WO2014050471A1

WO2014050471A1 - Loupe with stand

Info

Publication number: WO2014050471A1
Application number: PCT/JP2013/073825
Authority: WO
Inventors: 真之介川合; 雅則安藤; 高崎　充弘
Original assignee: 株式会社エンジニア
Priority date: 2012-09-25
Filing date: 2013-09-04
Publication date: 2014-04-03
Also published as: JP2014066778A; TW201418771A; JP5319004B1

Abstract

A loupe with a stand is provided such that a loupe main body is supported in a state that is always stable, such that the attitude of the loupe main body is assuredly supported during long-term use, and such that work can always be carried out in a hands-free state. A loupe is provided with a loupe main body (1) and a stand (2). The stand (2) is constituted of a stand base (10), a first arm (11), a second arm (12), first through third joint structures (H1, H2, H3), and the like. The joint structures (H1, H2, H3) are constituted such that linked members are rotatable relatively centered on first through third linking shafts (45, 58, 77). The stand base (10) has a magnet (13) that adheres to magnetic metal materials affixed therein. Position holding bodies (47, 61, 79) that hold the stand base (10), first arm (11), second arm (12), and loupe main body (1) in any displacement position are provided in the first through third joint structures (H1, H2, H3).

Description

Magnifier with stand

The present invention relates to a loupe provided with a loupe body and a stand that supports the loupe body.

This type of loupe is known from Patent Document 1, for example. There, a loupe is constituted by a loupe body, a handle for supporting the loupe body, a pair of left and right leg plates connected to the handle, and a base plate. One end of the handle is connected to the loupe body via a connecting shaft, and the other end of the handle is connected to one end of the pair of leg plates via a connecting shaft. In addition, the other end of the pair of leg plates is connected to a C-shaped base plate via a connecting shaft, and the stand composed of the handle, the leg plate, and the base plate has a total of three joint structures. It is. According to the loupe with a stand, the base plate is placed on a flat surface, the handle and the leg plate are bent in a square shape, and the loupe body is used in a state of being placed substantially parallel to the flat surface. Can do. In addition, the handle can be used in a handheld state in which the handle is folded between a pair of leg plates, the base plate is further folded and fitted to the periphery of the lens frame, and the handle and the leg plate are held with one hand. A similar loupe is also disclosed in Patent Document 2, however, since the leg plate is formed of a solid plate material similar to the handle, the folded leg plate and the handle overlap on the front and back. Different from loupe.

In the loupe of the present invention, a magnet is embedded in a stand base connected to one end of the support arm, and the entire loupe is fixed to the surface of the magnetic metal material by the magnet's adsorption action. It is known. There, a magnifying glass is composed of a support case, a flexible tube having one end fixed to the support case, a loupe body fixed to the protruding end of the flexible tube via a bracket, and a magnet embedded and fixed in the support case. ing.

Registered Utility Model No. 3088210 (paragraph numbers 0008 to 0010, FIG. 4) Registered Utility Model No. 3084400 (paragraph numbers 0005 to 0007, FIG. 6) Japanese Utility Model Publication No. 63-41115 (page 5, line 10 to page 6, line 11, FIG. 2)

The loupe with a stand of

Patent Documents

1 and 2 has a joint structure with three stands, so the posture of the loupe body can be changed variously. However, since the stand mounting posture is maintained by the weight of the entire loupe, depending on the stand posture, the loupe body may not be supported in a stable state. For example, when the mounting surface is inclined, the loupe slides toward the lower end of the mounting surface. Or when there is an unevenness | corrugation in a mounting surface and there is no flat surface which supports only the whole baseplate, it will be supported by the attitude | position which the loupe tilted. In addition, even if the placement surface is generally horizontal and flat, the tilting moment acts on the loupe when the center of gravity of the leg plate, handle, and loupe body is outside the outer edge of the base plate. Will fall. In particular, when the lens is made of glass and heavy, a large tilting moment tends to act, and there is a limit to the range of postures that can support the loupe body in a stable state. For example, when the leg plate, the handle, and the loupe main body are extended in a direction away from the base plate, the posture cannot be maintained and falls on the placement surface.

In addition, the loupe of Patent Document 1 can accommodate the handle between a pair of leg plates in the folded state, but the loupe main body and the base plate protrude from one end of the handle and the leg plate. Is large and easily bulky. Furthermore, each joint structure provided between the handle and the loupe main body, between the handle and the leg plate, and between the leg plate and the base plate simply connects adjacent connecting portions with a connecting shaft. Therefore, if the connecting shaft or connecting part is worn even slightly, it is difficult to maintain the displacement posture of the loupe main body, the handle, and the leg plate, and there is an advantage that the loupe main body is supported by a stand and work can be performed in a hands-free state. It will be damaged.

In that regard, the magnifying glass of Patent Document 3 can firmly fix the support case to the surface of the magnetic metal material by the magnet action, so that the loupe body can be supported in a stable state and its posture can be freely changed. Further, even when the usage period is long, the posture maintaining function of the flexible tube is not impaired. However, since the magnifying glass is supported by the flexible tube, it is difficult to reduce the size of the magnifying glass. For example, as shown in FIG. 15, a relatively small loupe is used that is used while being magnetically attracted to a manual tool. It becomes difficult. In addition, since there is a limit to the bending radius of the flexible tube, it is difficult to attract the magnet to the vicinity of the visual target of the magnifying glass, which is inconvenient.

The object of the present invention is to support the loupe body in a stable state regardless of the position of the loupe body and the stand, and to maintain the loupe body and the stand posture even during long-term use, so that it is always free of hands. The object is to provide a magnifying glass with a stand that can work in a state.
The purpose of the present invention is with a stand that can be used in a state where it is magnetically attracted to a magnetic metal material such as a manual tool or a steel plate wall, and can be used in a state where a magnet is adsorbed in the vicinity of the visual target of the loupe. To provide a loupe.
An object of the present invention is to provide a magnifying glass with a stand that can be downsized as a whole and that is compact in the folding position of the entire loupe and is suitable for carrying or storing.

The loupe with a stand according to the present invention includes a loupe body 1 and a stand 2 that supports the loupe body 1. As shown in FIG. 1, the stand 2 includes a stand base 10, a first arm 11, a second arm 12, a first joint structure H 1 that connects the stand base 10 and the first arm 11, and a first arm 11. And a second joint structure H2 for connecting the second arm 12 and the loupe main body 1 to each other. Each of the first to third joint structures H1, H2, and H3 is configured such that the connection partners can relatively rotate about the first, second, and

third connection shafts

45, 58, and 77. A magnet 13 that supports the loupe body 1 and the stand 2 by being attracted to a magnetic metal material is fixed to the stand base 10. A position holding body 47 for holding the members of the stand base 10, the first arm 11, the second arm 12, and the loupe body 1 at arbitrary displacement positions on the first to third joint structures H1, H2, and H3.・ 61 ・ 79 are provided. The stand 10 includes a magnet 13, a magnet holder 14 that fixes and holds the magnet 13, and an L-shaped base connecting arm 15 that is extended from one side around the magnet holder 14. The first connecting shaft 45 is connected to the first connecting portion 21 of the first arm 11. The loupe body 1 includes a lens 3, a lens holder 4 that supports the lens 3, and an L-shaped lens connecting arm 5 that is led out from one side around the lens holder 4. The third connecting shaft 77 is connected to the third connecting portion 35 of the second arm 12. In the state where the first arm 11 and the second arm 12 are folded in parallel, by rotating the stand base 10 around the first connecting shaft 45, the stand base 10 is moved to the first arm 11 as shown in FIG. The loupe main body 1 can be folded around one of the upper and lower sides of the

arms

11 and 12 and the stand base 10 by rotating the loupe main body 1 around the third connecting shaft 77. Can be stored. In a state where the loupe body 1 is folded and housed on either one of the upper and lower sides of the

arms

11 and 12 and the stand base 10, the loupe body 1 is housed within the longitudinal length range occupied by both

arms

11 and 12. To. Further, the center of the lens 3 is positioned in the vicinity of the loupe center axis P.

As shown in FIGS. 7 and 10, the position holding body is composed of O-

rings

47, 61, and 79 mounted around the first, second, and third connecting

shafts

45, 58, and 77. The members of the stand 10, the first arm 11, the second arm 12, and the loupe body 1 are held at arbitrary displacement positions by the frictional resistance of the O-

rings

47, 61, and 79 in the circumferential direction.

The loupe body 1 includes a lens 3 and a lens holder 4 that supports the lens 3. As shown in FIG. 11, along the inner edge of the lens holder 4, a partial arc-shaped front rib 91 that receives the peripheral surface of the lens 3 and a partial arc-shaped back rib 92 that receives the peripheral back surface of the lens 3. Alternately provided. A lens mounting opening 93 reaching the inner edge of the lens holder 4 is formed around the lens holder 4. The lens 3 inserted through the lens mounting opening 93 is fitted between the front rib 91 and the back rib 92 so that the lens 3 is supported by one lens holder 4.

As shown in FIG. 2, a first connecting portion 21 and a second connecting portion 22 are provided at one end and the other end of the first arm 11. A second connecting portion 34 and a third connecting portion 35 are provided at one end and the other end of the second arm 12. The first joint structure H <b> 1 includes a stand base 10, a first connecting portion 21 disposed on one side of the stand base 10, and a first connecting shaft 45 that connects both the

units

10 and 21. The second joint structure H2 connects the second connecting portion 22 of the first arm 11, the second connecting portion 34 of the second arm 12 disposed on one side of the second connecting portion 22, and the two connecting

portions

22 and 34. The second connecting shaft 58 is provided. The third joint structure H3 includes a third connecting portion 35 of the second arm 12, a loupe body 1 arranged on one side of the third connecting portion 35, and a third connecting shaft 77 that connects both the

members

1 and 35. It has. The first arm 11, the second arm 12, and the loupe body 1 are arranged adjacent to each other in the order of description on one side of the stand base 10. The stand 10 and the first arm 11, and the first arm 11 and the second arm 12 are coupled to each other so as to be able to rotate 360 degrees.

A knob portion 6 is formed around the lens holder 4 so as to displace the loupe body 1.

The first, second, and third connecting

shafts

45, 58, and 77 are retaining

members

46, 59, 60, and 78 fixed to the shaft ends of the connecting

shafts

45, 58, and 77, respectively. 2. Fix to the third connecting

portions

21, 22, 34, and 35 so that they cannot be removed. The retaining

members

46, 59, 60, and 78 are integrally formed with

leg pieces

53, 73, and 86 that can be elastically deformed and operating heads 52, 72, and 85 that define the insertion limit of the

leg pieces

53, 73, and 86. I have. As shown in FIGS. 7 and 10, the

leg pieces

53, 73 are inserted into the engaging

grooves

49, 66, 67, 81 provided at the shaft ends of the first, second, and third connecting

shafts

45, 58, 77, respectively. -86 is press-fitted and the connecting

shafts

45, 58, 77 are secured.

The distance between the centers of the first connecting shaft 45 and the second connecting shaft 58 and the distance between the centers of the second connecting shaft 58 and the third connecting shaft 77 are set to be the same. Insertion holes 26 and 43 having the same diameter for receiving the operation heads 52 and 85 of the retaining

bodies

46 and 78 are formed in the first connection part 21 and the third connection part 35, respectively. The outer end of the operation head 52 of the one retaining member 46 protrudes outward from the insertion hole 26 to form an engagement shaft portion 55. In a state where the first arm 11 and the second arm 12 are folded in parallel, the engagement shaft portion 55 is engaged with the insertion hole 38 of the adjacent retaining member 78 as shown in FIG. -Hold 12 in a folded position.

The strap hole 30 is formed in the second connecting portion 22 of either the first arm 11 or the second arm 12. In a state in which the

arms

11 and 12 are folded in parallel, both end openings of the strap hole 30 are opened on the peripheral surface of the second connecting portion 22 facing the free space.

In the present invention, the stand 2 that supports the loupe main body 1 includes a stand base 10, a first arm 11, a second arm 12, and first to third joint structures H1 and H2 that connect these members.・ It consisted of H3 etc. Further, the joint structures H1, H2, and H3 are configured such that the connection partners can rotate relative to each other about the first, second, and

third connection shafts

45, 58, and 77, and the joint structures H1, H2, and the like. The

position holding members

47, 61, and 79 provided on H3 can hold each member at an arbitrary displacement position. Furthermore, the magnet 13 is fixed to the stand base 10 so that the loupe body 1 and the stand 2 can be firmly supported in a stable state by the magnetic attraction action of the magnet 13.

Therefore, according to the loupe with a stand according to the present invention, the loupe body 1 and the stand 2 can be always supported in a stable state by the stand base 10 regardless of the postures of the loupe body 1 and the stand 2. Further, even when the mounting surface S of the stand 10 is inclined or when the area of the mounting surface S is small, the loupe main body 1 and the stand 2 that have been displaced in an arbitrary posture are placed on the mounting surface S. It can be reliably supported by the attracting force of the attracted magnet 13. In addition, even with long-term use, the position of the first arm 11, the second arm 12, and the loupe body 1 can be securely held by the

position holders

47, 61, and 79, so there is a stand that can always work in a hands-free state. Can provide a loupe.

Further, in the loupe with a stand according to the present invention, since the connection partners are relatively rotated around the

respective connection shafts

45, 58 and 77 to change the posture of the loupe body 1, the loupe body is supported by a flexible pipe. Compared with a conventional loupe, the degree of freedom in changing the posture of the loupe body 1 can be greatly increased. Therefore, the loupe with a stand can be used in a state where the positional relationship between the loupe body 1 and the stand base 10 is freely set, for example, the magnet 13 is attracted to the vicinity of the visual recognition target of the loupe body 1. Accordingly, the magnifying glass 1 is magnetically attracted to a manual tool, a wall or a base plate, or placed on a flat wooden base plate, compared to a conventional loupe having a three-joint structure stand. In addition, the stand 2 can be transformed into more various and free usage forms, and the usability of the loupe with the stand can be improved accordingly.

If the members of the stand base 10, the first arm 11, the second arm 12, and the loupe main body 1 are held in position by the frictional resistance in the circumferential direction of the O-

rings

47, 61, and 79, the ring holes 25, 38, and 42 A predetermined friction force can always be applied to the connecting

shafts

45, 58, and 77 in a stable state. Therefore, the changed posture can be accurately held while performing the posture changing operation of each member easily. Further, as compared with the case of using another member as the position holding element, it is possible to save the labor of assembling and the labor of adjusting the frictional force after the assembling. For example, when using a position holding element that elastically deforms in the direction of the central axis of each of the connecting

shafts

45, 58, and 77, it is necessary to adjust the frictional force after assembling the position holding element between the opposing surfaces of the connecting partner. However, there is no need for such trouble, and it is only necessary to attach the

rings

47, 61, and 79 to the connecting

shafts

45, 58, and 77.

When the front rib 91 and the back rib 92 are alternately provided along the inner edge of the lens holder 4, and the periphery of the lens 3 inserted from the lens mounting opening 93 is fitted between the front rib 91 and the back rib 92, the lens 3 can be fixedly supported by only one lens holder 4 having a simple structure. Therefore, the structure of the lens holder 4 can be simplified, the cost required for manufacturing the lens holder 4 can be reduced, and the appearance of the loupe body 1 can be simplified. Further, since the periphery of the lens 3 is sandwiched between the front rib 91 and the back rib 92 formed integrally with the lens holder 4, the lens 3 can be fixed more firmly. In the conventional lens holder, the front and back of the lens are sandwiched between a pair of holder frames that are divided into two in the thickness direction. Therefore, extra parts are required, and a structure for fixing the pair of holder frames is also necessary. It was.

The first arm 11, the second arm 12, and the loupe main body 1 are arranged adjacent to each other on the one side of the stand base 10 in the order of description, and these members are connected by connecting

shafts

45, 58, and 77, and If the 1 arm 11 and the 1st arm 11 and the 2nd arm 12 are respectively rotatable by 360 degrees, the degree of freedom in changing the posture of the stand 2 and the loupe body 1 can be further improved. Therefore, the operability of the loupe with the stand can be further improved by variously changing the postures of the loupe body 1 and the stand 2 according to the work contents when using the loupe and the work environment. The stand base 10, the first arm 11, the second arm 12, and the loupe body 1 and the first to third joint structures H1, H2, and H3 connecting these members constitute a loupe with a stand. Therefore, the loupe can be reduced in size and made compact as necessary while maintaining the degree of freedom in changing the posture of the stand 2 and the loupe body 1. The compact loupe with a small stand is suitable for use in a state where the magnet 13 is attracted to a part of a manual tool, for example.

A loupe with a stand having an L-shaped base connecting arm 15 on one side of the magnet holder 14 and an L-shaped lens connecting arm 5 on one side of the lens holder 4, the stand base 10 is connected to the first connecting shaft. By rotating around 45, the first arm 11 can be folded and stored outside. Further, in the state where the first arm 11 and the second arm 12 are folded in parallel, the loupe body 1 is rotated around the third connecting shaft 77, whereby the upper surfaces of both the

arms

11 and 12 and the stand base 10, Or it can be folded and stored in the lower surface side. Therefore, compared with the conventional magnifying glass with a stand having a three-joint structure, the overall size of the loupe can be reduced by the amount that the loupe body 1 is folded toward the stand 2, and the folding posture can be made compact. The loupe with a stand folded compactly can be easily carried, for example, in a state of being stored in a pocket of a work clothes, and the storage space required when storing the loupe with a stand can be reduced.

In a state where the loupe body 1 is folded and stored on the stand 2 side, if the loupe body 1 is accommodated within the longitudinal length range occupied by the

arms

11 and 12, the overall size of the loupe is reduced and folded. The posture can be made more compact. Further, by positioning the center of the lens 3 in the vicinity of the loupe center axis P, the loupe body 1 is prevented from projecting in a state of being biased to one side of the

arms

11 and 12, so that the folding position of the entire loupe is maintained. The left and right external dimensions of the entire loupe can be reduced.

If the knob portion 6 is formed so as to protrude around the lens holder 4, it can be emphasized that the position to be operated is the knob portion 6 when the loupe body 1 is displaced. Further, by displacing the loupe main body 1 with the knob portion 6 gripped by the fingertip, it is possible to well prevent foreign matter and dirt adhering to the fingertip from accidentally adhering to the surface of the lens 3.

The first, second, and third connecting shafts are retaining

members

46, 59, 60, and 78 that are integrally provided with elastically

deformable leg pieces

53, 73, and 86 and operating heads 52, 72, and 85, respectively. If 45, 58, and 77 are secured, a series of assembly operations in each joint structure H1, H2, and H3 can be easily performed with less effort. At the time of assembly, the

leg pieces

53, 73, and 86 are simply press-fitted to the engaging

grooves

49, 66, 67, and 81 of the first, second, and third connecting

shafts

45, 58, and 77, respectively. This is because the assembly can be performed quickly and easily without using a jig or a tool.

In a state where the first arm 11 and the second arm 12 are folded in parallel, when the engaging shaft portion 55 provided in one retaining member 46 is engaged with the insertion hole 43 of the adjacent retaining member 78, both arms 11・ 12 can be held in a folded position. Therefore, when the loupe with a stand is used in a hand-held state or when the entire loupe is folded and stored, the

arms

11 and 12 are restricted from swinging separately, and the user has a clear intention to use both

arms

11 and 12. As long as 12 is not rocked separately, the hand-held state and the folded storage state can be reliably maintained.

When the opening at both ends of the strap hole 30 formed in the second connecting portion 22 is opened to the peripheral surface of the second connecting portion 22 facing the free space, the strap can be easily assembled to the strap hole 30. Further, since the strap is attached to the second connecting portion 22 of either the first arm 11 or the second arm 12, when using the loupe with a stand in a hand-held state or folding the entire loupe, In addition, the strap can be well prevented from getting in the way.

It is a side view of the magnifier with a stand concerning the present invention. It is an exploded plan view of a loupe with a stand. It is a top view in the state where the whole loupe with a stand was extended. It is a side view of the state which folded and stored the magnifier with a stand. It is a top view of the state which folded and stored the magnifier with a stand. FIG. 5 is a sectional view taken along line AA in FIG. 4. FIG. 5 is a sectional view taken along line BB in FIG. It is CC sectional view taken on the line in FIG. FIG. 8 is a sectional view taken along line DD in FIG. FIG. 5 is a sectional view taken along line EE in FIG. 4. It is a bottom view of the loupe main part which shows a lens mounting structure. FIG. 12 is a sectional view taken along line FF in FIG. 11. It is a perspective view which shows the usage type of a magnifying glass with a stand. It is a perspective view which shows another usage pattern of the magnifier with a stand. It is a top view which shows another usage pattern of a magnifier with a stand. It is the top view of the state which extended the whole loupe with a stand concerning another example, and a left side view. It is a left view of the state which folded and stored the magnifier with a stand of FIG. It is a top view of the state which folded and stored the magnifier with a stand of FIG. It is an external appearance 6 surface view of the magnifier with a stand of FIG. FIG. 19 is a six-side view of the appearance of the magnifying glass with a stand shown in FIGS. It is a partially broken top view of the clip with a stand which connected the clip to the stand.

(Example) FIGS. 1-15 shows the Example of the magnifier with a stand which concerns on this invention. In the present invention, front and rear, left and right, and up and down shall follow the cross arrows shown in FIGS. 1, 2, 3 and 13 and the front and rear, left and right, up and down indications shown in the vicinity of each arrow. The stand base 10 is used as a position reference in each of the left and right and upper and lower azimuth directions.

1, a loupe with a stand is composed of a loupe body 1 and a stand 2 that supports the loupe body 1. The loupe body 1 includes a circular plastic lens (convex lens) 3 and a lens holder 4 that supports the lens 3. The lens holder 4 is formed of an endless annular plastic molded product. In FIG. 2, an L-shaped lens connecting arm 5 is extended forward in the left front part of the peripheral surface of the lens holder 4, and is on the same side as the lens connecting arm 5. A knob portion 6 for displacing the loupe main body 1 is formed in a petal shape at the rear portion of the peripheral surface. The lens connecting arm 5 is integrally provided with a third connecting shaft 77, which will be described later, protruding sideways.

The stand 2 includes a stand base 10, a first arm 11, a second arm 12, a first joint structure H1 that connects the stand base 10 and the first arm 11, a first arm 11 and a second arm 12. The second joint structure H2 for connecting the second arm 12 and the third joint structure H3 for connecting the second arm 12 and the loupe main body 1 and the like.

2, the stand base 10 includes a columnar magnet 13 that supports a loupe main body 1 and the stand 2 by being attracted to a magnetic metal material such as a steel plate, and a magnet holder 14 that fixes and holds the magnet 13. The magnet holder 14 is made of a plastic molded product, and an L-shaped pedestal connecting arm 15 is continuously projected forward to the right of the front part of the peripheral surface. The base connecting arm 15 is integrally provided with a first connecting shaft 45, which will be described later, projecting sideways. The magnet 13 is preferably made of a neodymium magnet, and is entirely attached to and attached to a mounting hole 16 provided in the magnet holder 14. In this fixed state, one flat magnetic pole surface is outside the opening surface of the mounting hole 16. It protrudes slightly. The attracting force of the magnet 13 can maintain the state in which the magnet 13 is attracted to the magnetic metal material against the tilting moment acting on the stand base 10 in a state where the loupe body 1 and the stand 2 are displaced to an arbitrary posture. As long as it is strong, a magnet 13 other than a neodymium magnet may be used.

In FIG. 2, the first arm 11 includes a rod-shaped arm portion 20 that is long in the front-rear direction, a boss-shaped first connecting portion 21 provided at the front end of the arm portion 20, and a boss-shaped first portion provided at the rear end of the arm portion 20. It consists of a plastic molded product integrally provided with two connecting portions 22. As shown in FIG. 6, the arm part 20 is formed in a U-shaped cross section, and reinforcing ribs 23 are formed at regular intervals between the U-shaped walls. A side end of the first connecting portion 21 is provided so as to protrude rightward (outward) from the arm portion 20, and a connecting hole 24 that supports the first connecting shaft 45 is formed in the center of the inside. A ring hole 25 is formed at the right end of the connecting hole 24, and an insertion hole 26 is formed at the left end. An O-ring (position holding body) 47 described later is inserted into the ring hole 25, and a retaining body 46 described later is inserted into the insertion hole 26. The diameter of the insertion hole 26 is slightly larger than the diameter of the connection hole 24, and the diameter of the ring hole 25 is set slightly larger than the diameter of the insertion hole 26.

Similar to the first connection portion 21, the second connection portion 22 of the first arm 11 is provided in a state of projecting to the right side (outward side) from the arm portion 20, and a second connection shaft described later is provided therein. A fixing hole 27 having an oval cross section for fixing 58 is formed, and an insertion hole 28 is formed at the right end of the fixing hole 27. A retaining member 60 described later is inserted into the insertion hole 28. The diameter of the insertion hole 28 is set slightly larger than the diameter of the arc portion of the fixing hole 27. A strap hole 30 is formed in the second connecting portion 22 of the first arm 11. As shown in FIGS. 14 and 9, the strap hole 30 is configured so that the opening of both ends of the strap hole 30 faces the free space when the first arm 11 and the second arm 12 are folded in parallel. It is formed so as to open on the peripheral surface.

The second arm 12 includes a rod-shaped arm portion 33 that is long in the front-rear direction, a boss-shaped second connecting portion 34 provided at the rear end of the arm portion 33, and a boss-shaped third connecting portion provided at the front end of the arm portion 33. 35, and a plastic molded product integrally provided with 35. The arm portion 33 is formed in a U-shaped cross section, and reinforcing ribs 36 are formed at regular intervals between the U-shaped walls (see FIGS. 1 and 6). The second connecting portion 34 is provided in a state of projecting to the left side (outward side) from the arm portion 33, and a connecting hole 37 for supporting a second connecting shaft 58 described later is formed in the second connecting portion 34. A ring hole 38 for the O-ring 61 is formed at the right end of the hole 37, and an insertion hole 39 for the retaining member 59 is formed at the left end. The diameter of the insertion hole 39 is slightly larger than the diameter of the connection hole 37, and the diameter of the ring hole 38 is set slightly larger than the diameter of the insertion hole 39.

Similar to the second connection portion 34, the third connection portion 35 is provided in a state of protruding to the left side (outer side) from the arm portion 33, and a third connection shaft 77 described later is provided at the center of the third connection portion 35. A connecting hole 41 that pivots is formed, a ring hole 42 for the O-ring 79 is formed at the left end of the connecting hole 41, and an insertion hole 43 for the retaining member 78 is formed at the right end. The diameter of the insertion hole 43 is slightly larger than the diameter of the connection hole 41, and the diameter of the ring hole 42 is set slightly larger than the diameter of the insertion hole 43. In addition, the insertion hole 43 in the 3rd connection part 35 is adjacent to the 1st connection part 21 of the 1st arm 11, as shown in FIG. 10, The insertion hole 26 provided in the 1st connection part 21, The diameter of the insertion hole 43 provided in the third connecting portion 35 is set to be the same. The distance between the centers of the first connecting shaft 45 and the second connecting shaft 58 and the distance between the centers of the second connecting shaft 58 and the third connecting shaft 77 are set to be the same. Therefore, in a state where the first arm 11 and the second arm 12 are folded in parallel, the insertion hole 26 of the first connection portion 21 and the insertion hole 43 of the third connection portion 35 are interposed through a slight gap. Facing left and right.

In FIG. 3, the first joint structure H <b> 1 connects the base connecting arm 15 of the stand base 10, the first connecting portion 21 of the first arm 11 disposed on one side of the base connecting arm 15, and the both 15. A first connecting shaft 45 having a round shaft shape, a retaining body 46 fixed to the shaft end of the first connecting shaft 45, an O-ring (position holding body) 47 attached around the first connecting shaft 45, and the like. As described above, the first connecting shaft 45 is formed integrally with the base connecting arm 15, and a ring groove 48 for mounting the O-ring 47 is formed at the protruding base end thereof. Further, an engaging groove 49 for engaging the retaining member 46 is formed at the shaft end of the first connecting shaft 45, and a step portion 50 (see FIG. 10) is provided at the inner end thereof. The O-ring 47 is a commercially available product, and O-

rings

61 and 79 described below are also commercially available products.

The retaining body 46 of the first connecting shaft 45 is made of a plastic molded product integrally provided with a round shaft-shaped operating head 52 and a pair of elastically deformable leg pieces 53. An engaging claw 54 that engages with the stepped portion 50 of the previous engaging groove 49 is integrally provided at the tip of the leg piece 53. As shown in FIG. 10, in a state where the leg piece 53 is engaged with the engagement groove 49, the operation head 52 is received by the insertion hole 26 to define the insertion limit of the leg piece 53. The length of the operation head 52 in the axial direction is set to be larger than the length of the insertion hole 26 in the hole center axis direction. Therefore, in a state where the leg piece 53 is engaged with the engagement groove 49, The outer end of the projection protrudes outward from the insertion hole 26. The projecting edge periphery of this projecting portion is rounded and functions as the engagement shaft portion 55. Specifically, in a state where the first arm 11 and the second arm 12 are folded in parallel, the engagement shaft portion 55 engages with the insertion hole 43 of the adjacent retaining member 78, and the

arms

11 and 12 are folded. Hold on.

The second joint structure H2 connects the second connecting portion 22 of the first arm 11, the second connecting portion 34 of the second arm 12 disposed on the left side of the second connecting portion 22, and the two connecting

portions

22 and 34. The second connecting shaft 58, the retaining

members

59 and 60 fixed to the left and right shaft ends of the second connecting shaft 58, the O-ring (position holding body) 61 mounted around the second connecting shaft 58, and the like. 2 and 7, the second connecting shaft 58 includes a fixed shaft portion 62 on the right half side, a round shaft-shaped support shaft portion 63 on the left half side, and a flange provided between the

shaft portions

62 and 63. It consists of a plastic molded product integrally provided with the portion 64. A ring groove 65 for mounting the O-ring 61 is formed between the support shaft portion 63 and the flange portion 64, and at the shaft ends of the fixed shaft portion 62 and the support shaft portion 63, a retaining member 59. Engaging

grooves

66 and 67 for engaging 60 are formed, and stepped

portions

68 and 69 are provided in the inner and rear portions of the grooves.

The retaining

members

59 and 60 of the second connecting shaft 58 are each a plastic molded product having the same structure, which is integrally provided with an operating head 72 whose protruding ends are rounded into a partial spherical shape and a pair of elastically deformable leg pieces 73. Consists of. An engaging claw 74 that engages with the

step portions

68 and 69 of the previous

engaging grooves

66 and 67 is integrally provided at the tip of the leg piece 73. The fixed shaft portion 62 has an oval cross section, and is inserted into and engaged with a fixed hole 27 provided in the second connecting portion 34 of the first arm 11. Further, one retaining member 60 is fixed to the fixed shaft portion. The second connecting shaft 58 is integrated with the first arm 11 so as not to be relatively rotatable by press-fitting and engaging with the engaging groove 66 on the 62 side. The operating head 72 of the retaining

members

59, 60 is received by the insertion holes 28, 39 in a state where the respective leg pieces 73 are engaged with the engaging

grooves

66, 67, and the insertion limit of the leg pieces 73 is limited. It stipulates.

The third joint structure H3 includes a third connecting portion 35 of the second arm 12, a lens connecting arm 5 of the loupe main body 1 disposed on the left side of the third connecting portion 35 of the second arm 12, and both of them. A third connecting shaft 77 having a round shaft shape for connecting the shaft, a retaining member 78 fixed to the shaft end of the third connecting shaft 77, an O-ring (position holding member) 79 mounted around the third connecting shaft 77, and the like. Constitute. As described above, the third connecting shaft 77 is formed integrally with the lens connecting arm 5, and a ring groove 80 for mounting the O-ring 79 is formed on the protruding base end thereof. Further, an engaging groove 81 for engaging the retaining member 78 is formed at the shaft end of the third connecting shaft 77, and a stepped portion 82 is provided in the inside thereof.

The retaining body 78 of the third connecting shaft 77 is a plastic molded product integrally including a disk-shaped operating head 85 and a pair of elastically deformable leg pieces 86. An engaging claw 87 that engages with the stepped portion 82 of the previous engaging groove 81 is integrally provided at the tip of the leg piece 86. As shown in FIG. 10, in a state where the leg piece 86 is engaged with the engagement groove 81, the operation head 85 is received by the insertion hole 43 to define the insertion limit of the leg piece 86. The axial length of the operation head 85 is set to be smaller than the length of the insertion hole 43 in the hole center axis direction. Therefore, in the state where the leg piece 86 is engaged with the engagement groove 81, the operation head 85. Is located inside the insertion hole 43. In a state where the first arm 11 and the second arm 12 are folded in parallel, the engagement shaft portion 55 is engaged with the hole portion between the previous operation head 85 and the opening edge of the insertion hole 43, The

arms

11 and 12 are held in a folded posture (see FIG. 10).

As described above, the stand base 10 and the first arm 11 are centered on the first connecting shaft 45 by connecting the stand base 10 and the first connecting portion 21 of the first arm 11 with the first joint structure H1. Thus, it can be rotated 360 degrees. Further, by connecting the second connecting portion 22 of the first arm 11 and the second connecting portion 34 of the second arm 12 with the second joint structure H2, the first arm 11 and the second arm 12 are connected to each other. It can be rotated 360 degrees relative to the connecting shaft 58. Further, by connecting the third connecting portion 35 of the second arm 12 and the loupe main body 1 with the third joint structure H3, the second arm 12 and the loupe main body 1 are arranged around the third connecting shaft 77 as a lens. The dominant arc range in which the holder 4 contacts the upper surface or the lower surface of the arm portion 33 of the second arm 12 can be relatively rotated. The stand base 10, the first arm 11, the second arm 12, and the loupe body 1 connected by the first to third joint structures H 1 to H 3 are connected in the state adjacent to the left side of the stand base 10 in the order of description. It is.

As described above, the loupe body 1 includes the lens 3 and the lens holder 4 that supports the lens 3. In order to support the lens 3 with one lens holder 4, the lens holder 4 has a lens. A mounting structure is provided. As shown in FIG. 11, in the lens mounting structure, three front ribs 91 and three back ribs 92 are alternately provided along the inner edge of the lens holder 4, and a lens mounting opening is provided at one position on the lower surface side around the lens holder 4. 93 is provided. The front rib 91 protrudes in a partial arc shape on the inner edge of the lens holder 4 and receives the peripheral surface (upper surface) of the lens 3. Similarly, the back rib 92 protrudes from the inner edge of the lens holder 4 in a partial arc shape and receives the peripheral back surface (lower surface) of the lens 3. The lens mounting opening 93 is formed in an oblique cutout in a state adjacent to the protruding base end of the lens connecting arm 5 and reaches the inner edge of the lens holder 4. By inserting the periphery of the lens 3 inserted from the lens mounting opening 93 between the front rib 91 and the back rib 92, the lens 3 is sandwiched between the front rib 91 and the back rib 92 in the vertical direction. To be fixed to the lens holder 4.

In the conventional lens holder, the front and back of the lens are sandwiched between a pair of holder frames that are divided into two in the thickness direction, so the number of parts increases by the amount of the structure that fixes the holder frame and the pair of holder frames. Inevitable. However, if the lens 3 is supported and fixed by the single lens holder 4 as described above, the structure of the loupe main body 1 can be simplified and the cost required for its manufacture can be reduced. In addition, since the peripheral edge of the lens 3 is sandwiched between the front rib 91 and the back rib 92 provided integrally with the lens holder 4, the lens 3 can be firmly fixed and supported.

The loupe body 1 and the stand 2 can be assembled, for example, by the following procedure. First, the lens 3 is assembled to the lens holder 4 as described above, and the O-

rings

47, 61, and 79 are assembled to the first, second, and third connecting

shafts

45, 58, and 77, respectively. deep. The first connecting shaft 45 is inserted into the connecting hole 24 of the first connecting portion 21, and the retaining body 46 is inserted into and engaged with the shaft end to connect the stand base 10 to the first arm 11. Next, the fixed shaft portion 62 of the second connecting shaft 58 is inserted into the fixing hole 27 of the second connecting portion 22 of the first arm 11, and the retaining member 60 is inserted into the shaft end to engage with the second connecting portion. The shaft 58 is fixed to the first arm 11. Further, the support shaft portion 63 of the second connection shaft 58 is inserted into the connection hole 37 of the second connection portion 34 of the second arm 12, and the retaining member 59 is inserted into the shaft end to engage with the second arm 12. Are connected to the first arm 11 via the second connecting shaft 58. Finally, the third connecting shaft 77 provided on the lens holder 4 is inserted into the connecting hole 41 of the third connecting portion 35, and the retaining body 78 is inserted into the shaft end to engage with the second arm 1. 12 is connected. The above assembling procedure is merely an example of the procedure, and the loupe body 1 and the stand 2 can be assembled from any place by any procedure.

As described above, when assembling the stand 10, the first arm 11, the second arm 12, and the loupe body 1, the members are connected by the connecting

shafts

45, 58, and 77, and then the connecting shafts are connected. It is only necessary to press-fit and engage the retaining

members

46, 59, 60, and 78 to the shaft ends of 45, 58, and 77, and a series of assembly operations can be quickly performed with less effort. Further, the retaining

members

46, 59, 60, 78 engaged with the shaft ends of the connecting

shafts

45, 58, 77 are elastic by the

leg pieces

53, 73, 86 themselves, so that the respective

engaging grooves

49, 66, 67 are engaged. -Since the engagement state with 81 is kept, a part of each component does not drop out after the assembly is completed. It cannot be easily disassembled.

Next, some usage forms of a loupe with a stand will be exemplified.
(Usage form 1) This use form shows a case where the mounting surface S of the loupe with the stand is a magnetic metal material, and the magnet 13 of the stand base 10 is attracted to the mounting surface S as shown in FIG. Then, the first arm 11 and the second arm 12 are bent in a square shape behind the stand base 10. Further, the loupe body 1 is rotated around the third connecting shaft 77 so that the lens surface of the lens 3 is substantially parallel to the placement surface S. In this state, the magnet 13 is attracted to the mounting surface S to support the loupe body 1 and the stand 2, so that the loupe body 1 is always supported in a stable state regardless of the orientation of the loupe body 1 and the stand 2. it can. Even when the mounting surface S is inclined, the loupe body 1 and the stand 2 can be supported in a stable state. In addition, O-

rings

47, 61, and 79 are provided on the connecting

shafts

45, 58, and 77, and the stand base 10, the first arm 11, the second arm 12, and the loupe main body 1 are caused by the frictional resistance in the circumferential direction. Since the member is held at an arbitrary displacement position, the loupe main body 1 and the stand 2 can be used even when the connecting

shafts

45, 58, and 77 or the connecting

holes

24, 37, and 41 are worn with long-term use. It is possible to continue to hold the posture of sure.

In the usage mode shown in FIG. 1, by positioning the visual recognition object directly below the lens 3, it is possible to work in a hands-free state while viewing an enlarged virtual image of the visual recognition object through the lens. When the usage pattern shown in FIG. 1 is used, as shown in FIG. 15, the magnet 13 is adsorbed to one jaw portion 97 of a stripper (tool) 96 formed of a steel material (magnetic metal material). The coating can be removed. At this time, since the state of the cutting edge 98 provided on one jaw portion 97 or the covered electric wire can be visually recognized as an enlarged virtual image, the covering removal operation of the covered electric wire can be performed accurately. In addition, since the first joint structure H1 and the second joint structure H2 can each be rotated 360 degrees, the lens 3 can be viewed symmetrically even when the magnet 13 is attracted to the vicinity of the visual target. Therefore, the usability of the loupe with the stand can be improved.

(Use form 2) FIG. 13 shows a use in which the stand 10 and the first arm 11 are placed on the placement surface S, the second arm 12 is raised, and the loupe body 1 is substantially parallel to the placement surface S. The form is shown. In this form of use, the stand base 10 and the first arm 11 are simultaneously supported by the mounting surface S. Therefore, the second arm 12 is not only when the mounting surface S is a magnetic metal material but also when it is not. The loupe main body 1 can be supported in a stable state while standing. Also in this form of use, by positioning the visual recognition object directly below the lens 3, it is possible to work in a hands-free state while viewing an enlarged virtual image of the visual recognition object through the lens.

(Usage form 3) FIG. 14 shows a case where the loupe with a stand is used in a hand-held state. In that case, the first arm 11 and the second arm 12 are folded in parallel, the stand base 10 is folded and stored on the right side of the first arm 11, and the loupe body 1 is positioned in front of both

arms

11 and 12. . By holding the first arm 11 and the second arm 12 in this state with one hand, the magnified virtual image can be seen by holding the lens 3 over the object to be viewed. In the usage form of FIG. 14, the stand 10, the first arm 11 and the second arm 12 are placed on the placement surface S, and the loupe body 1 is inclined obliquely in a direction away from the placement surface S. Can be used.

(Usage form 4) The loupe with a stand in FIG. 3 extends the first arm 11, the second arm 12, and the loupe main body 1 linearly in a direction away from the stand 10 with the stand 10 as a position reference. It is the state made to do. By adsorbing the stand 10 in this state to a magnetic metal material that is vertical or inclined, the magnified virtual image can be seen with the lens 3 of the loupe body 1 facing the object to be viewed. As described above, the loupe with the stand has the first joint structure H1 and the second joint structure H2 that are capable of relative rotation of 360 degrees and a high degree of freedom of the joint, so the posture of the stand 2 and the loupe main body 1 can be used in the form 1 Various modifications can be made to forms other than ˜4. Incidentally, a conventional magnifying glass with a stand has a limited number of possible forms of use since the degree of freedom of the joint is low.

4 and 5 show a state where the entire loupe with a stand is folded and stored. When the entire loupe is folded and stored, as described with reference to FIG. 14, the first arm 11 and the second arm 12 are folded in parallel, and then the stand base 10 is rotated around the first connecting shaft 45. The first arm 11 is folded and stored on the right side. Further, the loupe body 1 is rotated around the third connecting shaft 77 to be folded and stored on the upper surfaces (or lower surfaces) of the

arms

11 and 12 and the stand 10. As shown in FIG. 5, the loupe body 1 in this state is accommodated in a longitudinal length range of about 77 mm occupied by the first arm 11 and the second arm 12. Further, the center of the lens 3 is located in the vicinity of the loupe center axis P, and the maximum left-right width in the folded state is about 50 mm. Therefore, the folding position of the entire loupe can be made compact, and the loupe with a stand can be prevented from becoming bulky when being stored in a pocket of work clothes or the like. The loupe central axis P is a central axis that passes through the centers of adjacent portions of the

arms

11 and 12 when the first arm 11 and the second arm 12 are folded in parallel.

16 to 18 show another embodiment of a magnifying glass with a stand. The main differences between the loupe with a stand in this embodiment and the loupe with a stand described in the previous embodiment are as follows. As shown in the plan view of FIG. 16, when the stand base 10 is used as a position reference, the first arm 11, the second arm 12, and the loupe body 1 are arranged on the right side in the order of description, and each member is a first one. The joint structure H1, the second joint structure H2, and the third joint structure H3 are connected. The vertical thickness of the stand base 10 is set to be larger than the vertical thickness of the stand base 10 described in the previous embodiment, and a receiving seat 101 for receiving the lens holder 4 is formed in a recess on the upper surface of the magnet holder 14. .

As shown in the left side view of FIG. 16, in the state where the first arm 11, the second arm 12, and the loupe main body 1 are linearly extended, the first arm 11 has a first central axis of the arm portion 20. It is formed in a state of being offset from the line connecting the centers of the connecting shaft 45 and the second connecting shaft 58 to the side away from the mounting surface S, and the whole is formed in a faint shape. Similarly, the second arm 12 is arranged such that the central axis of the arm portion 33 is biased toward the side closer to the placement surface S than the line connecting the centers of the second connecting shaft 58 and the third connecting shaft 77. As a result, the whole is formed in a faint shape. Since the other structure is the same as the loupe with a stand described above, the same reference numerals are assigned to the same members and the description thereof is omitted.

Due to the difference in structure described above, as shown in FIG. 17, the loupe main body 1 in a state in which the entire loupe is folded and stored is accommodated in the recessed portions 102 of the first and

second arms

11 and 12 folded in parallel. Thus, it is within the range of the vertical thickness of both

arms

11 and 12. A part of the lens holder 4 is supported by a receiving seat 101 provided on the magnet holder 14.

FIG. 19 is a six-side view of the appearance of the extended loupe with the stand described in FIG. FIG. 20 is a six-sided external view of the magnifying glass with a stand in the folded storage state described in FIGS. 17 and 18.

FIG. 21 shows an embodiment in which the clip 110 is supported by the stand 2 instead of the loupe main body 1. There, a clip is constituted by a pair of sandwiching

arms

111 and 112, a clip shaft 113 that connects both

arms

111 and 112 so as to be swingable, a kick spring 114 disposed around the clip shaft 113, and the like. A boss 115 is provided at the operation end of one clamping arm 111, and this boss 115 is connected to a bracket 116 provided integrally with the third connection shaft 77 so as to be relatively rotatable by a fourth connection shaft 117. The distance between the centers of the first connecting shaft 45 and the second connecting shaft 58 is set smaller than the distance between the centers of the second connecting shaft 58 and the third connecting shaft 77. Therefore, the engagement shaft portion 55 is provided in the first arm 11 on the side where the distance between the centers is small, and the engagement hole 118 corresponding to the engagement shaft portion 55 is provided in the second arm 12. At the time of use, for example, a small part is sandwiched and fixed between the holding claws of the pair of holding

arms

111 and 112, and necessary processing and processing can be performed while visually checking the part held by the loupe with the stand. In addition, since the structure of the stand 2 other than the above is the same as the already described stand, the same reference numeral is given to the same member, and the description thereof is omitted.

In the above embodiment, the

position holding bodies

47, 61, and 79 are configured by O-rings, and friction resistance is applied in the circumferential direction of the first, second, and third connecting

shafts

45, 58, and 77. But that is not necessary. For example, the connecting shafts 45. Are provided on the opposing surfaces of the base connecting arm 15 and the first connecting portion 21, the opposing surfaces of the adjacent second connecting

portions

22 and 34, and the opposing surfaces of the lens connecting arm 5 and the third connecting portion 35.

Position holding bodies

47, 61, 79 that are elastically deformed in the direction of the central axis of 58, 77 are arranged, and a frictional resistance is generated between each

position holding body

47, 61, 79 and a member that is in close contact therewith. Also good. In this case, the

position holding bodies

47, 61, 79 can be formed of at least one of rubber, synthetic rubber, felt, or the like, or a metal or plastic disc spring or compression spring is used as an elastic deformation element. Can be formed. A plurality of O-

rings

47, 61, and 79 may be attached to each of the connecting

shafts

45, 58, and 77.

The lens holder 4 is preferably an endless ring, but may be a frame that can hold at least half of the periphery of the lens 3. In short, the outer shape of the lens holder 4 can be freely set as long as the lens 3 has a structure that does not easily fall off the lens holder 4 due to an external force such as a drop impact. In the present invention, the endless ring does not necessarily mean a circle, but a concept including a polygon, an ellipse, and the like.

The distance between the centers of the first connecting shaft 45 and the second connecting shaft 58 and the distance between the centers of the second connecting shaft 58 and the third connecting shaft 77 do not have to be the same. 55 may be provided in the first arm 11 (or the second arm 12) on the side having a small distance between the centers, and an engagement hole corresponding to the engagement shaft portion 55 may be provided in the other arm. The second connecting shaft 58 can be formed integrally with the first arm 11 or the second arm 12. The retaining

members

46, 59, 60, and 78 can be constituted by screws and plain washers that are screwed into the shaft ends of the connecting

shafts

45, 58, and 77. The engaging shaft portion 55 may be integrally formed on the side of the retaining body 78 for the third connecting shaft 77. The first joint structure H1, the second joint structure H2, and the third joint structure H3 can each be configured by a ball joint. In that case, the stand base 10 and the first arm 11, the first arm 11 and the second arm 12, or the second arm 12 and the loupe main body 1 are operated to rotate relative to each other via a ball joint, and the posture of the clip with the stand is set. Can be changed in the same manner as the previous loupe with a stand.

