JP3633446B2 - Clock with solar battery - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a timepiece with a solar battery, and more particularly to a timepiece structure suitable for constituting a wristwatch driven using electric power generated by a solar battery.
[0002]
[Prior art]
Generally, in a watch body structure, a movement is supported by an inner frame positioned inside an exterior case, and a dial is attached to the front side of the movement, that is, the side where a display window is provided.
[0003]
By the way, as the above-described wristwatch, a wristwatch with a solar cell that is built in a solar cell and operates by electric power generated by the solar cell is known. In this wristwatch with a solar battery, a movement is accommodated in the exterior case, and a thin plate-like solar battery is disposed on the front side of the movement. In this case, it may be installed with the light receiving surface of the solar cell exposed so that it can be seen as it is through the display window, but in many cases, as an alternative to the above dial, translucent plastic or ceramic is used. The translucent plate is arranged so as to cover the light receiving surface of the solar cell.
[0004]
As a wristwatch with a solar cell provided with a display unit having a structure in which a light transmitting plate is arranged on a solar cell, a solar cell receiving member for holding the solar cell is attached on the ground plate of the movement, and the solar cell is attached to the solar cell receiving member After mounting, a translucent plate is further arranged on the front side. Such a structure is described, for example, in JP-A-10-239453. In the structure described in this publication, an engagement portion for the movement is provided on the back side portion of the solar cell receiving member, and an engagement hook for engaging and holding the solar cell on the front side portion of the solar cell receiving member; An engagement hook for engaging and holding the optical plate is provided. Therefore, by using this solar cell receiving member, it is possible to integrally hold the movement, the solar cell, and the light transmitting plate.
[0005]
[Problems to be solved by the invention]
However, in the above conventional wristwatch with a solar cell, the inner frame, the movement, the solar cell receiving member, the solar cell, the transparent cell, from the back side (back cover side) to the front side (display window side) inside the exterior case. Since the light plates are sequentially arranged, there is a problem that it is difficult to reduce the thickness of the watch body.
[0006]
Further, in the case of a wristwatch with a solar battery, the number of parts around the display unit is increased as compared with a normal battery-powered wristwatch, and there is a problem that assembly work becomes complicated.
[0007]
Furthermore, a brittle material such as ceramics or glass may be used for the translucent plate. When such a brittle material is used for the translucent plate, a buffer structure is provided to prevent the translucent plate from being damaged. Since it is necessary to provide it, the watch body becomes even thicker.
[0008]
Therefore, the present invention solves the above problems, and an object of the present invention is to provide a main body structure that can be configured to be thinner than in a conventional watch with a solar cell. Another object of the present invention is to provide a main body structure which can reduce the number of parts and can be easily assembled. Furthermore, another object of the present invention is to provide a body structure having high impact resistance.
[0009]
[Means for Solving the Problems]
The solar cell timepiece of the present invention is a solar cell timepiece having a solar cell, a movement, the solar cell and the movement accommodating and positioning, and a support frame that comes into contact with the inner surface of the outer case, The movement is provided with an outer peripheral step on the front side, the support frame is provided with an accommodating portion having an opening for accommodating the movement from the front side, and a support step for supporting the movement from the rear side. And an engagement hook that engages with the outer peripheral step from the front side, and a second hook that holds the outer edge of the light receiving surface of the solar cell.
Here, when a conductive portion for conductively connecting the solar cell and the movement is provided, the second hook is disposed in the vicinity of the conductive portion so that the conductive connection state of the conductive portion is Desirable for reliability.
[0010]
Since the support frame body holds the movement by the support step portion, it is not necessary to position the movement by the middle frame as in the prior art, and it is not necessary to attach the solar cell via the solar cell receiving member attached to the movement. It is possible to reduce the thickness of the internal structure. Further, if the support frame, the movement, and the solar cell are integrated at the time of assembly, and the integrated product is housed in the outer case as it is, the assembly of the timepiece is completed, so that the assembly operation can be easily performed. Furthermore, since the movement, the solar cell, and the support frame are held together, the impact resistance of each component can be increased. Furthermore, the second holding structure can hold the solar cell against the stress (elastic force) of the contact spring (conduction spring) arranged between the solar cell and the movement, so that the pointer can be attached. It can be done easily.
Furthermore, since the movement can be received from the front side into the housing part of the support frame, the mounting direction of the movement and the solar cell with respect to the support frame is the same, so that the assembly work can be further facilitated. Further, since both the movement and the solar cell can be held on the front side when viewed from the support frame, the thickness dimension of the internal structure can be further reduced.
Furthermore, there is a gap between the engagement hook and the solar cell, that is, the engagement hook is provided on the back side from the front surface of the movement, so that a part of the support frame body is located between the movement and the solar cell. Since the engagement hook does not come into contact with the solar cell even without the interposition, it can be arranged without providing a gap between the movement and the solar cell, and the internal structure can be thinned.
In addition, the second hook eliminates the need to interpose the structural portion of the support frame between the movement and the solar cell, thereby further reducing the internal structure.
[0011]
The support frame is preferably formed of, for example, a synthetic resin, and is preferably integrally formed by an injection molding method or the like.
[0017]
The second hook is preferably in contact with the inner surface of the outer case from the back side. Thereby, since the support frame is also supported on the front side inside the outer case, the impact transmitted to the structural members of the internal structure such as the movement and the solar cell can be mitigated by the elasticity of the second hook and the support frame. it can.
[0018]
It is preferable that the movement and the solar cell are arranged so as to directly overlap each other. That is, it is preferable that the front surface of the movement and the back surface of the solar cell are arranged opposite to each other or in contact with each other. Thereby, since another member does not intervene between a movement and a solar cell, an internal structure can be made thin.
[0019]
It is preferable that a light transmissive plate is disposed on the light receiving surface side of the solar cell, and the support frame body is provided with a third holding structure for holding the light transmissive plate.
[0020]
In the third holding structure, a third engagement hook configured to receive the light transmitting plate from the light receiving surface side of the solar cell and having an engaging portion for holding an outer edge portion of the light transmitting plate. Is preferably provided.
[0021]
The third engagement hook is preferably in contact with the inner surface of the exterior case from the back side. Since the third engagement hook is in contact with the exterior case, the support frame is supported from the front side by the exterior case, so that the impact force on the movement, solar cell, translucent plate, etc. is reduced. 3 can be relaxed by the elasticity of the engagement hook and the support frame.
[0022]
The translucent plate includes a translucent member and an attachment frame attached to an outer edge portion of the translucent member, and the attachment frame is preferably held by the third holding structure. By holding and fixing the translucent member via the mounting frame, damage to the translucent member when subjected to impact force can be reduced, and impact resistance can be improved. In particular, when the translucent member is made of a brittle material such as glass, shell material, ceramic material, etc., it is effective for preventing the crack. The mounting frame is preferably made of a metal material having high rigidity and elasticity. You may comprise a synthetic resin.
[0023]
It is preferable that the mounting frame is in contact with the solar cell, and a gap is formed between the light receiving surface of the solar cell and the translucent member. Since the translucent plate is not in direct contact with the solar cell due to the gap, stress is transmitted through the mounting frame, so it is difficult to receive impact force from the side where the movement or solar cell is placed, and impact resistance is improved. It can be improved.
[0024]
Here, it is preferable that a cushioning material is interposed between the mounting frame and the solar cell in order to further improve the impact resistance. The buffer material is preferably made of an elastic material such as PET (polyethylene terephthalate), other synthetic resins, or rubber.
[0025]
The support frame is preferably positioned by an exterior case. Here, the exterior case refers to a case body appropriately configured by various exterior members such as a case, a glass edge, and a back cover in the case of a wristwatch, for example.
[0026]
In addition, it is desirable that a plurality of the second hooks and the third engagement hooks are provided at different positions in the outer circumferential portion of the support frame body as viewed in the circumferential direction. Further, the first hook, the second hook, and the third engagement hook are each preferably configured to be elastically deformable, and are preferably provided integrally with the support frame. .
[0027]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of a timepiece with a solar cell according to the present invention will be described in detail with reference to the accompanying drawings. The embodiment described in detail below shows an example in which the present invention is applied to the main body structure of a wristwatch. However, the present invention is not limited to a wristwatch, and is similarly applied to a pocket watch, other portable watches, and other various watches. It can be done.
