Mold for creating negative draft surfaces in molded items and method of molding
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-033/42
B29C-033/44
B29L-031/00
B29C-033/40
출원번호
US-0436467
(2012-03-30)
등록번호
US-9321191
(2016-04-26)
발명자
/ 주소
Doss, Raymond
출원인 / 주소
Doss, Raymond
대리인 / 주소
Gayed, Jeremy N.
인용정보
피인용 횟수 :
5인용 특허 :
9
초록▼
A one-piece mold can be used to form molded items that incorporate features or encroachments with negative draft angles, and such molded items can be removed from the mold in a single piece by lifting, tilting, or pulling, or a combination thereof, without breaking the mold or the item to be molded.
A one-piece mold can be used to form molded items that incorporate features or encroachments with negative draft angles, and such molded items can be removed from the mold in a single piece by lifting, tilting, or pulling, or a combination thereof, without breaking the mold or the item to be molded. The mold and method of molding are suited to a bathtub or shower unit. The mold and method of molding permit the removal of molded items with negative draft angles by coordinating the angle of the sump front wall and sump back wall with the angles of other encroachments in the molded item within specified ranges that permit one-piece removal of the item to be molded from the mold.
대표청구항▼
1. A one-piece mold for a bathtub comprising a base, a rear wall, and at least one side wall, said mold forming a bathtub comprising a sump, walls extending beyond said sump and one or more additional encroachments, wherein said sump comprises a sump front wall and a sump back wall in which said mol
1. A one-piece mold for a bathtub comprising a base, a rear wall, and at least one side wall, said mold forming a bathtub comprising a sump, walls extending beyond said sump and one or more additional encroachments, wherein said sump comprises a sump front wall and a sump back wall in which said mold forms said sump front wall to reflect a negative draft angle of approximately 10 degrees and forms said sump back wall to reflect a negative draft angle of a magnitude not greater than magnitude of the draft angle of said sump front wall, said additional encroachments comprise at least one of one or more shelves and one or more seats, and at least one of said additional encroachments reflects a draft angle that is negative with respect to a direction of pull parallel to the plane defined by said rear wall, such that said bathtub can be removed from said mold through one or more of (a) pulling;(b) tilting; or(c) lifting without breaking said mold or said bathtub formed by said mold. 2. The mold of claim 1, in which portions of the mold form said one or more additional encroachments in a sump zone of said bathtub to reflect a negative draft angle of a magnitude not exceeding 2 degrees less than the magnitude of angle of said sump front wall. 3. The mold of claim 1, in which portions of the mold form said one or more additional encroachments in a middle zone of said bathtub to reflect a negative draft angle not exceeding approximately 40 degrees. 4. The mold of claim 1, in which portions of the mold form said one or more additional encroachments in an upper zone of said bathtub to reflect a negative draft angle not exceeding approximately 45 degrees. 5. A one-piece mold for a shower comprising a base, a rear wall, and at least one side wall, said mold forming a shower comprising a sump, walls extending beyond said sump, and one or more additional encroachments, wherein said sump comprises a sump from wall and a sump back wall in which said mold forms said sump front wall to reflect a negative draft angle of approximately 30 degrees and forms said sump back wall to reflect a negative draft angle of a magnitude not greater than magnitude of the draft angle of said sump front wall, said additional encroachments comprise at least one of one or more shelves and one or more seats, and at least one of said additional encroachments reflects a draft angle that is negative with respect to a direction of pull parallel to the plane defined by said rear wall, such that said shower can be removed from said mold through one or more of (a) pulling;(b) tilting; or(c) lifting without breaking said mold or said shower formed by said mold. 6. The mold of claim 5, in which portions of mold form said one or more additional encroachments in a sump zone of said shower to reflect it negative draft angle of a magnitude not exceeding 5 degrees less than the magnitude of angle of said sump front wall. 7. The mold of claim 5, in which portions of the mold form said one or more additional encroachments in a middle zone of said shower to reflect as negative draft angle not exceeding approximately 40 degrees. 8. The mold of claim 5, in which portions of the mold form said one or more additional encroachments in an upper zone of said shower to reflect a negative draft angle not exceeding approximately 45 degrees.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (9)
Kuether Christian L. (1516 Oakdale Houston TX 77004) Kuether Edith L. (3708 Stewart Dr. Chevy Chase MD 20015), Bath chair.
Ahmes, Bruce; Ahmes, Ryan; Piccininni, Kenneth, Bathtub fitting standard external space while affording safe egress and larger floor area with enclosed volume.
Ahmes, Bruce; Ahmes, Ryan; Piccininni, Kenneth, Bathtub fitting standard external space while affording safe egress and larger floor area with enclosed volume.
Ahmes, Bruce; Ahmes, Ryan; Piccininni, Kenneth, Bathtub fitting standard external space while affording safe egress and larger floor area with enclosed volume.
Ahmes, Bruce; Ahmes, Ryan; Piccininni, Kenneth, Bathtub fitting standard external space while affording safe egress and larger floor area with enclosed volume.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.