JPH0616894U - Watch band mounting structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To facilitate the fitting of the spring rod into the hole of the watch case and improve the workability of the work of attaching the watch band to the watch case. A through hole 42 for inserting the spring rod 24 is formed in the width direction of the watch band 40, and a first end surface 44, which is substantially perpendicular to the longitudinal direction of the watch band 40, is formed in the vicinity of the through hole 42. A second end surface 46 that is substantially parallel to the longitudinal direction of the watch band 40 is provided. A protrusion 56 as a rotation stopper is formed at a position where the first end surface 44 and the second end surface 46 communicate with each other. The distance from the center of the through hole 42 to the first end surface 44 is
It is set longer than the distance from the end face 50 of the watch case 48 to the center of the fitting hole 54 of the watch case 48. Through hole 4
2 is the distance from the center of 2 to the second end face 46
The distance from the end face 50 of No. 8 to the center of the fitting hole 54 of the watch case 48 is set to be equal to or slightly shorter than the distance. At a position beyond the end of the end face 50 of the watch case 48, when the first end face 44 of the watch band 40 is in contact with the end face 50 of the watch case 48, a recess 58 for accommodating the protrusion 56 of the watch band 40 is formed. Set up.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a watch band mounting structure for easily mounting a watch band made of an elastic material such as urethane to a watch case.

[0002]

[Prior art]

 Conventionally, some wristwatch bands are made of an elastic material such as urethane. An example of a structure for attaching the watch band made of urethane or the like to the watch case is shown in FIGS. 4 to 6. The watch band 10 is made of an elastic material such as urethane, and a through hole 12 is formed in the width direction near the end thereof. On the other hand, the watch case 14 is integrally formed with a pair of extension parts 16, and each extension part 16 is provided with a fitting hole 18. When the distance from the end face 20 of the watch band 10 to the center of the through hole 12 is P and the distance from the end face 22 of the watch case 14 to the center of the fitting hole 18 is Q, P> Q is set. There is.

When attaching the watch band 10 to the watch case 14, the spring rod 24 shown in FIG. 5 is used. The spring rod 24 includes an outer cylinder 26, pivots 28 provided on both sides of the outer cylinder 26 and having one end inserted into the outer cylinder 26, and a direction in which the pivots 28 at both ends thereof are projected to the outside of the outer cylinder 26. The pivots 28 on both sides are set so as to be able to move toward the inside of the outer cylinder 26 against the spring 30 by an external force.

When attaching the watch band 10 to the watch case 14, first, the end face 20 of the watch band 10 is attached to the end face 22 of the watch case 14 with the spring rod 24 being passed through the through hole 12 of the timepiece band 10. Then, the watch band 10 is pressed against the watch case 14 side to be compressed. When the end face 18 of the watch band 10 is just in contact with the end face 22 of the watch case 14, as shown in FIG. 6, the position of the pivot 28 of the spring rod 24 is the same as that of the fitting hole 18 of the watch case 14. Are not in agreement. After that, by pressing the watch band 10 against the watch case 14 side, the spring rod 24 is brought close to the end face 22 side of the watch case 14, and the pivot 28 is aligned with the position of the fitting hole 18 of the watch case 14. 28 enters the fitting hole 18 of the watch case 14. In this way, by fitting the pivot 28 into the fitting hole 18 of the watch case 14, the watch band 10 is attached to the watch case 14. When the pivot 28 of the spring rod 24 is fitted into the fitting hole 18 of the watch case 14 and then the pressing of the watch band 10 against the watch case 14 side is released, a force for returning the compressed watch band 10 to the original works. . At this time, at the central position of the through hole 12 of the watch band 10, as shown in FIG. 6, if the distance from the end face 20 of the watch band 10 to the center of the through hole 12 is R, the distance R Becomes P> R> Q. As described above, due to the fitting of the pivot 28 of the spring rod 24 into the fitting hole 18 of the watch case 14 and the compressive force of the watch band 10 in the fitted state, the watch band 10 does not come off and the watch case 14 does not come off. Attached to.

[Problems to be solved by the device]

Conventionally, when the pivot 28 of the spring rod 24 is fitted into the fitting hole 18 of the timepiece case 14, the timepiece band 10 must be compressed toward the timepiece case 14 side. There is a drawback that it takes time to fit the watch case 14 into the fitting hole 18.

