JP7593466B2 - Connecting structure and wearable device - Google Patents

Description

The present invention relates to a connection structure and a wearable device.

Conventionally, various connecting structures are known for connecting the device body and band of a wearable device such as a wristwatch, or for connecting multiple links that make up a band. A typical connecting structure is one in which a connecting pin is inserted into a through hole that penetrates the two components to be connected. In this type of connecting structure disclosed in Patent Document 1, the connecting pin is provided with an engagement recess that goes around its circumference, and the tip of a pin locking member that is movable in a movement direction perpendicular to the connecting pin is engaged with the engagement recess to lock the connecting pin so that it does not come out of the through hole.

Instead of engaging the tip of the pin locking member with the engagement recess, a pin insertion portion (e.g., a hole penetrating the pin locking member) large enough to allow the connecting pin to pass through can be provided on the pin locking member, and the pin locking member can be moved in the above-mentioned movement direction between an engagement position where the engagement recess of the connecting pin is engaged by the edge of the pin insertion portion, and an unlocked position where the entire connecting pin can pass through the pin insertion portion, thereby switching between locking and unlocking the connecting pin. Also, by exposing part of the pin locking member to the outside and configuring it so that the user can push in the pin locking member to move it to the unlocked position, the user can freely perform the connection release operation.

JP 2007-82597 A

However, simply exposing part of the pin locking member can result in the pin locking member being pushed in unintentionally by the user. This creates the problem of making it easier for the user to mistakenly release the connection.

The objective of this invention is to provide a connection structure and wearable device that is less likely to cause accidental disconnection.

In order to solve the above problems, the connection structure according to the present invention comprises:
a connecting pin that is inserted into an insertion hole of a connecting object and an insertion hole of a connected object to connect the connecting object and the connected object to each other;
a pin locking member movable in a movement direction different from a direction in which the insertion hole of the one of the connecting object and the connecting object extends within a recess provided in one of the connecting object and the connecting object;
a biasing member that biases the pin locking member in one of the moving directions;
a holding member provided on one of the connecting object and the connecting target object, the holding member holding the pin locking member in cooperation with the biasing member;
Equipped with
the pin locking member has an exposed surface that is exposed from the holding member when the pin locking member is held by the holding member,
the exposed surface is located closer to the biasing member than a top surface of the holding member that is on an opposite side to the biasing member,
The holding member has a protrusion located around the exposed surface when the holding member holds the pin locking member.

In order to solve the above problems, the wearable device according to the present invention comprises:
A device main body as the connection target;
A band as the connected object for attaching the device main body to a target;
The connection structure;
Equipped with.

The present invention makes it possible to reduce the likelihood of accidentally disconnecting the connection.

FIG. 1 is a diagram showing the configuration of a clock. FIG. 2 is a diagram showing a schematic configuration of a band connection structure. FIG. 2 is a perspective view showing a configuration of a band connecting structure. 13 is a diagram showing a cross section of the band connection structure perpendicular to the X direction in a connecting pin locked state. FIG. 13 is a diagram showing a cross section of the band connection structure perpendicular to the Y direction in the connecting pin locked state. FIG. 13 is a diagram showing a cross section of the band connecting structure perpendicular to the X direction in a connecting pin unlocked state. FIG. 13 is a diagram showing a cross section of the band connecting structure perpendicular to the Y direction in the connecting pin unlocked state. FIG. FIG. 13 is a diagram showing a recess as viewed from the +Z direction. FIG. 4 is a diagram showing the configuration of a lid member. FIG. 4 is a diagram showing the configuration of a lid member. 11A and 11B are diagrams illustrating a configuration of a pin locking member. 11A and 11B are diagrams illustrating a configuration of a pin locking member. 11A and 11B are diagrams illustrating a configuration of a pin locking member. 13A and 13B are diagrams illustrating the restriction of rotation of the pin locking member inside the recess. 13A and 13B are diagrams illustrating the restriction of rotation of the pin locking member inside the recess. 13A and 13B are diagrams illustrating the restriction of rotation of the pin locking member inside the recess. 13A and 13B are diagrams illustrating behavior of a connecting pin when it is inserted. 13A and 13B are diagrams illustrating behavior of a connecting pin when it is inserted. 13 is a view of a recess according to Modification 1 as viewed from the +Z direction. FIG. 13A and 13B are diagrams illustrating a configuration of a pin locking member according to Modification 1. 13A and 13B are diagrams illustrating a configuration of a pin locking member according to Modification 1. 13A and 13B are diagrams illustrating a configuration of a pin locking member according to Modification 1. FIG. 11 is a diagram showing the configuration of a timepiece and band connection structure pertaining to Modification 2. 13 is a diagram showing a cross section perpendicular to the X direction of a band connection structure according to Modification 3. FIG.

The following describes an embodiment of the present invention with reference to the drawings.

<Clock configuration>
FIG. 1 is a diagram showing the configuration of a timepiece 1 according to this embodiment.
The watch 1 (wearable device) is a wristwatch that includes a device main body 2 and a band 3 that is used for wearing on the wrist. The device main body 2 includes an exterior member (case) and various components (e.g., a dial, hands, and mechanisms and circuits for operating the hands) that are incorporated inside the exterior member. In the following, the side of the device main body 2 on which the hands are visible is referred to as the front side, and the side opposite the front side is referred to as the back side. The device main body 2 includes band attachment parts 2a to which the band 3 is attached, which are located on the outer periphery of the exterior member and correspond to the 12 o'clock side and 6 o'clock side of the dial. Meanwhile, the band 3 has attachment ends 3a that are attached to the two band attachment parts 2a, 2a. The attachment ends 3a may be, for example, one of a plurality of links that the band 3 has. The watch 1 includes a band connection structure 100 (connection structure) that connects the band attachment part 2a and the attachment end 3a of the band 3 to each other. In other words, the band connection structure 100 is a structure that connects the device main body 2 and the band 3 to each other. Two band connection structures 100 are provided corresponding to the two band attachment parts 2a. Each band connection structure 100 connects the device main body 2 (band attachment part 2a) and the band 3 (attachment end 3a) in a detachable state by a user's operation. Therefore, the user can change the band 3 according to his/her preference or situation. In this embodiment, the device main body 2 corresponds to the connection target by the band connection structure 100, and the band 3 corresponds to the connected target by the band connection structure 100.

