CA1259354A - Hose coupling with a tubular hose clamping member - Google Patents
Hose coupling with a tubular hose clamping memberInfo
- Publication number
- CA1259354A CA1259354A CA000470481A CA470481A CA1259354A CA 1259354 A CA1259354 A CA 1259354A CA 000470481 A CA000470481 A CA 000470481A CA 470481 A CA470481 A CA 470481A CA 1259354 A CA1259354 A CA 1259354A
- Authority
- CA
- Canada
- Prior art keywords
- hose
- clamping ring
- holding rib
- connecting member
- pushed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
ABSTRACT
A hose coupling wherein the end portion of an elastic hose surrounds an annular rib of a nipple and the rib has two mutually inclined conical flanks. The end portion of the hose is surrounded by a clamping ring wherein two circumferentially complete terminal portions surround a longitudinally slotted sleeve-like median portion. The webs between the slots bear against the end portion of the hose along the entire axial length of the rib so that the internal surface of the end portion of the hose is in adequate sealing engagement with both flanks of the rib. At least that flank of the rib which is more distant from the free end of the nipple has circumferentially complete teeth with radial flanks facing away from the free end of the nipple to thus effectively oppose separation of the end portion of the hose from the nipple.
A hose coupling wherein the end portion of an elastic hose surrounds an annular rib of a nipple and the rib has two mutually inclined conical flanks. The end portion of the hose is surrounded by a clamping ring wherein two circumferentially complete terminal portions surround a longitudinally slotted sleeve-like median portion. The webs between the slots bear against the end portion of the hose along the entire axial length of the rib so that the internal surface of the end portion of the hose is in adequate sealing engagement with both flanks of the rib. At least that flank of the rib which is more distant from the free end of the nipple has circumferentially complete teeth with radial flanks facing away from the free end of the nipple to thus effectively oppose separation of the end portion of the hose from the nipple.
Description
~L259354 This invention relates to a coupling for a hose.
A proposed hose coupling includes a connecting member on ~ihich an end po~tion of a hose can be pushed, and an e'astic clamping ring, with the connecting member being provided on its outside with a holc.ing rib which ex-tends therearound. The ront side .surface OI the holding rib, which is directed towards the push-on end of the connecting me~!~er decreases in diameter towards the push-on end for the end portion of the hose to be pushed on to the rib over the front side surfaces. The clamping rin(J surrounds the pushec.-on end portion of -the ho.se, when the latter is on the connecting member~ in t:he re~.ion of the holding rib, is shaped so that it can be pushed, together with the hose, ovex the holding rib, has closed peripheral edge portions at the axial ends, and is provided with slots which pass radially therethrough, which exter.d ir the axial directlon of the cl.amping ring and whi.ch are uniformly distributed in the peripheral directlon.
In a known hose coupling of this kind, the rear side face of the holding ring which is remote from the push-on end of the connectirg member e~tends in a radial plane. ~t the axially forward and rear-ward ends, the clamping ring has a respective irwardly prcjectirg ar!nu~ar bead. The front bead is shaped to press the end portion of the hose, which is fitted on to the con.nect.ing member, against the decreasing diameter front side surface of the holding rib and the ~k ~Z~9354 rear annular bead is shaped to press the end portion against the cylindrical surface of the connecting member, which adjoins the radial side surface of the holding rib. The slots in the clamping ring are axially shorter than the axial length of the holding rib and web portions between the slots are compara-tively thick in the radial direction, the thickness thereof increasing on the inside towards the ends so that, in conjunction with their axially short lG dimensions, they are virtually inflexible in the radial direction and their gripping force in the region of -the holding rih is comparatively small.
This has an adverse effect on the sealing action and the degree with which the hose i5 secured against being pulled axially off the connecting member.
A hollow space in which there is no sealing effect may be formed in the region between the rear annular bead and the radial face of the holding rib, between the cylindrical outside surface of the connecting portion and the hose. ~efore the hose is pushed on to the connecting member, the clamping ring is fitted over the hose and then the hose and the clamping ring are together pushed over the connecting mem.ber for carrying the hose. In order to permit the hose and the clamping ring to be easily pushed on, the inside diameter at least of the radially inwardly projecting annular bead on the clamping ring.
being the annular bead which leads in the direction in which the hose is pushed Gn to the connecting member, must be substantially larger than the outside ' :
diameter of the holding rib so that the clamping force in the assembled condition, between the front annular bead and the cvlindrical outside surface of the connecting portion, is possibly too small, for securing the hose in position in the axial direction and providing a seal, in an adecluate fashion in spite of the above-mentioned hollow space. If on the other hand the inside diameter of the front annular bead is smaller, then an excessively high force is required to push the hose on to the connecting member, and it is possible that that force cannot at least be applied manually.
rrhere is thus a need for a generally improved hose coupling which provides a better sealing action and axial securing effect, with the hose and the clamping ring being easier to push on to the connecting member and preferahly with the clamping ring being able to adjust to thermal expansion of the hose material and shrinkage thereof due to cooling.
According to the present invention there is provided a hose coupling including a connecting member on which an end portion cf a hose can be pushed, which connecting member is provided on its outside with a holding rib which extends therearound, with the front side surface of the holding rib, which is directed towards the push-on end of the connectlng member, decreasing in diameter towards said push-on end for the end portion of the hose to be pushed on to the rib over said front side surface, and an elastic clamping ring for surrounding the pushed-on end ~ortion of the 12~9354 hose, when the latter is on the connecting member) in the region of the holding rib, which ring is shaped so that it can be pushed together with the hose, over the holding rib, has closed peripheral edge portions at the axial ends, and is provided with slots which pass radially therethrough, which extend in the axial direction of the clamping ring and which are uniformly distributed in the peripheral direction, wherein the rear side surface of the holdin~ rib decreases in diameter away from said push-on end of the connectin~
member, the clampin~ rings slots extend at least over the full axial length of the holdin~ rib, web portions between the slots are elastically flexible in the radial direction, and the mean diamet2r and the inside diameter of the clamping ring in the region of the web portions are constant, at least over the major part of the axial length of the holding rib, before a hose end and the clamping ring are pushed on to the connection member, and such that, after the hose end has been pushed on to the connecting member, the web portions are elastically bulged out in their axially central region with which they bridge over the crest of the hold.ing rib, and apply a spring biassi~g effect-to the hose.
The fact that the rear side surface of the holding rib, which is remote from the push-on end of the connecting member, decreases in diameter, i.eO tapers, eliminates a hollow space or cavity between the hose and the connectin~ member an~, bv virtue of the long web portions which bend radially , '~
~2~935D~
outwardly at the region of the holding rib, the hose is pressed firmly against the holding rib and the connecting member over a greater axial length, with the web portions producing the spring biassing effect, so as to provide a better sealing effect and an axial securing action. If therefore the front end of the clamping ring carries an annular bead which projects radially inwardly, -the inside diameter thereof can be made comparatively large. Possible, a radially inwardly projecting annular ~ead at che front end of the slamping ring can be entirely omitted. This facilitates pushing the hose and the clampinq ring jointly on to the connecting member. In 'chis case, the long elastic web portions facilitate the operation of pushing the hose on to the connecting member, while also providing for a spring biassing or pre-stressing effect in a comparatively long axial region of the end portion of the hose, which is pushed on to the connecting member, so that ln that region the clamping ring can resiliently yield to thermal expansion of the hose material and can retighteIl in the event of shrinkage of the hose material, caused by cooling. This gives a further increase in the level of security of the sealing action produced.
It is also desirable for the rear side surface of the holding rib to be provided with shallow teeth extending therearound. This even further improves the axial securing ackion.
The teeth may be of a sawtooth configuration in axial cross-section and each sawtooth side face A
1~5~354L
which is remote from the push-on end of the connecting pGxtion may lie in a radial plane. This tooth configuratiorl on the one hand facilitates the operation of pushing the hose onto the connecting member while on the other hand it resists, to a particularly high degree, the hose bein~ pulled or slipping off the connecting mernber.
The slots extend at least over the full axial lenyth of the holdirg rib. With this configuration, the web portions press the hose material resiliently against the holding rib over thc entire axial length thereof, which gives a correspondingly higher level of security and certainty of sealing action and an improved axial securing effect.
It is also desirable for the angle of inclination of the rear side surface of the holding rib to be less than that oE the front side surface of the holding rib, and for the axial length of the two side surfaces to be substantiall~
the same. This makes it easier for the connecting member to be introduced into the hose and makes it easier for the hose to be pushed onto the connecting member. I~onetheless, the predominant part of the hose which is pushed on to the connecting member, in particular the front end thereof, bears under an inherent biassing or prestressing force against the connecting portion, thereby increasing the sealing effect~
The axial length of the clamping ring may be such that the end of the clamping ring which is , :' ~ .
~lZ5~3~9L
remote frGm the pushed-on end of the hose lies in front of the push-on end of the connecting member.
In that way, the clamping ring resists the hose material lifting away from the decreasing diameter front side surface of the holding rib, even when the hose is radially bent or deflected in front of the push-on end of the connecting member.
The one peripheral edge portion of the clamping ring may bear against the end face of the pushed-on end of the hose. In that way, the peripheral edge portion forms an abutment to prevent the clamping ring from ~eing pushed on to the hose too far.
The clamping ring is of a constant inside diameter, before -the hose and the clamping ring are pushed on to the connecting member, over the length Gf the slots. This simplifies manufac.ure of the clamping ring and ensures that, in their axially central region with which they bridge over the crest of the holding rlb, the web portions are caused el.astically to bulge out and apply the desired spring biassing effect to the hose.
In addition, the peripheral edge portion of the clamping ring, which is bes.ide the rear side of the holding rib, may be corrugated in the peripheral directlon Th-.s permits the front end of the clamping ring, consi.dered in the direction in which the ring is fitted on to the connecting member, -to enlarge, thereby facilitating pushing the clamping ring into position on the connecting member.
~ X5935~L
The latter ef~ect may also be achleved hy the mean diameter of the clamping ring being constant before the hose and the clamping ring are pushed on to the connecting member, over a main portion of the axial length of the clamping ring, and, in an intermediate region, which adjoins the main portion and which is adjacent to the peripheral edge portion which is beside the rear side of ~he holding rib, increasing in a directjon towards said peripheral edge portion.
In this connection, the intermediate region may be bent back radially outwardly and over the outside of the claDIping ring so that the peripheral edg~ portion which is beside the rear side face of the holding rib surrounds the ~ain portion at a radial spacing~ In this way, the clamping rin~ bears constantly against the hose over its entire length I~onetheless, it can eY~pand at its front end and can easily be pushed over the holding rib, with the hose.
,o The peripheral edge portion of the clamping ring, which is beside the rear slde face of the holding rib, may be interrupted in the region hetween two adjacent web portions, and the interruption may be closed by a closure means. In this case~ t~le closure means of the clamp-ng rincJ may be ope~ed befcre the hose and the clamping ring are pushed on to the connecting member, in order to facilitate this operation.
The closure means may be a retaining or detent closure. Such a -losure means is easy to handle.
~2~93~4 ~ n particular, the closure means may ~e provided with portions which are formed on both ~ides of the interruption ana which engage one behind the other, thereby providin~ a closure means of simple construc ;::ion .
A respeetive pro~eetion may be formed on the per:ipheral edge portion having the interruption, on both sides of the interruption, in the vicinity thereor. The projeetions faeilitate the operation of elosing the clo~ure means, as, for the purpo3es of clo3ing the closure means, they only have to be brought together in the peripheral c.irection.
In this arrangement, one proiection rnay form the one closur2 portion so th~t there is no need for an additional projection acting as a suppoxt means for handling the closure means when closirlg same.
For a better understanding of the present invention, and to show how the same may be carried into effect, referenee will now be made, bv way of example, to the aecompanying drawings, in whieh:-Fig 1 is a view in axial seetion through ahose coupling accordi.ng to the invention, Fig 2 is a view in radial section through a elamping ring of the hose eoupling shown in Fig 1 Fig 3 is a perspective view OL part of a c~amping ring of a hose coupling aceording to a seeond embodiment of the invention, Figs 4 to 9 are vlews in axial seetion of clampin~ rings of hose -ouplings accord:ng to further embodinlents of the invention, o~ a hose, and ~25935fl~
Fig 10 is a perspective view of a clamping ring of a hose coupling according to anothe-c embodiment of the inven-tion.
In the embodiment of the ln~Tention illustrated in Figs 1 and 2 r the hose coupllng comprises a connecting member or portion 1 and a clarnping rlng 2 of elastic plastics material, a hose 3 being clamped therebetween, by its en~
portion 4.
The connecting portion 1 has a holding rib 5 extending therearound, which begins at the push-on end of the connecting portion 1 and terminates approximately at the rearward end of the connecting portiGn 1. ~ front side surface 7 of the rib 5 decreases in diameter towards a push-on end 6 of the connecting member 1 and the rear side surface 8 of the rib S decreases in diameter away from the push-on end 6. The angle of inclination of the front side surface 7 is somewhat larger than the angle of
A proposed hose coupling includes a connecting member on ~ihich an end po~tion of a hose can be pushed, and an e'astic clamping ring, with the connecting member being provided on its outside with a holc.ing rib which ex-tends therearound. The ront side .surface OI the holding rib, which is directed towards the push-on end of the connecting me~!~er decreases in diameter towards the push-on end for the end portion of the hose to be pushed on to the rib over the front side surfaces. The clamping rin(J surrounds the pushec.-on end portion of -the ho.se, when the latter is on the connecting member~ in t:he re~.ion of the holding rib, is shaped so that it can be pushed, together with the hose, ovex the holding rib, has closed peripheral edge portions at the axial ends, and is provided with slots which pass radially therethrough, which exter.d ir the axial directlon of the cl.amping ring and whi.ch are uniformly distributed in the peripheral directlon.
In a known hose coupling of this kind, the rear side face of the holding ring which is remote from the push-on end of the connectirg member e~tends in a radial plane. ~t the axially forward and rear-ward ends, the clamping ring has a respective irwardly prcjectirg ar!nu~ar bead. The front bead is shaped to press the end portion of the hose, which is fitted on to the con.nect.ing member, against the decreasing diameter front side surface of the holding rib and the ~k ~Z~9354 rear annular bead is shaped to press the end portion against the cylindrical surface of the connecting member, which adjoins the radial side surface of the holding rib. The slots in the clamping ring are axially shorter than the axial length of the holding rib and web portions between the slots are compara-tively thick in the radial direction, the thickness thereof increasing on the inside towards the ends so that, in conjunction with their axially short lG dimensions, they are virtually inflexible in the radial direction and their gripping force in the region of -the holding rih is comparatively small.
This has an adverse effect on the sealing action and the degree with which the hose i5 secured against being pulled axially off the connecting member.
A hollow space in which there is no sealing effect may be formed in the region between the rear annular bead and the radial face of the holding rib, between the cylindrical outside surface of the connecting portion and the hose. ~efore the hose is pushed on to the connecting member, the clamping ring is fitted over the hose and then the hose and the clamping ring are together pushed over the connecting mem.ber for carrying the hose. In order to permit the hose and the clamping ring to be easily pushed on, the inside diameter at least of the radially inwardly projecting annular bead on the clamping ring.
being the annular bead which leads in the direction in which the hose is pushed Gn to the connecting member, must be substantially larger than the outside ' :
diameter of the holding rib so that the clamping force in the assembled condition, between the front annular bead and the cvlindrical outside surface of the connecting portion, is possibly too small, for securing the hose in position in the axial direction and providing a seal, in an adecluate fashion in spite of the above-mentioned hollow space. If on the other hand the inside diameter of the front annular bead is smaller, then an excessively high force is required to push the hose on to the connecting member, and it is possible that that force cannot at least be applied manually.
rrhere is thus a need for a generally improved hose coupling which provides a better sealing action and axial securing effect, with the hose and the clamping ring being easier to push on to the connecting member and preferahly with the clamping ring being able to adjust to thermal expansion of the hose material and shrinkage thereof due to cooling.
According to the present invention there is provided a hose coupling including a connecting member on which an end portion cf a hose can be pushed, which connecting member is provided on its outside with a holding rib which extends therearound, with the front side surface of the holding rib, which is directed towards the push-on end of the connectlng member, decreasing in diameter towards said push-on end for the end portion of the hose to be pushed on to the rib over said front side surface, and an elastic clamping ring for surrounding the pushed-on end ~ortion of the 12~9354 hose, when the latter is on the connecting member) in the region of the holding rib, which ring is shaped so that it can be pushed together with the hose, over the holding rib, has closed peripheral edge portions at the axial ends, and is provided with slots which pass radially therethrough, which extend in the axial direction of the clamping ring and which are uniformly distributed in the peripheral direction, wherein the rear side surface of the holdin~ rib decreases in diameter away from said push-on end of the connectin~
member, the clampin~ rings slots extend at least over the full axial length of the holdin~ rib, web portions between the slots are elastically flexible in the radial direction, and the mean diamet2r and the inside diameter of the clamping ring in the region of the web portions are constant, at least over the major part of the axial length of the holding rib, before a hose end and the clamping ring are pushed on to the connection member, and such that, after the hose end has been pushed on to the connecting member, the web portions are elastically bulged out in their axially central region with which they bridge over the crest of the hold.ing rib, and apply a spring biassi~g effect-to the hose.
The fact that the rear side surface of the holding rib, which is remote from the push-on end of the connecting member, decreases in diameter, i.eO tapers, eliminates a hollow space or cavity between the hose and the connectin~ member an~, bv virtue of the long web portions which bend radially , '~
~2~935D~
outwardly at the region of the holding rib, the hose is pressed firmly against the holding rib and the connecting member over a greater axial length, with the web portions producing the spring biassing effect, so as to provide a better sealing effect and an axial securing action. If therefore the front end of the clamping ring carries an annular bead which projects radially inwardly, -the inside diameter thereof can be made comparatively large. Possible, a radially inwardly projecting annular ~ead at che front end of the slamping ring can be entirely omitted. This facilitates pushing the hose and the clampinq ring jointly on to the connecting member. In 'chis case, the long elastic web portions facilitate the operation of pushing the hose on to the connecting member, while also providing for a spring biassing or pre-stressing effect in a comparatively long axial region of the end portion of the hose, which is pushed on to the connecting member, so that ln that region the clamping ring can resiliently yield to thermal expansion of the hose material and can retighteIl in the event of shrinkage of the hose material, caused by cooling. This gives a further increase in the level of security of the sealing action produced.
It is also desirable for the rear side surface of the holding rib to be provided with shallow teeth extending therearound. This even further improves the axial securing ackion.
The teeth may be of a sawtooth configuration in axial cross-section and each sawtooth side face A
1~5~354L
which is remote from the push-on end of the connecting pGxtion may lie in a radial plane. This tooth configuratiorl on the one hand facilitates the operation of pushing the hose onto the connecting member while on the other hand it resists, to a particularly high degree, the hose bein~ pulled or slipping off the connecting mernber.
The slots extend at least over the full axial lenyth of the holdirg rib. With this configuration, the web portions press the hose material resiliently against the holding rib over thc entire axial length thereof, which gives a correspondingly higher level of security and certainty of sealing action and an improved axial securing effect.
It is also desirable for the angle of inclination of the rear side surface of the holding rib to be less than that oE the front side surface of the holding rib, and for the axial length of the two side surfaces to be substantiall~
the same. This makes it easier for the connecting member to be introduced into the hose and makes it easier for the hose to be pushed onto the connecting member. I~onetheless, the predominant part of the hose which is pushed on to the connecting member, in particular the front end thereof, bears under an inherent biassing or prestressing force against the connecting portion, thereby increasing the sealing effect~
The axial length of the clamping ring may be such that the end of the clamping ring which is , :' ~ .
~lZ5~3~9L
remote frGm the pushed-on end of the hose lies in front of the push-on end of the connecting member.
In that way, the clamping ring resists the hose material lifting away from the decreasing diameter front side surface of the holding rib, even when the hose is radially bent or deflected in front of the push-on end of the connecting member.
The one peripheral edge portion of the clamping ring may bear against the end face of the pushed-on end of the hose. In that way, the peripheral edge portion forms an abutment to prevent the clamping ring from ~eing pushed on to the hose too far.
The clamping ring is of a constant inside diameter, before -the hose and the clamping ring are pushed on to the connecting member, over the length Gf the slots. This simplifies manufac.ure of the clamping ring and ensures that, in their axially central region with which they bridge over the crest of the holding rlb, the web portions are caused el.astically to bulge out and apply the desired spring biassing effect to the hose.
In addition, the peripheral edge portion of the clamping ring, which is bes.ide the rear side of the holding rib, may be corrugated in the peripheral directlon Th-.s permits the front end of the clamping ring, consi.dered in the direction in which the ring is fitted on to the connecting member, -to enlarge, thereby facilitating pushing the clamping ring into position on the connecting member.
~ X5935~L
The latter ef~ect may also be achleved hy the mean diameter of the clamping ring being constant before the hose and the clamping ring are pushed on to the connecting member, over a main portion of the axial length of the clamping ring, and, in an intermediate region, which adjoins the main portion and which is adjacent to the peripheral edge portion which is beside the rear side of ~he holding rib, increasing in a directjon towards said peripheral edge portion.
In this connection, the intermediate region may be bent back radially outwardly and over the outside of the claDIping ring so that the peripheral edg~ portion which is beside the rear side face of the holding rib surrounds the ~ain portion at a radial spacing~ In this way, the clamping rin~ bears constantly against the hose over its entire length I~onetheless, it can eY~pand at its front end and can easily be pushed over the holding rib, with the hose.
,o The peripheral edge portion of the clamping ring, which is beside the rear slde face of the holding rib, may be interrupted in the region hetween two adjacent web portions, and the interruption may be closed by a closure means. In this case~ t~le closure means of the clamp-ng rincJ may be ope~ed befcre the hose and the clamping ring are pushed on to the connecting member, in order to facilitate this operation.
The closure means may be a retaining or detent closure. Such a -losure means is easy to handle.
~2~93~4 ~ n particular, the closure means may ~e provided with portions which are formed on both ~ides of the interruption ana which engage one behind the other, thereby providin~ a closure means of simple construc ;::ion .
A respeetive pro~eetion may be formed on the per:ipheral edge portion having the interruption, on both sides of the interruption, in the vicinity thereor. The projeetions faeilitate the operation of elosing the clo~ure means, as, for the purpo3es of clo3ing the closure means, they only have to be brought together in the peripheral c.irection.
In this arrangement, one proiection rnay form the one closur2 portion so th~t there is no need for an additional projection acting as a suppoxt means for handling the closure means when closirlg same.
For a better understanding of the present invention, and to show how the same may be carried into effect, referenee will now be made, bv way of example, to the aecompanying drawings, in whieh:-Fig 1 is a view in axial seetion through ahose coupling accordi.ng to the invention, Fig 2 is a view in radial section through a elamping ring of the hose eoupling shown in Fig 1 Fig 3 is a perspective view OL part of a c~amping ring of a hose coupling aceording to a seeond embodiment of the invention, Figs 4 to 9 are vlews in axial seetion of clampin~ rings of hose -ouplings accord:ng to further embodinlents of the invention, o~ a hose, and ~25935fl~
Fig 10 is a perspective view of a clamping ring of a hose coupling according to anothe-c embodiment of the inven-tion.
In the embodiment of the ln~Tention illustrated in Figs 1 and 2 r the hose coupllng comprises a connecting member or portion 1 and a clarnping rlng 2 of elastic plastics material, a hose 3 being clamped therebetween, by its en~
portion 4.
The connecting portion 1 has a holding rib 5 extending therearound, which begins at the push-on end of the connecting portion 1 and terminates approximately at the rearward end of the connecting portiGn 1. ~ front side surface 7 of the rib 5 decreases in diameter towards a push-on end 6 of the connecting member 1 and the rear side surface 8 of the rib S decreases in diameter away from the push-on end 6. The angle of inclination of the front side surface 7 is somewhat larger than the angle of
2~ inclination of the rear side surface 8 which is provided with shallow teeth 9 ex~ending therearound.
The outside diameter of the tubular connecting portion 1 at the push-on end, being about 28mm, is somewhat smaller than the inside diameter of the hose 3 in a non-stressed condition, being about 29mm, in order to make it easier for the hose 3 to be pushed on. The outside diameter of the rearward end of the connecting portion 1, at about 31mm, is somewhat larger than the inside diamete-c of the hose 3 in the unstressed condition. The side surfaces 7 and 8 are ~ ~93~L
of approximately the same length of 20mm in the axial direction, and are at an angle of about 7 and about
The outside diameter of the tubular connecting portion 1 at the push-on end, being about 28mm, is somewhat smaller than the inside diameter of the hose 3 in a non-stressed condition, being about 29mm, in order to make it easier for the hose 3 to be pushed on. The outside diameter of the rearward end of the connecting portion 1, at about 31mm, is somewhat larger than the inside diamete-c of the hose 3 in the unstressed condition. The side surfaces 7 and 8 are ~ ~93~L
of approximately the same length of 20mm in the axial direction, and are at an angle of about 7 and about
3 respectively. The l.argest outside diameter of the holdlng rih 5 is about 33 mm. The teeth 9 are substantially sawtooth-shape in cross-sect;.on.
Thei.r conical side face which is towards the push-on end b extends over an axia' length of about. 1.5mr.
while the radial side face thereof extends over about O.4mm. Th~ ancJle of inclination of the conical sides of the teeth is therefore about 15.
rrhe clamping ring 2 has twenty-four slots ].2 which pas.s radially therethrough and which extend in the axial direction as far as peripheral edge portions in the form of annular beads 10 and 11.
~he slots 12 are defined by thin axial web portions 13 and are arrangec`t at unif~rm spacing from each other in a distributed array arounc1 the periphery of the clamping ring 2. The width of the slots is about lmm. The annular beads 10 and 11 are closed in the peripheral direction. ~he annular bead 11 bears with a radially inwardly projecting flange portion aaainst the end face 14 of the end portion 4 so that the clampin~ ring 2 cannot be pushed further over the end portion ~. Instead of the flange portion, the hose 3 may be pro~ided, on its outside, with an annular bead 15 to act as an abutment for the clamping ring 2. Omitt.inc~ the radially inwardly proj~cting flaIlge portion on t.he annular bead li. anc' forminq the two annular beads 10 and 11 with the same inside diameter as that of the web portions 13 further ~S~335~
faciliiates manufacturing the clamping ring 2 and pushins- the clamping ring 2 on to the hose 3, and likewise jointly pushing the hose 3 and the clamping r-ng 2 on to the connecting por-:ion 1, beyond the holding rib 5.
The slots 12 extend at least over the full axial length, and preferably over ~ore th~n the enti~e axial ler~th of the holding rib 5, as illustrated.
The annular bead 10 is therefore disposed in front of 1~ the push-on end 6.
The inside diameter of the clampin4 ring 2 in the region of the slots 12, being about 38 mm, is approximately equal to the outside cliameter of the hose 3 in the non-stressed condition, wllich in turn is laryer than the iargest outsi.1e dlameter of the holdin~ rib 5.
The hose coupling shown in Figures 1 and ~
has the a~vantage that the end pGrtion 4 of the hose 3 is pressed a~ainst the connec-ting portion 1 over the entire axial length of the end portion 4, ard the hose material of the end portion 4 is under a spring bias, as a result of the resiliercy ~f the ~eb portions 13. The spring biassing effect ensures that in the clamping region the clamping ring ~ yields to thermal expansion of the hose material and prevents the hose material from being subjected to an excessive pressirg force. That counteracts permanent deformation of the hose material. On the other hand, after thermal expansion of the hose ma-terial and subsequent cooling thereof, with the hose material ~XS9354 shrinki.ng, the arrangement also ensures that the hose bears firmly against the connecting portion 1 because the elastic web portions spring back into their starting positicn. Because the clamping ring 2 is longex than the end portion 4 of the hose 3 so that the clamping ring 2 projects bevond the push-on end 6 (towards the left in Figure 1), th~t arrangement resists the end portion 4 lifting radially away from the ccnnecting portion 1, particularly the front side face 7, if the hose 3 is radially deflected (bent) in front of the connecting portion 1. In that case the clarnping ring 2, in conjunction with the ta.pering, toothed cGnfiguration of the rear side surface 8 of the holding rib 5, affords a high degree of security in regard to the end portion 4 being ~ulled or slipping axially off the connecting portion 1, as could be the case when thexe is a high fluid pressure in the interi.or of the hose 3 or in the event of a high axia]. force applied thereto from the out.side.
Before the hose 3 is pushed on to the pipe portion 1, the clamping ring 2 is pushed over the hose 3 into the illu.strated position. ~he hose 3 and the clamping ring 2 are then jointly pushed on to the connecting portion 1, i.n which respect a flan~e 16 at the rearward end of the connecting portion 1 or a wall, corresponding to the flange 16, of a housing to which the pipe pGrtion 1 is or exa~Lple inte~rally connected serves as an abutment and prevents the hose from bein~ pushed on too far. In other words, the ~' , ;935~
arrangement ensures that the clamping ring 2 is in a position with its rearward end (annular bead 10) outside the connecting portion 1.
Figure 3 is a perspective ~iew on an enlarged scale of a part of a second embodiment of a clamping ring 2a. The clanping rin~ 2a may be used in place of the clamping ring 2 for the hose coupling shown in Fi.gure 1, and also comprises elastic plast,ics material. ~nstea.d of the annular beads 10 and 11, ii has closed peripheral edge portions l.Oa and lla. The peripheral edge portion lla which is beside the side face 8 of the holding rib 5 is corrugated in the peripheral ~,irection while the other perlpherc edge portion lOa is smooth. Th2 clamping riny 2a also has axial slots 12a which are defined by web portions 13a. The axial length of the clamping ring 2a and the slots 12a and the inside diameter may correspond ~o those of the clamping ring 2.
In this embodiment, the corrugated peripheral edge po:rtion lla makes it easier for the clamping ring 2a to be ~ushed on over the .holding rib 5.
In other respects, this arrangement has the same advantages as the first embodiment described.
Figures 4 to 9 show further embodiments of the clamping ring on the hose 3. In all clampincJ
rings 2b 'o 2g, the mean diameter (the mean value of the inside and outside diameters) is constant over a main portion of the axial length of the clamping ring before the hose 3 and the clamping ring 2b to 2g a.re pushed on to the connecting portion 1 shown in ~A
~.X5~354 F.i.gure 1, which is not illustrated in Figures 4 to 9.
In an in-termediate region whlch adjoins the above-mentioned main portion and which is adjacen~ to the peripheral edge portion llb t~ llg which is disposed beside the rear side face 8 oS the hoLding rib 5 shown in Figure 1, the mean diamPter increases in a direction towards the peripheral edge portion llb to llg in order to facilitate pushin~ the hose 3 and the clampiny ring 2b to 2~ on to the connecting portion 1, beyond the holding rib 5.
In the embodiments illustrated in Figures
Thei.r conical side face which is towards the push-on end b extends over an axia' length of about. 1.5mr.
while the radial side face thereof extends over about O.4mm. Th~ ancJle of inclination of the conical sides of the teeth is therefore about 15.
rrhe clamping ring 2 has twenty-four slots ].2 which pas.s radially therethrough and which extend in the axial direction as far as peripheral edge portions in the form of annular beads 10 and 11.
~he slots 12 are defined by thin axial web portions 13 and are arrangec`t at unif~rm spacing from each other in a distributed array arounc1 the periphery of the clamping ring 2. The width of the slots is about lmm. The annular beads 10 and 11 are closed in the peripheral direction. ~he annular bead 11 bears with a radially inwardly projecting flange portion aaainst the end face 14 of the end portion 4 so that the clampin~ ring 2 cannot be pushed further over the end portion ~. Instead of the flange portion, the hose 3 may be pro~ided, on its outside, with an annular bead 15 to act as an abutment for the clamping ring 2. Omitt.inc~ the radially inwardly proj~cting flaIlge portion on t.he annular bead li. anc' forminq the two annular beads 10 and 11 with the same inside diameter as that of the web portions 13 further ~S~335~
faciliiates manufacturing the clamping ring 2 and pushins- the clamping ring 2 on to the hose 3, and likewise jointly pushing the hose 3 and the clamping r-ng 2 on to the connecting por-:ion 1, beyond the holding rib 5.
The slots 12 extend at least over the full axial length, and preferably over ~ore th~n the enti~e axial ler~th of the holding rib 5, as illustrated.
The annular bead 10 is therefore disposed in front of 1~ the push-on end 6.
The inside diameter of the clampin4 ring 2 in the region of the slots 12, being about 38 mm, is approximately equal to the outside cliameter of the hose 3 in the non-stressed condition, wllich in turn is laryer than the iargest outsi.1e dlameter of the holdin~ rib 5.
The hose coupling shown in Figures 1 and ~
has the a~vantage that the end pGrtion 4 of the hose 3 is pressed a~ainst the connec-ting portion 1 over the entire axial length of the end portion 4, ard the hose material of the end portion 4 is under a spring bias, as a result of the resiliercy ~f the ~eb portions 13. The spring biassing effect ensures that in the clamping region the clamping ring ~ yields to thermal expansion of the hose material and prevents the hose material from being subjected to an excessive pressirg force. That counteracts permanent deformation of the hose material. On the other hand, after thermal expansion of the hose ma-terial and subsequent cooling thereof, with the hose material ~XS9354 shrinki.ng, the arrangement also ensures that the hose bears firmly against the connecting portion 1 because the elastic web portions spring back into their starting positicn. Because the clamping ring 2 is longex than the end portion 4 of the hose 3 so that the clamping ring 2 projects bevond the push-on end 6 (towards the left in Figure 1), th~t arrangement resists the end portion 4 lifting radially away from the ccnnecting portion 1, particularly the front side face 7, if the hose 3 is radially deflected (bent) in front of the connecting portion 1. In that case the clarnping ring 2, in conjunction with the ta.pering, toothed cGnfiguration of the rear side surface 8 of the holding rib 5, affords a high degree of security in regard to the end portion 4 being ~ulled or slipping axially off the connecting portion 1, as could be the case when thexe is a high fluid pressure in the interi.or of the hose 3 or in the event of a high axia]. force applied thereto from the out.side.
Before the hose 3 is pushed on to the pipe portion 1, the clamping ring 2 is pushed over the hose 3 into the illu.strated position. ~he hose 3 and the clamping ring 2 are then jointly pushed on to the connecting portion 1, i.n which respect a flan~e 16 at the rearward end of the connecting portion 1 or a wall, corresponding to the flange 16, of a housing to which the pipe pGrtion 1 is or exa~Lple inte~rally connected serves as an abutment and prevents the hose from bein~ pushed on too far. In other words, the ~' , ;935~
arrangement ensures that the clamping ring 2 is in a position with its rearward end (annular bead 10) outside the connecting portion 1.
Figure 3 is a perspective ~iew on an enlarged scale of a part of a second embodiment of a clamping ring 2a. The clanping rin~ 2a may be used in place of the clamping ring 2 for the hose coupling shown in Fi.gure 1, and also comprises elastic plast,ics material. ~nstea.d of the annular beads 10 and 11, ii has closed peripheral edge portions l.Oa and lla. The peripheral edge portion lla which is beside the side face 8 of the holding rib 5 is corrugated in the peripheral ~,irection while the other perlpherc edge portion lOa is smooth. Th2 clamping riny 2a also has axial slots 12a which are defined by web portions 13a. The axial length of the clamping ring 2a and the slots 12a and the inside diameter may correspond ~o those of the clamping ring 2.
In this embodiment, the corrugated peripheral edge po:rtion lla makes it easier for the clamping ring 2a to be ~ushed on over the .holding rib 5.
In other respects, this arrangement has the same advantages as the first embodiment described.
Figures 4 to 9 show further embodiments of the clamping ring on the hose 3. In all clampincJ
rings 2b 'o 2g, the mean diameter (the mean value of the inside and outside diameters) is constant over a main portion of the axial length of the clamping ring before the hose 3 and the clamping ring 2b to 2g a.re pushed on to the connecting portion 1 shown in ~A
~.X5~354 F.i.gure 1, which is not illustrated in Figures 4 to 9.
In an in-termediate region whlch adjoins the above-mentioned main portion and which is adjacen~ to the peripheral edge portion llb t~ llg which is disposed beside the rear side face 8 oS the hoLding rib 5 shown in Figure 1, the mean diamPter increases in a direction towards the peripheral edge portion llb to llg in order to facilitate pushin~ the hose 3 and the clampiny ring 2b to 2~ on to the connecting portion 1, beyond the holding rib 5.
In the embodiments illustrated in Figures
4 and 5, the peripheral. ed~e portions llb to llc e~tend at a spacing parallel to tlle peripheral surface of the hose 3 (in the non-stressed condition), while the edges o~ the peripheral edge porcions llb and llc, which are leading when the ring is pushed on to the connecting portion 1, are disposed in the plane of the end. face 14 of ihe hose 3.
In the embodiments shown in E'igures 6 to 8, the peripheral edge portions lld ~o llf which are the leadin~ portions when ~he ring is plshed on to the ~onnecting portion 1 on the other hand bear against the end face 14 so that they act as an abutment to pre~.rent the clamping ring from being pushed on to the hose 3 too far~
:~n tne embodiment illustrated in Fi~ure 9, the bent or curved intermediate iegion is bent back radia11y outward1y and o~er the outside o-E the clamping r.ing 2g. Therefore1 the peripheral edge portion llg whic~ after the component has been A
3 ~9354 pushed on to the connecting portion 1, is disposed beside the rear side face 8 of the holding rib, also extends around and at a radial spacin~ from ~he nain portion of the clamping ring 2g, the main portion beinc~ of cor,ctant diameter (before the fitting operation . However, the web portivns 13g be~r against tne hose 3 over a longer axial section.
As shown in Fi~ure 10, the peripheral edge portion llh of the cla~ping ring 2h, which is the leading edge in the fitting operation, has an interruption 17 in the reg:ion of one of the slots 12h or between two adjacent web portions 13h.
Moreover, the slots 12 are closed at their ends as the rear peripheral edge portion lG~ and, in the remai.nin~ re~ion, also the peripheral edge portion llh, are of a continuous confi.guration in the ~e.ripheral direction. The interruption 17 is opened when the hose 3 and the clamping ring 2h are pushed on to the connecting portion 1 in order to facilitate that operation, and is closed after the fi.tting operat:ion by a closure means 18.
The closure mean.s 1~) is a detent or snap closure means havin~ two closure port..ons 20 and ~].
in the fcrm of substantially radial projections which are formed on the peripheral edge portion llh on both sides of the interrupti.on 17~ One closure portion 20 i.s undercut on .its side which is towards the .interruption 17 so that it is approximate:iy in the shape of a question mark. The other closure portion 21 is radial.ly somewhat shorter than the .
' ' 9359~
closure portion 20 and is undercut on ts side which is remote from thé interruption 17. Another rac~.j.al prc~ect:Lon 22 which is also formed close to the interruption 17 on the undercut side of the closure portion 22 facilitates the operation of closing the cl.osure meansO In that arrangement, the projections 20 and 22 are pressed together in the peripheral direction manually or by means of a tool until the substantially radially inwardly projectiny part of the closure portion 20 has slipped over the closure portion 21 and engages under the undercut configurat.7On of the closure portj.on 210 The closnre means may be opened again as desired by bending back the radial secti.on oE the closure portion 20 in a radiaJ. and out~ard direction.
