US3905413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubeless tire changer
Assignee: Individual
•
Filing: 1973-08-30
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Granted: 1975-09-16
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Expires: 1993-08-30
Abstract
Abstract A machine for removing and mounting tires comprising a tire iron rotated by a reciprocating source of power and an adjustable rim clamping device mounted on the same shaft that rotates the tire iron.
Inventors
- 👤 Clifford C Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:22
CPC Classifications
B; B60; B60C; B60C25/00; B60C25/01; B60C25/05; B60C25/132
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
360 words
In an apparatus for breaking a bead between a tire and a rim, said apparatus including a frame, reciprocating power means for breaking said bead, an apparatus for mounting and demounting said tire and including a tire iron having first and second opposed end portions, the improvement comprising: a horizontally extending shaft; means mounting said shaft to said frame for rotational movement of the shaft; means, including flexible interconnecting means, connecting said power means to said shaft for rotational movement of the shaft in response to the movement of the reciprocal power means; a plate member; means mounting said plate member on said frame for rotational movement of the plate member; an adjusting member; means mounting said adjusting member on said frame for movement of the adjusting member in a first direction in which said plate member is rotated in one direction and for movement of the adjusting member in a second direction in which said plate member is rotated in another direction opposite of said one direction; rim clamping means including a plurality of elongated arm members each having first and second opposed end portions; means mounting said first end portion of each of said arm members to said plate member for simultaneous extension of the arm members in response to said rotational movement of said plate member in said one direction and for simultaneous retraction of the arm members in response to said rotational movement of said plate member in said other direction opposite of said one direction; means for positioning said tire and rim in an upright position adjacent said rim clamping means; gripping means on said second end portion of each of said arm members for locking said Tire rim in said upright position upon the retraction of said arm members; and means removably mounting said tire iron to said shaft for rotational movement of the tire iron in response to said rotational movement of said shaft in which said first end portion of said tire iron is used to demount said tire from said rim and in which said second end portion of said tire iron is used to mount said tire to said rim.
Claim 2
Dependent Claim
360 words
In an apparatus for breaking a bead between a tire and a rim, said apparatus including a frame, reciprocating power means for breaking said bead, an apparatus for mounting and demounting said tire and including a tire iron having first and second opposed end portions, the improvement comprising: a horizontally extending shaft; means mounting said shaft to said frame for rotational movement of the shaft; means, including flexible interconnecting means, connecting said power means to said shaft for rotational movement of the shaft in response to the movement of the reciprocal power means; a plate member; means mounting said plate member on said frame for rotational movement of the plate member; an adjusting member; means mounting said adjusting member on said frame for movement of the adjusting member in a first direction in which said plate member is rotated in one direction and for movement of the adjusting member in a second direction in which said plate member is rotated in another direction opposite of said one direction; rim clamping means including a plurality of elongated arm members each having first and second opposed end portions; means mounting said first end portion of each of said arm members to said plate member for simultaneous extension of the arm members in response to said rotational movement of said plate member in said one direction and for simultaneous retraction of the arm members in response to said rotational movement of said plate member in said other direction opposite of said one direction; means for positioning said tire and rim in an upright position adjacent said rim clamping means; gripping means on said second end portion of each of said arm members for locking said Tire rim in said upright position upon the retraction of said arm members; and means removably mounting said tire iron to said shaft for rotational movement of the tire iron in response to said rotational movement of said shaft in which said first end portion of said tire iron is used to demount said tire from said rim and in which said second end portion of said tire iron is used to mount said tire to said rim.
Claim 3
Dependent Claim
93 words
An improvement as set forth in claim 1 wherein said means connecting said power means to said shaft for rotational movement comprises: a lever connected to said flexible interconnecting means; means rotatably mounting said lever for movement between an unoperated position and an operated position displaced from said unoperated position; a gear; means for fixing said gear to said shaft; a pawl; means operably mounting said pawl to said lever for engagement with said gear; and, biasing means on said lever for returning the lever from said operated position to said unoperated position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |