EP1725148B1 - Stand for anchoring a rod-shaped object, particularly a tree - Google Patents
Stand for anchoring a rod-shaped object, particularly a tree Download PDFInfo
- Publication number
- EP1725148B1 EP1725148B1 EP05715878A EP05715878A EP1725148B1 EP 1725148 B1 EP1725148 B1 EP 1725148B1 EP 05715878 A EP05715878 A EP 05715878A EP 05715878 A EP05715878 A EP 05715878A EP 1725148 B1 EP1725148 B1 EP 1725148B1
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- EP
- European Patent Office
- Prior art keywords
- tree
- stand
- stand according
- region
- base region
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G33/00—Religious or ritual equipment in dwelling or for general use
- A47G33/04—Christmas trees
- A47G33/12—Christmas tree stands
- A47G33/1213—Christmas tree stands comprising a single handle or pedal for releasing, tensioning or locking of clamping members
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G33/00—Religious or ritual equipment in dwelling or for general use
- A47G33/04—Christmas trees
- A47G33/12—Christmas tree stands
- A47G2033/1286—Christmas tree stands comprising watering means, e.g. a water reservoir
Definitions
- the invention relates to a stand for anchoring a rod-shaped object, in particular for anchoring a tree, with a base region and with an integrated receiving region arranged therein for a lower trunk portion of a tree or other rod-shaped body to be anchored, for example a flagpole or the like.
- Tree stands for the stable anchoring of trees, especially of Christmas or Christmas trees, are known in different designs. Simpler variants have a bottom plate and an associated receiving area, in which the lower trunk portion of the tree to be anchored inserted and clamped by means of three or four thumbscrews. For secure anchoring of the tree, the toggle screws must be tightened with considerable force.
- tree stands which are provided with a pulling device, by means of which a series of pivotable holding elements can be pressed against the stem portion of the tree, so that it is anchored stable.
- These traction devices typically include a tensioning lever with a ratcheting and locking device which can normally be operated by foot power.
- the locking device typically has a locking device that can be opened for quick release of the tree.
- Christmas tree stand with cable and pivotally mounted pivoting levers in which a Christmas tree is held with claws, which are pulled together with a rope, are, for example, from the DE 39 32 473 A1 , from the DE 297 07 643 U1 from the DE 199036334 A1 as well as from the DE 201 05 005 U1 known.
- a pivotable retaining element with a return spring which is part of a Christmas tree stand, is further from the DE 102 02 891 A1 known.
- the DE 203 09 947 U1 further relates to a tensioning device in the manner of a ratchet for tensioning a rope.
- the clamping device is also part of a Christmas tree stand.
- a disadvantage of many known systems is the relatively complex production of the tree stand and the lack of leakage safety of water.
- An object of the present invention is to provide a tree stand which has a simple and inexpensive to produce design and also allows easy handling.
- An inventive stand for the stable anchoring of a rod-shaped object in particular a tree, Christmas tree o.
- the like Includes a base portion and a receiving portion arranged therein for a lower portion of the object to be anchored.
- the stand has at least three holding elements which are arranged concentrically around the receiving region and are pivotable about a horizontal axis in a plane perpendicular to the longitudinal axis of the rod-shaped article or tree, preferably by means of a single traction element guided in each case in the holding elements is operatively connected, are clamped against the circumference of the rod-shaped object or the trunk portion of the tree.
- One end of the traction means can be clamped in the clamping device, while the other end can be fixed or countered in one of the holding elements or in the tree stand.
- the traction means is mounted in the form of a rope loop in the holding elements.
- Such a stand has the advantage of a secure and stable anchoring possibility of a tree to be anchored, with only very low clamping forces are necessary.
- the relatively high self-locking force of the tree almost around its entire circumference or possibly also several times looping traction means within the guides of the holding elements also provides over the known Baumpartym for a significant improvement in the holding properties of the tree stand according to the invention.
- At least three pivotable retaining elements are necessary.
- four or five holding elements may be provided, which are expediently arranged uniformly over the circumference of the receiving area.
- the traction means is displaceably guided in each case in receptacles of the at least three holding elements.
- the traction means is guided in each case in a receptacle of the at least three holding elements, which is arranged between a pivot axis and an upper free end of the holding element.
- a free end of the traction means is countered with a stop against a guide of the holding elements.
- This holding element is preferably the same, in which the traction means is passed from the holding elements to the clamping device.
- the holding element, in which the free end of the traction means is countered a further guide for the traction means.
- the free end of the traction means is countered in the tree stand itself, for example. In the base area. In principle, the same effects and effects can be achieved as with a traction mechanism end countered in a holding element.
- the guides in the at least three holding elements are each arranged horizontally.
- the further guide for the traction means can be arranged horizontally or arranged slightly inclined, so that a favorable deflection of the traction means between the clamping device and the holding element is made possible.
- the traction means may also have a curved or curved course.
- a further guide for the traction means can be provided, which ensures a favorable deflection and the traction means.
- the traction means preferably runs, in this order, between the tensioning device, the guide in the receiving area, the further guide in the first holding element and the horizontal guide in the further holding elements.
- a pulling means in particular a rope, such as a steel wire rope or a plastic rope o. The like.
- the traction means need not necessarily be designed for very high tensile loads, since the clamping forces of the stator according to the invention are much lower than in the known Baumpartym. Therefore, the traction means may also be a relatively simple plastic rope, for example, from a plastic such as polyamide, nylon o. The like. May exist.
- a preferred embodiment of the invention provides that a fixing device for the lower trunk section is arranged at the bottom of the receiving area.
- This fixing device which with a lower end face of the trunk portion can interact, for example, be a centering or holding mandrel.
- the fixing device may also be a ring, a receiving trough or another suitable device which secures the lower end face of the tree to be anchored against slipping.
- the holding elements are preferably designed in each case as pivotable holding claws or the like.
- the holding elements may each be associated with a spring tensioning device, which pivots the holding elements with unloaded traction means from the tree.
- the spring tensioning device can in each case ensure that when the tensioning device is released the tree is released.
- a metal insert with a plurality of tips or individual tips may be formed, whereby a more stable anchoring of a tree with lower holding or clamping forces is possible.
- the receiving area may in particular be designed as a cup-shaped container, which is closed laterally and towards the bottom, so that, for example, a water filling up to an upper edge of the receiving area is possible without the water running out laterally.
- the invention provides for a one-piece design of the pot-like receiving area for the tree with the base area, which can be produced, for example, by means of an injection molding process.
- stiffening ribs can be provided, which allow a very light and at the same time stable embodiment. Even with relatively small wall thicknesses of the plastic stand or pedestal area that can be produced, a high level of stability and flexural rigidity is ensured.
- the guide in the receiving area for the traction means is preferably arranged on the upper edge of the receiving area.
- the pivot bearings for the retaining elements are preferably arranged in each case at the upper peripheral edges of the receiving area.
- the holding elements, the cup-shaped container of the receiving area and an outer housing shell or the base area can optionally be made of plastic or metal.
- the container and the outer Housing shell and / or the base area also be made as glass, ceramic, clay, wood or concrete.
- the base area may optionally be provided with one or more ballast pieces, which improve the stability of the tree stand. If necessary, these ballast pieces can be integrated into the base area, which can be done, for example, by means of the injection molding process. However, they can also be retrofitted, for example by screwing or gluing from below.
- ballast devices can be arranged between the base, the housing shell and the receptacle, for example in the form of concrete weights or the like. It is also possible to pour ribs with different casting compounds.
- the clamping device preferably has a ratchet function with release device, so that a simple attachment of the tree is possible and that this clamping device can be easily solved again.
- the particular advantage of the stator according to the invention lies in the very simple handling and in a very simple structure.
- the only traction means in particular a traction cable made of steel wire or plastic or the like, wraps around the tree at an angle of at least 300 or approximately 360 degrees.
- the traction means may also multiply, i. wrap around a wrap angle of, for example, 720 degrees or more.
- only locally limited forces occur, which do not lead to any appreciable material loads or twisting phenomena in the upright area and / or in the case of the holding elements or their anchoring in the base region of the upright.
- the largest rope forces act between the tensioning device and the next this arranged gripping arm, in which the traction means is guided.
- stator construction can also be made more economical and simpler in terms of material properties and manufacturing outlay than known constructions.
- the large wrap angle or the multiple convolutions lead to a relatively low cable force, so that the clamping device can be operated with significantly less effort. At the same time, however, it creates a great blocking power for the tree. Nevertheless, the component stability can be reduced without problems, which allows a more cost-effective production.
- the rope tensioning system works optionally without toothing. Instead of a stable steel cable, a lighter and less expensive plastic cable can be used without any problem. The jig has because of the translation on a much better dosing. If a steel cable is used, it may have a very small diameter of less than 1 mm.
- the clamping force acts essentially within the cable loop of the traction device, while in the previously known Baumpartym the entire claw system is pulled to one side of the tree stand, wherein the stand is exposed to considerable forces and deformations.
- the large wrap angle leads to frictional effects between the cable guides and the traction means, so that the cable force is substantially reduced at the rope end anchored in a tensioning element.
- the free end of the rope can be secured and countered much easier, for example by simply hooking in the claw.
- This does not necessarily have to be reinforced, but can be made entirely of plastic.
- the self-locking of the rope leads to a secure anchoring of the tree in the stand, at the same time the rope forces are significantly reduced. Moving or moving the entire clamping unit is very effectively prevented. That is, the retaining claws are better blocked or secured against displacement.
- Another advantage resulting from the clamping technique described with only one pull rope, is the possibility of single-shell or one-piece design of the base and the inner part and the ability to form the receiving area as down and closed on all sides shell.
- the one-piece design of the tree stand allows a particularly cost-effective manufacturability, for example.
- the clamping elements and their brackets can be made in one piece from plastic injection molding.
- the entire building stand can thus be modular and be mounted within a short time, without the need special tools are necessary. If no plastic is to be used for the tree stand, so the shell can be easily made of glass, ceramic, clay, wood, concrete or metal or other suitable material.
- the one-piece construction has the additional advantage that the base area can be freely designed within wide limits.
- the base region may, for example, have a star-shaped contour, which is particularly advantageous for a Christmas tree stand.
- the corners of this star-shaped floor plan can additionally serve to improve the stability of the stand, so that its total volume is less than a cup-shaped stand, which has the same stability and stability.
- FIG. 1 shows a preferred embodiment of a tree stand 10 according to the invention, which has a base portion 12 and a centrally disposed therein, hollow cylindrical receiving portion 14 for a lower trunk portion of a tree to be fastened (not shown) or another rod-shaped body.
- the base portion 12 has in the embodiment shown a hexagonal contour, which is pronounced of a poinsettia. However, this contour is only to be understood as an example. Basically, the base portion 12 may have almost any contours and floor plans, as long as the desired function is achieved.
- decorative elements 123 are arranged in the form of small, raised stars, which may be painted or colored with yellow or golden color or with another color, if necessary.
- Decorative elements 123 can optionally also be produced in a hot embossing print.
- Metal effects can be produced by metallized printing foils. Even mother-of-pearl effects or special structures (eg holograms) are made possible by this. When coloring the tree stand 10 in green color, the decorative elements 123 can offer an attractive visual contrast.
- the gripper arms 18 are each pivotable about a horizontal pivot axis 20, which are arranged approximately tangentially to the upper cylindrical edge 141 of the receiving area 14.
- the gripper arms 18 are each pivotable in a plane which are arranged perpendicular to the pivot axes 20 and parallel to a longitudinal axis of a tree.
- the pivot planes of the four gripper arms 18 each meet in the center of an imaginary central axis through the receiving area 14. This imaginary central axis can coincide with optimally centered tree with its longitudinal central axis.
- the gripping arms 18 have in the illustrated embodiment, in each case at their free ends 24 a tip 26, which penetrate into the trunk of the tree when pressing against the tree gripping arms 18 and can dig there firm.
- a tip 26 which penetrate into the trunk of the tree when pressing against the tree gripping arms 18 and can dig there firm.
- jagged contours cf. FIGS. 21 and 22
- corrugated structures may be provided, each allowing a stable non-positive connection with the tree to be anchored.
- the four pivotable gripping arms 18 each have, in an area slightly above their center, an approximately horizontally extending guide channel 28 for a pull cable 30, which can be put under tension with a tensioning device 32 and caught up.
- the clamping device 32 may, for example, be coupled to a corner of the star-shaped base region 12, so that they are in FIG. 1 indicated corner can act as a retractable lever.
- the lever can, for example, be operated with the foot and act together with a ratchet device or the like, which ensures tensioning of the traction cable 30.
- the gripper arms 18 When recovering or tensioning the traction cable 30 by means of the tensioning device 32, the gripper arms 18 are moved in the direction of the vertical center axis, since a free end of the traction cable 30 is locked in one of the gripping arms 18.
- the gripping arm 18 In the same gripping arm 18 is another guide channel below the first guide channel 28, from which a connection to the clamping device 32 is made. The pull cable 30 is thus tensioned between the tensioning device 32, a deflection 124 in the base region 12, the gripping arm 18 with the two guides and the other three gripping arms 18.
- the clamping device 32 is indicated in the embodiment shown as a foot lever 321, which may be formed in one of the six corners 122 of the base portion 12.
- the foot lever 321 may be located in close proximity to one of the retaining elements 16, with the two guide channels, as shown in FIG FIG. 1 is indicated.
- the foot lever 321 is assigned in this case, the deflection 124 in the base region 12.
- An alternative arrangement of the foot lever 321 is shown in FIG FIG. 1 additionally indicated. Thus, this can also be arranged in a region between two adjacent holding elements 16.
- FIG. 1 also illustrates a preferred embodiment of the tree stand 10, wherein the base portion 12 and the receiving area are formed as a common, closed component.
- the receiving area 14 forms an upwardly open, but closed to all sides and down pot, which is waterproof and thus can be filled to the top with water. This comes with neither the pull cable 30 nor with parts of the clamping device 32 into contact.
- FIG. 2 illustrates in a further schematic perspective view of a slightly modified variant of the tree stand 10 according to the invention, in which the foot lever 321 of the clamping device 32 between two corners 122 of the base portion 12 is arranged.
- the deflection 124 for the pull cable 30 is in this case arranged to the right of the corresponding holding element 16, which is equipped with two guides.
- the openings 181 between the rear sides 182 of the gripper arms 18 and the surface 121 of the base portion 12 are designed so narrow that thus each an anti-trap is formed.
- the front sides 183 of the gripping arms 18, which are directed towards the receiving region 14, are also designed so that in each case an anti-pinch protection is formed.
- the base portion 12 and the receiving portion 14 are formed as a common, downwardly closed shell, so that the tree stand 10 forms a watertight pot.
- the rest of the construction is the same as in FIG. 1 shown variant of the tree stand.
- the sectional view of the FIG. 3 illustrates in a schematic manner the arrangement of the holding elements 16 formed by the gripping arms 18, which are each pivotally mounted on the edge 141 of the receiving area 14. Based on this figure, the closed design of the receiving area 14 is clearly visible.
- the holding elements 16 are each mounted in inserts 34, which are inserted in the vertical direction from above into matching receiving pockets 36 and there by means of latching spring tongues 40 there can be largely locked without play.
- the inserts 34 may be glued or pressed in the receiving pockets 36. If required, these snap connections shown can be released again by pressing in the spring tongues 40 through the latching openings 361, so that the inserts 34 together with the gripper arms 18 mounted pivotably therein can be removed upwards.
- the base portion 12 is provided in the illustrated embodiment with additional stiffening ribs 125, which can increase the stability and torsional rigidity of the tree stand 10.
- the entire base portion 12 with the stiffening ribs 125 and the receiving portion 14 together with the receiving pockets 36 for the inserts 34 consists of one piece.
- the tree stand 10 may in particular be made of injection-molded plastic, which can be produced easily and inexpensively in the desired shape.
- This may, for example, consist of metal and is cast to prevent leaks in the plastic of the bottom portion 143.
- clamping device 32 serve Befest Trentsdome 126, where the clamping device 32 anchored, in particular can be screwed.
- 127 On the underside of the tree stand 10 can be provided 127, which can, for example, by foaming by means of polyurethane o. The like. Can be provided. These stand surfaces 127 can be advantageously mounted during the injection molding process of the base and receiving area 12, 14, for example by means of a two-stage injection molding process. Due to the footprints 127 can be dispensed with a separate floor, which would have to be added later after the clamping device 32 and optional ballast elements (not shown) were mounted and mounted.
- FIG. 4 illustrates the tree stand 10 with mounted clamping device 32, which is formed from a mounting plate 322 and pivotally mounted thereon the foot lever 321.
- the mounting plate 322 is screwed from below to the Befest Trentsdome 126.
- a ratchet device 323 has a gear 324 and a latch lever 325 engaged therewith, which is displaceable against spring force and due to the beveled tooth flanks of the gear 324 at a defined load for slippage of the foot lever 321 provides, without the pull cable 30 further wound and so that it is more tense.
- the function of the ratchet device 323 is based on the FIGS. 29 to 44 explained in more detail.
- FIG. 5 illustrates one of the gripper arms 18 which is pivotally mounted in the insert 34.
- the insert 34 can be anchored in the receiving pocket 36 provided thereon on the cylindrical inner circumferential surface of the receiving region 14 (cf. Figures 3 and 4 ).
- the gripper arm 18 is biased about a leg spring 38 in approximately vertical position, so that when set under tension pull cable 30 is a movement towards the tree out is possible. Once the tensioning device 32 is released and the tension of the pull cable 30 is released, the gripping arm 18 is through the restoring force of the leg spring 38 back to its original position accordingly FIG. 5 brought.
- the arrangement of the spring tongue 40 illustrates that is resiliently disposed on a flat side of the cuboid insert 34.
- a latching lug 401 is arranged, which projects beyond the outline of the insert 34 in the relaxed state of the spring tongue and which is snapped into the latching opening 361 in the fully inserted in the receiving pocket 36 state of the insert 34.
- two identical spring tongues 40 may optionally be arranged parallel to each other, whereby the basically same function is fulfilled.
- two juxtaposed detent openings 361 must be provided in the receiving pocket 36, in which the detents 401 of the spring tongues 40 can engage.
- the finger or Einklemmtik which is formed by a Abdecknase 341 which rests on the outer periphery of the leg spring 38 and this covers partially.
- the Abdecknase 341 protrudes from the upper edge of the inner flat side of the insert 34, on which the spring tongue 40 is fixed, in the direction of the gripper arm 18 upwards and thus forms during pivoting of the gripping arm 18 a reliable anti-trap, since the resulting gap between Abdecknase 341 and thigh spring 38 is so narrow that no finger fits between them.
- this Abdecknase 341 instead of the insert 34 may be formed on the shell 14.
- Cover discs 184 on the gripper arm 18 act as a lateral anti-trap as they cover the axial sides of the leg spring 38.
- a pivot stop 342 on the inner frame of the insert 34 provides for limiting the maximum pivot angle of the gripper arm 18 in its pivotal movement about the pivot axis 20th
- the gripper arm 18 is slightly curved inwardly towards its upper tip 26 at the free end 24, which offers advantages in terms of increased clearance for the tree to be clamped. This can be astrests or adhesions in the Have lower clamping range, without thereby the function of the tree stand 10 is significantly limited.
- the inward-pointing tip 26 improves the leverage ratios for relatively thin trunks, since the pull rope 30 is located relatively high up when gripping arms 18 are fully clamped against the tree. The pull cable 30 can thus exert a sufficient clamping force even with relatively close together pulled gripping arms 18.
- FIGS. 6 and 7 each show a preferred embodiment of the insert 34, on the pivot axis 20 of the gripper arm (not shown) is mounted.
- the leg spring 38 is coaxially disposed about the axis 20 so that it can provide the desired bias of the gripper arm.
- FIG. 8 shows one of the FIG. 6 corresponding view without the leg spring.
- FIG. 9 shows one of the FIG. 7 corresponding view, also without the leg spring.
- the gripper arm 18 is mounted in an axis 41 which is anchored to the two narrow sides of the insert 34.
- the axis 41 can be inserted as soon as the gripper arm 18 and the leg spring 38 are positioned at their intended installation location.
- the side view of FIG. 6 illustrates the previously mentioned pivot stops 342, which are each arranged below the axle stub 42 and limit the maximum pivoting range of the gripping arms 18 in their pivotal movement in the direction of the clamped stem section.
- Abdecknase 341 illustrates, which forms the anti-trap. Furthermore, there is an additional length stop clarifies that defines the exact insertion position of the insert 34 in the receiving pocket 36.
- the Abdecknase 341 has a raised lower edge, which projects beyond the flat side of the insert 34 and which rests at fully inserted insert 34 at an upper edge of the receiving pocket 36 and the upper edge 141 of the receiving area 14.
- the same function is formed by latching projections 343, which are located at the lower edges of the two narrow sides of the insert 34, which carry the axis 41.
- the spring tongue 40 with the locking projection 401 arranged thereon protrudes from the flat side of the cuboid insert 34.
- the insert 34 can be pushed in a vertical direction from above into the slot 36 in the receiving region 14.
- the insert 34 can be locked in the respective receiving pocket 36 and secured against withdrawal.
- the receiving pocket 36 can thus be taken into account in an injection molding process for the production of the base region 12 of the tree stand 10, without the need for time-consuming reworking.
- a particular advantage of such receiving pockets 36 is the possibility of up to the edge 141 towards closed, trough-like design of the receiving area 14, which allows filling with water to the upper edge.
- the bias of the gripping arms 18 can be applied in other ways, for example.
- a tension spring 44 or by a compression spring 45 as shown in the FIG. 10 is clarified. Both springs 44, 45 can be used simultaneously. Alternatively, it may also be sufficient to use either only one tension spring 44 or only one compression spring 45.
- FIG. 11 illustrates an alternative embodiment of an insert 34, in which instead of an axis for supporting the gripping arm 18, two short shaft shoulders 42 are provided, which are each mounted in the insert 34.
- the round shaft shoulders 42 engage in each case in corresponding round receptacles 344 of the same diameter.
- the flat sides of the insert 34 are slightly bent apart.
- a leg spring 38 or a tension spring 44 and / or a compression spring 45 may be provided.
- the bias for the gripper arm 18 may be selectively applied by a leg spring, a tension spring, a compression spring mounted on the other side of the insert 34, or any combination of these springs.
- the mutually corresponding pivot stops 185 and 342 on the gripper arm 18 and on the insert 34 respectively limit the maximum pivoting angle of the gripping arm 18 in both directions.
- FIG. 12 illustrates a variant of a cable guide within one of the gripping arms 18.
- an additional channel 46 for cable management at least partially in vertical or obliquely downwardly inclined direction, as in FIG. 12 is indicated.
- the additional channel 46 has a curved course.
- the channel on the claw inside serves for anchoring and / or for the implementation of the rope, for example. When attaching the rope end in the stand.
- the channel on the outside of the claw serves to carry the rope.
- FIGS. 16 to 20 A possible course of the channel 46 and its arrangement with respect to the horizontal guide channel 28 is again on the basis of FIGS. 16 to 20 clarified.
- a portion of the channel wall may bulge out of the backside 182 of the gripper arm 18 as shown in FIG FIG. 12 is indicated.
- the gripper arm 18 according to the illustrated design is suitable for use in a variant of the tree stand 10, in which the clamping device 32 is approximately aligned with the gripping arm 18, which has the double cable guide.
- FIGS. 13 to 15 An alternative variant of the gripping arm 18 is in the FIGS. 13 to 15 shown.
- the additional channel 46 here has a uniformly curved and symmetrical to the pitch longitudinal plane of the gripping arm 18 course.
- This variant of the gripping arm 18 is suitable, for example, for use in a tree stand 10, as in the FIG. 2 is shown.
- the deflection 124 is arranged for the pull cable 30 adjacent to one of the gripper arms 18, so that the clamping device 32 is positioned next to the gripping arm 18.
- the traction cable 30 extends here between the tensioning device 32, the deflection 124, the curved channel 46 of the deflection 124 closest to the gripping arm 18 and the horizontal guide channels 28 of the remaining gripper arms 18, as shown in FIG FIG. 2 is shown.
- the free end of the traction cable 30 is anchored in the gripping arm 18, which is arranged next to the deflection 124.
- This gripper arm 18 thus has a double cable guide.
- FIG. 12 The schematic representations of Figures 12 and 16 to 20 each illustrate the curved course of the channel 46, which on the narrow side of the gripper arm 18 in the horizontal direction and in the direction of the pivot axis 20 in a vertical or inclined obliquely downward direction.
- the horizontal guide channel 28 may be formed continuously from one narrow side to the other, so that the channel 46 branches off from the guide 28 ( FIG. 12 ).
- the guide 28 in the gripper arm 18 which is provided with the additional channel 46 may also be designed as a blind hole, since this section of the guide 28 serves to anchor a free end of the traction cable 30, which is locked in the gripping arm 18 (FIG. FIGS. 16 to 18 ).
- FIGS. 16 to 18 illustrate an embodiment of the gripper arm 18, in which the horizontal guide channel 28 has a slot-like opening 48, which can serve, for example, for locking the free end of the traction cable 30.
- the opening 48 can, for example, a suitably slotted ring (not shown) are inserted, with the aid of the pull cable 30 can be fixed in the gripping arm 18.
- the FIG. 18 illustrates the trained as a blind hole guide channel 28 of the gripping arm 18, which thus does not extend from one narrow side to the other, but only to a narrow side is open.
- To the opposite narrow side of the curved channel 46 opens, which does not cross in this variant with the guide channel 28 or cuts.
- channel 46 which extends from a narrow side of the gripper arm 18 in a curved course vertically downwards and can open in a rear side arranged in the gripping arm 18 opening 461, which serves to carry the pull cable 30 to anchor this in the stand or to be suspended in the tensioning device.
- FIG. 19 also illustrates the course of another channel 462, the first of the upper side of the gripper arm 18 describes a downwardly curved course and finally opens in a vertical section on the inside of the gripper arm 18. This vertical section is used for hooking and countering a free rope end of the pull rope, which thus can be clamped there.
- the rear opening 461 for taking out the other end of the rope, which is guided to the tensioning device is dashed in FIG. 19 and in a solid line in FIG. 20 located.
- the course of the pull cable 30 shown makes possible a countersunk and almost invisible arrangement of the pull cable 30 in the area between the deflection within the gripper arm and the tensioning device arranged closest to the clamping device.
- FIGS. 21 and 22 illustrate another alternative variant of the gripper arm 18, which may have a plurality of tips 26 at its free end 24.
- the juxtaposed tips 26 can provide an even more reliable anchoring of a rod-shaped object or tree, since it can also slip and yet be held securely.
- FIGS. 23 to 26 Other variants of gripping arms 18 are based on FIGS. 23 to 26 clarified.
- the show FIGS. 23 and 24 each having a gripping arm 18, the example.
- injection-molded plastic o. The like. May exist, and having the molded at the free end 24 tips 261.
- the molded-in tips 261 each have an approximately cylindrical, but preferably slightly conical portion and a conical, more or less rounded, pointed portion which protrudes from the gripping arm 18 at the free end 24 and ensures a better fixation of the object to be anchored.
- the molded-in tips 261 may consist in particular of metal, for example of stainless steel or brass or the like, so that not only a better fixation of the object to be anchored can be ensured thereby.
- the molded-in tips 261 made of metal provide an advantageous appearance, which suggests the user a high quality and solidity.
- the molded-in tips 261 can claw in a tree to be anchored in an advantageous manner in the bark and thus ensure a secure anchorage even at relatively low clamping forces.
- two, three or more similar or slightly different from each other in shape or size molded tips 261 may be disposed at the free end 24 of the gripping arm 18.
- FIG. 25 and 26 show an alternative embodiment of a gripping arm 18 with a molded metal or plastic insert 262 having two, three or more outwardly facing tips 263, which dig into the outer circumferential surface of the object to be anchored as soon as the gripping arms 18 by means of the tension cable 30 braced against each other become.
- FIG. 26 clarifies one possible embodiment of the insert 262 before its installation and its arrangement in the installed state, as well as in FIG. 25 is shown.
- the tips 263 of the molded insert 262 made of metal provide an advantageous appearance, which suggests a high value and solidity to the user.
- the outwardly projecting tips 263 can claw in a tree to be anchored in an advantageous manner in the bark and thus ensure a secure anchorage even at relatively low clamping forces.
- the insert 262 may have two, three, or more like or slightly divergent tips 263 in shape or size.
- FIGS. 27 to 29 show a sleeve 301, which can serve to counter a free cable end 302 in a gripping arm 18.
- the sleeve 301 has an annular shoulder 303 and a slightly tapered shank 304.
- a longitudinal slot 305 extends over the entire length of the sleeve 301.
- the longitudinal slot 305 opens into a central passage 306, in which the pull cable 30 comes to rest.
- the passageway 306 is widened in diameter in the area of the shoulder 303 so that a nipple 307 fastened to the cable end 302 can fit into it, as shown in FIG FIG. 29 is clarified.
- FIGS. 26 to 28 show a possible embodiment of a water level indicator 142 (see. FIGS. 1 and 2 ), which is formed from a hollow cylindrical and closed at the upper end 143 143 float body.
- the elongated float body 144 can be displaced in the vertical direction in a corresponding receptacle on the edge of the receiving region 14 (cf. FIG. 30 ).
- the volume of air trapped within the float body 144 which is open at the bottom, provides buoyancy as soon as the receiving area 14 is filled with water.
- a flattening 145 on the outer circumference of the float body 144 forms an anti-rotation device with the correspondingly shaped receptacle.
- the vertical stroke of the float body 144 is limited by a stop web 146, which in a slot-like opening directed towards the receiving area 147 (see. FIGS. 1 to 4 and FIG. 30 ) is movable up and down.
- the opening 147 simultaneously forms an open connection for receiving the water level indicator 142, which thus together with the water level in Pick-up area 14 moves up or down.
- the reservoir in which the water level indicator 142 moves, however, is closed to the outside, so that no water can escape.
- the float body 144 may also have a closed volume, which, however, must have a lower density than water so that the float body 144 floats on the water.
- the float body 144 may, for example, consist of a suitable plastic, for example. Foamed polyurethane.
- the float body 144 may optionally have on its outer circumferential surface varying colors or markings, which are arranged, for example, halfway up and thus facilitate the exact reading of the respective water level.
- FIGS. 1 and 2 An additional leakage protection for emerging from the receiving area 14 water can be found on the basis of FIGS. 1 and 2 be clarified.
- the inner area of the upper side 121 of the tree stand 10 is recessed, so that the water first collects in this trough-like area 148 before it passes over the edge and can moisten the floor , In the case of wooden floors, an unnoticed overflow of the water reservoir in the tree stand 10 could otherwise lead to water damage.
- the filling with water is typically carried out by first filling so much water in the receiving area 14 until the water level indicator 142 responds. Subsequently, water can be replenished until the upper flooding surface of the trough-like region 148 is flooded.
- the trough-like region 148 which surrounds the receiving region 14 at the upper edge 141, may optionally have a round or otherwise shaped diameter, which must be significantly larger than the diameter of the receiving region 14 in order to fulfill its intended function.
- the trough-like region 148 can also accommodate the outer contour of the tree stand 10 and be designed star-shaped, wherein preferably a parallel structure to the outer contour of the tree stand 10 is formed, as shown in the figures.
- the opening 130 is arranged to the base region 12 above the upper edge of the trough-like region 148. In this way, can be largely prevented that inadvertent filling with water can lead to an uncontrolled and unnoticed overflow and leakage of water down, which may possibly lead to damage to the soil, for example, in a wooden floorboards or parquet.
- a similar variant with an increased cable outlet 129 with an opening 130 for the pull rope arranged above the trough-like region 148 is also in the Figures 48 and 49 shown.
- the cable exit 129 does not open here horizontally or flatly inclined, but approximately vertically. Due to the outwardly rounded opening 130, however, the traction cable 30 can slide along the edge of the opening 130 without significant friction, so that the opening 130 simultaneously acts as a deflection for the traction cable 30.
- FIGS. 29 to 44 show possible embodiments of a clamping device 32, the tension of the hauling rope 30 and thus for firmly clamping a tree to be fixed by means of the pivoted in the direction of the central axis of the tree stand support members 16 (FIGS. FIGS. 1 to 4 ) serves.
- the show FIGS. 29 to 32 different views of a first variant of the clamping device 32, in which the ratchet device 323 is formed from the pivotally mounted and provided with a gear 324 foot lever 321 and the movable latch lever 325.
- the foot lever 321 is mounted in a frame 326 which is formed by two plate cheeks connected to the mounting plate 322.
- the foot lever 321 is mounted on a shaft 327, the extension of which is designed as a cable drum 328, on which the tension cable 30 is wound upon actuation of the tensioning device 32.
- a short piece of the traction cable 30 through the receptacle 124 FIGS. 1 to 4 ) is guided in the top of the base portion 12.
- the gear 324 is further rotatably mounted, which is normally in engagement with the foot lever 321 via the pawl lever 325 (see. Figure 42 ). If the foot lever 321 is tensioned in the direction of the arrow, then the latch lever 325 engaging in one of the tooth flanks of the toothed wheel 324 (see FIG. Figure 38 ) for a force transmission of the lever movement to a corresponding shaft rotation, whereby the pull cable 30 is wound onto the cable drum 328. A return movement of the lever 321 is easily possible due to the much flatter in this direction tooth flanks, whereby the Ratschweff is achieved.
- This provides an overload protection for the entire system, which can protect the clamping system, the clamping claws and the shell construction from overloads and possible fractures. Due to the achieved limitation of the total forces occurring, the required wall thickness of the stand can be reduced. Overall, the cost of materials can be reduced or different materials can be used. Also, the manufacturing and material costs for the tree stand can be reduced.
- the maximum swing angle of the foot lever 321 is limited in both directions.
- a lock 330 can be released, whereby the power transmission from the lever 321 is lifted onto the shaft 327.
- the traction cable 30 is unwound from the rope drum 328 by the gripping arms 18 moving back into their relaxed starting position.
- FIG. 44 shows an alternative embodiment of the clamping device 32, which has a modified ratchet device 323.
- the pull cable 30 is wound in the same way on a cable drum 328 connected to a shaft 327.
- the shaft 327 is mounted in the frame 326 which is connected to the mounting plate 322.
- the tensioning of the traction cable 30 takes place during pivoting of the lever 321 the tilting of the two resiliently mounted plates 331 against the circumference of a disc 332, which rotates with the shaft 327.
- the upper plate 331 mounted or clamped in the foot lever 321 serves to tension the pull cable 30 during the movement of the foot lever 321 downwards.
- a fixed stop 333 is provided, which leads to the lifting of the sheet 331, as soon as the foot lever 321 is pivoted upwards.
- the clamped in the frame 326 bottom plate 331 forms a backstop, which prevents the shaft 327 from turning back.
- the foot lever 321 itself is pulled in each case with a return spring 334 in its upper position, as soon as it is released after a clamping operation.
- FIG. 45 shows a further alternative embodiment of the clamping device 32, in which the lock 330 is actuated by a lever 335 which can be pivoted in two directions, which is arranged on the outside of the foot lever 321.
- the lever can be moved between two end positions marked “OPEN” and "SAFE". In the middle position, the foot lever 321 by pressing down the tension cable 30 stretch, since in this way the ratchet device 323 is actuated.
- the lever 335 can be moved into the secured end position "SAVE", so that unlocking is not possible even if the lever 321 is actuated unintentionally. Only by pivoting the lever 335 in the end position "OPEN" can the foot lever 321 provide by pivoting upwards for a solution of the ratchet device 323 and for a relaxation of the hawser 30.
- the operability of the lever 335 is the same as with firearms, so that the operating logic opens up directly and intuitively, without special considerations are necessary.
- FIG. 46 . 47 and 48 again show the modular design of the clamping device 32, which can be connected as a whole with the base portion 12 of the tree stand 10, for example. By screwing.
- FIG. 50 illustrates the structure of the tree stand 10, a series of struts between the outer housing flanks and the inner receiving portion 14 (see. FIGS. 1 to 4 ) having.
- These struts or stiffening ribs 125 serve to stabilize the structure and to support the forces when clamping a tree on the Holding elements 16 and on the restraints (insert 34, receptacle 36) act.
- the cavities 128 located between the stiffening ribs 125 can optionally be used for filling with ballast bodies (not shown) in order to give the tree stand 10 a greater weight and thus a better stability.
- FIG. 51 shows the tree stand 10 in a view from below with already mounted clamping device 32nd
- the base portion 12 of the tree stand 10 can be designed in an integrated design with the receiving area 14 and the receiving pockets 36 for stable anchoring of the holding elements 16.
- the tree stand 10 can be made very inexpensive thereby in one piece design.
- These parts can be made in a single operation of plastic, in particular by means of an injection molding.
- the holding elements 16, ie, the gripping arms 18 and their inserts 34 can be made of injection-molded plastic. If this is necessary for reasons of higher strength, then some of these parts may possibly be provided with a fiber reinforcement.
- each more or less stiffening ribs 125 make a radial connection between the receiving portion 14 and the outer wrapping wall or outer wall 131 of the base portion 12.
- the radial stiffening ribs 125 preferably each have a height that corresponds to the height of the base region 12. At their upper edge they are connected to the top of the base portion 12, so that a very rigid composite is formed.
- stiffening ribs 125 of in FIG. 52 each variant shown in a straight line from the outer edge of the receiving area 14 to the tips of the star-shaped base portion 12.
- additional stiffening ribs 125 are provided, which are each arranged centrally between the existing stiffening ribs 125 and each extending from the receiving area 14 to the inner edges between two adjacent teeth of the star-shaped outer wall 131 of the base portion 12.
- serpentine connecting ribs 132 are provided which establish a stiffening connection between respectively adjacent stiffening ribs 125.
- gittemetzartige connecting ribs 132 are provided, which are each arranged in a mesh-like manner between adjacent, radially arranged stiffening ribs 125.
- each two parallel connecting ribs 132 between each adjacent, radially outwardly facing stiffening ribs 125 are provided.
- the view of Figure 57 illustrates that the height of the connecting ribs 132 may be less than that of the radial stiffening ribs 125.
- FIG. 58 illustrates again an advantageous arrangement of stiffening ribs 125 and connecting ribs 132 which causes maximum stability and rigidity at very low weight of the base portion 12.
- the ribs 125, 132 allow the use of very small wall thicknesses without sacrificing stability.
- the desired stability of the tree stand 10 can be made by appropriate ballast weights (not shown), by filling the cavities of the base portion 12 with water, sand or other suitable materials, wherein in liquid or free-flowing ballast elements or materials a closed bottom (not shown) is necessary, for example, screwed to the base portion 12, glued or otherwise connected.
- the floor can be glued, welded, bolted, snapped or locked, pressed or riveted. Combinations of these types of attachment are possible.
- the bottom may have a central recess corresponding in size to the outer diameter of the receiving area 14 so that it can pass through the ground.
- FIGS. 59 to 62 show different embodiments of a centering system for the tree.
- the centering ring 52 accordingly FIG. 59 has a circumferential tire 521, on which a plurality of webs 522 are arranged, which serve to guide differently contoured tree trunks.
- the webs 522 indicate their upper narrow sides in each case an inwardly inclined chamfer 523, which serves to better guide a tree to be used.
- FIG. 60 shows a closed centering ring 54 having an inwardly inclined upper end face 541, which serves to guide the tree.
- the centering 56 in accordance with FIGS. 61 and 62 also serves to center and guide a tree to be fixed.
- the centering shell has a flat bottom 561 and three inclined side surfaces 562, which merge upward into a cylindrical contour 563.
- the centering rings 52, 54 and the centering 56 can be made in different dimensions and inserted as needed in the receiving area 14.
- centering arrangements shown in accordance with FIGS. 59 to 62 show only exemplary embodiments.
- a centering dome may be provided, which is preferably arranged centrally in the vertical direction at the bottom of the receiving area 14.
- several centering domes can be provided.
- FIG. 1 illustrates the apparently within a closed ring (or more closed rings in multiple wrap) between the gripping arms 18 and in their guides 28 extending traction cable 30, the course between this seemingly closed ring and the clamping device can be made almost invisible. Also, the fixation of the free end of the hawser in the provided with the curved channel gripper arm 18 supports this hidden installation of the hawser. Of course, even with an anchoring of the free end of the pull rope in the stand area whose course be hidden or hidden.
- the stand according to the invention can be made both without a separate floor and without separate ballast. However, it may also be provided a lower bottom plate, which is pressed, snapped, glued, screwed or welded.
- stiffening spine and / or connecting ribs may be filled with a potting compound in the stator according to the invention or be designed with ballast stones.
- ballast stones are glued to the stiffening ribs and / or the connecting ribs.
Landscapes
- Installation Of Indoor Wiring (AREA)
- Clamps And Clips (AREA)
- Supports For Plants (AREA)
Description
Die Erfindung betrifft einen Ständer zum Verankern eines stabförmigen Gegenstandes, insbesondere zum Verankern eines Baumes, mit einem Sockelbereich und mit einem darin angeordneten integrierten Aufnahmebereich für einen unteren Stammabschnitt eines zu verankernden Baumes oder anderen stabförmigen Körpers, bspw. eines Fahnenmastes o. dgl.The invention relates to a stand for anchoring a rod-shaped object, in particular for anchoring a tree, with a base region and with an integrated receiving region arranged therein for a lower trunk portion of a tree or other rod-shaped body to be anchored, for example a flagpole or the like.
Baumständer zum standsicheren Verankern von Bäumen, insbesondere von Christ- bzw. Weihnachtsbäumen, sind in unterschiedlichen Ausführungen bekannt. Einfachere Varianten weisen eine Bodenplatte sowie einen damit verbundenen Aufnahmebereich auf, in den der untere Stammabschnitt des zu verankernden Baumes eingeschoben und mittels drei oder vier Knebelschrauben verklemmt werden kann. Zur sicheren Verankerung des Baumes müssen die Knebelschrauben mit erheblichem Kraftaufwand festgezogen werden.Tree stands for the stable anchoring of trees, especially of Christmas or Christmas trees, are known in different designs. Simpler variants have a bottom plate and an associated receiving area, in which the lower trunk portion of the tree to be anchored inserted and clamped by means of three or four thumbscrews. For secure anchoring of the tree, the toggle screws must be tightened with considerable force.
Daneben sind Baumständer bekannt, die mit einer Zugvorrichtung versehen sind, mittels derer eine Reihe von schwenkbaren Haltelementen gegen den Stammabschnitt des Baums gepresst werden können, so dass dieser standsicher verankert ist. Diese Zugvorrichtungen weisen typischerweise einen Spannhebel mit einer Ratsch- und Feststellvorrichtung.auf, der normalerweise mittels einer Fußkraft betätigt werden kann. Die Feststellvorrichtung weist typischerweise eine Verriegelungseinrichtung auf, die zum schnellen Lösen des Baumes geöffnet werden kann.In addition, tree stands are known, which are provided with a pulling device, by means of which a series of pivotable holding elements can be pressed against the stem portion of the tree, so that it is anchored stable. These traction devices typically include a tensioning lever with a ratcheting and locking device which can normally be operated by foot power. The locking device typically has a locking device that can be opened for quick release of the tree.
Christbaumständer mit Seilzug und schwenkbeweglich gelagerten Schwenkhebeln, bei denen ein Christbaum mit Krallen festgehalten wird, die mit einem Seil zusammengezogen werden, sind bspw. aus der
Ein schwenkbares Halteelement mit einer Rückstellfeder, das Teil eines Christbaumständers ist, ist weiterhin aus der
Ein Nachteil vieler bekannter Systeme ist die relativ aufwändige Herstellung des Baumständers sowie die mangelnde Auslaufsicherheit von Wasser.A disadvantage of many known systems is the relatively complex production of the tree stand and the lack of leakage safety of water.
Ein Ziel der vorliegenden Erfindung besteht darin, einen Baumständer zur Verfügung zu stellen, der eine einfach und kostengünstig herstellbare Gestaltung aufweist und der zudem eine einfache Handhabung ermöglicht.An object of the present invention is to provide a tree stand which has a simple and inexpensive to produce design and also allows easy handling.
Dieses Ziel der Erfindung wird mit dem Gegenstand der unabhängigen Ansprüche erreicht. Merkmale vorteilhafter Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen.This object of the invention is achieved with the subject matter of the independent claims. Features of advantageous developments of the invention will become apparent from the dependent claims.
Ein erfindungsgemäßer Ständer zum standsicheren Verankern eines stabförmigen Gegenstandes, insbesondere eines Baumes, Christbaumes o. dgl., umfasst einen Sockelbereich und einen darin angeordneten Aufnahmebereich für einen unteren Abschnitt des zu verankernden Gegenstandes. Der Ständer weist wenigstens drei konzentrisch um den Aufnahmebereich angeordnete, jeweils um eine horizontale Achse in einer senkrecht zur Längsachse des stabförmigen Gegenstandes bzw. Baumes angeordneten Ebene verschwenkbare Halteelemente auf, die vorzugsweise mittels eines einzigen, jeweils in den Halteelementen geführten Zugmittels, das mit einer Spannvorrichtung in Wirkverbindung steht, gegen den Umfang des stabförmigen Gegenstandes bzw. den Stammabschnitt des Baumes klemmbar sind. Ein Ende des Zugmittels kann in der Spannvorrichtung eingespannt sein, während das andere Ende in einem der Halteelemente oder im Baumständer fixiert bzw. gekontert sein kann. Das Zugmittel ist in Form einer Seilschlinge in den Halteelementen gelagert. Ein solcher Ständer weist den Vorteil einer sicheren und stabilen Verankerungsmöglichkeit eines zu verankernden Baumes auf, wobei nur sehr geringe Spannkräfte notwendig sind. Die relativ hohe Selbsthemmungskraft des den Baum nahezu um seinen gesamten Umfang oder ggf. auch mehrfach umschlingenden Zugmittels innerhalb der Führungen der Halteelemente sorgt zudem gegenüber den bekannten Baumständem für eine deutliche Verbesserung der Halteeigenschaften des erfindungsgemäßen Baumständers. Das in Form einer Lassoschlinge oder Seilschlinge (bzw. in Form eines Krawattenknotens) bzw. in mehreren Schlingen in den Halteelementen geführte und diese zusammen ziehende Zugmittel unterliegt relativ geringen Zugkräften, kann jedoch eine relativ große Haltekraft auf die Halteelemente ausüben. Diese relativ große Haltekraft ist eine passive Gegenhaltekraft, die ein Umfallen des Baumes verhindert. Diese Gegenhaltekraft bildet eine Blockierkraft gegen ein Verdrängen, Wegdrücken oder gemeinsames Verschieben der Haltekrallen. Die Anordnung des Zugmittels und der Halteelemente führt dazu, dass mittels einer relativ geringen erforderlichen Spannkraft sehr hohe Blockier-Haltekräfte erzielt werden.An inventive stand for the stable anchoring of a rod-shaped object, in particular a tree, Christmas tree o. The like., Includes a base portion and a receiving portion arranged therein for a lower portion of the object to be anchored. The stand has at least three holding elements which are arranged concentrically around the receiving region and are pivotable about a horizontal axis in a plane perpendicular to the longitudinal axis of the rod-shaped article or tree, preferably by means of a single traction element guided in each case in the holding elements is operatively connected, are clamped against the circumference of the rod-shaped object or the trunk portion of the tree. One end of the traction means can be clamped in the clamping device, while the other end can be fixed or countered in one of the holding elements or in the tree stand. The traction means is mounted in the form of a rope loop in the holding elements. Such a stand has the advantage of a secure and stable anchoring possibility of a tree to be anchored, with only very low clamping forces are necessary. The relatively high self-locking force of the tree almost around its entire circumference or possibly also several times looping traction means within the guides of the holding elements also provides over the known Baumständem for a significant improvement in the holding properties of the tree stand according to the invention. In the form of a lasso loop or rope loop (or in the form of a tie knot) or in several loops in the Guided holding elements and these pulling together pulling means is subject to relatively low tensile forces, but can exert a relatively large holding force on the holding elements. This relatively large holding force is a passive holding force that prevents the tree from falling over. This counter-holding force forms a blocking force against displacement, pushing away or joint displacement of the retaining claws. The arrangement of the traction means and the holding elements causes very high blocking holding forces to be achieved by means of a relatively small required clamping force.
Bei einem mehrfach um den Baum geschlungenen Zugmittel entsteht der zusätzliche Vorteil, dass die Spannkräfte aufgrund des Übersetzungsverhältnisses sehr klein werden, so dass der Baum auch von Kindern problemlos befestigt und verankert werden kann. Bei einem mehrfach um den Baum geschlungenen Zugmittel kann dieses jeweils in den gleichen Führungen der Halteelemente verlaufen. Alternativ können auch jeweils mehrere Führungen vorgesehen sein, in denen jeweils ein Abschnitt des Zugmittels geführt ist.In the case of a traction device that is looped around the tree several times, there is the additional advantage that due to the transmission ratio, the tensioning forces become very small, so that the tree can also be easily fastened and anchored by children. In a multiple times wrapped around the tree traction means this can each extend in the same guides of the holding elements. Alternatively, in each case a plurality of guides may be provided, in each of which a portion of the traction means is guided.
Mittels eines Versuchsaufbaus konnte die Überlegenheit dieses Spannsystems überprüft und nachgewiesen werden. Mit dem erfindungsgemäßen System kann bspw. ein Baum von drei Metern Höhe mittels eines Stahlseils von 0,4 Millimetern Durchmesser problemlos verankert und gegen ein Umfallen gesichert werden. Dem gegenüber sind bei bekannten Baumständem Stahlseile von ca. 3 mm Dicke notwendig, die den Nachteil einer sehr geringen Flexibilität aufweisen, so dass die Seilführung in den Halteelementen relativ steif wäre.By means of a test set-up the superiority of this clamping system could be checked and proven. With the system according to the invention, for example, a tree of three meters in height can be easily anchored by means of a steel cable of 0.4 millimeter diameter and secured against falling over. In contrast, in known Baumständem steel cables of about 3 mm thickness are necessary, which have the disadvantage of a very low flexibility, so that the cable guide would be relatively stiff in the holding elements.
Zur sicheren Verankerung eines Baumes sind wenigstens drei schwenkbare Halteelemente notwendig. Gegebenenfalls können auch vier oder fünf Halteelemente vorgesehen sein, die zweckmäßigerweise gleichmäßig über den Umfang des Aufnahmebereichs angeordnet sind. Das Zugmittel ist jeweils in Aufnahmen der wenigstens drei Halteelemente verschiebbar geführt. Vorzugsweise ist das Zugmittel jeweils in einer Aufnahme der wenigstens drei Halteelemente geführt, die zwischen einer Schwenkachse und einem oberen freien Ende des Halteelementes angeordnet ist. Auf diese Weise sind günstige Hebelverhältnisse gegeben, die mit relativ geringer Kraft eine gute Spannwirkung für den zu verankernden Baum erreichen lassen, ohne dass das Zugmittel unzulässig stark umgelenkt würde, was aufgrund der Führungseigenschaften von Seilen zu relativ hohen Reibungsverlusten und damit zu einer Erhöhung der notwendigen Spannkraft führen würde.For secure anchoring of a tree at least three pivotable retaining elements are necessary. Optionally, four or five holding elements may be provided, which are expediently arranged uniformly over the circumference of the receiving area. The traction means is displaceably guided in each case in receptacles of the at least three holding elements. Preferably, the traction means is guided in each case in a receptacle of the at least three holding elements, which is arranged between a pivot axis and an upper free end of the holding element. In this way, favorable leverage conditions are given, which can achieve a good clamping effect for the tree to be anchored with relatively little force, without the traction means would deflect inadmissible, which due to Leadership properties of ropes would lead to relatively high friction losses and thus to an increase in the necessary clamping force.
Gemäß einer Variante der Erfindung ist ein freies Ende des Zugmittels mit einem Anschlag gegen eine Führung eines der Halteelemente gekontert. Dieses Halteelement ist vorzugsweise das gleiche, in dem das Zugmittel von den Halteelementen zur Spanneinrichtung geleitet wird. Hierzu weist das Halteelement, in dem das freie Ende des Zugmittels gekontert ist, eine weitere Führung für das Zugmittel auf. Gemäß einer alternativen Ausgestaltung der Erfindung ist das freie Ende des Zugmittels im Baumständer selbst gekontert, bspw. in dessen Sockelbereich. Damit können grundsätzlich die gleichen Wirkungen und Effekte erzielt werden wie bei einem in einem Halteelemente gekonterten Zugmittelende.According to a variant of the invention, a free end of the traction means is countered with a stop against a guide of the holding elements. This holding element is preferably the same, in which the traction means is passed from the holding elements to the clamping device. For this purpose, the holding element, in which the free end of the traction means is countered, a further guide for the traction means. According to an alternative embodiment of the invention, the free end of the traction means is countered in the tree stand itself, for example. In the base area. In principle, the same effects and effects can be achieved as with a traction mechanism end countered in a holding element.
Die Führungen in den wenigstens drei Halteelementen sind jeweils horizontal angeordnet. Die weitere Führung für das Zugmittel kann horizontal angeordnet oder leicht geneigt angeordnet sein, so dass eine günstige Umlenkung des Zugmittels zwischen Spannvorrichtung und dem Halteelement ermöglicht ist. Wahlweise kann das Zugmittel auch einen gebogenen bzw. gekrümmten Verlauf aufweisen.The guides in the at least three holding elements are each arranged horizontally. The further guide for the traction means can be arranged horizontally or arranged slightly inclined, so that a favorable deflection of the traction means between the clamping device and the holding element is made possible. Optionally, the traction means may also have a curved or curved course.
Zwischen Spannvorrichtung und Aufnahmebereicht kann eine weitere Führung für das Zugmittel vorgesehen sein, welche für eine günstige Umlenkung und des Zugmittels sorgt.Between the tensioning device and the receiving area, a further guide for the traction means can be provided, which ensures a favorable deflection and the traction means.
Das Zugmittel verläuft vorzugsweise, in dieser Reihenfolge, zwischen der Spannvorrichtung, der Führung im Aufnahmebereich, der weiteren Führung im ersten Halteelement und der horizontalen Führung in den weiteren Halteelementen. Als Zugmittel kommt insbesondere ein Seil, beispielsweise ein Stahldrahtseil oder ein Kunststoffseil o. dgl. in Frage. Das Zugmittel braucht nicht unbedingt für sehr hohe Zugbelastungen ausgelegt sein, da die Spannkräfte des erfindungsgemäßen Ständers sehr viel geringer sind als bei den bekannten Baumständem. Daher kann das Zugmittel auch ein relativ einfaches Kunststoffseil sein, das bspw. aus einem Kunststoff wie Polyamid, Nylon o. dgl. bestehen kann.The traction means preferably runs, in this order, between the tensioning device, the guide in the receiving area, the further guide in the first holding element and the horizontal guide in the further holding elements. As a pulling means in particular a rope, such as a steel wire rope or a plastic rope o. The like. In question. The traction means need not necessarily be designed for very high tensile loads, since the clamping forces of the stator according to the invention are much lower than in the known Baumständem. Therefore, the traction means may also be a relatively simple plastic rope, for example, from a plastic such as polyamide, nylon o. The like. May exist.
Eine bevorzugte Ausgestaltung der Erfindung sieht vor, dass am Boden des Aufnahmebereichs eine Fixiereinrichtung für den unteren Stammabschnitt angeordnet ist. Diese Fixiereinrichtung, die mit einer unteren Stirnseite des Stammabschnitts zusammenwirken kann, kann beispielsweise ein Zentrier- oder Haltedorn sein. Wahlweise kann die Fixiereinrichtung auch ein Ring, eine Aufnahmemulde oder eine andere geeignete Einrichtung sein, welche die untere Stirnseite des zu verankernden Baumes gegen Verrutschen sichert.A preferred embodiment of the invention provides that a fixing device for the lower trunk section is arranged at the bottom of the receiving area. This fixing device, which with a lower end face of the trunk portion can interact, for example, be a centering or holding mandrel. Optionally, the fixing device may also be a ring, a receiving trough or another suitable device which secures the lower end face of the tree to be anchored against slipping.
Die Halteelemente sind vorzugsweise jeweils als schwenkbare Halteklauen oder dergleichen ausgebildet. Den Halteelementen kann jeweils eine Federspanneinrichtung zugeordnet sein, welche die Halteelemente bei unbelastetem Zugmittel vom Baum wegschwenkt. Die Federspanneinrichtung kann jeweils dafür sorgen, dass bei gelöster Spanneinrichtung der Baum freigegeben wird. An den freien Enden der Halteklauen kann jeweils ein Metalleinsatz mit mehreren Spitzen bzw. einzelne Spitzen eingeformt sein, wodurch ein stabileres Verankern eines Baumes mit geringeren Halte- bzw. Spannkräften ermöglicht ist.The holding elements are preferably designed in each case as pivotable holding claws or the like. The holding elements may each be associated with a spring tensioning device, which pivots the holding elements with unloaded traction means from the tree. The spring tensioning device can in each case ensure that when the tensioning device is released the tree is released. At the free ends of the retaining claws in each case a metal insert with a plurality of tips or individual tips may be formed, whereby a more stable anchoring of a tree with lower holding or clamping forces is possible.
Der Aufnahmebereich kann insbesondere als topfartige Behälter ausgebildet sein, der seitlich und zum Boden hin geschlossen ist, so dass beispielsweise eine Wasserfüllung bis an einen oberen Rand des Aufnahmebereichs möglich ist, ohne dass das Wasser seitlich herausläuft.The receiving area may in particular be designed as a cup-shaped container, which is closed laterally and towards the bottom, so that, for example, a water filling up to an upper edge of the receiving area is possible without the water running out laterally.
Die Erfindung sieht eine einstückige Ausbildung des topfartigen Aufnahmebereichs für den Baum mit dem Sockelbereich vor, die bspw. mittels eines Spritzgussverfahrens herstellbar ist. Innerhalb des Sockelbereichs können Versteifungsrippen vorgesehen sein, die eine sehr leichte und gleichzeitig stabile Ausführungsform ermöglichen. Bereits bei relativ geringen Wandstärken des aus Kunststoff herstellbaren Baumständers bzw. Sockelbereichs ist eine hohe Stabilität und Biegesteifigkeit gewährleistet.The invention provides for a one-piece design of the pot-like receiving area for the tree with the base area, which can be produced, for example, by means of an injection molding process. Within the base region stiffening ribs can be provided, which allow a very light and at the same time stable embodiment. Even with relatively small wall thicknesses of the plastic stand or pedestal area that can be produced, a high level of stability and flexural rigidity is ensured.
Die Führung im Aufnahmebereich für das Zugmittel ist vorzugsweise an der oberen Kante des Aufnahmebereichs angeordnet. Die Schwenklagerungen für die Halteelemente sind vorzugsweise jeweils an den oberen Randkanten des Aufnahmebereichs angeordnet.The guide in the receiving area for the traction means is preferably arranged on the upper edge of the receiving area. The pivot bearings for the retaining elements are preferably arranged in each case at the upper peripheral edges of the receiving area.
Die Halteelemente, der topfartige Behälter des Aufnahmebereichs und eine äußere Gehäusehülle bzw. der Sockelbereich können wahlweise aus Kunststoff oder aus Metall gefertigt sein. Wahlweise können der Behälter und die äußere Gehäusehülle und/oder der Sockelbereich auch als Glas, Keramik, Ton, Holz oder Beton gefertigt sein.The holding elements, the cup-shaped container of the receiving area and an outer housing shell or the base area can optionally be made of plastic or metal. Optionally, the container and the outer Housing shell and / or the base area also be made as glass, ceramic, clay, wood or concrete.
Der Sockelbereich kann ggf. mit einem oder mehreren Ballaststücken versehen sein, welche die Standsicherheit des Baumständers verbessern. Diese Ballaststücke können ggf. in den Sockelbereich integriert sein, was bspw. mittels des Spritzgussverfahrens erfolgen kann. Sie können jedoch auch nachträglich angebracht werden, bspw. durch Anschrauben oder kleben von unten. Zwischen Boden, Gehäusehülle und Aufnahmebehälter können eine oder mehrere Ballasteinrichtungen angeordnet sein, beispielsweise in Form von Betongewichten oder dergleichen. Auch ein Ausgießen von Verrippungen mit unterschiedlichen Vergussmassen ist möglich.The base area may optionally be provided with one or more ballast pieces, which improve the stability of the tree stand. If necessary, these ballast pieces can be integrated into the base area, which can be done, for example, by means of the injection molding process. However, they can also be retrofitted, for example by screwing or gluing from below. One or more ballast devices can be arranged between the base, the housing shell and the receptacle, for example in the form of concrete weights or the like. It is also possible to pour ribs with different casting compounds.
Weiterhin weist die Spannvorrichtung vorzugsweise eine Ratschenfunktion mit Löseeinrichtung auf, so dass eine einfache Befestigung des Baums ermöglicht ist und dass diese Spanneinrichtung problemlos wieder gelöst werden kann.Furthermore, the clamping device preferably has a ratchet function with release device, so that a simple attachment of the tree is possible and that this clamping device can be easily solved again.
Der besondere Vorteil des erfindungsgemäßen Ständers liegt in der sehr einfachen Handhabung und im sehr einfachen Aufbau. Das einzige Zugmittel, insbesondere ein Zugseil aus Stahldraht oder Kunststoff o. dgl., umschlingt den Baum in einem Winkel von mindestens 300 bzw. von ungefähr 360 Grad. Wahlweise kann das Zugmittel den Baum auch mehrfach, d.h. über einen Umschlingungswinkel von bspw. 720 Grad oder mehr umschlingen. Hierbei treten lediglich lokal begrenzte Kräfte auf, die zu keinen nennenswerten Materialbelastungen oder Verwindungserscheinungen im Ständerbereich und/oder bei den Halteelementen bzw. deren Verankerung im Sockelbereich des Ständers führen. Die größten Seilkräfte wirken zwischen der Spannvorrichtung und dem dieser am nächsten angeordneten Greifarm, in dem auch das Zugmittel geführt ist. Für die technische Funktion des Baumständers reicht es somit aus, wenn nur dieser relativ kleine Bereich ausreichend stabil ausgeführt ist.The particular advantage of the stator according to the invention lies in the very simple handling and in a very simple structure. The only traction means, in particular a traction cable made of steel wire or plastic or the like, wraps around the tree at an angle of at least 300 or approximately 360 degrees. Optionally, the traction means may also multiply, i. wrap around a wrap angle of, for example, 720 degrees or more. In this case, only locally limited forces occur, which do not lead to any appreciable material loads or twisting phenomena in the upright area and / or in the case of the holding elements or their anchoring in the base region of the upright. The largest rope forces act between the tensioning device and the next this arranged gripping arm, in which the traction means is guided. For the technical function of the tree stand, it is thus sufficient if only this relatively small area is sufficiently stable.
Die reduzierten Festigkeitsanforderungen ermöglichen eine schwächer dimensionierte Spannvorrichtung als bei den bekannten Baumständem. Auch die Ständerkonstruktion kann hinsichtlich der Materialeigenschaften sowie hinsichtlich des Fertigungsaufwandes sparsamer und einfacher ausgeführt sein als bekannte Konstruktionen.The reduced strength requirements allow a weaker dimensioned clamping device than in the known Baumständem. The stator construction can also be made more economical and simpler in terms of material properties and manufacturing outlay than known constructions.
Der große Umschlingungswinkel bzw. die Mehrfachumschlingungen führen zu einer relativ geringen Seilkraft, so dass die Spannvorrichtung mit deutlich weniger Kraftaufwand betätigt werden kann. Gleichzeitig wird damit jedoch eine große Blockierkraft für den Baum erzeugt. Dennoch kann die Bauteilstabilität ohne Probleme reduziert werden, was eine kostengünstigere Fertigung ermöglicht. Das Seilspannsystem funktioniert wahlweise auch ohne Verzahnung. Anstatt eines stabilen Stahlseils kann problemlos auch ein leichteres und kostengünstigeres Kunststoffseil verwendet werden. Die Spannvorrichtung weist wegen der Übersetzung eine deutlich bessere Dosierbarkeit auf. Wird ein Stahlseil verwendet, so kann dieses einen sehr geringen Durchmesser von weniger als 1 mm aufweisen.The large wrap angle or the multiple convolutions lead to a relatively low cable force, so that the clamping device can be operated with significantly less effort. At the same time, however, it creates a great blocking power for the tree. Nevertheless, the component stability can be reduced without problems, which allows a more cost-effective production. The rope tensioning system works optionally without toothing. Instead of a stable steel cable, a lighter and less expensive plastic cable can be used without any problem. The jig has because of the translation on a much better dosing. If a steel cable is used, it may have a very small diameter of less than 1 mm.
Die Klemmkraft wirkt im Wesentlichen innerhalb der Seilschlinge des Zugmittels, während bei den bisher bekannten Baumständem das gesamte Krallensystem auf eine Seite des Baumständers gezogen wird, wobei der Ständer erheblichen Kräften und Verformungen ausgesetzt ist.The clamping force acts essentially within the cable loop of the traction device, while in the previously known Baumständem the entire claw system is pulled to one side of the tree stand, wherein the stand is exposed to considerable forces and deformations.
Der große Umschlingungswinkel führt zu Reibungseffekten zwischen den Seilführungen und dem Zugmittel, so dass die Seilkraft an dem in einem Spannelement verankerten Seilende wesentlich reduziert ist. Dadurch kann das freie Seilende wesentlich einfacher befestigt und gekontert werden, bspw. durch einfaches Einhaken in der Kralle. Hierzu muss diese nicht unbedingt verstärkt werden, sondern kann komplett aus Kunststoff gefertigt werden. Die Selbsthemmung des Seils führt zu einer sicheren Verankerung des Baumes im Ständer, wobei gleichzeitig die Seilkräfte signifikant reduziert sind. Ein Verschieben oder Wandern der gesamten Spanneinheit wird sehr wirksam verhindert. D.h., die Haltekrallen werden besser blockiert bzw. gegen ein Verschieben gesichert.The large wrap angle leads to frictional effects between the cable guides and the traction means, so that the cable force is substantially reduced at the rope end anchored in a tensioning element. As a result, the free end of the rope can be secured and countered much easier, for example by simply hooking in the claw. This does not necessarily have to be reinforced, but can be made entirely of plastic. The self-locking of the rope leads to a secure anchoring of the tree in the stand, at the same time the rope forces are significantly reduced. Moving or moving the entire clamping unit is very effectively prevented. That is, the retaining claws are better blocked or secured against displacement.
Ein weiterer Vorteil, der aus der beschriebenen Spanntechnik mit nur einem Zugseil resultiert, ist die Möglichkeit der einschaligen bzw. einstückigen Bauweise des Sockels und des Innenteils sowie die Möglichkeit, den Aufnahmebereich als nach unten sowie zu allen Seiten geschlossene Schale auszubilden. Die einstückige Bauweise des Baumständers ermöglicht eine besonders kostengünstige Herstellbarkeit, bspw. mittels eines Spritzgussverfahrens. In gleicher Weise können die Spannelemente sowie deren Halterungen jeweils einstückig aus Kunststoffspritzguss hergestellt werden. Der gesamte Bauständer kann somit modular aufgebaut sein und innerhalb kurzer Zeit montiert werden, ohne dass hierzu Spezialwerkzeuge notwendig sind. Soll für den Baumständer kein Kunststoff verwendet werden, so kann die Schale problemlos auch aus Glas, Keramik, Ton, Holz, Beton oder Metall oder einem anderen geeigneten Werkstoff hergestellt werden.Another advantage resulting from the clamping technique described with only one pull rope, is the possibility of single-shell or one-piece design of the base and the inner part and the ability to form the receiving area as down and closed on all sides shell. The one-piece design of the tree stand allows a particularly cost-effective manufacturability, for example. By means of an injection molding process. In the same way, the clamping elements and their brackets can be made in one piece from plastic injection molding. The entire building stand can thus be modular and be mounted within a short time, without the need special tools are necessary. If no plastic is to be used for the tree stand, so the shell can be easily made of glass, ceramic, clay, wood, concrete or metal or other suitable material.
Die einstückige Bauweise hat den zusätzlichen Vorteil, dass sich der Sockelbereich in weiten Grenzen frei gestalten lässt. Der Sockelbereich kann bspw. eine sternförmige Kontur aufweisen, die für einen Christbaumständer besonders vorteilhaft ist. Die Ecken dieses sternförmigen Grundrisses können zusätzlich zur Verbesserung der Standfestigkeit des Ständers dienen, so dass dessen Gesamtvolumen geringer ist als ein topfförmiger Ständer, der die gleiche Standfestigkeit und Stabilität aufweist.The one-piece construction has the additional advantage that the base area can be freely designed within wide limits. The base region may, for example, have a star-shaped contour, which is particularly advantageous for a Christmas tree stand. The corners of this star-shaped floor plan can additionally serve to improve the stability of the stand, so that its total volume is less than a cup-shaped stand, which has the same stability and stability.
Die Erfindung wird nachfolgend anhand bevorzugter Ausführungsbeispiele unter Bezugnahme auf die beiliegenden Zeichnungen näher erläutert. Dabei zeigt:
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Figur 1 eine perspektivische Schemadarstellung einer ersten Variante eines erfindungsgemäßen Baumständers, -
eine perspektivische Schemadarstellung einer zweiten Variante des erfindungsgemäßen Baumständers,Figur 2 -
Figur 3 eine schematische Schnittdarstellung des Baumständers ohne Zugmittel und Spannvorrichtung, -
Figur 4 eine Schnittdarstellung des Baumständers mit zugehöriger Spannvorrichtung, -
Figur 5 eine Variante eines Halteelements des erfindungsgemäßen Baumständers in perspektivischer Darstellung, -
Figuren 6 bis 9 einen Lagerbock zur schwenkbaren Lagerung eines Halteelements gemäßFigur 5 , -
eine weitere Variante des Lagerbocks mit zugehörigem Halteelement,Figur 10 -
Figur 11 eine weitere Variante des Lagerbocks mit zugehörigem Halteelement, -
verschiedene Ausführungsformen und Ansichten des Halteelements,Figuren 12bis 26 -
Figuren 27 verschiedene Ansichten einer Hülse zur Fixierung eines Seilendes des Zugmittels,bis 29 -
verschiedene Ansichten eines Wasserstandsanzeigers,Figuren 30 bis 33 -
Varianten einer bevorzugten Seilführung,Figuren 34bis 37 -
verschiedene Ausführungsformen und Ansichten einer Spannvorrichtung zur Spannung des Zugmittels,Figuren 38bis 49 -
Figur 50 eine perspektivische Querschnittdarstellung des Ständers, -
eine Ansicht des Ständers von unten,Figur 51 -
verschiedene Varianten des Ständers in Ansichten von unten,Figuren 52 bis 58 -
eine erste Variante eines Zentrierrings zur Fixierung eines unteren Endes eines einzuspannenden Baumes oder Gegenstandes,Figur 59 -
Figur 60 eine alternative Variante eines Zentrierrings und -
Figuren 61 und 62 eine weitere alternative Variante eines Zentrierrings.
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FIG. 1 a perspective schematic view of a first variant of a tree stand according to the invention, -
FIG. 2 a perspective schematic view of a second variant of the tree stand according to the invention, -
FIG. 3 a schematic sectional view of the tree stand without traction means and tensioning device, -
FIG. 4 a sectional view of the tree stand with associated clamping device, -
FIG. 5 a variant of a holding element of the tree stand according to the invention in a perspective view, -
FIGS. 6 to 9 a bearing block for the pivotable mounting of a retaining element according toFIG. 5 . -
FIG. 10 a further variant of the bearing block with associated holding element, -
FIG. 11 a further variant of the bearing block with associated holding element, -
FIGS. 12 to 26 various embodiments and views of the retaining element, -
FIGS. 27 to 29 various views of a sleeve for fixing a cable end of the traction device, -
FIGS. 30 to 33 different views of a water level indicator, -
FIGS. 34 to 37 Variants of a preferred cable guide, -
Figures 38 to 49 various embodiments and views of a tensioning device for tensioning the traction device, -
FIG. 50 a perspective cross-sectional view of the stand, -
FIG. 51 a view of the stand from below, -
FIGS. 52 to 58 different variants of the stand in views from below, -
FIG. 59 a first variant of a centering ring for fixing a lower end of a tree or object to be clamped, -
FIG. 60 an alternative variant of a centering ring and -
FIGS. 61 and 62 another alternative variant of a centering ring.
Die schematische Perspektivdarstellung der
An einem oberen umlaufenden Rand 141 des Aufnahmebereichs 14 sind vier Halteelemente 16 in Form von klauenartigen, schwenkbaren Greifarmen 18 angeordnet, mit deren Hilfe ein zu verankernder Baum fest im Baumständer 10 eingespannt werden kann. Die Greifarme 18 sind jeweils um eine horizontale Schwenkachse 20 schwenkbar, die in etwa tangential am oberen zylindrischen Rand 141 des Aufnahmebereichs 14 angeordnet sind. Die Greifarme 18 sind jeweils in einer Ebene verschwenkbar, die senkrecht zu den Schwenkachsen 20 und parallel zu einer Längsachse eines Baumes angeordnet sind. Die Schwenkebenen der vier Greifarme 18 treffen sich jeweils im Zentrum einer gedachten Mittelachse durch den Aufnahmebereich 14. Diese gedachte Mittelachse kann bei optimal zentriertem Baum mit dessen Längsmittelachse übereinstimmen.At an upper
Die Greifarme 18 weisen im gezeigten Ausführungsbeispiel jeweils an ihren freien Enden 24 eine Spitze 26 auf, die bei gegen den Baum drückenden Greifarmen 18 in den Stamm des Baumes eindringen und sich dort fest verkrallen kann. Gegebenenfalls können anstelle nur einer Spitze 26 auch gezackte Konturen (vgl.
Die vier schwenkbaren Greifarme 18 weisen in einem Bereich etwas oberhalb ihrer Mitte jeweils einen in etwa horizontal verlaufenden Führungskanal 28 für ein Zugseil 30 auf, das mit einer Spannvorrichtung 32 unter Spannung gesetzt und eingeholt werden kann. Im gezeigten Ausführungsbeispiel kann die Spannvorrichtung 32 bspw. mit einer Ecke des sternförmigen Sockelbereichs 12 gekoppelt sein, so dass diese in
Beim Einholen bzw. Spannen des Zugseils 30 mittels der Spannvorrichtung 32 werden die Greifarme 18 in Richtung zur vertikalen Mittelachse bewegt, da ein freies Ende des Zugseils 30 in einem der Greifarme 18 gekontert ist. Im gleichen Greifarm 18 befindet sich ein weiterer Führungskanal unterhalb des ersten Führungskanals 28, von welcher aus eine Verbindung zur Spannvorrichtung 32 hergestellt wird. Das Zugseil 30 ist somit zwischen der Spannvorrichtung 32, einer Umlenkung 124 im Sockelbereich 12, dem Greifarm 18 mit den zwei Führungen sowie den anderen drei Greifarmen 18 gespannt.When recovering or tensioning the
Die Spannvorrichtung 32 ist im gezeigten Ausführungsbeispiel als Fußhebel 321 angedeutet, der in einer der sechs Ecken 122 des Sockelbereichs 12 ausgebildet sein kann. Wahlweise kann der Fußhebel 321 in unmittelbarer Nähe zu einem der Halteelemente 16, und zwar dem mit den beiden Führungskanälen, angeordnet sein, wie dies in
Die Funktion eines am oberen Rand 141 des Aufnahmebereichs 14 angeordneten Wasserstandsanzeigers 142 wird anhand der
Die
Die Öffnungen 181 zwischen den Rückseiten 182 der Greifarme 18 und der Oberfläche 121 des Sockelbereichs 12 sind so schmal gestaltet, dass damit jeweils ein Einklemmschutz gebildet ist. Vorzugsweise sind auch die zum Aufnahmebereich 14 gerichteten Vorderseiten 183 der Greifarme 18 so ausgebildet, dass jeweils ein Einklemmschutz gebildet ist.The
Auch bei der Variante gemäß
Die Schnittdarstellung der
Der Sockelbereich 12 ist im gezeigten Ausführungsbeispiel mit zusätzlichen Versteifungsrippen 125 versehen, welche die Stabilität und Verwindungssteifigkeit des Baumständers 10 erhöhen können. Der gesamte Sockelbereich 12 mit den Versteifungsrippen 125 sowie der Aufnahmebereich 14 mitsamt den Aufnahmetaschen 36 für die Einsätze 34 besteht aus einem Stück. Der Baumständer 10 kann insbesondere aus spritzgegossenem Kunststoff gefertigt sein, der sich in der gewünschten Form einfach und kostengünstig herstellen lässt.The
Mittig im flachen Bodenbereich 143 des Aufnahmebereichs 14 ist eine Zentriereinrichtung für einen einzuspannenden Baum in Form einer Zentrierspitze 50 angeordnet. Diese kann bspw. aus Metall bestehen und ist zur Vermeidung von Undichtigkeiten im Kunststoff des Bodenbereichs 143 eingegossen.Centered in the flat
Zur Befestigung der Spannvorrichtung 32 (nicht dargestellt) dienen Befestigungsdome 126, an denen die Spannvorrichtung 32 verankert, insbesondere verschraubt werden kann.For fixing the clamping device 32 (not shown) serve
An der Unterseite des Baumständers 10 können Standflächen 127 vorgesehen sein, die sich bspw. durch Aufschäumen mittels Polyurethan o. dgl. herstellen lassen. Diese Standflächen 127 können in vorteilhafter Weise beim Spritzgießprozess des Sockel- und Aufnahmebereichs 12, 14 angebracht werden, bspw. mittels eines zweistufigen Spritzgießprozesses. Aufgrund der Standflächen 127 kann auf einen separaten Boden verzichtet werden, der nachträglich angebracht werden müsste, nachdem die Spannvorrichtung 32 und optionale Ballastelemente (nicht dargestellt) angebracht und montiert wurden.On the underside of the
Die weitere Schnittdarstellung der
Die Funktion der Ratschvorrichtung 323 wird anhand der
The function of the
Die schematische Darstellung der
Anhand der
Weiterhin verdeutlicht die
Abdeckscheiben 184 am Greifarm 18 fungieren als seitlicher Einklemmschutz, da sie die axialen Seiten der Schenkelfeder 38 abdecken. Ein Schwenkanschlag 342 am inneren Rahmen des Einsatzes 34 sorgt für eine Begrenzung des maximalen Schwenkwinkels des Greifarms 18 bei seiner Schwenkbewegung um die Schwenkachse 20.
Der Greifarm 18 ist in Richtung zu seiner oberen Spitze 26 am freien Ende 24 leicht nach innen gewölbt, was Vorteile hinsichtlich eines vergrößerten Freiraums für den einzuspannenden Baum bietet. Dieser kann Astreste oder Verwachsungen im unteren Spannbereich aufweisen, ohne dass hierdurch die Funktion des Baumständers 10 nennenswert eingeschränkt wird. Zudem verbessert die nach innen weisende Spitze 26 die Hebelverhältnisse bei relativ dünnen Stämmen, da sich das Zugseil 30 bei vollständig gegen den Baum verspannten Greifarmen 18 relativ weit oben befindet. Das Zugseil 30 kann somit auch bei relativ eng aneinander gezogenen Greifarmen 18 noch eine ausreichende Spannkraft auf diese ausüben.The
Die schematischen Darstellungen der
Die
Der Greifarm 18 ist in einer Achse 41 gelagert, die an den beiden Schmalseiten des Einsatzes 34 verankert ist. Die Achse 41 kann eingeschoben werden, sobald der Greifarm 18 und die Schenkelfeder 38 an ihrem vorgesehenen Einbauort positioniert sind. Die Seitenansicht der
Anhand der schematischen Darstellung der
Die Federzunge 40 mit dem daran angeordneten Rastvorsprung 401 ragt aus der Flachseite des quaderförmigen Einsatzes 34. Der Einsatz 34 kann in senkrechter Richtung von oben in den Einschub 36 im Aufnahmebereich 14 geschoben werden. Mittels der Federzunge 40 kann der Einsatz 34 in der jeweiligen Aufnahmetasche 36 verrastet und gegen Herausziehen gesichert werden. Die Aufnahmetasche 36 kann somit bei einem Spritzgießprozess zur Herstellung des Sockelbereichs 12 des Baumständers 10 berücksichtigt werden, ohne dass aufwändige Nachbearbeitungen notwendig sind. Ein besonderer Vorteil derartiger Aufnahmetaschen 36 liegt in der Möglichkeit der bis oben zum Rand 141 hin geschlossenen, wannenartigen Bauweise des Aufnahmebereichs 14, der ein Auffüllen mit Wasser bis zum oberen Rand hin ermöglicht.The
Anstelle der Schenkelfeder 38 kann die Vorspannung der Greifarme 18 auch auf andere Weise aufgebracht werden, bspw. durch eine Zugfeder 44 oder durch eine Druckfeder 45, wie dies anhand der
Die perspektivische Darstellung der
Die miteinander korrespondierenden Schwenkanschläge 185 und 342 am Greifarm 18 bzw. am Einsatz 34 begrenzen jeweils den maximalen Schwenkwinkel des Greifarms 18 in beide Richtungen.The mutually corresponding pivot stops 185 and 342 on the
Die schematische Darstellung der
Ein möglicher Verlauf des Kanals 46 sowie dessen Anordnung in Bezug auf den horizontalen Führungskanal 28 wird nochmals anhand der
Eine alternative Variante des Greifarms 18 ist in den
Der zusätzliche Kanal 46 weist hier einen gleichmäßig gekrümmten und zur Teilungslängsebene des Greifarms 18 symmetrischen Verlauf auf. Diese Variante des Greifarms 18 eignet sich bspw. zur Verwendung bei einem Baumständer 10, wie er in der
The
Die schematischen Darstellungen der
Die schematischen Darstellungen der
Die
Der gezeigte Verlauf des Zugseils 30 macht eine versenkte und nahezu unsichtbare Anordnung des Zugseils 30 im Bereich zwischen der Umlenkung innerhalb des der Spannvorrichtung am nächsten angeordneten Greifarms und der Spannvorrichtung möglich.The course of the
Die
Weitere Ausführungsvarianten von Greifarmen 18 sind anhand der
Die
Die
Die
Der vertikale Hubweg des Schwimmerkörpers 144 wird durch einen Anschlagsteg 146 begrenzt, der in einer zum Aufnahmebereich gerichteten schlitzartigen Öffnung 147 (vgl.
Wahlweise kann der Schwimmerkörper 144 auch ein geschlossenes Volumen aufweisen, das jedoch eine geringere Dichte aufweisen muss als Wasser, damit der Schwimmerkörper 144 auf dem Wasser aufschwimmt. Der Schwimmerkörper 144 kann bspw. aus einem geeigneten Kunststoff bestehen, bspw. aus geschäumtem Polyurethan.Optionally, the
Der Schwimmerkörper 144 kann wahlweise an seiner Außenmantelfläche variierende Farben oder Markierungen aufweisen, die bspw. auf halber Höhe angeordnet sind und auf diese Weise das exakte Ablesen des jeweiligen Wasserstandes erleichtern.The
Eine zusätzliche Auslaufsicherung für aus dem Aufnahmebereich 14 austretendes Wasser kann anhand der
Das Auffüllen mit Wasser erfolgt typischerweise, indem zunächst soviel Wasser in den Aufnahmebereich 14 eingefüllt wird, bis der Wasserstandsanzeiger 142 anspricht. Anschließend kann Wasser nachgefüllt werden, bis die obere Überflutungsfläche des muldenartigen Bereichs 148 überflutet ist.The filling with water is typically carried out by first filling so much water in the receiving
Der muldenartige Bereich 148, der den Aufnahmebereich 14 am oberen Rand 141 umgibt, kann wahlweise einen runden oder andersartig geformten Durchmesser aufweisen, der deutlich größer sein muss als der Durchmesser des Aufnahmebereichs 14, um seine vorgesehene Funktion erfüllen zu können. Der muldenartige Bereich 148 kann jedoch auch die Außenkontur des Baumständers 10 aufnehmen und sternförmig gestaltet sein, wobei vorzugsweise eine parallele Struktur zur Außenkontur des Baumständers 10 gebildet ist, wie dies in den Figuren gezeigt ist.The trough-
Um bei bis zum oberen Rand mit Wasser gefülltem Aufnahmebereich 14 zuverlässig zu verhindern, dass das Wasser durch den Kanal 124 zur Umlenkung des Zugseils 30 austreten und bspw. nach unten auslaufen bzw. in den Sockelbereich 12 des Baumständers 10 eindringen kann, weist das in den
Eine ähnliche Variante mit einem erhöhten Seilaustritt 129 mit einer oberhalb des muldenartigen Bereichs 148 angeordneten Öffnung 130 für das Zugseil ist auch in den
Die
Der Fußhebel 321 ist in einem Rahmen 326 gelagert, der durch zwei mit der Befestigungsplatte 322 verbundene Blechwangen gebildet ist. Der Fußhebel 321 ist auf einer Welle 327 gelagert, deren Verlängerung als Seiltrommel 328 ausgebildet ist, auf der beim Betätigen der Spannvorrichtung 32 das Zugseil 30 aufgewickelt wird. In den
Auf der Welle 327 ist weiterhin das Zahnrad 324 drehfest angebracht, das sich normalerweise mit dem Fußhebel 321 über den Klinkenhebel 325 im Eingriff befindet (vgl.
Hierdurch wird ein Überlastschutz für das gesamte System zur Verfügung gestellt, der das Spannsystem, die Spannkrallen sowie die Schalenkonstruktion vor Überlastungen und eventuellen Brüchen schützen kann. Aufgrund der erreichten Begrenzung der auftretenden Gesamtkräfte können die erforderlichen Wanddicken des Ständers reduziert werden. Insgesamt kann der Materialaufwand reduziert werden bzw. können unterschiedliche Materialien eingesetzt werden. Auch die Fertigungs- und Materialkosten für den Baumständer können reduziert werden.This provides an overload protection for the entire system, which can protect the clamping system, the clamping claws and the shell construction from overloads and possible fractures. Due to the achieved limitation of the total forces occurring, the required wall thickness of the stand can be reduced. Overall, the cost of materials can be reduced or different materials can be used. Also, the manufacturing and material costs for the tree stand can be reduced.
Da der Klinkenhebel 325 gleichzeitig mit einer Kulisse 329 am Rahmen 326 zusammen wirkt (vgl.
Die
Die Darstellung der
Die Bedienbarkeit des Hebels 335 ist die selbe wie bei Schusswaffen, so dass sich die Bedienlogik unmittelbar und intuitiv erschließt, ohne dass besondere Überlegungen notwendig sind.The operability of the
Die Teilschnittdarstellungen der
Die perspektivische Querschnittdarstellung der
Die
Anhand der
Weiterhin zeigen die
Die Versteifungsrippen 125 der in
Bei der Variante gemäß
Die gewünschte Standfestigkeit des Baumständers 10 kann durch entsprechende Ballastgewichte (nicht dargestellt), durch Auffüllen der Hohlräume des Sockelbereichs 12 mit Wasser, Sand oder anderen geeigneten Materialien hergestellt werden, wobei bei flüssigen oder rieselfähigen Ballastelementen bzw. -stoffen ein geschlossener Boden (nicht dargestellt) notwendig ist, der bspw. mit dem Sockelbereich 12 verschraubt, verklebt oder anderweitig verbunden sein kann. Wahlweise kann der Boden verklebt, verschweißt, verschraubt, verschnappt bzw. verrastet, verpresst oder vernietet sein. Auch Kombinationen dieser Befestigungsarten sind möglich.The desired stability of the
Wahlweise kann der Boden eine mittige Aussparung aufweisen, die in ihrer Größe dem Außendurchmesser des Aufnahmebereichs 14 entspricht, so dass dieser durch den Boden hindurchreichen kann.Optionally, the bottom may have a central recess corresponding in size to the outer diameter of the receiving
Die
Die Zentrierschale 56 entsprechend der
Die Zentrierringe 52, 54 bzw. die Zentrierschale 56 können in unterschiedlichen Dimensionierungen gefertigt werden und je nach Bedarf in den Aufnahmebereich 14 eingelegt werden.The centering rings 52, 54 and the centering 56 can be made in different dimensions and inserted as needed in the receiving
Die gezeigten Zentrieranordnungen entsprechend der
Die Darstellung der
Die in der vorstehenden Beschreibung, den Zeichnungen und den Ansprüchen offenbarten Merkmale der Erfindung können sowohl einzeln als auch in beliebiger Kombination für die Verwirklichung der Erfindung in ihren verschiedenen Ausgestaltungen von Bedeutung sein. Die Erfindung ist nicht auf die vorstehenden Ausführungsbeispiele beschränkt. Vielmehr ist eine Vielzahl von Varianten und Abwandlung denkbar, die von dem erfindungsgemäßen Gedanken Gebrauch machen und deshalb ebenfalls in den Schutzbereich fallen.The features of the invention disclosed in the foregoing description, drawings and claims may be significant to the realization of the invention in its various forms both individually and in any combination thereof. The invention is not limited to the above embodiments. Rather, a variety of variants and Variation conceivable that make use of the inventive concept and therefore also fall within the scope.
Der erfindungsgemäße Ständer kann sowohl ohne einen separaten Boden als auch ohne separaten Ballast gefertigt sein. Es kann jedoch auch eine untere Bodenplatte vorgesehen sein, welche aufgepresst, eingeschnappt, angeklebt, verschraubt oder verschweißt ist.The stand according to the invention can be made both without a separate floor and without separate ballast. However, it may also be provided a lower bottom plate, which is pressed, snapped, glued, screwed or welded.
Weiterhin können bei dem erfindungsgemäßen Ständer Versteifungsrücken und/oder Verbindungrippen mit einer Vergussmasse ausgegossen sein oder auch mit Ballaststeinen ausgelegt sein. Daneben ist es auch möglich, dass derartige Ballaststeine mit den Versteifungsrippen und/oder den Verbindungsrippen verklebt sind.Furthermore, stiffening spine and / or connecting ribs may be filled with a potting compound in the stator according to the invention or be designed with ballast stones. In addition, it is also possible that such ballast stones are glued to the stiffening ribs and / or the connecting ribs.
Claims (13)
- Stand (10) for securely anchoring a rod-shaped object, particularly a tree, Christmas tree or the like, comprising a base region (12) and a receiving region (14) arranged therein for a lower section of the object to be anchored, and comprising at least three retaining elements (16) which are arranged concentrically around the receiving region (14) and which can in each case be pivoted about a horizontal axis (20) in a plane perpendicular to the longitudinal axis of the tree, which retaining elements can be clamped against the trunk section by means of a single tensioning means which is guided in each of the retaining elements (16) and is actively connected to a tensioning device (32), wherein the receiving region (14) is formed in one piece with the base region (12), characterised in that the tensioning means is guided through a raised cable outlet (129) which is arranged in the base region (12) and the opening (130) of which for the tensioning means is arranged above an upper face (121) of the base region (12).
- Stand according to claim 1, in which one end of the tensioning means is clamped in the tensioning device (32), and in which the tensioning means is mounted in the form of a cable loop in the retaining elements (16) and is fixed by its other end in one of the retaining elements (16) or to the stand (10).
- Stand according to one of the preceding claims, in which a free end of the tensioning means has a stop which is contoured respectively fixed in a guide or in a stop in the stand (10).
- Stand according to one of the preceding claims, in which a flat, trough-like region (148) of relatively large diameter is provided at the upper edge of the receiving region (14) and is recessed relative to the horizontal upper face (121) of the base region (12).
- Stand according to one of the preceding claims, in which the tensioning means is guided through a raised cable outlet (129) which is arranged in the base region (12) and whose opening (130) for the tensioning means is arranged above the level of the trough-like region (148).
- Stand according to one of the preceding claims, in which the retaining elements (16) are made from plastic and/or from metal.
- Stand according to one of the preceding claims, in which the retaining elements (16) are made from plastic and spikes (261) and/or inserts (262) are made from metal.
- Stand according to one of the preceding claims, in which the pot-shaped container of the receiving region (14) is made from plastic or from metal.
- Stand according to one of the preceding claims, in which a base dish is made from plastic.
- Stand according to one of the preceding claims, in which the receiving region (14) forms a watertight dish or a watertight bowl region.
- Stand according to one of the preceding claims, in which a plurality of struts are provided in the base region (12).
- Stand according to one of the preceding claims, in which radial reinforcing ribs (125) and/or connecting ribs (132) arranged transversely relative thereto are provided in the base region (12), said ribs being formed in one piece with the base region (12).
- Stand according to one of the preceding claims, in which the tensioning device (32) comprises a foot pedal (321) which is configured as a corner section of the polygonal base region (12).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004011788 | 2004-03-09 | ||
DE102004017924 | 2004-04-09 | ||
DE102004023238.5A DE102004023238B4 (en) | 2004-03-09 | 2004-05-07 | Stand for anchoring a rod-shaped object, in particular a tree |
PCT/EP2005/002490 WO2005087060A2 (en) | 2004-03-09 | 2005-03-09 | Stand for anchoring a rod-shaped object, particularly a tree |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1725148A2 EP1725148A2 (en) | 2006-11-29 |
EP1725148B1 true EP1725148B1 (en) | 2010-05-26 |
Family
ID=34964072
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05715878A Not-in-force EP1725148B1 (en) | 2004-03-09 | 2005-03-09 | Stand for anchoring a rod-shaped object, particularly a tree |
EP05730304A Not-in-force EP1725149B1 (en) | 2004-03-09 | 2005-03-09 | Stand for anchoring a pole-like object in particular a tree |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05730304A Not-in-force EP1725149B1 (en) | 2004-03-09 | 2005-03-09 | Stand for anchoring a pole-like object in particular a tree |
Country Status (3)
Country | Link |
---|---|
EP (2) | EP1725148B1 (en) |
DE (1) | DE502005002041D1 (en) |
WO (2) | WO2005087061A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007022642B4 (en) * | 2007-05-15 | 2011-08-25 | HIMAS Massenartikel GmbH, 93342 | Stand for anchoring a rod-shaped object and in particular a Christmas tree or clamping element for such a stand |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3932473A1 (en) | 1989-09-28 | 1991-04-11 | Klaus Krinner | CHRISTMAS STAND |
DE29707643U1 (en) | 1997-04-28 | 1997-07-03 | Schulz, Farriba, 80799 München | Christmas tree stand |
DE19903634A1 (en) * | 1999-01-29 | 2000-08-10 | Krinner Klaus | Christmas tree stand consists of one -piece housing with pot in center for trunk and swivelling latches carrying stay symmetrically spaced around it |
DE20016472U1 (en) | 2000-09-22 | 2000-12-21 | Schulz, Petra, 81925 München | Christmas tree stand with cable IV |
DE10202891B4 (en) | 2002-01-25 | 2007-09-20 | Krinner Innovation Gmbh | Stand for mounting rod-shaped parts |
DE20218172U1 (en) * | 2002-01-25 | 2003-02-20 | Krinner GmbH, 94342 Straßkirchen | Stand for mounting of rod-form components has housing with cover and base inseparably interconnected by seam so that chamber formed between them is sealed pressure and moisture tight allowing complete filling with weighting material |
DE20309947U1 (en) | 2003-06-27 | 2003-10-09 | Krinner Innovation GmbH, 94342 Straßkirchen | Stand with ratchet type clamping device, especially for Christmas tree, has clamping lever with slot and outer contour cooperating with rotary body shaft and stand foot |
-
2005
- 2005-03-09 WO PCT/EP2005/002494 patent/WO2005087061A1/en active IP Right Grant
- 2005-03-09 WO PCT/EP2005/002490 patent/WO2005087060A2/en active Application Filing
- 2005-03-09 DE DE502005002041T patent/DE502005002041D1/en active Active
- 2005-03-09 EP EP05715878A patent/EP1725148B1/en not_active Not-in-force
- 2005-03-09 EP EP05730304A patent/EP1725149B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP1725148A2 (en) | 2006-11-29 |
WO2005087060A2 (en) | 2005-09-22 |
WO2005087060A3 (en) | 2006-05-04 |
WO2005087061A1 (en) | 2005-09-22 |
EP1725149B1 (en) | 2007-11-21 |
EP1725149A1 (en) | 2006-11-29 |
DE502005002041D1 (en) | 2008-01-03 |
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