# US 2013/0152429 A1 · Shoe with protrusions and securing portions > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0152429 A1 - Document ID: US20130152429A1 - Status: Published application - Kind: A1 - Application number: 13/758,690 - Filed: 2013-02-04 - Published: 2013-06-20 - Earliest claimed: 2007-05-22 - Assignees: K-Swiss Inc. - Inventors: Jeffrey A. SINK - Web page: https://patentgrep.com/patent/US20130152429A1 ## CPC - A43B 7/32: with shock-absorbing means (resilient soles A43B13/18) - A43B 13/145: {Convex portions, e.g. with a bump or projection, e.g. 'Masai' type shoes} - A43B 13/181: {Resiliency achieved by the structure of the sole} - A43B 13/206: {provided with tubes or pipes or tubular shaped cushioning members} - A43B: CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR ## Abstract A shoe sole structure includes a midsole body that extends from the heel region to the forefoot region of a shoe and an outsole that is attached to the midsole body. The outsole includes a plurality of protrusions arranged transversely to the longitudinal axis of the shoe, while extending at least partially between the lateral edge and the medial edge of the shoe. One or more of the half tube structures can include grooves and/or projections to enhance traction on a contact surface. ## Claims ### Claim 1 A shoe comprising: (a) an upper; (b) a first sole portion, said first sole portion including: (i) a bottom; (ii) a plurality of recesses which are recessed from the bottom; (c) a second sole portion, said second sole portion including: (i) a plurality of securing portions which are secured in the recesses of the first sole portion; (ii) a plurality of protrusions extending below the plurality of securing portions, wherein the plurality of protrusions each include a wall extending along a perimeter of each protrusion and defining each protrusion, and wherein each protrusion includes a cavity therein defined within said wall such that a plurality of cavities are defined within the plurality of protrusions; wherein the shoe includes a longitudinal direction extending in a direction from a heel region to a forefoot region, and a transverse direction extending transverse to said longitudinal direction, and wherein the plurality of cavities extend in the transverse direction, and further wherein the cavities include first and second ends which are open to outside of the shoe. ### Claim 2 (depends on 1) A shoe according to claim 1, wherein the plurality of protrusions include at least two protrusions in the heel region, and at least two protrusions in the forefoot region, and wherein the shoe further includes an arch region between the forefoot and heel regions and which does not have protrusions. ### Claim 3 (depends on 2) A shoe according to claim 2, wherein in said heel region one of said securing portions extends between and connects a first of said at least two protrusions to a second of said at least two protrusions; and wherein in said forefoot region another of said securing portions extends between and connects a first of said at least two protrusions to a second of said at least two protrusions. ### Claim 4 (depends on 3) A shoe according to claim 3, wherein said forefoot region further includes a third protrusion, and wherein a further securing portion extends between and connects said third protrusion to said second protrusion in said forefoot region. ### Claim 5 (depends on 4) A shoe according to claim 4, wherein at least when the shoe contacts a ground surface a bottom portion of at least one of said protrusions is substantially flat. ### Claim 6 (depends on 5) A shoe according to claim 5, wherein at least some of the walls of the plurality of protrusions have at least one groove therein. ### Claim 7 (depends on 6) A shoe according to claim 6, wherein the at least one groove is on an exterior surface of at least some of the walls. ### Claim 8 (depends on 1) A shoe according to claim 1, wherein at least some of the walls of the plurality of protrusions have at least one groove therein. ### Claim 9 (depends on 8) A shoe according to claim 8, wherein the at least one groove is on an exterior surface of at least some of the walls. ### Claim 10 (depends on 1) A shoe according to claim 1, wherein at least when the shoe contacts a ground surface a bottom portion of at least one of said protrusions is substantially flat. ### Claim 11 (depends on 10) A shoe according claim 10, wherein the bottom portion of at least one of the protrusions which is substantially flat includes a substantially flat inner surface inside of said cavity and a substantially flat outer surface on an exterior of the protrusion, and further wherein the wall of the protrusion includes a first side wall extending upwardly from said bottom portion and a second side wall extending upwardly from said bottom portion with said bottom portion between said first and second side walls. ### Claim 12 A shoe comprising: (a) an upper; (b) a first sole portion, said first sole portion including a bottom having a heel region and a forefoot region, and wherein the first sole portion further includes: (i) a first recess which is recessed from said bottom in said heel region; and (ii) a second recess which is recessed from said bottom in said forefoot region; (c) a second sole portion, said second sole portion including a plurality of protrusions, each of the plurality of protrusions defined by a wall having a cavity therein, and wherein the second sole portion and the plurality of protrusions include: (i) a first protrusion in said heel region; (ii) a second protrusion in said heel region; (iii) a first securing portion extending between and connecting said first protrusion and said second protrusion, and wherein said first securing portion is secured in said first recess of said first sole portion. (iv) a third protrusion is said forefoot region; (v) a fourth protrusion in said forefoot region; and (vi) a second securing portion extending between and connecting said third protrusion and said fourth protrusion, and wherein said second securing portion is secured in said second recess of said first sole portion. ### Claim 13 (depends on 12) A shoe according to claim 12, wherein said first sole portion further includes a third recess in said forefoot region; and wherein said second sole portion further includes: (vii) a fifth protrusion in said forefoot region; and (viii) a third securing portion extending between and connecting said fourth protrusion and said fifth protrusion, and wherein said third securing portion is secured in said third recess of said first sole portion. ### Claim 14 (depends on 13) A shoe according to claim 13, wherein the shoe includes a longitudinal direction extending in a direction from the heel region to the forefoot region, and a transverse direction extending transverse to said longitudinal region, and wherein the cavities of the protrusions extend in the transverse direction and include first and second ends which are open to outside of the shoe. ### Claim 15 (depends on 12) A shoe according to claim 12, wherein at least when the shoe contacts a ground surface a bottom portion of at least one of said protrusions is substantially flat. ### Claim 16 (depends on 15) A shoe according claim 15, wherein the bottom portion of at least one of the protrusions which is substantially flat includes a substantially flat inner surface inside of said cavity and a substantially flat outer surface on an exterior of the protrusion, and further wherein the wall of the protrusion includes a first side wall extending upwardly from said bottom portion and a second side wall extending upwardly from said bottom portion with said bottom portion between said first and second side walls. ### Claim 17 (depends on 12) A shoe according to claim 12, wherein at least some of the walls of the plurality of protrusions have at least one groove therein.