Patent US4049143A successfully refreshed from Google Patents.
US4049143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer-type vehicle for lifting, transporting, and depositing loads
Assignee: INNOVATION SERVICES CO Oy
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Filing: 1976-07-27
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Granted: 1977-09-20
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Expires: 1996-07-27
Abstract
Abstract A vehicle for lifting, transporting, and depositing a load includes lower and upper substantially U-shaped frames each having a front bar and a pair of side bars extending rearwardly from the front bar, with the front bar of the lower frame capable of being attached to a pulling vehicle, while at least a pair of wheels are connected with the side bars of the lower frame to support the latter during travelling thereof. The upper frame is connected by a suitable connecting structure to the lower frame for movement with respect thereto downwardly to a lower load-receiving position and upwardly to an upper load-transporting position, while a transverse pivot axis is provided for the upper frame so that the latter can turn about this axis during depositing of a load. The two frames define a load-receiving space on opposite sides of which are a pair of expandable and contractable fluid-pressure devices, respectively, each fluid-pressure device being connected to side bars of the lower and upper frames to displace the upper frame between the above positions thereof and to turn the upper frame about the above pivot axis when depositing a load. These fluid-pressure devices expand during movement of the upper frame down to its lower load-receiving position and during turning of the upper frame about the above pivot axis when depositing a load. A structure is provided for releasably holding the pivot axis stationary when the upper frame is turned about the pivot axis during depositing of a load.
Inventors
- 👤 Vesa Hatakka
- 👤 Jussi Sarvela
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:51
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/48; B60P1/04; B60P1/30; B60P1/34
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
385 words
A vehicle for lifting, transporting, and depositing a load, comprising lower frame means of substantially U-shaped configuration having a front transverse bar means adapted to be attached to a pulling vehicle and a pair of opposed side longitudinal bar means connected with and extending rearwardly from said front transverse bar means and defining with the latter a space for accommodating a load, at least a pair of wheels being operatively connected with said pair of opposed side bar means to support said lower frame means during travel thereof, upper frame means also of substantially U-shaped configuration situated at an elevation higher than said lower frame means and being of substantially the same size and configuration as said lower frame means, said upper frame means also having a front transverse bar means and a pair of opposed side bar means connected with said front transverse bar means of said upper frame means and extending rearwardly therefrom for also defining with said lower frame means a space for accommodating a load, connecting means extending between and interconnected with said lower frame means and said upper frame means for connecting said upper frame means to said lower frame means for movement with respect thereto downwardly to a lower load-receiving position and upwardly to an upper load-transporting position, said connecting means also providing for said upper frame means a transverse pivot axis about which said upper frame means turns when carrying out a load-depositing operation, a pair of expandable and contractable fluid-pressure means respectively situated on opposite sides of and beyond the load-accommodating space defined by said upper and lower frame means with each of said fluid-pressure means being operatively connected to a side bar means of said lower frame means and a side bar means of said upper frame means for lowering said upper frame means from said upper load-transporting position thereof down to said lower load-receiving position thereof during expansion of each fluid-pressure means and for turning said upper frame means about said pivot axis during a load-depositing operation also during expansion of each fluid-pressure means, and releasable holding means operatively connected between part of said connecting means and said lower frame means for releasably holding said pivot axis stationary during turning of said upper frame means about said pivot axis when carrying out a load-depositing operation.
Claim 2
Dependent Claim
385 words
A vehicle for lifting, transporting, and depositing a load, comprising lower frame means of substantially U-shaped configuration having a front transverse bar means adapted to be attached to a pulling vehicle and a pair of opposed side longitudinal bar means connected with and extending rearwardly from said front transverse bar means and defining with the latter a space for accommodating a load, at least a pair of wheels being operatively connected with said pair of opposed side bar means to support said lower frame means during travel thereof, upper frame means also of substantially U-shaped configuration situated at an elevation higher than said lower frame means and being of substantially the same size and configuration as said lower frame means, said upper frame means also having a front transverse bar means and a pair of opposed side bar means connected with said front transverse bar means of said upper frame means and extending rearwardly therefrom for also defining with said lower frame means a space for accommodating a load, connecting means extending between and interconnected with said lower frame means and said upper frame means for connecting said upper frame means to said lower frame means for movement with respect thereto downwardly to a lower load-receiving position and upwardly to an upper load-transporting position, said connecting means also providing for said upper frame means a transverse pivot axis about which said upper frame means turns when carrying out a load-depositing operation, a pair of expandable and contractable fluid-pressure means respectively situated on opposite sides of and beyond the load-accommodating space defined by said upper and lower frame means with each of said fluid-pressure means being operatively connected to a side bar means of said lower frame means and a side bar means of said upper frame means for lowering said upper frame means from said upper load-transporting position thereof down to said lower load-receiving position thereof during expansion of each fluid-pressure means and for turning said upper frame means about said pivot axis during a load-depositing operation also during expansion of each fluid-pressure means, and releasable holding means operatively connected between part of said connecting means and said lower frame means for releasably holding said pivot axis stationary during turning of said upper frame means about said pivot axis when carrying out a load-depositing operation.
Claim 3
Dependent Claim
84 words
The combination of claim 1 and wherein each of said fluid-pressure means has an upper end region operatively connected with a side bar means of said upper frame means and a lower end region operatively connected with a side bar means of said lower frame means, said lower end region of each fluid-pressure means being situated forwardly of said upper end region thereof and each fluid-pressure means being inclined downwardly in a forward direction from said upper frame means toward said lower frame means.
Claim 4
Dependent Claim
71 words
The combination of claim 1 and wherein said connecting means includes between said upper and lower frame means on each side of a central vertical plane situated midway between said side bar means of each frame means, a pair of links longitudinally spaced from each other along each frame means and defining a parallelogram linkage therewith, and each fluid-pressure means being situated substantially midway between said links of each parallelogram linkage.
Claim 5
Dependent Claim
209 words
The combination of claim 1 and wherein said connecting means includes a pair of rear links each extending between and pivotally connected with a side bar means of said lower frame means and a side bar means of said upper frame means, said rear links defining with said upper frame means said transverse pivot axis about which said upper frame means turns when carrying out a load-depositing operation, and said releasable holding means including a pair of elongated rods respectively pivotally connected with said rear links adjacent said pivot axis, respectively having lengths substantially greater than said rear links, and respectively extending from said rear links to the region of said pair of side bar means of said lower frame means, and said releasable holding means including at said pair of side bar means of said lower frame means a pair of guide means guiding said rods for movement with respect to said pair of side bar means of said lower frame means, respectively, and a pair of means for releasably locking said pair of rods to said side bar means of said lower frame means, respectively, when said pair of fluid-pressure means expand to turn said upper frame means about said transverse pivot axis during a load-depositing operation.
Claim 6
Dependent Claim
73 words
The combination of claim 1 and wherein said connecting means includes at least one link situated between and pivotally connected with the side bar means of said upper and lower frame means at each side of the load-accommodating space, said fluid-pressure means when displacing said upper frame means from said lower load-receiving position to said upper load-transporting position thereof turning each of said links through and beyond an upright, precisely vertical, dead-center position.
Claim 7
Dependent Claim
76 words
The combination of claim 1 wherein all of said bar means of each frame means are operatively connected with each other for effecting a change in the distance between the side bar means of each frame means for adjusting the width of the load-accommodating space, and adjusting means operatively connected with at least one of said frame means for adjusting the distance between the pairs of side bar means of said upper and lower frame means.
Claim 8
Dependent Claim
57 words
The combination of claim 6 and wherein each of said front transverse bar means includes a pair of end members respectively fixed with the side bar means of each frame means and an intermediate member cooperating telescopically with said end members for effecting the change in the distance between the side bar means of each frame means.
Claim 9
Dependent Claim
59 words
The combination of claim 7 and wherein said adjusting means includes a power means extending between and operatively connected with said end members of one of said front bar means for moving said end members toward and away from each other to effect the adjustment of the distance between the pair of side bar means of each frame means.
Claim 10
Dependent Claim
15 words
The combination of claim 8 and wherein said power means includes a double-acting hydraulic means.
Claim 11
Dependent Claim
25 words
The combination of claim 8 and wherein said power means includes a rotary screw means having a threaded connection with said pair of end members.
Claim 12
Dependent Claim
42 words
The combination of claim 7 and wherein a limiting means is operatively connected with the intermediate and end members of at least one of said front bar means for limiting the extent to which said end members move apart from each other.
Claim 13
Dependent Claim
55 words
The combination of claim 11 and wherein said limiting means includes a part of said intermediate member formed with a longitudinal groove and a pair of pins fixed to said end members and situated in said groove for respectively engaging opposed ends thereof to limit the movement of said end members apart from each other.
Claim 14
Dependent Claim
37 words
The combination of claim 6 and wherein at least one of said frame means carries an indicating means for indicating the adjusted size of the space between the pair of side bar means of each frame means.
Claim 15
Dependent Claim
166 words
The combination of claim 6 and wherein said pair of side bar means of said lower frame means respectively have free rear end regions distant from said front bar means of said lower frame means, and an elongated bar means of adjustable length pivotally connected with the rear end region of one of said side bar means of said lower frame means for turning movement with respect thereto between a position of non-use extending along said one side bar means of said lower frame means and a position of use extending transversely between said rear end regions of said side bar means of said lower frame means, and means for releasably connecting the latter elongated bar means to the rear end region of the other of said side bar means of said lower frame means when said latter elongated bar means is in said position of use thereof, whereby in said position of use of said elongated bar means a further vehicle may be attached thereto.
References Cited (Backward Citations)
US3083850A
Cited
US3468440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |