Separable device for connecting tubular elements, hoses, rods or the like

• US 5,171,045 A
• Filed: 03/17/1989
• Issued: 12/15/1992
• Est. Priority Date: 03/17/1988
• Status: Expired due to Term

• Current Assignee: Rudolf Riedel - KMT GmbH
• Original Assignee: Lacrex S.A.
• Inventors: Pasbrig, Max
• Primary Examiner(s): Arola, Dave W.
• Application Number:
  US07/324,692
• Time in Patent Office: 1,369 Days
• Field of Search: 285/322, 285/323, 285/308, 285/331, 285/340, 285/316, 285/317, 285/906
• US Class Current: 285/308
• CPC Class Codes: F16L 33/227 the hose being introduced into or onto the connecting member and automatically locked F16L37/084 takes precedence
• CPC Class Codes: F16L 37/0925 with rings which bite into the wall of the pipe
• CPC Class Codes: F16L 37/0926 with an inner support sleeve arranged within the pipe
• CPC Class Codes: F16L 37/0927 the wedge element being axially displaceable for releasing the coupling
• CPC Class Codes: Y10S 285/906 Equivalents

Abstract

A separable device for connecting tubular elements, hoses, rods or the like, comprising a tubular housing and a clamping member. In such a connecting device, a passage is formed in the tubular housing and comprises at least near one end a portion which is enlarged in diameter and which conically tapers toward the exit cross-section of the passage. The clamping member consists of a tubular member, which has an inside diameter that corresponds to the outside diameter of the tubular member, hose, rod or the like, and an outside diameter that corresponds to the diameter of the exit cross-section of the tubular housing. The tubular clamping member is adapted to be inserted into the tubular housing and into the enlarged portion to be retained therein by an enlarged end rim consisting of an annular bead, the outside diameter of which is smaller than the inside diameter of the enlarged portion but larger than the exit cross-section of the passage. The end portion of the clamping member which is provided with the enlarged rim is provided with a plurality of longitudinal slots, which extend through the shell and define resilient tongues in the tubular clamping member.

Claims

1. A separable device for connecting tubular elements, comprising:

a tubular housing forming a cylindrical chamber at one end and a passage at the opposite end, said passage extending into said cylindrical chamber,

a tubular extension member, including a slidable sleeve which has a passage formed therein for reception of a tubular element, located in said tubular housing,

an annular insert having a rim at the outer end of said insert, said annular insert being positioned within said cylindrical chamber with said rim positioned outside of said cylindrical chamber,

a tubular clamping member having resilient tongues extending inwardly adjacent to said annular insert, said tongues compressing a tubular element disposed in said passage in said slidable sleeve and within said tubular housing,

said annular insert being provided with a slotted ring having offset portions which are directed towards a surface defining said cylindrical chamber, said ring compressing against said resilient tongues, and said slidable sleeve located adjacent to said resilient tongues, whereby upon inward movement of said sleeve, said sleeve engages said tongues and moves said tongues outwardly thereby releasing pressure from said tongues on said tubular element located in said tubular housing.

2. A separable device for connecting a tubular element comprising a tubular housing and a clamping member, a passage formed in said tubular housing comprising at least near one end a portion which is enlarged in diameter and which conically tapers toward the exit cross-section of said passage, said tubular housing having a central tubular extension extending through the enlarged portion and on which a hose to be connected is adapted to be slidably fitted, the clamping member comprising a tubular member having an inside diameter that corresponds to the outside diameter of the tubular element and an outside diameter that corresponds to the diameter of the exit cross-section of said tubular housing, the tubular clamping member being provided with an enlarged annular actuating member which is spaced from the end face of said tubular housing and adapted to be inserted into the enlarged portion of said tubular housing and to be retained therein by an enlarged end rim having an annular bead, the outside diameter of which is smaller than the inside diameter of the enlarged portion of said tubular housing but larger than the exit cross-section of the passage of said tubular housing, that end portion of the clamping member which is provided with said enlarged rim being provided with a plurality of longitudinal slots which extend through said tubular clamping member and define resilient tongues n said tubular clamping member, and said actuating member being provided on one side with an annular groove which surrounds said resilient tongues and into which one end of said tubular housing is adapted to be slidably inserted, said annular groove containing inserted resilient elements resisting movement of said tubular housing inwardly within said annular groove.

3. A separable device for connecting a tubular element comprising a tubular housing and a clamping member, a passage formed in said tubular housing comprising at least near one end a portion which is enlarged in diameter and which conically tapers toward the exit cross-section of said passage, said tubular housing having a central tubular extension extending through the enlarged portion and on which a hose to be connected is adapted to be slidably fitted, the clamping member comprising a tubular member having an inside diameter that corresponds to the outside diameter of the tubular element and an outside diameter that corresponds to the diameter of the exit cross-section of said tubular housing, the tubular clamping member being provided with an enlarged annular actuating member which is spaced from the end face of said tubular housing and adapted to be inserted into the enlarged portion of said tubular housing and to be retained thereby an enlarged end rim having an annular bead, the outside diameter of which is smaller than the inside diameter of the enlarged portion of said tubular housing but larger than the exit cross-section of the passage of said tubular housing, that end portion of the clamping member which is provided with said enlarged rim being provided with a plurality of longitudinal slots which extend through said tubular clamping member and define resilient tongues in said tubular clamping member, and said actuating member having a cylindrical surface defining an annular groove on the outside which telescopically overlaps said tubular housing when said tubular housing is in its coupling position and which surrounds said resilient tongues and into which one end of said tubular housing is adapted to be slidably inserted, said annular groove containing inserted resilient elements resisting movement of said tubular housing inwardly within said annular groove.

4. A separable device for connecting a tubular element comprising a tubular housing and a clamping member, a passage formed in said tubular housing comprising at least near one end a portion which is enlarged in diameter and which conically tapers toward the exit cross-section of said passage, said tubular housing having a central tubular extension extending through the enlarged portion and on which said tubular element to be connected is adapted to be slidably fitted, said clamping member comprising a tubular member having an inside diameter that corresponds to the outside diameter of said tubular element and an outside diameter that corresponds to the diameter of the exit cross-section of said tubular housing, the tubular clamping member being adapted to be inserted into the enlarged portion of said tubular housing and to be retained therein by an enlarged end rim having an annular bead, the outside diameter of which is smaller than the inside diameter of the enlarged portion of said tubular housing but larger than the exit cross-section of the passage of said tubular housing which is conically tapered toward its outer end, and that end portion of said clamping member which is provided with said enlarged rim being provided with a plurality of longitudinal slots which extend through said tubular clamping member and define resilient tongues in said tubular clamping member, said resilient tongues being provided with grooves and knife edge-like projections selectively at the free ends thereof adjacent to said rim, and said knife edge-like projections consist of blades which are inserted in said grooves.