Fixings

Abstract

The fixing member (10) comprises a main fixing part (100), an auxiliary fixing part (200) and a connecting part (300). The main fixing part (100) comprises a base (110), a first fixing part (120) and a second fixing part (130). The first fixing part (120) comprises a first supporting part (122) and a first flange (124). The second fixing part (130) comprises a second supporting part (132) and a second flange (134). The auxiliary fixing part (200) comprises an auxiliary supporting part (210) and an auxiliary flange (220). The sum of the length of the first supporting part (122), the length of the second supporting part (132) and the length of the auxiliary supporting part (210) in the surface direction is less than the length of the portion other than the light-transmitting surface (Sa) in the outer peripheral surface (S) in the circumferential direction of the optical device (1).

Description

Technical Field

[0001] The present invention relates to a fixing element. Background Art

[0002] In the past, there is known an optical device disclosed in Japanese Patent Publication No. 2019-160426. The optical device has a shape that extends long in one direction. In addition, among optical devices, the following optical device is also known: having a cylindrical outer peripheral surface, a portion of which constitutes a light-transmitting surface that allows light to pass through.

[0003] The optical device as described above has a shape that is long in one direction, so when the optical device is fixed to a mounting surface, a fixture that can support the center portion of the optical device in the longitudinal direction is sometimes used in order to improve vibration resistance and impact resistance. In this case, the fixture usually fixes the optical device to the mounting surface in a state of supporting a portion other than the light-transmitting surface of the outer peripheral surface of the optical device.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2019-160426 Summary of the invention

[0007] Problems to be solved by the invention

[0008] For example, when the fixing part has a shape that does not block the optical axis when the optical device is fixed to the mounting surface in a posture where the optical axis passing through the light-transmitting surface is perpendicular to the mounting surface, when the optical device is fixed to the mounting surface using the fixing part in a posture where the optical axis is parallel to the mounting surface, light passing through the light-transmitting surface is sometimes blocked by the fixing part.

[0009] An object of the present invention is to provide a fixture that can fix an optical device to a mounting surface without blocking light passing through a light-transmitting surface in any of the following postures: perpendicular to the mounting surface and parallel to the mounting surface.

[0010] Means for solving problems

[0011] A fixing member according to one aspect of the present invention is a fixing member for fixing an optical device to a mounting surface, the optical device having a cylindrical outer peripheral surface, and a portion of the outer peripheral surface constituting a light-transmitting surface for transmitting light, wherein the fixing member comprises: a main fixing member, which is capable of supporting the outer peripheral surface of the optical device; an auxiliary fixing member, which is removable relative to the main fixing member and is capable of supporting the outer peripheral surface of the optical device; and a connecting member, which is capable of connecting the auxiliary fixing member to the main fixing member, the main fixing member comprising: a base, which is fixed to the mounting surface; a first fixing portion, which has a shape extending from the base toward one side in the circumferential direction of the optical device; and a second fixing portion, which has a shape extending from the base toward the other side in the circumferential direction of the optical device, the first fixing portion comprising: a first supporting portion, which has a shape extending along the outer peripheral surface of the optical device and supports a portion of the outer peripheral surface of the optical device; and a first flange, which is connected to the first supporting portion and is capable of connecting the auxiliary fixing portion. The component, the second fixing part includes: a second supporting part, which has a shape extending along the outer peripheral surface of the optical device and supports another part of the outer peripheral surface of the optical device; and a second flange, which is connected to the second supporting part and can be connected to the auxiliary fixing component, the auxiliary fixing component has: an auxiliary supporting part, which has a shape extending along the outer peripheral surface of the optical device and supports a part of the outer peripheral surface of the optical device; and an auxiliary flange, which is connected to the auxiliary supporting part and can be selectively connected to any one of the first flange and the second flange, the connecting component can connect the first flange and the auxiliary flange, or the second flange and the auxiliary flange together, the sum of the length of the first supporting part in the surface direction along the outer peripheral surface of the optical device, the length of the second supporting part in the surface direction and the length of the auxiliary supporting part in the surface direction is less than the length of the part of the outer peripheral surface of the optical device other than the light-transmitting surface in the circumferential direction of the optical device.

[0012] In the fixture, the auxiliary flange of the auxiliary fixing member can be connected to any of the first flange and the second flange through the connecting member. Therefore, for example, by connecting the auxiliary flange to the first flange, the optical device can be fixed to the mounting surface without blocking the light passing through the light-transmitting surface in a posture in which the light passing through the light-transmitting surface is perpendicular to the mounting surface. Similarly, by connecting the auxiliary flange to the second flange, the optical device can be fixed to the mounting surface without blocking the light passing through the light-transmitting surface in a posture in which the light passing through the light-transmitting surface is parallel to the mounting surface.

[0013] Furthermore, the sum of the length of the first supporting portion in the creeping direction and the length of the auxiliary supporting portion in the creeping direction may be equal to the length of the second supporting portion in the creeping direction.

[0014] Furthermore, the first flange and the second flange may be arranged on the same plane, and may be arranged on a plane passing through a central axis of the optical device in a state of being supported by the first supporting portion, the second supporting portion, and the auxiliary supporting portion.

[0015] In addition, the connecting member may include a fastening member capable of fastening the first flange and the auxiliary flange, or the second flange and the auxiliary flange together, the fastening member including a shaft portion, the first flange being provided with a first insertion hole capable of inserting the shaft portion, the second flange being provided with a second insertion hole capable of inserting the shaft portion, and the auxiliary flange being provided with a insertion hole capable of inserting the shaft portion. In this case, it is preferred that the length of the insertion hole in the radial direction of the optical device in a state supported by the first supporting portion, the second supporting portion, and the auxiliary supporting portion is greater than the outer diameter of the shaft portion.

[0016] In this way, the connection position of the auxiliary flange with respect to the first flange or the second flange in the radial direction can be adjusted, and therefore the pressing force of the auxiliary support portion on the optical device can be adjusted.

[0017] Furthermore, a buffer member may be further provided, the buffer member being arranged on the inner peripheral surface of the first supporting portion, the inner peripheral surface of the second supporting portion, and the inner peripheral surface of the auxiliary supporting portion to mitigate impact on the optical device.

[0018] In this embodiment, damage to the outer peripheral surface of the optical device is suppressed.

[0019] Effects of the Invention

[0020] According to the present invention, a fixture can be provided that can fix an optical device to a mounting surface without blocking light passing through a light-transmitting surface in any of a posture in which the light passing through the light-transmitting surface is perpendicular to the mounting surface or in a posture in which the light passing through the light-transmitting surface is parallel to the mounting surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a perspective view showing a state where an optical device is supported in a vertical posture by the fixing device according to the first embodiment of the present invention.

[0022] Figure 2 This is a perspective view showing a state where the optical device is supported in a parallel posture by a fixing member.

[0023] Figure 3 It is a three-dimensional diagram of the fixing part.

[0024] Figure 4 is from Figure 3 The fixing member is shown in a perspective view with the connecting parts removed.

[0025] Figure 5 It is a three-dimensional diagram of the fixing part.

[0026] Figure 6 is Figure 1 A cross-sectional view of the optical device and the fixing member at a plane passing through the fixing member.

[0027] Figure 7 is Figure 2 A cross-sectional view of the optical device and the fixing member at a plane passing through the fixing member.

[0028] Figure 8 It is a perspective view showing a modified example of the fixing tool.

[0029] Fig. 9 It is a perspective view showing a modified example of the fixing tool.

[0030] Fig.10 It is a perspective view of a fixing tool according to a second embodiment of the present invention.

[0031] Fig.11 yes Fig.10 A perspective view of the fixing member shown. DETAILED DESCRIPTION

[0032] Embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings referred to below, the same or corresponding components are denoted by the same reference numerals.

[0033] (First embodiment)

[0034] Figure 1 This is a perspective view showing a state where an optical device is supported in a vertical posture by the fixing device according to the first embodiment of the present invention. Figure 2 This is a perspective view showing a state where the optical device is supported in a horizontal posture by a fixing member.

[0035] Vertical posture ( Figure 1 and Figure 6 The posture shown in FIG. 1 is that light emitted from the optical device 1 or light received by the optical device 1 is relative to the mounting surface 2 (refer to FIG. 1 ). Figure 6 )Vertical posture. Horizontal posture ( Figure 2 and Figure 7 The posture shown in FIG. 1 is a posture in which light emitted from the optical device 1 or light received by the optical device 1 is in contact with the mounting surface 2 (see FIG. 1 ). Figure 7 )Parallel posture.

[0036] In this embodiment, the optical device 1 has a cylindrical outer peripheral surface S, and a portion of the outer peripheral surface S constitutes a light-transmitting surface Sa through which light is transmitted. Figure 6 as well as Figure 7 In FIG. 1 , the range of light that can pass through the light-transmitting surface Sa is indicated by a single-dot chain line. The angle formed by this range is, for example, 120 degrees. In this embodiment, a multi-axis photoelectric sensor is used as the optical device 1. However, the optical device 1 is not limited to a multi-axis photoelectric sensor.

[0037] The fixing member 10 is used to fix the optical device 1 to the mounting surface 2 (refer to Figure 6 as well as Figure 7 The fixing member 10 can be applied to all optical devices 1, such as laser scanners, devices that put single-axis photoelectric sensors into cylinders to correspond to food production lines, in addition to multi-axis photoelectric sensors. Figure 1 to Figure 7 As shown, the fixing member 10 comprises a main fixing component 100 , an auxiliary fixing component 200 and a connecting component 300 .

[0038] The main fixing member 100 is a member capable of supporting the outer peripheral surface S of the optical device 1. The main fixing member 100 includes a base 110, a first fixing portion 120, and a second fixing portion 130.

[0039] The base 110 is a portion fixed to the mounting surface 2 . The base 110 is formed in a flat plate shape. The base 110 includes a first base portion 112 and a second base portion 114 .

[0040] The first base portion 112 has a shape extending in one direction.

[0041] The second base 114 is connected to one end of the first base 112 in the length direction of the first base 112. The second base 114 has a shape extending in a direction perpendicular to both the length direction of the first base 112 and the thickness direction of the first base 112. The surface of the second base 114 is formed to be flush with the surface of the first base 112.

[0042] The first fixing portion 120 has a shape extending from the base 110 toward one side in the circumferential direction of the optical device 1. The first fixing portion 120 has a first supporting portion 122, a first flange 124, and a first connecting portion 126.

[0043] The first support portion 122 is a portion that supports a portion of the outer peripheral surface S of the optical device 1. The first support portion 122 has a shape extending along the outer peripheral surface S of the optical device 1. In the present embodiment, the first support portion 122 is formed in an arc shape along the outer peripheral surface S.

[0044] The first flange 124 is connected to the first support portion 122. Specifically, the first flange 124 has a shape extending from one end of a circle including the first support portion 122 in the circumferential direction to the outside of the circle in the radial direction. The first flange 124 is formed in a flat plate shape. The first flange 124 can be connected to the auxiliary fixing member 200. Figure 4 , Figure 5 as well as Figure 7 As shown, the first flange 124 is provided with a first insertion hole 124h for inserting the connection member 300 therethrough.

[0045] The first connecting portion 126 connects the first base portion 112 and the first supporting portion 122. The first connecting portion 126 has a direction perpendicular to both the long side direction of the first base portion 112 and the thickness direction of the first base portion 112 ( Figure 6 as well as Figure 7 on one side ( Figure 6 as well as Figure 7 The shape in which the end portion (on the right side in the figure) stands upright.

[0046] The second fixing portion 130 has a shape extending from the base 110 toward the other side in the circumferential direction of the optical device 1. The second fixing portion 130 has a second supporting portion 132, a second flange 134, and a second connecting portion 136.

[0047] The second support portion 132 is a portion that supports a portion of the outer peripheral surface S of the optical device 1. The second support portion 132 has a shape extending along the outer peripheral surface S of the optical device 1. In the present embodiment, the second support portion 132 is formed in an arc shape along the outer peripheral surface S. The length of the second support portion 132 in the circumferential direction of the circle including the second support portion 132 (along the surface direction of the outer peripheral surface S of the optical device 1) is greater than the length of the first support portion 122 in the surface direction.

[0048] The second flange 134 is connected to the second support portion 132. Specifically, the second flange 134 has a shape extending from an end portion on one side of the circumferential direction (the surface direction) of a circle including the second support portion 132 in the second support portion 132 to the outside in the radial direction of the circle. The second flange 134 is formed in a flat plate shape. The second flange 134 can be connected to the auxiliary fixing member 200. Figure 6 and Figure 7 As shown in FIG. 1 , the second flange 134 and the first flange 124 are arranged on the same plane. Figure 3 , Figure 4 as well as Figure 6 As shown, the second flange 134 is provided with a second insertion hole 134h for inserting the connection member 300 therethrough.

[0049] The second connecting portion 136 connects the first base portion 112 and the second supporting portion 132. The second connecting portion 136 has a second side ( Figure 6 as well as Figure 7 The shape in which the end portion (on the left side in the figure) stands upright.

[0050] The auxiliary fixing member 200 is attachable to and detachable from the main fixing member 100 . The auxiliary fixing member 200 can support a portion of the outer peripheral surface S of the optical device 1 . The auxiliary fixing member 200 includes an auxiliary support portion 210 and an auxiliary flange 220 .

[0051] The auxiliary support portion 210 is a portion that supports a portion of the outer peripheral surface S of the optical device 1. The auxiliary support portion 210 has a shape extending along the outer peripheral surface S of the optical device 1. In the present embodiment, the auxiliary support portion 210 is formed in an arc shape along the outer peripheral surface S.

[0052] like Figure 6 As shown, the sum of the length of the first supporting portion 122 in the surface direction and the length of the auxiliary supporting portion 210 in the surface direction is equal to the length of the second supporting portion 132 in the surface direction.

[0053] like Figure 6 as well as Figure 7 As shown, the sum of the length of the first support portion 122 in the surface direction, the length of the second support portion 132 in the surface direction, and the length of the auxiliary support portion 210 in the surface direction is less than the length of the portion other than the light-transmitting surface Sa in the outer peripheral surface S of the optical device 1 in the circumferential direction of the optical device 1.

[0054] like Figure 6 As shown, the first flange 124 and the second flange 134 are arranged on the same plane, and are arranged on a plane P passing through the central axis A of the optical device 1 in a state supported by the first support portion 122 , the second support portion 132 , and the auxiliary support portion 210 .

[0055] In this embodiment, the plane P is aligned with a straight line L (see Figure 6 ) is set to 55 degrees.

[0056] The auxiliary flange 220 is connected to the auxiliary support portion 210. Specifically, the auxiliary flange 220 has a shape extending from an end portion of one side along the surface direction of the auxiliary support portion 210 to the radial outside of the circle including the auxiliary support portion 210. The auxiliary flange 220 is formed in a flat plate shape. The auxiliary flange 220 can be selectively connected to any one of the first flange 124 and the second flange 134.

[0057] The auxiliary flange 220 is provided with a through hole 220h for inserting the connecting member 300. Figure 4 As shown, the through hole 220h is set to be long in the radial direction of the circle including the auxiliary support portion 210 (the optical device 1 in the state supported by the first support portion 122, the second support portion 132 and the auxiliary support portion 210). The length of the through hole 220h in the radial direction is greater than the length of the first through hole 124h in the direction. The length of the through hole 220h in the radial direction is greater than the length of the second through hole 134h in the direction.

[0058] The connecting member 300 can connect the first flange 124 and the auxiliary flange 220, or the second flange 134 and the auxiliary flange 220. In the present embodiment, a fastening member such as a bolt is used as the connecting member 300. The fastening member has a shaft portion 310 that can be inserted into the first through hole 124h, the second through hole 134h, and the through hole 220h. The length of the through hole 220h in the radial direction is greater than the outer diameter of the shaft portion 310.

[0059] like Figure 8 as well as Fig. 9 As shown, the fixing member 10 may also have a buffer component 400. The buffer component 400 is a component that mitigates the impact on the optical device 1 and the vibration of the optical device 1 relative to the first support part 122, the second support part 132 and the auxiliary support part 210. The buffer component 400 is arranged on the inner circumference of the first support part 122, the inner circumference of the second support part 132 and the inner circumference of the auxiliary support part 210. That is, the buffer component 400 is sandwiched between the inner circumference of the first support part 122 and the outer circumference S of the optical device 1, between the inner circumference of the second support part 132 and the outer circumference S of the optical device 1, and between the inner circumference of the auxiliary support part 210 and the outer circumference S of the optical device 1. The buffer component 400 is made of rubber, for example. The buffer component 400 is formed in a sheet shape. In addition, the buffer component 400 may also be omitted.

[0060] Next, a process of fixing the optical device 1 in a vertical posture with respect to the mounting surface 2 using the fixing tool 10 will be described.

[0061] The process includes: a first step of: connecting the central part of the light-transmitting surface Sa and the central axis A along a straight line L (refer to Figure 6 ) is placed on the first support portion 122 and the second support portion 132 in a manner such that the optical device 1 is placed perpendicular to the base 110, as shown in FIG. Figure 3 and Figure 6As shown, the auxiliary flange 220 is connected to the first flange 124 by the connecting member 300; and in the second step, the base 110 is fixed to the mounting surface 2 by a fastening member such as a bolt. In addition, the first step and the second step can be performed in this order, or in the reverse order, or at the same time. When the optical device 1 is fixed in a vertical position, as shown in FIG. Figure 1 and Figure 6 As shown, it is possible to prevent the light passing through the light-transmitting surface Sa from being blocked by the fixing member 10 .

[0062] Next, a process of fixing the optical device 1 in a horizontal posture with respect to the mounting surface 2 using the fixing tool 10 will be described.

[0063] The process includes: a third process of placing the optical device 1 on the first supporting part 122 and the second supporting part 132 in a manner such that a straight line connecting the central part of the light-transmitting surface Sa and the central axis A is parallel to the base 110, as shown in FIG. Figure 5 and Figure 7 As shown, the auxiliary flange 220 is connected to the second flange 134 by the connecting member 300; and in the fourth step, the base 110 is fixed to the mounting surface 2 by a fastening member such as a bolt. In addition, the third step and the fourth step can be performed in this order, or in the reverse order, or at the same time. When the optical device 1 is fixed in a horizontal position, as shown in FIG. Figure 2 and Figure 7 As shown, it is possible to prevent the light passing through the light-transmitting surface Sa from being blocked by the fixing member 10 .

[0064] As described above, in the fixture 10 of the present embodiment, the auxiliary flange 220 of the auxiliary fixing member 200 can be connected to any one of the first flange 124 and the second flange 134 through the connecting member 300. Therefore, for example, by connecting the auxiliary flange 220 to the first flange 124, the optical device 1 can be fixed to the mounting surface 2 without blocking the light passing through the light-transmitting surface Sa in a posture in which the light passing through the light-transmitting surface Sa is perpendicular to the mounting surface 2. Similarly, by connecting the auxiliary flange 220 to the second flange 134, the optical device 1 can be fixed to the mounting surface 2 without blocking the light passing through the light-transmitting surface Sa in a posture in which the light passing through the light-transmitting surface Sa is parallel to the mounting surface 2.

[0065] Furthermore, since the length of the through hole 220h in the radial direction is greater than the outer diameter of the shaft portion 310, the radial connection position of the auxiliary flange 220 with respect to the first flange 124 or the second flange 134 can be adjusted. Therefore, the pressing force of the auxiliary support portion 210 on the optical device 1 can be adjusted.

[0066] Furthermore, since the fixture 10 includes the buffer member 400 , it is possible to suppress damage to the outer peripheral surface S of the optical device 1 .

[0067] (Second embodiment)

[0068] Next, refer to Fig.10 as well as Fig.11 , a fixing member 10 according to a second embodiment of the present invention will be described. In the second embodiment, only the parts different from the first embodiment will be described, and the description of the same structure, function, and effect as the first embodiment will not be repeated.

[0069] In this embodiment, each of the first supporting portion 122 , the second supporting portion 132 , and the auxiliary supporting portion 210 has at least one planar portion.

[0070] The first support portion 122 is composed of a single plane portion 122a. The plane portion 122a is perpendicular to the radial direction of the optical device 1. The buffer member 400 is attached to the plane portion 122a.

[0071] The second support portion 132 has three planar portions 132a arranged in the longitudinal direction. Each planar portion 132a is perpendicular to the radial direction of the optical device 1. Buffer members 400 are attached to the planar portions 132a at both ends in the longitudinal direction of the three planar portions 132a.

[0072] The auxiliary support portion 210 has two planar portions 210a arranged in the planar direction. Each planar portion 210a is perpendicular to the radial direction of the optical device 1. A buffer member 400 is attached to the planar portion 210a arranged on the side away from the auxiliary flange 220 of the two planar portions 210a.

[0073] The buffer member 400 is attached to the planar portion in a state of penetrating through each planar portion. The buffer member 400 is formed in a cylindrical or columnar shape.

[0074] The embodiments disclosed this time should be considered in all respects as illustrative rather than restrictive. The scope of the present invention is indicated by the claims rather than the description of the embodiments above, and all modifications within the meaning and scope equivalent to the claims are also included.

[0075] For example, the angle formed by the plane P and the straight line L may be set to an angle different from 55 degrees.

[0076] In addition, the length of the first support portion 122 in the surface direction, the length of the second support portion 132 in the surface direction, and the length of the auxiliary support portion 210 in the surface direction can be arbitrarily set within a range in which the sum of the lengths is less than the length of the portion other than the light-transmitting surface Sa in the outer peripheral surface S of the optical device 1 in the circumferential direction of the optical device 1. For example, the sum of the length of the first support portion 122 in the surface direction and the length of the auxiliary support portion 210 in the surface direction may be different from the length of the second support portion 132 in the surface direction.

[0077] <Note>

[0078] The characteristic structure of the fixing member 10 of the above-mentioned embodiment is summarized as follows.

[0079] [Structure 1]

[0080] A fixing member (10) is used to fix an optical device (1) to a mounting surface (2), wherein the optical device has a cylindrical outer peripheral surface (S), and a portion of the outer peripheral surface constitutes a light-transmitting surface (Sa) for transmitting light, wherein the fixing member (10) comprises:

[0081] A main fixing component (100) capable of supporting the outer peripheral surface of the optical device;

[0082] an auxiliary fixing component (200) which can be installed or removed relative to the main fixing component and can support the outer peripheral surface of the optical device; and

[0083] a connecting member (300) capable of connecting the auxiliary fixing member to the main fixing member,

[0084] The main fixing component (100) comprises:

[0085] A base (110) fixed to the mounting surface;

[0086] a first fixing portion (120) having a shape extending from the base toward one side in the circumferential direction of the optical device; and

[0087] The second fixing portion (130) has a shape extending from the base toward the other side in the circumferential direction of the optical device.

[0088] The first fixing portion (120) comprises:

[0089] a first supporting portion (122) having a shape extending along the outer peripheral surface of the optical device and supporting a portion of the outer peripheral surface of the optical device; and

[0090] a first flange (124) connected to the first support portion and capable of connecting the auxiliary fixing member,

[0091] The second fixing portion (130) comprises:

[0092] a second supporting portion (132) having a shape extending along the outer peripheral surface of the optical device and supporting another portion of the outer peripheral surface of the optical device; and

[0093] a second flange (134) connected to the second supporting portion and capable of connecting the auxiliary fixing member,

[0094] The auxiliary fixing component (200) comprises:

[0095] an auxiliary support portion (210) having a shape extending along the outer peripheral surface of the optical device and supporting a portion of the outer peripheral surface of the optical device; and

[0096] an auxiliary flange (220) connected to the auxiliary support portion and capable of being selectively connected to any one of the first flange and the second flange,

[0097] The connecting member (300) can connect the first flange and the auxiliary flange, or the second flange and the auxiliary flange together.

[0098] The sum of the length of the first support portion (122) in the surface direction along the outer peripheral surface (S) of the optical device (1), the length of the second support portion (132) in the surface direction, and the length of the auxiliary support portion (210) in the surface direction is less than the length of the portion of the outer peripheral surface of the optical device other than the light-transmitting surface (Sa) in the circumferential direction of the optical device (1).

[0099] [Structure 2]

[0100] In the fixing member described in structure 1,

[0101] The sum of the length of the first supporting portion (122) in the surface direction and the length of the auxiliary supporting portion (210) in the surface direction is equal to the length of the second supporting portion (132) in the surface direction.

[0102] [Structure 3]

[0103] In the fixing member described in structure 1 or 2,

[0104] The first flange (124) and the second flange (134) are arranged on the same plane, and are arranged on a plane (P) passing through the central axis (A) of the optical device (1) in a state supported by the first supporting part (122), the second supporting part (132) and the auxiliary supporting part (210).

[0105] [Structure 4]

[0106] In the fixing member described in any one of structures 1 to 3,

[0107] The connecting member (300) has a fastening member capable of fastening the first flange and the auxiliary flange, or the second flange and the auxiliary flange together.

[0108] The fastening member has a shaft portion (310),

[0109] The first flange (124) is provided with a first insertion hole (124h) through which the shaft portion can be inserted.

[0110] The second flange (134) is provided with a second insertion hole (134h) through which the shaft portion can be inserted.

[0111] The auxiliary flange (220) is provided with a through hole (220h) through which the shaft portion can be inserted.

[0112] The length of the through hole (220h) in the radial direction of the optical device (1) in a state supported by the first support portion (122), the second support portion (132) and the auxiliary support portion (210) is greater than the outer diameter of the shaft portion (310).

[0113] [Structure 5]

[0114] In the fixing member described in any one of structures 1 to 4,

[0115] A buffer component (400) is also provided, and the buffer component (400) is arranged on the inner peripheral surface of the first support part (122), the inner peripheral surface of the second support part (132) and the inner peripheral surface of the auxiliary support part (210) to alleviate the impact on the optical device.

[0116] Description of symbols

[0117] 1: optical device; 2: mounting surface; 10: fixing member; 100: main fixing member; 110: base; 112: first base; 114: second base; 120: first fixing member; 122: first supporting member; 122a: plane portion; 124: first flange; 124h: first through hole; 126: first connecting member; 130: second fixing member; 132: second supporting member; 132a: plane portion; 134: second flange; 134h: second through hole; 136: second connecting member; 200: auxiliary fixing member; 210: auxiliary supporting member; 210a: plane portion; 220: auxiliary flange; 220h: through hole; 300: connecting member; 310: shaft portion; 400: buffer member; A: center axis; S: outer peripheral surface; Sa: light-transmitting surface.

Claims

1. A fixture for fixing an optical device to a mounting surface, wherein the optical device has a cylindrical outer peripheral surface, and a portion of the outer peripheral surface constitutes a light-transmitting surface for transmitting light, wherein: The fixing member has: a main fixing member capable of supporting the outer peripheral surface of the optical device; an auxiliary fixing member, which can be installed and removed relative to the main fixing member and can support the outer peripheral surface of the optical device; as well as a connecting member capable of connecting the auxiliary fixing member to the main fixing member, The main fixing part has: A base, which is fixed to the mounting surface; A first fixing portion having a shape extending from the base toward one side in the circumferential direction of the optical device; as well as The second fixing portion has a shape extending from the base toward the other side in the circumferential direction of the optical device, The first fixing portion includes: a first supporting portion having a shape extending along the outer peripheral surface of the optical device and supporting a portion of the outer peripheral surface of the optical device; and a first flange connected to the first support portion and capable of connecting the auxiliary fixing member, The second fixing portion includes: a second supporting portion having a shape extending along the outer peripheral surface of the optical device and supporting another portion of the outer peripheral surface of the optical device; and a second flange connected to the second support portion and capable of connecting the auxiliary fixing member, The auxiliary fixing component comprises: an auxiliary support portion having a shape extending along the outer peripheral surface of the optical device and supporting a portion of the outer peripheral surface of the optical device; as well as an auxiliary flange connected to the auxiliary support portion and capable of being selectively connected to any one of the first flange and the second flange, The connecting member can connect the first flange and the auxiliary flange, or the second flange and the auxiliary flange together. The sum of the length of the first supporting portion in the surface direction along the outer peripheral surface of the optical device, the length of the second supporting portion in the surface direction, and the length of the auxiliary supporting portion in the surface direction is less than the length of the portion other than the light-transmitting surface in the outer peripheral surface of the optical device in the circumferential direction of the optical device.

2. The fixing member according to claim 1, wherein: The sum of the length of the first supporting portion in the surface direction and the length of the auxiliary supporting portion in the surface direction is equal to the length of the second supporting portion in the surface direction.

3. The fixing member according to claim 1 or 2, wherein: The first flange and the second flange are arranged on the same plane, and are arranged on a plane passing through a central axis of the optical device in a state of being supported by the first supporting portion, the second supporting portion, and the auxiliary supporting portion.

4. The fixing member according to claim 1, wherein: The connecting member includes a fastening member capable of fastening the first flange and the auxiliary flange, or the second flange and the auxiliary flange together. The fastening member has a shaft portion, The first flange is provided with a first insertion hole through which the shaft portion can be inserted. The second flange is provided with a second insertion hole through which the shaft portion can be inserted. The auxiliary flange is provided with a through hole through which the shaft portion can be inserted. A length of the insertion hole in a radial direction of the optical device in a state where the optical device is supported by the first supporting portion, the second supporting portion, and the auxiliary supporting portion is larger than an outer diameter of the shaft portion.

5. The fixing member according to claim 1, wherein: The fixture further includes a buffer member, which is disposed on the inner peripheral surface of the first support portion, the inner peripheral surface of the second support portion, and the inner peripheral surface of the auxiliary support portion to mitigate impact on the optical device.

Images