US20210291069A1 - Magnetic Sheet - Google Patents

Magnetic Sheet Download PDF

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Publication number
US20210291069A1
US20210291069A1 US16/485,065 US201816485065A US2021291069A1 US 20210291069 A1 US20210291069 A1 US 20210291069A1 US 201816485065 A US201816485065 A US 201816485065A US 2021291069 A1 US2021291069 A1 US 2021291069A1
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US
United States
Prior art keywords
magnetic
magnetic sheet
frame structure
frame
steel pipe
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US16/485,065
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English (en)
Inventor
Zhiwei Zhou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salens Toys Shangahi Co Ltd
Salens Toys Shanghai Ltd
Salens Toy Shanghai Co Ltd
Original Assignee
Salens Toy Shanghai Co Ltd
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 Salens Toy Shanghai Co Ltd filed Critical Salens Toy Shanghai Co Ltd
Assigned to SALENS TOYS(SHANGHAI)., LTD. reassignment SALENS TOYS(SHANGHAI)., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ZHOU, ZHIWEI
Assigned to SALENS TOYS (SHANGAHI) CO., LTD. reassignment SALENS TOYS (SHANGAHI) CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ZHOU, ZHIWEI
Publication of US20210291069A1 publication Critical patent/US20210291069A1/en
Abandoned legal-status Critical Current

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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
    • A63H33/04—Building blocks, strips, or similar building parts
    • A63H33/046—Building blocks, strips, or similar building parts comprising magnetic interaction means, e.g. holding together by magnetic attraction
    • 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
    • A63H33/042—Mechanical, electrical, optical, pneumatic or hydraulic arrangements; Motors
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00—Other toys
    • A63H33/26—Magnetic or electric toys

Definitions

  • the invention relates to the technical field of toys and teaching aids, and more particularly, to a magnetic sheet.
  • Magnetic sheets are one of the favorite toys for kids.
  • the existing magnetic sheet often takes various shapes, for example, square, rectangle, triangle, circular, polygon,
  • the magnetic sheet mainly comprises a magnetic sheet body and a plurality of magnetic clamping parts.
  • the plurality of magnetic clamping parts have magnets therein and are clamped to the periphery of the magnetic sheet body, allowing the periphery of the magnetic sheet body to become magnetic.
  • Such an arrangement enables the periphery of the magnetic sheet body to be temporarily connected to or fixed to peripheries of other magnetic sheets by magnetic force. Since the magnetic sheets have the plurality of magnetic clamping parts therein, they may stick together on every side, and kids may create a variety of shapes by using several pieces of magnetic sheets having various shapes, thus sparking imagination in children of all ages.
  • the plurality of magnetic clamping parts in the present magnetic sheet are fixed to the magnetic sheet body by clamping or with glue, or they are pressed against the magnetic sheet body by a machine.
  • a problem with such an arrangement is that the plurality of magnetic clamping parts may be damaged or they may fall off.
  • the present invention aims to provide a magnetic sheet.
  • a magnetic sheet comprising: a frame structure, a plurality of magnetic structures being arranged on the periphery of the frame structure, the frame structure and the plurality of magnetic structures being integrally formed; wherein each of the plurality of magnetic structures comprises: a steel pipe, a mag et arranged in the steel pipe and plugs at both ends of the steel pipe.
  • the frame structure comprises: an annular outer frame, an annular inner frame disposed in the outer frame, and a connecting part for connecting the outer frame and the inner frame, wherein the plurality of magnetic structures are arranged in the outer frame.
  • the frame structure further comprises: a plurality of reinforcing ribs disposed on the connecting part, two ends of each of the plurality of reinforcing ribs are connected to the outer frame and the inner frame, respectively, and a first groove is formed between two adjacent reinforcing ribs.
  • the magnetic sheet wherein a second groove is formed at a side of the outerframe which is close to the inner frame, and two second grooves are formed at two ends of each of the plurality of magnetic structures.
  • the plugs comprise the following parts in sequence: a cylindrical plugging part, plugged into the steel pipe; a circular-truncated-cone-shaped sealing part for sealing the steel pipe; and a cylindrical connecting part, connected to the frame structure.
  • the plugging part has an outer diameter greater than an outer diameter of the connecting part; a larger bottom surface of the sealing part has an outer diameter greater than the outer diameter of the plugging part, and a smaller bottom surface of the sealing part has an outer diameter less than the outer diameter of the connecting part.
  • the magnetic sheet wherein the plurality of through holes are formed in a thickness direction of the frame structure and are evenly distributed along a periphery of the frame structure.
  • the magnetic sheet further comprises: a. plurality of mushroom pins that are fitted with the plurality of through holes.
  • the magnetic sheet further comprises: a luminous system, disposed in the frame structure.
  • the luminous system comprises: a luminous element, a controller for driving the luminous element, and a power supply for powering the luminous element and the controller,
  • the magnetic structures which are integrated with the frame structure, after the magnetic sheet is used for a long time, the magnetic structures still can be attached to a magnetic sheet body, and the problems that the magnetic structures are damaged and fall off are avoided.
  • FIG. 1 is a front view of a magnetic sheet according to the present invention.
  • FIG. 2 is a top view of a magnetic sheet according to the present invention.
  • FIG. 3 is a perspective view of a magnetic sheet according to the present invention.
  • FIG. 4 is a schematic view of a magnetic structure of a magnetic sheet according to the present invention.
  • FIG. 5 is a front view of a magnetic structure of a magnetic sheet according to the present invention.
  • FIG. 6 is a front view of a plug of a magnetic structure of a magnetic sheet according to the present invention.
  • FIG. 7 is a schematic view of a mushroom pin of a magnetic sheet according to the present invention.
  • FIG. 8 is schematic view of a bigeminy mushroom pin of a magnetic sheet according to the present invention.
  • FIG. 9 is schematic view of a trigeminy mushroom pin of a magnetic sheet according to the present invention.
  • FIG. 10 is another schematic view of a trigeminy mushroom pin of a magnetic sheet according to the present invention when observed from another angle.
  • the term “plurality” means a number greater than one.
  • FIG. 1 is a front view of a magnetic sheet according to the present invention.
  • FIG. 2 is a top view of a magnetic sheet according to the present invention.
  • FIG. 3 is a perspective view of a magnetic sheet according to the present invention.
  • FIG. 4 is a schematic view of a magnetic structure of a magnetic sheet according to the present invention.
  • FIG. 5 is a front view of a magnetic structure of a magnetic sheet according to the present invention.
  • FIG. 6 is a front view of a plug of a. magnetic sheet according to the present invention.
  • a magnetic sheet comprising: a frame structure 1 , which is an annular square structure in this embodiment; in other embodiments, the frame structure may be rectangular, circular, triangular, diamond, parallelogram, polygon, or other planar shapes; in other embodiments, the frame structure I may be of a tapered shape, a cylindrical shape, a circular-truncated-cone shape, a pyramid shape, or other three-dimensional shapes.
  • a plurality of through holes 2 are formed in the frame structure 1 .
  • a plurality of magnetic structures 3 are provided along a periphery of the frame structure 1 . The plurality of magnetic structures 3 allow for a detachable connection among the same type of or different types of frame structures.
  • the frame structure 1 is integrally formed with the plurality of magnetic structures 3 , so as to prevent the magnetic structures 3 from being damaged or falling off when they have been in use for a long time.
  • each of the plurality of magnetic structures 3 comprises: a steel pipe 31 , a magnet 32 arranged in the steel pipe 31 and plugs 33 at both ends of the steel pipe 31 .
  • the steel pipe 31 may be a tubular structure made of other materials, for example, the steel pipe 31 may be replaced by a plastic pipe.
  • the magnet 32 is a cylinder.
  • the magnetic structure 3 is configured to allow the magnet 32 to freely rotate in an interior of the steel pipe 31 about an axis, so that the magnetic structures may adaptively adjust a direction of a magnetic pole when magnetically attached to other magnetic sheets.
  • the steel pipe is sealed by the plugs 33 , so molding materials for the frame structure 1 may not come into contact with the magnet 32 when the frame structure 1 is integrally formed by the molding materials, and the fixing of the magnet 32 may be avoided.
  • the frame structure 1 comprises: an annular outer frame 11 , an annular inner frame 12 disposed in the outer frame 11 , and a connecting part 13 for connecting the outer frame 11 and the inner frame 12 , wherein the plurality of magnetic structures 3 are arranged in the outer frame 11 .
  • the outer frame 11 may have a longitudinal section in the shape of circle or in the shape of ellipse; the inner frame 12 ay have a longitudinal section in the shape of circle or in the shape of ellipse; and the connecting part 13 may have a longitudinal section in the shape of rectangle.
  • Both the outer frame 11 and the inner frame 12 have a thickness greater than that of the connecting part 13 , such that an annular groove 15 is formed between the outer frame 11 and the inner frame 12 .
  • a surface of the connecting part 13 is formed as a bottom surface of the groove 15
  • a side surface of the outer frame 11 and a side surface of the inner frame 12 are formed as side walls of the groove 15 .
  • the frame structure 1 further comprises: a plurality of reinforcing ribs 14 disposed on the connecting part 13 , two ends of each of the plurality of reinforcing ribs 14 are connected to the outer frame 11 and the inner frame 12 , respectively.
  • the plurality of reinforcing ribs 14 are disposed in the groove 15 .
  • each of the plurality of magnetic structures 3 is provided with a reinforcing rib 14 .
  • more than one reinforcing ribs 14 are arranged between the outer frame 11 and the inner frame 12 , so as to adjust the overall strength of the magnetic sheet.
  • a first groove 141 is formed between two adjacent reinforcing ribs 14 .
  • the first groove 141 is formed by a first projection on a mold which is at a side surface of the magnetic structure 3 .
  • the side surface of the magnetic structure abuts against the first projection, such that the magnetic structure 3 may be limited by the mold in a radial direction.
  • a second groove 111 is formed on a side of the outer frame 11 which is close to the inner frame 12 , and two ends of each of the plurality of magnetic structures 3 are provided with two second grooves 111 .
  • the second groove 111 is formed by a second projection located on the two ends of the magnetic structure 3 .
  • Step S 1 providing an upper die and a lower die, forming a plurality of first projections and a plurality of second projections on the upper die and the lower die, respectively, wherein the plurality of first projections are located at two ends of a predetermined position of the magnetic structure 3 , and the plurality of second projections are located at a side surface at a predetermined position of the magnetic structure 3 ;
  • Step S 2 placing the plurality of magnetic structures 3 in the predetermined positions for closed-die forging.
  • Step S 1 the plurality of first projections and the plurality of second projections are fixedly connected to the upper die or the lower die.
  • the plurality of second projections are iron rods fixed to the upper die or the lower die.
  • Step S 2 the two ends of the magnetic structure 3 abut against the first projections, respectively, and the side surface of the magnetic structure 3 abuts against the second projections, so as to position the magnetic structures 3 during the process of casting.
  • the plugs 33 are of an integrated structure, the plugs 33 comprise the following parts in sequence: a cylindrical plugging part 331 , plugged into the steel pipe 31 ; a circular-truncated-cone-shaped sealing part 332 for sealing the steel pipe 31 ; and a cylindrical connecting part 33 , connected to the frame structure 1 .
  • part of materials of the frame structure 1 are wrapped outside the connecting part 333 ; furthermore, part of materials of the frame structure 1 may be wrapped around a part of the sealing part 332 , such that movement of the magnetic structures 3 in a direction of the periphery of the magnetic sheet is limited, and movement of the magnetic structures 3 in the radial direction of the magnetic sheet is also limited.
  • part of materials of the frame structure 1 may also be wrapped around the side surface of the steel pipe 31 , so as to further limit the movement of the magnetic structure 3 in the radial direction of the magnetic sheet.
  • the plugging part 331 has an outer diameter greater than an outer diameter of the connecting part 333 ; a larger bottom surface of the sealing part 332 has an outer diameter greater than the outer diameter of the plugging part 331 , and a smaller bottom surface of the sealing part 332 has an outer diameter less than the outer diameter of the connecting part 333 .
  • the plurality of through holes 2 are formed in a thickness direction of the frame structure 1 and are evenly distributed along a periphery of the frame structure 1 .
  • the plurality of through holes 2 are preferably arranged in corners of the frame structure 1 ; while when the frame structure 1 takes other shapes, the through holes 2 may be arranged as desired.
  • both the number of the through holes 2 and the number of magnetic structures are preferably 3
  • the through holes 2 are arranged in the corners of the frame structure 1
  • the magnetic structures 3 are arranged on sides of the frame structure 1
  • both the number of the through holes 2 and the number of the magnetic structures are preferably 4
  • the through holes 2 are arranged in the corners of the frame structure 1
  • the magnetic structures 3 are arranged on the sides of the frame structure 1
  • the frame structure 1 is of a polygonal shape, it is configured in the same manner as described above.
  • the through holes 2 and the magnetic structures 3 are uniformly and alternatively disposed at the periphery of the frame structure
  • the number of the through holes 2 is preferably determined by the number of the corners of the frame structure 1
  • the number of the magnetic structures 3 is preferably determined by the number of edges of the frame structure 1 .
  • the magnetic structures 3 may be arranged on the curved surface.
  • FIG. 7 is a schematic view of a mushroom pin of a magnetic sheet according to the present invention.
  • FIG. 8 is schematic view of a bigeminy mushroom pin of a magnetic sheet according to the present invention.
  • FIG. 9 is schematic view of a trigeminy mushroom pin of a magnetic sheet according to the present invention.
  • FIG. 10 is another schematic view of a trigeminy mushroom pin of a magnetic sheet according to the present invention when observed from another angle.
  • the magnetic sheet further comprises: a plurality of mushroom pins that are fitted with the plurality of through holes 2 .
  • Two magnetic sheets may be connected with each other by the mushroom pin.
  • the mushroom pin may be selectively arranged to form an angle between the two magnetic sheets, and to establish a variety of patterns or structures formed by the magnetic sheets. Combination between different number of mushroom pins and through holes enables all kinds of connections among the magnetic sheets.
  • the mushroom pin may be a single mushroom pin 41 , as shown in FIG. 7 .
  • the single mushroom pin 41 is of a columnar structure in the form of hemisphere at two ends thereof, wherein the two ends of the single mushroom pin 41 has an outer diameter slightly greater than that of a central portion thereof.
  • the two magnetic sheets may be stacked on each other and fixed relative to each other in its thickness direction by the single mushroom pin 41 .
  • the mushroom pin may be a bigeminy mushroom pin 42 , as shown in FIG. 8 .
  • the bigeminy mushroom pin 42 comprises two single mushroom pin portions 421 and a bigeminy connecting part 422 for connecting the two single mushroom pin portions 421 .
  • the bigeminy connecting part 422 is made of a flexible material, such that the two single mushroom pin portions 421 on the two sides of the bigeminy connecting part 422 may move with respect to each other, so as to adapt the various angles between the two magnetic sheets.
  • the two magnetic sheets may be arranged and fixed to each other in a length direction, in a width direction or in a radial direction by the bigeminy connecting part 42 .
  • the mushroom pin may be a trigeminy mushroom pin 43 , as shown in FIG. 9 and FIG. 10 .
  • the trigeminy mushroom pin 43 comprises three single mushroom pin portions 431 and a trigeminy connecting part 432 for connecting the three single mushroom pin portions 431 .
  • the trigeminy connecting part 432 is made of a flexible material, such that the single mushroom pin portions 421 thereon may move with respect to each other, so as to adapt the various angles between the two magnetic sheets.
  • the trigeminy connecting part 432 is of a cambered surface. Every two of the three magnetic sheets may be arranged to be perpendicular to each other and fixed to each other by the trigeminy mushroom pin 43 .
  • the three single mushroom pin portions 431 of the trigeminy mushroom pin 43 are perpendicular to one another; in other cases, the three single mushroom pin portions 431 of the trigeminy mushroom pin 43 may be formed at other angles, such that the three magnetic sheets may be formed to be different shapes and fixed to one another.
  • the magnetic sheet further comprises: a luminous system (not shown in the figures), disposed in the frame structure 1 .
  • the luminous system comprises: a luminous element, a controller for driving the luminous element, and a power supply for powering the luminous element and the controller.
  • the luminous element may be LED lamp beads, electroluminescent sheets, and light emitting diodes, and so on.
  • the luminous element may also be electroluminescent power suspended within the material of the frame structure 1 .
  • the controller has a built-in program for controlling the illumination of the luminous element. Moreover, the controller is used to drive the luminous element to flash constantly or briefly, to be on or off for a continuous time, and to perform a combination of two thereof.

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  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Toys (AREA)
  • Soft Magnetic Materials (AREA)
US16/485,065 2018-09-25 2018-10-10 Magnetic Sheet Abandoned US20210291069A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201811116957.7 2018-09-25
CN201811116957.7A CN109078341A (zh) 2018-09-25 2018-09-25 一种磁力片
PCT/CN2018/109638 WO2020062325A1 (zh) 2018-09-25 2018-10-10 一种磁力片

Publications (1)

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US20210291069A1 true US20210291069A1 (en) 2021-09-23

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US16/485,065 Abandoned US20210291069A1 (en) 2018-09-25 2018-10-10 Magnetic Sheet

Country Status (9)

Country Link
US (1) US20210291069A1 (ko)
EP (1) EP3650094A4 (ko)
JP (1) JP2022500089A (ko)
KR (1) KR20210058607A (ko)
CN (1) CN109078341A (ko)
AU (1) AU2018405438B2 (ko)
SG (1) SG11201907059RA (ko)
TW (1) TWI732265B (ko)
WO (1) WO2020062325A1 (ko)

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CN110368705A (zh) * 2019-08-15 2019-10-25 塞伦斯玩具（上海）有限公司 一种二次注塑磁力片及其安装方法
CN111370200A (zh) * 2020-04-15 2020-07-03 杭州思创磁性器件有限公司 一种全维度自由吸合磁路结构
CN112354196A (zh) * 2020-10-27 2021-02-12 塞伦斯玩具（上海）有限公司 一种磁力片及其制造方法
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WO2020062325A1 (zh) 2020-04-02
CN109078341A (zh) 2018-12-25
JP2022500089A (ja) 2022-01-04
TWI732265B (zh) 2021-07-01
KR20210058607A (ko) 2021-05-24
AU2018405438B2 (en) 2021-01-21
SG11201907059RA (en) 2020-05-28
TW202015773A (zh) 2020-05-01
EP3650094A1 (en) 2020-05-13
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