GB2121903A - Connector - Google Patents

Connector Download PDF

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Publication number
GB2121903A
GB2121903A GB08312996A GB8312996A GB2121903A GB 2121903 A GB2121903 A GB 2121903A GB 08312996 A GB08312996 A GB 08312996A GB 8312996 A GB8312996 A GB 8312996A GB 2121903 A GB2121903 A GB 2121903A
Authority
GB
United Kingdom
Prior art keywords
shaft
sleeve
inner shaft
connection sleeve
connector
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.)
Granted
Application number
GB08312996A
Other versions
GB2121903B (en
GB8312996D0 (en
Inventor
Yngve Eero
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB8312996D0 publication Critical patent/GB8312996D0/en
Publication of GB2121903A publication Critical patent/GB2121903A/en
Application granted granted Critical
Publication of GB2121903B publication Critical patent/GB2121903B/en
Expired legal-status Critical Current

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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
    • F16D1/09—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces
    • F16D1/093—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces using one or more elastic segmented conical rings forming at least one of the conical surfaces, the rings being expanded or contracted to effect clamping
    • F16D1/095—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces using one or more elastic segmented conical rings forming at least one of the conical surfaces, the rings being expanded or contracted to effect clamping with clamping effected by ring contraction only
    • F16D1/096—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping due to axial loading of at least one pair of conical surfaces using one or more elastic segmented conical rings forming at least one of the conical surfaces, the rings being expanded or contracted to effect clamping with clamping effected by ring contraction only the ring or rings being located between the shaft and the hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/04—Handle constructions telescopic; extensible; sectional
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10—Telescoping systems
    • F16B7/105—Telescoping systems locking in discrete positions, e.g. in extreme extended position

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Clamps And Clips (AREA)

Abstract

A connector mainly for securing to each other in desired position the extensible outer tube (2) of a tool shaft (1) and the inner shaft (3) telescopically pushable thereinto. The connector comprises a connection sleeve (4) of the outer tube (2), into which the inner shaft is disposed; a wedge sleeve (5) wedgeable between the connection sleeve and the inner tube; and an annular tightening member (6) attached by threads (7) upon the connection sleeve and disposed to move the wedge sleeve in between the connection sleeve and the inner shaft. <IMAGE>

Description

SPECIFICATION Connector The present invention concerns a connector mainly for joining together the extension parts of a tool shaft, said extension parts consisting of a tubular outer tube and of an inner shaft telescopically pushable thereinto.
Extendable tool shafts are needed e.g. in certain special tools, such as bough saws, bough cutters, rime whips, etc. In the art is known no usable tool shaft construction which could be extended with ease for the duration of use and shortened with ease after use. In the art is among others known a shaft construction where the extension parts of the shaft are joined with each other by a conventional sleeve or by other known end-to-end junctures.
The object of the present invention is to eliminate the drawbacks mentioned. It is a particular object of the invention to provide a connector mainly for tool shafts which enables rapid extension of the shaft of tools for the duration of working and once again their rapid shortening e.g. for transport. A further object of the invention is to provide a connector mainly for tool shafts which enables the tool shaft to be extended to desired length, i.e., steplessly so that the shaft of the tool can be extended exactly to desired length, taking into account the purpose of the work and the worker's special requirements.
Regarding the features characteristic of the invention, reference is made to the claims section.
The invention is described in detaii in the following with the aid of an embodiment example, referring to the attached drawing, presenting partly in section a connector according to the invention for the extension juncture of a tool shaft.
In the figure is seen a tool shaft consisting of two parts pushable one into the other telescopically, that is, of a tubular outer tube 2 and a pushable inner shaft 3 fitted into said tube. As taught by the invention, the connector comprises a connection sleeve 4 attached to the end adjacent to the inner shaft 3 of the outer tube 2, and pushable in the direction of the inner shaft.
The connection sleeve 4 has been mounted on the outer tube 2 in such manner that it projects partly over the end of the outer tube to encircle the inner shaft so that the inner shaft enters the connection sleeve 4. Furthermore, the connector comprises an annular wedge sleeve 5, disposed to be wedgable between the connection sleeve and the inner tube. The connection sleeve 4 has been provided with an annular tightening member 6 attached with a thread 7 upon the connection sleeve and disposed to move the wedge sleeve in between the connection sleeve and the inner shaft to the purpose of securing the inner shaft to the outer tube and, similarly, outward for undoing the locking between the connection sleeve and the inner shaft by rotating the tightening member.
In the embodiment of the figure, the shaft 1 is visible in part, i.e., of the shaft can be seen the parts of the outer tube 2 and inner shaft 3 which are pushable into each other. The connection sleeve 4, wedge sleeve 5 and tightening member 6 are seen in the figure sectioned parallel to the shaft. In the embodiment shown, the wedge sleeve 5 comprises an outward projecting flangelike shoulder border 8, for which on the inner surface of the tightening member 6 has been shaped a groove, i.e., carrying surfaces 9, 10, against which the said shoulder border rests in the direction of the shaft so that the wedge sleeve will move along with the tightening member 6 when this member is rotated with the shoulder border 8 resting against said carrying surfaces.The wedge sleeve 5 is suitably interrupted so that its circumferential length is variable and the shoulder border 8 of the wedge sleeve can be inserted in the groove adjacent to the tightening member, that is between the carrying surfaces 9, 10.
The connection sleeve 4 may be attached to the outer tube suitably e.g. by giueing, by threads, by a clamp joint or by any conceivable mode of attachment. The threads 7 between the tightening member 6 and the connection sleeve 4 comprise a thread provided on the inner surface of the sleeve like tightening member 6 and a mating thread provided on the outer surface of the connection sleeve 4, mainly on the end of the connection sleeve adjacent to the inner shaft.
The tool shaft connector of the invention enables the outer tube of the shaft and the inner shaft to be joined and secured to each other in any desired position, in other words, the inner shaft may be pushed to desired depth into the outer tube and secured thereto with the aid of the connector.
The embodiment example is meant to illustrate the invention, without in any way confining it.
1. A connector for joining together the extension parts of a tool shaft, said extension parts consisting of a tubular outer tube and an inner shaft telescopically pushable thereinto, and said connector comprising a connection sleeve attached to the end adjacent to the inner shaft of the outer tube and projecting in the direction of the inner shaft, the inner shaft being disposed to be pushable into said connection sleeve, and an annular tightening member which has been attached with threads upon the connection sleeve, characterised in that the connector comprises a wedge sleeve disposed to be wedgable between the connection sleeve and the inner tube, and that the tightening member has been disposed to move the wedge sleeve in between the connection sleeve and the inner shaft for securing the inner shaft to the outer tube, respectively to move the wedge sleeve out from between the connection sleeve and the inner shaft for undoing the interlocking, by rotating the tightening member.
2. A connector as claimed in claim 1, characterised in that the wedge sleeve comprises an outwardly projecting shoulder border, and that
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (3)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Connector The present invention concerns a connector mainly for joining together the extension parts of a tool shaft, said extension parts consisting of a tubular outer tube and of an inner shaft telescopically pushable thereinto. Extendable tool shafts are needed e.g. in certain special tools, such as bough saws, bough cutters, rime whips, etc. In the art is known no usable tool shaft construction which could be extended with ease for the duration of use and shortened with ease after use. In the art is among others known a shaft construction where the extension parts of the shaft are joined with each other by a conventional sleeve or by other known end-to-end junctures. The object of the present invention is to eliminate the drawbacks mentioned. It is a particular object of the invention to provide a connector mainly for tool shafts which enables rapid extension of the shaft of tools for the duration of working and once again their rapid shortening e.g. for transport. A further object of the invention is to provide a connector mainly for tool shafts which enables the tool shaft to be extended to desired length, i.e., steplessly so that the shaft of the tool can be extended exactly to desired length, taking into account the purpose of the work and the worker's special requirements. Regarding the features characteristic of the invention, reference is made to the claims section. The invention is described in detaii in the following with the aid of an embodiment example, referring to the attached drawing, presenting partly in section a connector according to the invention for the extension juncture of a tool shaft. In the figure is seen a tool shaft consisting of two parts pushable one into the other telescopically, that is, of a tubular outer tube 2 and a pushable inner shaft 3 fitted into said tube. As taught by the invention, the connector comprises a connection sleeve 4 attached to the end adjacent to the inner shaft 3 of the outer tube 2, and pushable in the direction of the inner shaft. The connection sleeve 4 has been mounted on the outer tube 2 in such manner that it projects partly over the end of the outer tube to encircle the inner shaft so that the inner shaft enters the connection sleeve 4. Furthermore, the connector comprises an annular wedge sleeve 5, disposed to be wedgable between the connection sleeve and the inner tube. The connection sleeve 4 has been provided with an annular tightening member 6 attached with a thread 7 upon the connection sleeve and disposed to move the wedge sleeve in between the connection sleeve and the inner shaft to the purpose of securing the inner shaft to the outer tube and, similarly, outward for undoing the locking between the connection sleeve and the inner shaft by rotating the tightening member. In the embodiment of the figure, the shaft 1 is visible in part, i.e., of the shaft can be seen the parts of the outer tube 2 and inner shaft 3 which are pushable into each other. The connection sleeve 4, wedge sleeve 5 and tightening member 6 are seen in the figure sectioned parallel to the shaft. In the embodiment shown, the wedge sleeve 5 comprises an outward projecting flangelike shoulder border 8, for which on the inner surface of the tightening member 6 has been shaped a groove, i.e., carrying surfaces 9, 10, against which the said shoulder border rests in the direction of the shaft so that the wedge sleeve will move along with the tightening member 6 when this member is rotated with the shoulder border 8 resting against said carrying surfaces.The wedge sleeve 5 is suitably interrupted so that its circumferential length is variable and the shoulder border 8 of the wedge sleeve can be inserted in the groove adjacent to the tightening member, that is between the carrying surfaces 9, 10. The connection sleeve 4 may be attached to the outer tube suitably e.g. by giueing, by threads, by a clamp joint or by any conceivable mode of attachment. The threads 7 between the tightening member 6 and the connection sleeve 4 comprise a thread provided on the inner surface of the sleeve like tightening member 6 and a mating thread provided on the outer surface of the connection sleeve 4, mainly on the end of the connection sleeve adjacent to the inner shaft. The tool shaft connector of the invention enables the outer tube of the shaft and the inner shaft to be joined and secured to each other in any desired position, in other words, the inner shaft may be pushed to desired depth into the outer tube and secured thereto with the aid of the connector. The embodiment example is meant to illustrate the invention, without in any way confining it. CLAIMS
1. A connector for joining together the extension parts of a tool shaft, said extension parts consisting of a tubular outer tube and an inner shaft telescopically pushable thereinto, and said connector comprising a connection sleeve attached to the end adjacent to the inner shaft of the outer tube and projecting in the direction of the inner shaft, the inner shaft being disposed to be pushable into said connection sleeve, and an annular tightening member which has been attached with threads upon the connection sleeve, characterised in that the connector comprises a wedge sleeve disposed to be wedgable between the connection sleeve and the inner tube, and that the tightening member has been disposed to move the wedge sleeve in between the connection sleeve and the inner shaft for securing the inner shaft to the outer tube, respectively to move the wedge sleeve out from between the connection sleeve and the inner shaft for undoing the interlocking, by rotating the tightening member.
2. A connector as claimed in claim 1, characterised in that the wedge sleeve comprises an outwardly projecting shoulder border, and that carrying surfaces have been shaped on the tightening member to about the shoulder border in the direction of the shaft on both sides of the shoulder border, the wedge sleeve being disposed to move along with the tightening member as the carrying surfaces act on the shoulder border
3. A connector for joining together the extension parts of a tool shaft substantially as hereinbefore described with reference to and as illustrated by the accompanying drawing.
GB08312996A 1982-05-11 1983-05-11 Connector Expired GB2121903B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI821657A FI65474C (en) 1982-05-11 1982-05-11 SKARVSTYCKE

Publications (3)

Publication Number Publication Date
GB8312996D0 GB8312996D0 (en) 1983-06-15
GB2121903A true GB2121903A (en) 1984-01-04
GB2121903B GB2121903B (en) 1985-09-25

Family

ID=8515500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08312996A Expired GB2121903B (en) 1982-05-11 1983-05-11 Connector

Country Status (4)

Country Link
DE (1) DE3317270A1 (en)
FI (1) FI65474C (en)
GB (1) GB2121903B (en)
SE (1) SE8302663L (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2255385A (en) * 1991-05-02 1992-11-04 Lin Ming Hui A wedge-chuck connector
DE29615308U1 (en) * 1996-09-03 1996-10-31 Rehau Ag + Co, 95111 Rehau Connection device for radiators
EP1053672A1 (en) * 1999-05-20 2000-11-22 Zanon S.n.c. di Zanon Franco E C. Telescopic handling pole for agricultural tools
GB2403765A (en) * 2003-07-10 2005-01-12 Yinka Davies Twist grip locking means for telescopic members
NL1031434C2 (en) * 2006-03-23 2007-09-25 Nova Products B V Brush with replaceable bristle carrier, has carrier fixed in place by clamping ring with elongated cross sectional profile and including portion movable relative to clamping sleeve

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8814209U1 (en) * 1988-11-12 1989-01-12 Unger Licensing Ltd., Weston, Conn. Handlebar designed as a telescopic tube
DE4305356C1 (en) * 1993-02-20 1994-03-31 Georg Aigner Pressure clamp for wood mill - has screwed clamping rings locking shoe and guide onto piston rod of pivoting arm
FI19992105A (en) * 1999-09-30 2001-03-30 Exel Oyj Sleeve connection between outer and inner tube of telescopically adjustable tube

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB527578A (en) * 1939-04-15 1940-10-11 Aerolex Ltd Improvements in connectors or clamps for tubes or rods
GB564233A (en) * 1943-06-15 1944-09-19 T C Enstone & Company Successo Improvements in pipe couplings
GB569938A (en) * 1944-01-14 1945-06-14 Shanks & Company Ltd Improvements in or relating to pipe couplings
GB579938A (en) * 1944-01-14 1946-08-21 John Scott Aitchison Forsyth Improvements in or relating to the polymerisation of ethylene
GB644268A (en) * 1948-09-13 1950-10-04 Hardie Smellie & Partners Ltd Improvements in and relating to a.c. motors for cranes and other load raising and lowering apparatuese
GB981155A (en) * 1961-08-25 1965-01-20 Paragon Plastics Ltd Pipe joint
GB1096620A (en) * 1963-12-27 1967-12-29 Vernon Leroy Barr Improvements in and relating to pipe joint seals
GB1128755A (en) * 1965-04-05 1968-10-02 Plastic Omnium Cie Device for connecting pipe sections
GB1163414A (en) * 1965-09-20 1969-09-04 Ind Products Proprietary Ltd Improvements relating to joints for Tubular Members
GB1275348A (en) * 1969-07-07 1972-05-24 Hermes Werke Leopold Herrmann A screw socket fitting for pipe joints

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB527578A (en) * 1939-04-15 1940-10-11 Aerolex Ltd Improvements in connectors or clamps for tubes or rods
GB564233A (en) * 1943-06-15 1944-09-19 T C Enstone & Company Successo Improvements in pipe couplings
GB569938A (en) * 1944-01-14 1945-06-14 Shanks & Company Ltd Improvements in or relating to pipe couplings
GB579938A (en) * 1944-01-14 1946-08-21 John Scott Aitchison Forsyth Improvements in or relating to the polymerisation of ethylene
GB644268A (en) * 1948-09-13 1950-10-04 Hardie Smellie & Partners Ltd Improvements in and relating to a.c. motors for cranes and other load raising and lowering apparatuese
GB981155A (en) * 1961-08-25 1965-01-20 Paragon Plastics Ltd Pipe joint
GB1096620A (en) * 1963-12-27 1967-12-29 Vernon Leroy Barr Improvements in and relating to pipe joint seals
GB1128755A (en) * 1965-04-05 1968-10-02 Plastic Omnium Cie Device for connecting pipe sections
GB1163414A (en) * 1965-09-20 1969-09-04 Ind Products Proprietary Ltd Improvements relating to joints for Tubular Members
GB1275348A (en) * 1969-07-07 1972-05-24 Hermes Werke Leopold Herrmann A screw socket fitting for pipe joints

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2255385A (en) * 1991-05-02 1992-11-04 Lin Ming Hui A wedge-chuck connector
DE29615308U1 (en) * 1996-09-03 1996-10-31 Rehau Ag + Co, 95111 Rehau Connection device for radiators
EP1053672A1 (en) * 1999-05-20 2000-11-22 Zanon S.n.c. di Zanon Franco E C. Telescopic handling pole for agricultural tools
GB2403765A (en) * 2003-07-10 2005-01-12 Yinka Davies Twist grip locking means for telescopic members
NL1031434C2 (en) * 2006-03-23 2007-09-25 Nova Products B V Brush with replaceable bristle carrier, has carrier fixed in place by clamping ring with elongated cross sectional profile and including portion movable relative to clamping sleeve

Also Published As

Publication number Publication date
FI821657L (en) 1983-11-12
FI65474C (en) 1984-05-10
FI65474B (en) 1984-01-31
FI821657A0 (en) 1982-05-11
GB2121903B (en) 1985-09-25
DE3317270A1 (en) 1983-11-17
SE8302663D0 (en) 1983-05-10
GB8312996D0 (en) 1983-06-15
SE8302663L (en) 1983-11-12

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee