Source: http://www.google.com/patents/US7254907?dq=inassignee:doubleclick
Timestamp: 2016-02-09 15:15:15
Document Index: 511769331

Matched Legal Cases: ['art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1']

Patent US7254907 - Midsole including cushioning structure - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA midsole includes a thick plate-shaped or column-shaped cushioning portion. A plurality of grooves is formed on an outer peripheral surface of the cushioning portion. The respective grooves are helically formed around a substantially vertical line. The respective grooves are arranged substantially parallel...http://www.google.com/patents/US7254907?utm_source=gb-gplus-sharePatent US7254907 - Midsole including cushioning structureAdvanced Patent SearchPublication numberUS7254907 B2Publication typeGrantApplication numberUS 11/443,532Publication dateAug 14, 2007Filing dateMay 30, 2006Priority dateMay 11, 2001Fee statusPaidAlso published asUS6789333, US7082699, US20030200678, US20040177530, US20060213083Publication number11443532, 443532, US 7254907 B2, US 7254907B2, US-B2-7254907, US7254907 B2, US7254907B2InventorsTsuyoshi Nishiwaki, Toshikazu Kayano, Shigeyuki MitsuiOriginal AssigneeAsics Corp.Export CitationBiBTeX, EndNote, RefManPatent Citations (51), Referenced by (5), Classifications (13), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetMidsole including cushioning structure
US 7254907 B2Abstract
1. A midsole including a cushioning structure, which is provided between an outer sole and an upper and is suitable for absorbing a shock of landing, wherein:
the cushioning structure comprises a thick plate-shaped or column-shaped cushioning portion;
a plurality of grooves are helically formed on an outer peripheral surface of the cushioning portion, the grooves not being continuous with each other;
each of the grooves has substantially a same lead angle between the grooves and a horizontal plane;
in the cushioning member projected on the horizontal plane, each of the grooves subtends an arc of more than 15 degrees and less than 180 degrees with respect to a center of the projected cushioning member.
2. A midsole including a cushioning structure according to claim 1, wherein the lead angle is set within a range of 35 degrees to 60 degrees.
3. A midsole including a cushioning structure according to claim 1, wherein the outer peripheral surface of the cushioning portion is formed to be taper-shaped.
4. A midsole including a cushioning structure, which is provided between an outer sole and an upper and is suitable for absorbing a shock of landing, wherein:
the cushioning member includes a bottom surface, the bottom surface lying on a horizontal plane and having a center on the horizontal plane inside a outline of the bottom surface;
each of the grooves has substantially a same lead angle between the groove and the bottom surface;
each of the grooves subtends an arc of more than 15 degrees and less than 180 degrees with respect to the center of the bottom surface.
RELATED APPLICATIONS This application is a continuation application of U.S. Ser. No. 10/780,257 filed on Feb. 18, 2004, now U.S. Pat. No. 7,082,699, which is a continuation application of U.S. Ser. No. 10/132,013 filed on Apr. 25, 2002, now U.S. Pat. No. 6,789,333, which claims the foreign priority of Japanese application Serial Number 2001-141157 filed on May 11, 2001. The entire disclosures of these patents and applications are incorporated herein by reference.
In the invention, the “midsole” is provided between an outer sole and an upper and has the cushioning function. The whole midsole may be integrally formed, or may be constructed by assembling a plurality of parts. Besides, the cushioning portion may be integrally formed with a midsole body, or may be constructed by a part different from the midsole body
In the right foot cushioning part 1R of FIGS. 5( a), 5(d) and 5(e), several (for example, four to eight) helical first and second grooves 11 and 12 along the rotating direction of a right-hand screw are formed on the outer peripheral surface 10 and the inner peripheral surface 15, respectively. On the other hand, in the left foot cushioning part 1L of FIGS. 5( b) and 5(c), several helical first and second grooves 11 and 12 along the rotating direction of a left-hand screw are formed on the outer peripheral surface 10 and the inner peripheral surface 15, respectively That is, the respective grooves 11 and 12 are obliquely formed so as to rotate around a substantially vertical axial line V as they descend.
The range α in which each of the first grooves 11 is formed is set to a value larger than the range of 15 degrees around the axial line V and smaller than the range of 90 degrees around the axial line V In this case, in general, a rotating angle β from one end of a center line Lc of the one groove 11 to the other end is set to about 5 degrees to 60 degrees. The rotating angle β is the angle that the helical line which is the center line Lc of the one groove 11 rotates around the point O from the upper end of the groove 11 to the lower end of the groove 11.
Particularly, the range α of the groove 11, 12 is set to 15 degrees to 90 degrees (rotation angle β is 5 degrees to 60 degrees). That is, since the cushioning part 1R including the grooves 11 and 12 does not have a shape like a screw, but has a shape like a helical gear (helical bevel gear), when the compression deformation is vertically applied to the part 1R, the part 1R is twisted around the vertical axial line V, and as a result, the shear deformation is generated in the inside of the part 1R.
Incidentally, in the case where the cushioning part having such a shape as is obtained by superposing the truncated cones as shown in FIGS. 11( d) and 11(e) is formed, an average value of the diameter from the upper end surface 16 to the lower end surface 17 is set to be not lower than the value of the height H.
Incidentally, in the case where the hardness of the cushioning part 1E is high, the range a and the rotation angle β of FIG. 5( b) can be made large. For example, in the case where EVA or the like having higher hardness than gel is adopted, the range α can be set within the range of 15 degrees to 180 degrees, and in this case, the rotation angle β is generally set to about 5 degrees to 150 degrees.
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IiShoeUS7941940Dec 14, 2010May 17, 2011Skechers U.S.A., Inc. IiShoeUS8621765Dec 9, 2009Jan 7, 2014Red Wing Shoe Company, Inc.Molded insole for welted footwearUS20100275471 *Nov 4, 2010Skechers U.S.A., Inc. IiShoeUS20120260525 *May 26, 2011Oct 18, 2012Ls Networks Corporation LimitedCushion member and a shoe insole comprising the same* Cited by examinerClassifications U.S. Classification36/28, 36/37, 36/35.00R, 36/31International ClassificationA43B13/16, A43B13/40, A43B13/18Cooperative ClassificationA43B13/186, A43B13/16, A43B7/1425European ClassificationA43B13/16, A43B7/14A20B, A43B13/18A5Legal EventsDateCodeEventDescriptionAug 8, 2006ASAssignmentOwner name: ASICS CORPORATION, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NISHIWAKI, TSUYOSHI;KAYANO, TOSHIKAZU;MITSUI, SHIGEYUKI;REEL/FRAME:018069/0046Effective date: 20020417Jan 19, 2011FPAYFee paymentYear of fee payment: 4Jan 21, 2015FPAYFee paymentYear of fee payment: 8RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services