JP2006275941A - Watch with indication hands - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable securement of operating reliability of an analog block, by controlling the gear wheel of the analog block surely and properly. <P>SOLUTION: A watch formation is made by facing a pressing section 21, elastically pressing the gear wheel 15b of the analog block 2 to the side of the analog block 2, to project the same to a pressure plate 4 that is fixed on a housing 1 by a frame member 7, and a ground plate 9 for pressing a liquid crystal displaying panel 5 and presses against the analog block 2. Accordingly, the upper surface of the gear wheel 15b and the upper surface of the housing 1 will not be arranged on the same flat surface, and the pressing section 21 projected to the side of the analog block 2 can elastically press the upper surface of the wheel 15b, even if difference between the upper surface of the wheel 15b and the upper surface of the housing 1 is produced. This surely enables prevention of the lifting-up of the wheel 15b a play in the vertical direction of the wheel 15b and then enables securement of the operating reliability of the analog block 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a pointer type timepiece.

Conventionally, in a pointer type timepiece, as described in Patent Document 1, an analog block is provided in a housing disposed in a timepiece case, and a pointer shaft of the analog block protrudes upward. A pointer is attached to the tip of the shaft, and the pointer indicates the time by moving the hand over the housing.
JP-A-8-278374

  In this case, the pointer is composed of an hour hand, a minute hand, and a second hand, and the needle shaft is rotatably inserted into the hour wheel shaft that is the hour hand shaft, and the second hand shaft is rotatably inserted into the minute hand shaft. In the configuration, the hour hand is attached to the cylinder shaft of the hour wheel, the minute hand is attached to the minute hand shaft, and the second hand is attached to the second hand shaft. In addition, a press plate for preventing the hour wheel from slipping upward is attached to the upper surface of the housing. The presser plate is made of a flat metal thin plate, and a through hole into which the cylindrical shaft of the hour wheel is inserted is formed at a predetermined position, and the gear provided at the lower part of the hour wheel is pressed at the peripheral part of the through hole. It is configured.

  However, in such a conventional pointer-type timepiece, since the presser plate is made of a flat metal thin plate, the presser plate and the housing must be arranged unless the upper surface of the wheel of the hour wheel and the upper surface of the housing are arranged on the same plane. Or a gap between the presser plate and the gear, and it will not be possible to reliably control the lifting of the wheel of the hour wheel or the rattling of the gear in the vertical direction, resulting in problems with the operation of the analog block. Is concerned.

  The problem to be solved by the present invention is to provide a pointer-type timepiece that can reliably and satisfactorily press the gears of the analog block to ensure the operation reliability of the analog block.

In order to solve the above problems, the present invention includes the following components.
In addition, the reference numerals of the drawings attached to the respective elements described in the section of each embodiment described later are attached to the respective constituent elements together with parentheses.

As shown in FIGS. 1 to 6, the invention described in claim 1 includes a housing (1), an analog block (2) disposed in the housing and exposing a gear (15b) on the upper surface of the housing, and A presser member (presser plate 4) disposed on the upper surface of the housing and pressing the analog block; and fixing members (frame member 7 and ground plate 9) for fixing the presser member on the housing;
It is a pointer type timepiece characterized in that a pressing portion (21) for elastically pressing the gear is formed on the pressing member so as to protrude to the analog block side.

  1 to 6, the fixing member is arranged around the upper surface of the housing (1) to hold the display panel (liquid crystal display panel 5). (7) and a mounting member (base plate 9) for attaching the frame-shaped member to the housing, and a state in which a peripheral portion of the pressing member (pressing plate 4) is sandwiched between the frame-shaped member and the housing 2. The pointer type timepiece according to claim 1, wherein the attachment member fixes the pressing member on the housing by attaching the frame-like member to the housing.

  According to a third aspect of the present invention, as shown in FIG. 5, a through hole (19) corresponds to a central portion of the gear (15b) in the presser portion (21) of the presser member (presser plate 4). 3. The pointer type timepiece according to claim 1, wherein a bent portion is bent upward at a peripheral edge portion of the through hole. 4.

  In the invention according to claim 4, as shown in FIG. 6, the pressing member (holding plate 4) contacts the one electrode of the battery (3) disposed in the housing (1). The piece (30) and the second contact piece (31) contacting the connection electrode of the circuit board (8) arranged in the housing are integrally formed. It is a pointer type watch described in the above.

  According to the first aspect of the present invention, the pressing member that is fixed to the upper surface of the housing by the fixing member and presses the analog block is formed by projecting the pressing portion that elastically presses the gear of the analog block to the analog block side. Therefore, even if the upper surface of the gear and the upper surface of the housing are not arranged on the same plane, and there is a step between the upper surface of the gear and the upper surface of the housing, the upper surface of the gear is elastically pressed by the pressing portion protruding to the analog block side. Can be attached. For this reason, it is possible to reliably prevent the gears from floating and the gears from rattling up and down, thereby ensuring the operational reliability of the analog block.

  According to the second aspect of the present invention, the fixing member includes a frame-shaped member that is disposed around the upper surface of the housing and presses the display panel, and a mounting member that attaches the frame-shaped member to the housing. The mounting member attaches the frame-shaped member to the housing and fixes the pressing member on the housing in a state where the periphery of the pressing member is sandwiched between the holding member and the housing, thereby securely fixing the pressing member to the upper surface of the housing. be able to. At this time, since the display panel is fixed to the upper side of the housing by the frame-shaped member, the pressing member can be fixed simultaneously with fixing the display panel by the frame-shaped member, thereby simplifying the mounting operation. And productivity can be improved.

  According to invention of Claim 3, a through-hole is provided in the holding | suppressing part of the pressing member corresponding to the center part of a gearwheel, and the bending part is bend | folded upwards at the peripheral part of this through-hole. Therefore, even if the presser part that presses the gear elastically is formed integrally with the presser member, the presser part can be reinforced by the bent part formed in the peripheral part of the through hole of the presser part. Since the bending rigidity of the presser portion can be reinforced, the operation reliability of the analog block can be ensured also by this.

  According to the invention described in claim 4, the first contact piece that contacts one electrode of the battery disposed in the housing and the second contact piece that contacts the connection electrode of the circuit board disposed in the housing. Since the first contact piece of the presser member is brought into contact with one electrode of the battery and the second contact piece is brought into contact with the connection electrode of the circuit board by being formed integrally with the presser member, the battery is interposed via the presser member. One of the electrodes and the connection electrode of the circuit board can be electrically connected. This eliminates the need for a dedicated connection member for electrically connecting one electrode of the battery and the circuit board, thereby reducing the number of parts and simplifying the assembly work. This can reduce the manufacturing cost.

(Embodiment 1)
Hereinafter, Embodiment 1 of a pointer type timepiece to which the present invention is applied will be described with reference to FIGS.
1 is a cross-sectional view showing a timepiece module of a pointer type timepiece according to the present invention, FIG. 2 is an enlarged cross-sectional view showing an essential part of FIG. 1, and FIG. 4 is a cross-sectional view further enlarging the portion B of FIG.
As shown in FIGS. 1 and 2, the timepiece module of the pointer type timepiece includes a housing 1 made of synthetic resin. The housing 1 is housed in a watch case (not shown), in which an analog block 2 and a battery 3 are arranged. On the upper surface of the housing 1, the analog block 2 is placed. A presser plate 4 is disposed.

  As shown in FIGS. 1 and 2, the liquid crystal display panel 5 is held by the frame-like member 7 above the presser plate 4 while being supported by the interconnector 6. In the liquid crystal display panel 5, liquid crystal (not shown) is sealed between a pair of transparent electrode substrates 5a and 5b, an upper polarizing plate 5c is disposed on the upper surface of the upper electrode substrate, and the lower surface of the lower electrode substrate is disposed. The lower polarizing plate 5d is arranged, and in this state, by selectively applying a voltage to the pair of upper and lower electrode substrates 5a and 5b, information such as date and day of the week is displayed electro-optically. . The frame-like member 7 is made of synthetic resin, and is disposed at the peripheral edge portion on the upper surface of the housing 1, and a flange portion 7 a is provided on the upper portion thereof so as to protrude inward. The flange portion 7 a causes the peripheral edge portion of the liquid crystal display panel 5 to move upward. It is comprised so that it can be pressed from.

  Further, as shown in FIGS. 1 and 2, a circuit board 8 is disposed on the lower surface of the housing 1, and a ground plane 9 is disposed on the lower surface of the circuit board 8. In this case, the interconnector 6 is disposed on the circuit board 8. This interconnector 6 is of a zebra type formed by alternately arranging conductive rubber and insulating rubber, and passes above the presser plate 4 through the insertion hole 1a of the housing 1 and the insertion hole 4a of the presser plate 4. The end of the liquid crystal display panel 5 is disposed at the projected upper end, and the circuit board 8 and the liquid crystal display panel 5 are thereby electrically connected.

  Further, as shown in FIG. 2, the base plate 9 is made of a thin metal plate, and the engagement pieces 10 are bent substantially vertically upward at predetermined positions (both sides in FIG. 1) in the peripheral portion. When the engaging projections 11 formed on the outer surface of the frame-like member 7 are inserted into and engaged with the engagement holes 10 a provided in the upper portion of the frame-like member 7, the presser plate 4 is placed on the housing 1. And the circuit board 7 is configured to be pressed and fixed to the lower surface of the housing 1.

  By the way, as shown in FIG. 1 and FIG. 2, the analog block 2 moves the hour hand 12, the minute hand 13, and the second hand 14 to indicate the time, and the stepper motor is electrically connected based on the vibration of the crystal resonator. , And the rotation is transmitted to the hour wheel 15 by a gear train mechanism (not shown), and the hour hand shaft 16, the minute hand shaft 17, and the second hand shaft 18 are rotated based on the rotation of the hour wheel 15. By doing so, the hour hand 12, the minute hand 13, and the second hand 14 are moved to indicate the time.

  In this case, as shown in FIG. 2, in the hour wheel 15, a gear 15 b is integrally formed on the same axis at the lower part of the cylinder shaft 15 a, the gear 15 b is arranged on the upper part of the analog block 2, and the cylinder shaft 15 a is analog. It is arranged in a state protruding above the block 2. That is, the hour wheel 15 is arranged so that the upper surface of the gear 15 b is flush with the upper surface of the housing 1, and the cylinder shaft 15 a is provided in the through hole 19 provided in the holding plate 4 and the liquid crystal display panel 5. The liquid crystal display panel 5 is configured to protrude upward through the through hole 20. A cylindrical hour hand shaft 16 is provided on the upper portion of the tube shaft 15 a, and the hour hand 12 is attached to the upper end portion of the hour hand shaft 16. Thereby, the hour hand 12 is configured to rotate once over the liquid crystal display panel 5 in 12 hours.

  Further, as shown in FIG. 2, a cylindrical minute hand shaft 17 is rotatably disposed in the cylindrical shaft 15a so as to protrude upward. At the upper end portion of the minute hand shaft 17 protruding upward, The minute hand 13 is attached. As a result, the minute hand 13 is configured to rotate once above the liquid crystal display panel 5 and the hour hand 12 in 60 minutes. Further, a second hand shaft 18 is rotatably disposed in the minute hand shaft 17 so as to protrude upward, and a second hand 14 is attached to an upper end portion of the second hand shaft 18 protruding upward. As a result, the second hand 14 is configured to rotate once above the liquid crystal display panel 5 and the minute hand 13 in one minute.

  On the other hand, the presser plate 4 disposed on the upper surface of the housing 1 is a thin metal plate as shown in FIGS. 2 and 3, and a portion of the presser plate 4 corresponding to the gear 15b of the hour wheel 15 includes a gear 15b. The presser portion 21 that elastically presses is integrally formed. The presser portion 21 is formed so as to protrude to the analog block 2 side (lower side in FIG. 3) by drawing in a slightly wider range than the portion corresponding to the gear 15 b of the hour wheel 15.

  In this case, it is desirable that the presser portion 21 is formed so that the downward protruding length d is smaller than the plate thickness t of the presser plate 4. Further, as shown in FIG. 4, a notch 22 is formed at a predetermined location (location located on both the left and right sides in FIG. 1) at the peripheral edge of the presser plate 4, and a corresponding frame-shaped member On the lower surface of 7, a protrusion 23 is formed so as to protrude into the notch 22 of the presser plate 4. It is desirable that the protrusion height h of the convex portion 23 of the frame-like member 7 is the same as or shorter than the plate thickness t of the presser plate 4.

Next, the case where the presser plate 4 is attached on the housing 1 will be described.
As shown in FIGS. 1 and 2, the analog block 2 and the battery 3 are disposed in the housing 1 in advance, and the circuit board 8 is disposed on the lower surface of the housing 1. In this state, the presser plate 4 is disposed on the upper surface of the housing 1, and the liquid crystal display panel 5 is disposed above the presser plate 4 via the interconnector 6. At this time, the cylinder shaft 15 a of the hour wheel 15 of the analog block 2 protrudes above the liquid crystal display panel 5 through the through hole 19 of the holding plate 4 and the through hole 20 of the liquid crystal display panel 5. Thereafter, the base plate 9 is disposed under the circuit board 8 disposed on the lower surface of the housing 1, and the frame-like member 7 that presses the liquid crystal display panel 5 is disposed on the housing 1.

  At this time, the convex portion 23 provided on the lower surface of the frame-like member 7 is inserted into the notch portion 22 provided at the peripheral edge portion of the presser plate 4. In this state, when the engaging projection 11 of the frame-shaped member 7 is engaged with the engagement hole 10 a of the engagement piece 10 formed on the ground plate 9, the frame-shaped member 7 is attached onto the housing 1 by the ground plate 9. . For this reason, the liquid crystal display panel 5 is pressed and fixed onto the interconnector 6 by the frame-shaped member 7, and the frame-shaped member 7 presses the peripheral edge portion of the presser plate 4 onto the housing 1 to hold the presser plate 4. Fix on the housing 1. As a result, the presser portion 21 of the presser plate 4 elastically presses the upper surface of the gear 15 b of the hour wheel 15.

  As described above, according to this pointer type timepiece, the hour hand 12, the minute hand 13, and the second hand 14 move the upper part of the liquid crystal display panel 5 to indicate the time, and the liquid crystal display panel 5 displays information such as the date. In addition, the presser plate 4 that is disposed on the housing 1 and presses the analog block 2 is formed on the presser plate 4 that elastically presses the gear 15b of the hour wheel 15 of the analog block 2 and protrudes toward the analog block 2 side. Therefore, even if the upper surface of the gear 15b and the upper surface of the housing 1 are not arranged on the same plane, and there is a step between the upper surface of the gear 15b and the upper surface of the housing 1, the holding portion 21 protruding toward the analog block 2 side The upper surface of the gear 15b of the vehicle 15 can be elastically pressed. For this reason, lifting of the gear 15b and rattling of the gear 15b can be surely prevented, and thereby the operational reliability of the analog block 2 can be ensured.

  In this case, the presser portion 21 has a downward projecting length d smaller than the plate thickness t of the presser plate 4, so that no extra space is required and the watch module is not thickened. Overall compactness can be achieved. The presser plate 4 is arranged around the upper surface of the housing 1, and when the frame-like member 7 that holds the liquid crystal display panel 5 is attached to the housing 1 by the base plate 9, the frame-like member 7 is attached to the peripheral portion of the presser plate 4. Is pressed onto the housing 1, so that the presser plate 4 can be securely fixed onto the housing 1. At this time, since the convex portion 23 of the frame-like member 7 is inserted into the notch 22 provided at the peripheral edge of the presser plate 4, the position of the frame-like member 7 and the presser plate 4 can be restricted to a predetermined position. .

  In particular, the protrusion 23 of the frame-like member 7 is formed so that its protruding height h is the same as or shorter than the thickness t of the presser plate 4, so that even if the protrusion 23 is provided on the frame-like member 7. The periphery of the presser plate 4 can be securely pressed onto the housing 1 by the frame-like member 7. Further, the protrusion 23 of the frame-like member 7 is formed such that the protrusion height h is smaller than the sum of the plate thickness t of the presser plate 4 and the protrusion length d downward of the presser part 21 (h ≦ t + d). Therefore, when the presser plate 4 is fixed on the housing 1, the presser portion 21 can securely press the upper surface of the gear 15b, thereby further ensuring the operation reliability of the gear 15b. can do.

  Further, when the presser plate 4 is fixed on the housing 1 in this way, the frame-shaped member 7 presses the liquid crystal display panel 5 onto the interconnector 6, so that the liquid crystal display panel 5 is fixed by the frame-shaped member 7. At the same time, the presser plate 4 can be fixed on the housing 1. For this reason, it is possible to simplify the work of attaching the presser plate 4, thereby improving the assembly work of the entire timepiece module, thereby increasing the productivity.

(Embodiment 2)
Next, a second embodiment of the pointer type timepiece to which the invention is applied will be described with reference to FIG. In addition, the same code | symbol is attached | subjected and demonstrated to the same part as Embodiment 1 shown by FIGS. 1-4.
This pointer-type timepiece has a configuration in which a bent portion 25 is formed at the peripheral edge portion of the through hole 19 provided in the presser portion 21 of the presser plate 4, and the other configuration is the same as that of the first embodiment. That is, the bent portion 25 of the presser plate 4 is configured such that the peripheral edge portion of the through hole 19 into which the cylindrical shaft 15a of the hour wheel 15 of the analog block 2 is inserted is bent upward by drawing.

  According to such a pointer type timepiece, there are the same effects as in the first embodiment, and in particular, the bent portion 25 is directed upward by drawing at the peripheral portion of the through hole 19 in the presser portion 21 of the presser plate 4. Therefore, even if the presser portion 21 that elastically presses the gear 15b of the hour wheel 15 is formed on the presser plate 4, the presser portion 21 can be reinforced by the bent portion 25, and thus the presser portion 21 can be reinforced. Therefore, the operation reliability of the analog book 2 can be further improved. In this case, the bent portion 25 is bent upward by drawing at the peripheral portion of the through hole 19 of the presser portion 21, so that it can be easily manufactured and does not require extra space. The watch module can also be made compact.

(Embodiment 3)
Next, referring to FIG. 6, a third embodiment of the pointer type timepiece to which the invention is applied will be described. Also in this case, the same portions as those in the first embodiment shown in FIGS.
This pointer-type timepiece has a structure in which a first contact piece 30 that contacts the negative electrode of the battery 3 and a second contact piece 31 that contacts a wiring electrode of the circuit board 8 are integrally formed on the holding plate 4. The configuration is almost the same as in the first embodiment.

  In other words, the first contact piece 30 is formed by cutting out the holding plate 4 at a location corresponding to the battery 3 disposed in the housing 1 in a tongue shape and bending it obliquely downward, so that the tip of the first contact piece 30 is the negative electrode of the battery 3 (FIG. 6). Then, it is configured so as to be elastically in contact with the electrode located on the upper end surface. In this case, the anode of the battery 3 is electrically connected to the circuit board 8 by a connecting member (not shown). Further, the second contact piece 31 has a distal end portion formed in the housing 1 by punching the presser plate 4 at a location corresponding to the opening 32 penetrating vertically in the housing 1 and bending it downward in a tongue shape. The connection electrode (not shown) provided on the upper surface of the circuit board 8 is elastically contacted through the opening 32.

  According to such a pointer type timepiece, there are the same effects as in the first embodiment, and in particular, the first contact piece 30 that elastically contacts the negative electrode of the battery 3 disposed in the housing 1 and the housing 1 Since the second contact piece 31 elastically contacting the connection electrode of the circuit board 8 arranged on the lower surface through the opening 32 of the housing 1 is formed integrally with the presser plate 4, the first contact piece of the presser plate 4 When 30 is brought into contact with the negative electrode of the battery 3 and the second contact piece 31 is brought into contact with the connection electrode of the circuit board 8, the negative electrode of the battery 3 and the wiring electrode of the circuit board 8 are electrically connected via the holding plate 4. can do. This eliminates the need for a dedicated connecting member for electrically connecting the negative electrode of the battery 3 and the circuit board 8, thereby reducing the number of parts and simplifying the assembly work. As a result, the manufacturing cost can be reduced.

In the first to third embodiments, the case where the liquid crystal display panel 5 is used as the display panel has been described. However, the present invention is not limited to this, and a flat display panel such as an EL display panel (electroluminescence display panel) is used. May be used.
In the first to third embodiments, the present invention is applied to a combination-type pointer-type timepiece including the analog block 2 that indicates the time with a pointer and the liquid crystal display panel 5 that displays information such as date electro-optically. As described above, the watch is not necessarily a combination watch, and may be a hand watch provided only with an analog block that indicates the time with a hand.

It is sectional drawing which showed the timepiece module of the pointer type timepiece to which this invention is applied. (Embodiment 1) FIG. 2 is an enlarged cross-sectional view showing a main part of the timepiece module of FIG. 1. It is sectional drawing which expanded and showed the A section of FIG. It is sectional drawing which expanded and showed the B section of FIG. It is the expanded sectional view of the principal part which showed the timepiece module of the pointer type timepiece to which this invention is applied. (Embodiment 2) It is sectional drawing which showed the timepiece module of the pointer type timepiece to which this invention is applied. (Embodiment 3)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing 2 Analog block 3 Battery 4 Holding plate 5 Liquid crystal display panel 6 Interconnector 7 Frame-shaped member 8 Circuit board 9 Base plate 10 Engagement part 11 Locking projection part 12 Hour hand 13 Minute hand 14 Second hand 15 Cylinder wheel 15a Cylinder shaft 15b Gear 19 Through hole 21 Presser portion 25 Bent portion 30 First contact piece 31 Second contact piece

Claims (4)

A housing, an analog block disposed in the housing and exposing a gear on the upper surface of the housing, a pressing member disposed on the upper surface of the housing and pressing the analog block, and fixing the pressing member on the housing A fixing member,
The pointer-type timepiece according to claim 1, wherein a pressing portion for elastically pressing the gear is formed on the pressing member so as to protrude toward the analog block side.   The fixing member includes a frame-shaped member that is disposed around the upper surface of the housing and presses the display panel, and an attachment member that attaches the frame-shaped member to the housing. The fixing member is disposed between the frame-shaped member and the housing. 2. The pointer according to claim 1, wherein the pressing member fixes the pressing member on the housing by mounting the frame-shaped member to the housing with the peripheral edge of the pressing member interposed therebetween. Watch.   The presser portion of the presser member is provided with a through hole corresponding to a center portion of the gear, and a bent portion is bent upward at a peripheral portion of the through hole. Item 3. The pointer type timepiece according to item 1 or 2. The pressing member is integrally formed with a first contact piece that contacts one electrode of the battery disposed in the housing and a second contact piece that contacts the connection electrode of the circuit board disposed in the housing. The pointer type timepiece according to any one of claims 1 to 3, wherein the timepiece type timepiece is formed.

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