WO2011092238A1 - Pince de fixation réglable - Google Patents

Pince de fixation réglable Download PDF

Info

Publication number
WO2011092238A1
WO2011092238A1 PCT/EP2011/051130 EP2011051130W WO2011092238A1 WO 2011092238 A1 WO2011092238 A1 WO 2011092238A1 EP 2011051130 W EP2011051130 W EP 2011051130W WO 2011092238 A1 WO2011092238 A1 WO 2011092238A1
Authority
WO
WIPO (PCT)
Prior art keywords
base part
clamp
adjustable fixation
fixation clamp
assemblies
Prior art date
Application number
PCT/EP2011/051130
Other languages
English (en)
Inventor
Nadav Monselise
Original Assignee
Nadav Monselise
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 Nadav Monselise filed Critical Nadav Monselise
Publication of WO2011092238A1 publication Critical patent/WO2011092238A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/0433—Clamping or clipping connections for rods or tubes being in parallel relationship
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/044—Clamping or clipping connections for rods or tubes being in angled relationship
    • F16B7/048—Clamping or clipping connections for rods or tubes being in angled relationship for rods or for tubes without using the innerside thereof
    • F16B7/0493—Clamping or clipping connections for rods or tubes being in angled relationship for rods or for tubes without using the innerside thereof forming a crossed-over connection

Definitions

  • the invention relates to an adjustable fixation clamp comprising
  • a base part provided with a base part recess
  • a cover part positioned releasable on the base part and provided with a cover part recess, wherein the base part recess and the cover part recess together constitute a receiving portion for a component
  • - locking means capable of locking and unlocking rotation of the first clamp assembly with respect to the second clamp assembly about said common central axis in any position of a plurality of rotational positions of the assemblies.
  • adjustable fixation clamps are known.
  • US laid open patent application US 2006/0287652 Al discloses an adjustable fixation clamp having first and second clamp assemblies positioned about a shaft, each having a pair of vise plates defining receiving portions and insertion portions intersecting the receiving portions.
  • the receiving portions of one clamp receive at least two fixation components such as screws, pins or wires, and the receiving portions of the other clamp assembly may receive at least one connector such as a rod, bar and/or ring.
  • a biasing element is positioned between the first and second clamp assemblies and allows for the fixation components to be snapped into the receiving portions through the insertion portions.
  • fixation clamp described in US 2006/0287652 Al is meant for medical applications, in an external fixation system for holding bone fragments adjacent to each other. It allows for the connection of two components (or things) in various, selectable angles.
  • the angle is changeable by loosening a nut on a bolt positioned on the shaft of the first and second clamp assemblies, turning the clamp assemblies with respect to each other, and tightening the nut again, thereby locking the relative rotational positions of the two assemblies in a defined angle.
  • the known adjustable fixation clamp although adjustable, has as a disadvantage that considerable effort is required for adjusting the relative rotational positions of the two clamp assemblies from one angle to another. Moreover, when loosening the nut, the clamp assemblies become mutually unlocked and the receiving portions of the two clamp assemblies are somewhat loosened. Manipulation of the angle and/or the components held in the receiving portions cumbersome, i.e. time-consuming and laborious.
  • the present invention has as a goal to provide an improved fixation clamp.
  • the present invention has as goal to reduce the amount of time and/or effort required for manipulation of the components held in the receiving portions, with respect to their mutual angle and/or their presence/absence in the receiving portions.
  • the locking means may now be another than a nut and bolt connection, more easy to operate.
  • the components may be retained in the clamp in a manner different from using a nut and bolt connection, also more easy to operate, and independent from operation of the locking means of the angle.
  • the fixation clamp will become better suited for application in various areas where frequent manipulation of the components held in the receiving portions is needed, including but not limited to lamp stands, construction toys, games, and any joint based structure.
  • the locking and unlocking actions of the locking means comprise of the translation of one of the base parts relative to another piece of the clamp.
  • These two parts may be, for example, the two base parts, a base part and a button, or an indentation of a base part and a button on the other base part. In this manner, it becomes possible to make the unlocking and locking actions very simple.
  • an embodiment of an adjustable fixation clamp is characterised in that the locking means comprise a plurality of mutually facing dents on the base parts of the first and second assembly and in that the first and second assembly are held between two translational positions on the central axis, the first position being one where the base part dents are in mutual engagement and fix the relative rotational position of the assemblies on said central axis in one of a plurality of possible rotational positions, the second position being one where the two adjacent base parts at such a mutual distance that the dents are out of mutual engagement, and in that the connecting means is provided with biasing means that press the assemblies into contact with each other.
  • the clamp is locked in its natural state, and the releasable unlocking consists of the simple action of pulling the two assemblies apart. Locking consists of releasing the assemblies again. It is noted that the idea of cooperating dents on two opposing parts is in itself well- known to a skilled person in the art; therefore, this is not further clarified.
  • fixation clamp is characterized in that the connecting means comprises
  • connection means is located between the walls of said first and second hollow cylindrical bodies and clamped between the end face of the securing element and the first hollow cylindrical body.
  • At least one of the cover parts is mounted on the corresponding base part by means of two snap-in hooks on said cover part that engage in two corresponding openings in said base part, and said cover part can be released by pushing the two hooks towards each other.
  • the cover part can be removed and replaced easily, in its turn allowing for easy and quick removal of the components present in the receiving portions, such as, for example, rods, bars, rectangular sticks, structures provided with ribs, and non- symmetrical structures.
  • a cover part may be mounted on the corresponding base part by means of a hinge connection between said cover part and said base part. In this manner, the cover part remains connected to the base part, so that it won't get lost and does not require a hand to bear it.
  • the at least one cover part may be locked on said base part by means of a single releasable snap-in hook on the cover part that engages in a corresponding opening in said base part.
  • the two receiving portions of at least one assembly of the first and second assemblies constitute an elongated opening with an axis having an angle to the central axis of essentially 90 degrees. In that manner, rods or bars may be held in the receiving portions without the risk of touching each other and thus interacting, even when rotation is over 360 degrees.
  • At least one of the cover parts comprises at least one rib oriented radially with respect to said elongated opening and delimits the latter opening.
  • at least one base part recess or cover part recess may be provided with a wall with a relatively high friction coefficient, for instance made of a rubber.
  • the surface of the receiving recession part may also be covered with silicone or any other material with a high friction coefficient .
  • At least one of the two receiving portions of the first and second assemblies passes through the central axis. This allows for a symmetrical construction and symmetrical load on the construction, and reduced weight and costs as a result. Manipulability also improves .
  • the adjustable fixation clamp may be made of an environmentally friendly material, such as a mixture of biological degradable polymer with natural fibers. Possibly, the material is suited for injection moulding.
  • the adjustable fixation clamp in its assembled state, has the shape of a cylinder, with an axis parallel to the central axis of the clamp. This allows for constructions having convenient holding and manipulation of the clamp and the components.
  • the clamp in its assembled state, has the shape of a ball. This allows for a lightweight and optically elegant construction.
  • Figure 1 shows a perspective view of an embodiment of an adjustable fixation clamp according to the invention
  • FIG. 2 shows an exploded view in perspective of the same embodiment
  • Figure 3 shows a cross-sectional view of a part of the clamp shown in Figure 1
  • Figures 4a and 4b show the clamp of Figures 1-3 in two different rotational positions.
  • an adjustable fixation clamp 1 comprises a first clamp assembly, comprising a base part 2 provided with a base part recess 3, and a cover part 4 positioned releasable on the base part 2 and provided with a cover part recess 5, wherein the base part recess and the cover part recess together constitute a receiving portion 6 ( Figure 1) for a component.
  • the clamp 1 also comprises a second clamp assembly, comprising a base part 7 provided with a base part recess 8, and a cover part 9 positioned releasable on the base part 7 and provided with a cover part recess 10, wherein the base part recess and the cover part recess together constitute a receiving portion 11 ( Figure 1) for a component .
  • a connecting means for the first and second assemblies is best seen in Figure 3. It consists of a first hollow cylindrical body 12 that extends from the first assembly and has an end face 13 provided with an opening on the distal end side. It further consists of a second hollow cylindrical body 14 that has a smaller diameter than the first hollow cylindrical body 12, which hollow cylindrical bodies 12, 14 are positioned coaxially. A plurality of mutually facing 15 dents on the base parts 2 and 7 of the first resp. second assembly serve to lock the relative rotational position of these base parts 2 and 7 when in engagement.
  • the connecting means also has a round securing element 16 with an end face 17, which securing element 15 is inserted in the second hollow cylindrical body 14, with its end face 17 extending over the distal end of the second cylindrical body 14.
  • the securing element is integrated with the second hollow cylindrical body 14, and its end face is bent over the distal end of the second hollow cylindrical body, once the base parts are brought together.
  • a spring 17 is located between the walls of said first 12 and second 14 hollow cylindrical bodies and clamped between the end faces 16 of the securing element 15 and the first hollow cylindrical body 13.
  • the first 2 and second 7 base parts, and therewith the assemblies, are held between two translational positions on the central axis, the first position being one where the base part dents are in mutual engagement and fix the relative rotational position of the assemblies on said central axis in one of a plurality of possible rotational positions, the second position being one where the two adjacent base parts are at a distance large enough to bring the dents 15 out of mutual engagement.
  • the spring 17 serves to bias the base parts 2 and 7 of the first and second clamp assemblies towards each other, into locking engagement. Unlocking can simply be done by manually pulling the two base parts 2 and 7 away from each other; they then may be rotated relatively.
  • each cover part 4, 9 are each mounted on the corresponding base part by means of two opposing snap-in hooks 18 on the cover part 4 resp. 9.
  • Each snap-in hook engages in two corresponding openings 19 of its base part, and the cover part can be released by pushing the two opposing hooks 18 towards each other.
  • each cover part 5, 10 may have only one hook 18 and on the position of the other hook a hinge may be located, connected to the adjacent base part 2, 7.
  • one arm may be a little longer having a wider part in it and being made of a slightly flexible material, in such a manner that, when the clip is released, it is still hanging in place on this longer clip.
  • Each of the receiving portions 6 and 11 constitutes an elongated opening, in which a rod or bar (either hollow or massive) can be positioned and held.
  • the openings have an axis with an angle to the central axis of 90 degrees. In this manner rods placed in the receiving portions 6 and 11 will not interfere with each other, in any rotational relative position of the base parts 2 and 7.
  • the cover parts comprise a number of ribs oriented radially with respect to the adjacent elongated opening and delimits the latter opening.
  • the base part recesses are provided with wall inserts 20 made of silicon rubber. Due to the relatively high friction coefficient of this rubber, and a slightly clamping action of a component, e.g. a rod, between each base part and corresponding cover, the component is held in place in the receiving portion 6 or 11.
  • the clamp is made of ABS, polypropylene, or biologically degradable materials. For high-strength applications, it may be made of steel, for example. Other materials are possible.
  • the diameter of the clamp in this example is 6 cm, for application in furniture, and may vary in different applications, e.g. it may be 3 cm for a construction toy.
  • the clamp is, as clearly visibly in Figures 1, 2 and 4, ball-shaped.
  • Figure 4 shows the clamp 1 as connecting two hollow tubes 21.
  • the tubes 21 are positioned parallel, in Figure 4b they are perpendicular. These positions are obtained by pulling the two assemblies in the clamp 1 a bit apart, and then turning them, and finally letting them come into mutual engagement - by their dents 15 - again to lock the relative position of the tubes.
  • clamps 1 and rods 21 serving as construction toys By combining a number of clamps 1 and rods 21 serving as construction toys, larger structures may be created, comparable to Lego in the sense of allowing much freedom of construction. This is the case if single rods are held by two or more clamps.
  • the tubes may be adjusted with respect to their direction simply and quickly, by pulling and turning, and the tubes may also be taken out of a clamp 1 or put into a clamp by simply clicking off and on a cover 4 or 9.
  • the adjustable fixation clamp according to the invention may be used in various applications, for example in lamps, microphone stands, adjustable shower heads, games, construction toys of various scales, toys and toy elements, and even furniture.
  • the locking means may comprise dents radially on two circular base parts, with an unlocking (or, release) button that operates in a radial direction.
  • the T-shaped pin may be a screw.
  • provisions may be made for improving grip, such as a high friction material, and cams on useful positions, e.g. near the adjacent edges of the base parts and on the cover parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

L'invention porte sur une pince de fixation réglable (1) comprenant un premier ensemble pince et un second ensemble pince dont chacun comprend une partie base (2, 7) comportant un évidement de partie base (3, 8), et une partie couvercle (4, 9) positionnée de façon détachable sur la partie base et munie d'un évidement de partie couvercle (5, 10), l'évidement de partie base et l'évidement de partie couvercle constituant ensemble une partie de réception (6, 11) pour un composant, et des moyens d'assemblage qui maintiennent au moins une partie des ensembles pinces adjacents l'un à l'autre, capables de tourner l'un par rapport à l'autre autour d'un axe central, des moyens de verrouillage (15) qui verrouillent et déverrouillent la rotation du premier ensemble pince par rapport au second ensemble pince autour dudit axe central dans n'importe quelle position d'une pluralité de positions de rotation des ensembles, les moyens d'assemblage assemblant les ensembles uniquement à leur partie base. Les actions de verrouillage et de déverrouillage des moyens de verrouillage peuvent comprendre la translation de l'une des parties bases par rapport à une autre pièce de la pince.
PCT/EP2011/051130 2010-01-27 2011-01-27 Pince de fixation réglable WO2011092238A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29857110P 2010-01-27 2010-01-27
US61/298,571 2010-01-27

Publications (1)

Publication Number Publication Date
WO2011092238A1 true WO2011092238A1 (fr) 2011-08-04

Family

ID=43807131

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/051130 WO2011092238A1 (fr) 2010-01-27 2011-01-27 Pince de fixation réglable

Country Status (1)

Country Link
WO (1) WO2011092238A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1261347A (fr) * 1960-04-06 1961-05-19 Assemblage articulé de barres ou tubes
DE3636639A1 (de) * 1986-10-28 1988-05-05 Abr Bausystem Ag Bauelement-system
US20020037193A1 (en) * 2000-09-27 2002-03-28 Alan Dick & Company Limited Cable clamp
EP1690505A1 (fr) * 2005-02-09 2006-08-16 Stryker Trauma SA Insert pour une borne, borne avec une tel insert et articulation composée de cela
US20060287652A1 (en) 2005-06-21 2006-12-21 Lessig Richard K Adjustable fixation clamp and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1261347A (fr) * 1960-04-06 1961-05-19 Assemblage articulé de barres ou tubes
DE3636639A1 (de) * 1986-10-28 1988-05-05 Abr Bausystem Ag Bauelement-system
US20020037193A1 (en) * 2000-09-27 2002-03-28 Alan Dick & Company Limited Cable clamp
EP1690505A1 (fr) * 2005-02-09 2006-08-16 Stryker Trauma SA Insert pour une borne, borne avec une tel insert et articulation composée de cela
US20060287652A1 (en) 2005-06-21 2006-12-21 Lessig Richard K Adjustable fixation clamp and method

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