 so as to be able to turn left and right via a predetermined frictional force. In the present embodiment, it is configured to be able to turn 40 ° to the left and right, and 45 ° is set as an allowable range.

  Next, the vertical turning mechanism 550 will be described in detail with reference to FIG. The vertical turning mechanism 550 includes a box-shaped casing 552, and the casing 552 is fixed to the lower end portion of the vertical movement mechanism 510. The casing 552 frictionally supports the turning shaft 554 in the left-right direction inside. A left / right turning mechanism 530 is fixed to the turning shaft 554. Thus, the optical device 600 is supported so as to be able to turn up and down through a predetermined frictional force together with the forward / backward moving mechanism 510 and the left / right turning mechanism 530. In the present embodiment, the optical device 600 is configured to be able to turn from a horizontal state by 25 ° toward the front (allowable range is up to 30 °) and upward by 60 ° (allowable range is up to 90 °). ing.

  Accordingly, as shown in FIG. 17, the optical device 600 has an adjustment function in the up-and-down turning direction, and when the user does not use the optical device 600, the optical device 600 is turned up to the upper end position and fixed at the position where it is flipped up. It is possible to keep the field of view when not in use.

  As described above, the optical device mounting attachment 10 according to the present embodiment has a simple configuration in which the attachment front portion 20 and the attachment rear portion 30 are connected by the strap 40 that can be adjusted in length, and thus the optical device 600 is removed. In addition, the helmet 700 can be attached and detached without the need for disassembling the optical device mounting attachment 10 itself.

  In addition, since the optical equipment mounting attachment 10 according to the present embodiment has a very large adjustment range, it is possible to adopt a lower accuracy as the optical equipment 600, and also the user It is possible to adapt flexibly to individual differences among users such as visual acuity.

  Moreover, since the use of metal is fastened to the front and rear hooks, hinges, and screws as the entire optical equipment attachment 10, the weight can be reduced and the burden on the user is reduced. Moreover, since there is little use of a metal, it has the advantage that the influence on a magnetic product can be made small also when using it for uses, such as a landmine detection, for example.

  Furthermore, since the attachment rear part 30 having a simple configuration can be easily removed from the strap, it can be easily replaced with one corresponding to the shape and type of the helmet 700.

  As described above, the optical device mounting attachment according to the present invention can be firmly attached to the half-type helmet, and can be easily attached and detached, so that the attached optical device can be reliably adjusted. The present invention can be applied to applications that provide equipment attachments.

It is a perspective view from the left front which shows the whole structure of the attachment attachment for optical devices which concerns on embodiment of this invention. It is a left view which shows the example of attachment to the half type | mold helmet of the attachment for optical apparatuses shown in FIG. It is a perspective view which shows the attachment method to the helmet front part of the attachment front part of the attachment for optical apparatuses shown in FIG. It is a side view which shows the structure of the front side hook part of the attachment for optical apparatuses shown in FIG. It is a perspective view which shows the attachment method to the helmet rear part of the attachment rear part of the attachment for optical apparatuses shown in FIG. It is a perspective view from the left rear of the helmet which shows the structure of the strap of the attachment for optical apparatuses shown in FIG. It is a perspective view from the left front which shows the structure of the back-and-forth movement adjustment mechanism of the attachment for optical apparatuses shown in FIG. It is a typical left view which shows the detailed structure of the front-back movement mechanism shown in FIG. It is a left view which shows the structure of the left-right movement mechanism of the attachment for optical apparatuses shown in FIG. It is a perspective view from the left front which shows the structure of the left-right movement mechanism of the attachment for optical apparatuses shown in FIG. It is a front view which shows the right-and-left movement of the attachment attachment for optical devices by the left-right movement mechanism shown in FIG. It is right side sectional drawing which shows the internal structure of the left-right moving mechanism shown in FIG. It is a perspective view from the left front which shows the structure of the up-and-down moving mechanism of the attachment for optical apparatuses shown in FIG. It is a front view which shows the vertical movement of the attachment attachment for optical devices by the vertical movement mechanism shown in FIG. It is a perspective view from the left front which shows the structure of the right-and-left turning mechanism of the attachment for optical apparatuses shown in FIG. It is a top view which shows the left-right turning of the attachment for optical apparatuses by the left-right turning mechanism shown in FIG. It is a right view which shows the structure of the up-and-down turning mechanism (also functioning as a flip-up function) of the attachment for optical equipment shown in FIG.

Explanation of symbols

10 Mounting attachment for optical equipment
20 Attachment front
30 Rear of attachment
40 strap
50 Adjustment mechanism
210 Base part
220 Front hook-shaped part
302 Rear hook-shaped part
402a, 402b surface fastener
404, 406 cable fixing band
404a, 406a hook-and-loop fastener
510 Forward / backward moving mechanism
511 Torsion coil spring (biasing means)
514 Latch member
518 Rack member
518a rack teeth
530 Left / right turning mechanism
532 Swivel axis
550 Vertical turning mechanism
554 swivel axis
570 Vertical movement mechanism
574 Control lever
576 rotation axis
590 Horizontal movement mechanism
594 Control lever
596 rotation axis
598 Eccentric slide nut
600 Optics
602 (Optical equipment) wiring
700 half helmet
800 User's eyes

Claims (12)

An attachment for attaching an optical device to a half-type helmet,
An attachment front part that abuts on the front surface of the helmet and has a lower part formed in a hook shape and engages a front edge part of the helmet;
An attachment rear portion formed in a hook shape and engaged with a rear edge portion of the helmet;
A strap that extends in the front-rear direction along the upper surface of the helmet and connects the front part of the attachment and the rear part of the attachment;
An adjustment mechanism that is provided at the front of the attachment and holds the optical device in an adjustable manner ;
The adjustment mechanism is configured to be capable of adjusting the lateral movement of the optical device,
The adjustment mechanism for moving in the left-right direction is fixed to the optical device so as to be rotatable, is inserted into a first slit in the left-right direction formed in the front part of the attachment, and is movable along the first slit. A first eccentric shaft configured; and a first operating lever coupled to the first eccentric shaft, wherein the first eccentric shaft is moved by rotating the first operating lever. The position of the first eccentric shaft with respect to the first slit is fixed by rotating and frictionally engaging the first eccentric shaft with the first slit. Mounting attachment for optical equipment.   The hook-shaped part of the front part of the attachment includes a pair of front-side hook-like parts arranged along the front edge part so as to support two points from the rear surface on the front edge part of the helmet. The attachment for optical equipment according to claim 1, wherein:   3. The optical device mounting according to claim 1, wherein each of the pair of front hook-shaped portions is formed so that an opening angle of the front hook-shaped portion is about 65 ° ± 5 °. attachment.   The rear portion of the attachment includes a plurality of rear hook-shaped portions arranged along the rear edge portion so as to support two points from the front surface on the rear edge portion of the helmet. Item 4. An attachment for optical equipment according to any one of Items 1 to 3.   5. The attachment for an optical device according to claim 4, wherein the plurality of rear hook-shaped portions are arranged at an angle so as to follow a curve of a rear edge portion of the helmet.   The strap is looped around a slit formed in at least one of the front part of the attachment and the rear part of the attachment, and the length can be adjusted by a surface fastener provided on the opposing surface of the loop. The attachment for optical equipment according to claim 1, wherein the attachment is fastened.   The strap includes a restraining portion for restraining the wiring of the optical device held on the front side in the middle when the wiring of the optical device is routed rearward along the longitudinal direction of the strap. The attachment for optical equipment according to claim 6.   The constraining portion extends to both sides of the strap in the width direction, and is configured to constrain the wiring by overlapping end portions extending to both sides, and is fastened by a surface fastener provided in the overlapping portion. The attachment for optical equipment according to claim 7. The adjustment mechanism includes a rack member that extends in the front-rear direction and is fixed to the optical device, a latch member that is selectively engageable with any rack tooth of the rack member, and the latch member The mounting attachment for an optical device according to any one of claims 1 to 8, further comprising biasing means for biasing in a direction in which the rack teeth are engaged. The adjustment mechanism is rotatably fixed to the optical device, is inserted into a second slit in the vertical direction formed in the left / right adjustment mechanism, and is configured to be movable along the second slit. 2 eccentric shafts and a second operating lever connected to the second eccentric shaft, and rotating the second eccentric shaft by rotating the second operating lever, The position of the second eccentric shaft with respect to the second slit is fixed by friction engagement between the second eccentric shaft and the second slit. The attachment for optical instruments in any one of 1 thru | or 9 . The adjusting mechanism according to any one of claims 1 to 10, characterized in that said upper and lower shaft provided between the optics are configured to frictionally supported so its axis of rotation Mounting attachment for optical equipment. The adjusting mechanism according to the left and right shaft provided between said optical device, in any one of claims 1 to 11, characterized in that are configured by friction supported so its axis of rotation Mounting attachment for optical equipment.

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