CN101818477B - Jack-knife bridge and system thereof - Google Patents
Jack-knife bridge and system thereof Download PDFInfo
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- CN101818477B CN101818477B CN201010103733XA CN201010103733A CN101818477B CN 101818477 B CN101818477 B CN 101818477B CN 201010103733X A CN201010103733X A CN 201010103733XA CN 201010103733 A CN201010103733 A CN 201010103733A CN 101818477 B CN101818477 B CN 101818477B
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Abstract
The invention discloses a jack-knife bridge, which comprises a fixed bridge body wedge block, a floating bridge body wedge block, a plurality of intermediate bridge body wedge blocks, a driving device, an upper guy cable, a first lower guy cable and a second lower guy cable, wherein the winding direction for connecting the upper guy cable and the first lower guy cable is opposite to the winding direction for connecting the second lower guy cable and the driving device; and the driving device drives the upper guy cable, the first lower guy cable and the second lower guy cable so as to control the state of the jack-knife bridge. Apart form the advantages of quick transportation and bridging of the jack-knife bridge, the jack-knife bridge provided by the embodiment of the invention has the advantages of an open bridge that the width and headroom of the bridge can be properly adjusted for ships under the bridge so that the ships of different sizes can pass through the bridge; and in addition, the jack-knife bridge has the characteristics of simple structure, rational stress, no need of overmuch hydraulic unit driving and greatly reduced construction cost. The invention also provides a jack-knife bridge system.
Description
Technical field
The present invention relates to bridge design and manufacturing technology field, particularly a kind of jack-knife bridge are installed.
Background technology
Along with the continuous progress of the society continuous development with technology, it is more and more convenient that traffic trip becomes, but simultaneously busy traffic is also had higher requirement for the design of means of transportation and manufacturing.Whether present bridge is movable according to pontic, can be divided into two big types on fixed bridge and portable bridge.The pontic of fixed bridge is fixed, can not be out of shape and move, and makes the working environment and the function relative fixed of fixed bridge.But; Complicacy day by day along with traffic; Not only to consider the vehicle and the pedestrian that on bridge, walk; Also need stay enough width and headroom for the boats and ships under the bridge, and because fixing its width and the headroom to the boats and ships that pass through under the bridge that can't move therefore of the pontic of fixed bridge has comparatively strict restriction.
Therefore in order to overcome the defective of fixed bridge, the designer has proposed the notion of portable bridge again, thus portable bridge under bridge, have large ship through the time can change its structure and stay enough width and headroom for the boats and ships that pass through.At present, portable bridge can be divided into two kinds on open-type bridge and collapsible bridge.The open-type bridge is in order to provide water channel to the air route and to build, and the superstructure design of bridge becomes transportable form, to reach ship through necessary width and headroom.The common form of open-type bridge has at present: bascule bridge, swing bridge, the lift bridge and the bridge etc. that bounces back.When the very not busy and korneforos boats and ships of traffic on the bridge have minority to require headroom very high, can build movable bridge and can reduce access bridge length so that movable bridge is in opening and passes through to make things convenient for the korneforos boats and ships, reduce cost.But the shortcoming of movable bridge is when the open-type bridge is in opening, and pedestrian and vehicle can not pass through, and movable bridge can not transport and set up fast.
Present collapsible bridge is representative with Britain's Fil thunder Axial Folding Bridge, and whole collapsible the rolling of the body of a bridge not only be convenient to transport, set up rapidly, save labor, and operation is easy, therefore militarily also can be used for the fast construction and the transfer of open-air bridge.Yet present collapsible bridge is in level when working, and can not pass through large-scale ship, and folding curling leaned on a plurality of hydraulic pressure units drivings, complex structure, cost height.
Summary of the invention
The present invention is intended to solve at least one of technical problem that exists in the prior art.Particularly solve in the prior art when existing open-type bridge pedestrian and the impassable shortcoming of vehicle and collapsible bridge when being in opening are worked and to pass through large-scale ship and complex structure, the shortcoming that cost is high.
To achieve these goals, the embodiment of the invention has proposed a kind of jack-knife bridge on the one hand, comprising: the fixed bridge body wedge that is connected with ground; The pontic wedge floats; Be connected a plurality of middle pontic wedge between said fixed bridge body wedge and the said unsteady pontic wedge; Drive unit; One end is fixed on said unsteady pontic wedge top, and runs through the last drag-line at all said middle pontic wedge tops, and the said other end of going up drag-line links to each other with said drive unit; One end is fixed on said unsteady pontic wedge bottom, and runs through first downhaul and second downhaul of all said middle pontic wedge bottoms, and the other end of said first downhaul and second downhaul all links to each other with said drive unit; Wherein, said go up that drag-line and said first downhaul and second downhaul be connected with said drive unit around on the contrary, through the state of said drive unit to the said jack-knife bridge of drive controlling of drag-line, said first downhaul and second downhaul on said.
In one embodiment of the invention, said drive unit is fixed on the said fixed bridge body wedge, or is installed on the ground of said fixed bridge body wedge connection.
In one embodiment of the invention, said fixed bridge body wedge is connected through revolute pair with ground, also connects through revolute pair between said fixed bridge body wedge, said unsteady pontic wedge and the said a plurality of middle pontic wedge.
In one embodiment of the invention; Said drive unit comprises first drive motors and by the first drag-line rotating shaft of said first drive motor drives; The said drag-line of going up all is connected on the said first drag-line rotating shaft with said first downhaul and second downhaul, and on said drag-line and said first downhaul and second downhaul around on the contrary.
In one embodiment of the invention, said drive unit further comprises: first reducer, said first reducer are connected with the first drag-line axle with first drive motors respectively.
In one embodiment of the invention; Said drive unit comprises second drive motors and by the second drag-line rotating shaft of said second drive motor drives; And the 3rd drive motors and by the 3rd drag-line rotating shaft of said the 3rd drive motor drives; The said drag-line of going up is connected on the said second drag-line rotating shaft, and said first downhaul and second downhaul are connected on said the 3rd drag-line rotating shaft, and said go up drag-line and said first downhaul and second downhaul around on the contrary.
In one embodiment of the invention, said drive unit further comprises: second reducer, said second reducer are connected with the second drag-line axle with second drive motors respectively; The 3rd reducer, said the 3rd reducer are connected with the 3rd drag-line axle with the 3rd drive motors respectively.
In one embodiment of the invention, the controller that also comprises said second drive motor drives of control and the 3rd drive motor drives.
In one embodiment of the invention, the upper and lower of said pontic wedge all has wedge-type shape.
In one embodiment of the invention, the wedge-type shape of said pontic wedge bottom is wider than the wedge-type shape on said pontic wedge top.
In one embodiment of the invention; Comprise through the state of said drive unit to the said jack-knife bridge of drive controlling of said last drag-line, said first downhaul and second downhaul: when said last drag-line, said first downhaul and second downhaul were in predeterminated position, said jack-knife bridge was in level; When straining said first downhaul and second downhaul with respect to predeterminated position, and prolong saidly when going up drag-line, said jack-knife bridge is in the state of arching upward; When going up drag-line with respect to predeterminated position tension is said, and when prolonging said first downhaul and second downhaul, said jack-knife bridge is in folded state.
In one embodiment of the invention; Pontic wedge in the middle of comprising four between said fixed bridge body wedge and the said unsteady pontic wedge, and said fixed bridge body wedge, said unsteady pontic wedge and middle pontic wedge are of similar shape and size.
According to one embodiment of present invention, a kind of jack-knife bridge system is provided, has comprised: checkout gear, said checkout gear are used to detect surface craft to be passed through; And aforesaid jack-knife bridge, wherein said checkout gear detect surface craft through the time, send signal and be used to drive said drive unit.
The jack-knife bridge that the embodiment of the invention proposes not only has the advantage that collapsible bridge can transport fast and set up; Also having the open-type bridge simultaneously can be under the bridge boats and ships and in time adjusts width and headroom to adapt to the advantage that large, medium and small different ship passes through; In addition; Jack-knife bridge structure of the present invention is simple, reasonable stress, need not too much hydraulic pressure unit and drives, and has greatly reduced construction cost.And, curl because the body of a bridge of the embodiment of the invention is collapsible, therefore can save the site assembly link, thereby realize fast quick-detach, transport and set up, improved bridge erection efficient.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 is the structural representation according to the jack-knife bridge that is in the horizontal operation state of the embodiment of the invention;
Fig. 2 is the structural representation of the jack-knife bridge of the duty that arches upward according to being in of the embodiment of the invention;
Fig. 3 is the structural representation according to the jack-knife bridge that is in the folding work state of the embodiment of the invention;
Fig. 4 is the fixed bridge body wedge vertical view sketch map according to the embodiment of the invention one;
Fig. 5 is the structural representation according to the jack-knife bridge that is in the horizontal operation state of the embodiment of the invention two;
Fig. 6 is the fixed bridge body wedge vertical view sketch map according to the embodiment of the invention two.
Reference numeral:
1. first drive motors/reducer;
2. fixed bridge body wedge;
3. middle pontic wedge;
4. go up drag-line;
5. first downhaul;
6. the pontic wedge floats;
7. be connected the revolute pair hinge between fixed bridge body wedge and ground;
8. the first drag-line rotating shaft;
9. connect the revolute pair hinge between the pontic wedge;
10. second downhaul;
11. the 3rd drag-line rotating shaft;
12. the second drag-line rotating shaft;
13. the 3rd drive motors/reducer;
14. second drive motors/reducer.
The specific embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
Embodiment one
The embodiment of the invention one has proposed a kind of jack-knife bridge; As shown in Figure 1; This jack-knife bridge comprises the fixed bridge body wedge 2 that is connected with ground; Wherein in one embodiment of the invention, fixed bridge body wedge 2 can be connected with ground through revolute pair hinge 7, and those skilled in the art also can adopt other modes to connect certainly.This jack-knife bridge also comprises the pontic wedge 6 that floats; And being connected a plurality of middle pontic wedge 3 between fixed bridge body wedge 2 and the unsteady pontic wedge 6, middle pontic wedge 3 is connected through connecting the revolute pair hinge each other and between fixed bridge body wedge 2, unsteady pontic wedge 6 and the middle pontic wedge 3.The bridge floor 14 that can let automobile, bicycle, pedestrian etc. pass through is positioned at the by-level position of said wedge 2,3,6.Wherein, the present invention is to the not restriction of quantity of middle pontic wedge 3, and its quantity specifically should be selected according to the width in river.In one embodiment of the invention; As shown in Figure 1; Pontic wedge 3 in the middle of comprising four between fixed bridge body wedge 2 and the unsteady pontic wedge 6, and fixed bridge body wedge 2, unsteady pontic wedge 6 and middle pontic wedge 3 are of similar shape and size.
This jack-knife bridge also comprises drive unit, goes up drag-line 4, first downhaul 5 and second downhaul 10.In one embodiment of the invention, drive unit can be fixed on the fixed bridge body wedge 2, also can be fixed on the ground separately.Wherein, an end of last drag-line 4 is fixed on the top of pontic wedge 6 of floating, and runs through the top of all middle pontic wedges 3, and the other end of last drag-line 4 links to each other with drive unit; One end of first downhaul 5 and second downhaul 10 is fixed on the bottom of the pontic wedge 6 that floats; And the bottom of running through all middle pontic wedges 3; The other end of first downhaul 5 and second downhaul 10 all links to each other with drive unit; Wherein, last drag-line 4 and first downhaul 5 and second downhaul 10 be connected with drive unit around on the contrary, as shown in Figure 4.Said drive unit may further include: the first reducer (not shown), said first reducer are connected with the first drag-line axle 8 with first drive motors 1 respectively.Said reducer can prevent that the velocity of rotation of motor is too high; The feasible folding and unfolding excessive velocities that goes up drag-line 4 and downhaul 5,10; Promptly all be to drive reducer in the process of retractable, drive drag-line rotating shaft 8 rotations again, thereby guaranteed the easy motion of drag-line in the folding and unfolding process by drive motors.The embodiment of the invention is through the state of drive unit to this jack-knife bridge of drive controlling of last drag-line 4, first downhaul 5 and second downhaul 10.
In embodiments of the present invention, the bottom of pontic wedge has wedge-type shape, like this at tension first downhaul 5 and second downhaul 10, and on prolonging during drag-line 4, can be so that jack-knife bridge be in the state of arching upward, and as shown in Figure 2.Preferably; In embodiments of the present invention, the top of pontic wedge also has wedge-type shape, and the wedge-type shape of pontic wedge bottom is wider than the wedge-type shape on pontic wedge top; Like this tension on drag-line 4; And when prolonging first downhaul 5 and second downhaul 10, can be so that jack-knife bridge be in folded state, as shown in Figure 3.Under normal condition, when last drag-line 4, first downhaul 5 and second downhaul 10 were in predeterminated position, this jack-knife bridge is in level, and was as shown in Figure 1.
In this embodiment; Drive unit comprises that first drive motors 1 (also can be described as reducer when the drive motors backward rotation; In following examples, be referred to as drive motors) and the first drag-line rotating shaft 8 that drives by first drive motors 1; The last drag-line 4 and first downhaul 5 and second downhaul 10 all are connected on the first drag-line rotating shaft 8, but go up drag-line 4 and first downhaul 5 and second downhaul 10 around on the contrary, as shown in Figure 4.
Particularly; In embodiments of the present invention; The body of a bridge of jack-knife bridge can be gone up drag-line 4, first downhaul 5 and second downhaul 10 by first drive motors 1 and the first drag-line rotating shaft, 8 controls and realize the level of pontics jointly, arches upward and fold three duties; Thereby can be according to size and height through boats and ships, adjustment body of a bridge shape is passed through to adapt to different boats and ships.For example:
(1) pass through when no ship, perhaps than craft through the time, last drag-line 4, first downhaul 5 and second downhaul 10 are in predeterminated position makes the body of a bridge be in level, pedestrian, vehicle and spitkit can pass through smoothly at this moment.
(2) when big boats and ships pass through, the body of a bridge of jack-knife bridge drives the first drag-line rotating shaft 8 (supposing to make its forward rotation) in first motor-driven 1, thereby strains first downhaul 5 and second downhaul 10; And drag-line 4 in the prolongation, can be so that jack-knife bridge is in the state of arching upward, to reach big boats and ships through required headroom requirement; After boats and ships passed through, the body of a bridge automatically reverted to level, and the embodiment of the invention is compared with the open-type bridge like this; Has the current simultaneously advantage of boats and ships, pedestrian and vehicle; The wedge of pontic forms the arch body of a bridge, and load is delivered to ground through the arch body of a bridge on the bridge floor, because wedge bears pressure; This moment, the body of a bridge had good force transfering characteristic, and is stressed more scientific and reasonable;
(3) pass through when very big boats and ships, and the arch body of a bridge be can not satisfy headroom and require the time, the body of a bridge of jack-knife bridge drives the first drag-line rotating shaft 8 (supposing to make its backward rotation) in first motor-driven 1; Thereby drag-line 4 in the tension, and prolong first downhaul 5 and second downhaul 10, make jack-knife bridge be in folded state; The body of a bridge is that an integral body is rolled with a side; Make large ship be able to through, after boats and ships passed through, the body of a bridge was returned to level again.
Embodiment two
What this embodiment and embodiment one were different is; Drive unit comprises second drive motors 14 and the second drag-line rotating shaft 12 that is driven by second drive motors 14 in this embodiment; And the 3rd drive motors 13 and the 3rd drag-line rotating shaft 11 that drives by the 3rd drive motors 13; Last drag-line 4 is connected on the second drag-line rotating shaft 12; First downhaul 5 and second downhaul 10 are connected on the 3rd drag-line rotating shaft 11, and go up drag-line 5 and first downhaul 5 and second downhaul 10 around on the contrary, as illustrated in Figures 5 and 6.In this embodiment, the working method of jack-knife bridge is identical with embodiment one, repeats no more at this.As the preferred embodiments of the present invention; Also comprise the controller that control second drive motors 14 drives and the 3rd drive motors 13 drives; Thereby can control second drive motors 14 and the 3rd drive motors 13 uniformly, make that upward drag-line 4, first downhaul 5 and second downhaul 10 can collaborative works.Said drive unit may further include: the second reducer (not shown), and said second reducer can be connected 12 with second drive motors 14 with the second drag-line axle respectively; The 3rd reducer, said the 3rd reducer can be connected with the 3rd drag-line axle 11 with the 3rd drive motors 13 respectively.Said reducer can prevent that the velocity of rotation of motor is too high; The feasible folding and unfolding excessive velocities that goes up drag-line 4 and downhaul 5,10; Promptly all be to drive reducer in the process of retractable, drive drag-line rotating shaft rotation again, thereby guaranteed the easy motion of drag-line in the folding and unfolding process by drive motors.
The jack-knife bridge that the embodiment of the invention proposes not only has the advantage that collapsible bridge can transport fast and set up; Also having the open-type bridge simultaneously can be under the bridge boats and ships and in time adjusts width and headroom to adapt to the advantage that large, medium and small different ship passes through; In addition; Jack-knife bridge structure of the present invention is simple, reasonable stress, need not too much hydraulic pressure unit and drives, and has greatly reduced construction cost.And, curl because the body of a bridge of the embodiment of the invention is collapsible, therefore can save the site assembly link, thereby realize fast quick-detach, transport and set up, improved bridge erection efficient.
According to one embodiment of present invention, a kind of jack-knife bridge system is provided further, has comprised: checkout gear, said checkout gear are used to detect surface craft to be passed through, and said surface craft can be the water surface vehicles such as ship, yacht, warship; And aforesaid jack-knife bridge, wherein said checkout gear detect surface craft through the time, send signal and be used to drive said drive unit.Thus, jack-knife bridge system according to an embodiment of the invention, can automatically perform vehicle through the time jack-knife bridge auto-folder, thereby improved the operational efficiency of said system.
Although illustrated and described embodiments of the invention; For those of ordinary skill in the art; Be appreciated that under the situation that does not break away from principle of the present invention and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited accompanying claims and equivalent thereof.
Claims (13)
1. jack-knife bridge comprises:
The fixed bridge body wedge that is connected with ground;
The pontic wedge floats;
Pontic wedge in the middle of a plurality of, said a plurality of middle pontic wedges are connected between said fixed bridge body wedge and the said unsteady pontic wedge;
Drive unit is used to drive said jack-knife bridge and folds;
Last drag-line, a said end of going up drag-line is fixed on said unsteady pontic wedge top, and runs through all said middle pontic wedge tops, and the said other end of going up drag-line links to each other with said drive unit;
First downhaul and second downhaul; Described first downhaul and second downhaul, one end are separately fixed at said unsteady pontic wedge bottom; And run through all said middle pontic wedge bottoms, the other end of said first downhaul and second downhaul all links to each other with said drive unit;
Wherein, said go up that drag-line and said first downhaul and second downhaul be connected with said drive unit around on the contrary, through the state of said drive unit to the said jack-knife bridge of drive controlling of drag-line, said first downhaul and second downhaul on said.
2. jack-knife bridge as claimed in claim 1 is characterized in that, said drive unit is fixed on the said fixed bridge body wedge, or is installed on the ground that is connected with said fixed bridge body wedge.
3. jack-knife bridge as claimed in claim 1; It is characterized in that; Said fixed bridge body wedge is connected through revolute pair with ground, also connects through revolute pair between said fixed bridge body wedge, said unsteady pontic wedge and the said a plurality of middle pontic wedge.
4. jack-knife bridge as claimed in claim 1 is characterized in that, said drive unit comprises: first drive motors; And by the first drag-line rotating shaft of said first drive motor drives; Wherein
The said drag-line of going up all is connected on the said first drag-line rotating shaft with said first downhaul and second downhaul, and on said drag-line and said first downhaul and second downhaul around on the contrary.
5. jack-knife bridge as claimed in claim 4 is characterized in that, said drive unit further comprises: first reducer, said first reducer are connected with the first drag-line axle with first drive motors respectively.
6. jack-knife bridge as claimed in claim 1; It is characterized in that; Said drive unit comprises: second drive motors and by the second drag-line rotating shaft of said second drive motor drives; And the 3rd drive motors and by the 3rd drag-line rotating shaft of said the 3rd drive motor drives; The wherein said drag-line of going up is connected on the said second drag-line rotating shaft, and said first downhaul and second downhaul are connected on said the 3rd drag-line rotating shaft, and said go up drag-line and said first downhaul and second downhaul around on the contrary.
7. jack-knife bridge as claimed in claim 6 is characterized in that, said drive unit further comprises: second reducer, said second reducer are connected with the second drag-line axle with second drive motors respectively; The 3rd reducer, said the 3rd reducer are connected with the 3rd drag-line axle with the 3rd drive motors respectively.
8. jack-knife bridge as claimed in claim 6 is characterized in that, also comprises the controller of said second drive motor drives of control and the 3rd drive motor drives, rotates said second drive motors and said the 3rd drive motors with the control synchronous backward.
9. jack-knife bridge as claimed in claim 1 is characterized in that the upper and lower of said pontic wedge all has wedge-type shape, and has identical base.
10. jack-knife bridge as claimed in claim 9 is characterized in that, the wedge-type shape of said pontic wedge bottom is wider than the wedge-type shape on said pontic wedge top.
11. jack-knife bridge as claimed in claim 10 is characterized in that, through said drive unit the said state of going up the said jack-knife bridge of drive controlling of drag-line, said first downhaul and second downhaul is comprised:
When said last drag-line, said first downhaul and second downhaul were in predeterminated position, said jack-knife bridge was in level;
When straining said first downhaul and second downhaul with respect to predeterminated position, and prolong saidly when going up drag-line, said jack-knife bridge is in the state of arching upward;
When going up drag-line with respect to predeterminated position tension is said, and when prolonging said first downhaul and second downhaul, said jack-knife bridge is in folded state.
12. jack-knife bridge as claimed in claim 1; It is characterized in that; Pontic wedge in the middle of comprising four between said fixed bridge body wedge and the said unsteady pontic wedge, and said fixed bridge body wedge, said unsteady pontic wedge and middle pontic wedge are of similar shape and size.
13. a jack-knife bridge system comprises:
Checkout gear, said checkout gear are used to detect surface craft to be passed through; And
Jack-knife bridge according to claim 1, wherein
Said checkout gear detect surface craft through the time, send signal and be used to drive said drive unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103733XA CN101818477B (en) | 2010-02-02 | 2010-02-02 | Jack-knife bridge and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010103733XA CN101818477B (en) | 2010-02-02 | 2010-02-02 | Jack-knife bridge and system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101818477A CN101818477A (en) | 2010-09-01 |
| CN101818477B true CN101818477B (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010103733XA Expired - Fee Related CN101818477B (en) | 2010-02-02 | 2010-02-02 | Jack-knife bridge and system thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758755B (en) * | 2016-11-15 | 2018-06-22 | 东南大学 | A kind of base-supporting folded truss bridge structure |
| CN108560399B (en) * | 2018-04-09 | 2020-10-16 | 中国船舶重工集团应急预警与救援装备股份有限公司 | Retractable floating bridge for intercepting river spilled oil |
| CN112726381A (en) * | 2020-12-31 | 2021-04-30 | 上海壹墨图文设计制作有限公司 | Rolling bridge |
| CN113859461B (en) * | 2021-11-11 | 2022-08-19 | 哈尔滨工业大学（深圳） | Large foldable floating body on sea |
| CN114293457B (en) * | 2022-01-18 | 2023-02-10 | 武汉理工大学 | Automatic expansion type floating bridge unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2762069A (en) * | 1951-05-17 | 1956-09-11 | John N Laycock | Trussed bridge structure |
| FR2489389A1 (en) * | 1980-09-02 | 1982-03-05 | Bruge Jean Louis | Unfoldable floating bridge water crossings - has solid rectangular floatable caissons allowing articulation deployment with tensioning cable |
| US5649333A (en) * | 1996-02-13 | 1997-07-22 | Chernjawski; Michael | Rapid articulated pontoon bridge |
-
2010
- 2010-02-02 CN CN201010103733XA patent/CN101818477B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2762069A (en) * | 1951-05-17 | 1956-09-11 | John N Laycock | Trussed bridge structure |
| FR2489389A1 (en) * | 1980-09-02 | 1982-03-05 | Bruge Jean Louis | Unfoldable floating bridge water crossings - has solid rectangular floatable caissons allowing articulation deployment with tensioning cable |
| US5649333A (en) * | 1996-02-13 | 1997-07-22 | Chernjawski; Michael | Rapid articulated pontoon bridge |
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|---|---|
| CN101818477A (en) | 2010-09-01 |
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