WO2011126455A1 - Casting mould kit - Google Patents

Casting mould kit Download PDF

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Publication number
WO2011126455A1
WO2011126455A1 PCT/SE2011/050429 SE2011050429W WO2011126455A1 WO 2011126455 A1 WO2011126455 A1 WO 2011126455A1 SE 2011050429 W SE2011050429 W SE 2011050429W WO 2011126455 A1 WO2011126455 A1 WO 2011126455A1
Authority
WO
WIPO (PCT)
Prior art keywords
roof
casting mould
kit
pieces
piece
Prior art date
Application number
PCT/SE2011/050429
Other languages
French (fr)
Inventor
Lars Svensson
Original Assignee
Lars Svensson
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lars Svensson filed Critical Lars Svensson
Priority to US13/639,713 priority Critical patent/US20130026337A1/en
Publication of WO2011126455A1 publication Critical patent/WO2011126455A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00—Other toys
    • A63H33/001—Toy-moulding appliances; Toy moulding
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00—Other toys
    • A63H33/04—Building blocks, strips, or similar building parts
    • A63H33/044—Buildings
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00—Other toys
    • A63H33/04—Building blocks, strips, or similar building parts
    • A63H33/06—Building blocks, strips, or similar building parts to be assembled without the use of additional elements
    • A63H33/08—Building blocks, strips, or similar building parts to be assembled without the use of additional elements provided with complementary holes, grooves, or protuberances, e.g. dovetails
    • A63H33/086—Building blocks, strips, or similar building parts to be assembled without the use of additional elements provided with complementary holes, grooves, or protuberances, e.g. dovetails with primary projections fitting by friction in complementary spaces between secondary projections, e.g. sidewalls
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00—Other toys
    • A63H33/42—Toy models or toy scenery not otherwise covered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/02—Moulds with adjustable parts specially for modifying at will the dimensions or form of the moulded article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/30—Mounting, exchanging or centering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/30—Mounting, exchanging or centering
    • B29C33/301—Modular mould systems [MMS], i.e. moulds built up by stacking mould elements, e.g. plates, blocks, rods
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
    • G09B25/04—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of buildings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/30—Mounting, exchanging or centering
    • B29C33/306—Exchangeable mould parts, e.g. cassette moulds, mould inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/30—Mounting, exchanging or centering
    • B29C33/308—Adjustable moulds

Definitions

  • the present invention relates to a casting mould kit. With such a kit it is possible to build casting moulds that may be used for moulding construction models, such as houses.
  • U.S. Patent no. 5,002,513 discloses a model building kit deploying interchangeable wall panels to create a variety of building designs.
  • the wall panels are further made up of sub-units which make it possible for a user to build individual wall panels.
  • the wall panels interconnect with one another and are vertically supported by columns. Even if this solution gives a user a wide variety of design options, the kit comprises a Sot of individual parts which make it complicated and/or expensive to manufacture such a kit.
  • GB Patent no. 546,860 discloses a casting mould for moulding toy construction elements, which may be assembled to form models.
  • In the easting mould there may be provided cores of different shapes, mandrels or partitions in order to produce constructional elements of different shapes. This renders the construction very complex and it will also be time consuming to set up the casting mould for a desired design.
  • U.S. Patent no. 4,253,637 discloses a casting mould for toy structural elements. Clamping rails are arranged on a base plate spaced apart but parallel to each other and secured to the base plate in an adjustable manner. Between the clamping rails there may be loca ted end and moulding pieces. There are a variety of different moulding pieces in order to design different structural elements.
  • GB Patent no, 546860 there is disclosed a casting mould for production of toy or model buildings.
  • Fhe mould consists of moveable parts that may be pinned on a base plate. Also this easting mould is fairly complex and requires a lot of individual pieces for different designs.
  • FR Patent no 2416102 describes a casting mould for creating model buildings. Also this easting mould is complex and requires a lot of individual parts in order to get a variety of designs.
  • a casting mould kit which is easy both to assemble and disassemble and which comprises as few parts as possible.
  • This object is achieved with a casting mould kit for moulding building models comprising a base plate provided with a grid of dowels on one side of the base plate.
  • the kit further comprises wall pieces having a rectangular shape and provided with dowels on a upper rim and with recesses on a lower rim of the wall piece.
  • the kit also comprises rod shaped roof pieces having a substantially triangular cross section provided with dowels on an upper rim and recesses at the lower base of the roof shaped piece and having a roof side with an inclination which is the opposite of the inclination of a short end side of the roof piece.
  • the wall piece of the casting mould kit comprises a casting side that is hollow. This hollow space may then be filled with clay and the user may emboss this casting side according to his on individual desire.
  • the casting side is provided with recesses for receiving adornments. By making it possible to attach adornments to the casting side the use may further enhance the individuality of the construction model.
  • the casting mould kit further comprises securing pieces. By using these securing pins the slippage between the wall pieces will be further reduced.
  • the casting mould kit further comprises roof eveners.
  • roof eveners are used for avoiding to get dowel marks on the roof of the finished product.
  • the casting mould kit further comprises a roof piece having a hollow roof side.
  • Figure la is a perspective view of a base plate of the present invention
  • Figure lb is an enlarged view of a cross like dowel
  • Figure 2a is a front view of a wall piece according to a first embodiment
  • Figure 2b is a perspective view of the wall piece according to a second embodiment, in which the wall piece is provided with recesses
  • Figure 2c is a perspective view of an adornment, in fonn of a window, adapted to fit in a recess of the wall piece.
  • Figure 2d is a front view of a third embodiment of the wall piece, in which the easting side is hollow,
  • Figure 3a is a side view of a roof piece according to a first embodiment
  • Figure 3b is a perspective view of a second embodiment of the roof piece, in which the casting side is hollow
  • Figure 3c is a perspective view of the roof piece according to a third
  • Figure 3d is a cross section of the roof piece shown in figure 3a.
  • Figure 3e is a cross section of a roof piece according to the third embodiment.
  • Figure 4a is a perspective view of a roof piece according to a fourth
  • Figure 4b is a cross section of the roof piece shown in figure 4a
  • Figure 5a is a perspective view of a roof piece according to a fifth embodiment
  • Figure 5b is a cross section of the roof piece shown in figure 5a
  • Figures 6a-i are perspective views of the step by step assembling of the casting mould and also a view of the moulded end product
  • Figure 7a and 7b are perspective views of a securing piece
  • Figures 8a-d are perspective views of another way of assembling the easting mould, using the same pieces, but achieving another end product, and
  • Figures 9a-c show yet another example of how the casting mould according to the present invention may be assembled, yielding a third end product.
  • Figures 1 Oa-c show yet another example of how the casting mould according to the present invention may be assembled, yielding a fourth end product. Detailed description of the invention
  • Figures 1 to 5 show the basic pieces that constitute the casting mould kit according to the present invention, in its simplest form the kit comprises a base plate, four wall pieces and four roof pieces.
  • the base plate 2 is shown in figure la. It may have any shape, but a rectangular or square plate is preferred.
  • the base plate 2 serves as a foundation when assembling the easting mould according to the present invention. Thus the shape is not important, but it will be easier to manufacture a square or rectangular base plate 2 then any other shape.
  • the base plate 2 is provided with a grid of dowels 4, one of which is closer depicted in figure lb.
  • Figure 1b shows a dowel 4 having a cross like cross section provided within a basic circular shape, it may also be square or circular in cross section, but the cross like shape has some advantages, which will be described below.
  • the distance between the dowels 4 is the same for all dowels. This is an important feature, since this will make the casting mould kit very.
  • the base plate 2 is also provided with roof eveners 6, to be described further below.
  • Figures 2a-d ail show embodiments of the wall pieces 8 comprised in the casting mould kit.
