JPH025432Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a watch with a stand. The purpose is to simplify the stand structure, make it thinner, stabilize the opening and closing of the stand, make it easier to assemble, make it more robust,
Comfortable opening/closing operations and aesthetic appeal. The main means is to make use of the elastic change of the stand itself to bring it into contact with the main body to perform click opening and closing operations. The present invention will be explained using drawings.

FIG. 1 is a perspective view of the back of a timepiece according to the present invention, in which a shows the stand closed and b shows the stand open.
Reference numeral 1 indicates the watch body, and reference numeral 2 indicates a stand, which is stably held both when opened and closed. From the closed state shown in Figure 1a, insert a nail or similar into the dredger 3 and lift the tip 4 against the closing stabilizing force until the opening angle passes around 45 degrees. It is opened and held in that state as shown in Figure 1b. An attempt is made to tighten the stand 2 from the open state shown in FIG. 1b in the direction of the arrow 5 against the opening stabilizing force. When the opening angle passes around 45 degrees, it is energized by the closing stabilizing force and snaps into the first position.
It is closed and held in that state as shown in Figure a. Opening and closing of the stand is performed with the above-described click operation. 6 in FIG. 1b is a sink in which the plate-shaped stand 2 is housed, and when closed, it becomes a thin watch that is convenient to carry. Furthermore, the sink 6 forms a part of the back surface of the main body 1, and even when the stand 2 is open, it covers the clock mechanism inside the main body, which maintains the beauty and prevents dirt from entering.

Reference numeral 7 in FIG. 1a is an operating cam provided near the center of the support side 8 of the stand, and is operated by resiliently engaging with a fixed cam on the main body side, which will be described later. From the sink 6 of the main body 1, so that it overlaps the support side 8 of the stand 2,
Adjacent thereto, a wall plate, which will be described later, is formed. Even if an unreasonable force is applied to the stand 2 in the direction of arrow 25 toward the main body 1 in the open state of the stand as shown in FIG. 1b, the clock mechanism will not be damaged because the wall plate supports the stand 2.

Reference numeral 9 denotes an elastic hole provided close to the inside of the actuating cam 7 to provide elasticity to the actuating cam 7.

The stand 2 is provided with an upper shaft on the upper side 10 and a lower shaft on the lower side 11 so as to protrude parallel to the supporting side 8, and the vertical shaft is inserted into the upper and lower holes provided in the main body 1 and supported to open and close. There is.

FIG. 2 is a cross-sectional view near the center to explain the operation of the stand shown in FIG. 1, in which a shows the closed state, b shows the open state around 45 degrees, and c shows the open state. Reference numeral 12 denotes a fixed cam provided on the main body 1, which is sloped at 45 degrees in FIG. 2, and the operating cam 7 operates by elastically contacting this fixed cam 12. In the closed state a, the lower side 13 of the actuating cam 7 is pressed against the slope 12 to generate a closing torque on the stand 2 in the direction of arrow 14, thereby stabilizing the closed state. In the open state, the upper side 15 of the actuating cam 7 is pressed against the slope 12 to generate an opening torque in the direction of arrow 16 on the stand 2, thereby stabilizing the open state.
12' is a wall for supporting the stand 2 in the open state, and has a positioning and reinforcing function. 17 indicates the support axis. When the operating cam 7 is brought from the state a or c to the 45 degree open state shown in FIG. Tip 1 indicated by a two-dot chain line from the axis 17
The distance to 8″ is from the axis 17 to the upper and lower sides 15, 13
Since it is larger than the distance up to the point, the elastic force due to size change is maximized, creating an unstable condition. If the stand angle is shifted even slightly from the angle shown in FIG. 2b, the stand 2 automatically snaps into the closed state (a) or the open state (b) guided by the closing torque in the direction of arrow 14 or the opening torque in the direction of arrow 16. The width of the elastic hole 9 is displaced to the minimum at point b, and the tip 18'' elastically transitions to 18'.The elastic hole 9 distributes elasticity suitable for each state. Without 9, manufacturing tolerances would be tight or the elasticity would be improperly distributed in each state.

3 is a plan view a, a side view b, and a central sectional view c showing the stand of FIG. 1. FIG. An upper shaft 18 projects from the upper side 10 of the stand 2, and a lower shaft 19 projects from the lower side 11. 20 is close to the upper side 10 and supports the supporting side 8
This is an interrupt from. If you apply a pinching force as shown by arrow 21 when assembling stand 2, interruption 2 will occur.
The width of the shaft 1 is reduced, and the dimension between the shafts 18 and 19 is shortened, so that it is fitted into the side hole of the main body 1, and when the force is released, it elastically returns and is supported. The interrupt 20 may be provided on the lower side 11 side or on either the upper or lower side.

4 is a plan view a and a central sectional view b of the main body of FIG. 1. FIG. Reference numerals 22 and 23 are an upper hole and a lower hole made by punching, and support the upper shaft 18 and lower shaft 19 of the stand 2. 12 is stand 2
This is the slope of the fixed cam 12 that is provided adjacent to the wall plate 24 so as to be in contact with the operating cam 7 . Reference numeral 24 is a wall plate that is an extension of the bottom of the sink 6, and as explained in FIG.
Even if pressure is applied in the direction of arrow 25 to
4 blocks the support side 8 of the stand and does not damage the clock mechanism. In order to form the wall plate 24, it is preferable that the stand 2 be assembled from the back and outside of the main body 1, and the above-mentioned cut-off 20 is required for this assembly as well. If it were to be assembled from the inside of the back, it would be difficult to stop the pressure from the stand in the direction of arrow 25, which could damage the clock mechanism. The type of device assembled from the outside according to the present invention is easy to prevent breakage.

The effects of the above-described embodiments are as follows: (1) Since the click operation is performed by the elasticity generated by the displacement of the stand itself, the metal click spring that was commonly used in the past is not required, simplifying the structure and making it possible to make it thinner. I made it.

(2) Since the elastic hole 9 is provided close to the operating cam 7 in order to widen the elastic range of the stand and make the elasticity appropriate, manufacturing tolerances are widened, click operability is improved, and stability is improved.

(3) Since there is an intrusion 22 on the supporting side of the stand, compression assembly is possible, and members for assembling the bearing are not required, simplifying the structure.

(4) Since the stand hits the wall plate of the main body, it will not damage the clock mechanism.

(5) The sink 6 is a back cover, so you can keep an eye on it even when the stand is opened.

Although the fixed cam 12 has a slope as an example, it may have another shape, and the operating cam 7 may be adjusted accordingly.
can also take shapes other than cases.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the back of a timepiece according to the present invention, in which a shows the stand closed and b shows the stand open.
FIG. 2 is a cross-sectional view of the stand near the center in order to explain the operation of the stand in FIG. 1, in which a shows the closed state, b shows the open state around 45 degrees, and c shows the open state. 3a, b, and c are a plan view and a side view showing the stand of FIG. 1, and FIGS. 4a and 4b are a plan view and a sectional view of the main body of FIG. 1. 1... Main body, 2... Stand, 7... Operating cam, 8... Support side, 9... Elastic hole, 10... Upper side, 11... Lower side, 12... Slope that is a fixed cam, 18... Upper axis, 19...lower axis, 22...upper hole, 23...lower hole, 24...wall plate.

Claims (1)

[Scope of claim for utility model registration] The back of the watch body 1 has upper and lower holes, and the stand 2
has a vertical shaft that is inserted and supported in the upper and lower holes, and the stand 2 has an elastically contracting cut-in 20 between the upper and lower shafts of the support side 8, and the stand 2
The main body 1 should be supported by the main body 1 from the outside of the back of the main body 1 by elastically contracting between the upper and lower axes, and the main body 1 should have a sink 6 on the back surface in which the stand 2 is sunk and accommodated, and a sink 6 adjacent to the sink 6. The main body 1 has a fixed cam 12 such as a slope further adjacent to the wall plate 24, and the stand 2 has a wall plate 24 that blocks the support side 8 of the stand 2. The operating cam 7 has a tip end 18'' and an elastic hole 9 adjacent to the inner side of the operating cam 7, and the operating cam 7 elastically engages with the fixed cam 12 by the compressive repulsion force of the elastic hole 9. The watch is equipped with a click stand, characterized in that the stand 2 is configured to clickly select bistable states of opening and closing with respect to the main body 1.