The present invention has been made in view of the above circumstances, and provides a watch band mounting structure that facilitates the work of fitting a spring rod into a hole of a watch case to improve workability. With the goal.

[0007]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention forms a through hole in a watch band made of an elastic material, forms a fitting hole in a watch case, and inserts a spring rod into the through hole. The watch band is attached to the watch case by fitting it into the fitting hole and joining the watch band to the watch case in a compressed state. In the watch band mounting structure, the first end face is located at a position adjacent to the watch band. And a second end face, and the distance from the first end face to the center of the through hole is set longer than the distance from the contact end face of the watch case with the watch band to the center of the fitting hole. Set the distance to the center of the through hole equal to or slightly shorter than the distance from the end face for contacting the watch band in the watch case to the center of the fitting hole, and connect the first end face and the second end face. You A protrusion is provided at a position, a recess is formed in the watch case adjacent to the end face to receive the protrusion, and the spring rod is fitted with the second end face of the watch band joined to the end face of the watch case. After fitting it into the hole, rotate the watch band around the spring rod to join the first end face to the end face of the watch case and compress the joint part of the watch band to the watch case, The protrusion of the watch band is housed in the recess of the watch case by rotating the rod around the center, and the protrusion housed in the recess serves as a detent against the rotation of the watch band in the opposite direction. It is a thing.

[0008]

[Action]

 In the present invention configured as described above, since the distance from the second end surface of the watch band to the through hole is the same as or slightly shorter than the distance from the end surface of the watch case to the hole, the second end surface of the watch band is connected to the watch case. The center of the through hole of the watch band is aligned with the center of the hole of the watch case by joining to the end surface of the watch band, and the spring rod inserted into the through hole of the watch band can be easily fitted into the hole of the watch case. After that, the watch band is rotated clockwise around the spring rod to join the first end surface of the watch band to the end surface of the watch case. Since the distance from the first end surface of the watch band to the through hole is longer than the distance from the end surface of the watch case to the hole, the elasticity of the watch band holds the watch band in a fixed positional relationship with the watch case. At this time, the protruding part of the watch band is set in the recess of the watch case, and the protruding part serves as a detent to further secure the fixed positional relationship between the watch band and the watch case.

[0009]

【Example】

 Next, the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing an embodiment of a watch band mounting structure according to the present invention, and FIG. 2 is a plan view of a watch band used in the present invention. The watch band 40 is made of an elastic material such as urethane, and a through hole 42 for inserting the spring rod 24 shown in FIG. 5 is provided in the width direction near the end thereof. In the timepiece band 40, two flat surfaces, that is, a first end surface 44 and a second end surface 46, which are parallel to the through hole 42 and are in a substantially right angle relationship, are provided near the through hole 42. For example, the first end surface 44 is a surface substantially perpendicular to the longitudinal direction of the watch band 40, and the second end surface 46 is a surface substantially parallel to the longitudinal direction of the watch band 40. If the distance from the center of the through hole 42 to the first end surface 44 is A, and the distance from the center of the through hole 42 to the second end surface 46 is B, then A 2> B. The distance A is set longer than the distance Q from the end surface 50 of the watch case 48 to the center of the fitting hole 54 of the extension 52 of the watch case 48. On the other hand, the distance B is set to be equal to or slightly shorter than the distance Q.

In the timepiece band 40, a protrusion 56 as a rotation stopper is formed at a place where the first end face 44 and the second end face 46 are connected to each other. If the distance from the center of the through hole 42 to the tip of the protrusion 56 is C, then C> A. On the other hand, below the end face 50 of the watch case 48, a recess 58 located inside the watch case 48 from the position of the end face 50 is formed. When the lower end of the end face 50 is the end point 60, the distance from the center of the fitting hole 54 of the elongated portion 52 of the watch case 48 to the end point 60 is set to be sufficiently shorter than the distance C.

When the watch band 40 is attached to the watch case 48, as shown in FIG. 1, the second end surface 46 of the clock band 40 is joined to the end surface 50 of the watch case 48, and the through hole 42 of the watch band 40 is joined. And the center of the fitting hole 54 of the watch case 48 are aligned. At this time, the distance B from the second end surface 46 of the watch band 40 to the through hole 42 is the same as or slightly shorter than the distance Q from the end surface 50 of the clock case 48 to the fitting hole 54. Allows the center of the through hole 42 of the watch band 40 and the center of the fitting hole 54 of the watch case 48 to be aligned without applying a compressive force. Therefore, the spring rod 24 inserted into the through hole 42 of the clock band 40 can be easily fitted into the fitting hole 54 of the watch case 48.

After attaching the timepiece band 40 and the timepiece case 48 to the state shown in FIG. 1 with the spring rod 24, the timepiece band 40 is rotated clockwise about the spring rod 24. At this time, the distance C from the center of the through hole 42 of the timepiece band 40 to the tip of the protruding portion 56 is sufficiently longer than the distance Q from the center of the fitting hole 54 of the timepiece case 48 to the end face 50. The protruding portion 56 of 40 is in a crushed state and the watch band 40 rotates. Then, the first end surface 44 of the watch band 40 is brought into contact with the end surface 50 of the watch case 48, and the protruding part 56 of the watch band 40 is set in the recess 58 of the watch case 48, so that the watch band 40 does not rotate ( (Figure 3).

In the state of FIG. 6, the distance A from the center of the through hole 42 of the watch band 40 to the first end surface 44 is greater than the distance Q from the center of the fitting hole 54 of the watch case 48 to the end surface 50. Since it is also set to be long, the watch band 40 is in a compressed state. By fitting the spring rod 24 into the fitting hole 54 of the watch case 48 and the repulsive force due to the compression of the clock band 40 in the fitted state, the watch band 40 is attached to the watch case 48 without coming off. Further, the protrusion 56 is housed in the recess 58 of the watch case 48, and the distance C from the center of the through hole 42 of the watch band 40 to the tip of the protrusion 56 is the center of the fitting hole 54 of the watch case 48. Since it is sufficiently longer than the distance to the terminal point 60 which is the lower end of the end face 50, the protrusion 56 serves as a detent and the clock band 40 rotates counterclockwise from the state of FIG. 3 unless a large external force is applied. There is nothing to do. That is, the watch band 40 is attached to the watch case 48 in the state of FIG. 3 unless a large external force is applied.

[0014]

[Effect of device]

 As described above, according to the watch band mounting structure of the present invention, when mounting the watch band and the watch case with the spring rod, it is not necessary to press the watch band as in the conventional case. The working time of work can be shortened.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a watch band mounting structure according to the present invention.

FIG. 2 is a plan view of a watch band used in the present invention.

FIG. 3 is a cross-sectional view showing a state in which the watch band is rotated from the state of FIG.

FIG. 4 is an exploded cross-sectional view of a watch band and a watch case in a conventional watch band mounting structure.

FIG. 5 is an enlarged sectional view of a spring rod.

FIG. 6 is a cross-sectional view showing an attached state of a conventional watch band.

[Explanation of symbols]

 24 spring rod 40 watch band 42 through hole 44 first end face 46 second end face 48 watch case 50 end face 54 fitting hole 56 protrusion 58 recess

Claims (1)

[Scope of utility model registration request] 1. A through hole is formed in a watch band made of an elastic material, a fitting hole is formed in a watch case, and a spring rod is inserted through the through hole and fitted into the fitting hole. In a watch band mounting structure for mounting a watch band to a watch case by joining the watch band to the watch case in a compressed state, a first end face and a second end face are provided at adjacent positions of the watch band, and Set the distance from one end face to the center of the through hole to be longer than the distance from the contact end face with the watch band to the center of the fitting hole in the watch case, and set the distance from the second end face to the center of the through hole in the watch case. It is set to be equal to or slightly shorter than the distance from the end face for contacting the watch band to the center of the fitting hole, and a protrusion is provided at a position connecting the first end face and the second end face to each other. A recess is formed in the case adjacent to the end face to receive the protrusion, and the spring rod is fitted into the fitting hole with the second end face of the watch band joined to the end face of the watch case. The protrusion of the watch band is rotated by rotating the spring rod to join the first end face to the end face of the watch case to compress the joint part of the watch band to the watch case and rotating the watch band around the spring rod. A watch band mounting structure, wherein the watch band is housed in a recess of the watch case, and the protruding part housed in the recess serves as a rotation stopper in a direction opposite to the rotation of the watch band.