  • Figure 2a is a front view and figure 2b and 2d are perspective views of the wall piece 8.
  • the kit comprises at least four wall pieces 8.
  • the base plate 2 also the wall, pieces 8 are provided with dowels 4. These dowels 4 have the same shape and the same distance between them as the base plate 2 and are provided on the upper rim 10 of the wall piece.
  • the lower rim 12 of the wall piece 8 is provided with recesses 14, the shape of which are adapted to receive the dowels 4, Thus, the distance between the recesses 14 is the same as between the dowels 4.
  • the wall piece further comprises a casting side 16, which is the side of the wall piece 8 that is turned towards the inside of the casting mould, i.e. will be in contact with the easting material used for moulding the construction models.
  • the casting side 16 may be embossed, such that it gives the final construction model a pleasant and realistic look. If the construction model, for example, is a house the embossment of the casting side 16, may look like a brick wall or a wooden front.
  • the wall piece 8 comprises two casting sides 16, such that one side for example may be embossed as brick wall and the other side as a wooden front. This will make the casting mould kit even more and usable.
  • the casting side 16 or one of the casting sides be hollow and this side may be filled with clay or similar material .
  • This embodiment will give the user the possibility to create his own embossment and tailor the appearance of the construction model as he wishes.
  • Such a hollow wall piece is shown in figure 2d.
  • the casting side 16 may also be provided with recesses 18, as is shown in figure 2b, In these recesses 18 the user may push adornments 28, as is shown in figure 2c, to decorate the construction model. If the construction model is a building, the adornments may be windows 28 or doors.
  • the roof piece is generally rod shaped with a substantially triangular cross section.
  • a first embodiment of the roof piece 22 is shown in figure 3a and 3d.
  • the roof piece is provided with dowels 4 and recesses 14, corresponding to and having the same distance therein between as the wall piece 8.
  • the inclination of the roof side 24, i.e. the side of the roof piece that is turned towards the inside of the casting mould when it is assembled may vary, but is the same for all four roof pieces included in the basic kit,
  • One of the short ends 26 of the roof piece has the opposite inclination as the roof side 24. This will be explained closer in conjunction with figures 6-10, which show the assembling of the casting mould according to the present invention.
  • the roof side 24 of the roof pieces may be embossed to, for example, create a tile design. It may also be possible to have a roof side 24 that is hollow as is shown in figure 3 b, This will, as mentioned above, give a user the opportunity to make his own design.
  • Figures 3c and 3e show another embodiment of the cross section of the roof piece 22. As is evident in the figures, the lower part of the roof side 24 is chamfered. The amount of chamfering corresponds to the height of the roof eveners 6 described above in conjunction with figure 1a and which will be described further below.
  • the side opposite the roof side 24 is a vertical wall 32, as shown in figures 3d and 3e. In a preferred embodiment of the present invention this side may also be used as a wall side, possible with embossments or being hollow as has been described above.
  • figures 4-5 show roof pieces 22 thai correspond to the roof piece depicted in figure 3. The common features will therefore not be described again.
  • the roof side 24 is a vvlittie concave in figure 4 and a little convex in figure 5.
  • the short ends 26 of the roof pieces are shaped differently, such that the short ends 26 match with the concave and convex roof side 24, respectively.
  • figure 6 shows how the casting mould is assembled step by step in order to create a house.
  • the roof pieces 22 are assembled on the basic plate 2.
  • the roof part of the casting mould is finished.
  • the wall pieces 8 are put on top of the roof pieces by matchi ng the recesses of the wail pieces with the dowels of the roof pieces.
  • the final casting mould is shown.
  • the hollow space created by the assembled casting mould may be filled with some hardening material such as cement, lime, gypsum or the like.
  • the casting mould may be disassembled and the finished product is shown in figure 6i.
  • FIGS 8 to 10 Further examples of how the casting mould is assembled are shown in figures 8 to 10 together with the finished product.
