IL257315B - Mechanism for climbing scaffolding - Google Patents

Mechanism for climbing scaffolding

Info

Publication number
IL257315B
IL257315B IL257315A IL25731518A IL257315B IL 257315 B IL257315 B IL 257315B IL 257315 A IL257315 A IL 257315A IL 25731518 A IL25731518 A IL 25731518A IL 257315 B IL257315 B IL 257315B
Authority
IL
Israel
Prior art keywords
gripping element
climbing shoe
gripping
shoe according
climbing
Prior art date
Application number
IL257315A
Other languages
Hebrew (he)
Other versions
IL257315A (en
Original Assignee
Sba Metal Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sba Metal Works Ltd filed Critical Sba Metal Works Ltd
Priority to IL257315A priority Critical patent/IL257315B/en
Publication of IL257315A publication Critical patent/IL257315A/en
Publication of IL257315B publication Critical patent/IL257315B/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
    • E04G11/28—Climbing forms, i.e. forms which are not in contact with the poured concrete during lifting from layer to layer and which are anchored in the hardened concrete
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/20—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by walls

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Ladders (AREA)

Description

Mechanism for Climbing Scaffolding TECHNOLOGICAL FIELD The presently disclosed subject matter is related to the field of climbing scaffolding systems, and in particular, to a guidance and gripping mechanism operational in a climbing scaffolding system.
BACKGROUND ART References considered to be relevant as background to the presently disclosed subject matter are listed below:- EP 2995749- GB 2533142- GB 2524472- GB 2447710- US 8,714,512Acknowledgement of the above references herein is not to be inferred as meaning that these are in any way relevant to the patentability of the presently disclosed subject matter.
BACKGROUND Climbing shoe mechanisms for guiding and gripping of a structural member articulated to a scaffolding assembly, employed in climbing scaffolding systems, are known in the art. Climbing scaffolding systems employing climbing shoes are useful in the construction of multi-story structures for transporting workers and equipment up and down the faces of the structure on scaffolding assemblies, so that various activities on the various levels of the structure can be performed.One example, EP 2995749 discloses a method for lowering a shuttering or protective element when working on buildings, wherein the shuttering or protective element is connected via a carrier to a guide and retaining device fastened to a building 025428025-01 part wherein the carrier comprises a plurality of engaging elements arranged spaced apart from one another in the direction of longitudinal extension of the carrier and the guide and retaining device comprises a receiving unit with a retaining element, wherein the carrier is raised substantially in a vertical direction from an initial position in which the retaining element is in engagement with a first engaging element of the carrier, wherein during the lifting the retaining element is temporarily moved into an inactive position by means of a control device in which inactive position the carrier is lowered beyond its initial position and the retaining element is then moved back into an active position by means of the control device so that during the lowering of the carrier a second engaging element of the carrier comes into engagement with the retaining element of the receiving unit.Another example, GB 2533142 discloses a hook arrangement that is mountable to a construction for selectively engaging and supporting a climbing screen or climbing formwork, the hook arrangement comprising a hook, which is pivotally mounted within a housing and is moveable between a retracted position in which it lies at least partially within the housing and cannot engage the climbing screen or climbing formwork and a deployed position in which it lies at least partially outside the housing and can engage the climbing screen or climbing formwork; a biasing means, which is arranged to urge the hook into the deployed position; and a latching mechanism, which comprises a catch that is biased towards a first position in which it can engage the hook or an element rotatable with the hook, and is engageable automatically by pivotal movement of the hook from the deployed to the retracted position for maintaining the hook in the retracted position.Yet another example, GB 2524472 discloses a climbing formwork system comprising a formwork assembly, which is adapted to be mountable on and translatable along a construction; a support bracket that is arranged to be fixed to the construction; and a guide rail; wherein formwork support assembly attachment means are provided for removably attaching the formwork support assembly to the support bracket, and guide rail attachment means are provided for removably attaching the guide rail to the formwork support assembly or the support bracket.Yet another example, GB 2447710 discloses a scaffold arrangement comprising a scaffold component and a support unit for releasably supporting the scaffold component in an operative position on a scaffold assembly or building, the support unit 025428025-01 comprising a mounting portion for fixedly mounting he support unit to said scaffold assembly, a supporting member for seating a first part of the scaffold component, and a releasable locking member movable to a locking position for locking the scaffold component to the support unit, the arrangement being such that when the scaffold component is seated on the supporting member in said operative position, and the locking member is in said locking position, the locking member is spaced immediately below a second part of the scaffold component and acts as a back-up supporting member for arresting uncontrolled downward movement of the scaffold component relative to the support unit.Yet another example, US 8,714,512 discloses a climbing shoe of a climbing formwork for fixing to a concreting section of a building wall, the wall having a substantially vertical front surface, the climbing shoe structured to cooperate with a climbing rail having bolts directly connecting two beams, the climbing shoe comprising a wall shoe part structured for direct attachment to the front surface of the wall; a sliding shoe part; a connecting element disposed between and cooperating with said wall shoe part and said sliding shoe part, wherein said connecting element comprises a stub shaft for detachable connection of said sliding shoe part to said wall shoe part, said stub shaft having a major longitudinal axis, said wall shoe part, said sliding shoe part and said stub shaft each being structured such that said major longitudinal axis of said stub shaft is substantially horizontal and parallel to the front surface of the wall when said wall shoe part is attached to that front surface, wherein said wall shoe part, said sliding shoe part and said connecting element are further structured such that removal of said connecting element detaches said sliding shoe part from said wall shoe part; a first claw disposed on said sliding shoe part; a second claw disposed on said sliding shoe part and facing said first claw, said first and said second claws being structured to embrace and guide the climbing rail for displacement of the climbing rail in a substantially vertical direction, said second claw being structured to pivot or telescope relative to said sliding shoe part for inserting or removing the climbing rail, wherein said wall shoe part, said sliding shoe part, said first claw and said second claw are structured to permit removal of said sliding shoe part from engagement with said wall shoe part and from engagement with the climbing rail subsequent to said pivoting or telescoping of said second claw out of engagement with the climbing rail and following removal of said connecting element, the sliding shoe part structured to be removed from 025428025-01 in between the beams of the climbing rail and the wall shoe while said climbing rail is adjacent to said wall shoe during use.
GENERAL DESCRIPTION Climbing scaffolding systems are known in the art, and they are useful during construction of a multi-story structure for transporting workers and equipment up and down the faces of the structure on scaffolding assemblies, so that various activities on the various levels of the structure can be performed.For example, a scaffolding assembly in use in a climbing scaffolding system operating on a multi-story structure under construction, can comprise a formwork assembly or assemblies for casting concrete elements, and the system can be employed to perform the concrete pours required to construct successively higher stories of the structure. That is, after a first story of the structure is cast and cured, the climbing scaffolding system can be raised to a higher level to cast yet another story of the structure. In this manner the structure grows in height until the uppermost story has been cast.In order to use a climbing scaffolding system such as that described above, climbing shoes can be anchored to the structure at regular intervals along an axis of translation along which the scaffolding assembly will move up and down the face of the structure. Typically, this translation axis of the scaffolding assembly is a vertical axis.The climbing shoes can be anchored, for example, to concrete slabs forming the floor slabs of a concrete structure at each floor of the structure. In another example, the climbing shoes can be anchored to a vertically-oriented element of the structure, e.g., a wall of the structure.Each climbing shoe anchored to the structure along the translation axis comprises a guiding channel and a gripping element. The guiding channel guides a structural member articulated to the scaffolding assembly, for example, a rail, and the structural member comprises a plurality of stopper elements, one of which can be gripped by the gripping element, thereby securing the scaffolding system at a particular level of the structure which is associated with the gripped stopper element.The climbing shoes can be anchored to a plurality of floor slabs of consecutive stories of a multi-story structure along a translation axis of a climbing scaffolding assembly, such that their guiding channels are aligned along a guidance axis 025428025-01 substantially parallel to the translation axis, so that the guidance axis is aligned between the consecutive stories of the structure.The presently disclosed subject matter is concerned with climbing scaffolding systems which can be used in the construction of multi-story structures. According to a first aspect of the present disclosure there is provided a climbing shoe as described above, and further configured to be anchored to the structure by a connecting pin, which can connect between the housing of the climbing shoe and a structural element of the structure, such as a floor slab or a wall.The gripping element of the climbing shoe can be pivotally secured within the climbing shoe housing by a pivot pin. The gripping element can comprise a gripping end and a bearing end disposed on opposite sides of the gripping element.The gripping element can be configured to pivot in a first direction, for example, a counter-clockwise direction, into a deployed position. The gripping element can further be configured, such that when it is in the deployed position, its gripping end can grip one of the stopper elements disposed on the structural member, and its bearing end can come into contact with the connecting pin.The connecting pin can be configured, such that when the gripping element is in the deployed position, the connecting pin can exert a blocking force blocking the gripping element from continued pivoting in the first direction, and bear at least a portion of a load resulting from a weight of the scaffolding assembly being suspended from the gripping element via the structural member.The blocking force exerted by the connecting pin can thereby contribute to arresting a downward movement of the scaffolding assembly. The connecting pin, the housing, the pivot pin and the gripping element can be configured to withstand the forces exerted as a result of the scaffolding assembly being suspended from the gripping element via the structural member.The gripping element can be biased to pivot in the first direction as a result of a moment force acting on a center of gravity of the gripping end of the gripping element, where a moment arm of the moment force is a distance between the pivot pin and the center of gravity.The gripping element can further be configured to pivot in a second direction opposite from the first direction into a deflected position, as a result of the scaffolding assembly moving in an upward direction, i.e., ascending, along with the structural 025428025-01 member attached to it, such that a bottom surface of the gripping element is impinged upon, i.e., struck, by at least one of the plurality of stopper elements on the structural member, i.e., an ascending stopper element.The gripping element can further be configured such that as a result of pivoting into a deflected position, the gripping element can be prevented from reaching the deployed position. Gripping of a stopper element disposed on the structural element by the gripping end of the gripping element is thus also prevented when the gripping element pivots in the second direction.The gripping element can further be configured such that as a result of pivoting into a deflected position, the gripping element can be clear of a path of an ascending stopper element.The gripping element can further be configured such that when it pivots in the second direction opposite from the first direction, into a deflected position, it can be prevented from pivoting too far, i.e., over-pivoting, into a hyper-deflected position. The gripping element can attain the hyper-deflected position by pivoting through an angle of pivoting with respect to the deployed position, which is greater than an angle of pivoting in which the moment arm between the pivot pin and the center of gravity of the gripping end of the gripping element is zero.That is, the gripping element can be configured such that when it pivots in the second direction to the maximum possible extent, it still remains biased toward pivoting in the first direction in order to reach the deployed position, when it is not being impinged upon by an ascending stopper element, on account of the moment force exerted by gravity on the gripping end of the gripping element through the moment arm between the pivot pin and the center of gravity.The gripping element can be configured to be prevented from pivoting further in the second direction than is desirable, with respect to maintaining the bias of the gripping element to pivot in the first direction so as to attain the deployed position when it is not being impinged upon by an ascending stopper element, that is, from over­pivoting in the second direction, by any known suitable method. For example, a geometrical configuration of at least one of the gripping element and the housing can block the gripping element from reaching the hyper-deflected position. In another example, a physical blocking element installed in the housing of the climbing shoe can serve to block the gripping element from reaching the hyper-deflected position. In 025428025-01 another example, a spring can be employed to maintain the desired bias of the gripping element.The gripping element can be configured to pivot between the deployed position and a deflected position, wherein the deflected position is less deflected than a hyper- deflected position.The gripping element can further be configured such that as a result of pivoting into a deflected position, it can reach a retracted position in which it is at least partially retracted into the housing of the climbing shoe.A geometrical configuration of at least one of the gripping element and the housing can block the gripping element from fully retracting into the housing of the climbing shoe.The gripping end can be configured to grip one of the plurality of stopper elements when the gripping element is in the deployed position, and to release a grip on a gripped one of the plurality of stopper elements when the gripped one of the plurality of stopper elements ceases to exert a force of weight of the scaffolding assembly on the gripping end.The connecting pin can be oriented along a substantially horizontal axis.The pivot pin can be oriented along a substantially horizontal axis.The axes along which the connecting pin and the pivot pin are oriented can be parallel to one another.The stopper elements can each be oriented along a substantially horizontal axis.The axes along which the pivot pin and the stopper elements are oriented can be parallel to one another.The housing of the climbing shoe can be anchored to a structural member of a structure by an anchoring member. The housing of the climbing shoe can be sandwiched between two end flanges of the anchoring member connected to the anchoring member. The end flanges of the anchoring member can be welded to the anchoring member, bolted to the anchoring member, or otherwise articulated to the anchoring member.The gripping end of the gripping element and the stopper elements can have complementary shapes, such that each stopper element is shaped such that it can be gripped by the gripping end of a gripping element, and the gripping end is shaped such that it can grip the shape of the stopper element. 