JP6323715B2 - Cap mounting structure and electronic equipment - Google Patents

Description

  The present invention relates to a cap mounting structure used in various electronic devices such as a mobile terminal and a mobile phone, and an electronic device including the same.

  For example, as described in Patent Document 1, the cellular phone is configured to waterproof the opening of the device case by detachably attaching a cap member to the opening provided in the device case. Is known.

JP 2012-252794 A

  The cap member of such a mobile phone is formed of a synthetic resin in a main body portion and a hinge portion, and a seal portion made of an elastic material on an outer periphery of a fitting portion that is provided on the main body portion and engages with an opening portion of a device case. Is provided. Since such a cap member has a structure in which a seal portion made of an elastic material is provided in the fitting portion of the main body portion, there is a problem that the structure is complicated and the number of parts increases.

  In order to solve such a problem, it is considered that the cap member is formed of an elastic material. However, if the cap member is formed of an elastic material, the cap member is easily detached from the opening of the device case. For this reason, it is necessary to firmly fix the hinge portion of the cap member to the device case with the screw member.

  However, when the hinge portion of the cap member is fixed to the device case with the screw member, the cap member is elastically rotated and displaced with the screwing of the screw member, so that the waterproof property may be impaired.

  The problem to be solved by the present invention is to provide a cap mounting structure that can prevent rotational displacement of the cap member due to screwing and ensure waterproofness, and an electronic apparatus including the cap mounting structure.

  The present invention includes a case provided with an opening, a cap member that closes the opening of the case so as to be opened and closed, a screw member that attaches the cap member to the case, and the cap that is associated with screwing of the screw member. An anti-rotation portion that restricts rotational displacement of the member, and the anti-rotation portion includes an inclined engagement portion provided on the cap member, and an inclined engagement portion of the cap member provided on the case. A cap mounting structure characterized by having an inclined locking portion for locking.

  According to this invention, when the cap member that closes the opening of the case is attached to the case with the screw member, even if the cap member is rotationally displaced along with the screwing of the screw member, Since the inclined locking portions can be engaged with each other, the rotational displacement of the cap member accompanying the screwing of the screw member can be reliably regulated. For this reason, the rotation displacement of the cap member by screwing can be suppressed, and waterproofness can be ensured.

It is the front view which showed one Embodiment which applied this invention to the portable terminal device. FIG. 2 is a rear view of the mobile terminal shown in FIG. 1. FIG. 3 is an enlarged perspective view of a main part illustrating a state in which a cap member is removed from a lower case of the mobile terminal shown in FIG. 2. It is the expansion perspective view of the principal part which looked at the lower case shown by FIG. 3 from the inside. FIG. 3 is an enlarged perspective view showing a cap member shown in FIG. 2. It is the expanded sectional view which showed the principal part in the AA arrow of the cap member shown by FIG. It is the expanded sectional view which showed the principal part in the BB arrow of the cap member shown by FIG.

Hereinafter, an embodiment in which the present invention is applied to a mobile terminal will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the portable terminal includes a rectangular device case 1 that is long in the front-rear direction (vertical direction in FIG. 1). The device case 1 has an upper case 2 and a lower case 3, and is configured such that a module (not shown) is incorporated therein.

  As shown in FIG. 1, the upper case 2 is configured so that the upper surface is formed in a substantially flat plate shape having a rectangular shape, and the outer peripheral side surface portion is attached to the lower case 3. In this case, a display window portion 4 is provided in a substantially upper half of the upper surface of the upper case 2, and a key input portion 5 is provided in a substantially lower half of the upper case 2.

  As shown in FIG. 1, the display window portion 4 is formed in a substantially rectangular shape on the upper surface of the upper case 2, and a display panel 4a provided in the upper case 2 is arranged corresponding to the display window 4a. The displayed information is configured to be visible from above the upper case 2. The key input unit 5 includes various keys necessary for a portable terminal such as a numeric keypad, a cursor key, and a function key.

  As shown in FIG. 2, the lower case 3 has a substantially flat central portion along the longitudinal direction on the back surface (the surface of the paper surface in FIG. 2), and both side surface portions along the longitudinal direction face the back surface. The upper case 2 is configured such that the lower part of the side part of the upper case 2 is attached to the upper part of the side part (the lower part located on the back side of the paper surface in FIG. 2).

  As shown in FIG. 2, a reading window portion 6 of an optical reading portion (not shown) is provided on the back surface (the front surface of the paper surface in FIG. 2) located on the upper side of the lower case 3. The optical reading unit is configured to read a barcode or the like of an article by emitting a laser beam from the reading window unit 6 of the lower case 3 to the outside of the device case 1 and receiving reflected light of the laser beam. ing.

  Further, as shown in FIG. 2, a battery lid 7 is attached to the lower side of the lower case 3 so as to cover a battery housing portion (not shown). Furthermore, the switch part 8 is provided in the both sides located in the substantially intermediate part in the front-back direction (upper and lower in FIG. 2) of this lower case 3, respectively.

  By the way, on both side portions of the lower case 3 positioned on the upper sides of these switch portions 8, as shown in FIGS. 2 and 3, a cap member 10 that closes an opening 15 to be described later is opened and closed. Are attached by each. Each of these cap members 10 has the same configuration except that the shape in the left-right direction is different. For this reason, the following description demonstrates the cap member 10 located in one side part (right side part in FIG. 2) of the lower case 3. FIG.

  The cap member 10 is formed of a synthetic resin having elasticity such as a silicone resin, a urethane resin, or an elastomer. As shown in FIGS. 2 and 5, the cap member 10 has a cap main body 12 and an attachment piece 13, which are integrally formed. The cap body 12 has a substantially quadrangular shape and is formed in a curved shape that is the same shape as the side of the lower case 3. The attachment piece 13 is provided at the end of the cap body 12 and is configured to be attached to the back surface of the lower case 3.

  In this case, as shown in FIG. 2 and FIG. 3, the cap member 10 is configured to be disposed in a cap mounting portion 14 provided on the outer peripheral surface extending from the side portion to the back surface of the lower case 3. As shown in FIG. 3, the cap mounting portion 14 has a main body mounting concave portion 14 a to which the cap main body portion 12 is mounted and an mounting mounting concave portion 14 b to which the mounting piece portion 13 is mounted. It is continuously provided on the outer surface from the side portion to the back surface.

  In this case, the main body mounting recess 14a is formed to be curved along the side portion of the lower case 3 as shown in FIG. An opening 15 is provided in the main body mounting recess 14a. The opening 15 is formed in a long rectangular shape along the longitudinal direction of the lower case 3. The opening 15 corresponds to a connector (not shown) provided in the lower case 3 and is configured to expose the connector to the outside.

  By the way, as shown in FIG. 5, the fitting part 12a fitted to the opening part 15 of the main body mounting recessed part 14a is provided in the inner surface (upper surface in FIG. 5) of the cap main-body part 12 of the cap member 10. As shown in FIG. This fitting portion 12a seals the opening 15 by being elastically fitted into the opening 15 of the main body mounting recess 14a when the cap main body 12 is elastically mounted to the main body mounting recess 14a. It is configured.

  On the other hand, as shown in FIG. 3, the mounting / mounting recess 14 b is provided on the outer surface located between the side portion and the back surface of the lower case 3. A screw mounting portion 16 to which the screw member 11 is screwed is provided in the mounting device recess 14b. As shown in FIGS. 4 and 6, the screw mounting portion 16 is formed so as to protrude in a cylindrical shape toward the lower case 3.

  As shown in FIGS. 3, 4, and 6, a screw insertion hole 16 a into which the screw member 11 is inserted is provided in the center portion of the screw attachment portion 16 without penetrating into the lower case 3. A metal nut 17 to which the screw member 11 is screwed is embedded in the bottom of the screw insertion hole 16a by insert molding. The nut 17 is provided with a female screw 17a through which the screw member 11 is screwed.

  Further, as shown in FIGS. 5 and 6, a screw insertion hole 18 corresponding to the same axis as the screw insertion hole 16 a of the screw attachment portion 16 penetrates through the central portion of the attachment piece portion 13 of the cap member 10. Is provided. A metal washer 19 is embedded in the screw insertion hole 18 by insert molding. The screw insertion hole 18 has an upper side (lower side in FIG. 5) into which the screw member 11 is inserted formed in the large diameter hole 18a, and a lower side located on the lower case 3 side formed in the small diameter hole 18b. .

  In this case, as shown in FIG. 6, the large-diameter hole portion 18a of the screw insertion hole 18 is formed so that its inner diameter is slightly larger than the outer diameter of the head portion 11a of the screw member 11, and the depth of the head portion 11a. It is formed with substantially the same length as the axial length. Further, the small diameter hole portion 18 b of the screw insertion hole 18 is formed so that its inner diameter is slightly larger than the outer diameter of the screw portion 11 b of the screw member 11.

  As a result, the small-diameter hole portion 18b of the screw insertion hole 18 has an inner diameter that is approximately the same as the screw insertion hole 16a and the hole 19a of the washer 19, as shown in FIG. In this case, the nut 17 has the female screw 17a protruding into the screw insertion hole 16a of the screw mounting portion 16, and the central axis of the female screw 17a, the central axis of the screw insertion hole 16a, and the central axis of the small diameter hole portion 18b. Are all configured to match.

  By the way, as shown in FIG. 6, the mounting piece 13 of the cap member 10 and the mounting / mounting recess 14 b of the cap mounting portion 14 rotate to restrict the rotational displacement of the cap member 10 due to screwing of the screw member 11. A stop 20 is provided. The rotation stopper 20 is provided in a plurality of inclined engagement portions 21 provided in the attachment piece 13 of the cap member 10 positioned around the screw member 11 and in the attachment mounting recess 14 b of the lower case 3. And a plurality of inclined locking portions 22 for locking the plurality of inclined engaging portions 21 of the piece 13.

  As shown in FIGS. 5 to 7, the plurality of inclined engaging portions 21 are provided radially along the periphery of the screw insertion hole 18 on the lower surface (upper surface in FIG. 5) of the mounting piece portion 13 of the cap member 10. Yes. Each of the plurality of inclined engaging portions 21 is formed as an inclined convex portion that gradually protrudes along the rotation direction of the attachment piece portion 13 of the cap member 10 when the screw member 11 is screwed.

  Further, as shown in FIGS. 3, 6, and 7, the plurality of inclined locking portions 22 are radially provided along the periphery of the screw insertion hole 16 a at the bottom in the mounting mounting recess 14 b of the cap mounting portion 14. ing. Each of the plurality of inclined locking portions 22 is formed in an inclined concave portion that becomes gradually deeper along the rotation direction of the attachment piece portion 13 of the cap member 10 when the screw member 11 is screwed.

  Thereby, as shown in FIGS. 3 and 5 to 7, in the rotation stopper 20, the cap member 10 is mounted on the cap mounting portion 14, and the fitting portion 12 a of the cap member 10 is opened to the main body mounting recess 14 a. When the plurality of inclined engaging portions 21 are fitted into the portion 15 in a state where the screw insertion holes 18 of the attachment piece portion 13 correspond to the screw insertion holes 16a of the attachment mounting recess 14b, It is comprised so that it may each engage with part 22.

  Further, as shown in FIGS. 3 and 5 to 7, the rotation stopper 20 is attached to the screw member 11 with the plurality of inclined engaging portions 21 engaged with the plurality of inclined engaging portions 22, respectively. When the screw member 11 is screwed into the screw insertion hole 16a of the mounting mounting recess 14b and then screwed into the female screw 17a of the nut 17 and tightened, the mounting piece portion is attached together with the screwing of the screw member 11. When 13 is rotationally displaced, the plurality of inclined engaging portions 21 gradually bite into the plurality of inclined engaging portions 22 to restrict the rotational displacement of the mounting piece portion 13.

Next, the operation of such a portable terminal will be described.
First, the case where the cap member 10 is attached to the cap mounting portion 14 provided in the lower case 3 of the device case 1 will be described. At this time, the cap main body portion 12 of the cap member 10 is mounted in the main body mounting concave portion 14a of the cap mounting portion 14, and the fitting portion 12a of the cap main body portion 12 is fitted into the opening 15 of the main body mounting concave portion 14a.

  At the same time, the attachment piece 13 of the cap member 10 is attached to the attachment attachment recess 14 b of the cap attachment portion 14. Then, the screw insertion hole 18 of the attachment piece 13 corresponds to the screw insertion hole 16a of the attachment attachment recess 14b on the same axis, and a plurality of inclined engagement portions 21 provided on the inner surface of the attachment piece 13 are attached and attached. It engages with a plurality of inclined locking portions 22 provided at the bottom in the recess 14b.

  In this state, the screw portion 11b of the screw member 11 is inserted from the screw insertion hole 18 of the attachment piece portion 13 into the screw insertion hole 16a of the attachment mounting recess 14b through the hole 19a of the washer 19, and the screw of the inserted screw member 11 is inserted. The portion 11b is screwed into the female screw 17a of the nut 17 embedded in the screw insertion hole 16a. At this time, the head 11 a contacts the washer 19 embedded in the screw insertion hole 18 with the head 11 a of the screw member 11 being inserted into the large-diameter hole 18 a of the screw insertion hole 18 of the mounting piece 13. .

  When the head portion 11a of the screw member 11 is tightened in this state, the head portion 11a comes into pressure contact with the washer 19 in the screw insertion hole 18, so that the attachment piece portion 13 is attached to the screw member 11 as the screw member 11 is tightened. Displaces in the direction of rotation. At this time, the plurality of inclined engaging portions 21 provided in the attachment piece 13 are engaged with the plurality of inclined engaging portions 22 provided in the attachment mounting recess 14b and gradually bite into the screw member 11. The rotational displacement of the mounting piece 13 accompanying the tightening of is restricted.

  That is, the plurality of inclined engaging portions 21 are formed in inclined convex portions that gradually protrude along the rotation direction of the attachment piece portion 13 of the cap member 10 that is associated with the screwing of the screw member 11. The portion 22 is formed in an inclined concave portion that gradually becomes deeper along the rotation direction of the attachment piece portion 13 of the cap member 10 that is associated with screwing of the screw member 11.

  Thereby, when the attachment piece 13 is displaced in the rotation direction of the screw member 11 as the screw member 11 is tightened, the plurality of inclined engaging portions 21 gradually bite in along the plurality of inclined engaging portions 22. For this reason, when the screw member 11 is tightened, the mounting piece portion 13 of the cap member 10 is made of an elastic material. Even if formed, the displacement of the mounting piece 13 in the rotational direction accompanying the tightening of the screw member 11 is suppressed.

  In this case, when the screw member 11 is tightened, the head 11 a of the screw member 11 does not bite into the attachment piece 13 more than necessary by the washer 19, so that the washer 19 is capped by the cap member 10 by the head of the screw member 11. Can be reliably pressed against the mounting piece 13. As a result, the attachment piece 13 of the cap member 10 can be reliably and well pressed and attached to the cap mounting portion 14 by the screw member 11.

  Therefore, the attachment piece 13 of the cap member 10 can be elastically favorably mounted in the attachment mounting recess 14b of the cap mounting portion 14, and the cap main body 12 is elastically favorable in the mounting body recess 14a. Thus, the fitting portion 12a of the cap main body portion 12 can be securely and satisfactorily fitted into the opening portion 15 of the mounting main body concave portion 14a, whereby the opening portion 15 can be reliably sealed.

  In this way, when the cap member 10 is mounted on the cap mounting portion 14, the cap member 10 is formed of an elastic material such as silicone resin, urethane resin, or elastomer, so that the cap body of the cap member 10 is formed. Since the mounting piece 13 of the cap member 10 can be flexibly bent when the portion 12 is pulled out from the mounting body recess 14 a of the cap mounting portion 14, the mounting body can be removed without removing the cap member 10 from the lower case 3. The opening 15 of the recess 14a can be easily and easily opened.

  Accordingly, since a connector (not shown) provided in the lower case 3 of the device case 1 can be exposed through the opened opening portion 15, the cap member 10 can be removed without removing the cap member 10 from the cap mounting portion 14. By connecting a connection member (not shown) to the exposed connector, the device case 1 and an external device (not shown) can be electrically connected.

  When removing the cap member 10 from the cap mounting portion 14, the screw member 11 is removed from the nut 17 embedded in the screw insertion hole 16 a of the mounting mounting recess 14 b, and the screw insertion hole 18 of the mounting piece portion 13 is removed. Extract from. In this state, the cap member 10 can be easily detached from the cap mounting portion 14 by removing the cap member 10 from the cap mounting portion 14.

  Thus, according to this mobile terminal, the cap member 10 that closes the opening 15 of the lower case 3 so as to be opened and closed, the screw member 11 that attaches the cap member 10 to the lower case 3, and the screw of the screw member 11 An anti-rotation portion 20 for restricting the rotational displacement of the cap member 10 accompanying the stop, and the anti-rotation portion 20 is provided on the cap member 10 located around the screw member 11 and an inclined engagement portion 21 provided thereon. By providing the lower case 3 and the inclined locking portion 22 that locks the inclined engaging portion 21 of the cap member 10, the rotational displacement of the cap member 10 due to screwing is suppressed, and the waterproof property is improved. Can be secured.

  That is, in this portable terminal, when the cap member 10 that closes the opening 15 of the lower case 3 is attached to the lower case 3 with the screw member 11, the cap member 10 is rotationally displaced along with the screwing of the screw member 11. In addition, since the inclined engaging portion 21 and the inclined engaging portion 22 of the rotation stopper 20 can be engaged with each other, the rotational displacement of the cap member 10 accompanying the screwing of the screw member 11 is reliably restricted. Can do.

  Thereby, in this portable terminal machine, the rotational displacement of the cap member 10 by screwing of the screw member 11 can be suppressed, and the opening 15 can be reliably sealed to ensure waterproofness. For this reason, while being able to stabilize the quality with respect to the waterproofness of the portable terminal as a product, the yield can be improved and the quality of the portable terminal as a product can be improved.

  In this case, the cap member 10 has a cap body portion 12 and an attachment piece portion 13, and a cap mounting portion 14 to which the cap member 10 is mounted is provided on the outer peripheral surface of the lower case 3. Has a main body mounting portion concave portion 14a and an attachment mounting concave portion 14b, and an opening 15 is provided in the main body mounting portion concave portion 14a, so that the cap member 10 is mounted to the cap mounting portion 14 of the lower case 3 from the outside. By simply doing this, the opening 15 of the cap mounting portion 14 can be easily closed, whereby the entire device can be waterproofed.

  That is, when the cap member 10 is mounted on the cap mounting portion 14, the cap main body portion 12 is mounted on the main body mounting portion recess 14a, and the mounting piece 13 is mounted on the mounting mounting recess 14b. 12 is fitted into the opening 15 of the cap mounting portion 14, so that the cap member 10 can be securely and satisfactorily attached to the lower case 3, and the cap mounting portion 14 is secured by the cap member 10. The opening 15 can be reliably and satisfactorily closed, and thus the entire device can be waterproofed.

  In addition, the inclined engaging portion 21 of the rotation stopper 20 is formed as an inclined convex portion that gradually protrudes along the rotation direction of the cap member 10 when the screw member 11 is screwed, thereby tightening the screw member 11. When the attachment piece 13 of the cap member 10 is attached to the attachment attachment recess 14 b of the cap attachment portion 14, if the attachment piece 13 is displaced in the rotational direction of the screw member 11 along with the tightening of the screw member 11, the inclined engagement is performed. The pressure contact force with which the portion 21 is pressed against the inclined locking portion 22 can be gradually increased, whereby the rotation of the attachment piece portion 13 accompanying the tightening of the screw member 11 can be reliably regulated and suppressed.

  Further, the inclined locking portion 22 of the rotation stopping portion 20 is formed in an inclined concave portion that becomes gradually deeper along the rotation direction of the cap member 10 accompanying the screwing of the screw member 11, thereby tightening the screw member 11. When the attachment piece 13 of the cap member 10 is attached to the attachment attachment recess 14b of the cap attachment portion 14, if the attachment piece 13 is displaced in the rotational direction of the screw member 11 as the screw member 11 is tightened, the inclined engagement portion 21 can be gradually bitten while being brought into pressure contact with the inclined locking portion 22, and also by this, the rotation of the attachment piece portion 13 accompanying the tightening of the screw member 11 can be reliably regulated and suppressed.

  In this case, the inclined engaging portion 21 is provided radially along the periphery of the screw insertion hole 18 on the lower surface of the mounting piece portion 13 of the cap member 10, and the inclined locking portion 22 is attached to the cap mounting portion 14. When the mounting piece 13 is displaced in the rotational direction of the screw member 11 as the screw member 11 is tightened by being provided radially along the periphery of the screw insertion hole 16a at the bottom in the mounting recess 14b, Since the plurality of inclined engaging portions 21 can be respectively engaged with the plurality of inclined engaging portions 22, the rotation of the attachment piece portion 13 accompanying the tightening of the screw member 11 is more reliably regulated and suppressed. be able to.

  Further, the cap member 10 is made of an elastic material such as silicone resin, urethane resin, or elastomer, so that the opening 15 of the lower case 3 can be elastically and reliably closed. That is, since the cap member 10 can be elastically mounted on the cap mounting portion 14 of the lower case 3, the opening 15 of the cap mounting portion 14 can be easily and securely closed and sealed. The waterproofness can be ensured.

  In this case, when the cap member 10 is mounted on the cap mounting portion 14, the cap main body portion 12 can be elastically mounted on the main body mounting portion recess 14a, and the mounting piece 13 is elastically mounted on the mounting mounting recess 14b. In this state, the fitting portion 12a provided on the cap main body portion 12 can be elastically fitted to the opening 15 of the cap mounting portion 14. For this reason, the cap member 10 can be reliably and satisfactorily mounted on the cap mounting portion 14 of the lower case 3.

  In addition, since the cap member 10 has a structure in which a metal washer 19 to be inserted by the screw member 11 is embedded by insert molding, when the cap member 10 is attached to the lower case 3 by the screw member 11, The head 11 a can be pressed against the washer 19. For this reason, even if the cap member 10 is formed of an elastic material such as silicone resin, urethane resin, or elastomer, the cap member 10 can be reliably and satisfactorily attached to the lower case 3 by the screw member 11.

  That is, the washer 19 is embedded in a boundary portion between the large diameter hole portion 18 a and the small diameter hole portion 18 b in the screw insertion hole 18 provided in the attachment piece portion 13 of the cap member 10, and the large diameter hole of the screw insertion hole 18. Since the head portion 11a of the screw member 11 is inserted into the portion 18a, when the head member 11a of the screw member 11 is inserted into the large-diameter hole portion 18a of the screw insertion hole 18 and the screw member 11 is tightened, The washer 19 can be pressed by the head portion 11 a of the screw member 11, and the cap member 10 can be reliably and satisfactorily attached to the lower case 3 by this washer 19.

  In addition, since a metal nut 17 into which the screw member 11 is screwed is embedded in the bottom portion in the screw insertion hole 16a provided in the screw mounting portion 16 of the lower case 3, the lower case 3 is Even if it is formed of synthetic resin, the screw member 11 can be strongly tightened to the female screw 17a of the nut 17, so that the cap member 10 can be firmly attached to the lower case 3.

  In the above-described embodiment, the inclined engaging portion 21 is formed as an inclined convex portion that gradually protrudes along the rotation direction of the attachment piece portion 13 of the cap member 10 accompanying the screwing of the screw member 11, and the inclined locking portion. Although the case where 22 is formed in the inclined recessed part which becomes deep gradually along the rotation direction of the attachment piece part 13 of the cap member 10 accompanying screwing of the screw member 11 was described, not only this but the inclined engaging part 21 is screwed The cap member 10 is attached to the cap member 10 by screwing the screw member 11, and the cap member 10 is attached to the cap member 10 by screwing the screw member 11. The structure formed in the inclination convex part which protrudes gradually along the rotation direction of the part 13 may be sufficient.

  In the above-described embodiments, the case where the present invention is applied to a portable terminal is described. However, the present invention is not necessarily a portable terminal, and is widely applied to various electronic devices such as a cellular phone and a portable information processing device. be able to.

As mentioned above, although one Embodiment of this invention was described, this invention is not restricted to this, 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 is a case provided with an opening, a cap member that closes the opening of the case so as to be opened and closed, a screw member that attaches the cap member to the case, and a screw of the screw member A rotation stop portion for restricting the rotational displacement of the cap member accompanying the stop, and the rotation stop portion is provided in the cap member, an inclined engagement portion provided in the cap member, and the case of the cap member. It is a cap mounting structure characterized by having an inclination locking part which locks an inclination engaging part.

  According to a second aspect of the present invention, in the cap mounting structure according to the first aspect, the inclined engagement portion is an inclined convex portion that gradually protrudes along a rotation direction of the cap member accompanying screwing of the screw member. The cap mounting structure is characterized in that it is formed.

  According to a third aspect of the present invention, in the cap mounting structure according to the first or second aspect, the inclined locking portion is gradually deeper along a rotation direction of the cap member when the screw member is screwed. It is formed in the inclined recessed part which becomes the cap attachment structure characterized by the above-mentioned.

  A fourth aspect of the present invention is the cap mounting structure according to any one of the first to third aspects, wherein the cap member is formed of an elastic material.

  According to a fifth aspect of the present invention, in the cap mounting structure according to the fourth aspect, the cap member is embedded with a metal washer inserted by the screw member by insert molding. Structure.

  According to a sixth aspect of the present invention, in the cap mounting structure according to any one of the first to fifth aspects, the rotation stopping portion is arranged at a mounting position of the screw member so as to surround the mounting position of the screw member. A cap mounting structure in which a plurality of caps are provided around the periphery.

  A seventh aspect of the present invention is an electronic apparatus comprising the cap mounting structure according to any one of the first to sixth aspects.

DESCRIPTION OF SYMBOLS 1 Device case 2 Upper case 3 Lower case 10 Cap member 11 Screw member 11a Head part 11b Screw part 12 Cap main body part 12a Fitting part 13 Mounting piece part 14 Cap mounting part 15 Opening part 16 Screw mounting part 16a Screw insertion hole 17 Nut 18 Screw insertion hole 19 Washer 20 Anti-rotation part 21 Inclination engagement part 22 Inclination engagement part

Claims (7)

A case provided with an opening,
A cap member for closing and opening the opening of the case;
A screw member for attaching the cap member to the case;
A rotation stopper for restricting the rotational displacement of the cap member accompanying the screwing of the screw member;
With
The rotation stopper includes an inclined engaging portion provided on the cap member, and an inclined engaging portion provided on the case for engaging the inclined engaging portion of the cap member. Cap mounting structure characterized by   2. The cap mounting structure according to claim 1, wherein the inclined engaging portion is formed on an inclined convex portion that gradually protrudes along a rotation direction of the cap member accompanying screwing of the screw member. Cap mounting structure.   3. The cap mounting structure according to claim 1, wherein the inclined locking portion is formed in an inclined concave portion that gradually becomes deeper along a rotation direction of the cap member accompanying screwing of the screw member. Cap mounting structure characterized by   4. The cap mounting structure according to claim 1, wherein the cap member is made of an elastic material.   5. The cap mounting structure according to claim 4, wherein a metal washer inserted into the screw member is embedded in the cap member by insert molding. 6.   The cap mounting structure according to any one of claims 1 to 5, wherein a plurality of the rotation stoppers are provided around the mounting position of the screw member so as to surround the mounting position of the screw member. Characteristic cap mounting structure.   An electronic apparatus comprising the cap mounting structure according to any one of claims 1 to 6.

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