  • al l four roof pieces are used with their inclined side as casting side, giving the finished product, in figure 8d, a different appearance than the product shown in figure 61.
  • the casting mould is locked with help of seeming pieces 36.
  • slits that may arise between the wall pieces may be eliminated.
  • a detailed view of the securing piece is shown in figures 7a and 7b.
  • the roof eveners 6 As for the examples shown in figure 9 and 10, it will be desirable to use the roof eveners 6 described above in order to get an even top of the roof. Without the roof eveners 6, the dowels 4 of the base plate would make impressions on the final product. Thus, by adding roof eveners to the casting mould kit, the kit will be even more useful and it will be possible to vary the end product even more.
  • the casting mould kit according to the present invention it is possible to create a variety of construction models, with only a very few pieces. The casting mould is very easy to assemble and to disassemble and the shape of the dowels and recesses will secure that there will be no slippage between the pieces in the kit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Educational Administration (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Educational Technology (AREA)
  • Business, Economics & Management (AREA)
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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Finishing Walls (AREA)

Abstract

The present invention relates to a easting mould kit which is easy both to assemble and disassemble and which comprises very few parts, Such a casting mould kit is used for moulding construction models. The kit comprises a base (2) plate provided with a grid of dowels (4) on one side of the base plate (2) and wall pieces (8) having a rectangular shape and provided with dowels (4) on a upper rim (10) and with recesses (14) on a lower rim (12) of the wall piece (8), The kit also comprises rod shaped roof pieces (22) having a substantially triangular cross section provided with dowels (4) on an upper rim (40) and recesses (14) at the lower base of the roof shaped piece (22) and having an roof side (24) with an inclination which is the opposite of the inclination of a short end side (26) of the roof piece (22),

Description

CASTING MOULD KIT
Technical Field of the Invention
The present invention relates to a casting mould kit. With such a kit it is possible to build casting moulds that may be used for moulding construction models, such as houses.
Description of Related Art
Today there are many hobbyists that build model houses and other constructions models, for example in conjunction with arranging landscapes for model railroading. The houses may be available as prefabricated model kits, which, are easy to assemble. The drawback with such prefabricated models is that the hobbyist has no influence on the design of the models. Thus, it is not possible for the hobbyist to tailor the construction models to the landscape. There have been made attempts to solve the problem with predetennined designs.
One such example is described in U.S. Patent no. 5,002,513, which discloses a model building kit deploying interchangeable wall panels to create a variety of building designs. The wall panels are further made up of sub-units which make it possible for a user to build individual wall panels. The wall panels interconnect with one another and are vertically supported by columns. Even if this solution gives a user a wide variety of design options, the kit comprises a Sot of individual parts which make it complicated and/or expensive to manufacture such a kit.
Another example is GB Patent no. 546,860, which discloses a casting mould for moulding toy construction elements, which may be assembled to form models. In the easting mould there may be provided cores of different shapes, mandrels or partitions in order to produce constructional elements of different shapes. This renders the construction very complex and it will also be time consuming to set up the casting mould for a desired design. U.S. Patent no. 4,253,637 discloses a casting mould for toy structural elements. Clamping rails are arranged on a base plate spaced apart but parallel to each other and secured to the base plate in an adjustable manner. Between the clamping rails there may be loca ted end and moulding pieces. There are a variety of different moulding pieces in order to design different structural elements.
In GB Patent no, 546860 there is disclosed a casting mould for production of toy or model buildings. Fhe mould consists of moveable parts that may be pinned on a base plate. Also this easting mould is fairly complex and requires a lot of individual pieces for different designs.
Finally, FR Patent no 2416102 describes a casting mould for creating model buildings. Also this easting mould is complex and requires a lot of individual parts in order to get a variety of designs.
Thus, there have been made many attempts, during an extended period of time, to accomplish an easy and simple casting mould for forming construction models, such as different buildings. However, as the examples above show they are still complex and require many different parts in order to be able to mould or assemble different and personalized construction models.
