Impact absorbing gymnastic mat

• US 20070173379A1
• Filed: 01/04/2007
• Published: 07/26/2007
• Est. Priority Date: 07/09/2004
• Status: Abandoned Application

• Current Assignee: Ashimori Industry Company Limited, NGC Corp (Vistra Corp.)
• Original Assignee: Ashimori Industry Company Limited, NGC Corp (Vistra Corp.)
• Inventors: Harinishi, Atsushi, Kita, Katsuo
• Application Number:
  US11/649,375
• Publication Number:
  US 20070173379A1
• Time in Patent Office: Days
• US Class Current: 482/23
• CPC Class Codes: A63B 6/00 Mats or the like for absorbing shocks for jumping, gymnastics or the like
• CPC Class Codes: A63B 6/02 for landing, e.g. for pole vaulting

Abstract

In some preferred embodiments, an impact absorbing gymnastic mat 1 includes a mat body 10 having an air-tight space 14 therein, and an openable and closable air supply and discharge port 22 for supplying and discharging air into and from the air-tight space 14 of the mat body 10. The air supply and discharge port 22 is provided at a prescribed portion of the mat body 1. The mat body 1 includes a joined member 11 and an air impermeable external sheet 20 and 21 encasing the joined member 11 so as to form the air-tight space 14. The joined member 11 includes a pair of internal sheets 12a and 12b opposed at a prescribed distance and a plurality of connecting threads 13 connecting opposed surfaces of the internal sheets 12a and 12b.

Claims

1. An impact absorbing gymnastic mat, comprising:

a mat body having an air-tight space therein; and

an openable and closable air supply and discharge port for supplying and discharging air into and from the air-tight space of the mat body, the air supply and discharge port being provided at a prescribed portion of the mat body,

wherein the mat body includes a joined member and an air impermeable external sheet encasing the joined member so as form the air-tight space; and

wherein the joined member includes a pair of internal sheets opposed at a prescribed distance and a plurality of connecting threads connecting opposed surfaces of the internal sheets.

2. The impact absorbing gymnastic mat as recited in claim 1, wherein the internal sheet is a woven fabric.

3. The impact absorbing gymnastic mat as recited in claim 2, wherein the connecting thread is weaved into the fabric.

4. The impact absorbing gymnastic mat as recited in claim 1, wherein a density of the connecting threads is 1 to 5 pieces/cm².

5. The impact absorbing gymnastic mat as recited in claim 2, wherein a density of the connecting threads is 1 to 5 pieces/cm².

6. The impact absorbing gymnastic mat as recited in claim 3, wherein a density of the connecting threads 1 to 5 pieces/cm².

7. The impact absorbing gymnastic mat as recited in claim 1, wherein the external sheet is made of urethane series resin.

8. The impact absorbing gymnastic mat as recited in claim 1, wherein the external sheet is adhered to a surface of the mat body.

9. The impact absorbing gymnastic mat as recited in claim 2, wherein the external sheet is adhered to a surface of the mat body.

10. The impact absorbing gymnastic mat as recited in claim 3, wherein the external sheet is adhered to a surface of the mat body.

11. The impact absorbing gymnastic mat as recited in claim 4, wherein the external sheet is adhered to a surface of the mat body.

12. The impact absorbing gymnastic mat as recited in claim 5, wherein the external sheet is adhered to a surface of the mat body.

13. The impact absorbing gymnastic mat as recited in claim 6, wherein the external sheet is adhered to a surface of the mat body.

14. The impact absorbing gymnastic mat as recited in claim 7, wherein the external sheet is adhered to a surface of the mat body.

15. The impact absorbing gymnastic mat as recited in claim 8, wherein the external sheet is adhered to a surface of the mat body via an auxiliary sheet.

16. The impact absorbing gymnastic mat as recited in claim 8, wherein the external sheet is a raised sheet.

17. An impact absorbing gymnastic mat, comprising:

a mat body having an air-tight space therein; and

an openable and closable air supply and discharge port for supplying and discharging air into and from the air-tight space of the mat body, the air supply and discharge port being provided at a prescribed portion of the mat body,

wherein the mat body includes a pair of opposed upper and lower sheets disposed at a prescribed distance, and a plurality of connecting members connecting opposed surfaces of the upper and lower sheets, and

wherein a density of the connecting members is 1 to 5 pieces/cm².

18. The impact absorbing gymnastic mat as recited in claim 17, wherein the upper and lower sheet are woven fabrics, and wherein the connecting threads are weaved into the fabrics.

19. The impact absorbing gymnastic mat as recited in claim 18, further comprising an external raised sheet adhered to an upper surface of the main body.

20. The impact absorbing gymnastic mat as recited in claim 17, wherein the density of the connecting threads is 2 to 3 pieces/cm².