<Structure of Band Connection Structure>
FIG. 2 is a diagram showing a schematic configuration of the band connection structure 100. As shown in FIG.
The band attachment portion 2a of the device body 2 protrudes from the outer periphery of the device body 2 to form a connecting protrusion. On the other hand, the attachment end 3a of the band 3 is provided with a connecting recess 3b shaped to fit the band attachment portion 2a. A pair of end portions 3c of the attachment end 3a separated by the connecting recess 3b are each provided with a band side through hole 22 (through hole) extending in the width direction of the band 3. Also, the band attachment portion 2a is provided with a main body side through hole 21 (through hole) extending in the width direction of the band 3. When the band attachment portion 2a fits into the connecting recess 3b of the attachment end 3a, the main body side through hole 21 and the two band side through holes 22 communicate with each other in the same straight line to form a continuous through hole 20 that penetrates the band attachment portion 2a and the attachment end 3a. The band connection structure 100 includes a connecting pin 10 that is inserted through the communicating insertion hole 20 to connect the band attachment portion 2a and the attachment end portion 3a. By removing the connecting pin 10 from the communicating insertion hole 20, the connection between the band attachment portion 2a and the attachment end portion 3a can be released.

The overall configuration of the band connecting structure 100 will be described with reference to FIGS.
FIG. 3 is a perspective view showing the configuration of the band connection structure 100, in which the band 3 is omitted and the device body 2 is drawn in a see-through manner so that the configuration of the band connection structure 100 can be easily seen. In FIG. 3, the back surface of the device body 2 faces upward in the same figure. In the following, the orientation of each member of the band connection structure 100 will be described using the XYZ coordinate system. The X direction is a direction parallel to the insertion axis A1 (the central axis of the cross section perpendicular to the length direction of the body side insertion hole 21 and the band side insertion hole 22 when viewed from the length direction of the body side insertion hole 21 and the band side insertion hole 22) passing through the center of the insertion hole 20, and the Z direction is a direction parallel to the thickness direction of the device body 2 and from the front surface to the back surface. The Y direction is perpendicular to the X direction and the Z direction, and is a direction from the band 3 to the device body 2. FIGS. 4 and 6 are views showing a cross section of the band connection structure 100 perpendicular to the X direction, and FIGS. 5 and 7 are views showing a cross section of the band connection structure 100 perpendicular to the Y direction. It should be noted that band 3 is omitted in FIGS.

The band connection structure 100 includes a connecting pin 10, a pin locking member 30, a cover member 50 (holding member), and a spring 60 (biasing member). The spring 60 is omitted in FIG. 3. The band attachment portion 2a, the attachment end portion 3a, the connecting pin 10, the pin locking member 30, the cover member 50, and the spring 60 can be made of metal such as titanium alloy or stainless steel. However, they are not limited to metal, and may be any material having a certain level of strength, such as resin. The band attachment portion 2a is provided with a recess 40 extending from the back side toward the -Z direction so as to communicate with the main body side insertion hole 21. The direction in which the recess 40 extends is parallel to the Z direction and perpendicular to the insertion axis A1. The pin locking member 30 and the spring 60 are located inside the recess 40 (stored in the recess 40). The cover member 50 is detachably attached to the opening edge portion 41 of the recess 40. By attaching the cover member 50, the pin locking member 30 and the spring 60 are stored in the recess 40 without coming off the recess 40. The pin locking member 30 is movable in the Z direction inside the recess 40. Figures 4 to 7 show a cross section passing through the central axis A2 (the central axis of the cross section perpendicular to the movement direction of the pin locking member 30) of the pin locking member 30 located inside the recess 40.

The spring 60 is, for example, a compression coil spring, and is located between the bottom of the recess 40 and the pin locking member 30, and biases the pin locking member 30 toward the cover member 50 (toward the opening side of the recess 40). When no force is applied to the pin locking member 30 from the outside, the pin locking member 30 biased by the spring 60 is maintained in contact with the cover member 50. In this way, the cover member 50 cooperates with the spring 60 to hold the pin locking member 30. The cover member 50 has an opening 53 that connects the inside and outside of the recess 40 (i.e., penetrates the cover member 50), and the pin locking member 30 can be pushed (moved) in the -Z direction through the opening 53 against the elastic force of the spring 60. That is, the pin locking member 30 can move in a movement direction (Z direction) different from the direction in which the insertion hole 20 extends (the direction of the insertion axis A1; X direction). The portion of the pin locking member 30 on the insertion axis A1 side is provided with a pin insertion portion 30a (notch) large enough to allow the connecting pin 10 to pass through the main body side insertion hole 21 (communicating insertion hole 20). The connecting pin 10 has a generally round bar shape and has a first portion 11 and second portions 12 located on both sides of the first portion 11 and having a larger diameter than the first portion 11 (thicker than the first portion).

As shown in Figures 3 to 5, when the pin locking member 30 is pressed against the cover member 50 in the +Z direction by the bias of the spring 60, the step 13 between the first part 11 and the second part 12 of the connecting pin 10 is hooked on the edge 30b of the pin insertion part 30a of the pin locking member 30 (see Figures 5 and 10A to 10C). This causes the connecting pin 10 to be locked by the pin locking member 30. Hereinafter, the position of the pin locking member 30 when the pin locking member 30 is pressed against the cover member 50 (when the pin locking member 30 is held by the cooperation of the spring 60 and the cover member 50) is referred to as the "first position". In this embodiment, the edge 30b of the pin insertion part 30a of the pin locking member 30 corresponds to the "pin engagement part" that engages with the step 13 of the connecting pin 10.

On the other hand, as shown in Figures 6 and 7, when the pin locking member 30 is pushed through the opening 53 by the user against the elastic force (biasing force) of the spring 60, and moves to the "second position (position of the pin locking member 30 shown in Figures 6 and 7)" on the -Z side of the first position, the step portion 13 is no longer caught on the edge portion 30b of the pin insertion portion 30a, and the entire connecting pin 10 can pass through the pin insertion portion 30a. Therefore, the connecting pin 10 can be removed from the main body side insertion hole 21 (communicating insertion hole 20) to release the connection between the device main body 2 and the band 3.

The following describes the recess of the band attachment portion 2a and the detailed configuration of each part of the band connection structure 100.

<Concave>
As shown in Figs. 4 to 7, the recess 40 has an opening edge 41 located at the end in the +Z direction, and a main part 42 located on the -Z direction side of the opening edge 41. The main part 42 extends further in the -Z direction than the main body side insertion hole 21. The recess 40 (main part 42) has a bottom 40a (wall part) parallel to the XY plane. A part of the main part 42 intersects with the main body side insertion hole 21. The side wall surface of the main part 42 corresponds to the side wall surface of the recess 40 that extends in the moving direction of the pin locking member 30. In addition, the side wall surface of the main part 42 abuts against the side surface of the pin locking member 30 of the recess 40 (the side surface of the pin locking member 30 that extends in the moving direction of the pin locking member 30).

FIG. 8 is a diagram showing the recess 40 as viewed from the +Z direction.
8 illustrates the recess 40 with the connecting pin 10, the pin locking member 30, the cover member 50, and the spring 60 removed. The width of the main part 42 in the X direction (first direction) when viewed from the direction in which the central axis A2 extends (hereinafter referred to as the "central axis A2 direction") is smaller than the width in the Y direction (second direction). The main part 42 in this embodiment has a shape that is an ellipse that is long in the Y direction when viewed from the central axis A2 direction. That is, the main part 42 has a shape obtained by hollowing out an elliptical cylinder having an elliptical cross section perpendicular to the central axis A2 from the band attachment part 2a, and the side wall surface has the shape of the side surface of the elliptical cylinder. The main part 42 may have a shape obtained by hollowing out an elliptical cylinder from the band attachment part 2a, in which case the shape of the main part 42 when viewed from the central axis A2 direction is an ellipse.

The opening edge 41 of the recess 40 has a circular shape when viewed from the direction of the central axis A2, the shape being sized to fit onto the outer periphery of the lid member 50. In addition, a screw groove is provided on the cylindrical side wall surface of the opening edge 41 for screwing in the lid member 50, as shown in Figures 4 to 7.

In addition, as shown in Figures 4, 6, and 8, the central axis A2 of the pin locking member 30 located inside the recess 40 does not coincide with the insertion axis A1 of the main body side insertion hole 21, but is shifted in the +Y direction with respect to the insertion axis A1.

<Cover member>
9A and 9B are diagrams showing the configuration of the cover member 50. FIG.
9A is a diagram showing lid member 50 as viewed from the +Z direction, and FIG. 9B is a diagram showing a cross section of lid member 50 passing through the center of opening 53 and perpendicular to the X direction.

The lid member 50 is a member having a generally cylindrical shape, and has a base 51 with an opening 53 provided therein, and a protrusion 52 protruding outward from the base 51 in the movement direction (Z direction) of the pin locking member 30. The opening 53 penetrates the base 51 in the Z direction so as to connect the inside and outside of the recess 40. The opening 53 is provided in the center of the lid member 50 when viewed from the Z direction. The side wall surface of the opening 53 shown in Figures 9A and 9B is a cylindrical surface, but is not limited to this.

The side surface of the base 51 is provided with a screw thread 55 that fits into a screw groove provided on the side wall surface of the opening edge 41 of the recess 40. This screw thread 55 allows the base 51 of the lid member 50 to be screwed into the opening edge 41 of the recess 40. Thus, the lid member 50 is removably attached to the opening edge 41 of the recess 40. The state in which the lid member 50 is attached to the opening edge 41 corresponds to a "first state" in which the lid member 50 cooperates with the spring 60 to hold the pin locking member 30.

The top surface 50a (end surface on the +Z direction side) of the convex portion 52 opposite the spring 60 side (recess 40 side) is provided with a groove 54 that fits with a tool (such as a screwdriver) for rotating the cover member 50 when attaching the cover member 50 to the opening edge portion 41 of the recess 40 and when removing the cover member 50 from the opening edge portion 41. In this embodiment, the grooves 54 are provided in the X direction and the Y direction to form a cross-shaped groove 54 that fits with a Phillips screwdriver or the like, but this is not limited to this, and the groove 54 may be a straight groove that fits with a flathead screwdriver or the like, or a groove of a shape that can fit with other appropriate tools (such as a hexagonal wrench) may be used. The cover member 50 is attached with the pin locking member 30 and the spring 60 stored inside the recess 40 during the manufacture of the watch 1. In the event of a malfunction such as breakdown or deterioration of the pin locking member 30 and/or the spring 60, the pin locking member 30 and/or the spring 60 can be removed by removing the cover member 50, making it easy to carry out maintenance such as repair or replacement. The state in which the cover member 50 is removed from the opening edge portion 41 corresponds to a "second state" in which the pin locking member 30 can be removed from the recess 40. The cover member 50 is in the first state when attached to the device body portion 2, and in the second state when removed from the device body portion 2. In other words, the cover member 50 can be selectively operated between the first state and the second state.

<Connecting pin>
As shown in Figs. 3, 5 and 7, the connecting pin 10 inserted into the main body side through hole 21 (communicating through hole 20) has a cylindrical first portion 11 located at the center in the X direction, and a cylindrical second portion 12 located on both sides of the first portion 11 in the X direction and having a larger diameter (here, diameter) than the first portion 11. Here, the cylindrical shape includes a shape with a tapered end. In other words, the shape of the connecting pin 10 is a shape in which a groove is provided in the outer circumferential direction in the first portion 11 so that the diameter is smaller than that of the adjacent second portion 12. With this configuration, the connecting pin 10 has a step portion 13 at the boundary between the first portion 11 and the second portion 12. The step portion 13 has a shelf-like step surface perpendicular to the X direction. The length of the first portion 11 in the X direction is slightly longer than the width of the pin locking member 30 in the X direction. Furthermore, at both ends of the connecting pin 10 (the ends of the second portion 12 opposite the first portion 11 side), the corners of the end faces are chamfered to provide tapered portions 14.

<Pin locking member>
10A to 10C are diagrams showing the configuration of the pin locking member 30. FIG.
The pin locking member 30 has a main body portion 31, a push-in portion 32 located on the +Z direction side of the main body portion 31, and a contact portion 33 located on the -Z direction side of the main body portion 31. A central axis A2 of the pin locking member 30 is depicted in Figures 10A to 10C.

The main body 31 has a shape in which the pin insertion portion 30a (notch) is provided in an oval cylinder with an oval shape when viewed from the central axis A2 direction. As shown in Figures 3 to 7, the side of the main body 31 abuts against the side wall surface of the main part 42 of the recess 40. That is, the main body 31 corresponds to the part of the pin locking member 30 that abuts against the recess 40. Also, the side of the main body 31 corresponds to the side of the pin locking member 30 that extends in the moving direction of the pin locking member 30. When the pin locking member 30 is in the first position, the surface (upper surface) of the main body 31 facing the +Z direction abuts against the surface (lower surface) of the cover member 50 facing the -Z direction. The width of the main body 31 in the X direction (first direction) when viewed from the central axis A2 direction is smaller than the width in the Y direction (second direction). The shape of the main body 31 as viewed from the direction of the central axis A2 is such that a certain gap is secured between the side wall surface of the main part 42 of the recess 40 (a shape one size smaller than the side wall surface of the main part 42, for example a similar shape) so that the pin locking member 30 can move smoothly inside the recess 40 in the Z direction. Therefore, for example, if the shape of the main part 42 as viewed from the direction of the central axis A2 is an ellipse, the shape of the main body 31 is also an ellipse. Note that because the above-mentioned gap is small, the gap is not depicted in Figures 3 to 7.

6 and 7, the pin insertion portion 30a is sized and positioned to allow both the first portion 11 and the second portion 12 of the connecting pin 10 to pass through when the pin locking member 30 is in the second position. The pin insertion portion 30a has a shape in which a portion corresponding to an oval cylinder having an axis perpendicular to the central axis A2, offset from the central axis A2, and parallel to the insertion axis A1 is hollowed out from the main body portion 31.

The pushing portion 32 has a cylindrical shape, and the diameter of the pushing portion 32 is smaller than the minor axis of the ellipse of the main body portion 31. The diameter of the pushing portion 32 is also set to a size that allows it to pass through the opening 53 of the lid member 50. When the pin locking member 30 moves in the Z direction within the recess 40, the pushing portion 32 moves in the Z direction within the opening 53 of the lid member 50.

As shown in FIG. 4, the end face 32a on the +Z direction side of the pushing portion 32 is an exposed surface that is exposed when viewed from the opening 53 of the cover member 50 when the pin locking member 30 is in the first position. Also, when the pin locking member 30 is in the first position, the end face 32a of the pushing portion 32 is located closer to the spring 60 side (the bottom 40a side of the recess 40) than the top face 50a of the convex portion 52 of the cover member 50. In other words, when the pin locking member 30 is in the first position, the position P2 in the Z direction of the end face 32a of the pushing portion 32 shown in FIG. 4 is located closer to the recess 40 side than the position P1 of the top face 50a of the cover member 50. Also, in the movement direction of the pin locking member 30 (when viewed from the Z direction), the convex portion 52 of the cover member 50 is located around the end face 32a exposed from the opening 53.

6 and 7, even when the pin locking member 30 moves in the -Z direction to the second position, a part of the pushing portion 32 is located inside the opening 53 of the cover member 50. In other words, the pushing portion 32 is configured not to come out of the opening 53 of the cover member 50 even when the pin locking member 30 moves between the first position and the second position inside the recess 40. That is, the end face 32a of the pushing portion 32 moves inside the opening 53 of the cover member 50 in the direction of the central axis A2 when the pin locking member 30 moves between the first position and the second position in the direction of the central axis A2.

The end surface 32a of the pushing portion 32 has a hole that is deeper toward the center. This hole makes it easier to push the center of the end surface 32a of the pushing portion 32 through the opening 53 with a thin rod-shaped member or the like.

The contact portion 33 has a cylindrical shape, and the diameter of the contact portion 33 is smaller than the minor axis of the oval of the main body portion 31. The diameter of the contact portion 33 is also smaller than the inner diameter of the spring 60, which is a compression coil spring, and the contact portion 33 is located inside the spring 60. The contact portion 33 abuts against the bottom 40a of the recess 40 when the pin locking member 30 is in the second position. In other words, the user can push and move the pin locking member 30 (push-in portion 32) in the -Z direction until the contact portion 33 abuts against the bottom 40a of the recess 40, thereby moving the pin locking member 30 to the second position and releasing the connecting pin lock.

In the pin locking member 30 having such a shape, the main body 31 is slightly smaller than the side wall surface of the main part 42 of the recess 40 when viewed from the direction of the central axis A2, and the shape of the main body 31 when viewed from the direction of the central axis A2 is elliptical rather than circular, so that the rotation of the main body 31 around the central axis A2 is limited. That is, the recess 40 and the pin locking member 30 have a shape that limits the rotation of the pin locking member 30 around the central axis A2 inside the recess 40. In detail, the recess 40 and the pin locking member 30 have a shape that limits the rotation of the pin locking member 30 around a virtual axis that extends in the movement direction (Z direction) of the pin locking member 30 and passes through the pin locking member 30 inside the recess 40 within a range in which the connecting pin 10 can be engaged with the edge part 30b (pin engagement part) of the pin insertion part 30a at the step part 13. In the following, an example will be described in which the virtual axis coincides with the central axis A2 of the pin locking member 30. Note that the virtual axis may not coincide with the central axis A2.

11A to 11C are diagrams for explaining the restriction of rotation of the pin locking member 30 inside the recess 40. In Fig. 11B and Fig. 11C, the range in which the pin insertion portion 30a is provided is hatched (dotted).
As shown in Fig. 11A, a gap (play) is provided between the side wall surface of the recess 40 and the side surface of the pin locking member 30, so that the pin locking member 30 can rotate slightly around the central axis A2 inside the recess 40. Fig. 11A shows the direction B1 of the long axis of the pin locking member 30 (main body portion 31) when rotated maximally clockwise, and the direction B2 of the long axis when rotated maximally counterclockwise. The pin locking member 30 can rotate within a rotatable range R from the state where the long axis is oriented from B1 to B2. Note that, for convenience of explanation, the rotatable range R is exaggerated and drawn larger than the actual range in Figs. 11A to 11C.

Here, the pin locking member 30 has a shape that allows the first portion 11 and the second portion 12 of the connecting pin 10 to pass through the pin insertion portion 30a regardless of the orientation in the second position within the rotatable range R. That is, in any state between the state in which the long axis of the pin locking member 30 is oriented as B1 as shown in Fig. 11B and the state in which the long axis of the pin locking member 30 is oriented as B2 as shown in Fig. 11C, the insertion hole 20 passes through the range (the portion marked with dots) cut out as the pin insertion portion 30a and does not engage with the pin locking member 30. As a result, when the pin locking member 30 is moved to the second position, the connecting pin 10 can pass through the pin insertion portion 30a without adjusting the orientation of the rotation direction of the pin locking member 30.
Note that the configuration may be such that the connecting pin 10 cannot pass through the pin insertion portion 30a in a portion of one or both ends of the rotatable range R. Even in this configuration, the connecting pin 10 can pass through the pin insertion portion 30a in most of the rotatable range R, so that the orientation of the pin locking member 30 can be adjusted with some degree of ease. In this case, a groove that fits into a tool for rotating the pin locking member 30 may be provided on the end face 32a of the pin locking member 30.

