IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0086035
(2006-11-15)
|
등록번호 |
US-8178023
(2012-05-15)
|
우선권정보 |
JP-2005-354954 (2005-12-08) |
국제출원번호 |
PCT/JP2006/322751
(2006-11-15)
|
§371/§102 date |
20080603
(20080603)
|
국제공개번호 |
WO2007/066477
(2007-06-14)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
Hamre, Schumann, Mueller & Larson, P.C.
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
2 |
초록
▼
A ventilation filter part 19 including a support body 27 and a ventilation filter 25 fixed to the support body 27 is disposed in a concave portion 44c in a stationary die 44. A movable die 40 is brought into close proximity to the stationary die 44 and these dies are clamped together. Resin is injec
A ventilation filter part 19 including a support body 27 and a ventilation filter 25 fixed to the support body 27 is disposed in a concave portion 44c in a stationary die 44. A movable die 40 is brought into close proximity to the stationary die 44 and these dies are clamped together. Resin is injected into a cavity CV defined therebetween as a result of the clamping to make the injected resin and the ventilation filter part 19 into one piece. A housing upper portion 13 (housing part) formed of the ventilation filter part 19 and the injected resin is thus molded.
대표청구항
▼
1. A method for manufacture of a housing part provided with a ventilation filter, comprising: a step (A) of disposing a ventilation filter part including a support body and ventilation filter fixed to the support body in a forming die at a predetermined position and clamping the forming die; anda st
1. A method for manufacture of a housing part provided with a ventilation filter, comprising: a step (A) of disposing a ventilation filter part including a support body and ventilation filter fixed to the support body in a forming die at a predetermined position and clamping the forming die; anda step (B) of injecting resin into a cavity defined within the forming die as a result of clamping to make the resin and the ventilation filter part into one piece and thereby molding a housing part formed of the ventilation filter part and the resin,wherein;the ventilation filter is in a form of a membrane and the support body is in a form of a frame to which a peripheral portion of the ventilation filter is fixed, a bottom face of the support body and an inner surface of the resin facing an interior of the housing part are almost flush with each other, and the forming die includes a concave portion in which the ventilation filter part is fit for positioning;in the step (A), the ventilation filter part is fit in the concave portion, the forming die is clamped in such a manner that the forming die comes into close contact with a top face, the bottom face and a part of a side face of the support body so as to prevent the resin from flowing over a ventilation region of the ventilation filter; andin the step (B), the support body being made integral with the resin only at a part of the side face of the support body that protrudes out from the concave portion and faces the cavity, the side face being defined between the top and bottom faces of the support body and being substantially linear when viewed in a vertical cross section of the support body. 2. The method for manufacture of a housing part provided with a ventilation filter according to claim 1, wherein: the support body is in a form of a frame that fixes the ventilation filter by sandwiching the peripheral portion thereof from above and below; andin the step (A), the forming die is clamped in such a manner that the forming die comes into close contact with the top and bottom faces of the support body so as to prevent the resin from flowing into clearances defined above and below the ventilation filter. 3. The method for manufacture of a housing part provided with a ventilation filter according to claim 1, wherein the support body is made of resin and a type of the resin used for the support body is the same as the type of resin used for the housing part. 4. The method for manufacture of a housing part provided with a ventilation filter according to claim 1, further comprising: a step (C) of discriminating between conforming articles and inferior articles by conducting an inspection on plural ventilation filter parts manufactured in advance,wherein the conforming articles discriminated in the step (C) alone are used as the ventilation filter part in the step (A) and (B). 5. The method for manufacture of a housing part provided with a ventilation filter according to claim 4, wherein the inspection conducted in the step (C) is a water resistance inspection. 6. The method for manufacture of a housing part provided with a ventilation filter according to claim 4, wherein the inspection conducted in the step (C) is a permeability inspection. 7. The method for manufacture of a housing part provided with a ventilation filter according to claim 1, wherein the ventilation filter includes a porous membrane made of polytetrafluoroethylene. 8. The method for manufacture of a housing part provided with a ventilation filter according to claim 1, wherein: the ventilation filter is formed in such a manner that in an in-plane direction perpendicular to a thickness direction of the ventilation filter, at least part of a peripheral portion of the ventilation filter protrudes more to an outer side than an outer periphery of the support body, andin a state where the forming die is clamped, the peripheral portion of the ventilation filter protruding to the outer side more than the outer periphery of the support body is exposed within the cavity while the resin and the ventilation filter part are made into one piece in such a manner that the resin injected into the cavity wraps around the peripheral portion of the ventilation filter. 9. A method for manufacture of a housing provided with a ventilation filter, comprising: manufacturing a housing part provided with a ventilation filter according to the method set forth in claim 1; andobtaining a housing provided with a ventilation filter by assembling the housing part provided with a ventilation filter and another housing part. 10. The method for manufacture of a housing part provided with a ventilation filter of claim 1, wherein: the side face of the support body is inclined with respect to a thickness direction of the ventilation filter in a cross section parallel to the thickness direction of the ventilation filter. 11. A method for manufacture of a housing part provided with a ventilation filter, comprising: a step (A) of disposing a ventilation filter part including a support body and a ventilation filter fixed to the support body in a forming die at a predetermined position and clamping the forming die; anda step (B) of injecting resin into a cavity defined within the forming die as a result of clamping to make the resin and the ventilation filter part into one piece and thereby molding a housing part formed of the ventilation filter part and the resin,wherein;the ventilation filter is in a form of a membrane and the support body is in a form of a frame to which a peripheral portion of the ventilation filter is fixed, a bottom face of the support body and an inner surface of the resin facing an interior of the housing part are almost flush with each other, and the forming die is provided with a concave portion in which the ventilation filter part is fit for positioning;in the step (A), the ventilation filter part is fit in the concave portion, the forming die is clamped in such a manner that the forming die comes into close contact with a top face, the bottom face and a part of a side face of the support body so as to prevent the resin from flowing over a ventilation region of the ventilation filter; andin the step (B), the support body being made integral with the resin only at a part of the side face of the support body that protrudes out from the concave portion and faces the cavity, the side face being defined between the top and bottom faces of the support body and being substantially parallel to a thickness direction of the ventilation filter. 12. A method for manufacture of a housing part provided with a ventilation filter, comprising: a step (A) of disposing a ventilation filter part including a support body and a ventilation filter fixed to the support body in a forming die at a predetermined position and clamping the forming die; anda step (B) of injecting resin into a cavity defined within the forming die as a result of clamping to make the resin and the ventilation filter part into one piece and thereby molding a housing part formed of the ventilation filter part and the resin,wherein;the ventilation filter is in a form of a membrane and the support body is in a form of a frame to which a peripheral portion of the ventilation filter is fixed, a bottom face of the support body and an inner surface of the resin facing an interior of the housing part are almost flush with each other, and the forming die is provided with a concave portion in which the ventilation filter part is fit for positioning;in the step (A), the ventilation filter part is fit in the concave portion, the forming die is clamped in such a manner that the forming die comes into close contact with a top face, the bottom face and a part of a side face of the support body so as to prevent the resin from flowing over a ventilation region of the ventilation filter; andin the step (B), the support body being made integral with the resin only at a part of the side face of the support body that protrudes out from the concave portion and faces the cavity, the side face being defined between the top and bottom faces of the support body and being inclined with respect to a thickness direction of the ventilation filter and an inner peripheral surface of the support body is substantially parallel to the thickness direction of the ventilation filter.
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