US3541646A - Mold for the manufacture of lined shoes by casting - Google Patents

Mold for the manufacture of lined shoes by casting Download PDF

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Publication number
US3541646A
US3541646A US744164A US3541646DA US3541646A US 3541646 A US3541646 A US 3541646A US 744164 A US744164 A US 744164A US 3541646D A US3541646D A US 3541646DA US 3541646 A US3541646 A US 3541646A
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Prior art keywords
mold
shoe
flange
lining
shell
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US744164A
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Antoine Joseph Georges Baudou
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00Producing footwear
    • B29D35/0009Producing footwear by injection moulding; Apparatus therefor
    • B29D35/0018Moulds
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00Footwear for sporting purposes
    • A43B5/04Ski or like boots
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00Footwear for sporting purposes
    • A43B5/04Ski or like boots
    • A43B5/0405Linings, paddings or insertions; Inner boots

Definitions

  • the present invention relates to a mold for casting shoes, particularly ski boots, of the type including a lining -and an opening in the upper for the introduction of the foot, and flap portions at said opening which fold back one upon the other in order to close the boot, with the aid of buckles, laces or any other suitable means.
  • the invention consists essentially of a mold in which a lining is to be directly fastened to the body of the boot, at the time of the casting, said lining having in its front part, a cut-out corresponding to the opening of the upper, and, during the operation of casting, in keeping in place in the mold, the edge portions of such cut-out by means of a rigid flange of suitable shape carried by a half-shell of the mold and inserted between the above-mentioned edge portions.
  • the invention is also directed to the construction of the mold, as well as to the ski boots or other shoes which are lined with the aid of this mold.
  • FIG. 1 is a sectional view through a mold according to the invention, in open position, at the level of the arch of the foot,
  • FIG. 2 is a sectional view of the mold of FIG. 1 in closed position
  • FIG. 3 is a perspective view of the lining.
  • FIGS. 1 and 2 there is shown a mold in which a shoe can be cast, such shoe being of the type having an opening in which the foot is inserted, and flap portions bounding the opening, one of which is overlapped on the other and secured thereto to close the shoe.
  • the mold comprises an upper half shell 1 with a concave hollow contour corresponding to the shape of one half of the shoe upper, a lower half shell 2 similar to half-shell 1 and to be described in greater detail hereinafter, and a form 3 which has the general shape of the inside of the shoe and which receives a lining 5 onto which is to be cast the outer material of the shoe.
  • the lower half shell 2 includes a flange 6 which extends along the entire length of the flap of the upper which is to be folded over when the shoe is closed.
  • the flange 6 is located along the edge of the half shell 2 and conforms to the opening in the upper of the shoe.
  • the mold further comprises a sole block 11 which cooperates with the form 3 to produce the sole of the shoe in a manner to be described later.
  • the lining S has an elongated cut-out 4 at its front part and edge portions 7, 8 which bound cut-out 4.
  • the cut-out corresponds to the opening of the shoe in which the users foot is inserted, and the edge portions correspond to the flap portions of the shoe, edge portion 7 corresponding to the flap portion to be inserted beneath the flap portion corresponding to edge portion 8.
  • the casting of the shoe is effected in the following manner.
  • the mold is opened as shown in FIG. 1 wherein form 3 is separated from spaced half shells 1, 2.
  • a lining 5 is placed on form 3.
  • the lining may be constituted of leather, textile or any other natural or synthetic material, and the lining has a shape to fit the contour of form 3.
  • the upper half shell 1 is then moved to a closed position in which it is in abutment with lower half shell 2.
  • the lateral inside rim walls 10 of the upper half shell 1 apply the free end of edge portion 8 against the outer surface of flange 6.
  • the flange 6 is curved such that its inner surface forms a space with edge portion 7 except at the free end thereof where it is in contact, and the inner surface of flange 6 blends smoothly with the inner surface of shell 2.
  • the outer surface of flange 6 forms a space with the inner surface of shell 1 except at the base of the flange where it is in contact with rim walls 10 of the inner surface of shell 1.
  • the closing of the mold is completed by the sole block 11 which has, optionally, been previously placed between the two half shells.
  • the block 11 defines a space with form 3 which is continuous with the spaces formed by the half shells and form 3.
  • a suitable casting material 9 which may be any suitable elastomer, plastomer or mixture thereof.
  • the material 9 fills the space between lining 5 and half shells 1, 2 and block 11 whereby a shoe is formed.
  • the mold is opened and the shoe is removed therefrom after which the necessary accessories for the shoe are affixed thereto.
  • the shoe material may be die-cast.
  • the flange 6 may be positioned on the upper half shell 1 instead of the lower shell 2.
  • a mold has been provided by which a shoe with a lining can be cast with flap portions which can be overlapped an secured to close the shoe, by separating and isolating the overlapped edge portions 7 and 8 of the lining by means of flange 6 while permitting the injected material to be cast on these edge portions to form said flap portions.
  • the mold is thus characterized by the flange 6 which is inserted between the edge portions 7, 8 to separate and isolate the same while holding the edge portions against respective surfaces of the mold such that the material can be cast on the outer surfaces of the edge portions.
  • a mold for casting a shoe which is to have flap portions which can be overlapped and secured to close the shoe, said mold comprising an openable and closable mold body including an inner form and a pair of outer shells surrounding said inner form to define therewith a space for introduction of casting material to form a shoe, and means on at least one of said shells entering into said space and defining overlapped separated regions in said space for forming free flap portions on the shoe which can be overlapped in closed position or separated in open position.
  • a mold as claimed in claim 1, wherein said means comprises a flange on one shell projecting into said space and having opposite surfaces one of which faces the form member While the other faces the other shell.
  • a mold as claimed in claim '3 wherein said flange has a base portion, and said other surface of the flange at said base portion in the closed position of the mold body contacts the other shell member while the remainder of said other surface of the flange is spaced from said other shell member to form a space between the remainder of said other shell member.
  • a mold as claimed in claim 4 wherein said mold body comprises a sole block facing said form member in spaced relation therewith in the closed position of the mold body to define a space around said form member which is continuous with the space between said form member and the shell members.
  • said means comprises a flange 'which is inserted between said edge portions of the lining and holds said edge portions against respective surfaces of the mold body.
  • a mold as claimed in claim 8 wherein said form member supports the lining while said shells enclose the form member and define a space therewith in which the casting material is introduced to be molded on the lining.

Description

NOV. 24, 1970 J BAUDQU 3,541,646
MOLD FOR THE MANUFACTURE OF LINED SHOES BYCASTING Filed July 11, 19 8 2 Sheets-Sheet 1 E i-l Nov. 24, 1970 A. J. G. BAUDOU 3,541,546
MOLD FOR THE MANUFACTURE OF LINED SHOES BY CASTING 2 Sheets-Sheet 2 Filed July 11, 1968 United States Patent 3,541,646 MOLD FOR THE MANUFACTURE OF LINED SHOES BY CASTING Antoine Joseph Georges Baudou, Les Eqlisottes 33, France Filed July 11, 1968, Ser. No. 744,164 Claims priority, application France, July 12, 1967,
14,152 Int. Cl. B29d 31/00; B291? 1/10 US. Cl. 18-42 10 Claims ABSTRACT OF THE DISCLOSURE BRIEF SUMMARY OF THE INVENTION The present invention relates to a mold for casting shoes, particularly ski boots, of the type including a lining -and an opening in the upper for the introduction of the foot, and flap portions at said opening which fold back one upon the other in order to close the boot, with the aid of buckles, laces or any other suitable means.
The invention consists essentially of a mold in which a lining is to be directly fastened to the body of the boot, at the time of the casting, said lining having in its front part, a cut-out corresponding to the opening of the upper, and, during the operation of casting, in keeping in place in the mold, the edge portions of such cut-out by means of a rigid flange of suitable shape carried by a half-shell of the mold and inserted between the above-mentioned edge portions.
The invention is also directed to the construction of the mold, as well as to the ski boots or other shoes which are lined with the aid of this mold.
BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a sectional view through a mold according to the invention, in open position, at the level of the arch of the foot,
FIG. 2 is a sectional view of the mold of FIG. 1 in closed position, and
FIG. 3 is a perspective view of the lining.
DETAILED DESCRIPTION In FIGS. 1 and 2 there is shown a mold in which a shoe can be cast, such shoe being of the type having an opening in which the foot is inserted, and flap portions bounding the opening, one of which is overlapped on the other and secured thereto to close the shoe.
The mold comprises an upper half shell 1 with a concave hollow contour corresponding to the shape of one half of the shoe upper, a lower half shell 2 similar to half-shell 1 and to be described in greater detail hereinafter, and a form 3 which has the general shape of the inside of the shoe and which receives a lining 5 onto which is to be cast the outer material of the shoe.
In the molded finished shoe, a flap part of one half of the upper in inserted under an adjacent flap part of the other half of the upper in order to close the shoe. In order to be able to cast a shoe of this construction, the lower half shell 2 includes a flange 6 which extends along the entire length of the flap of the upper which is to be folded over when the shoe is closed. The flange 6 is located along the edge of the half shell 2 and conforms to the opening in the upper of the shoe.
The mold further comprises a sole block 11 which cooperates with the form 3 to produce the sole of the shoe in a manner to be described later.
The lining S has an elongated cut-out 4 at its front part and edge portions 7, 8 which bound cut-out 4. The cut-out corresponds to the opening of the shoe in which the users foot is inserted, and the edge portions correspond to the flap portions of the shoe, edge portion 7 corresponding to the flap portion to be inserted beneath the flap portion corresponding to edge portion 8.
The casting of the shoe is effected in the following manner.
The mold is opened as shown in FIG. 1 wherein form 3 is separated from spaced half shells 1, 2. A lining 5 is placed on form 3. The lining may be constituted of leather, textile or any other natural or synthetic material, and the lining has a shape to fit the contour of form 3.
The form 3 with the lining 5 thereon is placed into lower half shell 2, and the flange 6 of the latter applies the free end of edge portion 7 against form 3 while the loose edge portion 8 overlaps flange 6 whereby the flange is interposed between edge portions 7 and 8.
The upper half shell 1 is then moved to a closed position in which it is in abutment with lower half shell 2. In this operation, the lateral inside rim walls 10 of the upper half shell 1 apply the free end of edge portion 8 against the outer surface of flange 6. The flange 6 is curved such that its inner surface forms a space with edge portion 7 except at the free end thereof where it is in contact, and the inner surface of flange 6 blends smoothly with the inner surface of shell 2. The outer surface of flange 6 forms a space with the inner surface of shell 1 except at the base of the flange where it is in contact with rim walls 10 of the inner surface of shell 1. The closing of the mold is completed by the sole block 11 which has, optionally, been previously placed between the two half shells. The block 11 defines a space with form 3 which is continuous with the spaces formed by the half shells and form 3.
Into the mold thus assembled and closed a suitable casting material 9 is injected which may be any suitable elastomer, plastomer or mixture thereof. The material 9 fills the space between lining 5 and half shells 1, 2 and block 11 whereby a shoe is formed. The mold is opened and the shoe is removed therefrom after which the necessary accessories for the shoe are affixed thereto.
Numerous variations and modifications of the disclosed invention will become apparent without departing from the scope and spirit thereof. For example, the shoe material may be die-cast. Also, the flange 6 may be positioned on the upper half shell 1 instead of the lower shell 2.
It is seen that a mold has been provided by which a shoe with a lining can be cast with flap portions which can be overlapped an secured to close the shoe, by separating and isolating the overlapped edge portions 7 and 8 of the lining by means of flange 6 while permitting the injected material to be cast on these edge portions to form said flap portions. The mold is thus characterized by the flange 6 which is inserted between the edge portions 7, 8 to separate and isolate the same while holding the edge portions against respective surfaces of the mold such that the material can be cast on the outer surfaces of the edge portions.
I claim:
1. A mold for casting a shoe which is to have flap portions which can be overlapped and secured to close the shoe, said mold comprising an openable and closable mold body including an inner form and a pair of outer shells surrounding said inner form to define therewith a space for introduction of casting material to form a shoe, and means on at least one of said shells entering into said space and defining overlapped separated regions in said space for forming free flap portions on the shoe which can be overlapped in closed position or separated in open position.
2. A mold as claimed in claim 1, wherein said means comprises a flange on one shell projecting into said space and having opposite surfaces one of which faces the form member While the other faces the other shell.
3. A mold as claimed in claim 2, wherein said flange has a curved outline and a free edge which contacts said form member while forming a space with the remainder of said form member, said shell member on which the flange is located having a surface facing the form member which smoothly blends with the surface of the flange facing said form member.
4. A mold as claimed in claim '3, wherein said flange has a base portion, and said other surface of the flange at said base portion in the closed position of the mold body contacts the other shell member While the remainder of said other surface of the flange is spaced from said other shell member to form a space between the remainder of said other shell member.
5. A mold as claimed in claim 4, wherein said mold body comprises a sole block facing said form member in spaced relation therewith in the closed position of the mold body to define a space around said form member which is continuous with the space between said form member and the shell members.
6. A mold as claimed in claim 5, wherein said shell members surround the form member in the region of the upper of the shoe and have an abutting surface substantially centrally located with respect to said upper, said flange being located on said one shell member at said abutting surface.
7. A mold as claimed in claim 1, wherein said mold is adapted to support a lining having a cut out and free edge portions bounding the cut-out for casting the lining integrally with the casting material, said means supporting said edge portions in separated and isolated, overlapped relation in the closed position of the mold.
8. A mold as claimed in claim 7, wherein said means comprises a flange 'which is inserted between said edge portions of the lining and holds said edge portions against respective surfaces of the mold body.
9. A mold as claimed in claim 8, wherein said form member supports the lining while said shells enclose the form member and define a space therewith in which the casting material is introduced to be molded on the lining.
10. A mold as claimed in claim 9, wherein said flange is located on one of said shell members and has opposite surfaces, one of which faces the edge portion of the lining on the form member while the other edge portion of the lining rests on the other surface of the flange.
References Cited UNITED STATES PATENTS 2,114,708 4/1938 Gash 1842 2,357,360 9/1944 Rollman 1842 X 2,470,089 5/1949 Booth 1842 X 3,067,467 12/1962 Yamush. 3,444,591 5/1969 Becka et a1. 1842 J. HOWARD FLINT, JR., Primary Examiner US. Cl. X.R.
US744164A 1967-07-12 1968-07-11 Mold for the manufacture of lined shoes by casting Expired - Lifetime US3541646A (en)

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AT (1) AT315677B (en)
CH (1) CH490031A (en)
DE (2) DE1760804B1 (en)
FR (1) FR1565339A (en)
GB (2) GB1195479A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684417A (en) * 1971-03-01 1972-08-15 Antoine Joseph Georges Baudou Mold for ski boots and the like
US4139337A (en) * 1976-12-23 1979-02-13 Loic David Apparatus for the manufacture of orthopedic insoles
US4302169A (en) * 1980-07-29 1981-11-24 Bartex Industries Corp. Method and mold for making plastic shoes
WO1984002304A1 (en) * 1982-12-15 1984-06-21 Peterson Lab Method and apparatus for making corrected custom foot molds
US4521176A (en) * 1984-09-28 1985-06-04 Usm Corporation Shoe upper cavity shell
US4651444A (en) * 1984-03-27 1987-03-24 Roger Ours Method of manufacture of a shoe, a mold for carrying out said method and a shoe thus produced
US4747989A (en) * 1982-12-15 1988-05-31 Peterson Laboratories Method and apparatus for making corrected custom foot molds
US5282328A (en) * 1989-12-13 1994-02-01 Peterson Technology Trust Custom foot beds for footwear
US5785909A (en) * 1996-08-21 1998-07-28 Nike, Inc. Method of making footwear with a pourable foam
US5885500A (en) * 1995-12-20 1999-03-23 Nike, Inc. Method of making an article of footwear
US5942172A (en) * 1998-04-08 1999-08-24 Huang Liu; Su-Man Method for making a shoe pad
US8984776B2 (en) 2011-11-30 2015-03-24 Lacrosse Footwear, Inc. Polyurethane injected boot assembly and associated manufacturing method
US10076886B2 (en) * 2015-01-21 2018-09-18 Chinook Asia Llc Footwear having molded portion(s)
USD891043S1 (en) 2015-10-15 2020-07-28 LaCrosse Footwear Boot
USD895235S1 (en) 2011-11-30 2020-09-08 Lacrosse Footwear, Inc. Boot
DE102020119920A1 (en) 2020-07-28 2022-02-03 David Hahlbrock Method of making an orthopedic support and orthopedic support

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9022773D0 (en) * 1990-10-19 1990-12-05 Caldwell Kenneth Improvements in or relating to liners
DE602004010674T2 (en) 2004-10-28 2009-01-02 Lange International S.A. Shell for a sports shoe with inner sock

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2114708A (en) * 1935-04-26 1938-04-19 Gash David Gordon Means for manufacturing footwear
US2357360A (en) * 1938-11-12 1944-09-05 Heinz Rollmann Process and apparatus for the manufacture of molded rubber footwear
US2470089A (en) * 1944-09-28 1949-05-17 Jack J Booth Method of molding plastic shoes
US3067467A (en) * 1960-10-03 1962-12-11 Yanush Konstant Molding apparatus
US3444591A (en) * 1965-10-08 1969-05-20 Kamborian Jacob S Apparatus for casting an article onto a workpiece

