JPH0736486Y2 - Watch band fasteners - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener used for a watch band or the like.

[0002]

2. Description of the Related Art Conventionally used fasteners for watch bands include those having a structure as shown in FIG. This stopper is composed of a metal fitting 2 having a rotatable hook-shaped two-folding member 1 and a metal fitting 4 having an engaging pin 3 that engages with the two-folding member 1, and a pair of watches are provided. It is attached to the ends of bands 5 and 6. A ball pin 7 is attached to both fittings, and a small chain 8 connects between the two ball pins 7. When connecting the timepiece band with this stopper, the engaging pin is sandwiched between the two folding members, and the two folding members are further rotated around the rotating shaft 9 to be housed and locked in the fitting body 2a. Was there. Further, even if the connection is disconnected, both metal fittings are connected by the small chain, so that the watch (not shown) has a structure that does not fall from the arm.

[0003]

However, in the above-described conventional clasp, the two metal fittings 2 and 4 are separated when the lock of the two-folding member 1 is released, so that the both metal fittings are prevented from falling from the wrist. 2 and 4 were connected by a small chain 8, but this small chain 8 is formed to have a certain allowance for attaching and detaching the watch bands 5 and 6 to the wrist. When it is attached to the arm, it is annoying because the extra amount is left and it hangs down from the arm. The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide a stopper for a watch band that is compact and does not easily come off due to an unexpected force.

[0004]

In order to achieve the above object, in the present invention, a watch band is formed by connecting a pair of male and female fittings attached to the ends of a pair of watch bands so as to overlap each other. In the connecting metal fitting, a rod-shaped main shaft projecting in the direction in which the female metal fittings are overlapped is attached to the male metal fitting so as to be rotatable around the axis, and a plate-shaped knob portion is provided at the tip of the main metal shaft. The female metal fitting is provided with a long hole-shaped through hole that allows the knob portion to pass therethrough, and the two metal fittings can be slid relative to each other. A locking portion for locking is provided, and when the knob portion is rotated through 90 degrees around the main shaft after passing through the through hole of the female metal fitting, the female metal fitting is sandwiched between the male metal fitting and the both metal fittings. Shoulder that holds the metal fittings in close contact There are a rotation stopper that holds the knob so that it cannot rotate around the main shaft when the connection is completed, and a click mechanism that stably holds the knob at the position when both fittings are inserted and the position when the connection is completed. It is characterized by being provided.

[0005]

The stopper for the watch band of the present invention is such that the plate-like knob portion is in the upright state when connecting the male bracket attached to one watch band and the female bracket attached to the other watch band. Then, the knob portion is inserted into the through hole of the female metal fitting and the two metal fittings are superposed. Then, when the knob is rotated 90 degrees with the main shaft in a state where the male fitting and the female fitting are in close contact with each other, the female fitting is sandwiched between the male fitting and the shoulder of the knob. At this time, the protrusion provided on the male metal fitting is fitted into the engaging hole of the female metal fitting, and the both metal fittings are locked so as not to slide with each other. Then, swing the knob around the swing axis orthogonal to the main axis and tilt it down to the position where it comes into close contact with the female metal fitting, resulting in a compact shape with few protruding parts as a whole, and the knob is clicked by this mechanism. Held in a state. At this time, the protrusion of the male fitting is fitted in the engaging hole of the knob portion, and the knob portion is restricted from rotating around the main axis.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A stopper for a watch band according to an embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the stopper of this watch band is a pair of bands 1
The metal fitting 12 and the female fitting 13 are connected to the hinges 12a and 13a at the tips of 0 and 11, respectively, and the band 1 is formed by connecting the fittings 12 and 13 to each other.
The structure is such that 0 and 11 are connected to each other.

In the male fitting 12, a rod-shaped main shaft 14 protruding in the plate thickness direction is provided on a male fitting main body 12b formed in a plate shape so as to be rotatable around an axis 14a. At the tip and the side surface of the tip portion of the main shaft 14, five planes 15, 16, 16, 1 are arranged so that adjacent surfaces are orthogonal to each other.
7 and 17 are formed, and pin holes 18 are provided through the pair of facing flat surfaces 17 and 17 on the side surfaces of the tip portion. A knob is attached to the tip of the main shaft 14. The knob portion 19 is provided with a notch groove 20 at one end, and pin holes 22 are provided through the walls 21 and 21 at both ends of the notch groove 20, and the notch groove 20 has flat surfaces 17 and 17.
By inserting the main shaft 14 so as to sandwich the pin 23 and inserting the pin 23 through the pin hole 22 and the pin hole 18 of the main shaft, the knob portion 19 swings perpendicularly to the axis 14a of the main shaft 14. It is swingable around the shaft 19a.

Further, as shown in FIG. 2, the cutout groove 20 is formed.
A storage hole 24 is provided in the bottom portion 20a of the
A compression coil spring 25 is housed inside 4. A ball 26 is slidably arranged between the compression coil spring 25 and the main shaft 14, and the ball 26 is constantly pressed against the main shaft 14 by the compression coil spring 25.
This constitutes the click mechanism 27. That is, when the knob portion 19 is swung around the swing shaft 19a, the ball 26 slides while pressing the surface of the spindle 14. Then, the compression coil spring 25 is stably extended in the most extended state, that is, the ball 26 is in the position of the plane 16 provided on the side surface of the spindle 14 and the plane 15 at the tip of the spindle 14 (states of FIGS. 2 and 3). Will be retained.

On the other hand, the female metal fitting 13 is formed in a plate shape, and the knob portion 19 of the male metal fitting 12 is formed at the center thereof.
The through hole 28 for inserting the is provided in the shape of an elongated hole along the length direction of the band 11 to be connected.

Here, the male fitting 12 is provided with a cylindrical projection 29 on the band 10 side with respect to the main shaft 14 so as to project in the same direction as the main shaft 14, and the female fitting 13 and the knob portion 19 are provided. Are provided with engaging holes 30 and 31, respectively. The projection 29 and the engagement hole 30 of the female metal fitting 13 constitute a locking portion 32 that locks the two metal fittings 12 and 13 so as not to slide with each other.
The engaging hole 31 of the knob portion 19 constitutes a rotation stopping portion 33 that limits the rotation of the knob portion 19 around the main shaft 14. The protrusion 29 has such a height that the plate thicknesses of the both 13 and 19 are combined so as to penetrate the female metal fitting 13 and the knob portion 19 at the same time.

In order to connect the stopper of the watch band thus constructed, first, the knob portion 19 of the male member 12 is connected.
Is rotated about the axis 14a of the main shaft 14 to a position along the length direction of the band 10, and is rocked about the rocking shaft 19a so as to be upright with respect to the male fitting body 12b. At this time, the ball 26 of the click mechanism 27 has the spindle 1
It is located on the flat surface portion 15 at the four tips. Next, female fitting 1
Insert the knob portion 19 into the through hole 28 of No. 3, both metal fittings 12,
Place 13 on top of each other for close contact. At this time, male fitting 1
The protrusion 29 of No. 2 is inserted into the engaging hole 30 of the female fitting 13,
Further, the knob portion 19 passes through the through hole 28 of the female fitting 13 and can rotate around the main shaft 14. Then, by rotating the knob portion 19 around the main shaft 14 by 90 degrees, the female metal piece 13 is made into the male metal piece 12 and the shoulder portion 19b of the knob portion 19.
And the metal fittings 12 and 13 are held in close contact with each other. Further, the knob portion 19 is rotated around the swing shaft 19a by 9
By swinging by 0 degree, the knob 29 is attached to the protrusion 29.
As shown in FIG. 3, the metal fittings 12, 13 and the tab 19 are overlapped with each other at the same time when the engaging hole 31 is fitted, and the tab 19 does not project from the stopper plate. Take shape. At this time, the ball 26 of the click mechanism 27 is on the flat surface 16 on the side surface of the tip of the main shaft, this state is stably maintained, and the connection of the stopper plate is completed.

Here, both metal fittings 12 and 13 are male metal fittings 13.
The protrusion 29 of the female fitting 12 and the engaging hole 30 of the female fitting 12 are fitted to each other. Therefore, the force for separating the fitting when the bands 10 and 11 are pulled is the fitting of the projection 29 and the engaging hole 30. Supported by. Therefore, no force is applied to the elongated shaft-shaped through hole 28 of the main shaft 14 and the female metal fitting 13 whose mounting portion is weak in strength due to the rotatable structure, so that the coupling strength of the clasp can be improved. At this time, the knob portion 1
9 is held along the female metal fitting 13 as described above, and the engaging hole 31 fits into the protrusion 29 of the male metal fitting 12, so that the rotation around the main shaft 14 is restricted and the stopper plate is prevented from coming off. It

In the above embodiment, the protrusion 29 of the male metal fitting 12 and the female metal fitting 1 fitted thereto are used as the locking portions 32.
The engaging hole 30 of No. 3 is provided, and the protrusion 29 and the engaging hole 31 of the knob portion 19 to be fitted thereto are provided as the rotation stopping portion 33 of the knob portion 19. You may provide a protrusion and may provide an engaging hole in the male metal fitting 12 and the knob part 19. Further, the locking portion 32 and the rotation stopping portion 33
The male fitting 12 and the female fitting 13 are provided with a protrusion as a locking portion 32 and a concave portion with the female fitting 13 respectively, and a protrusion protruding to the opposite surface of the concave portion and a knob portion 19 are provided as the rotation stopping portion 33. Good.

[0014]

[Effects of the Invention] As described above in detail, according to the stopper for the watch band of the present invention, the female metal piece is sandwiched between the shoulder portion of the knob portion provided on the male metal piece and the male metal piece, and the both metal pieces are closely attached. In addition to being held in the state, the click mechanism holds the projection of the male fitting in the engagement hole of the knob portion, so that there is an effect that it is difficult to disengage due to an unexpected force. Further, when the connection of the stoppers is completed, a plate-shaped male stopper, a female stopper, and a knob portion are overlapped with each other, so that the stopper stopper is a compact stopper stopper.
Further, since the male metal fitting and the female metal fitting are locked to each other by the locking portions provided on other than the main shaft, the coupling strength can be improved and therefore the durability of the stopper plate can be improved. be able to.

[Brief description of drawings]

FIG. 1 is a perspective view showing a stopper of a watch band according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view showing a state in which the stopper of FIG. 1 is being inserted.

FIG. 3 is a vertical cross-sectional view showing a completed state of connection of the fastener of FIG.

FIG. 4 is a perspective view showing a stopper of a conventional watch band.

[Simple explanation of symbols]

 10, 11 Watch band 12 Male fitting 13 Female fitting 14 Main shaft 14a Shaft center 19 Knob 19a Swing shaft 19b Shoulder 27 Click mechanism 28 Through hole 32 Locking part 33 Rotation stop

Continuation of the front page (56) References Kaihei 3-127535 (JP, U) Shokai 64-57276 (JP, U) Shokai 63-66915 (JP, U) Shokai Hei 3-20671 (JP , U) Actually open 63-120819 (JP, U) Actually open 3-127535 (JP, U) Actually open 59-143321 (JP, U) Actually public 28-1685 (JP, Y1) Actually public Sho 42-637 (JP, Y1) Actual public 37-22261 (JP, Y1) Actual public 35-17774 (JP, Y1) Actual public 10-12356 (JP, Y1) Actual public 63-94 (JP, Y1)

Claims (1)

[Scope of utility model registration request] 1. A fastener for connecting a watch band by connecting a male fitting (12) and a female fitting (13) attached to the ends of a pair of watch bands (10, 11) so as to overlap each other. A rod-shaped main shaft (14) protruding in a direction in which the female metal members are stacked is attached to the male metal member so as to be rotatable around an axis (14a), and a plate-shaped knob portion (19) is provided at a tip end of the main shaft. ) Is swingably provided around a swing shaft (19a) orthogonal to the main axis, and the female metal fitting is provided with an elongated hole-like through hole (28) for penetrating the knob portion. Is provided with a locking portion (32) for locking the mutual sliding of the two, and the knob portion is rotated 90 degrees around the main axis after the knob portion passes through the through hole of the female metal fitting. Insert the female metal fitting between the male metal fitting and Shoulder to hold the bracket to close contact with (19b), the detent portion in which the knob portion is held so as to not rotate the spindle about a connecting completion state (33)
And a click mechanism (27) for stably holding the knob portion at a position when both the metal fittings are inserted and at a position when the connection is completed, the metal fitting for a watch band.