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US3378978A - Shaft of telescoped sections - Google Patents

Shaft of telescoped sections Download PDF

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Publication number
US3378978A
US3378978A US504440A US50444065A US3378978A US 3378978 A US3378978 A US 3378978A US 504440 A US504440 A US 504440A US 50444065 A US50444065 A US 50444065A US 3378978 A US3378978 A US 3378978A
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United States
Prior art keywords
tower
section
cross
parts
shaped members
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.)
Expired - Lifetime
Application number
US504440A
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English (en)
Inventor
Durand Pierre
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.)
Richier SA
Original Assignee
Richier SA
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Filing date
Publication date
Application filed by Richier SA filed Critical Richier SA
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Publication of US3378978A publication Critical patent/US3378978A/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/18—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
    • E04H12/182—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic telescopic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/26—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/28—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels
    • B66C23/30—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels with frameworks composed of telescopic elements

Definitions

  • a telescoping tower has polygonal upper and lower sections that telescope within each other. The apices of the upper section are located adjacent midpoin-ts of the sides of the lower section. The lower end of the upper section has a plurality of triangular prisms one secured to each of its sides, these prisms adapting the lower end of the upper section to slide in and to be selectively secured to the lower section of the tower.
  • My invention has for its object towers of a polygonal cross-section, the parts forming such towers having different areas and more particularly, my invention relates to crane towers constituted by a main lower part and an upper jib-carrying part fitted telescopically inside the lower part.
  • the sides of the upper part carrying the jib are parallel with the sides of the lower part and the difference in cross-sectional area between the two parts cannot be large, unless an intricate structure is provided for transmitting from one part to the other the torsional and flexional stresses applied to the framework of the crane-s.
  • the upper section of the tower is of substantially less cross section than the lower section and is adapted to slide in and be selectively secured to the lower section by means of a plurality of prisms one secured to each side of the lower end of the upper section, so that the apices of the upper section are disposed adjacent the midpoints of the sides of the lower section.
  • FIGS. 1 to 4 of the accompanying drawings show furthermore in elevational and horizontal cross-sectional view respectively two conventional embodiments of the connection between the upper and lower parts of a crane tower.
  • the difference in transverse size is large and the connection between the two sections of the tower can be obtained only with difiiculty.
  • The' present invention solves the problem by providing between the parts of the tower a difference in transverse size such that they may be inscribed inside each other in a relative position in which the edges of the upper part engage the lateral surfaces of the lower part.
  • FIGS. 1 to 4 illustrate prior art as disclosed hereinabove.
  • FIGS. 5 and 6 are views respectively in elevation and in horizontal cross-section of a tower improved in accordance with my invention.
  • FIGS. 7 and 8 show in perspective view two embodiments of the connection between the two parts of the tower.
  • FIG. 9 is an elevational view of a crane tower of which the upper part designed in accordance with my invention is telescopically collapsible.
  • FIG. 10 is, on a larger scale, a detail view of the lower end of said tower.
  • FIG. 11 is a horizontal cross-sectional view of an embodiment of the lower end of the upper part of the tower.
  • FIG. 12 is a horizontal sectional view of a tower having a triangular cross-section, which tower is designed in accordance with the invention.
  • the upper part of the tower includes, as illustrated in said FIG. 7, four shaped members 8a, 8b, 8c, 8d which are interconnected by stays andcross-braces not illustrated and which extend underneath said plane P of FIG. 7.
  • the lower part of the tower is constituted by four shaped members 9a, 9b, 9c, 9d and the two parts of the towers 8 and 9 are angularly shifted with reference to each other in a manner such that the upper shaped members 8a, 8b, 8c, 8d each engage lines extending at mid-height along the corresponding side of the lower part of the tower the upper part 8 having of course a cross-section which is much smaller than that of the lower part 9.
  • connection between the two parts 8 and 9 of the tower thus positioned is obtained by means of a triangular system constituted by two straps 10 and 11 and four pairs of stays arranged in the shape of inverted Vs as shown at 12.
  • connection may be simplified by omitting the strap 11.
  • Said arrangement of a tower allows, as mentioned hereinabove, executing an upper part of a crane tower adapted to be raised by means of a telescopic connection as in the case of the crane illustrated in FIGS. 9 and 10.
  • the section having the larger cross-section 16 is located under the upper section and serves both as a sliding member and as a connecting member with the lower part 13 of the tower.
  • the section having the smaller diameter 17 carries the gear wheel 15 controlling the pivotal movement and the diameter of which is independent of the total height of the crane and depends only on the torque produced by the load at a maximum reach.
  • FIG. 10 illustrates furthermore diagrammatically said portion of the tower.
  • the shaped members corresponding to the smaller section 17 of the upper part 14 are fitted to the lower section through the agency of a frame 18 the sides of which are parallel with the geometrical diagonal lines of said section 16, whereby the stresses at the points connecting said frame with said stays are transmitted through the stays to the shaped members or ribs forming the section 16 and thence to the shaped members or ribs forming the lower part 13 as provided by assembling the cooperating shaped members together.
  • My invention allows, inter alia, executing an upper part of a tower adapted to serve in cooperation optionally with either of two lower parts of different cross-sectional areas.
  • the upper part of a tower may, in fact, include a lower extension fixed to the lower part of a tower, which lower .4 part is slightly larger, so as to allow the sliding of the upper part. It is, in fact, possible to associate with such an extension four triangular prisms 20, or else dihedrals (FIG. 11) said extension being adapted to slide in and to be secured to the lower part of a tower.
  • a tower comprising a lower section of polygonal cross section and relatively large cross-sectional area and an upper section of polygonal cross section and relatively small cross-sectional area, the apices of the upper section being located adjacent the midpoints of the sides of the lower section, and a plurality of triangular prisms secured one to each side of the lower end of said upper section to adapt said upper section for vertical sliding movement in and selective securement to said lower section.
  • a tower as claimed in claim 1 said triangular prisms each having a fiat side secured to a side of said upper section, the other two sides of each prism being coplanar with the sides of the adjacent two triangular prisms.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Bridges Or Land Bridges (AREA)
US504440A 1965-05-21 1965-10-24 Shaft of telescoped sections Expired - Lifetime US3378978A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR46028A FR1444294A (fr) 1965-05-21 1965-05-21 Perfectionnement aux tours constituées d'éléments à section polygonale de sections dimensionnelles différentes

Publications (1)

Publication Number Publication Date
US3378978A true US3378978A (en) 1968-04-23

Family

ID=1579356

Family Applications (1)

Application Number Title Priority Date Filing Date
US504440A Expired - Lifetime US3378978A (en) 1965-05-21 1965-10-24 Shaft of telescoped sections

Country Status (4)

Country Link
US (1) US3378978A (de)
DE (1) DE1945694U (de)
FR (1) FR1444294A (de)
GB (1) GB1135465A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464174A (en) * 1966-11-18 1969-09-02 Rosengrens Plat Ab Chimneys
US3890757A (en) * 1974-02-28 1975-06-24 Case Co J I Boom members having stiffener elements for crane boom constructions
US3998025A (en) * 1973-01-02 1976-12-21 Nestroy Joseph F Combination light fixture and post structure
US5117607A (en) * 1990-06-04 1992-06-02 Tri-Steel Industries Inc. Sectional hollow metal pole structure
WO1998030768A1 (en) * 1997-01-13 1998-07-16 Daryl Turner A truss structure for a utility pole
US6155017A (en) * 1996-11-04 2000-12-05 Powertrusion 2000 Truss structure
US6453635B1 (en) 1998-07-15 2002-09-24 Powertrusion International, Inc. Composite utility poles and methods of manufacture
US20030196391A1 (en) * 2002-04-19 2003-10-23 Hayes David C. Fiber architecture for a composite pole
US20030215319A1 (en) * 2002-04-12 2003-11-20 Nurse Andrew David Boom for a load handling machine
USD598141S1 (en) * 2004-07-20 2009-08-11 Dhs Systems Llc Telescoping camouflage pole

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2509717A (en) * 1941-05-15 1950-05-30 Ausenda Carlo Telescoping dipole
US2998106A (en) * 1955-06-30 1961-08-29 Atag Trust Mobile elevating and erecting device for masts assembled from separate sections

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2509717A (en) * 1941-05-15 1950-05-30 Ausenda Carlo Telescoping dipole
US2998106A (en) * 1955-06-30 1961-08-29 Atag Trust Mobile elevating and erecting device for masts assembled from separate sections

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3464174A (en) * 1966-11-18 1969-09-02 Rosengrens Plat Ab Chimneys
US3998025A (en) * 1973-01-02 1976-12-21 Nestroy Joseph F Combination light fixture and post structure
US3890757A (en) * 1974-02-28 1975-06-24 Case Co J I Boom members having stiffener elements for crane boom constructions
US5117607A (en) * 1990-06-04 1992-06-02 Tri-Steel Industries Inc. Sectional hollow metal pole structure
US5870877A (en) * 1994-12-07 1999-02-16 Turner; Daryl Truss structure for a utility pole
US6155017A (en) * 1996-11-04 2000-12-05 Powertrusion 2000 Truss structure
WO1998030768A1 (en) * 1997-01-13 1998-07-16 Daryl Turner A truss structure for a utility pole
US6453635B1 (en) 1998-07-15 2002-09-24 Powertrusion International, Inc. Composite utility poles and methods of manufacture
US20030215319A1 (en) * 2002-04-12 2003-11-20 Nurse Andrew David Boom for a load handling machine
US7111745B2 (en) * 2002-04-12 2006-09-26 J. C. Bamford Excavators Limited Boom for a load handling machine
US20030196391A1 (en) * 2002-04-19 2003-10-23 Hayes David C. Fiber architecture for a composite pole
WO2003089732A1 (en) * 2002-04-19 2003-10-30 Powertrusion International, Inc. Fiber architecture for a composite pole
US7228672B2 (en) 2002-04-19 2007-06-12 Powertrusion International, Inc. Fiber architecture for a composite pole
CN1327093C (zh) * 2002-04-19 2007-07-18 鲍尔特鲁西翁国际有限公司 用于复合电线杆的纤维结构
USD598141S1 (en) * 2004-07-20 2009-08-11 Dhs Systems Llc Telescoping camouflage pole

Also Published As

Publication number Publication date
DE1945694U (de) 1966-09-08
GB1135465A (en) 1968-12-04
FR1444294A (fr) 1966-07-01

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