IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0905571
(1992-06-26)
|
우선권정보 |
CH-199101985 (1991-04-07) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
Oldham, Oldham & Wilson Co.
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인용정보 |
피인용 횟수 :
8 인용 특허 :
5 |
초록
▼
To connect two sheaths (1a, 1b), used in prestressing cable technology for concrete supporting structures, there is a coupling element (19) which is fitted with chamfered flanges (6). The sheaths (1a, 1b), which have protrusions (2a, 2b), are each inserted into the coupling element (19) with a tubul
To connect two sheaths (1a, 1b), used in prestressing cable technology for concrete supporting structures, there is a coupling element (19) which is fitted with chamfered flanges (6). The sheaths (1a, 1b), which have protrusions (2a, 2b), are each inserted into the coupling element (19) with a tubular element (4) which forms the end of the sheaths (1a, 1b). A sealing ring (7) is inserted between each of the flanges (6) and protrusions (2a) of the sheaths (1a, 1b). The flanges (6) and the protrusions (2a) are held together by sloping surfaces (10a) and (10b) of a groove worked in each socket (8). Each of the sockets (8) consists of two half portions (8a) and (8b), which can be connected together.
대표청구항
▼
1. A device for connecting two sheaths intended for receiving prestressing cables in concrete supporting structures, wherein said sheaths substantially abut in their axial direction and which are each provided with ends in proximity with each other, protrusions spaced at a distance one from the othe
1. A device for connecting two sheaths intended for receiving prestressing cables in concrete supporting structures, wherein said sheaths substantially abut in their axial direction and which are each provided with ends in proximity with each other, protrusions spaced at a distance one from the other, and end portions extending from said protrusions to said ends, said sheaths having outer surfaces, the diameter of the outer surface of said end portions and of said sheaths on the opposite side of said protrusions being equal, said device comprising: a hollow, essentially tubular coupling element connecting said sheaths, said coupling element having two ends and having an inner surface which corresponds in diameter with the outer surfaces of the two sheaths and further having a flange at each of its two ends, said coupling element being adapted to be pushed onto the end portion of one sheath until one flange of said coupling element is in proximity with the aforesaid protrusion of said one sheath and the other sheath being adapted to be inserted into said coupling element until the other flange of said coupling element is in proximity with the aforesaid protrusion of the other sheath; two sockets, each comprising a pair of connecting portions which disposed centrally on the inside, have an encircling trapezoidal groove whose ring-shaped sloping surfaces engage the protrusions and flanges and serve to fix the protrusions of the sheaths adjacent said flanges; and two sealing means, one of which is disposed between the protrusion of the one sheath and one of the flanges on the coupling elements, and the other of which is disposed between the protrusion of the other sheath and the other flange on the coupling element. 2. The device of claim 1, wherein the flanges of the coupling element are inclined in relation to the surface of the coupling element by an angle which corresponds essentially to the angle of the sloping surfaces of the encircling trapezoidal groove and the pitch angle of the protrusion of the sheaths. 3. The device of claim 1, wherein the length of the coupling element is measured so that total length of sheaths to be joined can be adapted to a required total length. 4. The device of claim 1, wherein the sealing means comprises of a flexible sealing ring disposed between each one of the protrusions of the sheaths and each one of the flanges of the coupling element. 5. The device of claim 1, wherein the socket comprises of two half portions which are joined together in the axial direction by a hinge at a common connecting point and are fitted at the other connecting point with connecting means. 6. The device of claim 5, wherein the connecting means comprises of a hook affixed to one of the half portions and of an arm affixed to the other half portion, into which the hook can latch. 7. The device of claim 1, wherein the inner dimensions of the edge portions of the socket bordering the central portion with the encircling trapezoidal groove correspond to the outer dimensions of the encompassing sheath and coupling element. 8. A device for connecting two sheaths intended for receiving prestressing cables in concrete supporting structures, wherein said sheaths substantially abut in their axial direction and which are each provided with ends in proximity with each other, protrusions spaced at a distance one from the other, and end portions extending from said protrusions to said ends, said sheaths having outer surfaces, the diameter of the outer surface of said end portions and of said sheaths on the opposite side of said protrusions being equal, said device comprising: a hollow, essentially tubular coupling element connecting said sheaths, said coupling element having two ends and having an inner surface which corresponds in diameter with the outer surfaces of the two sheaths and further having a flange at each of its two ends, said coupling element being adapted to be pushed onto the end portion of one sheath until one flange of said coupling element is in proximity with the aforesaid protrusion of said one sheath and the other sheath being adapted to be inserted into said coupling element until the other flange of said coupling element is in proximity with the aforesaid protrusion of the other sheath; two sockets, each comprising a pair of connecting portions which, disposed centrally on the inside, have an encircling trapezoidal groove whose ring-shaped sloping surfaces engage the protrusions and flanges and serve to fix the protrusions of the sheaths adjacent said flanges wherein each socket comprises two half portions which are joined together in the axial direction by a hinge at a common connecting point and are fitted to the other connecting point by connecting means; and two sealing means, one of which is disposed between the protrusion of the one sheath and one of the flanges on the coupling element, and the other of which is disposed between the protrusion of the other sheath and the other flange on the coupling element. 9. The device of claim 8, wherein the flanges of the coupling element are inclined in relation to the surface of the coupling element by an angle which corresponds essentially to the angle of the sloping surfaces of the encircling trapezoidal groove and the pitch angle of the protrusion of the sheaths. 10. The device of claim 8, wherein the length of the coupling element is measured so that total length of sheaths to be joined can be adapted to a required total length. 11. The device of claim 8, wherein the sealing means comprises a flexible sealing ring disposed between each one of the protrusions of the sheaths and each one of the flanges of the coupling element. 12. The device of claim 8, wherein the connecting means comprises a hook affixed to one of the half portions and of an arm affixed to the other half portion into which the hook can latch. 13. The device of claim 8, wherein the inner dimensions of the edge portions of the socket bordering the central portion with the encircling trapezoidal groove correspond to the outer dimensions of the encompassing sheath and coupling element. 14. A device for connecting two sheaths intended for receiving prestressing cables in concrete supporting structures, wherein said sheaths substantially abut in their axial direction and which are each provided with ends in proximity with each other, protrusions spaced at a distance one from the other, and end portions extending from said protrusions to said ends, said sheaths having outer surfaces, the diameter of the outer surface of said end portions and said sheaths on the opposite side of said protrusions being equal, said device comprising: a hollow, essentially tubular coupling element connecting said sheaths, said coupling element having two ends and having an inner surface which corresponds in diameter with the outer surfaces of the two sheaths and further having a flange at each of its two ends, said coupling element overlying the end portion of said sheaths and said flanges of said coupling element being in proximity with the aforesaid protrusions of said sheaths; two sockets, each comprising a pair of connecting portions which, disposed centrally on the inside, have an encircling trapezoidal groove whose ring-shaped sloping surfaces engage the protrusions and flanges and serve to fix the protrusion of the sheaths adjacent said flanges; and two sealing means, one of which is disposed between the protrusion of the one sheath and one of the flanges on the coupling element, and the other of which is disposed between the protrusion of the other sheath and the other flange on the coupling element.
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