US4728242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle restraint having downwardly facing hook
Assignee: KELLEY CO Inc
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Filing: 1986-04-14
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Granted: 1988-03-01
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Expires: 2006-04-14
Abstract
Abstract A vehicle restraint to prevent a truck, or other vehicle, from accidentally pulling away from a loading dock during a loading operation. The vehicle restraint includes a pair of spaced vertical guide tracks mounted on the front face of the dock and a slide is mounted for movement within the tracks. The slide has an extension that extends outwardly from the dock between the guide tracks and a restraining member, such as a hook, is pivotally connected to the extension about a generally vertical axis, so that the restraining member can be pivoted from a storage position, where the restraining member is generally parallel to the front face of the dock to an operating position where the restraining member extends outwardly from the dock. The restraining member is formed with a notch or recess in its lower surface, which is adapted to engage the ICC bar at the rear of the truck. In operation the restraining member is pivoted from the storage position to the operative position and dropped downwardly by gravity into engagement with the ICC bar to thereby prevent the truck from accidentally pulling away from the loading dock.
Inventors
- 👤 Kjell I. Erlandsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:21
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/003
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
189 words
A vehicle restraint for preventing accidental movement of a vehicle away from a fixed structure, comprising vertical guide means mounted on a vertical surface of said structure, a slide having a non-circular erase-section mounted for sliding vertical movement in said guide means and having a portion extending outwardly beyond said guide means, said slide being fixed against rotational movement relative to said guide means at all vertical positions of said slide, a restraining member pivotally connected to said portion about a generally vertical pivot axis, said restraining member being constructed and arranged to pivot relative to said slide from a first storage position located outwardly of said guide means and generally parallel to said structure to a second operating position where said restraining member extends outwardly from the structure, and means on said restraining member for receiving an implement to manually effect vertical or pivotal movement of said restraining member relative to said slide, said restraining member having a notch in its lower surface disposed to engage an abutment on said vehicle, engagement of said notch with said abutment preventing accidental movement of said vehicle away from said structure.
Claim 2
Dependent Claim
189 words
A vehicle restraint for preventing accidental movement of a vehicle away from a fixed structure, comprising vertical guide means mounted on a vertical surface of said structure, a slide having a non-circular erase-section mounted for sliding vertical movement in said guide means and having a portion extending outwardly beyond said guide means, said slide being fixed against rotational movement relative to said guide means at all vertical positions of said slide, a restraining member pivotally connected to said portion about a generally vertical pivot axis, said restraining member being constructed and arranged to pivot relative to said slide from a first storage position located outwardly of said guide means and generally parallel to said structure to a second operating position where said restraining member extends outwardly from the structure, and means on said restraining member for receiving an implement to manually effect vertical or pivotal movement of said restraining member relative to said slide, said restraining member having a notch in its lower surface disposed to engage an abutment on said vehicle, engagement of said notch with said abutment preventing accidental movement of said vehicle away from said structure.
Claim 3
Dependent Claim
31 words
The vehicle restraint of claim 1, wherein said notch is bordered by a generally vertical surface spaced outwardly from said pivot axis when said restraining member is in said operating position.
Claim 4
Dependent Claim
44 words
The vehicle restraint of claim 1, and including stop means fixed in relation to said guide means and disposed to be engaged by said restraining member when said restraining member is in said first position to hold said restraining member in said first position.
Claim 5
Dependent Claim
20 words
The vehicle restraint of claim 3, wherein said stop means is spaced beneath the upper end of said guide means.
Claim 6
Dependent Claim
24 words
The vehicle restraint of claim 1, wherein said guide means comprises a pair of spaced guide tracks, said portion extending between said guide tracks.
Claim 7
Dependent Claim
200 words
A vehicle restraint for preventing accidental movement of a truck away from a loading dock during a loading operation, comprising a pair of spaced vertical guide tracks mounted on a front face of a dock, a slide having a generally rectangular cross sectional configuration mounted for sliding movement in said guide tracks and having a portion extending outwardly between said spaced guide tracks, restraining means having a generally horizontal inner section and having an outer section extending downwardly from the outer end of said inner section, and vertical pivot means for pivotally connecting the inner end of said inner section to said portion, whereby said restraining means can be freely pivoted relative to said slide from a first storage position located outwardly of said guide tracks and generally parallel to said front face to a second operating position where said restraining means extends outwardly from said face, said restraining means disposed to be lowered by gravity to effect engagement of said inner section with an ICC bar of said truck, said downwardly extending outer section being constructed and arranged to prevent movement of said truck away from said loading dock when said inner section is engaged with said ICC bar.
Claim 8
Dependent Claim
200 words
A vehicle restraint for preventing accidental movement of a truck away from a loading dock during a loading operation, comprising a pair of spaced vertical guide tracks mounted on a front face of a dock, a slide having a generally rectangular cross sectional configuration mounted for sliding movement in said guide tracks and having a portion extending outwardly between said spaced guide tracks, restraining means having a generally horizontal inner section and having an outer section extending downwardly from the outer end of said inner section, and vertical pivot means for pivotally connecting the inner end of said inner section to said portion, whereby said restraining means can be freely pivoted relative to said slide from a first storage position located outwardly of said guide tracks and generally parallel to said front face to a second operating position where said restraining means extends outwardly from said face, said restraining means disposed to be lowered by gravity to effect engagement of said inner section with an ICC bar of said truck, said downwardly extending outer section being constructed and arranged to prevent movement of said truck away from said loading dock when said inner section is engaged with said ICC bar.
Claim 9
Dependent Claim
47 words
The vehicle restraint of claim 6, and including an abutment disposed on the outer surface of one of said guide tracks and disposed to support said restraining means in the storage position, said abutment being spaced a substantial distance beneath the upper ends of said guide tracks.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-01 | 1991-08-31 | 1992-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-01 | 1995-08-31 | 1996-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-01 | 1999-08-31 | 2000-03-01 | $7700.00 | Window Closed / Lapsed |