[0028]
FIG. 1 shows the internal structure of a wristwatch 100 with a solar cell according to the present embodiment in a cut surface at 12:00 or 6 o'clock, and a part thereof is cut at 1 o'clock, 2 o'clock, 7 o'clock, or 11 o'clock. It is the longitudinal cross-sectional view shown by the surface. FIG. 2 is a longitudinal sectional view showing the internal structure of the wristwatch 100 by a cut surface in a push-up structure portion provided in a plurality at the bottom of a support frame to be described later.
[0029]
The exterior case 110 of the present embodiment includes an annularly formed body 111, a glass edge 112 attached to the front side of the body 111, and a back cover 114 attached to the back side of the body 111. A transparent display window 113 made of glass or the like is attached to the glass edge 112. The outer case of the present invention may have any structure such as a so-called one-piece type case body without a back cover or a case body without a glass edge.
[0030]
Inside the exterior case 110, a movement 120, a support frame 130 formed by integrally molding synthetic resin by an injection molding method or the like, and a thin plate solar cell engaged and held on the front side of the support frame 130 140 and the translucent plate 150 engaged and held on the front side of the solar cell 140 are accommodated.
[0031]
The movement 120 includes a large number of components incorporated in a ground plate 121 formed of a synthetic resin or the like, and includes a large-capacity capacitor, a chemical secondary battery, and the like for storing electric power generated by the solar cell 140. And a built-in clock control circuit and drive motor (not shown). This drive motor moves the hands 123a (hour hand, minute hand, etc.) provided on the hand portion 123 under the control of the timepiece control circuit.
[0032]
The support frame 130 includes an accommodation hole 131 that forms an accommodation space for accommodating the movement 120 from the front side. The opening provided on the front side of the accommodation hole 131 is configured to allow the movement 120 to be introduced. In addition, a support step 131 a facing the front side is provided on the inner peripheral surface of the accommodation hole 131. The support step 131a abuts on an outer peripheral step 121a formed on the ground plate 121 of the movement 120 and supports the movement 120 from the back side.
[0033]
Around the accommodation hole 131, a plurality of engagement hooks 132 (two in each case, one at each of the two o'clock and six o'clock sides) are provided. The end has an engaging surface that protrudes toward the inner peripheral side and faces the rear side. The engagement hook 132 is engaged with the outer peripheral step 121b provided on the outer peripheral portion of the movement 120 from the front side. Since the engagement hook 132 is configured to be elastically deformed so as to protrude and retract in the radial direction of the movement 120, that is, in the left-right direction in the drawing, the movement 120 is introduced into the accommodation hole 131 of the support frame 130 from the front side, and lightly When pushed in, the engagement hook 132 is automatically elastically deformed to engage with the outer peripheral step portion 121b.
[0034]
As described above, the movement 120 is engaged and held from both the back side and the front side by the support step 131 a and the engagement hook 132 of the support frame 130, and is horizontally held by the inner side 132 b of the support frame 130. Since it is elastically supported in the direction, it is integrated with the support frame 130. Furthermore, the movement 120 is regulated in the rotational direction by fitting a positioning projection 138 formed on the support frame 130 with a hole or a recess (not shown) of the movement 120.
[0035]
The outer peripheral portion of the receiving hole 131 of the support frame 130 is an annular frame body 133 as a whole, and the front surface 133a of the frame body 133 is formed substantially flat, and the engagement described later is formed on the front surface 133a. Hooks 134 and 135 are formed. On the other hand, as shown in FIG. 2, an inner push-up spring portion 133 c and an outer push-up spring portion 133 d are formed at the bottom of the frame body portion 133 so as to protrude. These push-up structure portions can be elastically deformed in the vertical direction in the figure by forming a through-hole penetrating inward and outward of the frame body portion 133 in the upper part of the inner push-up spring portion 133c and the outer push-up spring portion 133c. Are integrally formed. The inner push-up spring part 133c and the outer push-up spring part 133d are formed at a plurality of locations in the circumferential direction at the bottom of the frame part 133.
[0036]
The front surface 133a of the frame body part 133 is formed to be flat as a whole, and is formed to be substantially flush with the upper surface of the movement 120 accommodated in the accommodation hole 131. On the front surface 133a, engagement hooks 134 and 135 are provided at a plurality of locations in the circumferential direction so as to protrude to the front surface side. Each of these engagement hooks 134 and 135 has an engagement surface facing the back side. The engagement hook 134 is configured to engage and hold the outer edge portion of the solar cell 140 from the front side, and the engagement hook 135 is configured to engage and hold the outer edge portion of the translucent plate 150 from the front side. ing.
[0037]
FIG. 3 shows a plan view of the support frame 130 and a cross-sectional view of each part. On the front surface 133a of the frame body part 133, the engagement hook 134 and the engagement hook 135 are provided at different positions in the circumferential direction.
[0038]
A plurality of positioning protrusions 137 having a semicircular cross section are provided on the front surface 133a. The positioning protrusion 137 is for engaging the outer edge portions of both the solar cell 140 and the light transmitting plate 150 and positioning the postures of both the solar cell 140 and the light transmitting plate 150.
[0039]
In addition, the frame body part 133 of the support frame body 130 is provided with an annular groove 133b that opens to the back surface side. The annular groove 133b is for accommodating and holding the ring-shaped contact spring 124.
[0040]
The solar cell 140 is formed by laminating an amorphous semiconductor layer on the surface of a thin stainless steel plate to form a PIN structure, and forming a transparent electrode made of a transparent conductor such as ITO (indium tin oxide) on the surface. is there. As shown in FIG. 4A, the solar cell 140 is formed in a state in which a plurality of (four in the illustrated example) divided portions 141 each having the above-described stacked structure are divided in a plane. These divided portions 141 are conductively connected in series with each other via the connection pattern 142, and both ends of the series circuit are conductively connected to the terminal patterns 143 and 144. These terminal patterns 143 and 144 penetrate through the stainless steel plate and are conductively connected to connection terminal portions (not shown) provided on the back surface thereof.
[0041]
A plurality of (three in the illustrated example) overhanging edge portions 145 on which the connection patterns 142 are formed are provided on the outer edge of the solar cell 140, and the terminal patterns 143 and 144 are formed on the outer edge portion on the 12 o'clock side. An overhang edge 146 is provided. At both ends in the circumferential direction of the overhanging edge portion 145, cutout portions 145a each having an outer edge formed in a concave shape are provided.
[0042]
The solar cell 140 is not limited to the one formed using a stainless steel plate as a substrate as described above, but a film substrate made of a semiconductor substrate, a glass substrate or a ceramic substrate, a synthetic resin, or the like. The thing of various structures, such as what was used, can be used.
[0043]
On the other hand, the translucent plate 150 can be composed of transparent materials, translucent materials, and the like of various materials such as acrylic resin, polycarbonate resin, various glasses, and ceramics. Moreover, you may form the adhesion layer which comprises a predetermined pattern, a character, etc. on the front surface or the back surface by methods, such as application | coating, printing, adhesion | attachment as needed. The translucent plate 150 in the illustrated example has a thin plate 152 made of a shell material such as a white butterfly shell on the front surface of a translucent translucent substrate 151 formed of a transparent resin or a transparent resin mixed with white fine particles. Attached and appropriately printed on it, it exhibits a semi-transparent appearance as a whole.
[0044]
The planar shape of the light transmitting plate 150 is shown in FIG. On the outer edge of the light transmitting plate 150, a pair of overhanging edge portions 151 are provided at positions facing each other (in the illustrated example, two outer edge portions in the 1:30 and 7:30 directions) and opposed to each other. A pair of overhanging edge portions 152 are provided at positions (in the illustrated example, two outer edge portions at 4 o'clock and 10 o'clock directions). A cutout portion 152 a having a concave outer edge shape is formed at the center portion of the overhang edge portion 152.
[0045]
FIG. 5 shows a plan perspective view of the support frame 130 integrated with the movement 120, the solar cell 140 and the light transmitting plate 150. The movement 120 is pushed into the accommodation hole 131 of the support frame 130 from the front side (the front side of the drawing in the drawing) and is supported by the support step 131 a provided at the inner edge thereof. Thus, the engagement hook 132 is engaged with and held by the outer peripheral step portion 121b. Here, the front surface of the movement 120 and the front surface 133a of the frame body portion 133 are substantially flush with each other, and the engagement hooks 132 are formed so as not to protrude from the front surfaces of the both surfaces. A substantially flat support surface is constituted by the front surface and the front surface 133 a of the frame body portion 133.
[0046]
Next, the solar cell 140 is placed on the front surfaces of the movement 120 and the frame body part 133, and a part of the notch part 145a on both sides of the overhanging edge part 145 formed on the outer edge and both sides of the overhanging edge part 146. The edge is pressed to elastically deform the engagement hook 134, and the outer edge of the solar cell 140 is pushed under the engagement surface of the engagement hook 134. At this time, the solar cell 140 is framed in a state in which the notch 145a provided at a position not corresponding to the engagement hook 134 on the outer edge of the solar cell 140 is positioned so as to be aligned with the positioning protrusion 137. Attach to part 133.
[0047]
When the solar cell 140 is attached, coiled conductive springs 127a and 127b are inserted into guide holes 126a and 126b containing contact terminals (not shown) provided in the movement 120, and the solar cells 140 are inserted from above. A battery 140 is attached. By doing in this way, between the solar cell 140 and the movement 120, the conduction springs 126a and 126b electrically connect the contact terminal of the movement 120 and the connection terminal portion formed on the back surface of the solar cell 140. Let Here, both the contact terminal of the movement 120 and the connection terminal portion of the solar cell 140 are arranged in a range from 12:30 to 1:30 of the timepiece, and provided on the frame body portion 133 with respect to this. One of the engagement hooks 134 is provided in the 1 o'clock direction of the timepiece. Therefore, since the engagement hook 134 of the solar cell 140 is provided in the vicinity of the conductive connection portion between the movement 120 and the solar cell 140, the outer edge portion of the solar cell 140 is engaged and held by the engagement hook 134. By doing so, the reliability of the conductive connection between the movement 120 and the solar cell 140 can be improved. Further, since the solar cell 140 can be pressed onto the front surface 133a of the frame body part 133 against the spring stress of the conduction springs 126a and 126b by the engagement hook 134, the solar cell 140 and the translucent plate 150 can be moved. Since it is not lifted up by the conductive springs 126a and 126b, workability at the time of attaching the pointer can be improved.
[0048]
Next, the translucent plate 150 is pressed onto the solar cell 140, and the protruding edge portion 151 of the outer edge of the translucent plate 150 is engaged with the engagement hook 135 on the frame body portion 133. At this time, the translucent plate 150 is mounted in a state where the notch 152a provided on the overhanging edge portion 152 of the translucent plate 150 is positioned so as to be fitted to the positioning projection 137.
[0049]
The internal structure assembled in this way is introduced from the back side into an exterior case in which the glass edge 112 is joined and integrated with the body 111, and then the back cover 114 is fitted into the body 111, thereby the back cover 114. As a result, the support frame 130 is pushed up to the front side, and the outer edge of the translucent plate 150 comes into contact with the inner surface of the glass edge 112. At this time, the internal structure is accommodated and fixed in the outer case 110 without play due to elastic deformation of the push-up structure provided at the bottom of the support frame 130. At this time, the outer peripheral surface of the support frame 130 is positioned in the horizontal direction (planar direction) by contacting the inner surface of the exterior case 110.
[0050]
In the present embodiment, as described above, the internal structure can be assembled by sequentially attaching the movement 120, the solar cell 140, and the light transmitting plate 150 to the support frame 130 from the same direction. Work becomes easy and automation of assembly is also easy. In addition, since the movement 120, the support frame 130, the solar cell 140, and the light transmitting plate 150 are all integrated, the handling property during the manufacturing process can be improved.
[0051]
Further, in the above internal structure, the front surface of the movement 120 mounted on the support frame 130 and the back surface of the solar cell 140 are disposed to face each other without interposing the support frame 130, or are in contact with each other. Therefore, since the receiving member is not interposed between the movement and the solar cell as in the conventional structure, the thickness of the internal structure integrated by the support frame 130 can be reduced, which is significantly larger than the conventional structure. It became possible to manufacture a wristwatch with a thin solar cell. Here, the front surface of the movement 120 and the back surface of the solar cell 140 may be in direct contact with each other, or a slight gap may be formed between them. In the latter case, the front surface 133 a of the frame body portion 133 may be formed so as to be positioned slightly in front of the front surface of the movement 120.
[0052]
Next, a modification of the wristwatch with a solar cell according to the present invention will be described with reference to FIG. In this modification, the same reference numerals are given to the constituent members having the same structure as the above embodiment, and the description thereof is omitted.
[0053]
In this modified example, as shown in FIG. 6, in the assembled state, the front ends of engagement hooks 134 and 135 (135 not shown) provided on the support frame 130 are on the inner surface of the glass edge 115 on the back side. It is comprised so that it may contact | abut from.
[0054]
In addition, a translucent plate 160 having a structure different from that of the above embodiment is disposed on the front side of the solar cell 140. The translucent plate 160 includes a translucent substrate 161 made of a brittle material such as ceramics or glass, a member 162 made of a shell, a metal ring, or the like bonded and fixed on the surface of the translucent substrate 161, and a translucent plate. The outer peripheral ring 163 made of a metal material is bonded and fixed to the outer edge of the substrate 161.
[0055]
The outer peripheral ring 163 is in contact with the front surface of the solar cell 140 via a buffer material 164 made of a resin sheet such as PET (polyethylene terephthalate). An engagement hook 135 (not shown) provided on the support frame 130 engages and holds the outer ring 163. Due to the presence of the outer peripheral ring 163 and the buffer material 164, a gap G <b> 1 is formed between the solar cell 140 and the translucent substrate 161. Further, the outer ring 163 is configured to face the inner surface of the glass edge 115 from the back side through a slight gap G2.
[0056]
In this modification, the gap G1 is formed between the solar cell 140 and the translucent substrate 161 of the translucent plate 160 by providing a support structure including the outer peripheral ring 163 and the buffer material 164. When the movement 120 and the solar cell 140 are deformed and moved upward when they are received, the stress transmitted from these to the translucent substrate 161 can be prevented or reduced, and the translucent substrate 161 is prevented from being damaged. In addition, the impact resistance of the internal structure can be improved.
[0057]
In this modification, the front ends of the engagement hooks 134 and 135 are in contact with the inner surface of the glass edge 115 from the back side, so that the support frame 130 is not only in the horizontal direction but also in the vertical direction in the exterior case 110. The positioning is also fixed. Accordingly, since the internal structure in the exterior case 110 is all positioned through the support frame 130, the impact is absorbed by the support frame 130 when the watch body receives an impact. The impact force transmitted to the structural member, the movement 120, the solar cell 140, and the translucent plate 160 can be reduced.
[0058]
In particular, since the engagement hooks 134 and 135 of the support frame 130 are in contact with the inner surface of the exterior case 110, the impact received by the support frame 130 itself due to elastic deformation of the engagement hooks 134 and 135 can be reduced. There is an advantage that you can.
[0059]
In addition, when the impact is strong, the inner surface of the glass edge 115 of the outer case abuts on the outer peripheral ring 163 opposed to the gap G2, and a part of the impact force is shared. As a result, the impact resistance can be enhanced.
[0060]
Further, protrusions other than the engagement hooks 134 and 135 are formed on the front surface 133a, and the height of the protrusions is the same as or higher than the engagement hooks 134 and 135, and the protrusions absorb the impact. You may do it.
[0061]
Next, still another modification of the above embodiment will be described with reference to FIG. In this modification, the same reference numerals are given to the same structural members as those in the above embodiment, and the description thereof is omitted.
[0062]
In this modified example, as in the modified example shown in FIG. 6, a translucent substrate 161 is disposed on the solar cell 140 via a buffer material 164 similar to the above and an outer peripheral ring 163. As shown in the figure, the outer peripheral ring 163 engages with the engagement hook 135, and thereby the translucent plate 160 is engaged and held by the support frame 130.