<Springs>
As shown in FIGS. 4 to 7, the spring 60 is located between the bottom 40a of the recess 40 and the pin locking member 30. The +Z end of the spring 60 abuts against the end face of the main body 31 of the pin locking member 30 on the -Z direction side, and exerts an elastic force in the +Z direction on the pin locking member 30. When the pin locking member 30 is not receiving a force in the -Z direction from the outside of the recess 40, the spring 60 biases the pin locking member 30 in the +Z direction to abut against the cover member 50. When the pin locking member 30 is pushed in the -Z direction through the opening 53, the spring 60 contracts in the Z direction until the abutment portion 33 of the pin locking member 30 abuts against the bottom 40a of the recess 40 in response to the force in the -Z direction received from the pin locking member 30.

<Connecting pin locked state>
With the pin locking member 30 and the spring 60 housed inside the recess 40 covered by the cover member 50, the connecting pin 10 can be inserted into the communicating insertion hole 20 to achieve the connecting pin locked state shown in Figures 3 to 5. More specifically, when the connecting pin 10 is inserted into the communicating insertion hole 20 with the pin locking member 30 in the first position, the tapered portion 14 provided at the tip of the connecting pin 10 comes into contact with the edge portion 30b of the pin insertion portion 30a as shown in Figure 12A. By pushing the connecting pin 10 in this state, the tapered portion 14 pushes down the edge portion 30b of the pin insertion portion 30a in the -Z direction, and the second portion 12 of the connecting pin 10 passes through the pin insertion portion 30a as shown in Figure 12B.
Alternatively, instead of the above, the user may operate the pin locking member 30 (push-in portion 32) in the -Z direction from outside the recess 40 through the opening 53 of the cover member 50, and move the pin locking member 30 to the second position or a position between the first position and the second position, and then insert the connecting pin 10.

When the connecting pin 10 is pushed in the -X direction in FIG. 12B until the first portion 11 of the connecting pin 10 reaches the position of the pin insertion portion 30a, the pin locking member 30 moves to the first position by the elastic force of the spring 60, as shown in FIGS. 3 to 5, and the edge portion 30b of the pin insertion portion 30a engages with the step portion 13 of the connecting pin 10 to lock the connecting pin 10. In this connecting pin locking state, only the first portion 11 of the first portion 11 and the second portion 12 of the connecting pin 10 can pass through the pin insertion portion 30a, and the second portion 12 is locked by the pin locking member 30. With the band attachment portion 2a of the device main body 2 fitted into the connection recess 3b of the attachment end portion 3a of the band 3, the connecting pin 10 is inserted into the communication insertion hole 20 to enter the connecting pin locking state, and the device main body 2 and the band 3 can be connected without the connecting pin 10 coming off the communication insertion hole 20.

<Connecting pin unlocked state>
In the connecting pin locking state, when the user operates to push the pin locking member 30 (pushing portion 32) in the -Z direction from outside the recess 40 through the opening 53 of the cover member 50 and move the pin locking member 30 until the abutting portion 33 abuts against the bottom portion 40a of the recess 40, the position of the pin locking member 30 becomes the second position shown in Figures 6 and 7, and the connecting pin is released. In this connecting pin release state, the edge portion 30b of the pin insertion portion 30a is no longer engaged with the step portion 13 of the connecting pin 10, and the first portion 11 and the second portion 12 of the connecting pin 10 can pass through the pin insertion portion 30a. In other words, when the pin locking member 30 is located at the second position, the first portion 11 and the second portion 12 can pass through the edge portion 30b of the pin insertion portion 30a (can pass through the edge portion 30b without engaging with the edge portion 30b). Therefore, by pushing the connecting pin 10 in the X direction, the connecting pin 10 can be removed from the communicating insertion hole 20, and the connection between the device body 2 and the band 3 can be released.

<Modification 1>
Next, a first modified example of the above embodiment will be described. The first modified example differs from the above embodiment in the shapes of the recess 40 and the pin locking member 30. Below, differences from the above embodiment will be described, and descriptions of points in common with the above embodiment will be omitted.

FIG. 13 is a view of the recess 40 according to the first modification seen from the +Z direction.
The main part 42 (the part that abuts against the pin locking member 30) of the recess 40 according to the first modification has a rotationally asymmetric shape when viewed from the direction of the central axis A2. Here, rotationally asymmetric means that there is no number n (where n ≠ 1) that results in the same shape as the original shape when rotated (360/n) degrees around the central axis A2. In detail, the shape of the main part 42 when viewed from the direction of the central axis A2 is a shape consisting of a part of a circle and a chord of the circle. That is, the side wall surface of the main part 42 has a shape in which a plane 42f that is parallel to the central axis A2 and deviates from the central axis A2 is provided on a part of the side surface of a cylinder. The plane 42f of the side wall surface of the main part 42 and the curved surface portion may be smoothly connected so as not to form a ridge line.

14A to 14C are diagrams showing the configuration of a pin locking member 30 according to the first modified example.
The main body 31 (the portion that contacts the recess 40) of the pin locking member 30 according to the first modification has a rotationally asymmetric shape when viewed from the direction of the central axis A2. More specifically, the main body 31 has a shape formed of a part of a circle and a chord of the circle when viewed from the direction of the central axis A2. That is, the main body 31 has a shape obtained by cutting a part of a cylinder at a position off the central axis A2 with a plane 31f parallel to the central axis A2. The plane 31f of the side surface of the main body 31 and the curved surface portion may be smoothly connected so that no ridge is formed. The shape of the main body 31 when viewed from the direction of the central axis A2 is a shape that ensures a certain gap between the main body 31 and the side wall surface of the main part 42 of the recess 40 (a shape that is one size smaller than the side wall surface of the main part 42) so that the pin locking member 30 can move smoothly inside the recess 40 in the Z direction.

In this way, by making the recess 40 and the pin locking member 30 rotationally asymmetric, the pin locking member 30 can be inserted into the recess 40 only when it is in a certain orientation (including the range of rotation possible due to the above-mentioned gap). In other words, the orientation of the pin locking member 30 in the recess 40 can be limited to a certain orientation. The above-mentioned specific orientation is the orientation in which the plane 42f of the recess 40 and the plane 31f of the pin locking member 30 face each other. When the pin locking member 30 is located inside the recess 40 in this specific orientation, the pin insertion portion 30a is provided in a position and range such that the pin insertion portion 30a is connected to the main body side insertion hole 21 (communicating insertion hole 20). As a result, by adjusting the orientation of the pin locking member 30 so that it enters the recess 40 and then storing the pin locking member 30 in the recess 40, the positions of the pin insertion portion 30a and the main body side insertion hole 21 can be easily aligned. For example, in FIG. 3, if the pin insertion portion 30a is rotated 180 degrees around the central axis A2 and stored in the recess 40, the pin insertion portion 30a will face in the +Y direction and will not be aligned with the main body side insertion hole 21, but the configuration of variant 1 can prevent this situation from occurring.

The shapes of the recess 40 and the pin locking member 30 need only be rotationally asymmetric when viewed from the central axis A2, and are not limited to those shown in FIG. 13 and FIG. 14A to FIG. 14C. For example, they may be a shape consisting of a part of an ellipse and a chord of the ellipse when viewed from the central axis A2. Also, when viewed from the central axis A2, one of the recess 40 and the pin locking member 30 may have a convex portion, and the other may have a concave portion that fits into the convex portion.

<Modification 2>
Next, a second modification of the above embodiment will be described. The second modification is different from the above embodiment in that a recess 40 is provided in the attachment end 3a of the band 3. The second modification may be combined with the first modification.
FIG. 15 is a diagram showing the configuration of a watch 1 and band connection structure 100 according to the second modification.
In the second modification, the attachment end 3a of the band 3 forms a connecting protrusion, and the band attachment section 2a of the device body 2 has a connecting recess shaped to fit the attachment end 3a of the band 3. The attachment end 3a is provided with a band side through hole 22, and a pair of tip ends of the band attachment section 2a are provided with a main body side through hole 21. The connecting pin 10 is inserted into the communicating through hole 20 formed by communicating the main body side through hole 21 and the band side through hole 22. In the second modification, a recess 40 is provided in the attachment end 3a. The pin locking member 30 and the spring 60 are housed in this recess 40, and a cover member 50 is attached to the opening edge portion 41 of the recess 40. Except for the position where the recess 40 is provided, the structure of the band connection structure 100 is the same as that of the above embodiment.

<Modification 3>
Next, a third modification of the above embodiment will be described. The third modification is different from the above embodiment in the structure of the cover member 50. The third modification may be combined with at least one of the first and second modifications.

FIG. 16 is a diagram showing a cross section perpendicular to the X direction of the band connection structure according to the third modification.
As shown in FIG. 16, the cover member 50 according to the third modification has a hinge portion 56 fixed to the band attachment portion 2a of the device body portion 2, and is provided so as to be rotatable around the hinge portion 56. In detail, the cover member 50 is rotatable between a state in which the opening of the recess 40 is closed as shown by the solid line in FIG. 16 and a state in which the opening of the recess 40 is opened as shown by the dashed line in FIG. 16. A fastener (e.g., a snap, etc.) (not shown) is provided at the end of the cover member 50 opposite to the hinge portion 56, which fastens the end to the band attachment portion 2a and holds the cover member 50 in a closed state (as shown by the solid line). When the cover member 50 is fixed by the fastener, the cover member 50 holds the pin locking member 30 against the biasing force of the spring 60. Therefore, the state in which the cover member 50 closes the opening of the recess 40 as shown by the solid line corresponds to a "first state" in which the cover member 50 cooperates with the spring 60 to hold the pin locking member 30. Also, as indicated by the dashed line, the state in which the cover member 50 opens the opening of the recess 40 corresponds to a "second state" in which the pin locking member 30 can be removed from the recess 40. Thus, the cover member 50 can be selectively operated between the first state and the second state by rotating it about the hinge portion 56.
The cover member 50 is not limited to one that rotates about the hinge portion 56, but may be, for example, a sliding shutter that is capable of sliding in a direction parallel to the XY plane in FIG.

＜Effects＞
As described above, the band connection structure 100 as a connection structure according to this embodiment has the first portion 11 and the second portion 12 thicker than the first portion, and there is a step portion 13 between the first portion 11 and the second portion 12. When inserted into the body-side through-hole 21 of the device body 2 as the connection target and the band-side through-hole 22 of the band 3 as the connection receiving target, the connection pin 10 that connects the device body 2 and the band 3 to each other and the recess 40 provided in the device body 2 move in a direction (Z direction) different from the direction in which the body-side through-hole 21 of the device body 2 extends. ) and having an edge portion 30b (pin engagement portion) of a pin insertion portion 30a with which the connecting pin 10 engages at a step portion 13, a spring 60 as a biasing member that biases the pin locking member 30 in one direction in the moving direction, and a lid member 50 as a retaining member that is attached to the device main body 2 and cooperates with the spring 60 to hold the pin locking member 30, wherein an end face 32a as an exposed surface of the surface of the pin locking member 30 is exposed from the lid member 50 and is located closer to the spring 60 than a top face 50a of the lid member 50 on the opposite side to the spring 60.
In this manner, by configuring the end surface 32a of the pin locking member 30 to be located closer to the spring 60 than the top surface 50a of the cover member 50, it is possible to prevent the pin locking member 30 from being pushed in unintentionally by the user, thereby making it less likely that an erroneous operation will occur to release the connection between the device body 2 and the band 3.

When the pin locking member 30 moves in the above-mentioned movement direction, the end face 32a as the exposed surface moves inside the opening 53 provided in the cover member 50 in the above-mentioned movement direction. This allows the end face 32a to be pushed in, for example, in a direction that is easy for inserting a rod-shaped member or the like into the opening 53, to move the pin locking member 30 to the second position. Furthermore, the position of the end face 32a when pushed in is regulated and stabilized by the inner wall surface of the opening 53, making it easier to push in the end face 32a.

The cover member 50 has a base 51 with an opening 53 and a protrusion 52 protruding outward from the base 51 in the movement direction. When the connecting pin 10 engages with the edge 30b of the pin insertion portion 30a as the pin engagement portion at the step portion 13, the end face 32a is located closer to the spring 60 than the top face 50a of the protrusion 52 on the opposite side to the spring 60 side, and the protrusion 52 is located around the end face 32a when viewed from the movement direction. In this way, the presence of the protrusion 52 around the end face 32a as the exposed surface makes it possible to more reliably prevent the occurrence of a malfunction in which the end face 32a of the pin locking member 30 is pushed in against the user's intention.

In addition, the central axis A2 of the cross section perpendicular to the moving direction of the pin locking member 30 is offset from the insertion axis A1, which is the central axis of the cross section perpendicular to the length direction of the insertion hole 20, when viewed from the length direction of the insertion hole 20, and the pin engagement portion is the edge portion 30b of the pin insertion portion 30a (notch) provided at least in the portion of the pin locking member 30 on the insertion axis A1 side. With this, compared to a configuration in which the central axis A2 intersects with the insertion axis A1 at one point and the pin engagement portion is the edge portion of the hole penetrating the pin locking member 30 (in the x-axis direction), the maximum width of the pin locking member 30 in the direction perpendicular to the central axis A2 can be reduced, thereby making the pin locking member 30 smaller. In addition, since the diameter of the connecting pin 10 is not limited to less than the maximum width of the pin locking member 30, the design freedom of the connecting pin 10 can be increased.

In addition, the pin locking member 30 is movable in a movement direction inside the recess 40 between a first position and a second position different from the first position, and when the pin locking member 30 is located at the first position due to cooperation between the spring 60 and the cover member 50, the connecting pin 10 engages with the edge portion 30b of the pin insertion portion 30a at the step portion 13, and when the pin locking member 30 is located at the second position against the biasing force of the spring 60 by user operation, the second portion 12 can be inserted through the edge portion 30b of the pin insertion portion 30a.
According to this, the engagement of the connecting pin 10 by the pin engagement member 30 can be released by a simple operation of moving the pin engagement member 30 against the biasing force of the spring 60. By releasing the engagement of the connecting pin 10 and removing it from the insertion hole 20, the connection between the device main body 2 and the band 3 can be released, and the band 3 can be replaced. Thus, the band 3 can be replaced by a simple operation that does not require special tools or skills.
Furthermore, by adopting a structure in which the step portion 13 between the first portion 11 and the second portion 12 of the connecting pin 10 is caught on the edge portion 30b of the pin insertion portion 30a of the pin locking member 30, the contact area between the pin locking member 30 and the connecting pin 10 can be made wider, and the connecting pin 10 can be more reliably locked. Therefore, even when an impact is applied to the band connection structure 100, the lock of the connecting pin 10 is unlikely to be released, making it possible to prevent the band 3 from unintentionally coming off.

The pin locking member 30 also has an abutment portion 33 that abuts against the bottom portion 40a (wall portion) that intersects with the above-mentioned movement direction inside the recess 40 when the pin locking member 30 is in the second position. This allows the pin locking member 30 to be moved to the second position and the locking of the connecting pin 10 by the pin locking member 30 to be released by the easy-to-understand operation of pushing the pin locking member 30 in until the abutment portion 33 abuts against the bottom portion 40a of the recess 40.

In addition, by using the spring 60, which is a compression coil spring, as the elastic member and positioning the abutment portion 33 inside the spring 60, the spring 60 and the abutment portion 33 can be stored compactly inside the recess 40. This allows the recess 40 and the band connection structure 100 to be made smaller.

The watch 1 as a wearable device according to this embodiment includes the device body 2 as a connection target, the band 3 as a connection receiving target for attaching to the device body 2, and the above-mentioned band connection structure 100. This allows the band 3 to be replaced with a simple operation. It also makes it less likely that an erroneous operation will occur when disconnecting the connection between the device body 2 and the band 3.

＜Other＞
The above embodiment is merely an example of the connection structure and wearable device according to the present invention, and the present invention is not limited to this.
For example, the watch 1 has been given as an example of a wearable device, but the present invention is not limited to this and may be any device worn by the user on the body, such as an activity meter or other health care device.

The connecting object is not limited to the device body 2 of the watch 1, and the connected object is not limited to the band 3 of the watch 1. For example, the connecting object and the connected object may both be one of the multiple links that make up the band 3. In other words, the connecting structure may be used to connect the links that make up the band 3.

Although screwing has been exemplified as a method for attaching the lid member 50 to the device body 2 or the band 3, this is not limiting and the lid member 50 can be attached by any method that allows attachment and detachment without destroying the attachment portion (opening edge 41 in the above embodiment) on the device body 2 or the band 3 and the lid member 50. For example, the lid member 50 may be attached to the opening edge 41 of the recess 40 by snap-fitting the convex and concave portions of the opening edge 41 and the lid member 50, respectively.

The retaining member is not limited to the cover member 50 attached to the opening edge 41 of the recess 40, but may be in any position and shape as long as it is capable of restricting the movement of the pin locking member 30 inside the recess 40. For example, the retaining member may be a member attached to the side wall surface of the recess 40, or may be a protruding member provided on the side wall surface of the recess 40.

In addition, although a configuration in which the recess 40 extends in the Z direction has been exemplified, this is not limited thereto, and the direction in which the recess 40 extends may be inclined with respect to the Z direction.

In addition, although the configuration in which the insertion axis A1 of the communicating insertion hole 20 and the central axis A2 of the pin locking member 30 located inside the recess 40 are misaligned has been exemplified, it is also possible to have a configuration in which the insertion axis A1 and the central axis A2 can intersect at one point. In this case, the pin locking member 30 is a hole that penetrates the pin locking member 30 so that the connecting pin 10 inserted into the communicating insertion hole 20 can pass through the center of the pin locking member 30 located inside the recess 40.

In addition, the pin locking member 30 has a pin insertion portion 30a, and the edge portion 30b of the pin insertion portion 30a corresponds to the pin engagement portion, but this is not limited to the above. For example, the pin locking member may have a protruding pin engagement portion at its tip that engages with the stepped portion 13 of the connecting pin 10.

The groove provided in the first portion 11 of the connecting pin 10 does not necessarily have to go all the way around the circumference, but may be provided partially along the circumference. For example, when using a pin locking member having the above-mentioned protruding pin engagement portion, it is sufficient that at least a groove of a size that allows the pin engagement portion to engage is provided.

The communicating through-hole 20 does not necessarily have to be a through-hole that penetrates the band attachment portion 2a of the device body 2 and the attachment end portion 3a of the band 3, and one end of the through-hole (when applied to the embodiment of FIG. 2, the end of one of the band side through-holes 22 opposite the body side through-hole 21) may be a closed end. In this case, the second portion 12 of the connecting pin 10 may be provided only on one side of the closed end of the first portion 11. With this configuration, the movement of the connecting pin 10 toward the closed end side is restricted by the closed end, and the movement toward the opposite side to the closed end side is restricted by the engagement of the pin locking member 30 of the step portion 13.

In addition, the spring 60, which is a compression coil spring, has been exemplified as the biasing member, but is not limited to this and may be a spring of a shape other than a coil shape or a member made of a material having elasticity such as silicone. In addition, the biasing member may be a tension spring provided between the pin locking member 30 and the cover member 50 and attached to both the pin locking member 30 and the cover member 50. In addition, the biasing member may be one that biases the pin locking member 30 toward the cover member 50 by magnetic force. In this case, the tension spring may be detachable or non-detachable from both the pin locking member 30 and the cover member 50.

In addition, to move the pin locking member 30 from the first position to the second position, a method of pushing the pushing portion 32 of the pin locking member 30 in the -Z direction has been exemplified, but instead, the pin locking member 30 may be moved by pulling it in the -Z direction from the side opposite the cover member 50. In this case, the bottom 40a of the recess 40 may be partially penetrated on the side opposite the opening edge 41, and the member connected to the pin locking member 30 may be pulled out of this through hole so that the user can pull it.

In addition, the bottom 40a having a plane parallel to the XY plane is illustrated as the wall of the recess 40 against which the abutment portion 33 of the pin locking member 30 abuts, but the wall may have any shape against which the abutment portion 33 of the pin locking member 30 abuts. In addition, a through hole may be provided in part of the bottom of the recess 40, penetrating the recess 40 on the side opposite the opening edge portion 41.

In addition, although an example in which the lid member 50 is removably attached has been described, this is not limiting, and the lid member 50 may be fixed to the opening edge portion 41 of the recess 40 in a non-removable state. In addition, the lid member 50 may be formed from a part of the band attachment portion 2a (attachment end portion 3a in variant 2; the same applies below) (i.e., it may be integral with the band attachment portion 2a).

Furthermore, the detailed configuration and operation of the components of the watch 1 and band connection structure 100 in the above embodiment may of course be modified as appropriate without departing from the spirit of the present invention.

Although the embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and its equivalents.
The inventions described in the claims originally attached to this application are set forth below. The claim numbers in the appended claims are the same as those in the claims originally attached to this application.
[Additional Notes]
<Claim 1>
a connecting pin having a first portion and a second portion thicker than the first portion, with a step portion between the first portion and the second portion, the connecting pin being inserted into an insertion hole of a connecting object and an insertion hole of a connected object to connect the connecting object and the connected object to each other;
a pin locking member that is movable in a moving direction different from a direction in which the insertion hole of the one of the connecting object and the connecting object extends within a recess that is provided in one of the connecting object and the connecting object, and that has a pin engaging portion with which the connecting pin engages at the step portion;
a biasing member that biases the pin locking member in one of the moving directions;
a holding member provided on one of the connecting object and the connecting target object, the holding member holding the pin locking member in cooperation with the biasing member;
Equipped with
an exposed surface of the surface of the pin locking member is exposed from the holding member and is located closer to the biasing member than a top surface of the holding member on a side opposite to the biasing member;
Interlocking structure.
<Claim 2>
The connection structure according to claim 1 , wherein the exposed surface moves in the movement direction inside an opening provided in the holding member when the pin locking member moves in the movement direction.
<Claim 3>
the holding member has a base portion in which the opening is provided and a protrusion portion protruding outward from the base portion in the movement direction,
3. The connection structure according to claim 2, wherein when the connecting pin engages with the pin engagement portion at the step portion, the exposed surface is located closer to the biasing member than a top surface of the convex portion on the opposite side to the biasing member side, and when viewed from the movement direction, the convex portion is located around the exposed surface.
<Claim 4>
a central axis of a cross section of the pin locking member perpendicular to the moving direction is shifted from an insertion axis that is a central axis of a cross section perpendicular to the longitudinal direction of the insertion hole when viewed from the longitudinal direction of the insertion hole,
The pin engagement portion is an edge portion of a notch provided in at least a portion of the pin locking member on the side of the insertion shaft.
The connection structure according to claim 1 or 2.
<Claim 5>
the pin locking member is movable in the movement direction within the recess between a first position and a second position different from the first position,
When the pin locking member is located at a first position due to cooperation between the biasing member and the holding member, the connecting pin engages with the pin engagement portion at the step portion, and when the pin locking member is located at a second position against the biasing force of the biasing member by a user's operation, the second portion can be inserted into the pin engagement portion.
The connection structure according to any one of claims 1 to 4.
<Claim 6>
The connection structure according to claim 5 , wherein the pin locking member has an abutment portion that abuts against a wall portion intersecting the moving direction inside the recess when the pin locking member is in the second position.
<Claim 7>
The biasing member is a compression coil spring,
The abutment portion is located inside the compression coil spring.
The connection structure according to claim 6.
<Claim 8>
A device main body as the connection target;
A band as the connected object for attaching the device main body to a target;
A connection structure according to any one of claims 1 to 7,
A wearable device comprising:

1. Watch (wearable device)
2. Equipment main body (consolidated)
2a Band attachment part 3 Band (connected object)
3a Mounting end 3b Connection recess 3c Tip 10 Connection pin 11 First portion 12 Second portion 13 Step portion 14 Tapered portion 20 Communication insertion hole 21 Body side insertion hole (insertion hole)
22 Band side insertion hole (insertion hole)
30 Pin locking member 30a Pin insertion portion 30b Edge portion (pin engagement portion)
31 Main body portion 31f Flat surface 32 Push-in portion 32a End surface (exposed surface)
33 Contact portion 40 Recess 40a Bottom portion (wall portion)
41 Opening edge portion 42 Main portion 42f Plane 50 Lid member (holding member)
50a Top surface 51 Base 52 Convex portion 53 Opening 54 Groove 55 Thread 100 Band connection structure (connection structure)
A1 Insertion axis A2 Central axis R Rotation range

Claims (5)

a connecting pin that is inserted into an insertion hole of a connecting object and an insertion hole of a connected object to connect the connecting object and the connected object to each other;
a pin locking member movable in a movement direction different from a direction in which the insertion hole of the one of the connecting object and the connecting object extends within a recess provided in one of the connecting object and the connecting object;
a biasing member that biases the pin locking member in one of the moving directions;
a holding member provided on one of the connecting object and the connecting target object, the holding member holding the pin locking member in cooperation with the biasing member;
Equipped with
the pin locking member has an exposed surface that is exposed from the holding member when the pin locking member is held by the holding member,
the exposed surface is located closer to the biasing member than a top surface of the holding member that is on an opposite side to the biasing member,
the holding member has a protrusion located around the exposed surface when the holding member holds the pin locking member,
Interlocking structure. The connection structure according to claim 1 , wherein the retaining member has a plurality of the protrusions at equal intervals around the exposed surface. The connection structure according to claim 1 or 2, wherein the exposed surface moves in the movement direction inside an opening provided in the retaining member when the pin locking member moves in the movement direction. a central axis of a cross section of the pin locking member perpendicular to the moving direction is shifted from an insertion axis, which is a central axis of a cross section perpendicular to the longitudinal direction of the insertion hole, when viewed from the longitudinal direction of the insertion hole;
The connection structure according to any one of claims 1 to 3. A device main body as the connection target;
A band as the connected object for attaching the device main body to a target;
A connection structure according to any one of claims 1 to 4 ;
A wearable device comprising:

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