US3340961A - Pole climber - Google Patents

Pole climber Download PDF

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Publication number
US3340961A
US3340961A US545020A US54502066A US3340961A US 3340961 A US3340961 A US 3340961A US 545020 A US545020 A US 545020A US 54502066 A US54502066 A US 54502066A US 3340961 A US3340961 A US 3340961A
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US
United States
Prior art keywords
pole
climber
axis
roller
rotation
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
US545020A
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English (en)
Inventor
Provaznik Bohumil
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.)
CESKOSLOVENSKE ENERGETICKE ZAVODY
Original Assignee
CESKOSLOVENSKE ENERGETICKE ZAVODY
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Publication of US3340961A publication Critical patent/US3340961A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B27/00—Apparatus for climbing poles, trees, or the like
    • A63B27/02—Climbing devices for round poles or trees attachable to the feet

Definitions

  • a pole climber having an approximately U-shaped carrier dimensioned to receive the pole in its bight, a foot support on one leg of the carrier, and two clamping members at the opposite ends of the two legs, the clamping member near the foot support being a roller freely rotatable about an eccentirc axis and having a face of circular cross section and concavely arcuate in axial section.
  • This invention relates to a pole climber or climbing iron of the type used by electricians for climbing telephone or power transmission poles, one climber being attached to each foot of the worker.
  • a pole climber normally consists of a sickle-shaped supporting member which defines a laterally open recess and which may be laid about the pole to be climbed.
  • a plate or other support for the foot of the wearer is attached to one end of the supporting member, and means are provided for tightening the grip of the climber on the pole in response to the bearers Weight when the same is applied to the foot support.
  • the primary object of the invention is the provision of a climber of the type described which effectively and safely grips the pole, yet is simple and rugged in its construction so as to have a long useful life without requiring repair and maintenance work.
  • Another object of the invention is to provide a climber which does not seriously interfere with normal walking on the ground so that the wearer may walk from one pole to the next without removing his climbers.
  • a further object is the provision of climbers the use of which does not require an extensive training period, and which are readily controlled by the wearer after a brief instruction in their use.
  • the invention in one of its aspects, resides mainly in a climber comprising a supporting member which defines a laterally open recess adapted to receive the pole to be climbed and having two terminal portions which face each other in a direction across the recess. One of the terminal portions may be fastened to the foot of the wearer so that the foot is outside the recess.
  • the clamping arrangement for tightening the grip of the climber on the pole under the wearers Weight includes a friction roller having an axis and mounted on the afore-mentioned one terminal portion of the supporting member for rotation about the axis.
  • the roller has an axially extending face of arcuate cross section, but the geometrical axis of this face is spaced from the axis of rotation of the roller.
  • the friction roller projects inward of the recess from the portion of the supporting member to which it is secured. Its axis is transverse of the afore-mentioned direction across the recess, and the arcuate face of the roller is directed toward the other terminal portion of the supporting member.
  • FIG. 1 shows a climber of the invention attached to the foot of a wearer and applied to a pole, in a perspective view;
  • FIG. 2 shows the climber and the pole of FIG. 1 in plan view
  • FIG. 3 shows a detail of FIG. 2 on a larger scale, and partly in section;
  • FIG. 4 is a side-elevational, partly sectional view of the detail of FIG. 3.
  • a trough-shaped foot support 1 whose base plate is normally approximately horizontal and supports the sole of the wearer. It is supported on a thin-walled steel carrier tube 2 which is bent into a semi-circular shape and reenforced by a slender arcuate steel rod 3 one end of which is attached to one end of the tube 2, the remainder of the rod being spaced from the tube 2 in a radially inward direction toward the center of the laterally open recess defined by the tube 2, and attached to the tube by short radial rods 4 welded to the tube 2 and the rod 3.
  • the foot support 1 is attached to a terminal portion of the tube 2 by two plates 5 spaced in the direction of elongation of the tube 2 and perpendicular to the same.
  • the plates extend from the tube 2 inward of the afore-mentioned laterally open recess and outward therefrom, the foot support 1 being attached to the outwardly projecting plate portions.
  • the inwardly projecting portions of the plates 5 have two sets of bores 51 aligned longitudinally of the tube 2 at different distances from the same.
  • a pin 6 is rotatably received in one set of bores 51 and is axially secured therein by cotter pins 61.
  • a friction roller 7 is mounted on the pin 6 for rotation about the axis thereof in a substantially fixed axial position secured by washers 6'. This axis extends longitudinally of the associated terminal portion of the tube 2 in a direction which is approximately parallel to the support plane of the foot support 1.
  • the roller 7 whose detail structure is best seen in FIG.
  • a metal core 8 which is a cylinder with circumferential ribs 11 and provided with radially projecting end flanges 9 releasa-bly attached to the core 8 by non-illustrated screws.
  • a sleeve 12 of tough elastomeric material such as synthetic rubber covers the exposed face of the core 8 and is held in position by conforming engagement with the ribs 11 and by the flanges 9.
  • the outer face of the roller is approximately circular in cross section about a geometrical axis radially offset from the axis of rotation centered in the pin 6 and axially ribbed. The diameter of the outer face decreases axially from the ends toward the middle of the roller.
  • Abutment pins 10 may be inserted into three sets of axial openings 10' in the flanges 9 for limiting rotation of the roller 7 about the axis of the pin 6 by abutting engagement with respective narrow face portions of the plates 5.
  • the spacing between the geometrical axis of the roller 7 and its axis of rotation may be varied by inserting the pin 6 into any one of three bores 71 which extend in the direction of the geometrical axis.
  • the end of the tube 2 remote from the roller 7 carries two axially ribbed rubber sleeves 13 axially separated by a spacer 14, and held on the tube 2 by a plug 15 in the open end of the tube.
  • a leather strap 17 provided with a buckle closure connects lateral flanges of the foot support over the wearers insetp for securing the foot to its support. Another leather strap 17 is secured at the heel end of the foot support to hold the wearers heel.
  • the afore-described climber is used in conjunction with another climber, not shown, in which the spatial relationship of parts is reversed in the manner of a mirror image.
  • the two climbers are attached to the feet of the wearer which are placed in the foot supports 1 and fastened by the straps 17 in the manner shown in FIG. 1.
  • the pin 6 may be shifted to another set of bores 51 if necessary to adjust the spacing of the roller 7 from the friction sleeves 13 to the cross sectional dimension of a pole 18 to be climbed, and the eccentricity of the roller 7 may be simultaneously adjusted by shifting the pin 6 from one of the bores 71 in the roller 7 to another, if necessary to adapt the climber to the surface condition of the pole.
  • Each supporting tube 2 is then placed about the pole 18 in a plane obliquely inclined to the vertical axis of the pole, the end of the tube 2 carrying the foot support 1 being lowermost.
  • the climbers are then moved upward on the pole one by one in a conventional manner.
  • Gravity acts downward on the foot support 1, and this results in forces being exerted by the roller 7 and the friction sleeves 13 in opposite horizontal directions toward the center of the pole 18.
  • the roller 7 is turned in the direction of the curved arrow by its frictional engagement with the pole 18 and the downward movement of the pin 6.
  • the rotation of the roller 7 in the direction of the curved arrow causes increasingly thick portions of the roller 7 to be interposed between the pin 6 and the pole 18.
  • the relative positions of the pin 6, the corresponding end of the supporting tube 2 and of the foot plate 1 being fixed in the operative condition of the climber, the rotation of the roller thus causes the grip of the climber on the pole 18 to be strengthened.
  • the suitably placed abutment pits 10 limit rotation of the roller 7 to the range in which the pin 6 moves away from the pole 18 while it moves downward.
  • the approximate hourglass shape of the roller 7 increases the area of contact between the roller and the pole as compared to a straight cylindrical roller, and the provision of two sleeves 13 separated by a spacer 14 serves the same purpose.
  • the alternating axial grooves and ribs in the sleeves 12, 13 and the resilient material chosen for their construction further contribute to firm frictional engagement between the climber and the pole.
  • the climber of the invention has been found to be used competently by electricians, linemen, and other workers required to climb poles and similar objects after a very brief acquaintance with the climber. Itdoes not .have to be removed from the foot of the wearer while the same walks on the ground over a reasonable distance, such as that usually separating telegraph poles. It has been found effective on poles of circular, oval, or polygonal cross section, and made of a variety of materials, such as wood, metal tubing, or concrete, without damaging the pole surface.
  • the eccentricity of the roller 7 should be adjusted to the surface roughness of the pole to he climbed, and the optimum adjustment of the climber depends somewhat on the wearers particular habits and his weight. The necessary experience is quickly gained, but the climber is fully operative even when not adjusted to its optimum dimensions.
  • the climber of the invention has few and simple moving parts. Wear is limited mainly to the sleeves 12, 13,
  • a pole climber comprising, in combination:
  • a friction roller having an axis of rotation and an axially extending face of arcuate cross section about a geometrical axis, said geometrical axis of said face being radially spaced from said axis of rotation;
  • mounting means securing said friction roller to said one end portion, said mounting means including means for preventing axial movement of said friction roller while permitting rotation thereof about said axis of rotation,

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Tools (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
US545020A 1965-04-26 1966-04-25 Pole climber Expired - Lifetime US3340961A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS272365 1965-04-26

Publications (1)

Publication Number Publication Date
US3340961A true US3340961A (en) 1967-09-12

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ID=5365124

Family Applications (1)

Application Number Title Priority Date Filing Date
US545020A Expired - Lifetime US3340961A (en) 1965-04-26 1966-04-25 Pole climber

Country Status (4)