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1215915B (en) * 1963-05-15 1966-05-05 Desma Werke Gmbh Process for the production of plastic footwear and footwear produced therefrom
DE1479102B1 (en) * 1964-12-10 1970-01-15 Desma Werke Gmbh Injection molding or Vulcanizing mold with a strip, a preferably two-part side mold and a displaceable bottom stamp for the manufacture of footwear

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2114708A (en) * 1935-04-26 1938-04-19 Gash David Gordon Means for manufacturing footwear
US2357360A (en) * 1938-11-12 1944-09-05 Heinz Rollmann Process and apparatus for the manufacture of molded rubber footwear
US2470089A (en) * 1944-09-28 1949-05-17 Jack J Booth Method of molding plastic shoes
US3067467A (en) * 1960-10-03 1962-12-11 Yanush Konstant Molding apparatus
US3444591A (en) * 1965-10-08 1969-05-20 Kamborian Jacob S Apparatus for casting an article onto a workpiece

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684417A (en) * 1971-03-01 1972-08-15 Antoine Joseph Georges Baudou Mold for ski boots and the like
US4139337A (en) * 1976-12-23 1979-02-13 Loic David Apparatus for the manufacture of orthopedic insoles
US4302169A (en) * 1980-07-29 1981-11-24 Bartex Industries Corp. Method and mold for making plastic shoes
WO1984002304A1 (en) * 1982-12-15 1984-06-21 Peterson Lab Method and apparatus for making corrected custom foot molds
US4522777A (en) * 1982-12-15 1985-06-11 Peterson Laboratories Method and apparatus for making corrected custom foot molds
US4747989A (en) * 1982-12-15 1988-05-31 Peterson Laboratories Method and apparatus for making corrected custom foot molds
US4651444A (en) * 1984-03-27 1987-03-24 Roger Ours Method of manufacture of a shoe, a mold for carrying out said method and a shoe thus produced
US4521176A (en) * 1984-09-28 1985-06-04 Usm Corporation Shoe upper cavity shell
US5282328A (en) * 1989-12-13 1994-02-01 Peterson Technology Trust Custom foot beds for footwear
US5885500A (en) * 1995-12-20 1999-03-23 Nike, Inc. Method of making an article of footwear
US5785909A (en) * 1996-08-21 1998-07-28 Nike, Inc. Method of making footwear with a pourable foam
US5942172A (en) * 1998-04-08 1999-08-24 Huang Liu; Su-Man Method for making a shoe pad
US8984776B2 (en) 2011-11-30 2015-03-24 Lacrosse Footwear, Inc. Polyurethane injected boot assembly and associated manufacturing method
US9204685B2 (en) 2011-11-30 2015-12-08 Lacrosse Footwear, Inc. Polyurethane injected boot assembly and associated manufacturing method
USD895235S1 (en) 2011-11-30 2020-09-08 Lacrosse Footwear, Inc. Boot
US10912347B2 (en) 2011-11-30 2021-02-09 Lacrosse Footwear, Inc. Polyurethane injected boot assembly and associated manufacturing method
US11666114B2 (en) 2011-11-30 2023-06-06 Lacrosse Footwear, Inc. Polyurethane injected boot assembly and associated manufacturing method
US10076886B2 (en) * 2015-01-21 2018-09-18 Chinook Asia Llc Footwear having molded portion(s)
USD891043S1 (en) 2015-10-15 2020-07-28 LaCrosse Footwear Boot
USD940439S1 (en) 2015-10-15 2022-01-11 Lacrosse Footwear, Inc. Boot
USD988648S1 (en) 2015-10-15 2023-06-13 Lacrosse Footwear, Inc. Boot
DE102020119920A1 (en) 2020-07-28 2022-02-03 David Hahlbrock Method of making an orthopedic support and orthopedic support

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AT315677B (en) 1974-06-10
GB1195480A (en) 1970-06-17
DE6604914U (en) 1970-03-19
CH490031A (en) 1970-05-15
DE1760804B1 (en) 1971-08-26
JPS4819731B1 (en) 1973-06-15
GB1195479A (en) 1970-06-17
FR1565339A (en) 1969-05-02

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