专利检索_ .有作用于立杆之夹紧器的专利检索_ .有作用于立杆之夹紧器的专利检索查询

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A47B9/083： ..{在管内进行伸展的}

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
121	Adjustable height rotatable work table	US10310395	2002-12-05	US20040107882A1	2004-06-10	Mark A. Zaremski; Albert Triplett
A worktable consists of a pedestal having an upwardly extending tubular member and a cylindrical member telescopically slideable therein. Thumbscrews along the length of the tubular member are tightenable against the surface of the tubular member to lock the upper end thereof is at the desired elevation. A tabletop having a downwardly extending tubular collar is rotatably fitted around the upper end of the cylindrical member. A flexible sleeve fitted between the inner surface of the collar and the outer surface of the tubular member creates resistance to rotation of the tabletop with respect to the pedestal. Finally, an adjustable thumbscrew extending through the collar and against the outer wall of the flexible sleeve enables an operator to vary the resistance to rotation of the top with respect to the pedestal.
122	Height adjustable table leg	US09862768	2001-05-21	US06598841B2	2003-07-29	Jason D. Erickson; Craig H. Schultz; Michael J. Bell
The present invention provides a height adjustable table leg including an upper housing attachable to an underside of a table and being formed with an upper tubular portion. A lower tube member is dimensioned and configured to be telescopingly received by the upper tubular portion. A cam member is pivotably mounted to the upper tubular portion and selectively cooperates with an undulating strip attached to the lower tube member in one of a plurality of telescoped positions relative to the upper tubular portion.
123	Table with telescopic leg unit	US10045201	2001-11-09	US06581528B2	2003-06-24	Chuen-Jong Tseng
A table includes a telescopic leg unit and a positioning mechanism. The telescopic leg unit includes an inner leg post, a tubular outer leg post and a resilient tubular bushing. The positioning mechanism includes a press member, a support member, and an operating lever. The press member is movable in radial inward and radial outward directions relative to the leg unit. The support member is mounted securely on the outer leg post and is formed with a lever coupling hole that is aligned with the press member in a radial direction relative to the leg unit. The operating lever is operable so as to force the press member to move in the radial inward direction and abut against the tubular bushing, thereby enabling the tubular bushing to frictionally engage the inner leg post so as to resist movement of the inner leg post relative to the outer leg post.
124	TABLE WITH TELESCOPIC LEG UNIT	US10045201	2001-11-09	US20030089287A1	2003-05-15	Chuen-Jong Tseng
A table includes a telescopic leg unit and a positioning mechanism. The telescopic leg unit includes an inner leg post, a tubular outer leg post and a resilient tubular bushing. The positioning mechanism includes a press member, a support member, and an operating lever. The press member is movable in radial inward and radial outward directions relative to the leg unit. The support member is mounted securely on the outer leg post and is formed with a lever coupling hole that is aligned with the press member in a radial direction relative to the leg unit. The operating lever is operable so as to force the press member to move in the radial inward direction and abut against the tubular bushing, thereby enabling the tubular bushing to frictionally engage the inner leg post so as to resist movement of the inner leg post relative to the outer leg post.
125	Height adjustable table leg	US09862768	2001-05-21	US20020014564A1	2002-02-07	Jason D. Erikson; Craig H. Schultz; Michael J. Bell
The present invention provides a height adjustable table leg including an upper housing attachable to an underside of a table and being formed with an upper tubular portion. A lower tube member is dimensioned and configured to be telescopingly received by the upper tubular portion. A cam member is pivotably mounted to the upper tubular portion and selectively cooperates with an undulating strip attached to the lower tube member in one of a plurality of telescoped positions relative to the upper tubular portion.
126	Overbed table with locking mechanism	US535811	1974-12-23	US3976016A	1976-08-24	John Douglas Longbottom
An overbed table such as used in a hospital, which is elevated manually by upward pressure and which has a wedging mechanism normally preventing lowering of the table. A release mechanism is operated to release the table for lowering.
127	Device for locking two concentrically positioned and axially displaceable members	US41271473	1973-11-05	US3871780A	1975-03-18	SVENSSON JON-ERIK
A device for locking two concentrically positioned and axially displaceable members against displacement in one direction, characterized by a recess formed in one of said members and opening in the direction of the second member, and by locking elements located in said recess, said recess having a first part with a bottom portion positioned at a greater distance from said second member than the distance corresponding to the size of the locking elements in a direction transversally to the axial direction of said members, and a second part of said recess having a bottom portion decreasing its distance to said second member in the axial direction of said members and from the first mentioned bottom portion to a distance less than the distance corresponding to the size of the locking elements in said direction transversally to the axial direction of the members, whereby the locking elements are free from locking engagement between said elements, when located in said first part of recess and engaging said members for locking the members against displacement in at least one direction, when located in said second part of recess, and by an actuating element for displacing the locking elements between said parts of recess.
128	Adjustable furniture leg	US3701506D	1971-06-28	US3701506A	1972-10-31	FAVREAU MARCEL
A leg structure formed by a pair of telescoping leg members, one of which is provided with a plurality of spaced apertures. A retractable detent is associated with the other leg member. Movable wedging means are associated with the retractable detent. Means are further provided to move the detent and simultaneously the wedging means to and from a locking position wherein the detent is received in one of the apertures and the wedging means forces the first member into frictional contact with the second member. In the open position the detent and wedge means are clear of the slot and the first member.
129	Multipurpose table	US3653339D	1970-04-16	US3653339A	1972-04-04	HESTER THOMAS M SR
A table for many uses, such as reading, writing, etc. This table includes a tubular frame having the free end slideable within an inverted U-shaped tubular member which includes spring means for adjusting the height of the front edge. The top portion of the table includes a rail which is removeable, the rail having recessed portions to form arm rests and a book rest.
130	Constructional systems	US3613900D	1969-06-24	US3613900A	1971-10-19	CHIU JOSEPH CHAK-FAI
A readily assembled and demounted shelving system having a hollow post with channelled faces, and projection-receiving slots interrupting the channels, there being an arrowheaded connecting member which is insertable into the slots and thereafter slidable along the channels and which is supported by fastener elements in a final desired position.
131	Adjustable leg	US46179865	1965-06-07	US3312440A	1967-04-04	WALTER ZELONY

132	Overbed table	US51406665	1965-12-15	US3310008A	1967-03-21	PETER ALEKSA; FRED PRUIM

133	Telescopic construction	US27814263	1963-05-06	US3191902A	1965-06-29	PAUL GOLLER

134	Support for table for projectors or the like	US15138561	1961-11-09	US3115849A	1963-12-31	BASCOMB JOHNSON PAUL

135	Adjustable or telescopic legs	US8833761	1961-02-10	US3072425A	1963-01-08	WILLIAM NICHOLLS JOHN
903,561. Clamp fastenings. MARTIN THOMAS Ltd., and NICHOLLS, J. W. Aug. 26, 1960 [March 15, 1960], No. 9094/60. Class 44. An adjustable leg comprises a leg member 3 formed on its exterior surface with ratchet means disposed along its length, a tubular member 1 surrounding the leg member, a sleeve 4, located around the leg member and within the tubular member, a split collet 5 on the sleeve member radially deformable so as to be engageable with the ratchet means, a clamping means 2 on the tubular member, the collet having an exterior surface engageable by an interior surface of the clamping means arranged so that the downward load on the clamping means urges the collet to grip the ratchet means, a first detent means 11 for holding the sleeve in an upper position in relation to the tubular member, in which position the collet is locked on the ratchet means, the first detent means being releasable to permit release of the collet from the clamping means, and a second detent means 8 for holding the sleeve member against withdrawal from the tubular member but releasable to permit such withdrawal. As shown, the clamping means 2 is welded to the lower end of the member 1 and is of internal frusto-conical shape. The leg member 3 has a screw-thread which forms the ratchet means and the collet is formed with an internal screw-thread for engaging the threads of the member 3. The outer surface of the collet is of frusto-conical shape to be engaged by the internal surface of the clamping-ring 2 to clamp the collet to the member 3. Welded to the sleeve 4 is a further sleeve 6 which is of sufficient diameter just to slide inside the member 1 and this sleeve is provided with an axially-extending open-ended slot 10. The sleeve 4 is formed with the detent means 11 which is pressed out to extend through the slot 10 in the sleeve 6. The member 1 is formed with an axially-extending slot 7, the lower end of which is provided with the detent means 8 which is bent outwardly. A collar 9 surrounds the member 1 between the detent means 8 and 11 and it has an inwardly-projecting stop-block 12 which projects through the slot 7 and the slot 10 so that it can be engaged by the end of the detent means 11. The detent means 8 normally engages a lip 15 formed on the collar 9. To adjust the position of the leg member 3 the detent means 8 is pressed in so that it is clear of the lip 15 and the member 3 and sleeve 4 can then be pulled downwardly until the detent means 8 is engaged by the lower surface of the block 12; this movement is sufficient to disengage the collet 5 from the clamping-ring 2 and the member 3 can then be moved relative to the collet. After adjustment the load on the leg causes the clamping-ring 2 to engage the collet 5 and press it into contact with the inner member 3. If it is desired to remove the member 3 and sleeve 4, from the member 1 the second detent means 8 is pressed in so that it clears the block 12. Attached to the clamping ring 2 is a socket 17 for attachment thereto of a crossbar 18 forming part of a staging. The cross-bar 18 carries a pin 19 for engaging holes in the inner and outer members to locate these members when the sleeve 4 is removed and the leg is to be non-adjustable. The pin 19 is slidably mounted in a housing 20 attached to the cross-bar 18 and is engaged and disengaged by means of a knob 21. In a modification instead of the member 3 and collet being threaded they are formed with rings or other ratchet means.
136	Vertically adjustable furniture	US52688055	1955-08-08	US2811401A	1957-10-29	WALTER CHANEY JOHN

137	Adjustable height tables with telescoping supports	US48091155	1955-01-10	US2794695A	1957-06-04	GARNETT HEAL ROBERT

138	Vertically adjustable table top	US22086551	1951-04-13	US2643922A	1953-06-30	RUDMAN EDWARD G

139	Connected sectional table	US13055349	1949-12-01	US2605150A	1952-07-29	PHILIP COHEN

140	Clamp	US70363433	1933-12-22	US2039973A	1936-05-05	MORGAN ERVING B

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