025428025-01 For example, the stopper elements can have a bar shape, and the gripping end of the gripping element can have a hooked shape.The gripping element and the stopper elements can further have complementary shapes so that when an ascending stopper element impinges on a bottom surface of the gripping element and then slides along its edges, i.e., its side surfaces, as the gripping element is deflected into the deflected position, and then as it returns under the force of its own weight to the deployed position, the stopper element can slide smoothly along the edges, i.e., the side surfaces, of the gripping element.For example, the stopper elements can have rounded edges, and the gripping element can have smooth side surfaces and rounded corners.The gripping end can have a tapered section and a cradling nest for optimal receiving and gripping of a stopper element. The tapered section can have a narrowest width at its tip, wherein the tip of the tapered section is the point on the gripping element which is furthest from the bottom surface of the gripping element. The distance from the tip of the tapered section to the bottom surface of the gripping element can define a height of the gripping element when it is in the deployed position.The tip of the tapered section can be rounded, and a sloped surface can connect between the tapered tip and the cradling nest in which the stopper element can be received. The rounded profile of the tip of the tapered section, and the sloped surface connecting between it and the cradling nest can allow smooth receipt of the stopper element into the cradling nest, characterized by a sliding rather than a jarring motion.The shape of the cradling nest can be configured to receive the stopper element in as smooth a manner as possible, in accordance with the shape of the stopper element. For a stopper element with a round cross-section, the cradling nest can have a concave shape, with a rounded bottom and upturned edges, such that when the rounded stopper element is received therein, it can settle down into the space designated for it and be held securely there by the upturned edges of the concave cradling nest.The bottom surface of the cradling nest can be at a height with respect to the bottom surface of the gripping element which is less high than the height of the tip of the tapered section with respect to the bottom surface of the gripping element. Thus, the tapered section along with its tip can function as a barrier at the edge of the cradling nest, so as to keep the stopper element securely cradled within the cradling nest. 025428025-01 The cradling nest can furthermore be aligned with an axis along which the stopper elements are aligned along the structural member, such that when the gripping element grips a stopper element, no extraneous forces are exerted on the gripping element, for example, by the weight of the scaffolding assembly via the structural member.The guiding channel of the climbing shoe can have a cross-sectional shape configured to cage in at least a portion of the structural member with respect to a cross­sectional configuration of the structural member, thereby restricting lateral movement of the structural member while leaving it free to move along a longitudinal axis of the guiding channel.The longitudinal axis can be oriented along an at least substantially vertical axis.The guiding channel can be formed by arms extending bilaterally from and substantially perpendicular to the longitudinal axis of the guiding channel, the arms extending outward from the longitudinal axis to encompass at least a portion of the structural member and then turning back inward toward the longitudinal axis, thereby forming the cross-sectional shape.The arms can define the cross-sectional shape of the guiding channel in a plane substantially perpendicular to the longitudinal axis of the guiding channel. The cross­sectional shape can have a perimeter which is closed along a majority of its length, thereby forming a barrier to lateral movement of the structural member. The cross­sectional shape can have an opening along a portion of its perimeter which is smaller than a dimension which is commensurate with providing the structural member freedom to move in a lateral plane.At least one of the arms can comprise a hinged connection, allowing the opening in the perimeter of the cross-sectional shape to be widened, thereby allowing removal of the structural member from the climbing shoe by lateral translation.The connecting pin of the climbing shoe can be configured to be removable such that removal of the connecting pin from the climbing shoe frees the climbing shoe from the anchoring member anchoring the climbing shoe to the structure.According to a second aspect of the present disclosure, there is provided a climbing scaffolding system comprising at least one climbing shoe for guidance and gripping of a structural member articulated to a scaffolding assembly configured for movement along a face of a structure, such as the climbing shoe described above, 025428025-01 wherein the climbing shoe can comprise a housing and a guiding channel, wherein the guiding channel is configured to guide the structural member as the structural member moves along a longitudinal axis of the guiding channel, and the housing is connectable by a connecting pin to an anchoring member anchorable to a structural element of the structure. The housing of the climbing shoe can comprise a gripping element pivotally secured within the housing by a pivot pin, and the gripping element can comprise a gripping end and a bearing end disposed on opposite ends of the gripping element, and be configured to pivot in a first direction into a deployed position, wherein the gripping end can be configured to grip one of a plurality of stopper elements disposed along the structural member, and the bearing end can be configured to come into contact with the connecting pin, the connecting pin being configured to block the gripping element from continued pivoting in the first direction.
BRIEF DESCRIPTION OF THE DRAWINGS In order to better understand the subject matter that is disclosed herein and to exemplify how it may be carried out in practice, embodiments will now be described, by way of non-limiting example only, with reference to the accompanying drawings, in which:Fig. 1 is a schematic perspective illustration of a climbing shoe operational in accordance with the presently disclosed subject matter, in a self-climbing scaffolding system in use on a multi-story structure under construction;Fig. 2A is a close-up view of the climbing shoe shown in Fig. 1;Fig. 2B is a partially cutaway close-up view of the climbing shoe shown in Figs. and 2A;Fig. 2C is a partially cutaway close-up view of the climbing shoe shown in Fig. 2B after climbing of the scaffolding assembly;Fig. 2D is a close-up view of the climbing shoe shown in Fig. 2C after further climbing of the scaffolding assembly;Fig. 2E is a partially cutaway close-up end view of the climbing shoe shown in Fig. 2D after a session of climbing of the scaffolding assembly has ended;Fig. 3A is a top view of the climbing shoe shown in Figs. 1, 2A and 2B;Fig. 3B is a close-up view of the climbing shoe shown in Fig. 3A; and 025428025-01 Fig. 3C is a partially cutaway close-up perspective view of the climbing shoe shown in Figs. 1, 2A, 2B, 2D, 3A and 3B.
DETAILED DESCRIPTION OF EMBODIMENTS Reference is now made to Fig. 1, which illustrates one embodiment of a climbing shoe 10 in accordance with the presently disclosed subject matter. The climbing shoe 10 shown in Fig. 1 is operational in a climbing scaffolding system 40, in which a scaffolding assembly is maneuvered alternately up and down the face of a multi-story structure 45 which is under construction, in accordance with the requirements of the construction process.For example, a climbing scaffolding system such as the climbing scaffolding system 40 shown in Fig. 1 can be used to set up the formwork for the concrete pours required to construct each successive upper story of a multi-story structure, such as structure 45, as each lower story of the structure is cast and cured, and the structure grows in height.In Fig. 1, only a scaffolding panel 35 of the scaffolding assembly operational in the climbing scaffolding system 40 is visible. It will be understood that the exemplary climbing scaffolding system 40 shown in Fig. 1 comprises additional panels and horizontal platforms articulated to the scaffolding panel 35, such as, for example, formwork assembly panels, but that these cannot be seen in Fig. 1 because they are outside of the frame of view of the figure.It can further be seen in Fig. 1 that the scaffolding panel 35 is connected to a structural member, which in the example of Fig. 1 is a rail 15, on the side of the scaffolding panel 35 which faces the structure 45, near each one of the right and left ends of the scaffolding panel 35. Each rail 15 is guided within a guiding channel of the climbing shoe 10, which will be discussed in further detail below with respect to Figs. 3A and 3B.It will be appreciated that any reference to a rail 15 or a climbing shoe 10 in the discussion below shall be considered to be equally applicable to both rails 15 and climbing shoes 10 on both the right and left ends of the scaffolding panel 35, however, for the sake of clarity, reference may be made at times only to a single rail 15 and a single climbing shoe 15. 025428025-01 In a climbing scaffolding system such as the climbing scaffolding system shown in Fig. 1, the climbing shoes 10, which serve to guide the scaffold assembly­bearing rails 15, are disposed at intervals along an axis along the face of the structure along which the climbing and descending of the scaffolding will take place. This axis can be considered to be an axis of translation of the scaffolding assembly, and it is typically a vertical axis.It will be appreciated however, that the axis of translation, as well as other typically vertical elements or orientations discussed herein with respect to the presently disclosed subject matter, may not be precisely vertical, but rather substantially vertical, or mostly vertical. It will therefore be understood that the term "vertical" as used herein can be understood to mean not only precisely vertical, but also substantially vertical, or mostly vertical.In the example shown in Fig. 1, the exemplary climbing shoe 10 can be seen to be connected to an anchoring member 14, which is anchored to a concrete slab 43 of the structure 45. It can be understood for the purposes of the discussion below that the climbing shoes 10 are anchored to multiple floor slabs 43 of consecutive stories of the structure 45, with their guiding channels aligned along a longitudinal axis of the guiding channels, so as to provide a guiding channel for the rails 15 which is aligned along a guidance axis between the consecutive stories of the structure. The guidance axis is furthermore, typically parallel to the axis of translation.In addition to serving the function of guiding the rails 15, the climbing shoes serve the additional function of alternately gripping or releasing a grip on the rails 15, such that the scaffolding assembly can climb or descend along the face of the structure 45 as necessary in a controlled manner. That is, the climbing shoe 10 is configured to alternately grip and release a grip on the rail 15 such that the scaffolding assembly can be raised to a selected level or lowered to a selected level on the structure 45, and once positioned at the selected level, to remain there securely without slipping.In order to perform its gripping function, the climbing shoe 10 comprises a gripping element 16, which is configured to grip one of a plurality of stopper elements disposed at intervals of a distance x along the rail 15, as shown in Fig. 1. When the rail 15 is gripped in a climbing shoe 10, at least a portion of the weight of the 025428025-01 scaffolding assembly, articulated to the rail 15 via the scaffolding panel 35, is supported by the climbing shoe 10.The climbing shoe 10 of the climbing scaffolding system 40 can be seen in greater detail in Fig. 2A, reference to which is now made. It can be seen in Fig. 2A that the climbing shoe 10 is connected to the anchoring member 14 referred to hereinabove with respect to Fig. 1, by a connecting pin 12. It can further be seen in Fig. 2A that the climbing shoe 10 comprises a housing 30, which comprises a gripping element 16, pivotally secured within the housing 30 by a pivot pin 18.It will be appreciated that the climbing shoe 10 can be freed from the anchoring member 14, and thus from the structure 45, by removal of the connecting pin 12. When the climbing shoe 10 is connected to the anchoring member 14, the connecting pin can be held securely in place by a locking pin inserted in an opening 33 at each end of the connecting pin 12, where the connecting pin 12 passes through an opening in each of the end flanges 14E of the anchoring member 14 disposed on either side of the housing 30.It will appreciated that the pivot pin 18 can also be held securely in place by a locking pin in a similar manner to that described above for the connecting pin 12, or in any other suitable manner.In Fig. 2A, the gripping element 16 is shown in its deployed position, having pivoted about the pivot pin 18 in a counter-clockwise direction to a maximal extent, as will be explained in further detail below with respect to Fig. 2B. In the deployed position, as shown in Fig. 2A, the gripping element 16 is in a position to grip one of the stopper elements 22 disposed along the rail 15.It will be appreciated that when the gripping element 16 is in the deployed position, as shown in Fig. 2A, the scaffolding panel 35 (as well as any other scaffolding panels or formwork assemblies articulated thereto) is effectively suspended from the gripping element 16 via the rail 15, resulting in a force of weight W acting upon the gripping element 16, the force of weight W comprising at least a portion of the weight of the scaffolding assemblies articulated to the scaffolding panel 35. This force is indicated in Fig. 2A by the downward-pulling arrow W, which, as shown, acts upon the gripping element 16 where it grips one of the stopper elements 22 disposed along the rail 15. 025428025-01 Fig. 2B, reference to which is now made, shows a partial cutaway close-up view of the climbing shoe 10 shown in Fig. 2A. An end flange 14E of anchoring member 14, and a housing side panel 30P of housing 30, which are shown in Fig. 2A, are removed from the view shown in Fig. 2B so as to expose the entirety of the gripping element to view. Furthermore, the climbing shoe arm 27 shown in Fig. 2A, which will be discussed in further detail below with respect to Figs. 3A and 3C, is removed from the view shown in Fig. 2B so as not to obstruct the bottom side of the gripping element from view.It can be seen in Fig. 2B that the gripping element 16 comprises a gripping end and a bearing end 56 on opposite sides of the gripping element 16. It can further be seen that in the deployed position of the gripping element 16, shown previously in Fig. 2A, the part of the gripping element 16 which grips one of the stopper elements 22 on the rail 15, and as a result is acted upon by the force W, is the gripping end 53.As further shown in Fig. 2B, due to the pivotal connection of the gripping element 16 to the climbing shoe housing 30 at the pivot pin 18, the force W, acting through a moment arm R1 between the stopper element 22 and the pivot pin 18, introduces a moment force M into the gripping element 16 which urges the gripping element 16 to pivot further in the counter-clockwise direction beyond the deployed position.However, due to the configuration of the gripping element 16 with respect to the connecting pin 12 as shown in Fig. 2B, wherein the bearing end 56 of the gripping element 16 comes into contact with the connecting pin 12 when the gripping element is in the deployed position, the connecting pin 12 exerts a blocking force B in a downward direction, as shown in Fig. 2B, blocking the gripping element 16 from continued pivoting in the counter-clockwise direction.The blocking force B is exerted by the connecting pin 12 in opposition to the force generated against it by the moment force M, and acting through a moment arm Rbetween the connecting pin 12 and the pivot pin 18, the blocking force B generates a moment force C in the clockwise direction, in opposition to the moment force M and cancelling it out, thereby preventing gripping element 16 from pivoting further in the counter-clockwise direction.Thus the connecting pin 12 bears at least a portion of the force W which, as explained previously, is the weight of at least a portion of the scaffolding assembly 025428025-01 suspended from the gripping end 53 of the gripping element 16 via the rail 15. It will be appreciated that the blocking force B thus contributes to arresting a downward movement of the scaffolding assembly.It will further be appreciated that the climbing shoe 10 can be operational in a climbing scaffolding system 40 which requires the use of a crane for raising and lowering of the scaffolding assembly, or in a self-climbing scaffolding system. Returning now to Fig. 1, the climbing shoe 10 can be seen to be operational in a self­climbing scaffolding system 40, with the scaffolding assembly being raised by hydraulic power supplied by a mobile hydraulic pump 82 operated by an operator J.In the snapshot of the scaffolding assembly raising operation shown in Fig. 1, a hydraulic cylinder 83 is shown to be connected at its fixed end 87 to the climbing shoe 10, and at its extending end 89, it is shown to be equipped with a gripping member 16’, which, in a similar manner to gripping element 16, is configured to grip one of the plurality of stopper elements 22 disposed along the rail 15. Both of the ends 87 and of the hydraulic cylinder 83 are shown in Fig. 1 to be connected to the hydraulic pump by hydraulic hoses 84, so that the hydraulic pump 82 can power the hydraulic cylinder 83.As the hydraulic pump 82 is actuated, the gripping members 16’ on the right and left sides of the scaffolding panel 35 are raised in height, as the extending ends 89 of the hydraulic cylinders 83 are extended upward. It will be appreciated that when this occurs, the rail 15 begins to move upward, i.e., ascend, along with the stopper elements gripped by the gripping members 16’ and raised by them, and along with the scaffolding assembly articulated to the rail 15 via the scaffolding panel 35. The scaffolding assembly thus climbs alongside the face of the structure 45.At the same time, the stopper elements 22 which had just been gripped by the climbing shoes 10 just before the raising of the scaffolding assembly was initiated, are also raised along with the rail 15, and they are thus raised up and out of the gripping elements 16 of the climbing shoes 10 in which they had just been gripped. When this occurs, the force of weight W of the scaffolding assembly ceases to be exerted on the just-gripped stopper elements 22, and instead, the force of weight W of the scaffolding assembly is transferred to the stopper elements 22 gripped by the gripping members 16’.It will be appreciated that it is this transfer of the force of weight W of the scaffolding assembly between one set of stopper elements 22 gripped by a fixed set of 025428025-01 gripping elements 16, to a second set of stopper elements 22 gripped by a translatable set of gripping members 16’ which allows the climbing scaffolding assembly to make climbing progress in an upward direction.Furthermore, as can be seen in Fig. 2C, reference to which is now made, as the rail 15 continues to move upward, i.e., ascend, the gripping element 16 is impinged, i.e., struck, on its bottom surface 59 by an ascending stopper element 22A disposed on the rail below the just-gripped stopper element 22J which had just previously been gripped by the gripping element 16 of the climbing shoe 10. As the stopper elements 22 are disposed along the rail 15 at intervals x from one another, as mentioned previously with respect to Fig. 1, and as shown in Fig. 2C, the ascending stopper element 22A is disposed at a distance of the interval x below the just-gripped stopper element 22J.It is further noted with respect to Fig. 2C that the initial positions of the just- gripped stopper element 22J and the ascending stopper element 22A just before the initiation of the raising of the scaffolding assembly are marked with the numeral 1 in Fig. 2C. It can further be seen in Fig. 2C that after the scaffolding assembly has been raised through a distance d, the just-gripped stopper element 22J and the ascending stopper element 22A are located in their second positions, marked with the numeral 2 in Fig. 2C. In their second positions, as can be seen in Fig. 2C, the just-gripped stopper element 22J has risen out of the grip of the gripping element 16 of the climbing shoe 10, and the ascending stopper element 22A has come into contact with the bottom surface 59 of the gripping element 16.As the force of weight W is no longer bearing down on the gripping end 53 of the gripping element 16, the upwardly-directed force U exerted on the bottom surface of the gripping element 16 by the ascending stopper element 22A, acting through the moment arm R3 between the ascending stopper element 22A and the pivot pin 18, introduces a moment force Q into the gripping element 16 which urges the gripping element 16 to pivot in a direction opposite the direction of pivoting which urges the gripping element 16 into the deployed position.That is, for the exemplary climbing shoe 10 shown in the figures, for which the direction of pivoting into the deployed position is counter-clockwise, the upwardly- directed force U exerted on the bottom surface 59 of the gripping element 16 by the ascending stopper element 22A urges the gripping element 16 to pivot in the clockwise 025428025-01 direction, and the gripping element 16 is thus prevented from attaining the deployed position.Moreover, the upwardly-directed force U urges the gripping element 16 to pivot in the clockwise direction such that it attains a deflected position, in which it is at least partially retracted into the housing 30, as will be discussed further below with respect to Fig. 2D. It will be appreciated that the just-gripped stopper element 22J shown in the position marked with the reference numeral 1 in Fig. 2C does not interfere with the pivoting of gripping element 16 in the clockwise direction, because the ascending stopper element 22A impinges on the bottom surface 59 of the gripping element when it is in its second position marked with the reference numeral 2, and the just- gripped stopper element 22J is also in its second position marked with the reference numeral 2, where it does not interfere with the pivoting of the gripping element 16 in the clockwise direction.Fig. 2D, reference to which is now made, shows the just-gripped stopper element 22J and the ascending stopper element 22A in their third positions, marked with the reference numeral 3, subsequent to additional movement upward, with respect to Fig. 2C, of the rail 15. The gripping element 16 can be seen to have been forced by the upwardly-directed force U exerted by the ascending stopper element 22A as described above with respect to Fig. 2C, to pivot in the clockwise direction into a deflected position, which is shown in Fig. 2D to be a partially retracted position inside the housing 30 of the climbing shoe 10.It can further be seen in Fig. 2D that after impinging upon the bottom surface of the gripping element 16, the ascending stopper element 22A slides along the bottom surface 59 of the gripping element 16. In Fig. 2D the ascending stopper element 22A can be seen to be nearly at the end of its slide along the bottom surface 59 of the gripping element 16. It will be appreciated that the bottom surface 59 of the gripping element 16 can be configured to be smooth, and that the edges of the stopper elements can be configured to be rounded, so that the ascending stopper element 22A can slide smoothly along the bottom surface 59 of the gripping element 16 as the ascending stopper element 22A deflects the gripping element 16 into the deflected position.As the rail 15 continues to rise, the ascending stopper element 22A continues to rise along with it, and the rounded corner 61 of the gripping element 16 slides past the rounded edge of the ascending stopper element 22A as the gripping element 16 begins 025428025-01 its pivoting movement in the counter-clockwise direction under the force exerted upon it by the weight of the gripping end 53 to bring it into the deployed position.The scaffolding assembly can continue to be raised by the extending arm until the maximum extent allowed by the hydraulic cylinder 83 is reached, or until the extension is halted by the operator J prior to reaching the maximum extension allowed by the hydraulic cylinder 83. Then, when the upward movement of the rail 15 is halted, there are no further ascending stopper elements 22 to continue striking the bottom surface 59 of the gripping element 16 and to keep the gripping element 16 from reaching the deployed position.Then, as shown in Fig. 2D, in the absence of any upwardly-directed force U from an ascending stopper element 22, the gripping element 16 is acted upon by a force of weight D of the gripping end 53, at a center of gravity G of the gripping end 53, through a moment arm R4 between the pivot pin 18 and the center of gravity G of the