IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0376412
(2007-07-13)
|
등록번호 |
US-8524349
(2013-09-03)
|
우선권정보 |
FR-06 07213 (2006-08-08) |
국제출원번호 |
PCT/FR2007/001208
(2007-07-13)
|
§371/§102 date |
20100804
(20100804)
|
국제공개번호 |
WO2008/017747
(2008-02-14)
|
발명자
/ 주소 |
- Protais, Pierrick
- Boukobza, Michel
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
1 |
초록
▼
Bottom of hollow ware obtained by the blow molding or stretch-blow molding of a thermoplastic preform, this bottom having a transverse bearing surface and, on either side of this transverse bearing surface, a transverse external edge (7) and a concave internal wall with a transverse central portion
Bottom of hollow ware obtained by the blow molding or stretch-blow molding of a thermoplastic preform, this bottom having a transverse bearing surface and, on either side of this transverse bearing surface, a transverse external edge (7) and a concave internal wall with a transverse central portion (11) containing a disc (12) of material having a low crystallinity, this bottom including reinforcing ribs (1) having an outer edge (13) coming close to the transverse external edge (7) but without reaching this transverse external edge (7), these reinforcing ribs (1) hang an inner edge (14) coming close to the transverse central portion (11), but without reaching this transverse central portion (11), the transverse bearing surface being formed from segments (6a, 6b, 6c, 6d, 6e) interrupted by the reinforcing ribs (1), this hollow ware bottom (4) further including notches (2), the distal end portion (24) of which comes close to but does not reach the external edge (7) of the bottom, the proximal end portion (25) of the notches (2) being tangential with the transverse bearing surface but not opening into this transverse bearing surface.
대표청구항
▼
1. A bottom of a hollow body obtained by blowing or stretch-blowing of a preform of thermoplastic material, said bottom comprising a transverse support surface, and on either side of said transverse support surface: a transverse outer edge (7);a concave inner wall with a transverse central part (11)
1. A bottom of a hollow body obtained by blowing or stretch-blowing of a preform of thermoplastic material, said bottom comprising a transverse support surface, and on either side of said transverse support surface: a transverse outer edge (7);a concave inner wall with a transverse central part (11) containing a disc (12) of material of low crystallinity, said disc corresponding to the injection point of the preform; said bottom comprising reinforcing ribs (1) having an outer edge (13) in proximity to the transverse outer edge (7) but without reaching said transverse outer edge (7), said reinforcing ribs (1) having an inner edge (14) in proximity to the transverse central part (11), but without reaching said transverse central part (11), wherein the transverse support surface is formed from annular sectors (6a, 6b, 6c, 6d, 6e) interrupted by the reinforcing ribs (1), said bottom of the hollow body (4) further comprising notches (2) the distal end portion (24) of which is adjacent to but does not reach the outer edge (7) of the bottom, the proximal end portion (25) of the notches (2) being tangent to the transverse support annular sectors but not opening into said transverse annular sectors. 2. The bottom of the hollow body as claimed in claim 1, characterized in that the concave inner wall is provided with reinforcing grooves (3) the distal end portion (30) of which is in proximity to a segment (6a, 6b, 6c, 6d, 6e) of the transverse support surface (6) but without reaching said segment (6a, 6b, 6c, 6d, 6e), the proximal end portion (31) of said reinforcing grooves (3) being in proximity to the transverse central part (11) but without reaching said transverse central part (11). 3. The bottom of the hollow body as claimed in claim 2, characterized in that the reinforcing grooves (3) comprise a bottom wall (26) and two lateral flanges (27, 28) and have a plane of symmetry (29). 4. The bottom of the hollow body as claimed in claim 3, characterized in that the notches (2) comprise a bottom wall (20) and two lateral flanges (21, 22) and have a plane of symmetry (23). 5. The bottom of the hollow body as claimed in claim 4, characterized in that the bottom wall (26) of a reinforcing groove (3) is substantially placed in alignment with the bottom wall (20) of a notch (2), the proximal end portion (31) of each reinforcing groove (3) extending between two reinforcing ribs (1). 6. The bottom of the hollow body as claimed in claim 1, characterized in that the width of the notches (2) is between about 2 and 20 millimeters. 7. The bottom of the hollow body as claimed in claim 1, characterized in that the depth of said notches (2) is between about 1 and 5 millimeters. 8. The bottom of the hollow body as claimed in claim 1, characterized in that the disc (12) of material of low crystallinity projects in the outer face into the transverse central part (11). 9. The bottom of the hollow body as claimed in claim 1, characterized in that the outer edge (7) is placed at a height (h7) with respect to the transverse support surface, the transverse central part (11) being placed at a height (h11) with respect to the transverse support surface. 10. The bottom of the hollow body as claimed in claim 1, characterized in that with the exception of the reinforcing ribs (1) and reinforcing notches (2) and reinforcing grooves (3), the bottom (4) is in the form of a body of revolution around an axis (5) substantially perpendicular to its transverse support surface. 11. The bottom of the hollow body as claimed in claim 10, characterized in that, in vertical radial cross-section, between the outer edge (7) and the transverse support surface, it has a profile that is: adjacent to the outer edge (7), substantially tangent to a direction perpendicular to the transverse support surface,adjacent to the transverse support surface, substantially tangent to said transverse support surface. 12. The bottom of the hollow body as claimed in claim 11, characterized in that it has, in vertical radial cross-section, between the outer edge (7) and the transverse support surface, a substantially parabolic profile. 13. A hollow body of thermoplastic material, obtained by blowing or stretch-blowing of a preform, said hollow body comprising a side wall and a bottom joined to said side wall, said bottom being as presented in claim 1. 14. The hollow body of thermoplastic material as claimed in claim 13, wherein the thermoplastic material is polyester. 15. The hollow body of thermoplastic material as claimed in claim 13, wherein the thermoplastic material is PET. 16. A bottom of a hollow body obtained by blowing or stretch-blowing of a preform of thermoplastic material, the bottom comprising a concave inner wall with a transverse central part having a disc of material of low crystallinity, the disc corresponding to the injection point of the preform;a transverse outer edge;reinforcing ribs having an outer edge in proximity to the transverse outer edge without reaching the transverse outer edge, the reinforcing ribs have an inner edge in proximity to the transverse central part without reaching the transverse central part;transverse support segments defining a substantially flat annular ring interrupted by the reinforcing ribs, the support segments provide a flat surface configured to support the hollow body;notches, the distal end portion of each adjacent to but not reaching the outer edge of the bottom, the proximal end portion of the notches being tangent to the transverse support surface but not opening into the transverse support surface. 17. The Bottom of hollow body according to claim 16, wherein the concave inner wall is provided with reinforcing grooves, the distal end portion of which is in proximity to a segment of the transverse support surface but without reaching said segment, the proximal end portion of said reinforcing grooves being in proximity to the transverse central part but without reaching said transverse central part.
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