Flat-tire repair kit

• US 10,639,858 B2
• Filed: 11/01/2016
• Issued: 05/05/2020
• Est. Priority Date: 12/08/2015
• Status: Active Grant

• Current Assignee: Kakuichikasei Co., Ltd.
• Original Assignee: Bridgestone Corporation
• Inventors: Hamatani, Mitsuyoshi
• Primary Examiner(s): McManmon, Mary E
• Assistant Examiner(s): Hakomaki, James R
• Application Number:
  US15/777,308
• Publication Number:
  US 20180333928A1
• Time in Patent Office: 1,281 Days
• Field of Search: 141 38
• CPC Class Codes: B29C 73/025 fed under pressure
• CPC Class Codes: B29C 73/166 Devices or methods for introducing sealing compositions into articles
• CPC Class Codes: B29L 2030/00 Pneumatic or solid tyres or parts thereof conveyor belts B29L2031/7092; drive belts B29L2031/7094; fourdrinier belts B29L2031/733
• CPC Class Codes: B60S 5/04 Supplying air for tyre inflation arrangement of tyre inflating devices on vehicles B60C23/00; tyre pressure gauges G01L17/00 ; pumps actuated by muscle power F04B33/00

Abstract

A flat-tire repair kit of the present invention is provided with a bottle, and a bottle attachment part, wherein a bottle opening part has a sealing member that seals a liquid agent inside the bottle, the bottle opening part or the bottle attachment part has a seal member that establishes liquid-tight connection after the start of relative rotation, the bottle attachment part has a seal-breaking protrusion part that comes in contact with the sealing member to break a seal after the start of establishment of the liquid-tight connection by the seal member, and the bottle opening part engages an attachment-side engaging part of the bottle attachment part after the breakage of the seal of the seal member by the seal-breaking protrusion part to prevent the bottle opening part from performing relative rotation in an opposite rotating direction with respect to the bottle attachment part.

Claims

1. A flat-tire repair kit comprising:

a bottle containing a flat-tire repair solution; and

a bottle attachment portion to which a bottle opening of the bottle is connectable by being relatively rotated to screw the bottle opening and the bottle attachment portion together;

wherein

the bottle opening includes a sealing member configured to seal the solution inside the bottle,

the bottle opening or the bottle attachment portion includes a seal member configured to make a connection of the bottle opening to the bottle attachment portion liquid-tight after the bottle opening starts to be rotated relative to the bottle attachment portion,

the bottle attachment portion includes a sealing-breaker projection configured to contact and break the sealing member after the seal member starts to make the connection liquid-tight, and

the bottle opening includes a bottle-side engagement portion configured to engage with an attachment-side engagement portion, included in the bottle attachment portion, after the sealing-breaker projection breaks the sealing member, so as to prevent the bottle opening from relatively rotating in an opposite rotation direction from a rotation direction when the bottle opening is screwed onto the bottle attachment portion;

the bottle attachment portion includes the attachment-side engagement portion at a smooth open end of the bottle attachment portion; and

the attachment-side engagement portion projects toward an opening side in the rotation axis direction.

2. The flat-tire repair kit of claim 1, wherein

a total rotation angle of relative rotation of the bottle opening relative to the bottle attachment portion a start of the bottle opening and the bottle attachment portion being screwed together until the bottle-side engagement portion and the attachment-side engagement portion are engaged is 100%,

a rotation angle of relative rotation after the start of screwing until the seal member starts to make the connection liquid-tight is 15 to 25% of the total rotation angle,

the rotation angle of relative rotation after the start of screwing until the sealing-breaker projection contacts the sealing member is 20 to 35% of the total rotation angle, and

the rotation angle of relative rotation after the start of screwing until the bottle-side engagement portion and the attachment-side engagement portion start to engage is 60 to 95% of the total rotation angle.

3. The flat-tire repair kit of claim 2, wherein the sealing-breaker projection is a blade with a triangular shape as viewed from a direction orthogonal to a rotation axis direction in which the bottle opening is rotated relative to the bottle attachment portion.

4. The flat-tire repair kit of claim 2, wherein the bottle attachment portion includes 3 or more of the sealing-breaker projections.

5. The flat-tire repair kit of claim 2, wherein a maximum torque produced when the sealing-breaker projection breaks the sealing member is smaller than a maximum torque produced when the bottle-side engagement portion and the attachment-side engagement portion are engaged.

6. The flat-tire repair kit of-claim 1, wherein the sealing-breaker projection is a blade with a triangular shape as viewed from a direction orthogonal to a rotation axis direction in which the bottle opening is rotated relative to the bottle attachment portion.

7. The flat-tire repair kit of claim 6, wherein the sealing-breaker projection includes only a single cutting edge.

8. The flat-tire repair kit of claim 7, wherein the sealing-breaker projection is single-edged wherein the triangular shape of the sealing-breaker projection is asymmetrical, when viewed from the direction orthogonal to the rotation axis direction, relative to a virtual line parallel to the rotation axis direction and passing through the apex of the triangular shape.

9. The flat-tire repair kit of claim 6, wherein the triangular shape of the sealing-breaker projection is asymmetrical, when viewed from the direction orthogonal to the rotation axis direction, relative to a virtual line parallel to the rotation axis direction and passing through the apex of the triangular shape.

10. The flat-tire repair kit of claim 6, wherein

a total rotation angle of relative rotation of the bottle opening relative to the bottle attachment portion from a start of the bottle opening and the bottle attachment portion being screwed together until the bottle-side engagement portion and the attachment-side engagement portion are engaged is 100%,

a rotation angle of relative rotation after the start of screwing until the seal member starts to make the connection liquid-tight is 15 to 25% of the total rotation angle,

the rotation angle of relative rotation after the start of screwing until the sealing-breaker projection contacts the sealing member is 20 to 35% of the total rotation angle, and

the rotation angle of relative rotation after the start of screwing until the bottle-side engagement portion and the attachment-side engagement portion start to engage is 60 to 95% of the total rotation angle.

11. The flat-tire repair kit of claim 6, wherein the bottle attachment portion includes 3 or more of the sealing-breaker projections.

12. The flat-tire repair kit of claim 6, wherein the bottle attachment portion includes 3 or more of the sealing-breaker projections.

13. The flat-tire repair kit of claim 6, wherein a maximum torque produced required to break the sealing member by the sealing breaker projection is smaller than a maximum torque produced required to engage the bottle-side engagement portion and the attachment-side engagement portion.

14. The flat-tire repair kit of claim 6, wherein a maximum torque produced when the sealing-breaker projection breaks the sealing member is smaller than a maximum torque produced when the bottle-side engagement portion and the attachment-side engagement portion are engaged.

15. The flat-tire repair kit of claim 1, wherein the bottle attachment portion includes 3 or more of the sealing-breaker projections.

16. The flat-tire repair kit of claim 15, wherein a maximum torque produced when the sealing-breaker projection breaks the sealing member is smaller than a maximum torque produced when the bottle-side engagement portion and the attachment-side engagement portion are engaged.

17. The flat-tire repair kit of claim 1, wherein a maximum torque produced required to break the sealing member by the sealing breaker projection is smaller than a maximum torque produced required to engage the bottle-side engagement portion and the attachment-side engagement portion.

18. The flat-tire repair kit of claim 17,

wherein

a total rotation angle of relative rotation of the bottle opening relative to the bottle attachment portion from a start of the bottle opening and the bottle attachment portion being screwed together until the bottle-side engagement portion and the attachment-side engagement portion are engaged is 100%,

a rotation angle of relative rotation after the start of screwing until the seal member starts to make the connection liquid-tight is 15 to 25% of the total rotation angle,

the rotation angle of relative rotation after the start of screwing until the sealing-breaker projection contacts the sealing member is 20 to 35% of the total rotation angle, and

the rotation angle of relative rotation after the start of screwing until the bottle-side engagement portion and the attachment-side engagement portion start to engage is 60 to 95% of the total rotation angle, and

wherein the sealing-breaker projection is a blade with a triangular shape as viewed from a direction orthogonal to a rotation axis direction in which the bottle opening is rotated relative to the bottle attachment portion.

19. The flat-tire repair kit of claim 17,

wherein

a total rotation angle of relative rotation of the bottle opening relative to the bottle attachment portion from a start of the bottle opening and the bottle attachment portion being screwed together until the bottle-side engagement portion and the attachment-side engagement portion are engaged is 100%,

a rotation angle of relative rotation after the start of screwing until the seal member starts to make the connection liquid-tight is 15 to 25% of the total rotation angle,

the rotation angle of relative rotation after the start of screwing until the sealing-breaker projection contacts the sealing member is 20 to 35% of the total rotation angle, and

the rotation angle of relative rotation after the start of screwing until the bottle-side engagement portion and the attachment-side engagement portion start to engage is 60 to 95% of the total rotation angle, and

wherein the bottle attachment portion includes 3 or more of the sealing-breaker projections.