US2391101A

US2391101A - Telescopic structure

Info

Publication number: US2391101A
Application number: US539981A
Authority: US
Inventors: Frank W Odin
Original assignee: Individual
Current assignee: Individual
Priority date: 1944-06-12
Filing date: 1944-06-12
Publication date: 1945-12-18
Anticipated expiration: 1962-12-18

Description

Dec-18,1945 '1 F. w. ODIN 2,391,101

TELESCOPIC STRUCTURE Filed June 12, 1944 i fill/672E: I I I Patented Dec. 18, 1945 LIFVUNITED STAT-E s PATE TELEsooPIo STRUCTURE Frank W. Odin, Chicaga'l ll. Application June 12,1944, Serial No. 539,981 7 Claims. (01. 287558) This invention relates, in general, to telescopic structures' but more particularly to improved means for. locking together two telescoping member's, at any desired point in their relative adjustment, quickly and efiectively.

'A' further .object is to provide an improved clamping or locking means, in which the number of. parts will be reduced to a minimum, and

which will be effective and efficient in operation.

A still further object is toprovide improved locking means of this character, which will be concealed .within' the telescoping members; and also improved meanswhich will serve to indicate and assist in determining the relative positions of thetelescoping members.

To'the attainment of these ends and the accomplis'hment of other new and useful objects as Willappear, the invention consists in the features of ,novelty, in substantially the construction,

combination and arrangement of the several parts, f. hereinafte more .fully described and claimedandshown in the accompanying drawing illustrating this invention, in which Fig. 1 is a perspective view of a display stand constructed in accordance with the principles of this invention.

Fig, 2. is'an enlarged detail view of portions of" the telescoping members and ofthe clamping or locking means.

, Fig. 3 is a detailperspective'view of a' portion.

of one of the members.

Fig. 4 is a view, partly in elevationand partly I broken away, and. on an enlarged scale, of the clamping or locking means. I J M Fig. 5 is a detail sectional view taken on line 55,, Fig.4,"showing the partsin a clamping or.

locking position.

' Fig. 6 is a view similar" to Fig. 5, showing the parts in an unc'lamping position.

Fig. .Yisa detailsectional view taken on line 1-4, Fig. 4.

Fig. an a view, partly in elevation, partlyi of a display support or stand, it is to be understood that the invention is not to be limited to such use, as it is well adapted for securing together, in adjusted relation, any telescopic structure to which the invention may be applied.

In Fig. 1, there is shown a display support comprising a base I 5 and an upright standard I6,

which latter is of tubular construction and is provided with a slot H extending through one end thereof, so as .to impart resiliency to the standard. A shoulder or projection [8 may be formed at the lower end of the slot H, for a purpose to be described. The numeral I9 designates a second member, which telescopes into the slotted end of the standard 16 and is of a diameter slightly less than the internal diameter of thestandard I 6, so as to permit of a longitudinal as well as relative rotary adjustment of onemember with respect to the other.

A sleeve 20 encompasses the'slotted end of the standard [6, and is provided withan internal projection 2|, whichlatter may be formed in any suitable manner, such asbystriking up a portion of the sleeve. When the sleeve is in position upon the standard IS, the projection 2| will stand within the slot l1, so that the sleeve may be moved longitudinally upon the standard. The sleeve .20 is provided with a cut-away por tion 22 at its base, so that when the leeve is in position'upon the standard, the projection l8 on, the standard will be disposed between spaced. shoulders 23, to limit the rotary movement of the,

sleeveupon the standard. In use, the sleeve 29 isfirstplaced upon the standard I6. with the, projection 2| positioned in the slot l1 and with.

the projection l8 between the shoulders 23, the

projection also serving as a means for supporting the sleeve. l

The member I9 is then inserted into the standard l6 through the sleeve, and is adjusted to the desired height with respect to the standard It,

after which the sleeve 20 is rotated with respect to the standard Hi, from the position shown in Fig. 6 to the position shown in Fig. 5. This r0- tation of the sleeve will cause the projection 2| to engage and depress one edge of the slot l1, so

as to contact the slotted end of the standard 16,.

and thereby cause the same to contract and clamp the standard in its adjusted position. The

sleevemay be rotated until one of the shoulders" 23 engages the projection I 8. To release the member l9 with respect to the standard It, to permit of further adjustment, the sleeve may be rotated back to the position shown in Fig. 6, and the inherent resiliency of the slotted end of the standard It will cause it to expand, and

thereby. permit adjustment of the member 1-9.

In the form of the invention shown in Figs.

NT' OF-FICEVT 8, 9 and 10, the standard 24 is provided with a slotted end 25, and the walls of the slot are cut away, as at 25, to form resilient projections or fingers 21 which will, by reason of the cut-away portions 26, be spaced from the resilient portions 28. In this form of the invention, the sleeve 29 is provided with two projections 30 extending inwardly from the inner face thereof, and the member 3|, corresponding to the member 19, is provided with peripheral recesses 32 spaced lengthwise of the member 3|, to form surfaces 33 intermediate the recesses 32.

With this form of the invention, the spring fingers 21 serve the function of indicating the extent of relative adjustment of the telescoping members. When the member 3| is telescoped into the standard 24 and is moved longitudinally thereof, the fingers 21 will enter the recess 32 which is adjacent thereto, and during the relative longitudinal movement of the members, they will successively enter the recesses 32 as the latter are moved adjacent the fingers. This will serve either as a visual or an audible indication of the extent of such relative adjustment.

After the desired adjustment has been obtained, the sleeve 29 may be rotated with respect to the standard, and one Of the projections 30 will force the portions 28 of the standard against one of the surfaces 33, while the other projection 30 will force one of the fingers 21 into and against the bottom of one of the recesses 32, and thereby frictionally clamp the parts in position. To unclamp the member 3!, the sleeve is rotated to a position so that the projections 30 will stand within the slot 25, and in such position the sleeve may be moved longitudinally of the standard.

While the preferred forms of the invention have been herein shown and described, it is to be understood that various changes may be made in the details of construction and in the combination and arrangement of the several parts, within the scope of the claims, without departing from the spirit of this invention.

What is claimed as new is:

1. In combination, two telescoping members, the outermost member having an elongated slot extending through one end thereof to impart resiliency to said end, a sleeve encompassing and mounted thereupon for rotation and for lengthwise movement with respect to said slotted end, and a projection on the inner face of the sleeve, adapted to be positioned to extend into said slot, whereby upon rotation of said sleeve said projection will move out of the slot to contract said slotted end to clamp the inner member, said projection being also movable along said slot when positioned therein and when said sleeve is moved lengthwise of said slotted end.

2. In combination, two telescoping members, the outermost member having an elongated slot extending through one end thereof to impart resiliency to said end, a sleeve encompassing and rotatable upon said slotted end, and a projection on the inner face of the sleeve adapted to be positioned to extend into said slot, and to be rotatably moved out of the slot to contract said slotted end to clamp the. inner member, said projection being movable along said slot when positioned therein and when said sleeve is moved lengthwise of said slotted end, said sleeve and said slotted end being provided, one with spaced stops and the other with a projection movable bletween said stops to limit the rotation of said eeve.

3. In combination, two telescoping members,

the outermost member having an elongated slot extending through one end thereof to impart resiliency to said end, a sleeve encompassing and rotatable upon said slotted end, a projection on the inner face of the sleeve adapted to be positioned to extend into said slot, whereby upon rotation of said sleeve said projection will contract said slotted end to clamp the inner mem: her, said projection being movable along said slot when said sleeve is moved lengthwise of its supporting member, and automatically operable interengaging means on said members for indicating the extent of relative adjustment of said members, a portion of said indicating means being movable in directions lengthwise of one of said telescoping members.

4. In combination, two telescoping members, the outermost member having an elongated slot extending through one end thereof to impart resiliency to said end, a sleeve encompassing and rotatable upon said slotted end, a projection on the inner face of the sleeve adapted to bepositioned to extend into said slot, and when, upon rotation of said sleeve said projection will contract said slotted end to clamp the inner member, said projection, when positioned in said slot, being movable along said slot when said sleeve is moved lengthwise of its supporting member, additional interengaging means on said members for indicating the extent of relative adjustment of said members, the said means embodying a resilient finger on one of said members, and a series of spaced annular recesses arranged lengthwise of the other member, for successively receiving said finger, as one of the members is moved lengthwise of the other.

5. In combination, two telescoping members, the outermost member having an elongated slot extending through one end thereof to impart resiliency to said end, a sleeve encompassing and rotatable upon said slotted end, a projection on the inner face of the sleeve extending into said slot, whereby upon rotation of said sleeve said projection will contract said slotted end to clamp the inner member, said projection moving along said slot when said sleeve is moved lengthwise of its supporting member, interengaging means on said members for indicating the extent of relative adjustment of said members, the said means embodying a resilient finger on one of the members engageable in recesses on the other member, and a projection on said sleeve for forcing said finger into one of said recesses.

6. In combination, two telescoping members, one of said members having an elongated slot extending through the end thereof, the edge of said slot being cut transversely of the length of the member to form resilient portions spaced lengthwise of the member, the other of said members having recesses spaced lengthwise thereof, a sleeve encompassing the slotted member, and projections on the inner face of said sleeve, said projections extending into and movable in the slot when said sleeve is moved lengthwise of said slotted member, said projections operating respectively, when said sleeve is rotated upon said slotted member, to force one of said resilient portions against a portion of one of the telescoping memlbers between said recesses, and another resilient portion into one of said recesses.

7. In combination, two telescoping members, one of said members having an elongated slot extending through the end thereof, the edge of said slot being cut transversely of the length of the member to form resilient portions spaced lengthwise or the member, the other of said members having recesse spaced lengthwise thereof, a sleeve encompassing the slotted member, and projections on the inner face of said sleeve, said projections extending into and movable in the slot when said sleeve is moved lengthwise of said slotted member, said projections operating respectively when said sleeve is rotated upon said