Country Link
US (1) US3340961A (de)
AT (1) AT256961B (de)
CH (1) CH441080A (de)
GB (1) GB1126007A (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4161233A (en) * 1977-12-09 1979-07-17 Wirtz James A Portable tree seat
US4597471A (en) * 1985-03-22 1986-07-01 Anderson Carl E Heavy duty pump jack
US5249644A (en) * 1992-01-08 1993-10-05 Amacker Joseph A Hook-type tree climbing stand
US5285868A (en) * 1992-01-08 1994-02-15 Amacker Joseph A Hook-type tree climbing stand
US5407025A (en) * 1993-07-15 1995-04-18 Nickel; Donald C. Gripping device for timber
CN103520887A (zh) * 2013-11-05 2014-01-22 国家电网公司 一种防滑脚扣
CN104225879A (zh) * 2014-10-08 2014-12-24 黄志宽 抱式爬杆器
CN105413123A (zh) * 2015-11-19 2016-03-23 国家电网公司 一种攀登覆冰电杆的脚扣
CN106902497A (zh) * 2017-04-21 2017-06-30 江西电力职业技术学院 脚扣以及登高套件
CN114887304A (zh) * 2022-03-25 2022-08-12 国网山东省电力公司成武县供电公司 一种自动调节登杆工具
US11459777B2 (en) * 2018-08-13 2022-10-04 Alum-A-Pole Corporation Pump jack centering roller system
CN115738205A (zh) * 2021-09-03 2023-03-07 湖北职业技术学院 一种交替蠕动脚蹬爬杆装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102423533B (zh) * 2011-12-01 2016-01-20 河南省电力公司洛阳供电公司 一种细小电杆攀爬脚扣
CN111761561A (zh) * 2020-07-14 2020-10-13 安徽启源电力设备制造有限公司 具有自攀爬功能的电力维修工具放置箱结构及其使用方法
CN115350458B (zh) * 2022-07-13 2023-09-26 宁波建工工程集团有限公司 一种柱子攀登器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US877418A (en) * 1907-01-15 1908-01-21 Thomas Rendahl Pole-climber.
US2039185A (en) * 1934-07-18 1936-04-28 Pfistershammer Josef Climbing-iron
FR1176699A (fr) * 1957-06-12 1959-04-14 Fameca Sa Dispositif destiné à faciliter l'ascension des poteaux
DE1101244B (de) * 1953-09-11 1961-03-02 Bbc Brown Boveri & Cie Vorrichtung zum Besteigen von Masten

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US877418A (en) * 1907-01-15 1908-01-21 Thomas Rendahl Pole-climber.
US2039185A (en) * 1934-07-18 1936-04-28 Pfistershammer Josef Climbing-iron
DE1101244B (de) * 1953-09-11 1961-03-02 Bbc Brown Boveri & Cie Vorrichtung zum Besteigen von Masten
FR1176699A (fr) * 1957-06-12 1959-04-14 Fameca Sa Dispositif destiné à faciliter l'ascension des poteaux

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4161233A (en) * 1977-12-09 1979-07-17 Wirtz James A Portable tree seat
US4597471A (en) * 1985-03-22 1986-07-01 Anderson Carl E Heavy duty pump jack
US5249644A (en) * 1992-01-08 1993-10-05 Amacker Joseph A Hook-type tree climbing stand
US5285868A (en) * 1992-01-08 1994-02-15 Amacker Joseph A Hook-type tree climbing stand
US5407025A (en) * 1993-07-15 1995-04-18 Nickel; Donald C. Gripping device for timber
CN103520887B (zh) * 2013-11-05 2015-06-17 江苏省电力公司宝应县供电公司 一种防滑脚扣
CN103520887A (zh) * 2013-11-05 2014-01-22 国家电网公司 一种防滑脚扣
CN104225879A (zh) * 2014-10-08 2014-12-24 黄志宽 抱式爬杆器
CN105413123A (zh) * 2015-11-19 2016-03-23 国家电网公司 一种攀登覆冰电杆的脚扣
CN105413123B (zh) * 2015-11-19 2018-10-12 国家电网公司 一种攀登覆冰电杆的脚扣
CN106902497A (zh) * 2017-04-21 2017-06-30 江西电力职业技术学院 脚扣以及登高套件
CN106902497B (zh) * 2017-04-21 2019-02-15 江西电力职业技术学院 脚扣以及登高套件
US11459777B2 (en) * 2018-08-13 2022-10-04 Alum-A-Pole Corporation Pump jack centering roller system
CN115738205A (zh) * 2021-09-03 2023-03-07 湖北职业技术学院 一种交替蠕动脚蹬爬杆装置
CN114887304A (zh) * 2022-03-25 2022-08-12 国网山东省电力公司成武县供电公司 一种自动调节登杆工具

Also Published As

Publication number Publication date
GB1126007A (en) 1968-09-05
AT256961B (de) 1967-09-11
CH441080A (de) 1967-07-31

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