gripping end 53, resulting in a moment force V which causes the gripping element 16 to pivot in the counter-clockwise direction to reach the deployed position. The gripping element 16 is thus biased to pivot in the first direction, i.e., the counter-clockwise direction, to reach the deployed position.As the gripping element 16 begins to return from the deflected position to the deployed position, the rounded corner 61 of the gripping element 16 slides past the rounded edge of the ascending stopper element 22A, as described previously above. Then, as the rail 15 continues to rise, and the ascending stopper element 22A continues to rise along with it, the rounded edge of the ascending stopper element 22A slides along the side surface 63 of the gripping element 16 before the gripping element finally descends into the deployed position.It will be appreciated, as mentioned previously with respect to the bottom surface 59 of the gripping element 16, that the side surface 63 of the gripping element can also be configured to be smooth, so that the ascending stopper element 22A can slide smoothly along the side surface 63 of the gripping element 16 as the gripping element 16 returns from the deflected position into the deployed position.Once in the deployed position, the gripping element 16 is positioned once again to grip one of the stopper elements 22 disposed along the rail 15, and to hold at least a portion of the weight of the scaffolding assembly secure in that position. 025428025-01 It will be appreciated however, that the gripping element 16 will only grip one the stopper elements 22 if the climbing of the scaffolding assembly comes to a halt, the rising of the rail 15 and its stopper elements 22 ceases, and the scaffolding assembly can come to rest where it is suspended from the rail 15 at the stopper elements 22 located just above the gripping element 16 at the time the rising of the rail 15 ceases.In the event that the climbing of the scaffolding assembly continues, and the railand its stopper elements 22 continue to rise, the gripping element 16, rather than gripping a stopper element 22 located just above it, will again be deflected by an ascending stopper element 22A ascending from beneath it as described above with respect to Fig. 2C.It will further be appreciated, as shown in Fig. 2D, that the gripping element is prevented from pivoting further in the clockwise direction than is desirable, with respect to maintaining the bias of the gripping element 16 to pivot in the counter­clockwise direction so as to attain the deployed position when it is not being impinged upon by an ascending stopper element 22A. That is, with respect to the example shown in Fig. 2D, it is desirable that the latching element 16 not pivot further in the clockwise direction than a point at which the moment arm R4 between the pivot pin 18 and the center of gravity G of the gripping end 53 becomes zero, at which point the gripping element 16 would no longer be acted upon by gravity to pull it down into the deployed position when no upwardly-directed force U was acting upon it.In the example shown in Fig. 2D, the gripping element 16 can be seen to have pivoted through an angle of pivoting 0 with respect to the deployed position, in which the angle of pivoting 0 is equal to zero. It can further be seen that the gripping elementis prevented from pivoting beyond the angle of pivoting 0 by a geometrical configuration of the housing 30 of the climbing shoe 10 with respect to a geometrical configuration of the gripping element 16. That is, as the housing 30 cannot geometrically accommodate any further retraction of the gripping element 16 inside it, the gripping element 16 is blocked from pivoting in the clockwise direction any further than the point at which an extremity of the gripping element 16 comes into contact with a blocking element of the housing 30. This can be seen in Fig. 2D where the tapered section 21 of the gripping end 53 of the gripping element 16 can be seen to have come into contact with a roof portion 34 of the housing 30. The gripping element 16 thus 025428025-01 remains in a partially retracted position inside the housing 30, as it is blocked from pivoting further and fully retracting inside the housing 30.As can be seen in Fig. 2E, reference to which is now made, the gripping end of the gripping element 16 has a tapered section 21 and a cradling nest 66 for optimal receiving and gripping of a stopper element 22. The tapered section 21 is narrowest at its tip 17, the furthest point from the bottom surface 59 of the gripping element 16. As shown in Fig. 2E, the distance from the tip 17 of the tapered section 21 to the bottom surface 59 of the gripping element 16 defines a height H of the gripping element when it is in the deployed position.As further shown in Fig. 2E, the tip 17 of the tapered section 21 is rounded, and a sloped surface 28 connects between the tip 17 and the cradling nest 66 in which the stopper element 22 is received. The rounded profile of the tip 17, and the sloped surface 28 connecting between it and the cradling nest 66 allows the stopper element to be received smoothly into the cradling nest 66, in a sliding rather than jarring motion.The shape of the cradling nest 66 is further configured to receive the stopper element 22 in as smooth a manner as possible, in accordance with the shape of the stopper element 22. For the example of climbing shoe 10 shown in Fig. 2E, in which the stopper element 22 has a round cross-section, the cradling nest 66 has a concave shape, with a rounded bottom and upturned edges, such that when the rounded stopper element 22 is received therein, it settles down into the space designated for it and is held there securely by the upturned edges of the cradling nest 66.It can furthermore be seen in Fig. 2E that the cradling nest 66 is disposed in the gripping end 53 of the gripping element 16 such that, with respect to the deployed position of the gripping element 16, its bottom surface is disposed at a height N with respect to the bottom surface 59 of the gripping element 16 which is less high than the height H of the tip 17 of the tapered section 21 with respect to the bottom surface 59. Thus, the tapered section 21 up through the tip 17 also functions as a barrier at the edge of the cradling nest 66, so as to keep the stopper element 22 cradled within the cradling nest 66.It can furthermore be seen in Fig. 2E that the cradling nest 66 is aligned with an axis Z along which the stopper elements 22 are aligned on the rail 15, such that when the gripping element 16 is gripping a stopper element 22, no extraneous forces are 025428025-01 exerted on the gripping element 16 ,such as those which could be generated by the weight of the scaffolding assembly via the rail 15.Once the weight of the scaffolding assembly is again supported by the gripping elements 16 in the fixed climbing shoes 10 on both sides of the scaffolding panel 35, the translatable set of gripping members 16’ at the extending ends 89 of the hydraulic cylinders 83, which are no longer supporting the weight of the scaffolding assembly, can be disengaged from the stopper elements 22 which they had been gripping. The extending ends 89 of the hydraulic cylinders 83 with the translatable set of gripping members 16’ at their ends, can then be retracted, so that the hydraulic cylinders 83 can be made ready for another cycle of climbing to be initiated.It will be appreciated that the representation of the rail 15 in Figs. 2A, 2B, 2C, 2D and 2E is a partially cutaway view of the rail 15. The structure of the rail 15 shown in Figs. 1, 2A, 2B, 2C, 2D and 2E can be more clearly seen in Fig. 3A, reference to which is now made.Fig. 3A shows a top view of the climbing shoe 10 shown in Figs. 1, 2A, 2B, 2C, 2D and 2E. In Fig. 3A, the climbing shoe 10 can be seen to be anchored to the concrete slab 43 of the structure 45 by the connection between the housing 30 of the climbing shoe 10 and the anchoring member 14, provided by the connecting pin 12. The connecting pin 12 can be seen to pass through the housing 30 of the climbing shoe, and an end flange 14E of the anchoring member 14 disposed on each side of the housing 30. The gripping element 16 grips a stopper element 22.As shown in Fig. 3A, the exemplary rail 15 comprises two beams 62, each having a ‘C’-shaped cross-section, oriented with their webs back-to-back, and connected to one another by a plurality of bolts, serving as stopper elements 22, disposed at intervals along the length of the beams 62. While the webs of the C-beams are connected to each other by the plurality of bolts serving as stopper elements 22, they are also separated from one another by the width of the bolts. In cross-section, each end of the rail 15 is ‘T’-shaped, with the horizontal line at the top of each ‘T’ formed by the two flanges of the back-to-back ‘C’-shaped beams 62.As can be seen in Fig. 3A, the guiding channel 72 of the climbing shoe 10 is configured to slidingly receive the rail 15 so as to guide its vertical translation within the climbing shoe 10, and it is formed by two arms 27 extending bilaterally from and substantially perpendicular to the longitudinal axis of the guiding channel 72. As can be 025428025-01 seen in Fig. 3A, the arms 27 are shaped so as to extend outward from the longitudinal axis to encompass the width of one ‘T’-shaped end of the rail 15, and then to turn back inward toward the longitudinal axis, and to come into close proximity with the narrower center section of the rail 15 connecting the two ‘T’-shaped ends of the rail 15.It will be appreciated that the guiding channel 72 of the climbing shoe 10 thus has a cross-sectional shape which is restrictive to lateral movement of the rail 15, as it cages in a portion of the rail 15 with respect to a configuration of its cross-section.Fig. 3B, reference to which is now made, shows a close-up view of the cross­sectional shape of the guiding channel 72 of the climbing shoe 10. As shown in Fig. 3B, the cross-sectional shape of the guiding channel 72 has a perimeter comprising a closed section 74C and an open section 74F. The closed section 74C of the perimeter 74 of the cross-sectional shape of the guiding channel 72 is closed in by structural elements of the climbing shoe 10, and as can be seen in Fig. 3B where the closed section 74C of the perimeter 74 is marked by a dashed line, a majority of the length of the perimeter 74 is comprised of the closed section 74C. Because the closed section 74C is closed in by structural elements of the climbing shoe 10, the closed section 74C comprises a barrier to lateral movement of the rail 15 when the rail 15 is enclosed in the guiding channel 72 of the climbing shoe 10, such that the rail 15 is free to move only along the longitudinal axis of the guiding channel 72.The open section 74F of the perimeter 74 of the cross-sectional shape of the guiding channel 72 is free from being closed in by structural elements of the climbing shoe 10, and as can be seen in Fig. 3B where the open section 74F of the perimeter 74 is marked by a broken line of alternating dots and dashes, the length of the open section 74F is smaller than a dimension of an opening which would allow the rail 15 freedom to move in a lateral plane.It is further shown in Fig. 3B that if, for example, the arms 27 of the climbing shoe 10 did not include the sections 78R and 78L of the confining structural elements of the climbing shoe 10, which are indicated in the figure by hatching, such that the open section 74F’ of the cross-sectional shape of the guiding channel 72 was as wide as the width of the rail 15, then the rail 15 would not be caged in by the cross-sectional shape of the guiding channel 72, and the lateral translation of the rail 15 would not be restricted, such that the rail 15 could easily be pulled away from the climbing shoe 10 in a direction away from the face of the structure 45 through the opening 74F’. 025428025-01 When the rail 15 is gripped in the climbing shoe 10, lateral movement of the scaffolding assembly away from the guidance axis, to the sides along the face of the structure 45, or away from the face of the structure 45, is prevented by the restraining enclosure of the guiding channel 72 of the climbing shoe 10. However, the rail remains unrestricted to move along the guidance axis formed by the series of guiding channels 72 in the series of climbing shoes 10 anchored along the translation axis of the structure 45.As can further be seen in Fig. 3A, the arms 27 of the climbing shoe 10 each comprise an elbow 94, which allows the forearm segment 27F of either of the arms to be pivoted away from the longitudinal axis of the guiding channel 72, effectively opening a breach in the cage formed by the arms 27 around the ‘T’-shaped end of the rail 15, and thereby allowing removal of the rail 15 from the climbing shoe 10 by lateral translation.The pivoting capability of the elbows 94 can be described more clearly with respect to Fig. 3C, reference to which is now made. It will be appreciated that in Fig. 3C, a side flange 27S of the arm 27, which is shown in Fig. 2A, has been removed from view so as not to obstruct elements of the figure which will be discussed in further detail hereinbelow.In Figs. 3A and 3C, the arms 27 are in shown in the closed position, in which the ‘T’-shaped end of the rail 15 is caged within the guiding channel 72 of the climbing shoe 10 and lateral movement of the rail 15 is restricted. While the arms 27 are in the closed position, as shown in Figs. 3A and 3B, the leg 96L of the U-shaped locking bolt is inserted in opening 98, which passes through the top and bottom shoulder segments 27T and 27B respectively of the arm 27, while the forearm segment 27F of the arm 27, which is sandwiched in between them, is in the closed position. While the U-shaped locking bolt 96 remains in this position, the forearm segment 27F of the arm is prevented from swinging outward into the open position, as it is blocked from moving in this direction by the leg 96L of the U-shaped locking bolt 96.The forearm segment 27F of the arm 27 can be swung outward into the open position when the U-shaped locking bolt 96 is lifted in an upward direction until the end 96E of the leg 96L of the U-shaped locking bolt 96 clears the forearm segment 27F of the arm 27. It will be appreciated that the U-shaped locking bolt 96 is prevented from being completely lifted out of the arm 27 by the widened flange 96F disposed at the tip 025428025-01 of the longer leg 96G of the U-shaped locking bolt 96, which is larger than the opening through which the longer end 96G of the U-shaped locking bolt 96 passes.Then, when the U-shaped locking bolt 96 clears the forearm segment 27F of the arm 27, the forearm segment 27F of the arm 27 can be pivoted outward, such that the opening 99 disposed on the forearm segment 27F of the arm 27 becomes aligned with the opening 98, which, as mentioned previously, passes through the top and bottom shoulder segments 27T and 27B respectively of the arm 27. The arm 27 can then be maintained in the open position by the re-insertion of the U-shaped locking bolt 96 in the opening 98 in the top shoulder segment 27T, such that it passes through the opening 99 of the forearm segment 27F before passing through the opening 98 in the bottom shoulder segment 27B.While the U-shaped locking bolt 96 remains in this position, the forearm segment 27F of the arm 27 is prevented from swinging back inward into the closed position, as it is blocked from moving in this direction by the leg 96L of the U-shaped locking bolt 96.It will appreciated that the U-shaped locking bolt 96 can be held securely in position, when the arm 27 is in the closed position or in the open position, by the insertion of a locking pin in opening 97, or in any other suitable manner. 025428025-01

Claims (31)

- 25 - CLAIMS:
1. A climbing shoe for guidance and gripping of a structural member articulated to a scaffolding assembly configured for movement along a face of a structure, said climbing shoe comprising a housing and a guiding channel, wherein said guiding channel is configured to guide said structural member as the structural member moves along a longitudinal axis of the guiding channel, and said housing is connectable by a connecting pin to an anchoring member anchorable to a structural element of said structure, said housing comprising a gripping element pivotally secured within the housing by a pivot pin, said gripping element comprising a gripping end and a bearing end disposed on opposite ends of said gripping element, and configured to pivot in a first direction into a deployed position, wherein said gripping end is configured to grip one of a plurality of stopper elements disposed along the structural member, and said bearing end is configured to come into contact with said connecting pin, the connecting pin being configured to block the gripping element from continued pivoting in said first direction.
2. The climbing shoe according to claim 1, wherein the connecting pin, the housing, the pivot pin and the gripping element are configured such that a blocking force exerted by the connecting pin to block the gripping element from continued pivoting in the first direction contributes to arresting a downward movement of the scaffolding assembly.
3. The climbing shoe according to claim 1, wherein the gripping element is biased to pivot in the first direction as a result of a moment force acting on a center of gravity of the gripping end of the gripping element.
4. The climbing shoe according to claim 1, wherein the gripping element is configured to pivot through a second direction, opposite from the first direction, during a course of movement of the scaffolding assembly in an upward direction, due to impingement of at least one of said plurality of stopper elements on a bottom surface of 0254280279-01 - 26 - the gripping element, such that the gripping element is prevented from attaining said deployed position.
5. The climbing shoe according to claim 4, wherein the gripping element is configured to pivot in said second direction to attain a deflected position, wherein an angle of pivoting of said deflected position with respect to said deployed position is less than an angle of pivoting of a hyper-deflected position in which a moment arm is zero.
6. The climbing shoe according to claim 5, wherein the deflected position is a retracted position wherein the gripping element is at least partially retracted into the housing.
7. The climbing shoe according to claim 5, wherein a geometrical configuration of at least one of the gripping element and the housing blocks the gripping element from reaching said hyper-deflected position.
8. The climbing shoe according to claim 6, wherein a geometrical configuration of at least one of the gripping element and the housing blocks the gripping element from fully retracting into the housing.
9. The climbing shoe according to claim 5, wherein the gripping element is configured to pivot between the deployed position and the deflected position.
10. The climbing shoe according to claim 5, wherein the gripping end is configured to grip one of the plurality of stopper elements when the gripping element is in the deployed position, andto release a grip on a gripped one of the plurality of stopper elements when said gripped one of the plurality of stopper elements ceases to exert a force of weight of the scaffolding assembly on the gripping end.
11. The climbing shoe according to claim 1, wherein the gripping end has a hooked shape configured to grip said one of said plurality of stopper elements, wherein a shape 0254280279-01 - 27 - of at least one of the plurality of stopper elements is a bar shape configured to be gripped by said hooked shape.
12. The climbing shoe according to claim 1, wherein the guiding channel has a cross-sectional shape configured to cage in at least a portion of the structural member with respect to a cross-sectional configuration of the structural member, thereby leaving the structural member free to move only along said longitudinal axis.
13. The climbing shoe according to claim 1, wherein said longitudinal axis is oriented along a vertical axis.
14. The climbing shoe according to claim 12, wherein the guiding channel is formed by arms extending bilaterally from and perpendicular to the longitudinal axis, said arms extending outward from the longitudinal axis to encompass a portion of the structural member and then turning back inward toward the longitudinal axis, thereby forming said cross-sectional shape.
15. The climbing shoe according to claim 12, wherein the guiding channel is formed by arms extending bilaterally from and perpendicular to the longitudinal axis, said arms defining said cross-sectional shape in a plane perpendicular to the longitudinal axis, wherein the cross-sectional shapehas a perimeter which is closed along a majority of its length thereby forming a barrier to lateral movement, andhas an opening along a portion of said perimeter which is smaller than a dimension of an opening commensurate with providing the structural member freedom to move in a lateral plane.
16. The climbing shoe according to claim 15, wherein at least one of the arms comprises a hinged connection, allowing said opening to be widened, thereby allowing removal of the structural member from the climbing shoe by lateral translation. 0254280279-01 - 28 -
17. The climbing shoe according to claim 1, wherein the connecting pin is configured to be removable such that removal of the connecting pin from the climbing shoe frees the climbing shoe from said anchoring member.
18. The climbing shoe according to claim 1, wherein said housing is sandwiched between two end flanges of said anchoring member and said connecting pin passes through a first one of said two end flanges, said housing, and a second one of said two end flanges.
19. The climbing shoe according to claim 1, wherein the two end flanges of the anchoring member are welded to the anchoring member.
20. The climbing shoe according to claim 1, wherein the connecting pin is oriented along a horizontal axis.
21. The climbing shoe according to claim 1, wherein the pivot pin is oriented along a horizontal axis.
22. The climbing shoe according to claim 1, wherein the axes along which the connecting pin and the pivot pin are oriented are parallel to one another.
23. The climbing shoe according to claim 1, wherein the stopper elements are oriented along a horizontal axis.
24. The climbing shoe according to claim 1, wherein the axes along which the pivot pin and the stopper elements are oriented are parallel to one another.
25. The climbing shoe according to claim 4, wherein the gripping end comprises a tapered section having a tip and a cradling nest, wherein a maximal height of said gripping element is a distance from said tip to the bottom surface of the gripping element and a width of said tapered section is narrowest at the tip. 0254280279-01 - 29 -
26. The climbing shoe according to claim 25, wherein the tip has a rounded shape, the cradling nest is configured to receive the stopper element, and a sloped surface connects between the tip and the cradling nest to allow smooth receipt of the stopper element into the cradling nest.
27. The climbing shoe according to claim 25, wherein the stopper element has a round cross-section and the cradling nest has a concave shape with a rounded bottom and upturned edges to receive the stopper element smoothly and hold it securely.
28. The climbing shoe according to claim 25, wherein a height from the bottom surface of the gripping element to a bottom surface of the cradling nest is less high than said maximal height.
29. The climbing shoe according to claim 25, wherein the cradling nest is aligned with an axis along which the stopper elements are aligned along the structural member.
30. A climbing scaffolding system comprising at least one climbing shoe for guidance and gripping of a structural member articulated to a scaffolding assembly configured for movement along a face of a structure, said climbing shoe comprising a housing and a guiding channel, wherein said guiding channel is configured to guide said structural member as the structural member moves along a longitudinal axis of the guiding channel, and said housing is connectable by a connecting pin to an anchoring member anchorable to a structural element of said structure, said housing comprising a gripping element pivotally secured within the housing by a pivot pin, said gripping element comprising a gripping end and a bearing end disposed on opposite ends of said gripping element, and configured to pivot in a first direction into a deployed position, wherein said gripping end is configured to grip one of a plurality of stopper elements disposed along the structural member, and said bearing end is configured to come into contact with said connecting pin, the connecting pin being configured to block the gripping element from continued pivoting in said first direction. 0254280279-01 - 30 -
31. The climbing shoe according to claim 1, wherein at least one of the plurality of stopper elements has rounded edges and the gripping element has smooth side surfaces and rounded corners, and wherein said at least one of the plurality of stopper elements is configured to slide along said smooth side surfaces and said rounded corners when said at least one of the plurality of stopper elements comes into contact with the gripping element. 0254280279-01
IL257315A 2018-02-01 2018-02-01 Mechanism for climbing scaffolding IL257315B (en)

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Citations (3)

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Publication number Priority date Publication date Assignee Title
EP2365159A1 (en) * 2010-03-05 2011-09-14 ULMA C y E, S. COOP. Self-climbing perimetric protection system for construction works in buildings
US8714512B2 (en) * 2005-06-29 2014-05-06 Peri Gmbh Devisible climbing shoe of a climbing formwork
GB2533142A (en) * 2014-12-11 2016-06-15 Ischebeck Titan Ltd Hook arrangement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8714512B2 (en) * 2005-06-29 2014-05-06 Peri Gmbh Devisible climbing shoe of a climbing formwork
EP2365159A1 (en) * 2010-03-05 2011-09-14 ULMA C y E, S. COOP. Self-climbing perimetric protection system for construction works in buildings
GB2533142A (en) * 2014-12-11 2016-06-15 Ischebeck Titan Ltd Hook arrangement

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