Fixing device and driving device

Abstract

To provide a fixing device which has a retaining function and is easily inserted into an insertion hole.SOLUTION: A fixing device includes: a first member including a shaft part extending in a first direction and a flange part adjacent to the shaft part in the first direction; and a second member provided with a hole part into which the shaft part is inserted. A diameter of at least a part of the flange part is larger than diameters of the shaft part and the hole portion, and a groove along the first direction is provided in the flange part. The groove forms an opening from a center part to an outer peripheral part of the flange part in a cross section perpendicular to the first direction.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a fixing device and a driving device.

Background Art

[0002] Conventionally, after inserting an insertion shaft into an insertion hole formed in a housing, a retaining structure that does not easily come out of the housing is known. For example, there is a retaining structure in which a flange portion having a diameter larger than that of the insertion hole is provided on the insertion shaft. In this structure, after the insertion shaft is inserted into the insertion hole, the flange portion is locked to the housing and functions as a retaining means. However, since the flange portion is larger than the insertion hole and it becomes difficult to insert into the insertion hole, deteriorating workability, a retaining structure that is easy to insert is required.

[0003] In Patent Document 1, an insertion is facilitated by providing a slit that opens during insertion at the tip of the insertion shaft. Further, as a method other than providing a flange portion as a retaining structure, Patent Document 2 discloses a method in which a male screw is provided on the insertion shaft and a female screw that engages with the male screw is provided in the insertion hole.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the prior art disclosed in the above-mentioned Patent Document 1, when the flange portion passes through the insertion hole, it is necessary to insert it while compressing the flange portion except in the direction in which the slit opens. Therefore, particularly when the insertion hole is deep, the area receiving the reaction force against the compression of the flange portion becomes large, and the workability deteriorates. Further, in the prior art disclosed in Patent Document 2, since the screw portion is rotated and inserted, when the insertion hole is deep, the rotational operation for screwing increases, and the workability deteriorates.

[0006] Therefore, an object of the present invention is to provide a fixing device having a retaining function and being easy to insert into an insertion hole.

Means for Solving the Problems

[0007] In order to achieve the above object, a fixing device according to one aspect of the present invention includes a first member including a shaft portion extending in a first direction and a flange portion adjacent to the shaft portion in the first direction, and a second member provided with a hole portion into which the shaft portion is inserted, at least a part of the diameter of the flange portion being larger than the diameters of the shaft portion and the hole portion, a groove being provided in the flange portion along the first direction, the groove forming an opening from the central portion to the outer peripheral portion of the flange portion in a cross section perpendicular to the first direction.

Effects of the Invention

[0008] According to the present invention, it is possible to provide a fixing device having a retaining function and being easy to insert into an insertion hole.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Best Mode for Carrying Out the Invention

[0010] Hereinafter, with reference to the accompanying drawings, embodiments for carrying out the present invention will be described in detail. The embodiments described below are examples of means for realizing the present invention, and should be appropriately modified or changed according to the configuration and various conditions of the apparatus to which the present invention is applied. The present invention is not limited to the following embodiments. Also, in the present embodiment, the Z-axis is taken parallel to the direction in which the flange portion 3 is inserted into the insertion hole 5, and the X-axis and the Y-axis are taken in a plane perpendicular to the Z-axis such that the X-axis and the Y-axis are orthogonal to each other.

[0011] <Embodiment 1> Hereinafter, with reference to FIGS. 1 to 3, the retaining structure 20 in Embodiment 1 will be described. FIG. 1 is an example of a perspective view of the retaining structure 20 according to Embodiment 1. FIG. 2 is a view of the connector cover 30 as seen from the insertion shaft 2 side. FIG. 3 is a view of the connector cover 30 as seen from the direction of arrow B in FIG. 2.

[0012] The retaining structure 20 in this embodiment is composed of a connector cover 30 and a housing (second member) 1. The connector cover 30 includes an insertion shaft (shaft portion) 2 extending in the Z-axis direction (first direction) and a flange portion 3 adjacent to the insertion shaft 2 in the first direction. Further, the connector cover 30 is formed such that the insertion shaft 2, the flange portion 3, and the connector cover main body (cover member) 7 are integrated. That is, the connector cover 30, the insertion shaft 2, and the flange portion 3 are integrally formed. In this embodiment, the diameter of at least a part of the flange portion 3 is formed larger than the diameters of the insertion shaft 2 and an insertion hole 5 described later.