[0063]
Also in this modified example, the front ends of the engagement hooks 134 and 135 (134 is not shown) abut against the inner surface of the glass edge 116, whereby the support frame 130 is also positioned in the vertical direction in the exterior case 110. ing.
[0064]
When a strong impact force is applied to this modified example, stress is transmitted to the upper ends of the engagement hooks 134 and 135 as described above, and the impact force is relieved by elastic deformation of the engagement hooks 134 and 135. In this modification, the outer peripheral ring 163 is supported by the engagement end of the engagement hook 135, so that stress concentration on the translucent plate 160 can be prevented.
[0065]
Also in this modified example, similarly to the modified example shown in FIG. 6, protrusions other than the engaging hooks 134 and 135 may be provided to absorb the impact.
[0066]
It should be noted that the embodiment of the present invention is not limited to the illustrated examples described above, and various modifications can be made without departing from the scope of the present invention.
[0067]
【The invention's effect】
As described above, according to the present invention, the timepiece structure with solar cell can be thinned, the assembling work can be facilitated, and the impact resistance can be improved. It is.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing the structure of an embodiment of a timepiece with a solar cell according to the present invention.
FIG. 2 is a longitudinal sectional view showing the structure of the embodiment for a portion different from FIG. 1;
FIG. 3 is a plan view showing the structure of the support frame body in the embodiment, and the AA ′ line, BB ′ line, CC ′ line, DD ′ line, and EE ′ of the support frame body; It is each sectional drawing which shows the cut surface along a line and FF 'line.
FIG. 4 is a plan view (a) of a solar cell and a plan view (b) of a light transmitting plate in the same embodiment.
FIG. 5 is a perspective plan view showing an internal structure in an assembled state according to the embodiment.
FIG. 6 is a longitudinal sectional view showing a modification of the embodiment.
FIG. 7 is a longitudinal sectional view showing another modified example of the embodiment.
[Explanation of symbols]
100 watches
110 Exterior case
111 torso
112, 115, 116 Glass edge
113 Display window
114 Back cover
120 movement
121 Ground plane
121a, 121b outer peripheral step
130 Support frame
131 Accommodating hole (accommodating part)
131a support step
132 Engagement hook (first hook)
133 Frame body
133a top surface
134 Engagement hook (second hook)
135 Engagement hook (third hook)
136, 137 Positioning protrusion
140 Solar cell
150,160 Translucent plate
161 Translucent substrate
162 Shell material
163 Outer ring
164 cushioning material

Claims (8)

A timepiece with a solar cell, comprising: a solar cell; a movement; and a support frame body that accommodates and positions the solar cell and the movement and is in contact with an inner surface of an outer case,
The movement is provided with an outer peripheral step on the front side,
In the support frame,
An accommodating portion having an opening for accommodating the movement from the front side;
A support step for supporting the movement from the back side;
An engagement hook that engages with the outer peripheral step from the front side;
A second hook for holding an outer edge portion on the light receiving surface side of the solar cell;
A watch with a solar cell, characterized in that it is integrally provided. The timepiece with a solar cell according to claim 1, wherein the movement and the solar cell are arranged so as to directly overlap each other. In Claim 1 or Claim 2, the translucent board is arrange | positioned at the light-receiving surface side of the said solar cell, The 3rd holding structure for hold | maintaining the said translucent board is provided in the said support frame. A solar cell watch characterized by the above. In Claim 3, The said 3rd holding structure is comprised so that the said translucent plate can be received from the light-receiving surface side of the said solar cell, and the engagement hook for hold | maintaining the outer edge part of the said translucent plate is provided. A solar-powered watch characterized by In Claim 3 or Claim 4, the said translucent board has a translucent member and the attachment frame attached to the outer edge part of this translucent member, and this attachment frame is according to said 3rd holding structure. A watch with a solar battery, which is held. The timepiece with a solar cell according to claim 5, wherein the mounting frame is in contact with the solar cell, and a gap is formed between a light receiving surface of the solar cell and the translucent member. The timepiece with solar cell according to claim 6, wherein a cushioning material is interposed between the mounting frame and the solar cell. The timepiece with a solar cell according to claim 1, wherein the support frame is positioned by an exterior case.

Images