Patent US4165906A successfully refreshed from Google Patents.
US4165906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Track shoe having replaceable pad
Assignee: United States Department of the Army
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Filing: 1978-02-15
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Granted: 1979-08-28
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Expires: 1998-02-15
Abstract
Abstract An endless track for a tracked vehicle comprising a series of track shoes,ach having a cavity therein for removable reception of an elastomeric terrain-engaging pad or removable grouser, each pad or grouser being locked within its cavity by a mechanism which includes a swingable latch element having an inturned free end adapted to hook over one edge of the shoe to prevent outward dislocation of the pad from the cavity.
Inventors
- 👤 Joseph O. Fix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:45
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/26; B62D55/27
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
238 words
An endless track for a tracked vehicle, comprising a number of shoes hingedly connected together about axes extending normal to the track path; each shoe having a first major face thereof presented to the road wheels, a second major face thereof directed toward the terrain, and at least one outer side surface joining said first and second faces; each shoe having at least one cavity in its second face; an elastomeric resilient pad removably fitting within each cavity, each pad being thicker than the depth of the cavity whereby the terrain is contacted by the exposed face of the pad rather than the second face of the shoe; each cavity being remote from the outer side surface of the shoe so that the cavity side surfaces prevent the pad from shifting out of the cavity parallel to the shoe second face; and means for detachably locking each pad against movement out of the cavity normal to the shoe second face; said locking means comprising a latch element swingably connected to the pad at one of its side edges; the shoe having a notch therein connecting the cavity and the shoe outer side surface whereby the latch element is enabled to swingably move through said notch to a position extending along the shoe side surface; the free end of the latch element being inturned to hook over one edge of the shoe, thereby locking the pad within the cavity.
Claim 2
Dependent Claim
238 words
An endless track for a tracked vehicle, comprising a number of shoes hingedly connected together about axes extending normal to the track path; each shoe having a first major face thereof presented to the road wheels, a second major face thereof directed toward the terrain, and at least one outer side surface joining said first and second faces; each shoe having at least one cavity in its second face; an elastomeric resilient pad removably fitting within each cavity, each pad being thicker than the depth of the cavity whereby the terrain is contacted by the exposed face of the pad rather than the second face of the shoe; each cavity being remote from the outer side surface of the shoe so that the cavity side surfaces prevent the pad from shifting out of the cavity parallel to the shoe second face; and means for detachably locking each pad against movement out of the cavity normal to the shoe second face; said locking means comprising a latch element swingably connected to the pad at one of its side edges; the shoe having a notch therein connecting the cavity and the shoe outer side surface whereby the latch element is enabled to swingably move through said notch to a position extending along the shoe side surface; the free end of the latch element being inturned to hook over one edge of the shoe, thereby locking the pad within the cavity.
Claim 3
Dependent Claim
42 words
The endless track of claim 1 said first face of each shoe having a socket therein defining a fulcrum point for a lever that is used to pry the inturned end of the latch element out of locking engagement with the shoe.
Claim 4
Dependent Claim
51 words
The endless track of claim 1 said latch element being dimensioned so that when it is in the locked position the extreme tip of its free end is located approximately on an imaginary line that is normal to the first major face of the shoe and intersects the aforementioned fulcrum point.
Claim 5
Dependent Claim
68 words
The endless track of claim 1 wherein an intermediate section of the swingable latch element has a V shape, whereby a hammer blow on the apex of said V shaped intermediate section causes the arms of the V to momentarily spread apart for elongating the latch element, thereby permitting the inturned free end of the latch to climb over the edge of the shoe to a pad-locking position.
Claim 6
Dependent Claim
40 words
The endless track of claim 4 the free end of the latch element having an extreme tip (66) that is oriented to act as a cam while the latch element free end is climbing over the edge of the shoe.
Claim 7
Dependent Claim
62 words
The endless track of claim 1 the outer side surface of the shoe having a recess (70) therein communicating the aforementioned notch with the aforementioned edge of the shoe, said recess being dimensioned to receive the latch element when said element is in its locked position so that the latch element is disposed inwardly from the plane of the shoe outer surface.
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) | 1982-08-27 | 1983-02-26 | 1983-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-27 | 1987-02-26 | 1987-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-27 | 1991-02-26 | 1991-08-28 | $7700.00 | Window Closed / Lapsed |