JP2015059792A - Module and watch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a module that prevents a projection part from being damaged by a lateral impact and can improve impact resistance, and to provide a watch provided with the same.SOLUTION: A module comprises: a lower housing 3 that is provided with a hole 12; and an upper housing 2 that includes a projection part 13 positioned by being inserted into the hole 12 of this lower housing 3 and includes a concave part 14 provided at a position at least located in a lateral impact loading direction at a base part of this projection part 13. Accordingly, when the upper housing 2 and the lower housing 3 receive a lateral impact, the concave part 14 provided at a base part of the projection part 13 in the upper housing 2 elastically deforms the projection part 13 and then buffers the impact. Therefore, the module can successfully prevent the projection part 13 from being damaged by its bending due to the lateral impact and thereby can improve impact resistance.

Description

  The present invention relates to a module used in an electronic device such as a wristwatch and a timepiece including the module.

  For example, as described in Patent Document 1, a wristwatch includes a module incorporated in a wristwatch case, and various components such as a battery are mounted on a housing of the module.

Japanese Patent Laid-Open No. 08-128418

  In order to fix the housing in the watch case, such a watch module is provided with a boss portion having a screw hole raised in the watch case, a boss hole is provided in the housing, and the boss hole of the housing is provided with the boss hole of the watch case. The boss part is inserted and positioned, and in this state, the fastening screw is screwed into the screw hole of the boss part through the boss hole of the housing, thereby fixing the housing in the watch case.

  However, in such a module, since the boss part stands and is provided on the watch case, there is a problem that the boss part is bent and damaged when the watch case receives an impact from the side. In other words, because the weight of the battery and other parts built into the housing is heavy, a large load is applied to the base of the boss due to the impact from the side of the watch case, and the boss is easily bent and damaged by this large load. There is a problem of becoming.

  The problem to be solved by the present invention is to provide a module capable of preventing breakage of a protrusion due to a side impact and improving impact resistance, and a timepiece including the module.

  The present invention includes a first housing provided with a hole, and a protrusion inserted into the hole of the first housing, and the protrusion of the protrusion is located at both sides of the root of the protrusion. And a second housing in which a pair of recesses having a length longer than the diameter are formed in parallel to each other.

  According to the present invention, when each of the first and second housings receives an impact from the side, the projection is elastically provided by the impact buffering recess provided at the root of the projection of the first housing. Can be deformed automatically, and shock can be buffered. For this reason, it is possible to satisfactorily prevent the protrusions from being damaged by the impact from the side, thereby improving the impact resistance.

It is the expanded back view which showed 1st Embodiment which applied this invention to the timepiece module of a wristwatch. It is the expanded sectional view shown upside down in the AA arrow view of the timepiece module shown in FIG. 1 shows the main part of the timepiece module shown in FIG. 1, (a) is an enlarged cross-sectional view shown upside down in the direction of arrows BB in FIG. It is an enlarged back view of the principal part in FIG. The principal part in 2nd Embodiment which applied this invention to the timepiece module of a wristwatch is shown, (a) is the expanded sectional view which showed the principal part, (b) is the principal part in the DD arrow view of (a). FIG.

(First embodiment)
A first embodiment in which the present invention is applied to a wristwatch will be described below with reference to FIGS.
As shown in FIGS. 1 and 2, this wristwatch includes a timepiece module 1. The timepiece module 1 is incorporated in a watch case (not shown) and includes an upper housing (second housing) 2 and a lower housing (first housing) 3.

  The upper housing 2 and the lower housing 3 are made of synthetic resin such as polycarbonate. A circuit board 4 is arranged between the upper housing 2 and the lower housing 3 as shown in FIG. Further, the upper housing 2 and the lower housing 3 are configured to be attached to each other by a plurality of hook portions 5 a of the ground plate 5 disposed on the lower surface of the lower housing 3 and the hook portions 6 provided on the upper housing 2. Has been.

  That is, as shown in FIGS. 1 and 2, the plurality of hook portions 5a of the ground plate 5 disposed on the lower surface of the lower housing 3 are bent upward from the outer peripheral edge of the ground plate 5 made of a thin metal plate such as stainless steel. It has been. The hook portion 5 a protrudes upward along the side surface of the lower housing 3, and the protruding tip portion is configured to be locked by a plurality of locking projections 7 provided on the side surface of the upper housing 2. ing.

  Further, as shown in FIGS. 1 and 2, the hook portion 6 of the upper housing 2 is provided so as to protrude downward from the outer peripheral edge located on the 12 o'clock side of the upper housing 2. The hook portion 6 is configured to be locked to a locking projection portion 8 provided on the side surface of the lower housing 3.

  Thereby, as shown in FIG. 2, the upper housing 2 and the lower housing 3 are engaged with the plurality of hook portions 5a of the base plate 5 by the plurality of locking projections 7 of the upper housing 2, respectively. The two hook portions 6 are locked to the locking protrusions 8 of the lower housing 3, so that the circuit boards 4 are sandwiched and attached to each other.

  In this case, a display panel 10 is arranged inside the upper housing 2 as shown in FIG. The display panel 10 includes a flat display element such as a liquid crystal display element or an EL (electroluminescence) display element, and is configured to display information such as time in an electro-optical manner. The display panel 10 is electrically connected to the circuit board 4 by a connection member (not shown) such as an interconnector.

  Further, as shown in FIGS. 1 and 2, a button-type battery 11 is accommodated in the lower housing 3. The battery 11 is the largest and heaviest in the timepiece module 1 and is electrically connected to the circuit board 4. In this case, the base plate 5 is provided with a battery insertion hole 5b into which the battery 11 is inserted. The circuit board 4 is provided with various electronic components (not shown) necessary for the clock function.

  Incidentally, a plurality of holes 12 are provided near the edge of the lower housing 3 as shown in FIGS. 1 and 2. As shown in FIG. 3A, the hole 12 is a cylindrical recess that is opened on the upper surface side of the lower housing 3. In this case, the circuit board 4 is provided with a plurality of through holes 4 a corresponding to the plurality of holes 12 of the lower housing 3, as shown in FIGS. 2 and 3.

  Moreover, as shown in FIGS. 1 to 3, a plurality of protrusions 13 are integrally formed on the lower surface of the upper housing 2 in a state corresponding to the plurality of holes 12 of the lower housing 3. As shown in FIGS. 2 and 3, the protrusion 13 is formed in a cylindrical shape and is configured to be inserted into the hole 12 of the lower housing 3. Accordingly, the protrusion 13 is configured to position the upper housing 2 and the lower housing 3 by being inserted into the hole 12 of the lower housing 3 through the through hole 4 a of the circuit board 4.

  In this case, as shown in FIGS. 3 (a) and 3 (b), a shock-absorbing recess 14 is provided at a location located at the base of the plurality of protrusions 13 in the upper housing 2. That is, the recess 14 has an impact load at a location located in the direction of impact load from the side with respect to the projection 13, that is, at the base portion of the projection 13 located at 3 o'clock side and 9 o'clock side. It is linearly provided in a direction orthogonal to the direction. That is, the upper housing 2 has a protrusion 13 that is inserted into the hole 12 of the lower housing 3, and is a set having a length that is longer than the diameter of the protrusion 13 at locations located on both sides of the root of the protrusion 13. Are formed in parallel with each other.

  As shown in FIG. 3A, the recess 14 is formed with a depth slightly shorter than the thickness of the upper housing 2. Further, as shown in FIG. 3B, the length of the recess 14 is longer than the diameter of the protrusion 13 along the 12 o'clock 6 o'clock direction. Thereby, the recessed part 14 is comprised so that the base part of the projection part 13 may be elastically deformed when the timepiece module 1 receives an impact from 3 o'clock 9 o'clock.

Next, the operation of the timepiece module 1 will be described.
When assembling the timepiece module 1, first, the display panel 10 is disposed in the upper housing 2, and the circuit board 4 is disposed on the lower surface of the upper housing 2. At this time, the plurality of protrusions 13 provided on the lower surface of the upper housing 2 are inserted into the plurality of through holes 4 a of the circuit board 4 to position the circuit board 4 with respect to the upper housing 2.

  In this state, the lower housing 3 is disposed under the circuit board 4. At this time, each protrusion 14 of the upper housing 2 protruding downward from the through hole 4 a of the circuit board 4 is inserted into a plurality of holes 12 provided in the lower housing 3. Thereby, the lower housing 3 is positioned with respect to the upper housing 2. At this time, the hook portion 6 of the upper housing 2 moves downward along the side surface of the lower housing 3 and is locked by the locking projection portion 8 provided on the side surface of the lower housing 3.

  Thereby, the upper housing 2 and the lower housing 3 are temporarily fixed with the circuit board 4 interposed therebetween. In this state, the upper housing 2 and the lower housing 3 are attached to each other. At this time, the base plate 5 is disposed on the lower surface of the lower housing 3, the plurality of hook portions 5 a of the base plate 5 are protruded upward along the side surface of the lower housing 3, and the tip ends of the protruding hook portions 5 a are The plurality of locking protrusions 7 provided on the side surface of the housing 2 are locked. As a result, the upper housing 2 and the lower housing 3 are attached to each other with the circuit board 4 interposed therebetween.

  Such a watch module 1 is used by being incorporated in a watch case (not shown). In this case, watch bands (not shown) are attached to the 12 o'clock side and the 6 o'clock side of the watch case. For this reason, when the watch case receives an impact from the side, it becomes easy to receive an impact from the 3 o'clock 9 o'clock direction of the watch case, and the impact load direction from the side is limited.

  As described above, when the wristwatch case receives an impact from 3 o'clock to 9 o'clock, loads are applied to the upper housing 2 and the lower housing 3 of the timepiece module 1 along both surface directions. At this time, a large load is generated in the direction in which the lower housing 3 in which the heavy battery 11 is disposed is displaced with respect to the upper housing 2, and the projection 13 formed integrally with the upper housing 2 by this large load. A force in the direction of shearing the base portion is applied.

  At this time, since the concave portion 14 is provided at the base portion of the protruding portion 13, when the load in the direction of shearing the base portion of the protruding portion 13 is applied, the concave portion 14 causes the base portion of the protruding portion 13 to be elastic. Transforms into Since the impact is buffered by the elastic deformation of the base portion, it is possible to prevent the protrusion 13 from being bent and damaged by a load caused by the impact. In addition, when the timepiece module 1 receives an impact in the thickness direction, a load in the compression direction is applied to the protrusion 13, so that the protrusion 13 can sufficiently withstand the load due to the impact.

  As described above, according to the watch module 1 of the wristwatch, the lower housing 3 provided with the hole 12, the protrusion 13 inserted into the hole 12 of the lower housing 3 and positioned, and the root of the protrusion 13 And the upper housing 2 having the concave portion 14 provided at a position located in the direction of impact load from the side of the portion, preventing the protrusion 13 from being damaged due to the impact from the side, and impact resistance. Can be improved.

  That is, in the timepiece module 1, when the upper housing 2 and the lower housing 3 are subjected to an impact from the side, the protrusion 13 is elastically deformed by the recess 14 provided at the base of the protrusion 13 of the upper housing 2. The shock can be buffered. For this reason, it can suppress reliably and favorably that the projection part 13 bends and is damaged by the impact from a side, and can thereby aim at the improvement of impact resistance.

  In this case, the watch module 1 is used by being incorporated in a watch case (not shown) to which a watch band (not shown) is attached at the 12 o'clock side and the 6 o'clock side. It is easy to receive an impact from the direction of time. In consideration of this, by providing the recesses 14 at the 3 o'clock side and the 9 o'clock side of the base portion of the protrusion 13, the recesses 14 can be formed only at necessary portions.

  For this reason, when the timepiece module 1 receives an impact from 3 o'clock to 9 o'clock, it is possible to reliably and satisfactorily prevent the projection 13 from being damaged by the load caused by the impact, and the recess 14 Since it is not provided over the unnecessary part, it can prevent that the intensity | strength of the projection part 13 falls by the recessed part 14 unnecessarily.

  That is, since the concave portion 14 is not provided in the direction orthogonal to the direction in which the impact is applied, the rigidity of the root portion of the protrusion 13 positioned in the direction orthogonal to the impact direction can be ensured. A decrease in rigidity at the root portion can be minimized, and the impact resistance can also be improved.

  In addition, the positions where the recesses 14 are provided are easy to position because only one set parallel to each other is formed on both sides of the protrusion 13 instead of the entire periphery of the base of the protrusion 13. Further, since the protruding portion 13 is formed integrally with the upper housing 2, an increase in the number of parts can be prevented, and the assembling operation can be simplified, thereby reducing the cost. .

  In the timepiece module 1, the heavy battery 11 is housed in the lower housing 3 of the upper housing 2 and the lower housing 3. A large load in the direction of shearing the base portion of the protrusion 13 of the upper housing 2 is applied due to the weight. However, at this time, the base portion of the protrusion 13 is elastically deformed by the recess 14 so as to ensure the impact. And it can buffer well.

(Second Embodiment)
Next, a second embodiment in which the present invention is applied to a wristwatch will be described with reference to FIGS. 4 (a) and 4 (b). In addition, the same code | symbol is attached | subjected and demonstrated to the same part as 1st Embodiment shown by FIGS. 1-3.
As shown in FIGS. 4 (a) and 4 (b), this wristwatch has a configuration in which slit-like grooves 20 are provided in a plurality of protrusions 13 formed integrally with the upper housing 2, respectively. Has substantially the same configuration as that of the first embodiment.

  That is, as shown in FIGS. 4A and 4B, the slit-like groove 20 for buffering the impact is in the direction of impact load from the side, ie, 3 o'clock, with the axial center of the protrusion 13 as a boundary. It is provided from the tip of the protrusion 13 to the base so that the protrusion 13 is divided into two parts on the side and the 9 o'clock side.

  More specifically, as shown in FIG. 4A, the depth of the groove 20 is larger than the height of the protrusion 13, and exceeds the thickness of the circuit board 4 to the lower half of the thickness direction of the upper housing 2. The depth is reached. Therefore, when viewed from the cross section, a part of the groove 20 is located at a height where it overlaps the concave portion 14. That is, the protruding portion 13 is provided with a slit-like groove 20 in a direction parallel to the concave portion 14 from the tip portion toward the root portion.

  When a band is attached to the timepiece module 1, the direction in which the recesses 14 are parallel to each other is parallel to the longitudinal direction of the band. Thus, since this groove 20 is provided in a direction orthogonal to the impact load direction from the side, when the load due to the impact from the 3 o'clock direction is applied, The protrusion 13 itself is configured to be elastically deformed.

  According to such a timepiece module 1, since the slit-like groove 20 is provided in the protrusion 13, when the upper housing 2 and the lower housing 3 receive an impact from the side, the first embodiment In the same manner as described above, the projection 13 can be elastically deformed by the recess 14 provided at the base of the projection 13, and the projection 13 itself can be deformed by the slit-like groove 20 provided in the projection 13. It can be elastically deformed.

  For this reason, when the upper housing 2 and the lower housing 3 receive an impact from the side, the concave portion 14 and the slit-like groove 20 cause the base portion of the protruding portion 13 and the protruding portion 13 itself to elastically deform. , Shock can be reliably and satisfactorily buffered. Thereby, it is possible to prevent the protrusion 13 from being bent and damaged due to an impact from the side more reliably and better than the first embodiment, so that the impact resistance can be further improved. it can.

  In each of the first and second embodiments described above, the case where the concave portions 14 are linearly provided at the 3 o'clock side and the 9 o'clock side in the base portion of the protruding portion 13 has been described. You may provide a recessed part in a semicircular arc shape in the 3 o'clock side and 9 o'clock side in the base part of the projection part 13. If comprised in this way, except the impact from 12 o'clock 6 o'clock direction, the protrusion part 13 can be elastically deformed in the wide range by the impact from other directions by the semicircular arc shaped recessed part.

  Further, in each of the first and second embodiments and the modifications thereof described above, the case where the recesses 14 are provided in the direction in which the impact is applied, that is, the 3 o'clock side and the 9 o'clock side is described. The structure which provided the recessed part cyclically | annularly over the perimeter of the root part of the part 13 may be sufficient.

  Further, in each of the first and second embodiments described above, the case where the inside of the concave portion provided in the base portion of the protruding portion 13 is formed as a space is described. A configuration in which an elastic member such as rubber is packed may be used. If comprised in this way, the elastic deformation of the base part of the projection part 13 by a recessed part can be adjusted with elastic members, such as rubber | gum.

  In the first and second embodiments described above, the case where the hole 12 is provided in the lower housing 3 and the protrusion 13 and the recess 14 are provided in the upper housing 2 has been described. 3 may be configured such that the protrusion 13 and the recess 14 are provided, and the hole 12 is provided in the upper housing 2.

  Furthermore, in each of the first and second embodiments and the modifications thereof described above, the case where the present invention is applied to a wristwatch has been described. However, the present invention is not necessarily a wristwatch. For example, a travel watch, an alarm clock, a table clock, a wall clock, etc. It can be applied to various watches. In addition, the present invention can be widely applied to electronic devices such as mobile phones and portable information terminals as well as watches.

As mentioned above, although several embodiment of this invention was described, this invention is not restricted to these, The invention described in the claim and its equal range are included.
The invention described in the claims of the present application will be appended below.

(Appendix)
The invention according to claim 1 has a first housing provided with a hole, and a protrusion that is inserted into the hole of the first housing, and is located on both sides of a root portion of the protrusion. And a second housing in which a pair of recesses having a length longer than the diameter of the protrusion is formed in parallel to each other.

  According to a second aspect of the present invention, in the module according to the first aspect, the projecting portion is provided with a slit-like groove in a direction parallel to the concave portion from the tip portion toward the root portion. It is a module characterized by having.

  According to a third aspect of the present invention, in the module according to the second aspect, the depth of the groove is larger than the height of the protrusion.

  According to a fourth aspect of the present invention, in the module according to any one of the first to third aspects, a battery is accommodated in one of the first housing and the second housing. It is a module characterized by having.

  The invention according to claim 5 includes the module according to any one of claims 1 to 4 and a band, and the forming direction of the recesses parallel to each other and the longitudinal direction of the band are parallel to each other. It is a watch characterized by being.

1 Clock module 2 Upper housing (second housing)
3 Lower housing (first housing)
4 Circuit board 5 Ground plate 5a, 6 Hook part 7, 8 Locking projection part 10 Display panel 11 Battery 12 Hole 13 Projection part 14 Recess 20 Groove

Claims (5)

A first housing provided with a hole;
Protrusions inserted into the holes of the first housing, and a pair of recesses having a length longer than the diameter of the protrusions are parallel to each other at positions located on both sides of the base of the protrusions. A formed second housing;
A module characterized by comprising:   2. The module according to claim 1, wherein a slit-like groove is provided on the protrusion from the tip portion toward the root portion in a direction parallel to the recess. 3.   The module according to claim 2, wherein the depth of the groove is larger than the height of the protrusion.   4. The module according to claim 1, wherein a battery is accommodated in one of the first housing and the second housing. 5. A module according to any one of claims 1 to 4 and a band.
2. A timepiece according to claim 1, wherein a direction in which the recesses are parallel to each other and a longitudinal direction of the band are parallel to each other.

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