US2988318A

US2988318A - Shore attachment combination

Info

Publication number: US2988318A
Application number: US846020A
Authority: US
Inventors: Hugh J Ferguson; Donald B Moritz
Original assignee: WACO PORTER CORP
Current assignee: WACO PORTER CORP
Priority date: 1959-10-12
Filing date: 1959-10-12
Publication date: 1961-06-13
Anticipated expiration: 1978-06-13

Description

June 1961 H. J. FERGUSON ETAL 2,938,318

SHORE ATTACHMENT COMBINATION Filed Oct. 12, 1959 FIG. I

+- 41 INVENTORS HUGH J. FERGUSON 8| DONALD B. MORITZ ATTORNEYS Unite The present invention is concerned generally with removable means for attaching an elongated member in adjustably telescoped relation in and on a tubular member; and more particularly with an attachment for supporting an extension member in a tubular element of a shore, shore panel or like load supporting member in a combination of adjustable length. For convenience of discussion the invention will be described however in terms of shore panel assemblies.

The extended areas and high load locations frequently to be shored in modern construction has led to the development of shoring systems utilizing a number of standard steel components intended to be assembled into particular shoring structures adapted to the particular needs of individual construction situations which could never be met by the old adjustable single strut-like or column like shore units. Such systems are almost universally based upon shore panels-generally rectangular, flat or planar welded tubular steel frames, having open-ended side legs-which may be linked in horizontally spaced parallel relation by bolted connecting braces, and also tiered by use of connectors joining the legs of vertically aligned panels. j

Since a complex shoring assembly may extend over a fundamental supporting area, either the ground or a lower building structure, varying in elevation from the location of one leg to another among the several panels; and in like fashion, where the legs of top panels, as well as load bearing ledgers thereof, may be used for load bearing supports or heads at different levels, various devices have been used to obtain quick yet precise top and bottom adjustments in the individual eifeetive leg lengths.

states Patent ,0 "Fee Among such devices have appeared not only simple adjusting screws on the ends of legs in panels intended for use at the top or bottom of a shoring assembly, but also panels having adjusting screw devices accepting shore stafis, members extendable therethrough in telescoped relation to a panel leg and coarsely adjustable lengthwise by a selectable pin connection through an ex'te'ndable member and through a movable screw portion of the device, or through an element supported by the latter. However, panels of this character represent an increase in the number of basic components in a shoring system.

An object of the present invention is to provide an improved device for attaching such an extendable member to a panel leg. Another object is to provide a. device itself removably attachable to the leg of a shoring panel leg which accepts an extendable member or shore staif assembly and maintains the same in a selected screwadjusted telescoped relation or position relative to the leg. A still further object is to provide a device of the character described which permits a reduction in the number of components, particularly of types of panels required in a flexible shoring system.

Other objects and advantages of the invention will appear from the following description and the drawings wherein:

FIG. 1 is a detailed view of an attachment device per se; and

FIG. 2 is an elevational view of a shoring panel with a shoring staif assembly mounted thereto through the device of this invention.

The attachment device A of FIG. 1 is intended primarily for use with a shore stafi S, which is shown in FIG. 2 by way of an example of the environment, attached to or applied to the top end of the tubular member or leg 10 of a shoring panel, a welded tubular steel unit or module comprised of the hollow parallel legs 10 joined by the top and bottom lodgers 11, 12 and intervening rung 13. Each staif assembly is removably attached to the tubular member provided by the panel leg in a telescoping vertically adjustable relation, giving an adjustable length here eifected at the top of the leg.

The device A includes roughly cylindrical hollow bottom and top body portions or

members

15 and 16 adjustably secured in coaxial alignment, by engagement of the male threaded reduced upper end -17 of the leg cap or bottom member 15 in the female threaded reduced lower end 18 of the top member.

The main part or body of the cap member, having an internal diameter adapted to receive the tubular member, here a panel leg 10 over and on which it may be applied or fitted by hand, is slotted at 19 on one side upwardly from the bottom end to receive or embrace as a radial projection of the tubular member the top ledger 11 when used as here on a shoring panel.

Preferably as a clamping rneans acting diametrically from the slot, there is provided a handle type clamping bolt 20 -threaded radially through the cap body to bear in clamping relation on the tubular leg 10, as though a threaded radially apertured boss or a simple nut 21 Welded 'to the body coincident with an aperture therethrough.

A handle 22, pinned at one end between the depending sides of a U-shaped piece 23 welded endwise to the side of the top member, may be swung or pivotedupwardly from normal downward dependant position to a generally radial position for use, in finervertical screw adjustments, by rotation of top member 16 relativeto cap 15, the latter being immobilized here by its slot engagement with the top ledger as well as by the clamping bolt. 7 l

The internal diameter of the necked or reduced male threaded end 17 of the cap, to conducevto stafi stability will preferably correspond to the outside diameter of the staif tube 25, receiving the latter however in a readily manually set sliding fit, and so also-will the. internal diameter of the tub'ular memberto which the device A is to be applied, here legs 10. The assembly of the stafl S here is shown as a known form, including an elongated rod or a tube 25 provided with a head 26 adapted to engage particular supported work members or surfaces; and alslidable collar 27 as a stop means with bottom adapted 'tollenga''ge and be supported by the upper endo f the attachment as a stop surface; the staff tube 25 in turn being supported at selected position on the top of the collar and hence on the attachment and ultimately the panel leg, by a pin 28 extending diametrically through the stafi tube. For this purpose in this known form of staflf means, the tube has along its length a series of spaced diametric apertures, providing coarse increments of adjustment; and the top edge of collar 27 has a plurality of diametric pairs of pin-supporting downward slots or axially spaced steps of increasing depth equally to divide further the adjustment increments ofiered by the staff tube aperture spacing. Continuous fine adjustment over the span of the smallest increment atforded by the pin connection is then provided by the attachment screw.

Although the device and combination hereinbefore described is presented as applied to the upper end of a tubular member, on a panel leg, obviously the same may be applied to the bottom of a similar tubular member for required adjustment, say of panel legs to diverse under-supporting levels. Consequently only one type of panel is required, in conjunction with devices according to this invention, whether such vertical adjustment is to be made at the top of one or a tiered plurality of the panels for load support at areas of differing levels, (e.g.,

with levels at both legs of a panel differing from each other as vwell as from the level of a load supporting ledger); or at the bottom of panels, to accommodate panels o, iv rs gr nd or un e uppo ting l ve while m n r l y 1 i We, c m:

' pl. For attachment of a longitudinally extended member adjustably telescoped relation to an elongated tubular member having a lateral projection near one end thereof, a device comprising: first and second body portions of generally cylindrical form adapted to accept the extended member therethrough, said portions each having one end threadably engaged in axial alignment, the

first body portion having its other end formed with an inward slot andadapted to receive socket-Wise the said end of the tubular member with said projection engaged in said slot, and means on the first body portion adapted to secure the device on. the end of said tubular member, the other end of said second body portion being adapted to provide a reaction surface engageable by stop means on the said extended member for supporting the latter at selected position against inward telescoping motion relative to the tubular member.

, 2. For attachment of a longitudinally extended member in adjustably telescoped relation to an elongated tubular member. having a lateral projection near one end thereof,- a device comprising: first and second body portions of generally cylindrical form each with one end reduced and threadably engaged in axial alignment, the first body portion having its other end formed with an inward slot and adapted to receive the said end of the tubular member with said projection engaged in said slot, and clamping. means on the first body portion adapted to secure the device on the said end of said tubular member, the other end of said second body portion being adapted to provide a reaction surface engageable by stop means on the said extended member for supporting the latter against inward telescoping motion relative to the tubular member.

3. For attachment of a'longitudinally extended shore staff in adjustably telescoped relation to a tabular leg of a'shore panel having near one end a; ledger extending radially thereof, a removable device comprising: first and second body portions of generally cylindrical form each with one end threadably engaged in axial alignment, the first body portion having its other end formed with an inward slot and adapted to receive socket-wise the said end of the tubular leg with said ledger engaged in said slot, and clamping means on thefirst body portion adapted to. secure the device on the end of said tubular leg, the other end of said second body portion being adapted to provide a reaction surface engageable by stop means on the said shore start for supporting the latter against Inward telescoping motion relative to the said leg.

4. For attachment of a longitudinally extended shore staif in adjustably telescoped relation to a tubular leg of a shore panel having near one end a ledger extending radially thereof, a removable device comprising: first and second body portions of generally cylindrical form each one end threadably engaged in axial alignment, the first body portion having its other end formed; with an inward'slot and adapted tolreceive socket-wise the said end of the tubular leg with said ledger engaged in said slot, and radial clamping bolt means threaded through the first body portion into engagement with said leg diametrically from said slot ,for securing the device on the end of the leg, the other end of said second body portion being adapted to provide a reaction surface engageable by step means on the said shore staff for supporting the latter against inward telescoping motion relative to the said leg.

5. The combination of a longitudinally extended shore staif and a removable device for attaching said staif in adjustably telescoped relation to a tubular leg of a shore panel, said panel including a ledger extending radially of said leg near one end of said leg, said device including: first and second body portionsof generally cylindrical form each with one end threadably engaged in axial alignment, the first body portion having its other end formed with an inward slot and adapted to receive socket-wise the said end of the tubular leg with said ledger engaged in said slot, and radial clamping bolt means threaded through the first body portion into engagement with said leg diametrically from said slot for securing the device on the end of the leg, the other end of said second body portion being adapted to provide a reaction surface engageable by stop means on the said shore staff for supporting the latter against inward telescoping motion relative to the said leg; and stop means on the stafi engaging said reaction surface, said stop means being selectively longitudinally positionable on said staff for determining a'telescoped relation of the stafi? to said device and thereby to said tubular leg.

References Cited in the file of this patent UI-l1TED STATES PATENTS 2,584,015 Hawes Jan. 29, 1952 2,777,660 Albrecht Jan. 15, 1957 FOREIGN PATENTS 714,075 Great Britain Aug. 25, 1954 715,358 Great Britain Sept. 15, 1954