JPH08313651A - Hand type clock - Google Patents

Abstract

PURPOSE: To control the upward motion of a clock movement, and to use a dial being flexible in a sheet-like state. CONSTITUTION: A protrusion 3 protruding into a clock movement containing hole 2 is provided at the lower surface side of a frame-like housing 1. A clock movement 5 contained from the upper side in the hole 2 is fixed to the protrusion 3 with a screw 10. Thus, not only the downward motion of the movement 5 but also the upward motion are controlled. As a result, a dial having flexibility in a sheet-like state can be used. In this case, an hour wheel suppressing plate 10 made of a thin metal plate is disposed on the upper surfaces of the housing 1 and the movement 5, a sheet-like electroluminescent display element 26 having flexibility is disposed on the upper surface, and a transparent printed sheet 27 is disposed on the upper surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pointer type timepiece.

[0002]

2. Description of the Related Art In a conventional pointer type timepiece, a timepiece movement in which a step motor, a train wheel mechanism and the like are attached to a main plate is stored in a timepiece movement storage hole of a frame-shaped housing from above, and these are placed in a timepiece case. There is a structure that is stored from below. In this case, the timepiece movement accommodated from the upper side in the timepiece movement accommodating hole of the housing is restricted to move downward, but is not restricted to move upward. Therefore, a hard dial is attached to the upper surface of the housing, and the hard dial restricts the upward movement of the timepiece movement.

[0003]

As described above, in the conventional pointer type timepiece, since the hard dial is used, there is a problem that the material and type of the dial are restricted. For example, if a flexible sheet-shaped dial plate is simply used, the upward movement of the timepiece movement cannot be reliably regulated, and the timepiece movement moves finely in the vertical direction together with the hands. It is not preferable because it gives an impression as. An object of the present invention is to provide a pointer type timepiece that can regulate upward movement of the timepiece movement and can use a flexible sheet-shaped dial.

[0004]

According to the first aspect of the present invention,
A timepiece movement, a frame-shaped housing in which a storage hole for storing the timepiece movement is formed, and a flexible dial arranged on the upper surface of the housing and the timepiece movement, the lower surface side of the housing A projecting portion that projects into the storage hole is provided, and the timepiece movement is fixed to the projecting portion with a screw.

[0005]

According to the first aspect of the invention, since the timepiece movement is fixed to the housing by the fixing means such as a screw, the upward movement of the timepiece movement can be restricted. As a result, a flexible dial can be arranged on the housing and the timepiece movement, and therefore a flexible sheet-shaped plate can be used.

[0006]

1 to 6 are shown for explaining a first embodiment of the present invention, in which FIG. 1 is a bottom view of a main part of a pointer type timepiece, and FIG. 2 is AA of FIG. FIG. 3 is a cross-sectional view taken along the line showing a case where the upper and lower parts are in a normal state, and FIG.
4 is a sectional view taken along line B, FIG. 4 is a bottom view of the housing, FIG. 5 is a plan view showing a state where the timepiece movement is stored in the timepiece movement storage hole of the housing, and FIG. The top view of the attached state is shown, respectively.

First, as shown in FIGS. 2 and 4, the timepiece movement accommodating hole 2 is formed in the central portion of the frame-shaped housing 1.
Is provided. Also, on the lower surface side of the housing 1,
A protrusion 3 having a predetermined shape is provided to protrude into the timepiece movement storage hole 2. Circular holes 4 are provided at two predetermined portions of the protruding portion 3. And, FIG. 1, FIG. 2 and FIG.
As shown in, the timepiece movement storage hole 2 accommodates the timepiece movement 5 from above.

The timepiece movement 5 is provided with a pointer shaft composed of a hour wheel 7 and the like on the upper surface side of the central portion of the movement main body (base plate) 6. As an example, the hour wheel 7 includes a step motor 8 provided at a predetermined position of the movement body 6.
The rotation is transmitted through a train wheel mechanism 9 provided at another predetermined position of the movement body 6 and is rotated once in 12 hours in a clockwise direction together with an hour hand (not shown). As shown in FIGS. 1 and 2, the timepiece movement 5 is attached to the housing 1 by the screw 10 inserted into the two circular holes 4 (see FIG. 4) of the housing 1 being screwed into the movement body 6. It is fixed.

In this case, as shown in FIG. 3, in the portion of the circular hole 4 of the housing 1, the protruding portion 3 of the housing 1 is formed.
The stator 11, the coil core 12, and the train wheel bridge 13 of the step motor 8 are interposed between the and the movement main body 6. Further, a boss 14 is provided at a predetermined position of the movement body 6, and a circular hole 15 is provided in the axial center portion of the boss 14. Then, with the circular hole 16 of the stator 11 and the circular hole 17 of the coil core 12 fitted in the boss 14, the screw (in this case, a tapping screw) 10 is inserted into the circular hole 4 of the housing 1 and the circular hole of the train wheel bridge 13. The stator 11, the coil core 12, and the train wheel bridge 13 are attached to the movement body 6 by being inserted through 18 and screwed into the circular hole 15 of the boss 14. Therefore, in this case, there is no need for a dedicated screw for fixing the timepiece movement 5 to the housing 1, and the number of parts can be prevented from increasing. In FIG. 3, reference numeral 1
Reference numeral 9 represents a coil of the step motor 8.

As described above, since the timepiece movement 5 is fixed to the housing 1 by the screw 10, not only the downward movement of the timepiece movement 5 but also the upward movement thereof can be restricted. As a result, as will be described later, it becomes possible to use a flexible sheet-shaped one such as a dial.

Continuing the description of the rest of the structure of this pointer type timepiece, as shown in FIG. 2, the hour wheel holding plate made of a thin metal plate made of a ferromagnetic material is provided on the upper surfaces of the housing 1 and the timepiece movement 5. 20 are arranged. As shown in FIG. 6, the hour wheel presser plate 20 includes engaging pieces 21 bent at predetermined two positions and engaging recesses 22 formed at predetermined two positions on the upper surface side of the housing 1 (see FIG. 5). (Refer to FIG. 5), the engaging pieces 23 are press-fitted to each other and are bent at two other predetermined positions, and the engaging recesses 24 are formed at predetermined two positions on the upper surface side of the movement body 6 (see FIG. 5). It is attached to the upper surfaces of the housing 1 and the timepiece movement 5 by being press fitted. In this state, the gear portion of the hour wheel 7 is held against the upper surface of the movement body 6 by the hour wheel holding plate 20 and is restricted from moving upward. Further, the cylinder portion of the hour wheel 7 penetrates a circular hole 25 formed at a predetermined position of the hour wheel restraint plate 20 and is projected above the hour wheel restraint plate 20.

Next, as shown in FIG. 2, the hour wheel restraining plate 20.
A flexible sheet-shaped electroluminescent display element 26 is disposed on the upper surface of the electroluminescent display element 26, and a flexible print sheet 27 is disposed on the upper surface of the electroluminescent display element 26. The print sheet 27 constitutes a flexible dial. The print sheet 27 is made of, for example, a transparent sheet with numbers or the like indicating the time of 1 to 12 printed on the upper surface or the lower surface thereof. The electroluminescence display element 26 is for illuminating a pointer. The cylindrical portion of the hour wheel 7 penetrates through the circular holes 28 and 29 formed in the electroluminescent display element 26 and the print sheet 27 at predetermined positions, and is projected above the print sheet 27.

A ring-shaped dial plate restraining member 31 is arranged on the upper surface of the printing sheet 27. Dial holding member 31
Are engaged with engaging pieces 32 formed at predetermined four positions on the outer peripheral portion with engaging portions 33 (see FIGS. 5 and 6) formed at predetermined four positions on the outer peripheral surface of the housing 1. As a result, it is attached to the upper surface side of the housing 1. In this state, the print sheet 27 and the electroluminescence display element 26 are held on the upper surface of the hour wheel holding plate 20 by the dial holding member 31. In this case, the hour wheel holding plate 20 is provided with the electroluminescence display element 2
It also serves as a reinforcing plate for reinforcing 6.

In the first embodiment, as shown in FIG. 3, the screw 10 is used to fix the timepiece movement 5 to the housing 1, but the present invention is not limited to this. For example, as in the second embodiment shown in FIG. 7, the boss 1
4 is lengthened to some extent as shown by the dashed line, and this boss 1
4, circular hole 16 of stator 11 and circular hole 1 of coil core 12
7, circular hole 18 of train wheel bridge 13 and circular hole 4 of housing 1
Boss 1 which is fitted into the housing 1 and protrudes from the circular hole 4 of the housing 1.
4 is melted and crimped as shown by a solid line to form the stator 11, the coil core 12, and the train wheel bridge 13.
May be attached to the movement body 6 and the timepiece movement 5 may be fixed to the housing 1. In this case, the screw 10 in the case of the first embodiment becomes unnecessary, and the number of parts can be reduced. Further, since the boss 14 serves both as a boss for fixing the timepiece movement 5 to the housing 1 and as a boss for attaching the stator 11 and the like to the movement main body 6, the boss 14 is prevented from being melted and caulked. can do. It should be noted that the protrusion 3 of the housing 1 may be provided with a boss and the movement body 6 may be provided with a circular hole.

Further, as in the third embodiment shown in FIG. 8, a flange portion 41 is provided on the upper portion of the outer peripheral surface of the movement body 6, and engaging pieces 42 are provided at a plurality of locations on the lower portion of the outer peripheral surface.
Further, a ring-shaped engaging portion 43 is provided at the upper portion of the wall surface of the timepiece movement storage hole 2 of the housing 1, and engaging portions 44 are provided at a plurality of positions at the lower portion of the wall surface, and the timepiece movement 5 is engaged in the timepiece movement storage hole 2 from above. The joint piece 42 is stored while elastically deforming, and the flange portion 41 is engaged with the engagement portion 43.
The movement of the timepiece movement 5 is restricted by engaging with the engaging portion 42, and the engagement piece 42 is engaged with the engaging portion 44, so that the movement of the timepiece movement 5 is restricted by upward movement. The movement 5 may be fixed to the housing 1.

Further, in the first embodiment, the dial plate is composed of the electroluminescence display element 26 and the printing sheet 27, but the present invention is not limited to this. For example, as the flexible dial plate, one having the time character printed on the upper surface of the electroluminescence display element 26, or one having the time character printed on an opaque flexible sheet may be used. . Further, instead of the electroluminescence display element 26, an electronic component such as a flexible sheet-shaped solar panel may be used.

[0017]

As described above, according to the first aspect of the invention, since the timepiece movement is fixed to the housing by the fixing means such as a screw, the upward movement of the timepiece movement can be restricted. it can. As a result,
A flexible dial can be arranged on the housing and the timepiece movement, and thus a flexible sheet can be used as the dial.

[Brief description of drawings]

FIG. 1 is a bottom view of a main part of a pointer type timepiece according to a first embodiment of the invention.

FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, showing a case where the upper and lower sides are in a normal state.

FIG. 3 is a sectional view taken along the line BB of FIG. 1;

FIG. 4 is a bottom view of the housing.

FIG. 5 is a plan view showing a state where the timepiece movement is stored in the timepiece movement storage hole of the housing.

FIG. 6 is a plan view showing a state in which a hour wheel restraint plate is attached to upper surfaces of a housing and a timepiece movement.

FIG. 7 is a sectional view similar to FIG. 3 of a pointer type timepiece according to a second embodiment of the present invention.

FIG. 8 is a sectional view similar to FIG. 2 of a pointer type timepiece according to a third embodiment of the invention.

[Explanation of symbols]

 1 Housing 2 Watch Movement Storage Hole 3 Projection Part 5 Watch Movement 6 Movement Body (Main Plate) 8 Step Motor 10 Screw 20 Cylinder Holding Plate 26 Electroluminescence Display Element 27 Printing Sheet 31 Dial Plate Holding Member

Claims (6)

[Claims] 1. A timepiece movement, a frame-shaped housing in which a storage hole for storing the timepiece movement is formed, and a flexible dial arranged on the upper surface of the housing and the timepiece movement, A pointer-type timepiece characterized in that a protruding portion protruding into the housing hole is provided on the lower surface side of the housing, and the timepiece movement is fixed to the protruding portion with a screw. 2. The pointer type timepiece according to claim 1, wherein the screw also serves as a screw for fixing at least the stator and the coil core of the step motor to the timepiece movement. 3. A timepiece movement, a frame-shaped housing having an accommodation hole for accommodating the timepiece movement, and a flexible dial arranged on the upper surface of the housing and the timepiece movement, A protrusion is provided on the lower surface side of the housing so as to protrude into the accommodation hole, and a boss provided on one of the predetermined portion of the protrusion and the corresponding movement main body of the timepiece movement is fitted into the hole provided on the other. By combining and crimping by melting the tip of the boss protruding from this hole,
A pointer-type timepiece characterized in that the timepiece movement is fixed to the housing. 4. The pointer-type timepiece according to claim 3, wherein the boss also serves as a boss that fixes at least the stator and the coil core of the step motor to the timepiece movement. 5. A timepiece movement, a frame-shaped housing having an accommodation hole for accommodating the timepiece movement, and a flexible dial arranged on the upper surface of the housing and the timepiece movement, An engaging piece is provided on the lower part of the outer peripheral surface of the timepiece movement, an engaging part is provided on the lower part of the wall surface of the housing hole of the housing, and the engaging piece is engaged with the engaging part, whereby the timepiece movement is A pointer type timepiece characterized by being fixed to the housing. 6. The pointer type timepiece according to any one of claims 1 to 5, wherein the flexible dial is made of a sheet-shaped electroluminescent display element.