[0013] In addition, the connector cover 30 is composed of an elastically deformable member. The connector cover 30 is composed of, for example, an elastic member such as rubber. In this embodiment, the flange portion 3 and the insertion shaft 2 function as the first member. Further, the connector cover 30 and the housing (second member) 1 also function as a fixing device.

[0014] When the insertion shaft 2 is viewed in a plane (cross-section perpendicular to the first direction) perpendicular to the insertion center axis A1 direction (first direction, Z-axis direction) of the flange portion 3, it is circular. The flange portion 3 is circular when viewed in a plane perpendicular to the insertion center axis A1 direction of the flange portion 3. Further, as shown in FIG. 3, the flange portion 3 is provided with a taper so as to have a smaller diameter from the large-diameter side end surface L1 of the flange portion 3 toward the tip-side end surface L2 of the flange portion 3. Hereinafter, the large-diameter portion at the end surface L1 of the flange portion 3 is referred to as a first circular portion, and the small-diameter portion at the end surface L2 of the flange portion 3 is referred to as a second circular portion. As shown in FIG. 3 and the like, the first circular portion of the flange portion 3 has a larger diameter than the second circular portion of the flange portion 3.

[0015] A groove 4 is provided in the flange portion 3 along the first direction (Z-axis direction). As shown in FIG. 2, the groove 4 forms an opening from the central portion (insertion shaft center A1) of the flange portion 3 to the outer peripheral portion (circumferential direction).

[0016] In this embodiment, when viewed in a cross-section perpendicular to the insertion central axis A1 direction of the flange portion 3, the groove 4 has an opening formed at only one location. In this way, the groove provided in the flange portion 3 is only at one location and only one opening is formed. That is, in this embodiment, the groove 4 is configured so that two or more openings are not formed. And, when viewed in a cross-section perpendicular to the insertion central axis A1 direction of the flange portion 3, the groove 4 is formed in the flange portion 3 so that there is only one opening and it does not become a through groove.

[0017] In this embodiment, the groove 4 is configured to have a U shape when viewed in a cross-section perpendicular to the insertion central axis A1 direction of the flange portion 3. Also, as shown in FIG. 1 and the like, the groove 4 is formed from the first circular portion to the second circular portion along the first direction.

[0018] The housing 1 is provided with an insertion hole 5 and a terminal exposure hole 6. The insertion hole 5 is a hole portion into which the insertion shaft 2 of the connector cover 30 is inserted. The terminal exposure hole 6 is a hole portion through which a female connector (not shown) is exposed. Incidentally, the diameter of the first circular portion of the flange portion 3 is formed larger than the diameter of the insertion hole 5 of the housing 1, and the diameter of the second circular portion of the flange portion 3 is formed smaller than the diameter of the insertion hole 5 of the housing 1. Incidentally, the diameter of the second circular portion of the flange portion 3 may be made equal to or larger than the diameter of the insertion hole 5 of the housing 1.

[0019] The distance in the depth direction (Z-axis direction) of the insertion hole 5 is longer than the distance from the large-diameter side end surface L1 (first circular portion) of the flange portion 3 to the tip-side end surface L2 (second circular portion) of the flange portion. That is, the distance in the depth direction of the insertion hole 5 is longer than the distance from the first circular portion to the second circular portion in the insertion direction (Z-axis direction) of the flange portion 3 into the insertion hole 5. Also, when the insertion shaft 2 of the connector cover 30 is inserted into the housing 1, the connector cover 30 is held in a rotatable state with respect to the housing 1.

[0020] When a female connector (not shown) is exposed from the terminal exposure hole 6 (when using the female connector), it can be connected to a male connector (not shown). The connector cover 30 has a connector cover body 7 configured to cover the female connector. The connector cover body 7 is disposed on the extension line of the groove width center line of the groove 4 (in the X-axis direction in the figure). When the female connector is not used, the connector cover body 7 is inserted (press-fitted) into the terminal exposure hole 6 to protect the female connector and hold the connector cover 30 so that it does not rotate with respect to the housing 1 about the insertion axis center A1.

[0021] Next, the mechanism of the retaining structure 20 will be described with reference to FIGS. 4 and 5. FIG. 4 is a view of the process of inserting the insertion shaft 2 into the insertion hole 5 as seen from the direction of arrow C in FIG. 2. Here, FIG. 4(A) shows an example of the state when the flange portion 3 passes through the insertion hole 5. Further, FIG. 4(B) is a view showing an example of the state at the moment when a force is applied in the direction in which the insertion shaft 2 comes out after the passage of the flange portion 3 is completed.

[0022] FIG. 5 is a cross-sectional view showing the A-A cross-section and the B-B cross-section in FIG. 4. FIG. 5(A) is the A-A cross-sectional view in FIG. 4. FIG. 5(B) is the B-B cross-sectional view in FIG. 4. The two-dot chain line shown in FIG. 5 indicates the original shape 8 of the flange portion 3 before deformation. That is, the original shape 8 shows the shape of the flange portion 3 before being inserted into the insertion hole 5.

[0023] In the present embodiment, when the connector cover 30 is inserted into the insertion hole 5, the second circular portion of the flange portion 3 that is continuously connected on the first circular portion and the taper first contacts the insertion hole 5. That is, when the insertion shaft 2 is inserted into the insertion hole 5, the flange portion 3 and the insertion shaft 2 are inserted in this order. Specifically, they are inserted into the insertion hole 5 in the order of the second circular portion, the first circular portion, and the insertion shaft 2. Note that the diameter of the insertion shaft 2 is configured to be smaller than the diameter of the insertion hole 5.

[0024] Here, when the insertion shaft 2 is inserted into the insertion hole 5, as the flange portion 3 passes through the insertion hole 5, the flange portion 3 deforms along the shape of the insertion hole 5 as shown in Fig. 4(A). As the deformation at this time, the flange portion 3 deforms toward the groove 4 as shown by the arrow in Fig. 5(A).

[0025] Therefore, by minimizing the deformation of the solid portion of the diagonal line of the groove 4 due to the deformation of the easily deformable portion around the groove 4, the insertion workability is improved.

[0026] On the other hand, when a force in the pulling direction is applied to the insertion shaft 2, the flange portion 3 deforms toward the groove 4 and at the same time the solid portion on the extension line of the groove 4 is pushed out radially outward. As a result, the flange portion 3 deforms into an elliptical shape as shown in Fig. 5(B) when viewed in a cross-section perpendicular to the insertion central axis A1 direction of the flange portion 3. Incidentally, if the insertion direction of the insertion shaft 2 into the insertion hole 5 is the -Z axis direction, the pulling direction is the +Z axis direction.

[0027] When the insertion of the flange portion 3 and the insertion shaft 2 is completed, as shown in Fig. 4(B), the connector cover 30 is locked to the housing 1 and functions as an anti-disengagement means. That is, when the flange portion 3 is inserted into the insertion hole 5 up to the first circular portion, the shape of the deformed flange portion 3 returns to its original state (the shape before being inserted into the insertion hole 5). And since the diameter of the first circular portion is larger than the diameter of the insertion hole 5, even if a force is applied in the arrow direction (pulling direction) in Fig. 4(B), the flange portion 3 does not come out of the insertion hole 5, so the connector cover 30 functions as an anti-disengagement means. When removing the connector cover body 7 from the terminal exposure hole 6, the maximum force in the pulling direction of the insertion shaft 2 is applied to the side of the flange portion 3 close to the connector cover body 7.

[0028] In this embodiment, since the connector cover body 7 is provided on the extension line of the groove width center line of the groove 4, as shown in FIG. 5, the maximum force in the extraction direction can be received at the portion where the contact surface between the flange portion 3 and the housing 1 is large. With the above structure, it functions more effectively as an anti-disconnection mechanism. In addition, by deforming the end point A2 of the first opening and the end point A3 of the second opening in the flange portion shown in FIG. 2 so as to be wound toward the insertion axis center A1, the diameter of the flange portion 3 can be reduced.

[0029] Thereby, during use, it functions as an anti-disconnection mechanism while the connector cover 30 can be intentionally separated from the housing 1. And by configuring as in this embodiment, by inserting the flange portion 3 having the groove 4 integrated with the insertion shaft 2 into the insertion hole 5, an anti-disconnection structure 20 that is not easily detached can be obtained.

[0030] In addition, when separating (pulling out) the connector cover 30 from the insertion hole 5, in a state where the flange portion 3 is deformed toward the groove 4 in the same manner as during insertion, it is inserted into the insertion hole 5 from the first circular portion of the flange portion 3. Then, by passing the insertion hole 5 in a state where the flange portion 3 is deformed, the connector cover 30 can be separated from the insertion hole 5. Note that the shape of the flange portion 3 that was deformed when passing through the insertion hole 5 returns to its original state when pulled out.

[0031] As described above, according to Embodiment 1, a fixing device with an anti-disconnection function and easy insertion into the insertion hole 5 can be provided.

[0032] <Embodiment 2> Hereinafter, with reference to FIGS. 6 and 7, the anti-disconnection structure 202 according to Embodiment 2 will be described. Note that the description of the same components as those in Embodiment 1 will be omitted. That is, in the anti-disconnection structure 202 of Embodiment 2, the description of the same configuration and insertion method as those of the anti-disconnection structure 20 in Embodiment 1 will be omitted.

[0033] FIG. 6 is a perspective view of the anti-disengagement structure 202 according to Embodiment 2. FIG. 7 is a view of the connector cover 302 as seen from the side of the insertion shaft 22. The anti-disengagement structure 202 corresponds to the anti-disengagement structure 20 described in Embodiment 1.

[0034] In the anti-disengagement structure 202 in Embodiment 2, in addition to the configuration of the anti-disengagement structure 20, as shown in FIGS. 6 and 7, a rod-shaped protrusion 9 is provided between the grooves 42 so as to protrude in the opening direction of the groove 42. In other words, on the connector cover 302 in Embodiment 2, a rod-shaped protrusion 9 is formed between the grooves 42 along the first direction so as to protrude in the direction of the opening of the groove 42 (from the central part of the flange portion 32 to the outer peripheral part).

[0035] As shown in FIG. 7, the protrusion 9 extends in parallel with the groove 42 in the circumferential direction of the flange portion 32. Note that since each part of the connector cover 302 other than the protrusion 9 is common to the anti-disengagement structure 20 in Embodiment 1, the description thereof is omitted.

[0036] As shown in FIG. 6, the protrusion 9 preferably has a circular cross-section, but may be, for example, elliptical or polygonal. Also, although one protrusion 9 is provided between the grooves 42 along the first direction in the present embodiment, a plurality of protrusions 9 may be provided, for example.

[0037] Next, with reference to FIGS. 8 to 10, the mechanism of the anti-disengagement structure 202 in Embodiment 2 will be described. FIG. 8 is a view showing the time when the flange portion 32 passes through the insertion hole 52 in the C-C cross-section of FIG. 7. FIG. 9 is a view showing the process of inserting the insertion shaft 22 into the insertion hole 52 in the D-D cross-section of FIG. 7. FIG. 10 is a cross-sectional view of the flange portion 32 when a force is applied in the direction in which the insertion shaft 22 comes off after the passage of the flange portion 32 is completed.

[0038] When inserting the insertion shaft 22 into the insertion hole 52, first, as shown in FIG. 8, the protrusion 9 is deformed from its original position indicated by the two-dot chain line toward the side surface L22 of the tip of the flange portion. The deformation is caused by compressing the circumferential side surface of the flange portion 32 as shown in FIG. 8, and the protrusion 9 is deformed in the direction of the second circular portion in the direction of the center A12 of the insertion shaft of the insertion hole 52.

[0039] In addition, to deform the protrusion 9, a tool, jig, or the user's hand is used for the deformation. When inserting the flange portion 32 into the insertion hole 52, the flange portion 32 is inserted into the insertion hole 52 while holding the protrusion 9 at the position shown in FIG. 8. Here, it is not necessary to deform the protrusion by about 90 degrees as shown in FIG. 8, and it is sufficient to deform it to a position where it can be inserted into the insertion hole 52.

[0040] When the protrusion 9 is inserted into the insertion hole 52 while being held at the position shown in FIG. 8, the protrusion 9 retracts near the center A12 of the insertion shaft where the amount of deformation during insertion is small in the flange portion 32. Therefore, the influence of the protrusion 9 on the compression of the groove 42 when the flange portion 32 passes through the insertion hole 52 becomes extremely small.

[0041] As a result, the flange portion 32 can easily pass through the insertion hole 52 in the same manner as in the first embodiment. On the other hand, when a force in the pulling-out direction is applied to the insertion shaft 22, the flange portion 32 tends to deform toward the groove 42. However, as shown in FIG. 10, the collapse of the groove 42 is suppressed by the protrusion 9, making it difficult for the flange portion 32 to deform.

[0042] As a result, by ensuring the contact surface between the flange portion 32 and the housing 12, the connector cover 30 functions as a retaining means. That is, when the first circular portion of the flange portion 32 is inserted into the insertion hole 52, the shapes of the protrusion 9 and the first circular portion of the flange portion 32 return to their original states (the shapes before being inserted into the insertion hole 52). Then, the protrusion 9 that has returned to its original shape protrudes in the outer circumferential direction beyond the edge of the insertion hole 52, and since the diameter of the first circular portion is larger than the diameter of the insertion hole 5, even if a force is applied in the direction of pulling out the connector cover 30, the flange portion 32 does not come out of the insertion hole 52.

[0043] Furthermore, as shown in FIG. 8, while deforming the protrusion 9 toward the side surface L22 of the tip of the flange portion, the diameter of the flange portion 32 can be reduced by deforming the end point A22 of the first opening and the end point A32 of the second opening so as to be wound toward the insertion axis center A12. As a result, similarly to the first embodiment, it can function as a retaining means during use, and the connector cover 302 can be intentionally separated from the housing 12.

[0044] When separating (pulling out) the connector cover 302 from the insertion hole 52, the flange portion 32 is deformed toward the groove 42 and the protrusion 9 is deformed in the same manner as during insertion, and then inserted into the insertion hole 52 from the second circular portion of the flange portion 32. Thereby, the connector cover 302 can be separated from the insertion hole 52. Note that the shapes of the flange portion 32 and the protrusion 9 that were deformed when passing through the insertion hole 52 return to their original shapes when pulled out.

[0045] Thus, also in the second embodiment, when inserting the connector cover 302 into the insertion hole 52 in the same manner as in the first embodiment, it is inserted in the order of the flange portion 32 and the insertion shaft 22. Specifically, it is inserted into the insertion hole 52 in the order of the second circular portion, the protrusion 9, the first circular portion, and the insertion shaft 22. Note that the diameter of the insertion shaft 22 is configured to be smaller than the diameter of the insertion hole 52.

[0046] As described above, according to the second embodiment, it is possible to provide a fixing device that has a retaining function and is easy to insert into the insertion hole 52, similar to the first embodiment.

[0047] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications and changes are possible within the scope of the gist thereof. For example, it may further include a driving unit that performs at least any one of zoom driving, focus driving, or aperture driving in an imaging device having an optical member, an imaging element, or the like. That is, it may have a driving unit for moving an optical member, and the driving unit and the fixing device in the above embodiment can also function as a driving device.

[0048] The disclosure of this embodiment includes the following configurations.

[0049] (Configuration 1) A first member including a shaft portion extending in a first direction and a flange portion adjacent to the shaft portion in the first direction, and a second member provided with a hole portion into which the shaft portion is inserted, wherein at least a part of the diameter of the flange portion is larger than the diameters of the shaft portion and the hole portion, a groove is provided in the flange portion along the first direction, and the groove forms an opening from the central portion to the outer peripheral portion of the flange portion in a cross section perpendicular to the first direction. A fixing device characterized by this.

[0050] (Configuration 2) The fixing device according to Configuration 1, wherein the groove is not formed as a through groove.

[0051] (Configuration 3) The fixing device according to Configuration 1 or 2, wherein when viewed in a cross section perpendicular to the first direction, an opening is formed at only one location in the groove.

[0052] (Configuration 4) The fixing device according to any one of Configurations 1 to 3, wherein the groove is formed at only one location in the flange portion, and when viewed in a cross section perpendicular to the first direction, no more than one opening is formed.

[0053] (Configuration 5) The fixing device according to any one of Configurations 1 to 4, wherein the groove has a U shape when viewed in a cross section perpendicular to the first direction.

[0054] (Configuration 6) The flange portion includes a first circular portion larger than the diameter of the hole portion and a second circular portion smaller than the diameter of the hole portion that contacts the hole portion before the first circular portion when inserting the shaft portion into the hole portion. The fixing device according to any one of Configurations 1 to 5, characterized in that the first circular portion and the second circular portion are continuously connected on a taper.

[0055] (Configuration 7) The fixing device according to Configuration 6, characterized in that the opening formed in the groove is formed from the first circular portion to the second circular portion along the first direction.

[0056] (Configuration 8) The second member has a terminal exposure hole, The fixing device according to any one of Configurations 1 to 7, characterized in that the first member is integrated with a cover member that covers the terminal exposure hole.

[0057] (Configuration 9) The fixing device according to Configuration 8, characterized in that the cover member is provided on an extension line of the center line of the groove width of the groove.

[0058] (Configuration 10) The fixing device according to any one of Configurations 1 to 9, characterized in that the flange portion has a protrusion formed so as to protrude toward the opening between the grooves.

[0059] (Configuration 11) The flange portion has a protrusion formed in the groove so as to protrude toward the opening, The fixing device according to Configuration 6 or 7, characterized in that it is configured to be inserted into the hole portion in the order of the second circular portion, the protrusion, the first circular portion, and the shaft portion.

[0060] (Configuration 12) The fixing device according to any one of Configurations 1 to 11, characterized in that the length in the depth direction of the hole portion is longer than the length in the insertion direction of the first member.

[0061] (Configuration 13) The fixing device according to any one of Configurations 1 to 12, wherein the first member is inserted into the hole portion in the order of the flange portion and the shaft portion.

[0062] (Configuration 14) The fixing device according to any one of Configurations 1 to 13, wherein the diameter of the shaft portion is smaller than the diameter of the hole portion.

[0063] (Configuration 15) The fixing device according to any one of Configurations 1 to 14, and a drive unit for moving the optical member, characterized by a drive device.

[0064] 1 Housing 2 Insertion shaft 3 Flange portion 4 Groove 5 Insertion hole 20 Anti - detachment structure 30 Connector cover

Claims

1. a first member including a shaft portion extending in a first direction and a flange portion adjacent to the shaft portion in the first direction; a second member provided with a hole portion into which the shaft portion is inserted; and having, at least a part of the diameter of the flange portion is larger than the diameters of the shaft portion and the hole portion, a groove along the first direction is provided in the flange portion, the groove forms an opening from the central portion to the outer peripheral portion of the flange portion in a cross section perpendicular to the first direction, and a fixing device characterized by this.

2. The fixing device according to claim 1, wherein the groove is not formed as a through groove.

3. The fixing device according to claim 1, wherein only one opening is formed when viewed in a cross section perpendicular to the first direction.

4. The fixing device according to claim 1, wherein the groove is formed only at one location on the flange portion, and when viewed in a cross section perpendicular to the first direction, no more than one opening is formed.

5. The fixing device according to claim 1, wherein the groove has a U shape when viewed in a cross section perpendicular to the first direction.

6. The flange portion includes a first circular portion larger than the diameter of the hole portion and a second circular portion smaller than the diameter of the hole portion that contacts the hole portion before the first circular portion when inserting the shaft portion into the hole portion, The fixing device according to claim 1, wherein the first circular portion and the second circular portion are continuously connected on a taper.

7. The fixing device according to claim 6, wherein the opening formed in the groove is formed from the first circular portion to the second circular portion along the first direction.

8. The second member has a terminal exposure hole, The fixing device according to claim 1, wherein the first member is integrated with a cover member that covers the terminal exposure hole.

9. The fixing device according to claim 8, wherein the cover member is provided on an extension line of the center line of the groove width of the groove.

10. The fixing device according to claim 1, wherein the flange portion has a protrusion formed to protrude toward the opening between the grooves.

11. The flange portion has a protrusion formed in the groove so as to protrude toward the opening, The fixing device according to claim 6, wherein the second circular portion, the protrusion, the first circular portion, and the shaft portion are configured to be inserted into the hole portion in this order.

12. The fixing device according to claim 1, wherein the length of the hole portion in the depth direction is longer than the length of the first member in the insertion direction.

13. The fixing device according to claim 1, wherein the first member is inserted into the hole portion in the order of the flange portion and the shaft portion.

14. The fixing device according to claim 1, wherein the diameter of the shaft portion is smaller than the diameter of the hole portion.

15. A driving device, comprising: the fixing device according to any one of claims 1 to 14; and a driving unit for moving the optical member.

Images