JP2014059264A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus capable of improving the reception sensitivity of an antenna, and securing sufficient airtightness and waterproofness.SOLUTION: The electronic apparatus includes: a wrist watch case 1 whose upper and lower parts are opened; a watch module 4 having an antenna 6 disposed in the wrist watch case 1; and a rear cover 3 attached to the lower part of the wrist watch case 1. The rear cover 3 includes: a metallic cover main body 7 formed with an opening 8 at a place corresponding to the antenna 6; and a non-conductive closure part 9 made of synthetic resin to be joined via recesses and protrusions 15a whose diameters are nanometer sizes to the marginal part of the opening 8 of the cover main body 7 for closing the opening 8. Therefore, it is possible to receive a radio wave via the closure part 9 made of synthetic resin disposed in the opening 8 of the metallic cover main body 7. Thus, it is possible to improve the reception sensitivity of the antenna 6. Also, it is possible to surely and firmly join the closure part 9 made of synthetic resin to the marginal part of the opening 8 of the metallic cover main body 7 via the recesses and protrusions 15a whose diameters are nanometer sizes.

Description

  The present invention relates to an electronic device having an antenna such as an electronic wristwatch, a mobile phone, and a portable information terminal.

  For example, in an electronic wristwatch, as described in Patent Document 1, an upper case in which a watch glass is provided in an upper opening, a lower case attached to a lower portion of the upper case, and the upper case and the lower case And a watch module having an antenna arranged in a case, and having a configuration in which an opening is provided at a position corresponding to the antenna in the lower case, and a plate having no electrical conductivity is provided in the opening. ing.

JP 2001-33571 A

  However, in such an electronic wristwatch, the plate provided in the opening of the lower case is formed of a material having no electrical conductivity, such as ceramic or glass, so that the plate of the lower case and the upper case are formed. Even if the reception sensitivity of the antenna can be improved by the watch glass, it is not possible to ensure sufficient bonding strength because the structure is simply provided with a plate having no electrical conductivity in the opening of the lower case. There is a problem that sufficient airtightness and waterproofness cannot be ensured.

  The problem to be solved by the present invention is to provide an electronic device capable of improving the receiving sensitivity of an antenna and ensuring sufficient airtightness and waterproofness.

  The present invention includes a case main body whose upper and lower portions are opened, a module having an antenna disposed in the case main body, and a back cover attached to a lower portion of the case main body, and the back cover includes the antenna. A metal lid body provided with a recess and an opening at a location corresponding to the above, and an edge of the lid body with the recess and the opening are joined via an uneven portion having a diameter of nanometer size. The electronic device has a closing portion made of a non-conductive synthetic resin that closes the opening.

  According to the present invention, when receiving radio waves with the antenna, radio waves can be received through the closed portion made of non-conductive synthetic resin provided in the opening of the metal lid body. Sensitivity can be improved. In addition, it is possible to securely and firmly join the closed part made of non-conductive synthetic resin to the edge of the opening part of the metal lid body with the uneven part having a diameter of nanometer size. And airtightness can be ensured.

It is an expanded sectional view of the important section showing a 1st embodiment which applied this invention to an electronic wristwatch. FIG. 2 shows a back cover of the electronic wristwatch shown in FIG. 1, wherein (a) is an enlarged perspective view showing the upper surface side, and (b) is an enlarged perspective view showing the lower surface side thereof. 2 shows a manufacturing process of the back cover shown in FIG. 2, (a) is an enlarged cross-sectional view of the main part showing a state in which the cover body of the back cover is made of metal, and (b) is a non-conductive state on the cover body. The expanded sectional view of the principal part which showed the state which formed the obstruction | occlusion part which consists of synthetic resins by insert molding, (c) showed the state which provided the decoration layer and the protective layer in the obstruction | occlusion part insert-molded in the lid body in order It is an expanded sectional view of the principal part. It is the expanded sectional view of the principal part which showed 2nd Embodiment which applied this invention to the electronic wristwatch. It is an expanded sectional view of the important section showing a 3rd embodiment which applied this invention to an electronic wristwatch.

(First embodiment)
A first embodiment in which the present invention is applied to an electronic wristwatch will be described below with reference to FIGS.
As shown in FIG. 1, the electronic wristwatch includes a wristwatch case 1. The wristwatch case 1 is made of metal or synthetic resin and is formed in a cylindrical shape that is open up and down.

  As shown in FIG. 1, a watch glass 2 that transmits radio waves is attached to the upper opening of the watch case 1 via a packing 2 a, and a back cover 3 is attached to the lower opening of the watch case 1. It is attached via a waterproof packing 3a. A watch module 4 is disposed inside the watch case 1 via an inner frame 5.

  As shown in FIG. 1, the timepiece module 4 has a housing 4a made of synthetic resin. Although not shown, the housing 4a is provided with various parts necessary for the clock function such as a clock movement for moving the hands and a display panel for displaying the time electro-optically. The housing 4a is provided with an antenna 6 for receiving standard radio waves including time data.

  As shown in FIG. 1, the middle frame 5 is made of a synthetic resin and is formed in a substantially cylindrical shape as a whole. The middle frame 5 is configured so that the housing 4a of the timepiece module 4 is mounted therein. The middle frame 5 is configured to be assembled in the wristwatch case 1 with the housing 4a attached.

  As shown in FIG. 1, the back cover 3 is made of a metal lid main body 7 in which an opening 8 is provided in a region including a portion corresponding to the antenna 6, and the lid main body 7 is provided to close the opening 8. A closing portion 9 made of a non-conductive synthetic resin; a decorative layer 10 provided on a lower surface which is an outer surface of the closing portion 9; and a transparent protective layer 11 provided on the lower surface of the decorative layer 10 ing.

  As shown in FIGS. 1 and 2, the lid body 7 is configured to be formed in a disc shape and attached to the lower part of the watch case 1. That is, a cylindrical projection 12 is formed on the upper surface of the lid body 7. A male screw 12 a is formed on the outer peripheral surface of the cylindrical protrusion 12.

  In this case, as shown in FIG. 1, a notch 13 into which the protrusion 12 of the lid body 7 is inserted from the lower side is formed in an annular shape at the lower part of the inner peripheral surface of the watch case 1. On the inner peripheral surface of the annular notch portion 13, a female screw 13 a to which the male screw 12 a of the protrusion 12 is screwed is formed.

  Further, a mounting groove 14 in which the waterproof packing 3a is mounted is provided in an annular shape on the lower surface located on the outer peripheral side of the notch 13 of the wristwatch case 1. The mounting groove 14 is formed so that the depth thereof is slightly shallower than the cross-sectional shape of the waterproof packing 3a so that the waterproof packing 3a protrudes downward when the waterproof packing 3a is mounted therein.

  Thereby, when the lid body 7 is attached to the lower part of the watch case 1 as shown in FIG. 1, the waterproof packing 3a is attached to the attachment groove 14 of the watch case 1, and in this state, the protrusion of the lid body 7 When the lid main body 7 is rotated while being inserted into the notch 13 from the lower side of the watch case 1, the male screw 12 a of the projection 12 is screwed into the female screw 13 a of the notch 13. 1, and the upper surface of the lid body 7 is configured to press the waterproof packing 3 a into the mounting groove 14 to achieve waterproofness.

  Further, as shown in FIGS. 1 and 2, a recess 15 is provided on the lower surface of the lid body 7 corresponding to the timepiece module 4. In the recess 15, the opening 8 is formed in a circular shape centered on the center of the lid body 7. In this case, the opening 8 is formed so as to correspond to the antenna 6 of the timepiece module 4 above it. In addition, on the inner surface of the concave portion 15 of the lid main body 7, a large number of uneven portions 15 a having a diameter of nanometer size are formed along the edge of the opening 8.

  Here, the nanometer size refers to a size of 10 to 300 nanometers (hereinafter referred to as nm). In the case of this embodiment, the diameter of the ultrafine holes of the large number of uneven portions 15a is a hole diameter having a size of 10 to 100 nm, for example, a hole diameter having a size of 20 to 300 nm or 20 to 30 nm. Further, the depth of the ultrafine holes of the large number of uneven portions 15a is about 20 nm.

  On the other hand, the closing portion 9 is made of a non-conductive synthetic resin having an insulating property, and as shown in FIGS. 1 and 2, the whole is formed in a substantially disk shape, and the inner surface of the concave portion 15 of the lid body 7, that is, It is comprised so that it may join to the edge part of the opening part 8 by the joining technique of nanometer level. That is, the closing portion 9 is joined to the inner surface of the concave portion 15 of the lid main body 7 by insert molding via a large number of concave and convex portions 15a having a nanometer size.

  In this case, the closing portion 9 is formed by biting into a large number of concave and convex portions 15 a having a diameter of nanometers formed by injection molding synthetic resin on the inner surface of the concave portion 15 of the lid body 7. Thus, the closing portion 9 is formed so that the outer peripheral portion thereof is joined to the inner surface of the concave portion 15 of the lid body 7 along the edge portion of the opening portion 8 so as to close the opening portion 8.

  That is, as shown in FIG. 1, the closing portion 9 is formed from the concave portion 15 of the lid body 7 to the opening 8, the upper surface thereof being formed on the same surface as the upper surface of the lid body 7, and the lower surface thereof It is located above the lower surface of the lid body 7 and is formed in a state shallower than the depth of the recess 15. The decorative layer 10 is obtained by performing decorative printing on a film, and is adhered to the surface of the closing portion 9 so as to cover it.

  A transparent protective layer 11 is provided on the surface of the decorative layer 10 as shown in FIG. The protective layer 11 is formed so that its lower surface is flush with the lower surface of the lid body 7. Thus, the back cover 3 is configured such that when the lid body 7 is attached to the watch case 1, the blocking portion 9 is not visible from the outside, and the decorative layer 10 is visible through the protective layer 11.

Next, the case where the back cover 3 of the wristwatch case 1 is manufactured will be described.
First, as shown in FIG. 3A, the lid body 7 is made of metal. At this time, a cylindrical projection 12 is formed in advance on the upper surface of the lid main body 7, and a male screw 12 a is formed on the outer peripheral surface of the cylindrical projection 12. Further, a circular recess 15 (radius R + W) is formed on the back surface of the lid body 7, and a circular opening 8 (radius R) is formed in the circular recess 15. The difference W between the radii of the recess 15 (radius R + W) and the opening 8 (radius R) is equal to or greater than a predetermined ratio with respect to the radius R of the opening 8 (for example, W ≧ 0.2R).

  And many uneven | corrugated | grooved parts 15a whose diameter is a nanometer size are formed in the inner surface of the recessed part 15. As shown in FIG. At this time, the lid body 7 is immersed in an alkaline solution for degreasing treatment, and then immersed in an acid solution for neutralization and cleaning. Next, the lid body 7 is immersed in an erodible aqueous solution or erosive suspension to form a large number of irregularities 15 a having a diameter of nanometers on the inner surface of the recess 15 and the inner peripheral surface of the opening 8 of the lid body 7. To do.

  At this time, the outer surface of the lid main body 7 is covered with a jig or a mask, and only the inner surface of the concave portion 15 of the lid main body 7 and the inner peripheral surface of the opening 8 are exposed and immersed, whereby the concave portion 15 of the lid main body 7 is exposed. A large number of concave and convex portions 15 a having a diameter of nanometer are formed only on the inner surface and the inner peripheral surface of the opening 8. Further, as the erodible aqueous solution or erodible suspension for forming the numerous uneven portions 15a having a diameter of nanometer size, hydrazine, ammonia, water-soluble amines, alkaline earth metal hydroxides, and the like are used. Although used, it is not limited to this.

  Then, after the lid body 7 is washed with water and dried, as shown in FIG. 3 (b), a closed portion made of non-conductive synthetic resin is formed in the recess 15 and the opening 8 of the lid body 7 by insert molding. 9 is formed. At this time, the lid body 7 is placed in an injection mold, and in this state, a non-conductive synthetic resin for injection molding is injected into the mold.

  Then, the synthetic resin for injection molding injected into the mold bites into a large number of uneven portions 15a having a diameter of nanometers formed on the inner surface of the recess 15 and the inner peripheral surface of the opening 8 of the lid body 7. In this state, the lid body 7 is integrally formed from the recess 15 to the opening 8. As a result, the closing portion 9 made of non-conductive synthetic resin is formed in a predetermined shape by the mold, and in this state, the closing portion 9 is joined to the inner surface of the recess 15 of the lid main body 7. 9 is airtight and waterproof.

  Thereafter, the mold is released and the molded product is taken out from the mold, so that the closed portion 9 made of non-conductive synthetic resin is joined into the recess 15 and the opening 8 of the lid body 7 so as to be integrated. A molded product formed in the above is obtained. In this case, as shown in FIG. 3B, the closing portion 9 is formed from the recess 15 of the lid body 7 to the opening 8, and the upper surface thereof is formed on the same surface as the upper surface of the lid body 7. The lower surface is formed above the lower surface of the lid body 7 and is shallower than the depth of the recess 15.

  Thereafter, as shown in FIG. 3C, a decorative layer 10 made of a film on which decorative printing has been applied is adhered to the lower surface of the closed portion 9, and the closed portion 9 is covered with the decorative portion 10. A transparent protective layer 11 is provided on the lower surface of the decorative layer 10, and the decorative layer 10 is protected by the protective layer 11. Thereby, the back cover 3 is manufactured.

Next, the case where such a back cover 3 is attached to the lower part of the wristwatch case 1 will be described.
In this case, the watch glass 2 is attached to the upper opening of the watch case 1 in advance, and the watch module 4 is mounted in the watch case 1 by the middle frame 5. Then, the waterproof packing 3 a is attached to the attachment groove 14 of the watch case 1.

  In this state, when the lid body 7 is rotated while the protrusion 12 of the lid body 7 of the back cover 3 is inserted into the notch 13 from the lower side of the watch case 1, the male screw 12a of the protrusion 12 is notched. Screwed into the female screw 13a of the portion 13. Then, the upper surface of the metal lid body 7 presses the waterproof packing 3 a into the mounting groove 14, and the back lid 3 is attached to the lower part of the watch case 1. Thereby, the waterproof property between the back cover 3 and the watch case 1 is achieved.

  In this state, the closed portion 9 made of non-conductive synthetic resin is joined to the concave portion 15 formed in the lid main body 7 of the back lid 3 via a large number of concave and convex portions 15a having a nanometer size, and the lid The airtightness and waterproofness between the main body 7 and the closed portion 9 are achieved, and the closed portion 9 made of non-conductive synthetic resin joined to the lower side of the antenna 6 incorporated in the watch module 4. To do. For this reason, the receiving sensitivity of the antenna 6 is improved.

  As described above, according to this electronic wristwatch, the wristwatch case 1 whose upper and lower portions are opened, the watch module 4 having the antenna 6 disposed in the watch case 1, and the back attached to the lower portion of the watch case 1. The lid 3 has a metal lid body 7 having an opening 8 at least at a location corresponding to the antenna 6, and the edge of the opening 8 of the lid body 7 has a diameter of nanometer size. In addition, the receiving sensitivity of the antenna 6 can be improved and the waterproofing performance can be achieved by having the closed portion 9 made of a non-conductive synthetic resin that is joined via the concave and convex portion 15a. In addition, sufficient airtightness can be secured.

  That is, in this electronic wristwatch, when receiving the radio wave with the antenna 6, the radio wave can be received through the closed portion 9 made of non-conductive synthetic resin provided in the opening 8 of the metal lid body 7. Therefore, the receiving sensitivity of the antenna 6 can be improved. In addition, the closed portion 9 made of non-conductive synthetic resin can be reliably and firmly joined to the edge portion of the opening portion 8 of the metal lid body 7 by the uneven portion 15a having a diameter of nanometer size. Water resistance and airtightness can be sufficiently secured.

  In this case, the lid body 7 is provided with a recess 15 at a position corresponding to the watch module 4, and an opening 8 is provided in the recess 15. The inner surface of the recess 15 has a diameter of nanometer size. An uneven portion 15a is formed along the edge of the opening 8, and a closed portion 9 made of non-conductive synthetic resin is joined to the inner surface of the recessed portion 15 where the uneven portion 15a is formed by insert molding. Thereby, the closure part 9 which consists of nonelectroconductive synthetic resin can be reliably and firmly provided in the metal lid body 7.

  That is, in the case back 3, by forming the opening 8 in the recess 15 in the metal lid body 7, the inner surface of the recess 15 can be formed as a joint surface of the closing portion 9. When the blocking portion 9 made of non-conductive synthetic resin is joined to the inner surface of the metal by insert molding, a sufficiently large bonding area can be secured, so the blocking portion 9 made of conductive synthetic resin is made of metal. The lid body 7 can be reliably and firmly provided.

Further, in the case back 3, the decorative layer 10 is provided on the lower surface of the closing portion 9,
Even if the closed portion 9 joined to the lid body 7 is formed in an unpreferable state in design, the closed portion 9 can be covered with the decorative layer 10 to improve the design and decorativeness. As the material 9, it is possible to freely select and form a non-conductive synthetic resin that can be easily joined to the lid body 7.

  In this case, since the transparent protective layer 11 is provided on the lower surface of the decorative layer 10, the decorative layer 10 can be seen through the transparent protective layer 11, thereby ensuring decorativeness and design. The decorative layer 10 can be well protected by the transparent protective layer 11 so that the decorative layer 10 is not scratched or soiled.

(Second Embodiment)
Next, a second embodiment in which the present invention is applied to an electronic wristwatch will be described with reference to FIG. 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 FIG. 4, this electronic wrist watch has a configuration in which a middle frame 21 is formed integrally with the closing portion 20 of the back cover 3, and the other configuration is substantially the same as that of the first embodiment.

  In this case, as shown in FIG. 4, the lid body 7 of the back lid 3 is provided with a recess 22 on the upper surface thereof corresponding to the timepiece module 4 including the inner frame 21. In the recess 22, as in the first embodiment, the opening 8 is formed in a circular shape in a region including a portion corresponding to the antenna 6 of the timepiece module 4. Further, as in the first embodiment, a large number of concave and convex portions 15 a having a diameter of nanometer are formed on the inner surface of the concave portion 22.

  On the other hand, as shown in FIG. 4, a closing portion 20 made of a non-conductive synthetic resin is joined in the recess 22 through a large number of uneven portions 15 a having a diameter of nanometers. As in the first embodiment, the closing portion 20 is made of a non-conductive synthetic resin that can be easily bonded to the inner surface of the recess 22, and is formed from the recess 22 to the opening 8. In this case, the closing portion 20 is formed so that the upper surface thereof is flush with the upper surface of the lid main body 7 and the lower surface is located in the intermediate portion in the depth direction in the opening 8.

  In addition, a decorative layer 10 is provided on the lower surface of the closing portion 20 located in the opening 8 as in the first embodiment. Further, as shown in FIG. 4, a synthetic resin inner frame 21 is integrally formed in the closing portion 9. The inner frame 21 is formed in a cylindrical shape as in the first embodiment, and is configured such that the housing a of the timepiece module 4 is mounted therein. The inner frame 21 is formed integrally with the closing portion 9 when the closing portion 20 made of non-conductive synthetic resin is insert-molded into the lid body 7.

  According to such an electronic wristwatch, as in the first embodiment, when receiving radio waves with the antenna 6, the radio waves pass through the blocking portion 20 made of nonconductive synthetic resin provided in the opening 8 of the lid body 7. Therefore, the receiving sensitivity of the antenna 6 can be improved. Further, since the closed portion 20 can be reliably and firmly joined to the inner surface of the recess 22 which is the edge of the opening 8 of the lid body 7 by the uneven portion 15a having a diameter of nanometer size, it is waterproof and airtight. Sufficient sex can be secured.

  Further, in this electronic wristwatch, since the middle frame 21 is formed integrally with the closing portion 20, the number of parts can be reduced and the assembling work can be simplified. That is, when the timepiece module 4 is assembled to the inner frame 21 and the back cover 3 is attached to the wristwatch case 1 in this state, the timepiece module 4 can also be incorporated at the same time, so that the assembling work can be simplified. As a result, productivity can be improved.

(Third embodiment)
Next, a third embodiment to which the present invention is applied will be described with reference to FIG. Also in this case, the same parts as those in the first embodiment shown in FIGS.
As shown in FIG. 5, the electronic wrist watch has a configuration in which a position restricting portion 25 is formed integrally with the closing portion 9 of the back cover 3, and the other configuration is substantially the same as that of the first embodiment.

  That is, as shown in FIG. 5, the position restricting portion 25 is formed to protrude toward the timepiece module 4 on the upper surface of the closing portion 9 located in the opening 8 of the lid body 7. In this case, a position restricting recess 26 into which the position restricting portion 25 is inserted from below is provided on the lower surface of the housing 4a of the timepiece module 4. Further, the position restricting portion 25 is integrally formed at the same time when the closing portion 9 is formed in the lid body 7 by insert molding.

  In such an electronic wristwatch, the same effect as that of the first embodiment is obtained, and the position restricting portion 25 is formed integrally with the closing portion 9. Therefore, when the back cover 3 is attached to the watch case 1, The timepiece module 4 can be accurately positioned in the watch case 1 by inserting the restriction portion 25 into the position restriction recess 26 provided in the housing 4 a of the timepiece module 4. Also in this case, the position restricting portion 25 can be formed integrally with the closing portion 9 at the same time when the closing portion 9 is insert-molded into the lid body 7, so that the manufacturing can be facilitated.

  In each of the first to third embodiments described above, a cylindrical protrusion 12 is provided on the lid body 7 of the back cover 3, and a male screw 12 a is provided on the outer peripheral surface of the protrusion 12. Although the case where the male screw 12a is configured to be screwed into the female screw 13a provided on the inner peripheral surface of the notch portion 13 of the watch case 1 has been described, the present invention is not limited thereto, and the watch case is covered with a plurality of screw members. The structure attached to the lower surface of 1 may be sufficient.

  In the first to third embodiments described above, the case where the present invention is applied to an electronic watch has been described. However, the present invention is not necessarily an electronic watch. In addition to being applicable to watches, it can also be applied to electronic devices such as mobile phones and portable information terminals.

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 includes a case main body whose upper and lower portions are open, a module having an antenna disposed in the case main body, and a back cover attached to the lower portion of the case main body.
The back cover is a metal lid body provided with a recess and an opening at a location corresponding to the antenna, and an unevenness having a diameter of nanometers at the edge of the recess and the opening of the lid body An electronic apparatus comprising: a closed portion made of non-conductive synthetic resin that is bonded via a portion and closes the opening.

  According to a second aspect of the present invention, in the electronic device according to the first aspect of the present invention, the joint width in the inward direction of the back cover surface of the edge portion where the lid body and the closing portion are joined is the opening portion. The electronic device is set based on the size of the electronic device.

  A third aspect of the present invention is the electronic device according to the first or second aspect, wherein a decorative layer is provided on the outer surface of the closing portion.

  According to a fourth aspect of the present invention, in the electronic device according to any one of the first to third aspects, an inner frame for accommodating the module in the case body is integrally formed in the closing portion. It is an electronic device characterized by the above.

  According to a fifth aspect of the present invention, in the electronic device according to any one of the first to fourth aspects, the closing portion is provided with a position restricting portion for positioning the module with respect to the case body. It is an electronic device characterized by being.

DESCRIPTION OF SYMBOLS 1 Watch case 2 Watch glass 3 Back cover 4 Watch module 4a Housing 5, 21 Middle frame 6 Antenna 7 Lid body 8 Opening part 9, 20 Closure part 10 Decoration layer 11 Protective layer 15, 22 Concave part 15a Concavity and convexity of nanometer size Part 25 Position restriction part 26 Position restriction recess

Claims (5)

A case body having an open upper and lower part, a module having an antenna disposed in the case body, and a back cover attached to the lower part of the case body,
The back cover is a metal lid body provided with a recess and an opening at a location corresponding to the antenna, and an unevenness having a diameter of nanometers at the edge of the recess and the opening of the lid body An electronic device comprising: a closed portion made of a non-conductive synthetic resin that is bonded via a portion and closes the opening.   2. The electronic device according to claim 1, wherein a bonding width in an inward direction of the back cover surface of the edge portion where the lid main body and the closing portion are bonded is set based on a size of the opening. An electronic device characterized by that.   3. The electronic device according to claim 1, wherein a decorative layer is provided on an outer surface of the closing portion. 4.   4. The electronic device according to claim 1, wherein an inner frame for accommodating the module in the case main body is integrally formed in the closing portion. 5. . 5. The electronic device according to claim 1, wherein the closing portion is provided with a position restricting portion for positioning the module with respect to the case main body. machine.

Images