%PDF-1.4
%
292 0 obj
<>/PageMode/UseOutlines/Outlines 312 0 R/Metadata 287 0 R/Pages 282 0 R/OpenAction 293 0 R/StructTreeRoot 61 0 R/Type/Catalog/OutputIntents 288 0 R>>
endobj
312 0 obj
<>
endobj
287 0 obj
<>stream
2010-11-30T19:50:58+01:00
2010-11-04T01:11:02Z
2010-11-30T19:50:58+01:00
Jouve S.A., EPO - Publication - KB, TaggedPDF v1.27
EP-0647520-A1-19950412
uuid:f9bba210-1dd1-11b2-0a00-848e0c0a0100
uuid:d7d68aa5-1dd1-11b2-0a00-780f5f093600
application/pdf
EP-0647520-A1-19950412
To reduce the need for manual work, improve productivity and reduce the fabrication cost in the method for molding a lead screw for converting a rotational movement into a linear movement, there are provided a method and a die assembly (23) which may involve the steps of forming a plurality of holes (5) in a wall of a tube (2) in a spiral arrangement, preparing a metallic die assembly provided with a cavity (b1) defining a thread groove adapted to form the thread crest matching in position with an array of the holes, placing the tube in the cavity, and injecting synthetic resin material into the cavity so that the synthetic resin material may flow in two separate flows, one flowing inside the core tube, and the other flowing along the outer surface of the core tube. The thread crest is connected to the synthetic resin material filled in the core tube, and can be securely attached to the core tube. Optionally, an annular rotor may be fitted onto the base end portion of the lead screw. The synthetic resin material is first filled into the annular gap defined around the annular rotor before it is filled into the interior of the annular rotor so that the rotor may be prevented from being damaged by the tensile stress produced by internal pressure acting on the annular rotor.
To reduce the need for manual work, improve productivity and reduce the fabrication cost in the method for molding a lead screw for converting a rotational movement into a linear movement, there are provided a method and a die assembly (23) which may involve the steps of forming a plurality of holes (5) in a wall of a tube (2) in a spiral arrangement, preparing a metallic die assembly provided with a cavity (b1) defining a thread groove adapted to form the thread crest matching in position with an array of the holes, placing the tube in the cavity, and injecting synthetic resin material into the cavity so that the synthetic resin material may flow in two separate flows, one flowing inside the core tube, and the other flowing along the outer surface of the core tube. The thread crest is connected to the synthetic resin material filled in the core tube, and can be securely attached to the core tube. Optionally, an annular rotor may be fitted onto the base end portion of the lead screw. The synthetic resin material is first filled into the annular gap defined around the annular rotor before it is filled into the interior of the annular rotor so that the rotor may be prevented from being damaged by the tensile stress produced by internal pressure acting on the annular rotor.
en
European Patent Office
EP0647520
EP 0647520
B29D 01/00
B29C 47/00
B29C 45/14
B29C 70/70
Method for fabricating a lead screw made of synthetic resin material and having a core tube therein
Method for fabricating a lead screw made of synthetic resin material and having a core tube therein - European Patent Office - EP 0647520 A1
Method for fabricating a lead screw made of synthetic resin material and having a core tube therein - European Patent Office - EP 0647520 A1
Adobe PDF Library 8.0
"EP0647520"; "EP 0647520"; "B29D 01/00"; "B29C 47/00"; "B29C 45/14"; "B29C 70/70"; "Method for fabricating a lead screw made of synthetic resin material and having a core tube therein"
1.4
1
B
21
EP
0647520
A1
1995-04-12
94630051
1994-09-14
JP
26534693
1993-09-17
B29D 01/00
B29C 47/00
B29C 45/14
B29C 70/70
KABUSHIKI KAISHA MOLD GIJUTSU KENKYUSHO
MINEBEA CO., LTD.
Ishii, Kiyoshi
Ishikawa, Mizuho
Weydert, Robert et al
Method for fabricating a lead screw made of synthetic resin material and having a core tube therein
Verfahren zur Herstellung eines Gewindespindels aus synthetischen Kunststoff mit einem rohrartigen Kern
Method for fabricating a lead screw made of synthetic resin material and having a core tube therein
Procédé pour la fabrication d'un vis-écrou en résine synthétique et avec un noyau en forme de tube
To reduce the need for manual work, improve productivity and reduce the fabrication cost in the method for molding a lead screw for converting a rotational movement into a linear movement, there are provided a method and a die assembly (23) which may involve the steps of forming a plurality of holes (5) in a wall of a tube (2) in a spiral arrangement, preparing a metallic die assembly provided with a cavity (b1) defining a thread groove adapted to form the thread crest matching in position with an array of the holes, placing the tube in the cavity, and injecting synthetic resin material into the cavity so that the synthetic resin material may flow in two separate flows, one flowing inside the core tube, and the other flowing along the outer surface of the core tube. The thread crest is connected to the synthetic resin material filled in the core tube, and can be securely attached to the core tube. Optionally, an annular rotor may be fitted onto the base end portion of the lead screw. The synthetic resin material is first filled into the annular gap defined around the annular rotor before it is filled into the interior of the annular rotor so that the rotor may be prevented from being damaged by the tensile stress produced by internal pressure acting on the annular rotor.
bibliography
1
1
description
2
8
claims
9
3
drawings
12
9
search-report
21
1
abstract
1
1
http://www.epo.org/patent-bibliographic-data/1.0/
patent
Patent Bibliographic Data Schema V. 1.0
external
Publication
DocId
Contains country code, publication number/date, correction code, and kind of the published
patent document
external
InternationalPublication
DocId
Contains country code, publication number/date, and kind of the international published patent
document
external
Application
DocId
Contains number and filing date of the patent document
external
InternationalApplication
DocId
Contains number and filing date of the international patent document
external
Priority
Bag DocId
Contains list of priorities (country code, publication number and date) of the patent
document
external
Classification
Bag Text
Contains list of Patent Classification symbols of the patent document - XML ST36 element:
classification-ipcr/text, or B511, B512 - See WIPO ST8 for content structure description
external
Applicant
Bag Text
Contains list of applicants of the patent document
external
Inventor
Bag Text
Contains list of inventors of the patent document
external
Proprietor
Bag Text
Contains list of proprietors of the patent document
external
Representative
Bag Text
Contains list of representatives of the patent document
external
Title
Lang Alt
Contains title or an alternative list of titles of the patent document - XML ST36 element: B541
(title language) and B542 - default value depends on the value of the attribute @lang in the element ep-patentdocument
external
Abstract
Seq Text
Contains abstract or an ordered list of abstracts of the patent document - XML ST36 element:
abstract/@lang and abstract/p - first abstract in the ordered list depends on the value of the attribute @lang in the element ep-patent-document
external
TotalNumberOfPages
Real
Total number of pages
external
DocumentStructure
Seq Bookmark
Contains an ordered list of bookmark-related data (name, number of the first page, number of
pages)
DocId
http://www.epo.org/patent-bibliographic-data/1.0/
patent
Provides a structure for document identification related data
CountryCode
Text
Country Code - XML ST36 element:
- B190 for a publication or B871/ctry for an international publication
- B330/ctry for a priority
Number
Text
Publication or Application or Priority Number - XML ST36 element:
- B110 for a publication or B871/dnum/pnum for an international publication
- B210 for an application or B861/dnum/anum for an international application
- B310 for a priority
KindCode
Text
Kind Code - XML ST36 element: B130 for a publication or B871/kind for an international publication
CorrectionCode
Text
Correction Code - XML ST36 element: B151+B132EP - See WIPO ST50 for correction code definition
Date
Date
Publication or Application or Priority Date - XML ST36 element:
- B140/date for a publication or B871/date for an international publication
- B220/date for an application or B861/date for an international application
- B320/date for a priority
Bookmark
http://www.epo.org/patent-bibliographic-data/1.0/
patent
Provides a structure for describing bookmarks of a patent document
DocumentSection
Text
Possible values are: bibliography, abstract, description, claims, drawings, search-report, amendment
StartPage
Real
Number of the first page of a given DocumentSection
NumberOfPages
Real
Number of pages of a given DocumentSection
http://ns.adobe.com/xap/1.0/mm/
xapMM
xapMM Schema
internal
InstanceID
URI
InstanceID Property
endstream
endobj
282 0 obj
<>
endobj
293 0 obj
<>
endobj
61 0 obj
<>
endobj
288 0 obj
[<>]
endobj
289 0 obj
<>stream
HyTSwoɞc
[5laQIBHADED2mtFOE.c}088GNg9w߽ '0 ֠Jb
2y.-;!KZ ^i"L0-
@8(r;q7Ly&Qq4j|9
V)gB0iW8#8wթ8_٥ʨQQj@&A)/g>'K t;\
ӥ$պFZUn(4T%)뫔0C&Zi8bxEB;Pӓ̹Aom?W=
x- [ 0}y)7ta>jT7@tܛ`q2ʀ&6ZLĄ?_yxg)˔zçLU*uSkSeO4?c. R
߁-25 S>ӣVd`rn~Y&+`;A4 A9 =-tl`;~p Gp| [`L`< "AYA+Cb(R, *T2B-
ꇆnQt}MA0alSx k&^>0|>_',G!"F$H:R!zFQd?r9\A&GrQhE]a4zBgE#H *B=0HIpp0MxJ$D1D, VĭKĻYdE"EI2EBGt4MzNr!YK ?%_(0J:EAiQ(()ӔWT6U@P+!~mDeԴ!hӦh/']B/ҏӿ?a0nhF!X8܌kc&5S6lIa2cKMA!E#ƒdV(kel
}}Cq9
N')].uJr
wG xR^[oƜchg`>b$*~ :Eb~,m,-ݖ,Y¬*6X[ݱF=3뭷Y~dó tizf6~`{v.Ng#{}}jc1X6fm;'_9 r:8q:˜O:ϸ8uJqnv=MmR 4
n3ܣkGݯz=[==<=GTB(/S,]6*-W:#7*e^YDY}UjAyT`#D="b{ų+ʯ:!kJ4Gmt}uC%K7YVfFY.=b?SƕƩȺy
چk5%4m7lqlioZlG+Zzmzy]?uuw|"űNwW&e֥ﺱ*|j5kyݭǯg^ykEklD_p߶7Dmo꿻1ml{Mś
nLl<9O [$h՛BdҞ@iءG&vVǥ8nRĩ7u\ЭD- u`ֲK³8%yhYѹJº;.!
zpg_XQKFAǿ=ȼ:ɹ8ʷ6˶5̵5͵6ζ7ϸ9к<Ѿ?DINU\dlvۀ܊ݖޢ)߯6DScs
2F[p(@Xr4Pm8Ww)Km
endstream
endobj
62 0 obj
<>
endobj
63 0 obj
<>
endobj
64 0 obj
<>
endobj
65 0 obj
<>
endobj
66 0 obj
<>
endobj
67 0 obj
<>
endobj
68 0 obj
<>
endobj
69 0 obj
<>/K 3/P 109 0 R/S/P/Pg 28 0 R/Type/StructElem>>
endobj
70 0 obj
<>/K 4/P 109 0 R/S/P/Pg 28 0 R/Type/StructElem>>
endobj
71 0 obj
<>/K 6/P 91 0 R/S/P/Pg 294 0 R/Type/StructElem>>
endobj
72 0 obj
<>/K 5/P 109 0 R/S/P/Pg 28 0 R/Type/StructElem>>
endobj
73 0 obj
<>/K 6/P 109 0 R/S/P/Pg 28 0 R/Type/StructElem>>
endobj
74 0 obj
<>/K 7/P 109 0 R/S/P/Pg 28 0 R/Type/StructElem>>
endobj
75 0 obj
<>/K 0/P 110 0 R/S/P/Pg 31 0 R/Type/StructElem>>
endobj
76 0 obj
<>/K 1/P 110 0 R/S/P/Pg 31 0 R/Type/StructElem>>
endobj
77 0 obj
<>/K 2/P 110 0 R/S/P/Pg 31 0 R/Type/StructElem>>
endobj
78 0 obj
<>/K 3/P 110 0 R/S/P/Pg 31 0 R/Type/StructElem>>
endobj
79 0 obj
<>/P 110 0 R/S/P/Type/StructElem>>
endobj
80 0 obj
<>/K 4/P 110 0 R/S/P/Pg 31 0 R/Type/StructElem>>
endobj
81 0 obj
<>/K 7/P 91 0 R/S/P/Pg 294 0 R/Type/StructElem>>
endobj
82 0 obj
<>/K 5/P 110 0 R/S/P/Pg 31 0 R/Type/StructElem>>
endobj
83 0 obj
<>/P 110 0 R/S/P/Type/StructElem>>
endobj
84 0 obj
<>/K 6/P 110 0 R/S/P/Pg 31 0 R/Type/StructElem>>
endobj
85 0 obj
<>/K 7/P 110 0 R/S/P/Pg 31 0 R/Type/StructElem>>
endobj
86 0 obj
<>/K 0/P 111 0 R/S/P/Pg 34 0 R/Type/StructElem>>
endobj
87 0 obj
<>/K 1/P 111 0 R/S/P/Pg 34 0 R/Type/StructElem>>
endobj
88 0 obj
<>/P 111 0 R/S/P/Type/StructElem>>
endobj
89 0 obj
<>/K 2/P 111 0 R/S/P/Pg 34 0 R/Type/StructElem>>
endobj
90 0 obj
<>/P 111 0 R/S/P/Type/StructElem>>
endobj
91 0 obj
<>
endobj
92 0 obj
<>
endobj
93 0 obj
<>
endobj
94 0 obj
<>
endobj
95 0 obj
<>
endobj
96 0 obj
<>
endobj
97 0 obj
<>
endobj
98 0 obj
<>
endobj
99 0 obj
<>
endobj
100 0 obj
<>
endobj
101 0 obj
<>
endobj
102 0 obj
<>
endobj
103 0 obj
<>
endobj
104 0 obj
<>
endobj
105 0 obj
<>
endobj
106 0 obj
<>
endobj
107 0 obj
<>
endobj
108 0 obj
<>
endobj
109 0 obj
<>
endobj
110 0 obj
<>
endobj
111 0 obj
<>
endobj
112 0 obj
<>/K 3/P 111 0 R/S/P/Pg 34 0 R/Type/StructElem>>
endobj
34 0 obj
<>/Font<>/ProcSet[/PDF/Text/ImageB]>>/Type/Page>>
endobj
285 0 obj
<>
endobj
336 0 obj
<>stream
BT
/Span <>BDC
/C2_0 10 Tf
-1.04332 Tc 3 Tr 270 787.19998 Td
<0028003300030003>Tj
-1.59 Tc 14.39999 0 Td
<001300030003>Tj
-0.77499 Tc 7.68 0 Td
[<00190017001A00030003>-139.5 <00180015001300030003>]TJ
-0.83 Tc 34.80001 0 Td
<002400140003>Tj
EMC
/Span <>BDC
4.82799 Tc -94.55999 -136.31999 Td
<0029004C004A001100030003>Tj
3.39999 Tc 51.6 1.43999 Td
<00170003>Tj
EMC
/Span <>BDC
4.82799 Tc -38.40001 -293.51999 Td
<0029004C004A001100030003>Tj
3.16 Tc 51.6 0.95999 Td
<00180003>Tj
EMC
/Span <>BDC
-0.43999 Tc 2.39999 -297.84 Td
<001400160003>Tj
EMC
ET
q
622.0800171 0 0 841.9199829 0 0 cm
/Im0 Do
Q
endstream
endobj
295 0 obj
<>
endobj
296 0 obj
[310 0 R]
endobj
297 0 obj
<>stream
H\]k@|l/J9X!`Xc~c+(<$vѕ߇sϣ;]3}{omW?Y}QN˘Ox.V+W.^ݯޕOA_)r>kx}.S>7<\kV/k]DZc0̷tb9)ɓH$GR$mHKҖHz"Ug҆B/HO$Oz&BkOkZhIIK "_ '<> H!`PbC0(A1!`PbC)3DH2#g|O>g|O>g|O"`aPZGZ+#֑JHku:ZiiVZGZ+#D"c*EDTS1| K_g>×%|/3| KQB熞KUtYҬ|C3+TJ]6uq[;$]>7p>uoBt.
0 e
endstream
endobj
310 0 obj
<>
endobj
308 0 obj
<>
endobj
309 0 obj
<>
endobj
306 0 obj
<>stream
Hwpfc!=X%XB ġIR ӌA dcm0Ʀ)$E[i4$3ILfwϹ{=w<҈8%Sx]ʹpHznNйvCj#**}E$\ _Η;l08"g7"Q v$T#n4N{M"#^iѕ jM:b}DTZl|#V.GbTVr
ixsPD\$5#" Cκ|iyG&\iW|ov.3z 0 HPh,
c
6`{ppWqwp/
NazC
TT(y.\\T^ȋy9[?χg>g_|C>!mGnzAa4,*:yo=va(~ Ưe\-C<GUR l`C~GɁ\#cxMN?!>',|[GBڣ=D"8c$>RėX# Ii9d&r*T~*VN5QU_d6q-Ǎx<'$8Sx.^Kxj^x[;>>|Mr?'_]M@kw'tGoED<`8>XLdLt,|9b!>b,
e6؉ pqgp^
d6rVUHS%*ʫ?o%*RoꪆjjRWMU3BT*R(%۳Z#^ȓe~gye/+^/sv|B04GKBcH$L4@2R0s aѿ'%
2R>T5T-UGՓj,9TLB3?I3It*Rm9Bw%
GhIm#%ͼVUǤK=MS%Fjh35Z"Į
KܪHu;3;;ێ0ҎC;T;jwm-qkBT`M̷HVEO!
[%ei!ez/}n-ۈ>Eq[Z՟
ou$s]_J#+4}5bYQ"K&[AFǍ>m[i_^eV4L<"hUh6VkGOߧ/̅
wY GbFۘc7K6qC2&J|C+XuUwTDf o: YǬo!fҌ7ǚ̕jeNGccSw*g 3YER"KY%VyϪjY
+J)kZmmZۭAuֺ< /|m&tҴa+t0I:ɼЌF'b%cqȖ5{9tUY,e3M(toӉ:KNH)Щϧg1tR4+sFЉl:Z\\B'uvz*tt<%yJ\s^S%$fkõ`w˭[=i
X@Ac,qQ.$t>Κ(Ǽݳ_\5\r1-Ëgdz9(+9sUfjFjƒD+~yGUula|={v ,`{1j{o5%1*5QQF6ElX{+XPيy/ef8s~ߗlgn##oKKuav617)tL 8tihjjjdjhr19L)qrVلل,YbZ
T!E-e9*R
-
g XҨa 7u5}o^~=t1Xc0/`!܄0!J ٺa><0?3