~ ten the clamping ring 2h is pushed on, radially inwardly projecting projections 23 of the periphera]. ed~e portion llh bear against the end face l~ of the hose 3 in order to prevent the clamping ring 2h from being pushed or to the hose 2 too far.
~ odifications in the il].ustrated embodiments may pro~ide for example that, in the embodiment illustrated in Figures l and 2, the clamping ring 2, instead of the annular bead ll, has a substantially hook-shaped peripheral ed~e portion which first extends somewhat radially inwardly and then somewhat axially forwardly towards the axially opposite end of the clamping ring 2 so that the cross-section thereof (in an axial plane of the clamping ring 2) is substantially in the for~.t c,f a U lying on its side.
A
~;~5935~
In all e~odiments moreover, the web portions, instead of being of square or rectan~lllar cro~s-section, ~ay be of a substantially U-~haped or elliptical cross-section. Then, teeth which correspond to the teeth 9 may also be formed on the front side 7 of the holdin~ rib or only on the front side 7.
In the embodiments shown in E'igures 6 to 8, the peripheral edge portions lld ~o llf which are the leadin~ portions when ~he ring is plshed on to the ~onnecting portion 1 on the other hand bear against the end face 14 so that they act as an abutment to pre~.rent the clamping ring from being pushed on to the hose 3 too far~
:~n tne embodiment illustrated in Fi~ure 9, the bent or curved intermediate iegion is bent back radia11y outward1y and o~er the outside o-E the clamping r.ing 2g. Therefore1 the peripheral edge portion llg whic~ after the component has been A
3 ~9354 pushed on to the connecting portion 1, is disposed beside the rear side face 8 of the holding rib, also extends around and at a radial spacin~ from ~he nain portion of the clamping ring 2g, the main portion beinc~ of cor,ctant diameter (before the fitting operation . However, the web portivns 13g be~r against tne hose 3 over a longer axial section.
As shown in Fi~ure 10, the peripheral edge portion llh of the cla~ping ring 2h, which is the leading edge in the fitting operation, has an interruption 17 in the reg:ion of one of the slots 12h or between two adjacent web portions 13h.
Moreover, the slots 12 are closed at their ends as the rear peripheral edge portion lG~ and, in the remai.nin~ re~ion, also the peripheral edge portion llh, are of a continuous confi.guration in the ~e.ripheral direction. The interruption 17 is opened when the hose 3 and the clamping ring 2h are pushed on to the connecting portion 1 in order to facilitate that operation, and is closed after the fi.tting operat:ion by a closure means 18.
The closure mean.s 1~) is a detent or snap closure means havin~ two closure port..ons 20 and ~].
in the fcrm of substantially radial projections which are formed on the peripheral edge portion llh on both sides of the interrupti.on 17~ One closure portion 20 i.s undercut on .its side which is towards the .interruption 17 so that it is approximate:iy in the shape of a question mark. The other closure portion 21 is radial.ly somewhat shorter than the .
' ' 9359~
closure portion 20 and is undercut on ts side which is remote from thé interruption 17. Another rac~.j.al prc~ect:Lon 22 which is also formed close to the interruption 17 on the undercut side of the closure portion 22 facilitates the operation of closing the cl.osure meansO In that arrangement, the projections 20 and 22 are pressed together in the peripheral direction manually or by means of a tool until the substantially radially inwardly projectiny part of the closure portion 20 has slipped over the closure portion 21 and engages under the undercut configurat.7On of the closure portj.on 210 The closnre means may be opened again as desired by bending back the radial secti.on oE the closure portion 20 in a radiaJ. and out~ard direction.
~ ten the clamping ring 2h is pushed on, radially inwardly projecting projections 23 of the periphera]. ed~e portion llh bear against the end face l~ of the hose 3 in order to prevent the clamping ring 2h from being pushed or to the hose 2 too far.
~ odifications in the il].ustrated embodiments may pro~ide for example that, in the embodiment illustrated in Figures l and 2, the clamping ring 2, instead of the annular bead ll, has a substantially hook-shaped peripheral ed~e portion which first extends somewhat radially inwardly and then somewhat axially forwardly towards the axially opposite end of the clamping ring 2 so that the cross-section thereof (in an axial plane of the clamping ring 2) is substantially in the for~.t c,f a U lying on its side.
A
~;~5935~
In all e~odiments moreover, the web portions, instead of being of square or rectan~lllar cro~s-section, ~ay be of a substantially U-~haped or elliptical cross-section. Then, teeth which correspond to the teeth 9 may also be formed on the front side 7 of the holdin~ rib or only on the front side 7.
Claims (14)
1. A hose coupling including a connecting member on which an end portion of a hose can be pushed, which connecting member is provided on its outside with a holding rib which extends there-around, with the front side surface of the holding rib, which is directed towards the push-on end of the connecting member, decreas-ing in diameter towards said push-on end for the end portion of the hose to be pushed on the rib over said front side surface, and an elastic clamping ring for surrounding the pushed-on end portion of the hose, when the latter is on the connecting member, in the region of the holding rib, which ring is shaped so that it can be pushed, together with the hose, over the holding rib, has closed peripheral edge portions at the axial ends, and is provided with slots which pass radially therethrough, which extend in the axial direction of the clamping ring and which are uniformly dis-tributed in the peripheral direction, wherein the rear side surface of the holding rib decreases in diameter away from said push-on end of the connecting member, the clamping ring slots extend at least over the full axial length of the holding rib, web portions between the slots are elastically flexible in the radial direction, and the mean diameter and the inside diameter of the clamping ring in the region of the web portions are constant, at least over the major part of the axial length of the holding rib, before a hose end and the clamping ring are pushed on the connecting member, and such that, after the hose end has been pushed on to the connecting member, the web portions are elastically bulged out in their axially central region with which they bridge over the crest of the holding rib, and apply a spring biassing effect to the hose.
2. A hose coupling according to claim l, wherein the rear side surface of the holding rib is provided with shallow teeth extending therearound.
3. A hose coupling according to claim 2, wherein the teeth are of a sawtooth configuration in axial cross-section and each sawtooth side face which is remote from the push-on end of the connecting member lies in a radial plane.
4. A hose coupling according to any one of claims 1 to 3, wherein the angle of inclination of the rear side surface of the holding rib is less than that of the front side surface of the holding rib, and the axial length of both side surfaces is substantially the same.
5. A hose coupling according to any one of claims 1 to 3, wherein the end of the clamping ring which is remote from the pushed-on end of the hose is disposed in front of the push-on end of the connecting member.
6. A hose coupling according to any one of claims 1 to 3, wherein one peripheral edge portion of the clamping ring bears against the end face of a hose end when pushed on the connecting member.
7. A hose coupling according to any one of claims 1 to 3, wherein a peripheral edge portion of the clamping ring, which is disposed beside the rear side of the holding rib, is corrugated in the peripheral direction.
8. A hose coupling according to claim 1, wherein the mean diameter of the clamping ring, before a hose and the clamping ring are pushed onto the connecting member, in an intermediate region which adjoins the constant-diameter main portion and which is adjacent the peripheral edge portion which is beside the rear side of the holding rib, increases in a direction toward said peripheral edge portion.
9. A hose coupling according to claim 8, wherein the intermediate region is bent back radially outwardly and over the outside of the clamping ring so that the peripheral edge portion which is disposed beside the rear side of the holding rib surrounds the main portion at a radial spacing therefrom.
10. A hose coupling according to claim 1, wherein the peripheral edge portion of the clamping ring, which is disposed beside the rear side of the holding rib, is interrupted in the region between two adjacent web portions and the interruption is closed by a closure means.
11. A hose coupling according to claim 10, wherein the closure means is a retaining or detent closure means.
12. A hose coupling according to claim 10, wherein the closure means has portions which are formed on both sides of the interruption and which engage one behind the other.
13. A hose coupling according to claim 12, wherein formed on both sides of the interruption in the vicinity thereof is a respective projection, the peripheral edge portion of which has the interruption.
14. A hose coupling according to claim 13, wherein one projection forms one closure portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833345903 DE3345903A1 (en) | 1983-12-20 | 1983-12-20 | HOSE COUPLING |
| DEP3345903.7-12 | 1983-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1259354A true CA1259354A (en) | 1989-09-12 |
Family
ID=6217379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000470481A Expired CA1259354A (en) | 1983-12-20 | 1984-12-19 | Hose coupling with a tubular hose clamping member |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS60155089A (en) |
| CA (1) | CA1259354A (en) |
| DE (1) | DE3345903A1 (en) |
| ES (1) | ES292681Y (en) |
| FR (1) | FR2556815B1 (en) |
| GB (1) | GB2151735B (en) |
| IT (2) | IT1179881B (en) |
| SE (1) | SE8406384L (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3424675C2 (en) * | 1984-07-05 | 1986-10-16 | Rasmussen Gmbh, 6457 Maintal | Hose coupling |
| IT231553Y1 (en) * | 1993-12-28 | 1999-08-04 | Dayco Europe Spa | JOINT FOR THE CONNECTION OF TWO PIPES |
| DE19733488C2 (en) * | 1997-08-01 | 1999-09-02 | Contitech Schlauch Gmbh | Hose, in particular motor vehicle cooling water hose |
| US20070137582A1 (en) * | 2003-06-12 | 2007-06-21 | Avon Polymers Products Limited | Fluid handling assemblies |
| DE202004011236U1 (en) * | 2004-07-17 | 2004-09-09 | Rehau Ag + Co. | Pipe connecting assembly |
| DE102004034686B3 (en) * | 2004-07-17 | 2006-01-19 | Rehau Ag + Co. | Pipe connection assembly, pipe assembly with such a pipe connection assembly and sliding sleeve for this pipe connection assembly or for this pipe assembly |
| EP1989937B1 (en) * | 2007-05-11 | 2013-07-03 | GEA WestfaliaSurge GmbH | Milking unit for milking an animal |
| DE102015114116A1 (en) * | 2015-08-26 | 2017-03-02 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Pipe connector for connecting a fuel line of a fuel supply for a motor vehicle engine |
| DE102017127252A1 (en) * | 2017-11-20 | 2019-05-23 | Rehau Ag + Co | Method for sealing a hose connection subjected to bending |
| IT202100024254A1 (en) * | 2021-09-21 | 2023-03-21 | Bonomini S R L | LIQUID DRAINAGE KIT CONTAINED IN A SINK, WASHBASIN OR SIMILAR |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3114969A (en) * | 1959-01-27 | 1963-12-24 | Lanston Ind Inc | Method and structure for assembling flexible tubing within a bore, and joint produced thereby |
| GB986793A (en) * | 1960-09-13 | 1965-03-24 | Smith & Sons Ltd S | Improvements in or relating to means for reinforcing the ends of pipes formed from elastic material |
| CA1017768A (en) * | 1974-07-29 | 1977-09-20 | Lextel Industries | Fitting for flexible plastic pipe |
| FR2335137A7 (en) * | 1975-12-12 | 1977-07-08 | Sigmund Christophe | Plastics pipe coupling assembly - has locking sleeve formed of moulded strip with tongues along one edge and ends joined by tag received in slot |
| DE3010425A1 (en) * | 1980-03-19 | 1981-09-24 | Rasmussen Gmbh, 6457 Maintal | DEVICE FOR FASTENING A HOSE ON A PIPE |
| US4306740A (en) * | 1980-04-04 | 1981-12-22 | Dayco Corporation | Hose clamp structure and hose construction employing same |
| DE3136018C1 (en) * | 1981-09-11 | 1983-02-03 | Rasmussen Gmbh, 6457 Maintal | Device for attaching a hose to a pipe socket |
-
1983
- 1983-12-20 DE DE19833345903 patent/DE3345903A1/en active Granted
-
1984
- 1984-11-22 GB GB08429481A patent/GB2151735B/en not_active Expired
- 1984-12-05 ES ES1984292681U patent/ES292681Y/en not_active Expired
- 1984-12-14 SE SE8406384A patent/SE8406384L/en not_active Application Discontinuation
- 1984-12-19 IT IT68262/84A patent/IT1179881B/en active
- 1984-12-19 CA CA000470481A patent/CA1259354A/en not_active Expired
- 1984-12-19 IT IT8454199U patent/IT8454199V0/en unknown
- 1984-12-19 JP JP59266542A patent/JPS60155089A/en active Granted
- 1984-12-20 FR FR8419535A patent/FR2556815B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60155089A (en) | 1985-08-14 |
| ES292681U (en) | 1986-12-16 |
| IT8454199V0 (en) | 1984-12-19 |
| IT8468262A0 (en) | 1984-12-19 |
| GB8429481D0 (en) | 1985-01-03 |
| DE3345903C2 (en) | 1987-06-04 |
| DE3345903A1 (en) | 1985-07-04 |
| SE8406384L (en) | 1985-06-21 |
| FR2556815B1 (en) | 1987-04-30 |
| FR2556815A1 (en) | 1985-06-21 |
| SE8406384D0 (en) | 1984-12-14 |
| IT8468262A1 (en) | 1986-06-19 |
| IT1179881B (en) | 1987-09-16 |
| JPH0337076B2 (en) | 1991-06-04 |
| GB2151735B (en) | 1987-12-23 |
| ES292681Y (en) | 1987-08-01 |
| GB2151735A (en) | 1985-07-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |