US3813124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety prop for dump truck bodies
Assignee: JONES CONSTRUCTION CO J
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Filing: 1972-12-27
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Granted: 1974-05-28
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Expires: 1992-12-27
Abstract
Abstract A safety promotion prop for use on a tiltably hinged dump truck body and adapted for use while equipment maintenance and servicing work is being taken care of by a mechanic or workman. It comprises a channel-shaped mounting fixture or bracket which is operatively bolted or otherwise mounted in a prescribed functioning position, that is, on the surface of a member of the underframe of a dump body. The open-bottom of the channel portion of this fixture (or bracket) embodies spaced flanges joined by a web portion. An elongated strut (leg or equivalent support) provides a prop and has an upper end pivotally bolted between the flanges. The other or lower end is free and the median portion carries a suitable chain which is adapted to be hitched to a fixed storing hook. A strut erecting, positioning and seating bracket is fixedly mounted on a prescribed surface of the usual sub-frame of the truck''s chassis frame. This bracket has a depending mounting cleat whose upper end is provided with a laterally projecting U-shaped member, herein described as a stirrup, and which serves to receive and retentively seat the coacting end of the strut when serving as a prop.
Inventors
- 👤 D Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:59
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/04; B60P1/28; B60P1/283
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
199 words
For manually controllable use while equipment maintenance and servicing work are being attended to by a mechanic, safety support means for installation between the usual underframe of a hingedly mounted dump body and the subframe of a wheel-supported truck chassis frame comprising, an elongated rigid strut constituting a temporarily applicable safety prop, adapter means for said strut adapted to be mounted on an accessible retaining surface of a member of said underframe, said strut having an upper end pivotally mounted on said adapter means, the lower end of said strut being manually raisable and lowerable and having storing means for detachably connecting said lower end to a component of said underframe when said strut is stored and not being used, and strut erecting, positioning and retaining means fixedly mounted on an accessible surface of the subframe of said chassis frame, said lower end being retentively seatable on said erecting and retaining means, said strut erecting, positioning and retaining means comprising a bracket adapted to be fixedly mounted on said subframe, said bracket embodying a substantially U-shaped strut seating stirrup provided with an integral depending cleat adapted to be superimposed upon and fastened to a frame member of said subframe.
Claim 2
Dependent Claim
199 words
For manually controllable use while equipment maintenance and servicing work are being attended to by a mechanic, safety support means for installation between the usual underframe of a hingedly mounted dump body and the subframe of a wheel-supported truck chassis frame comprising, an elongated rigid strut constituting a temporarily applicable safety prop, adapter means for said strut adapted to be mounted on an accessible retaining surface of a member of said underframe, said strut having an upper end pivotally mounted on said adapter means, the lower end of said strut being manually raisable and lowerable and having storing means for detachably connecting said lower end to a component of said underframe when said strut is stored and not being used, and strut erecting, positioning and retaining means fixedly mounted on an accessible surface of the subframe of said chassis frame, said lower end being retentively seatable on said erecting and retaining means, said strut erecting, positioning and retaining means comprising a bracket adapted to be fixedly mounted on said subframe, said bracket embodying a substantially U-shaped strut seating stirrup provided with an integral depending cleat adapted to be superimposed upon and fastened to a frame member of said subframe.
Claim 3
Dependent Claim
62 words
The safety support means defined in and according to claim 1, and wherein said stirrup has a forward upper end portion rising to a level above the level of the coordinating rearward upper end, whereby to provide a strut limit stop and which when forcibly struck by the down and forwardly swinging lower end of the strut produces an audible signalling sound.
Claim 4
Dependent Claim
44 words
The safety support means defined in and according to claim 2, and wherein the concaved seat portion of said stirrup is bridged by a fixed insert which serves as a guard and assists in piloting and maintaining the strut iN its given propping position.
Claim 5
Dependent Claim
74 words
The safety support means defined in and according to claim 1, and wherein said adapter means comprises a channel-shaped fixture embodying spaced parallel flanges between which the upper end of said strut is fitted, and said strut comprising a hollow leg whose upper end is confined in the channel portion between said flanges and is pivotally joined thereto by an assembling and pivoting bolt secured to the respective flanges and bridging said channel portion.
Claim 6
Dependent Claim
55 words
The safety support means defined in and according to claim 4, and wherein the means for storing said strut comprises a chain carried by a median portion of said strut and having free links which are capable of being detachably connected to a coacting chain holding hook fixed on a predetermined surface of said underframe.
Claim 7
Dependent Claim
155 words
A safety prop for a tiltably hinged dump truck body comprising an open bottomed channel-shaped fixture designed and adapted to be operatively bolted in a predetermined serviceable position on the surface of the underframe of a dump body, the open-bottom channel portion of said fixture embodying spaced parallel flanges joined by a web, an elongated rigid strut providing a prop and having one end nested in the channel portion and pivotally bolted between said flanges, the other end of said strut being free and the intermediate portion having an attached chain adapted to be detachably hitched to a fixed strut storing hook, and a strut erecting, positioning and retaining bracket designed and adapted to be fixedly mounted on a predetermined surface of the subframe of a truck chassis, said bracket embodying a mounting cleat having an upper end provided with a U-shaped stirrup capable of receiving and retentively seating the free end of said strut.
Claim 8
Dependent Claim
155 words
A safety prop for a tiltably hinged dump truck body comprising an open bottomed channel-shaped fixture designed and adapted to be operatively bolted in a predetermined serviceable position on the surface of the underframe of a dump body, the open-bottom channel portion of said fixture embodying spaced parallel flanges joined by a web, an elongated rigid strut providing a prop and having one end nested in the channel portion and pivotally bolted between said flanges, the other end of said strut being free and the intermediate portion having an attached chain adapted to be detachably hitched to a fixed strut storing hook, and a strut erecting, positioning and retaining bracket designed and adapted to be fixedly mounted on a predetermined surface of the subframe of a truck chassis, said bracket embodying a mounting cleat having an upper end provided with a U-shaped stirrup capable of receiving and retentively seating the free end of said strut.
Claim 9
Dependent Claim
62 words
The safety support means defined in and according to claim 6, and wherein said stirrup has a forward upper end portion rising to a level above the level of the corresponding rearward upper end, whereby to provide a strut limit stop and which when forcibly struck by the down and forwardly swinging lower end of the strut produces an audible signalling sound.
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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |