Magnifying glass

Abstract

To improve the convenience of a user.SOLUTION: The magnifying glass according to an embodiment of the present disclosure includes: a magnifying lens; a holder part for holding the magnifying lens; and a strap part which is deformable and can hold the shape after deformation. One of both end parts of the strap part is removably connected to the holder part or is fixed to the holder part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to magnifying glasses. [Background technology]

[0002] Patent Document 1 discloses a magnifying glass for a portable information terminal that enables a user to enlarge and view the display screen of a portable information terminal such as a smartphone. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-92741 Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure provides a magnifying glass that is useful for improving user convenience. [Means for solving the problem]

[0005] [1] A magnifying glass comprising a magnifying lens, a holder portion for holding the magnifying lens, and a strap portion that is deformable and can retain its shape after deformation, wherein only one of both ends of the strap portion is detachably connected to the holder portion or fixed to the holder portion.

[0006] [2] The magnifying glass described in [1] above, further comprising an illumination unit provided in the holder unit.

[0007] [3] The magnifying glass described in [1] or [2] above, wherein the holder portion has a battery storage portion for storing a button battery.

[0008] [4] The magnifying glass described in [3] above, wherein the battery storage section includes a first side wall portion and a second side wall portion facing in opposite directions, the first side wall portion has a first opening for inserting and removing the button battery into the battery storage section, and the second side wall portion has a second opening having a width smaller than the maximum width of the button battery, and the battery storage section is configured to hold the button battery in the battery storage section.

[0009] [5] The magnifying glass described in [4] above, wherein the battery storage section further includes an electrode member that applies an external force to either the positive or negative electrode of the button battery so as to restrict movement of the stored button battery.

[0010] [6] The magnifying glass according to [4] or [5] above, wherein the width of the second opening is 35% to 65% of the width of the first opening. Effect of the Invention

[0011] According to the present disclosure, a magnifying glass useful for improving user convenience is provided. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a perspective view showing an example of a magnifying glass. [Diagram 2] FIG. 2 is a front view that illustrates a schematic example of a portion of the magnifying glass. [Diagram 3] Fig. 3(a) is a rear view and Fig. 3(b) is a side view showing a schematic example of a part of the magnifying glass. [Figure 4] FIG. 4 is a schematic diagram illustrating a state in which the magnifying glass is used. [Diagram 5] Fig. 5(a) is a side view illustrating one side of the battery housing section, Fig. 5(b) is a side view illustrating the other side of the battery housing section, Fig. 5(c) is a side view illustrating a schematic button battery, and Fig. 5(d) is a front view illustrating a schematic button battery. [Figure 6] FIG. 6 is a perspective view illustrating the inside of the battery storage section. [Figure 7] FIG. 7 is a side view illustrating the inside of the battery storage section. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an embodiment will be described with reference to the drawings. In the description, the same elements or elements having the same functions are given the same reference numerals, and duplicated descriptions will be omitted. For convenience of description, some drawings show an orthogonal coordinate system defined by an X-axis, a Y-axis, and a Z-axis.

[0014] FIG. 1 shows a magnifying glass according to an embodiment. The magnifying glass 1 shown in FIG. 1 is a tool (instrument) for magnifying and viewing small or fine parts. For example, a user who cannot read small characters on a smartphone, in a newspaper, or in a book can use the magnifying glass 1 to enlarge the characters and read the small characters. The main users of the magnifying glass 1 are, for example, the elderly (seniors). The magnifying glass 1 can be carried by the user.

[0015] The magnifying glass 1 can be used in three ways, for example. Specifically, the user can use the magnifying glass 1 by hanging it around the neck, or by placing it on a table such as a desk. Furthermore, the user can use the magnifying glass 1 by holding it in the hand. The magnifying glass 1 may be called a neck-hanging magnifying glass or a magnifying glass that can be hung around the neck. Hanging around the neck may also be called hanging on the shoulder.

[0016] The magnifying glass 1 includes, for example, a magnifying lens 10, a holder unit 20, a strap unit 50, and a storage unit 60. An example of each component will be described below. In the following description, a user who uses the magnifying glass 1 will be referred to as "user U," and an object to be magnified by the magnifying glass 1 will be referred to as "object TO."

[0017] The magnifying lens 10 is an optical component for magnifying the object TO. The magnifying lens 10 is, for example, a flat lens formed in a plate shape. In one example, the magnifying lens 10 is a Fresnel lens. The magnifying lens 10 may be a lens having another structure, such as a convex lens, as long as it is capable of magnifying the object TO at a certain magnification. The magnification ratio of the magnifying lens 10 is, for example, about 1.6 to 2.0.

[0018] The magnifying lens 10 may be formed in a rectangular shape. The vertical width indicating the size in the long side direction of the rectangular magnifying lens 10 may be 15 cm or more, 16 cm or more, or 17 cm or more. The vertical width of the magnifying lens 10 may be 21 cm or less, 20 cm or less, or 19 cm or less. The horizontal width indicating the size in the short side direction of the rectangular magnifying lens 10 may be 9 cm or more, 10 cm or more, or 11 cm or more. The horizontal width of the magnifying lens 10 may be 15 cm or less, 14 cm or less, or 13 cm or less. In one example, the size of the magnifying lens 10 is 18 cm long x 12 cm wide.

[0019] In this disclosure, in normal use, the parts of the magnifying lens 10 and the holder part 20 that face the user U are referred to as the "front" or "front side", and the parts that face the object TO are referred to as the "rear" or "rear side". The magnifying lens 10 includes a front surface 12a and a back surface 12b that face opposite to each other. The front surface 12a is the main surface of the front side, and the back surface 12b is the main surface of the back side. In the following, the direction perpendicular to the front surface 12a (back surface 12b) is referred to as the "Z axis", the longitudinal direction of the magnifying lens 10 is referred to as the "Y axis", and the short side direction of the magnifying lens 10 is referred to as the "X axis".

[0020] The holder part 20 is a part that holds the magnifying lens 10. For example, one end (the end and its vicinity) of the magnifying lens 10 in the Y-axis direction is fixed to the holder part 20. In one example, a groove having a thickness equivalent to that of the magnifying lens 10 is formed in the holder part 20, and the magnifying lens 10 is fixed in a state in which the one end is inserted into the groove. By fixing only the one end of the magnifying lens 10 in the Y-axis direction to the holder part 20, most of the magnifying lens 10 becomes frameless (a state in which there is no member on the edge of the lens).

[0021] 2 is a schematic front view of a portion of the magnifying glass 1 in a state where the strap portion 50 is not connected to the holder portion 20. The holder portion 20 may be formed in a T-shape when viewed from the Z-axis direction. At least a portion of the holder portion 20 is made of resin. The holder portion 20 has, for example, a holding body portion 22 and a battery storage portion 24.

[0022] The holding main body part 22 is a main body part in the holder part 20 that holds the magnifying lens 10. The holding main body part 22 may be formed to extend along the X-axis direction. The size of the holding main body part 22 in the X-axis direction may be larger than the above-mentioned width of the magnifying lens 10. Unlike the example shown in FIG. 2, the size of the holding main body part 22 in the X-axis direction may be equal to or smaller than the above-mentioned width of the magnifying lens 10. The magnifying lens 10 may be fixed to the holding main body part 22 such that the center of the holding main body part 22 in the X-axis direction and the center of the magnifying lens 10 in the X-axis direction approximately coincide with each other.

[0023] The battery storage section 24 is a section that stores one or more button batteries 90 (for example, one button battery 90). In other words, the battery storage section 24 is a section that stores one or more button batteries 90 while holding the button batteries 90. At least a part of the battery storage section 24 is formed integrally with at least a part of the holding main body section 22. The battery storage section 24 is connected, for example, to a central part in the X-axis direction of the holding main body section 22, and extends along the Y-axis direction in a direction away from the magnifying lens 10. The battery storage section 24 may be formed in a rectangular parallelepiped shape.

[0024] Unlike a configuration in which a separate storage case for storing a battery is inserted, in the magnifying glass 1, the holder part 20 for holding the magnifying lens 10 itself is provided with a portion (battery storage part 24) for directly storing a button battery 90. The button battery 90 is a battery formed in a circular (disk) shape. The button battery 90 is also called a button battery, coin battery, or micro battery. The button battery 90 may be a primary battery or a secondary battery. Details of the battery storage part 24 will be described later.

[0025] 3(a) shows a schematic rear view of a portion of the magnifying glass 1 with the strap portion 50 connected to the holder portion 20. FIG. 3(b) shows a schematic side view of a portion of the magnifying glass 1 with the strap portion 50 connected to the holder portion 20. The magnifying glass 1 may include an illumination portion 40. The illumination portion 40 may be provided in the holder portion 20.

[0026] The illumination unit 40 is a part that irradiates light onto the object TO. The illumination unit 40 is arranged so as to be able to irradiate light onto the object TO while the user U is viewing the object TO in a magnified state through the magnifying lens 10. The illumination unit 40 is able to emit light to an area adjacent to the rear surface 12b of the magnifying lens 10. The illumination unit 40 is composed of, for example, a plurality of LED lights 40a embedded in the holding body portion 22 of the holder portion 20. The plurality of LED lights 40a may be arranged at intervals along the X-axis direction.

[0027] The illumination unit 40 (more specifically, one or more light sources included in the illumination unit 40) is supplied with power from a button battery 90 stored in the battery storage unit 24. The illumination unit 40 may be formed in any manner as long as it is capable of irradiating light onto the object TO. The illumination unit 40 may diffuse light from one or more LED light sources using an optical component such as a lens, and then emit the diffused light.

[0028] Returning to FIG. 2, the magnifying glass 1 may include a switch unit 42. The switch unit 42 may be provided in the holder unit 20. The switch unit 42 switches the illumination by the illumination unit 40 between on and off in response to an operation by the user U. Specifically, the switch unit 42 switches between a state in which the button battery 90 stored in the battery storage unit 24 and the light source in the illumination unit 40 are electrically connected to each other and a state in which the button battery 90 stored in the battery storage unit 24 and the light source in the illumination unit 40 are electrically disconnected from each other, by the operation by the user U. By providing the switch unit 42, the user U can use the light by the illumination unit 40 as needed. In addition to switching the illumination unit 40 on and off, at least one of dimming and color temperature adjustment in the illumination unit 40 may be performed by the operation (e.g., long press) of the switch unit 42 by the user U.

[0029] A wiring member is housed inside the holder unit 20 for electrically connecting the button battery 90 housed in the battery storage unit 24 and the light source in the illumination unit 40. The wiring member includes, for example, a circuit board and a lead wire. The switch unit 42 is connected to the wiring member housed inside the holder unit 20. The battery storage unit 24 of the holder unit 20 (more specifically, a casing that forms a space for housing the button battery 90) can be held by the user U with the strap unit 50 removed.

[0030] 1, the strap part 50 is a member formed in a long shape. The length of the strap part 50 may be 80 cm or more, 90 cm or more, or 100 cm or more from the viewpoint of allowing the user U to use the magnifying glass 1 by hanging it around the neck. The length of the strap part 50 may be 150 cm or less, 140 cm or less, 130 cm or less, or 120 cm or less from the viewpoint of facilitating storage of the magnifying glass 1 when not in use.

[0031] The strap portion 50 is capable of being deformed and capable of retaining its shape after deformation. Being deformable means that the bent state of the strap portion 50 can be changed by the hand of the user U. Being capable of retaining its shape after deformation means that after the strap portion 50 is bent by the hand of the user U, the strap portion 50 itself is substantially maintained in that bent state unless an external force is applied.

[0032] The strap portion 50 may be configured by a so-called stand flexible tube. The stand flexible tube is also called a stand type flexible tube or a stand tube. The stand flexible tube constituting the strap portion 50 is, for example, a cylindrical member having a multi-layer structure in which a special irregular wire is wound around the outer periphery of a winding layer of hard steel wire, and functions as a flexible member having flexibility. In the stand flexible tube, frictional resistance occurs between the layers when the tube is bent, generating a holding force that holds the tube in a bent state. In the strap portion 50, the outer periphery of the stand flexible tube may be covered with rubber made of a silicone material.

[0033] The strap unit 50 may be detachably connected to the holder unit 20. In this case, the user U can use the magnifying glass 1 by connecting the strap unit 50 to the holder unit 20, and can use the magnifying glass 1 by removing the strap unit 50 from the holder unit 20. In FIG. 1, one of the two ends of the strap unit 50 is indicated by "50a" and the other end is indicated by "50b."

[0034] In the example shown in FIG. 1 etc., only the end 50b (one end) of both ends of the strap part 50 is detachably connected to the holder part 20. The end 50a of the strap part 50 is not connected to the holder part 20. The end 50b may be connected to the holder part 20 via another member for connection. In one example, the end 50b is detachably connected to the holder part 20 by a magnet provided on the end 50b and a magnet provided on the outer wall of the battery storage part 24 of the holder part 20. The end 50a does not have to be connected to any member. In a state where the strap part 50 is connected to the holder part 20, the end 50b can be called a fixed end, and the end 50a can be called a free end.

[0035] Since the end 50b is connected to the holder unit 20 and the end 50a is not connected to the holder unit 20, a loop (a loop that goes around once) is not formed in the strap unit 50 when the strap unit 50 is connected to the holder unit 20. In other words, an opening is not formed by the strap unit 50. In this case, the user U can easily hang the strap unit 50 around his neck and remove the strap unit 50 from his neck, compared to the case where a magnifying glass is used in which a strap unit with a loop formed therein is connected to the holder unit.

[0036] 2, a storage section 60 is fixed to the end 50b of the strap section 50 or in the vicinity of the end 50b. The storage section 60 has an internal space for storing the battery storage section 24. For example, at one end of the storage section 60, the storage section 60 and the strap section 50 are fixed to each other with the end 50b stored in the internal space. At the other end of the storage section 60, an opening 60a is formed for inserting and removing the battery storage section 24 into and from the internal space of the storage section 60.

[0037] In one example, the user U inserts the battery housing 24 into the internal space of the housing 60. As a result, in the internal space of the housing 60, the strap part 50 is connected to the battery housing 24 by a magnet provided at the other end opposite to the one end connected to the holding body part 22 of the battery housing 24 and a magnet provided at the tip of the end 50b. When the user U separates the strap part 50 and the holder part 20 so as to take the battery housing 24 out of the internal space of the housing 60, the adhesion between the magnets is released, and the connection state between the holder part 20 and the strap part 50 (end 50b) is released. Note that instead of the adhesion between the magnets, these members may be connected to each other by a magnet provided on one of the battery housing 24 and the end 50b and a metal, such as iron, that is attracted to the magnet provided on the other of the battery housing 24 and the end 50b.

[0038] 1, the user U uses the magnifying glass 1 by bending a part of the strap part 50 including the end part 50a and placing the bent part on a table or the like. In this case, the shape of the strap part 50 itself is maintained, so that the magnifying lens 10 is maintained at a position desired by the user U. In other words, the user U does not hold a part of the magnifying glass 1, and the magnifying lens 10 is held at an arbitrary position.

[0039] 4, the user U uses the magnifying glass 1 with the strap part 50 bent to fit the shape of the back of the neck and hung around the neck or the neck and shoulders. In this case, the shape of the strap part 50 itself is maintained, so that the magnifying lens 10 is maintained in a desired position by the user U without the user U holding the magnifying glass 1 with his / her hands. In other words, the user U can view at least a part of the object TO by magnifying it with the magnifying lens 10 without holding the magnifying glass 1 with his / her hands.

[0040] The user U may use the magnifying glass 1 by holding the battery storage section 24 of the holder section 20 in his / her hand with the strap section 50 removed from the holder section 20. As described above, the user U can use the magnifying glass 1 by selecting any one of the three usage modes.

[0041] Next, the battery housing section 24 included in the holder section 20 will be described in detail with reference to Figs. 5 to 7. In the following, a case where one button battery 90 is stored in the battery housing section 24 will be illustrated. Fig. 5(a) is a side view of the battery housing section 24 as viewed from one side in the X-axis direction, and Fig. 5(b) is a side view of the battery housing section 24 as viewed from the other side in the X-axis direction. Fig. 5(c) is a side view of the button battery 90, and Fig. 5(d) is a front view of the button battery 90. Fig. 6 is a perspective view showing the inside of the battery housing section 24. Fig. 7 is a side view showing the inside of the battery housing section 24. A part of the battery housing section 24 (the upper part of the casing) is omitted in Figs. 6 and 7.

[0042] The battery storage section 24 has a casing 26. The casing 26 forms an accommodation space S for storing the button battery 90. The casing 26 may be made of resin. The casing 26 includes, for example, an upper wall portion 27a, a bottom wall portion 27b, a side wall portion 28a, a side wall portion 28b, and a side wall portion 29. The upper wall portion 27a and the bottom wall portion 27b face in opposite directions to each other and are formed to extend in the XY plane. The upper wall portion 27a faces the front side, and the bottom wall portion 27b faces the back side.

[0043] The side wall portion 28a (first side wall portion) and the side wall portion 28b (second side wall portion) are opposite to each other and are formed to extend in the YZ plane. The side wall portion 28a and the side wall portion 28b connect the upper wall portion 27a and the bottom wall portion 27b, respectively. One end of each of the side wall portion 28a and the side wall portion 28b in the Y axis direction is connected to the holding body portion 22 of the holder portion 20. The side wall portion 29 is formed to extend in the XZ plane and is connected to the other end of each of the side wall portion 28a and the side wall portion 28b in the Y axis direction. The side wall portion 29 forms the tip end of the battery storage portion 24 (casing 26) in the Y axis direction, and connects the upper wall portion 27a and the bottom wall portion 27b, as well as connecting the side wall portion 28a and the side wall portion 28b.

[0044] As shown in Fig. 5(a), a first opening 31 is formed in the side wall portion 28a. The first opening 31 is formed to extend along the Y-axis direction. The first opening 31 is an opening for inserting and removing the button battery 90 into the battery storage portion 24 (i.e., the storage space S). Specifically, when replacing the button battery 90, the user U inserts the button battery 90 into the storage space S through the first opening 31 and removes the button battery 90 from the storage space S through the first opening 31.

[0045] A horizontal width L1 indicating the width (maximum width) of the first opening 31 in the Y-axis direction is greater than a diameter LB (maximum width) of the button battery 90. A vertical width indicating the width (maximum width) of the first opening 31 in the Z-axis direction is greater than a thickness of the button battery 90. Note that Figures 5(c) and 5(d) show the orientation of the button battery 90 when accommodated in the accommodation space S.

[0046] As shown in FIG. 5(b), the side wall portion 28b is formed with a second opening 32. The second opening 32 is an opening used when removing the button battery 90 from the storage space S through the first opening 31. The second opening 32 is large enough that the button battery 90 cannot be inserted or removed from the battery storage portion 24 through the second opening 32. In one example, the horizontal width L2 indicating the width (maximum width) of the second opening 32 in the Y-axis direction is smaller than the diameter LB of the button battery 90. The vertical width indicating the width (maximum width) of the second opening 32 in the Z-axis direction may be larger or smaller than the thickness of the button battery 90, or may be approximately equal to the thickness of the button battery 90.

[0047] The width L2 of the second opening 32 is smaller than the width L1 of the first opening 31. From the viewpoint of allowing the user U to easily know from which opening the button battery 90 can be inserted, the width L2 may be 65% or less, 60% or less, or 55% or less of the width L1. From the viewpoint of facilitating the operation of removing the button battery 90 using the second opening 32, the width L2 may be 35% or more, 40% or more, or 45% or more of the width L1. In one example, the width L2 is 35% to 65% of the width L1, or 40% to 60% of the width L1.

[0048] The vertical width of the second opening 32 may be approximately the same as the vertical width of the first opening 31. The first opening 31 and the second opening 32 may be formed such that the center of the first opening 31 in the Y-axis direction and the center of the second opening 32 in the Y-axis direction approximately coincide with each other. In the Z-axis direction, the position of at least a portion of the first opening 31 may be the same as the position of at least a portion of the second opening 32. In one example, the position of the center of the first opening 31 is the same as the position of the center of the second opening 32 in the Z-axis direction.

[0049] The battery housing section 24 is configured to hold the button battery 90 inserted in the storage space S (inside the battery housing section 24). The battery housing section 24 has a function of restricting movement of the button battery 90 by applying an external force to the button battery 90 in the storage space S. The battery housing section 24 has a member that applies an external force to the button battery 90 in the storage space S in the thickness direction of the button battery 90. As shown in Figures 5(c) and 5(d), the button battery 90 includes a positive electrode 92P and a negative electrode 92N that are oriented in opposite directions. When housed in the storage space S, the positive electrode 92P and the negative electrode 92N each extend in the XY plane.

[0050] 6 and 7, the interior of the battery housing section 24 is illustrated with top wall 27a and side wall sections 28a, 28b, and the upper halves of each of side wall sections 29 omitted. Battery housing section 24 has electrode members 34P and 34N that are disposed in storage space S. At least a portion of electrode members 34P and 34N are electrically connected to wiring member 48 that is disposed in storage space S. A light source of illumination section 40 and switch section 42 are electrically connected to wiring member 48.

[0051] The electrode member 34P comes into contact with the positive electrode 92P when the button battery 90 is stored in the battery storage section 24. The electrode member 34N comes into contact with the negative electrode 92N when the button battery 90 is stored in the battery storage section 24. The electrode member 34N extends in the XY plane, and is provided on the upper surface of the wiring member 48 so as to protrude slightly from the upper surface of the wiring member 48 (see FIG. 7). Note that in FIG. 7, the electrode member 34N is drawn enlarged and hatched for ease of understanding.

[0052] The electrode member 34P is provided so as to form a space between the electrode member 34P and the electrode member 34N for accommodating the button battery 90. In the Z-axis direction, at least a part of the space between the electrode member 34P and the electrode member 34N for accommodating the button battery 90 may be in the same position as at least a part of the first opening 31 and at least a part of the second opening 32.

[0053] The electrode member 34P includes a top plate portion 35a, a pair of connecting portions 35b, and one or more (for example, two) leaf spring portions 35c. The top plate portion 35a is disposed with a gap between it and the electrode member 34N, and spreads in the XY plane. When viewed from the front side to the back side in the Z axis direction, the area surrounded by the outer edge of the top plate portion 35a covers the entire electrode member 34N. The pair of connecting portions 35b are connected to both ends of the top plate portion 35a in the Y axis direction, and extend in the Z axis direction. Each of the pair of connecting portions 35b connects the top plate portion 35a and the wiring member 48. The pair of connecting portions 35b may face each other in the Y axis direction, and the gap between the pair of connecting portions 35b may be slightly larger than the diameter LB of the button battery 90.

[0054] An opening 35d is formed in the center of the top plate portion 35a to allow one or more leaf spring portions 35c to function as springs. The leaf spring portions 35c are formed to extend in one direction, and their base ends are connected to the top plate portion 35a. The leaf spring portions 35c are formed to extend obliquely downward from their base ends. When viewed from the Z-axis direction, the leaf spring portions 35c extend in the X-axis direction.

[0055] The tip end of the leaf spring portion 35c, which is the end opposite to the base end, is not connected to any location. The distance in the Z-axis direction between the tip end of the leaf spring portion 35c and the electrode member 34N is smaller than the distance in the Z-axis direction between the base end (top plate portion 35a) of the leaf spring portion 35c and the electrode member 34N. When the button battery 90 is not stored in the battery storage portion 24 (when the leaf spring portion 35c is in its natural state), the distance in the Z-axis direction between the tip end of the leaf spring portion 35c and the electrode member 34N is smaller than the thickness of the button battery 90.

[0056] The distance in the X-axis direction between the base end of the leaf spring portion 35c and the side wall portion 28a (or the first opening 31) is smaller than the distance in the X-axis direction between the tip end of the leaf spring portion 35c and the side wall portion 28a (or the first opening 31). When the leaf spring portion 35c is observed in the direction from the first opening 31 toward the second opening 32, the distance in the Z-axis direction between the leaf spring portion 35c and the electrode member 34N gradually decreases.

[0057] The leaf spring portion 35c is configured to apply an external force (biasing force) to the positive electrode 92P of the button battery 90 by the reaction force when the button battery 90 is inserted into the space between the electrode member 34N and the leaf spring portion 35c. The leaf spring portion 35c is configured to apply an external force to the positive electrode 92P of the button battery 90 in a direction from the positive electrode 92P to the negative electrode 92N. The leaf spring portion 35c applies an external force to the button battery 90 such that the button battery 90 does not fall due to its own weight even in a state in which the magnifying lens 10 and the holder portion 20 are arranged so that the first opening 31 is located vertically downward and the second opening 32 is located vertically upward. In addition, the leaf spring portion 35c applies an external force to the button battery 90 such that the button battery 90 does not come off through the first opening 31 even if a certain degree of external force (impact) is applied to the holder portion 20 including the battery storage portion 24.

[0058] When inserting the button battery 90 into the battery housing section 24, the user U moves the button battery 90 in the direction of arrow A shown in Fig. 6 with the button battery 90 aligned with the shape of the first opening 31. When the button battery 90 passes through the first opening 31 and is inserted to a position where it is sandwiched between one or more leaf spring parts 35c and the electrode member 34N, an external force is applied from the leaf spring part 35c to the positive electrode 92P of the button battery 90 due to the restoring force of the leaf spring part 35c. As a result, the electrode member 34P comes into contact with the positive electrode 92P, and the electrode member 34N comes into contact with the negative electrode 92N, and the button battery 90 is held in the battery housing section 24.

[0059] When removing the button battery 90 from the battery housing section 24, the user U uses the second opening 32 and a member 98 (e.g., a long member such as a key or scissors) that can pass through the second opening 32. Specifically, the user U inserts the member 98 into the battery housing section 24 through the second opening 32, and moves the button battery 90 with the member 98 in the direction of arrow B shown in Fig. 6. This causes the button battery 90 to be taken out of the battery housing section 24 through the first opening 31.

[0060] In the battery storage section 24 as described above, the user U does not need to open a lid to insert or remove the button battery 90, nor does the user U need to remove screws or the like to open the lid. Therefore, even if the user U is elderly, the user U can more easily install and remove the button battery 90. Also, since no lid is provided to store the button battery 90, the number of parts is reduced and the structure of the magnifying glass 1 is simplified.

[0061] The magnifying glass 1 described above is an example and can be modified as appropriate. The magnifying lens 10 may have a polygonal shape other than a rectangle. The magnifying lens 10 may have a circular shape, an elliptical shape, or a shape that combines a rectangle with one or more semicircles, etc.

[0062] The magnifying glass 1 may be provided with other components that operate by receiving power from the button battery 90 stored in the battery storage section 24, instead of or in addition to the illumination section 40. The battery storage section 24 may store two or more button batteries 90. In this case, the two or more button batteries 90 may be the same type (same size) of batteries. The battery storage section 24 may store two or more button batteries 90 connected in series with each other. By storing two or more button batteries 90, it is possible to increase the power that can be supplied to the illumination section 40 and the like. In the battery storage section 24, instead of or in addition to the electrode member 34P, the electrode member 34N may be configured to apply an external force to the button battery 90 to restrict movement. In this case, the electrode member 34N may have a leaf spring portion having a function similar to that of the leaf spring portion 35c. In the battery storage section 24, a member other than the electrode member 34P and the electrode member 34N may apply an external force to the button battery 90 to restrict movement.

[0063] The magnifying mirror 1 may include a battery storage section having a structure different from the battery storage section 24. The battery storage section of the magnifying mirror 1 may have a structure that allows the button battery 90 to be inserted and removed by opening and closing the lid. The battery storage section of the magnifying mirror 1 may store a type of battery other than the button battery 90.

[0064] The magnifying mirror 1 may not include a member such as the illumination unit 40 that operates by receiving power supply. In this case, the magnifying mirror 1 may not be provided with the battery storage unit 24 and the switch unit 42. Only one end of the strap unit 50 may be fixed to the holder unit 20, not in a detachable state. In this case, the one end may be fixed to the holder unit 20 via another member, or may be fixed directly to the holder unit 20. When the strap unit 50 is fixed to the holder unit 20, the strap unit 50 cannot be removed from the holder unit 20, but the user can still use the magnifying mirror 1 by hanging it around his neck. In one example of the various examples described above, at least a part of the matters described in the other examples may be combined.

[0065] [Summary of this disclosure] The magnifying glass 1 described above includes a magnifying lens 10, a holder part 20 that holds the magnifying lens 10, and a strap part 50 that is deformable and can retain its shape after deformation. Only one end part (end part 50b) of both ends of the strap part 50 is detachably connected to the holder part 20 or is fixed to the holder part 20.

[0066] For example, a structure in which both ends of the strap part are connected to the holder part 20 via other members or directly is also conceivable. In this structure, a loop part, i.e., an opening part, is formed in the strap part. Therefore, when a strap part having such a structure is used, when the user U hangs the magnifying glass around the neck or around the neck and shoulder, the user U needs to put on and take off the magnifying glass by passing his / her head through the loop part of the strap part. At this time, a part of the head or an accessory attached to the head may get caught in the loop part of the strap part, which may cause the user to feel stress. In contrast, in the magnifying glass 1, only one end of both ends of the strap part 50 is connected or fixed to the holder part 20. Therefore, a loop part is not formed in the strap part, and the operation of hanging the magnifying glass 1 around the neck and the operation of removing it from the neck are facilitated without the need to pass the head through the loop part. This reduces the possibility that the user feels stress when putting on and taking off the magnifying glass 1. Therefore, it is useful for improving the convenience of the user.

[0067] The magnifying glass 1 described above may further include an illumination unit 40 provided in the holder unit 20. In this case, even if the object TO has a dark part, the user U can use the magnifying glass 1, which is a single tool, to magnify the object TO while brightening it so that the user can see it. This is therefore even more useful in improving the user's convenience.

[0068] In the magnifying glass 1 described above, the holder part 20 may have a battery storage section 24 that stores a button battery 90. A structure in which the button battery is stored in a storage case formed separately from the holder part and the storage case is detachably attached to the holder part is also conceivable. In contrast, in the above configuration, the battery storage section 24 is formed in the holder part 20 itself, so the number of parts can be reduced. This is therefore useful for simplifying or miniaturizing the magnifying glass 1.

[0069] In the magnifying glass 1 described above, the battery storage section 24 may include a side wall section 28a and a side wall section 28b that are inversely oriented to each other. The side wall section 28a may have a first opening 31 formed therein for inserting and removing the button battery 90 into and from the battery storage section 24. The side wall section 28b may have a second opening 32 formed therein with a width L2 smaller than the maximum width (diameter LB) of the button battery 90. The battery storage section 24 may be configured to hold the button battery 90 in the battery storage section 24. In this case, the button battery 90 can be inserted into the battery storage section 24 through the first opening 31, and the inserted button battery 90 is held in the battery storage section 24. Then, a member can be inserted through the second opening 32 and the button battery 90 can be removed through the first opening 31. As described above, compared to a battery storage section having a lid, the button battery 90 can be attached and removed with a simpler operation. Therefore, it is more useful for improving the user's convenience. Furthermore, since it is necessary to insert a member into the second opening 32 to remove the button battery 90, even if a child (for example, a small child such as an infant) touches the battery housing section 24, the button battery 90 cannot be easily removed.

[0070] In the magnifying glass 1 described above, the battery storage section 24 may further include an electrode member (electrode member 34N) that applies an external force to either the positive electrode 92P or the negative electrode 92N of the button battery 90 so as to restrict the movement of the stored button battery 90. In order to supply power from the button battery 90, an electrode member that contacts the button battery 90 is required. In the above configuration, an external force is applied to restrict the movement of the button battery 90 using an electrode member that needs to contact the button battery 90, so there is no need to form a part just for holding the button battery 90. Therefore, it is useful for both facilitating the attachment and detachment of the button battery 90 to improve user convenience and simplifying the structure.

[0071] In the magnifying glass 1 described above, the width L2 of the second opening 32 may be 35% to 65% of the width L1 of the first opening 31. When the width L2 is 65% or less of the width L1, the user U can easily understand that the button battery 90 needs to be inserted and removed through the first opening 31. Furthermore, when the width L2 is 35% or more of the width L1, the user U can easily insert a member through the second opening 32 to remove the button battery 90. Therefore, it is further useful for improving the convenience of the user.

[0072] <Additional Notes> From the viewpoint of improving user convenience by allowing the button battery 90 to be attached and removed with a simpler operation than in a battery storage section having a lid, the strap section 50 may be connected to the holder section 20 in any form. As described above, only one end of the strap section 50 may be connected to the holder section 20, or both ends of the strap section 50 (both end 50a and end 50b) may be connected to the holder section 20. The present disclosure also includes the following configurations.

[0073] [1A] A magnifying lens, A holder portion for holding the magnifying lens; A strap portion that is deformable and can retain its shape after deformation; The strap portion is detachably connected to the holder portion or fixed to the holder portion; The holder portion has a battery storage portion for storing a button battery, The battery storage section includes a first side wall portion and a second side wall portion facing in opposite directions, The first side wall portion has a first opening for inserting and removing the button battery into and from the battery storage portion, The second side wall portion has a second opening having a width smaller than a maximum width of the button battery, The battery compartment is configured to hold the button battery therein.

[0074] [2A] The magnifying glass described in [1A] above, wherein the battery storage section further includes an electrode member that applies an external force to either the positive or negative electrode of the button battery so as to restrict movement of the stored button battery.

[0075] [3A] The magnifying glass according to [1A] or [2A] above, wherein the width of the second opening is 35% to 65% of the width of the first opening. [Explanation of symbols]

[0076] Reference Signs List: 1...magnifying glass, 10...magnifying lens, 20...holder portion, 24...battery storage portion, 28a, 28b...side wall portion, 31...first opening, 32...second opening, 40...illumination portion, 50...strap portion, 50a, 50b...end portions, 90...button battery.

Claims

1. A magnifying lens and A holder portion for holding the magnifying lens; A strap portion that is deformable and can retain its shape after deformation; A magnifying glass, wherein only one of both ends of the strap portion is detachably connected to the holder portion or fixed to the holder portion.

2. The magnifying glass according to claim 1 , further comprising an illumination section provided on the holder section.

3. The magnifying glass according to claim 1 or 2, wherein the holder portion has a battery storage portion for storing a button battery.

4. The battery storage section includes a first side wall portion and a second side wall portion facing in opposite directions, a first opening for inserting and removing the button battery into and from the battery storage section is formed in the first side wall; The second side wall portion has a second opening having a width smaller than a maximum width of the button battery, The magnifying glass of claim 3 , wherein the battery compartment is configured to hold the button cell battery therein.

5. 5. The magnifying glass according to claim 4, wherein said battery storage section further includes an electrode member that applies an external force to either a positive electrode or a negative electrode of said button battery so as to restrict movement of said button battery stored therein.

6. 5. The magnifying glass according to claim 4, wherein the width of the second opening is 35% to 65% of the width of the first opening.

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