The loupe with a stand according to the above embodiment is assumed to be used at a work site such as a factory, but the loupe with a stand according to the present invention is used in various situations such as a laboratory, a test site, a school, etc. The size and magnification of the lens 3 can be appropriately selected depending on the application. The lens 3 may be a Fresnel lens, a combination lens, or a glass lens.

DESCRIPTION OF SYMBOLS 1 Loupe main body 2 Stand 3 Lens 4 Lens holder 10 Stand base 11 1st arm 12 2nd arm 13 Magnet 21 1st connection part 22 2nd connection part 34 of 1st arm 2nd connection part 35 of 2nd arm 3rd connection Part 45 First connection shaft 58 Second connection shaft 77 Third connection shaft H1 First joint structure H2 Second joint structure H3 Third joint structure

Claims

A loupe body (1) and a stand (2) for supporting the loupe body (1);
The stand (2) includes a stand base (10), a first arm (11), a second arm (12), and a first joint structure (H1) that connects the stand base (10) and the first arm (11). ), A second joint structure (H2) for connecting the first arm (11) and the second arm (12), and a third joint structure (H3) for connecting the second arm (12) and the loupe body (1). And
Each of the first to third joint structures (H1, H2, and H3) can be rotated relative to each other about the first, second, and third connection shafts (45, 58, and 77). Configured,
A magnet (13) that is attracted to the magnetic metal material and supports the loupe body (1) and the stand (2) is fixed to the stand base (10),
Each member of the stand base (10), the first arm (11), the second arm (12), and the loupe body (1) is arbitrarily attached to each of the first to third joint structures (H1, H2, and H3). Position holding bodies (47, 61, 79) that hold positions at the displacement positions are provided,
The stand base (10) includes a magnet (13), a magnet holder (14) for fixing and holding the magnet (13), and an L-shaped base connecting arm (15) extending from one side around the magnet holder (14). ), And the base connecting arm (15) is connected to the first connecting portion (21) of the first arm (11) by the first connecting shaft (45),
The loupe body (1) includes a lens (3), a lens holder (4) that supports the lens (3), and an L-shaped lens connecting arm (5) that is extended from one side of the lens holder (4). The lens connecting arm (5) is connected to the third connecting portion (35) of the second arm (12) by the third connecting shaft (77),
In a state where the first arm (11) and the second arm (12) are folded in parallel, the stand base (10) is rotated around the first connecting shaft (45) to move the outer side of the first arm (11). The loupe body (1) can be rotated around the third connecting shaft (77) and folded to either one of the upper and lower sides of the arms (11, 12) and the stand base (10). Can be stored,
In a state where the loupe body (1) is folded and stored on either one of the upper and lower sides of the arms (11, 12) and the stand base (10),
A loupe with a stand in which the loupe body (1) is housed within a longitudinal length range occupied by the arms (11, 12), and the center of the lens (3) is located in the vicinity of the loupe center axis (P). .
The position holding body is composed of O-rings (47, 61, 79) mounted around the first, second, and third connecting shafts (45, 58, 77).
The members of the stand base (10), the first arm (11), the second arm (12), and the loupe main body (1) are arbitrarily displaced by the circumferential frictional resistance of the O-ring (47, 61, 79). The magnifying glass with a stand according to claim 1, which is held in position.
The loupe body (1) includes a lens (3) and a lens holder (4) that supports the lens (3).
A partial arc-shaped front rib (91) that receives the peripheral surface of the lens (3) and a partial arc-shaped back rib (92) that receives the peripheral back surface of the lens (3) along the inner edge of the lens holder (4). ) And are provided alternately,
Around the lens holder (4), a lens mounting opening (93) reaching the inner edge of the lens holder (4) is formed.
The lens (3) inserted from the lens mounting opening (93) is fitted between the front rib (91) and the back rib (92) so that the lens (3) is supported by one lens holder (4). The loupe with a stand according to claim 1 or 2.
A first connecting part (21) and a second connecting part (22) are provided at one end and the other end of the first arm (11),
A second connecting part (34) and a third connecting part (35) are provided at one end and the other end of the second arm (12),
The first joint structure (H1) includes a stand base (10), a first connecting portion (21) disposed on one side of the stand base (10), and a first connecting shaft that connects both (10, 21). (45) and
The second joint structure (H2) includes a second connecting portion (22) of the first arm (11) and a second connecting portion of the second arm (12) disposed on one side of the second connecting portion (22). (34) and a second connecting shaft (58) for connecting the two (22, 34).
The third joint structure (H3) includes a third connecting portion (35) of the second arm (12), a loupe main body (1) disposed on one side of the third connecting portion (35), and both ( 1 and 35) and a third connecting shaft (77).
A first arm (11), a second arm (12), and a loupe body (1) are arranged adjacent to each other in the order of description on one side of the stand base (10), and the stand base (10) and the first arm (11). The magnifying glass with a stand according to any one of claims 1 to 3, wherein the first arm (11) and the second arm (12) are connected to each other so as to be rotatable relative to each other by 360 degrees.
The loupe with a stand according to any one of claims 1 to 4, wherein a knob portion (6) for displacing the loupe body (1) is formed around the lens holder (4).
Retaining bodies (46, 59, 60, 78) in which the first, second, and third connecting shafts (45, 58, 77) are fixed to the shaft ends of the connecting shafts (45, 58, 77), respectively. The first, second, and third connecting portions (21, 22, 34, and 35) are fixed so that they cannot be removed.
The retaining body (46, 59, 60, 78) includes an elastically deformable leg piece (53, 73, 86) and an operating head (52, 73) that defines the insertion limit of the leg piece (53, 73, 86). 72, 85), and
The leg pieces (53, 73, 86) are pressed into the engaging grooves (49, 66, 67, 81) provided at the shaft ends of the first, second, and third connecting shafts (45, 58, 77). The magnifying glass with a stand according to any one of claims 1 to 5, wherein the connecting shafts (45, 58, 77) are secured by fitting.
The distance between the centers of the first connecting shaft (45) and the second connecting shaft (58) and the distance between the centers of the second connecting shaft (58) and the third connecting shaft (77) are set to be the same.
Insertion holes (26, 43) having the same diameter for receiving the operation heads (52, 85) of the retaining members (46, 78) are formed in the first connection part (21) and the third connection part (35), respectively. Has been
The outer end of the operation head (52) of the one retaining member (46) protrudes outward from the insertion hole (26) to constitute an engagement shaft portion (55),
In a state where the first arm (11) and the second arm (12) are folded in parallel, the engagement shaft portion (55) engages with the insertion hole (38) of the adjacent retaining member (78), The loupe with a stand according to claim 6, wherein both arms (11, 12) are held in a folded posture.
A strap hole (30) is formed in the second connecting portion (22) of either the first arm (11) or the second arm (12),
The both end openings of the strap hole (30) are open to the peripheral surface of the second connecting part (22) facing the free space in a state where the arms (11, 12) are folded in parallel. A loupe with a stand according to any one of 7 above.