Summary of Invention it is an object of the present invention to provide a casting mould kit which is easy both to assemble and disassemble and which comprises as few parts as possible. This object is achieved with a casting mould kit for moulding building models comprising a base plate provided with a grid of dowels on one side of the base plate. The kit further comprises wall pieces having a rectangular shape and provided with dowels on a upper rim and with recesses on a lower rim of the wall piece. The kit also comprises rod shaped roof pieces having a substantially triangular cross section provided with dowels on an upper rim and recesses at the lower base of the roof shaped piece and having a roof side with an inclination which is the opposite of the inclination of a short end side of the roof piece. With such a kit it will be easy to assemble the casting mould in many different ways in order to mould many different construction models using just the few pieces of the casting mould kit. The casting mould created by the present invention is also very easy to disassemble.
According to another object of the present invention there is provided a casting mould kit in which the dowels have a cross like cross section. This will secure that the different pieces of the kit are assembled with no slippage between the pieces in the kit. According to a further object of the present invention the wall piece of the casting mould kit comprises a casting side that is hollow. This hollow space may then be filled with clay and the user may emboss this casting side according to his on individual desire. According to yet another object of the present invention the casting side is provided with recesses for receiving adornments. By making it possible to attach adornments to the casting side the use may further enhance the individuality of the construction model. According to a further object of the present invention the casting mould kit further comprises securing pieces. By using these securing pins the slippage between the wall pieces will be further reduced.
According to yet another object of the present invention the casting mould kit further comprises roof eveners. Such roof eveners are used for avoiding to get dowel marks on the roof of the finished product.
According to a further object of the present invention there is provided the casting mould kit further comprises a roof piece having a hollow roof side.
Brief description of the Drawings
Further objects, features, and advantages of the invention will appear from the following description of several embodiments of the invention, wherein various aspects of the invention will be described in more detail with reference to the accompanying drawings, in which:
Figure la is a perspective view of a base plate of the present invention, Figure lb is an enlarged view of a cross like dowel,
Figure 2a is a front view of a wall piece according to a first embodiment, Figure 2b is a perspective view of the wall piece according to a second embodiment, in which the wall piece is provided with recesses,
Figure 2c is a perspective view of an adornment, in fonn of a window, adapted to fit in a recess of the wall piece.
Figure 2d is a front view of a third embodiment of the wall piece, in which the easting side is hollow,
Figure 3a is a side view of a roof piece according to a first embodiment, Figure 3b is a perspective view of a second embodiment of the roof piece, in which the casting side is hollow,
Figure 3c is a perspective view of the roof piece according to a third
embodiment,
Figure 3d is a cross section of the roof piece shown in figure 3a.
Figure 3e is a cross section of a roof piece according to the third embodiment. Figure 4a is a perspective view of a roof piece according to a fourth
embodiment,
Figure 4b is a cross section of the roof piece shown in figure 4a,
Figure 5a is a perspective view of a roof piece according to a fifth embodiment,
Figure 5b is a cross section of the roof piece shown in figure 5a,
Figures 6a-i are perspective views of the step by step assembling of the casting mould and also a view of the moulded end product,
Figure 7a and 7b are perspective views of a securing piece,
Figures 8a-d are perspective views of another way of assembling the easting mould, using the same pieces, but achieving another end product, and
Figures 9a-c show yet another example of how the casting mould according to the present invention may be assembled, yielding a third end product.
Figures 1 Oa-c show yet another example of how the casting mould according to the present invention may be assembled, yielding a fourth end product. Detailed description of the invention
Figures 1 to 5 show the basic pieces that constitute the casting mould kit according to the present invention, in its simplest form the kit comprises a base plate, four wall pieces and four roof pieces. The base plate 2 is shown in figure la. It may have any shape, but a rectangular or square plate is preferred. The base plate 2 serves as a foundation when assembling the easting mould according to the present invention. Thus the shape is not important, but it will be easier to manufacture a square or rectangular base plate 2 then any other shape. As is evident from figure la the base plate 2 is provided with a grid of dowels 4, one of which is closer depicted in figure lb.
Figure 1b shows a dowel 4 having a cross like cross section provided within a basic circular shape, it may also be square or circular in cross section, but the cross like shape has some advantages, which will be described below. The distance between the dowels 4 is the same for all dowels. This is an important feature, since this will make the casting mould kit very. In figure 1 a the base plate 2 is also provided with roof eveners 6, to be described further below.
Figures 2a-d ail show embodiments of the wall pieces 8 comprised in the casting mould kit. Figure 2a is a front view and figure 2b and 2d are perspective views of the wall piece 8. As mentioned above the kit comprises at least four wall pieces 8. As for the base plate 2, also the wall, pieces 8 are provided with dowels 4. These dowels 4 have the same shape and the same distance between them as the base plate 2 and are provided on the upper rim 10 of the wall piece. The lower rim 12 of the wall piece 8 is provided with recesses 14, the shape of which are adapted to receive the dowels 4, Thus, the distance between the recesses 14 is the same as between the dowels 4. The wall piece further comprises a casting side 16, which is the side of the wall piece 8 that is turned towards the inside of the casting mould, i.e. will be in contact with the easting material used for moulding the construction models. The casting side 16 may be embossed, such that it gives the final construction model a pleasant and realistic look. If the construction model, for example, is a house the embossment of the casting side 16, may look like a brick wall or a wooden front. In a preferred embodiment of the present invention the wall piece 8 comprises two casting sides 16, such that one side for example may be embossed as brick wall and the other side as a wooden front. This will make the casting mould kit even more and usable. In another embodiment of the present invention may the casting side 16 or one of the casting sides be hollow and this side may be filled with clay or similar material . This embodiment will give the user the possibility to create his own embossment and tailor the appearance of the construction model as he wishes. Such a hollow wall piece is shown in figure 2d. in yet another embodiment of the present invention the casting side 16 may also be provided with recesses 18, as is shown in figure 2b, In these recesses 18 the user may push adornments 28, as is shown in figure 2c, to decorate the construction model. If the construction model is a building, the adornments may be windows 28 or doors.
Turning now to figures 3-5, the roof pieces 22 will be described. The roof piece is generally rod shaped with a substantially triangular cross section. A first embodiment of the roof piece 22 is shown in figure 3a and 3d. As is evident from figure 3a, also the roof piece is provided with dowels 4 and recesses 14, corresponding to and having the same distance therein between as the wall piece 8. The inclination of the roof side 24, i.e. the side of the roof piece that is turned towards the inside of the casting mould when it is assembled may vary, but is the same for all four roof pieces included in the basic kit, One of the short ends 26 of the roof piece has the opposite inclination as the roof side 24. This will be explained closer in conjunction with figures 6-10, which show the assembling of the casting mould according to the present invention.
As for the wall pieces 8, also the roof side 24 of the roof pieces may be embossed to, for example, create a tile design. It may also be possible to have a roof side 24 that is hollow as is shown in figure 3 b, This will, as mentioned above, give a user the opportunity to make his own design.
Figures 3c and 3e show another embodiment of the cross section of the roof piece 22. As is evident in the figures, the lower part of the roof side 24 is chamfered. The amount of chamfering corresponds to the height of the roof eveners 6 described above in conjunction with figure 1a and which will be described further below.
Furthermore, the side opposite the roof side 24 is a vertical wall 32, as shown in figures 3d and 3e. In a preferred embodiment of the present invention this side may also be used as a wall side, possible with embossments or being hollow as has been described above. Also figures 4-5 show roof pieces 22 thai correspond to the roof piece depicted in figure 3. The common features will therefore not be described again. The difference between the embodiments compared with the embodiment in figure 3 is that the roof side 24 is a vvlittie concave in figure 4 and a little convex in figure 5. Thus, also the short ends 26 of the roof pieces are shaped differently, such that the short ends 26 match with the concave and convex roof side 24, respectively.
In order to better understand the present invention, several examples will now be given how the easting mould may be assembled in order to create construction models of different shapes, but using the same basic parts. Thus, figure 6 shows how the casting mould is assembled step by step in order to create a house. First the four roof pieces 22 are assembled on the basic plate 2. When all four pieces are in place, the roof part of the casting mould is finished. Thereafter the wall pieces 8 are put on top of the roof pieces by matchi ng the recesses of the wail pieces with the dowels of the roof pieces. Thus, in figure 6h the final casting mould is shown. Then the hollow space created by the assembled casting mould may be filled with some hardening material such as cement, lime, gypsum or the like. When the hardening material has hardened the casting mould may be disassembled and the finished product is shown in figure 6i.
If one looks at the finished product, shown in figure 6f it should be noted that the "roof "at the short side of the house is vertical. Thus, when assembling the casting mould for this specific house, two of the roof pieces have had their inclined side as casting sides and two of the roof pieces have had their vertical sides as casting sides.
Further examples of how the casting mould is assembled are shown in figures 8 to 10 together with the finished product. As for the example, shown in figure 8, it should be noted that al l four roof pieces are used with their inclined side as casting side, giving the finished product, in figure 8d, a different appearance than the product shown in figure 61. Thus, even if the same pieces are used to assemble the casting mould, the result will be different. In figure 8c it should further be noted that the casting mould is locked with help of seeming pieces 36. By enhancing the moulding kit with securing pieces 36, slits that may arise between the wall pieces may be eliminated. A detailed view of the securing piece is shown in figures 7a and 7b. As for the examples shown in figure 9 and 10, it will be desirable to use the roof eveners 6 described above in order to get an even top of the roof. Without the roof eveners 6, the dowels 4 of the base plate would make impressions on the final product. Thus, by adding roof eveners to the casting mould kit, the kit will be even more useful and it will be possible to vary the end product even more. By using the casting mould kit according to the present invention it is possible to create a variety of construction models, with only a very few pieces. The casting mould is very easy to assemble and to disassemble and the shape of the dowels and recesses will secure that there will be no slippage between the pieces in the kit.
It shall be understood that even if the invention has been described with reference to preferred embodiments the invention is not limited thereto. There are many other embodiments and variations that are likewise within the scope of the invention, which is best defined by the accompanying claims.

Claims

1 . A casting mould kit for moulding building models comprising a base plate (2) provided with a grid of dowels (4) on one side of the base plate, wall pieces (8) having a rectangular shape and provided with dowels (4) on a upper rim (10) and with recesses (14) on a lower rim (12) and rod shaped roof pieces (22) having a substantially triangular cross section provided with dowels (4) on an upper rim (40) and recesses (14) at the lower base of the roof shaped piece (22) and having an roof side (24) with an inclination which is the opposite of the inclination of a short end side (26) of the roof piece (22),
2. A casting mould kit according to claim 1 , in which the dowels (4) have a cross like cross section.
3. A casting mould kit according to claim 1 or 2, in which a casting side (16) of the wall piece (8) is hollow.
4. A casting mould kit according to any of claims 1 or 2, in which a casting side (16) is provided with recesses (18) for receiving adornments.
5. A casting mould kit according to any of claims 1 to 4, in which the kit further
comprises securing pieces (36).
6. A casting mould kit according to any of claims 1 to 5, in which the kit further
comprises roof eveners (6).
7. A casting mould kit according to any of claims 1 to 6, in which the roof side (24) of the roof piece (8) is hollow.
PCT/SE2011/050429 2010-04-08 2011-04-08 Casting mould kit WO2011126455A1 (en)

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SE1050340-7 2010-04-08
SE1050340A SE535252C2 (en) 2010-04-08 2010-04-08 Molding kit for casting building models

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US20130026337A1 (en) 2013-01-31
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