Working aid

Abstract

The present invention provides a work aid (10) that can be used in numerous different work situations. The work aid (10) is portable and easy to transport. It is simple in design, inexpensive in construction, and comfortable and easy to use.

Description

[0001] The present invention relates to a working aid according to the preamble of claim 1.

[0002] Work aids with a support for a workpiece are used in a variety of ways in trade, industry and the home to enable certain tasks to be carried out easily, comfortably and / or at all.

[0003] There are different work aids for different applications, but each has a support for a specific workpiece.

[0004] The object of the present invention is to provide a work aid that can be used for numerous different work situations. Preferably, the work aid should be mobile and easy to transport. In particular, it should be simple in design, inexpensive in construction, and comfortable and easy to understand in operation.

[0005] This object is achieved with the work aid according to the invention as claimed in claim 1. Advantageous further developments are specified in the dependent claims and in the following description together with the figures.

[0006] The inventors realized that this task could be solved surprisingly easily if the tool had pivoting feet, as it could then be easily adapted to specific floor conditions. Furthermore, it could be easily reduced in size, making it easier to transport.

[0007] The work aid according to the invention, comprising a stand having a longitudinal axis, wherein a stand element for placing the work aid on a floor and a support for a workpiece are arranged on the stand, is characterized in that the stand element has at least three feet that are pivotable from a pivoted-out position to a pivoted-in position with respect to the longitudinal axis. With three feet, the stand can be particularly easily adapted to different, particularly uneven, floors. With four or more feet, the load supported by the work aid is distributed particularly well.

[0008] In an advantageous further development, the feet are designed to be lockable in the extended and / or retracted positions. This ensures that the work aid stands particularly securely on the floor.

[0009] In an advantageous refinement, the feet fit snugly against the base element in the extended position. This ensures that the work aid remains particularly secure on the floor, even when subjected to heavy loads from the workpiece.

[0010] In an advantageous further development, the feet are accommodated in corresponding guides, with the feet having an elongated hole through which an axis of the respective guides extends for pivoting the foot accommodated in the guide. This allows for very simple and safe pivoting.

[0011] In an advantageous further development, the guides have an opening above and below the longitudinal axis for the passage of the corresponding foot in its retracted position. This makes the work aid particularly compact when the feet are retracted, while still ensuring a high load-bearing capacity of the stand element.

[0012] In an advantageous further development, the guides, with respect to the axis between the longitudinal axis and the axis, have a support below the corresponding foot in its pivoted-out position to prevent the foot from pivoting. This ensures that the work aid remains particularly secure on a floor, even under heavy loads from the workpiece.

[0013] In an advantageous further development, the guides, with respect to the axis, opposite the longitudinal axis above the corresponding foot in its pivoted-out position, have a support to prevent the foot from pivoting. This also ensures that the work aid rests particularly securely on a floor, even under heavy loads from the workpiece.

[0014] In an advantageous further development, the feet are inserted into pockets on the stand element when swiveled out. This ensures that the work aid remains particularly secure on the floor, even when subjected to heavy loads from the workpiece.

[0015] In an advantageous further development, a fixing device, preferably designed as a nut, is arranged on the axle for clamping the foot in the guide. This makes the work aid even more stable on the floor because it prevents accidental pivoting.

[0016] In an advantageous refinement, the guide has two legs that run parallel to each other, with the base preferably being formed as a sheet metal part. This makes the stand element particularly simple in design yet stable.

[0017] In an advantageous further development, the stand is provided with stops for the feet in their extended position, with the stops preferably being surrounded on all sides by the corresponding guides. This also further improves the stability of the work aid.

[0018] In an advantageous further development, the stand is designed to be telescopic, with at least one stand section extending into another. This allows the work aid to be easily adapted to many different tasks.

[0019] In an advantageous refinement, the stand extends beyond the guides to the floor. This makes the work aid particularly stable, even with heavy workpiece loads and for various heights. In particular, the stand could be aligned with the feet when the feet are swung out, so that the work aid rests not only on the feet but also on the stand itself.

[0020] In an advantageous development, the post section running in the other post section has several equally spaced openings, and the other post section has an opening through which a bolt can be pushed. The bolt is preferably designed to be lockable and preferably has a stop and, opposite the stop, an opening for a locking pin. This allows the work aid to be adjusted and secured to different heights particularly quickly and with repeatable accuracy. The spacing of the openings is preferably in the range 10 mm to 50 mm, preferably in the range 20 mm to 30 mm, and in particular is 25 mm.

[0021] In an advantageous development, it is provided that a post part has a thread in which a threaded rod is arranged, wherein a nut is preferably arranged on the threaded rod for locking against the post part. This allows the height of the work aid to be adjusted particularly precisely. The thread pitch is preferably in the range 1.0 mm to 5.0 mm, more preferably in the range 1.5 mm to 3.0 mm and is in particular 2.5 mm. With a thread pitch of 2.5 mm, particularly fine adjustment is possible, since a stroke of approximately 0.6 mm is achieved with a quarter turn. In addition, an opening distance of 25 mm is compensated over 10 thread turns.

[0022] In an advantageous development, the support has two first rotatable elements. This allows workpieces to be guided over the support particularly easily. Independent protection is claimed for this design. Within the scope of this independent protection, it is therefore not important whether the stand element has at least three feet that are arranged to pivot from an extended position to a retracted position with respect to the longitudinal axis; it is only mandatory that the support has two first rotatable elements.

[0023] In an advantageous further development, the distance between the first rotating elements is selectively adjustable. This allows the support to be very easily adapted to workpieces of different sizes.

[0024] In an advantageous further development, the axes of the first two rotating elements are arranged on one line or on two different lines. When the axes of the rotating elements are arranged on one line, workpieces can be transported particularly easily across the support between the two rotating elements.

[0025] For example, this allows pipes or similar workpieces to be safely guided, especially for cutting, sawing, etc. Examples of applications include cutting, sawing, and grinding, as well as the storage of larger and heavier materials during processing, such as milling.

[0026] If the axes of the rotating elements are aligned on different lines, workpieces can be rotated around a longitudinal axis between the two rotating elements, especially on the support. This allows the workpiece to "roll" between the two axes, for example. This allows, for example, a pipe to be placed on a welding table to weld round covers without stopping using an electrode or using a TIG welding process without stopping. Furthermore, with this design, the weld seams can be subsequently machined on a grinding machine.

[0027] In an advantageous further development, four first rotatable elements are provided, with two first rotatable elements each located on a common axis, and the two axes arranged parallel and spaced from each other. Then, either a workpiece transport over the support or a workpiece rotation can be performed, depending on how the workpiece is placed on the first rotatable elements.

[0028] In an advantageous further development, there is a pivoting element on which a second rotatable element is arranged, wherein the second rotatable element is arranged such that it can be pivoted by means of the pivoting element from a rest position below the support surface of the first rotatable elements to a working position above the support surface of the first rotatable elements, wherein the rest position and / or the working position are preferably designed to be fixable. Workpieces can then be guided in a very defined manner on the support between the first rotatable elements and the second rotatable element. Furthermore, workpieces can also be placed and transported directly on the second rotatable element if necessary. If the second rotatable element is designed as a wide roller, even flat and wide materials can be unrolled, such as flat iron, square tubes, boards, beams, etc.These workpieces can then be easily cut to length.

[0029] This design also claims independent protection. Within the scope of this independent protection, it is therefore not important whether the stand element has at least three feet that are pivotable relative to the longitudinal axis from an extended position to a retracted position. Rather, it is only mandatory that the support has two first rotatable elements. Furthermore, it is also not important whether the support has two first rotatable elements.

[0030] In an advantageous development, the first rotating elements and / or the second rotating element are designed as a wheel or roller. This allows corresponding workpieces to be very easily stored and transported on the work aid.

[0031] In an advantageous further development, the pivoting element comprises two supports, each of which houses one, preferably two, elongated guide holes. This allows for very simple pivoting and / or adjustment of the orientation of the second rotatable element relative to the first rotatable elements.

[0032] In an advantageous further development, the supports are pivotably mounted on an axis of the support. This also makes it very easy to pivot and / or adjust the orientation of the second rotatable element relative to the first rotatable elements.

[0033] In an advantageous further development, the supports rest on two shelves in the rest position of the pivoting element and are accommodated between the shelves in the working position, with the shelves preferably enclosing the supports in a form-fitting manner. This makes the work aid particularly stable, even when using the second rotatable element.

[0034] In an advantageous further development, the supports, in the working position, extend upwards beyond the second rotatable element with respect to the longitudinal axis. The supports then simultaneously form a guide for the workpiece, allowing it to be placed and transported on the work aid more easily and safely. However, if the supports, in the working position, do not extend upwards beyond the second rotatable element with respect to the longitudinal axis, then workpieces with a greater width than the second rotatable element can also be placed and transported on the second rotatable element.

[0035] In an advantageous further development, a cover, preferably designed as a cover plate, can be arranged and removed optionally above the first rotatable elements. This allows the work aid to also be used for storing workpieces that are not to be transported on the work aid, but are only to be placed or supported. This allows, for example, the storage and cutting of plasterboard panels to be carried out using multiple work aids 10.

[0036] In an advantageous development, the cover has an opening for attaching a pressure ram, which is preferably equipped with a buffer element. This allows even delicate workpieces to be placed on the work aid. Furthermore, it allows workpieces to be placed or supported in a defined manner on a relatively small support point.

[0037] The features and further advantages of the present invention will become clear below from the description of a preferred embodiment in conjunction with the figures. These show, purely schematically: Fig. 1 the working aid according to the invention in a first operating state, Fig. 2 the working aid according to Fig. 1 in a second operating state, Fig. 3 the working aid according to Fig. 1 in a third operating state, Fig. 4 a detailed view of the work aid according to Fig. 2 , Fig. 5 a detailed view of the working aid according to Fig. 1 , Fig. 6 a detailed view of the work aid according to Fig. 1 in a fourth operating state, Fig. 7 a detailed view of the work aid according to Fig. 1 , Fig. 8 a detailed view of the working aid according to Fig. 1 in a fourth operating state and Fig. 9 a detailed view of the work aid after Fig. 1 in a fifth operating state.

[0038] In the Fig. 1 bis 9 the working aid 10 according to the invention is shown purely schematically in various views.

[0039] It can be seen that the work aid 10 has a stand 12 with a longitudinal axis L, wherein a stand element 14 is arranged at the bottom of the stand 12 and a support 16 for a workpiece (not shown) is arranged at the top, i.e. opposite the stand element 14.

[0040] The stand 12 has a first stand part 18, a second stand part 20, and a third stand part 22, which extend telescopically into one another. More specifically, the third stand part 22 extends in a form-fitting manner into the second stand part 22, and the second stand part 20 extends in a form-fitting manner into the first stand part 18.

[0041] The first post part 18 has a continuous opening 24 through which a bolt 26 can be pushed, which can be secured with a cotter pin 28. As a counterpart to the cotter pin, there is a stop 30 on the bolt 26, which rests against the first post part 18 when the bolt 26 is inserted into the opening 24.

[0042] The second stand part 20 has continuous openings 32 arranged continuously in a specific grid, which have the same diameter as the opening 24, so that the bolt 26 can engage both through the opening 24 and through one of the openings 32.

[0043] At the head 34 of the third post part 22, there is an internal thread (not shown) into which a threaded rod 36 of the support 16 is screwed. The threaded rod 36 is firmly connected, in particular welded, to the support 16.

[0044] Between the second post section 20 and the third post section 22, there is also a bolt 38 with an opening 39 for a cotter pin 40 and a stop 42 to determine the extension height. For this purpose, the third post section 22 also has openings 44 arranged in the same notch.

[0045] In addition, there are locking screws 46, 48 on both the first post part 18 and the second post part 20, with which the second post part 20 is clamped in the first post part 18 and the third post part 22 in the second post part 20, respectively. Furthermore, there is a lock nut 50 with which the extension of the threaded rod 36 from the head 34 of the third post part 22 can be secured by locking it against the head 34.

[0046] In a preferred variant, the first post part 18 has a square outer cross-section of 40 mm x 40 mm with a wall thickness of 2 mm, the second post part 20 has a square outer cross-section of 35 mm x 35 mm with a wall thickness of 2 mm, and the third post part 22 has a square outer cross-section of 30 mm x 30 mm with a wall thickness of 2 mm. The internal thread is on a metric M20 x 2.5 nut, so that the threaded rod is also designed as an M20 x 2.5, i.e., has a pitch of 2.5 mm for one complete revolution. The pitch of the openings 32, 44 is 25 mm.

[0047] This allows the stand to be adjusted via the stand parts 18, 20, 22 at intervals of 2.5 mm and the fine adjustment in the range of 2.5 mm is carried out by turning the threaded rod 36 in the internal thread, whereby a quarter turn causes a stroke of approx. 0.6 mm.

[0048] In another preferred variant, the first post part 18 has a square outer cross-section of 60 mm x 60 mm with a wall thickness of 2 mm, the second post part 20 has a square outer cross-section of 55 mm x 55 mm with a wall thickness of 2 mm, and the third post part 22 has a square outer cross-section of 50 mm x 50 mm with a wall thickness of 2 mm. The internal thread is on a metric nut M30 x 3.5, so that the threaded rod is also designed as an M30 x 3.5, i.e., has a pitch of 3.5 mm for one complete revolution. The pitch of the openings 32, 44 is 35 mm.

[0049] This allows the stand to be adjusted via the stand parts 18, 20, 22 at intervals of 2.5 mm and the fine adjustment in the range of 2.5 mm is carried out by turning the threaded rod 36 in the internal thread, whereby a quarter turn causes a stroke of approx. 0.6 mm.

[0050] The stand element 14 comprises four feet 52, each having a support element 54 with a base 56 arranged thereon. At the end of the feet 52 opposite the bases 56, the support elements 54 are beveled 58 such that the support elements 54, in the swung-out state (cf. Fig. 2 and 4 ) of the support elements 54 bear positively against the first stand part 18.

[0051] The support elements 54 are each enclosed by a guide 60 consisting of two plane-parallel plates 62a, 62b that are connected to each other via a web 64. This web 64 forms a stop for the support elements 54 when the support elements 54 are pivoted out.

[0052] Furthermore, the guides 60 are welded to the first upright section 18 in such a way that a surround 66 is formed for the support element 54, which rests positively against the first upright section 18 in the pivoted-out state. These surrounds 66 thus form insertion pockets 66 for the support elements 54, so that they are additionally supported in the pivoted-out state. Between the web 64 and the surround 66, there is an opening D through which the respective foot 52 can be inserted in its pivoted-in position.

[0053] Apart from the web 64 and the enclosure 66, the plates 62a, 62b have no direct connection whatsoever, so that the support elements 54 can be freely pivoted between the plates 62a, 62b.

[0054] The plates 62a, 62b have a continuous opening (not shown) through which a clamp 67 in the form of a screw 68 and a toggle nut 70 is guided. The support elements 54 have an elongated hole guide (not shown) that extends parallel to the longitudinal extent of the support elements 54 and through which the screw 68 is guided.

[0055] This allows the feet to be pulled out of the pockets 66 in the swung-out state when the clamp 67 is released. Subsequently, the support elements 54 can be swung downwards towards the first stand part 18 and, if necessary, pushed upwards and clamped again by tightening the toggle nut 70 (see the right side in Fig. 1 and 5 ).

[0056] When fully swung out and inserted into the pockets 66, the support elements 54 rest positively against the first stand part 18. They also engage positively in the pockets 66 and rest against the web 64 (see Fig. 2 and 4 ). They can be additionally secured by the clamp 67, whereby the two plates 62a, 6b clamp the support element 54 in a form-fitting manner.

[0057] Due to this special design, the feet 52 can accommodate large loads and are nevertheless easy to pivot and require only a small amount of space when pivoted in (cf. Fig. 1 and 5 ) on.

[0058] The first stand part 18 projects downwards beyond the enclosures 66 of the feet 52 and forms another foot 72, which is provided with a buffer 74. This foot 72 serves as a safety feature in case the feet 52 cannot withstand a certain load from a supported workpiece, which is why the foot 72 ends slightly above the level of the pivoted support surfaces 56 (see Fig. 2 ). Alternatively, the foot 72 could also end in the same plane as the pivoted-out shelves 56.

[0059] In connection with the Fig. 6 bis 9 The support 16 according to the invention will now be described in more detail.

[0060] The support 16 has a base 78, which is designed as a U-shaped groove and is firmly welded to the threaded rod 36. Flanges 82 are arranged on both sides of the base plate 80 of the base 78 via screw connections 84. These flanges 82 each have buffers 84 at their ends for safety reasons. Furthermore, an opening 86 is arranged centrally in the flanges 82.

[0061] U-shaped brackets 90a, 90b are arranged on the side surfaces 88a, 88b of the base 78, respectively, with openings (not shown) extending through their side surfaces 92. A long nut 94 is arranged between the side surfaces 92.

[0062] Furthermore, two elongated holes 96 arranged opposite the brackets 90a, 90b are connected to the side surfaces 88a, 88b, wherein axes 98 are slidably received in the longitudinal direction of the elongated holes 96 in the opposite elongated holes 96 of the two side surfaces 88a, 88. These axes 98 are fixed to one side 100 by legs 102.

[0063] The other side 104 of the legs 102 has an opening (not shown) through which a threaded rod 106 extends, which is fixed on the other side 104 with two nuts 108, 110. Opposing threaded rods 106 are each held in the long nut 94, with the opposing threaded rods 106 having opposing threads (not shown). Thus, the distance between the opposing axes 98 can be continuously varied by rotating the long nut 94.

[0064] Two wheels 112a, 112b are arranged at a distance from one another on the axles 98, so that a gap 114 results between the wheels 112a, 112b of an axle 98 (cf. Fig. 7 ). Between the two axes 98, there is a gap 116 (cf. Fig. 6 ), the width of which can be changed by means of the long nut 94, as described above.

[0065] On the two side surfaces 88a, 88b, two shelves 120 are screwed 122, which are connected to one another via a sheet 118 and are arranged horizontally adjacent.

[0066] Above the shelves 120 is a stop 124 with an internal thread (not shown) into which the threaded rod 126 of a knurled nut 128 can be screwed. A support 130a, 130b with an elongated hole 132 is placed on the threaded rod 126 and can be clamped against the stop 124 by means of the knurled nut 128.

[0067] The two opposing supports 130a, 130b form a pivoting element 134 for a roller 136, whose axle 138 is guided in slots 140 of the supports 130a, 130b. The axle 138 has an external thread (not shown) on both sides, onto which knurled nuts 142 are screwed, so that the position of the axle 138 can be fixed in the slots 140.

[0068] With the help of the pivoting element 134, the roller 136 can be Fig. 6 shown rest position, in which the supports 130a, 130b each rest on the corresponding shelves 120 and the axle 138 is below the support surface of the wheels, into a working position in which the roller 136 is above the support surface of the wheels 112a, 112b and the supports 130a, 130b are held on both sides in a form-fitting manner between the shelves 120.

[0069] To transfer from the rest position (see Fig. 6 ) into the working position, the clamping with the knurled nut 128 is released and the supports 130a, 130b are first pulled with their lower ends 144 up to the threaded rods 126. Then the pivoting element 134 is pivoted into the vertical position and subsequently the supports 130a, 130b are lowered onto the threaded rods 126 up to the upper end 146 of the elongated hole 132 and the knurled nuts 1128 are tightened and thereby fixed against the stop 124 by clamping again (cf. Fig. 7 ).

[0070] Through the elongated holes 140, the axis 138 can be aligned relative to the supports 130a, 130b in such a way that the supports 130a, 130b either project vertically beyond the roller 136 (cf. Fig. 7 , left side) or below the storage level of the roller 136 (cf. Fig. 7 , right side).

[0071] Furthermore, there is a cover 148 designed as a cover plate, which has a central horizontal section 150 and two sections 152a, 152b inclined thereto. Threaded rods 154 are welded to the inclined sections 152a, 152b, which extend downward and can be inserted through the openings 86 of the flanges 82.

[0072] The four projections 156 arranged on either side, each adjacent to a wheel 112a, 112b when plugged in, serve as insertion aids or mounting aids for the cover 148 onto the flanges 82. The threaded rods 154 are spaced apart such that they each fit into the gap 114. After inserting the threaded rods 154 into the openings 86, the threaded rods 154 can be secured using appropriate nuts (not shown).

[0073] Finally, the cover 148 has a central opening 158 with an internal thread (not shown) into which a pressure stamp 160 can be screwed, which for this purpose has a buffer element 162 which is fixed to a threaded rod 164, wherein the screwing of the threaded rod 164 into the opening 158 can be countered by means of a nut 166 (cf. Fig. 9 ).

[0074] The length of the first column section 18 is 620 mm to its upper edge, the length of the second column section 20 is 520 mm to its upper edge, and the length of the third column section 22 is 730 mm to the upper edge of the wheels 112a, 112b, 740 mm to the upper edge of the cover 148, 790 mm to the upper edge of the roller 136, and 820 mm to the upper edge of the pressure stamp 160. The total height of the device in the fully extended state is 1960 mm. The threaded rod 36 is then unscrewed to its maximum. It can be adjusted by a total of 75 mm.

[0075] In its lowest setting with the feet 52 swung out, the work aid 10, with the second stand part 20 and the third stand part 22 each recessed, has a height of 778 mm to the upper edge of the wheels 112a, 112b, 784 mm to the upper edge of the cover 148 and 810 mm to the upper edge of the roller 136.

[0076] Instead of the pressure pad 160, a small jack (not shown) can be securely positioned on the 100 mm x 120 mm surface of the cover plate 148. The jack, for example, is 150 mm high and has a stroke of 100 mm. The base area of ​​the jack is 90 mm x 90 mm and is commercially available.

[0077] The working aid 10 is now used as follows: When the feet 52 are pivoted in, the entire device 10 with all additional parts can be picked up and transported in a quiver 76 (see Fig. 3 ), whereby a lid serves to close the quiver 76 (in Fig. 3 Not shown). The quiver 76 with lid has an outer diameter of 200 mm and a length of 900 mm. The height of the work aid 10, when the stand element 14 is pivoted in, up to the wheels 112a, 112b is 775 mm, while the work aid 10 reaches a maximum height of 1,880 mm.

[0078] After opening the quiver 76, the work aid 10 is removed and the feet 52 are swung out after loosening the toggle nuts 70, inserted into the enclosures 66, and re-secured with the toggle nuts 70. The stand 12 is then telescoped to approximately the desired length by loosening the screws 46, 48. It is first fixed by inserting the bolts 26, 38 into the openings 24, 32, 44 and then secured by the corresponding locking pins 28, 40 and by tightening the locking screws 46, 48. The exact height is then set by screwing the threaded rod 36 in or out of the head 34 of the third stand section 22, and this position is secured using the lock nut 50.

[0079] Depending on the application, the design of the support 16 is now selected: If a sensitive workpiece (not shown) is to be supported, the pressure stamp 160 with the buffer element 162 is selected.

[0080] If, however, an insensitive workpiece (not shown) is to be supported from below, the pressure stamp 160 can be removed from the cover 148 and the workpiece can thus be supported directly on the cover 148.

[0081] These two variants are mainly used for static workpieces that are not to be moved on support 16.

[0082] For moving workpieces (not shown) that are flat, the roller 136 is used. To do this, the pivot element 134 is released by loosening the knurled nuts 128, the lower end 144 of the supports 130a, 130b is pulled toward the threaded rods 126, and the pivot element 134 is pivoted into the vertical position. The pivot element 134 is then lowered, causing the upper end 146 of the elongated holes 132 to strike the threaded rod 126, and the supports 130a, 130b to be held in a form-fitting manner between the two shelves 120. Finally, the knurled screws are retightened, thus securing the position of the pivot element 134.

[0083] The roller 136 now rests on the wheels 112a, 112b and is supported by them, whereby a rotation of the roller 136 is transmitted to the wheels 112a, 112b.

[0084] In the event that the workpiece is to be secured laterally against sliding off the roller 136, the supports 130a, 130b are not placed on the shelves 120 with the upper end 146 of their elongated hole 132, but are moved upwards so far that they project upwards beyond the roller 136.

[0085] The position of the roller 136 in the supports 130a, 130b is determined by moving the axis 138 in the elongated holes 140 and secured by means of the knurled nuts 142.

[0086] For workpieces to be moved (not shown) which have a round, oval, square or almost square cross-section and are relatively long, support is provided either in the slot 116, the width of which can be specifically adjusted by actuating the long nut 94, or support is provided in the slots 114.

[0087] The first type of support in the slot 116 is suitable, for example, for machining weld seams of a pipe, while the second type of support in the slots 114 is suitable, for example, for cutting pipes or the like to length.

[0088] Finally, workpieces can also be clamped between the wheels 112a, 112b and the roller 136.

[0089] For all support variants, two or more work aids 10 can be used to support large workpieces (not shown). These could, for example, be used to support plasterboard for cutting.

[0090] From the above description, it has become clear that the present invention provides a work aid 10 that can be used for numerous different work situations. The work aid 10 is mobile and easy to transport. Furthermore, it is simple in design, inexpensive in construction, and comfortable and easy to understand in operation.

[0091] The claims filed now with the application and those filed later are without prejudice to the attainment of further protection.

[0092] Should a closer examination, particularly of the relevant prior art, reveal that one or another feature is beneficial to the purpose of the invention but not crucially important, then, of course, a formulation is already being sought that no longer contains such a feature, especially in the main claim. Such a subcombination is thus also covered by the disclosure of this application.

[0093] The references cited in the dependent claims indicate the further development of the subject matter of the main claim through the features of the respective subclaim. However, these are not to be understood as a waiver of independent, objective protection for the features of the referenced subclaims.

[0094] It should also be noted that the embodiments and variants of the invention described in the various embodiments and shown in the figures can be combined with one another as desired. Individual or multiple features are interchangeable. These feature combinations are also disclosed.

[0095] Features that were only disclosed in the description or individual features from claims that comprise a plurality of features can at any time be incorporated into the independent claim(s) as being of essential importance to the invention in order to distinguish them from the prior art, even if such features were mentioned in connection with other features or achieve particularly favorable results in connection with other features.

[0096] Thus, all features presented in the general description of the invention, the description of the exemplary embodiments, the following claims, and the figures can be essential to the invention both individually and in any combination. These features or combinations of features can each form the basis of an independent invention, the right to claim which is expressly reserved. Individual features from the description of an exemplary embodiment do not necessarily have to be combined with one or more or all of the other features specified in the description of this exemplary embodiment; in this regard, each sub-combination is expressly disclosed. Furthermore, physical features of a device can be reformulated to also be used as method features, and method features can be reformulated to be used as physical features of a device.Such a reformulation is therefore automatically disclosed. Bezugszeichenliste

[0097] 10Working aid according to the invention 12Stand 14Stand element 16Support 18First stand part 20Second stand part 22Third stand part 24Opening 26Bolt 28Splint 30Stop 32Openings 34Head of the third stand part 22 36Threaded rod of the support 16 38Bolt 39Opening 40Splint 42Stop 44Openings 46, 48Securing screws 50Lock nut 52Feet 54Support element 56Standing surface 58Bevels of the support elements 54 60Guide 62a, 62bPlates, legs 64Web 66Enclosure for the support element, pockets 67Clamp 68Screw, axle 70Toggle nut 72Foot 74Buffer 76Quiver 78Base 80Base plate of the base 78 82Flanges 84Screw connections 85Buffers 86Opening 88a, 88bSide surfaces 90a, 90bMountings 92Side surfaces 94Long nut 96Elongated holes 98Axles 100One side of the legs 102 102Legs 104Other side of the legs 102 106Threaded rod 108, 110Nuts 112a, 112bWheels,First rotatable elements 114 Gap 116 Gap 118 Sheet 120 Shelves 122 Screw connection 124 Stop 126 Threaded rod 128 Knurled nut 130a, 130b Support 132 Slotted hole 134 Swivel element 136 Roller, second rotatable element 138 Axle 140 Slotted holes of supports 130a, 130b 142 Knurled nut 144 Lower end of supports 130a, 130b 146 Upper end of slotted hole 132 148 Cover, cover plate 150 Central horizontal section of cover 148 152a, 152b Inclined sections of cover 148 154 Threaded rods 156 Projections 156 158Central opening of the cover 148 160Pressure stamp 162Buffer element 164Threaded rod 166Nut DOpening of the guide 60 LLongitudinal axis,

Claims

1. A work aid (10) comprising a stand (12) having a longitudinal axis (L), wherein a stand element (14) for placing the work aid (10) on a floor and a support (16) for a workpiece are arranged on the stand (12), wherein the stand element (14) has at least three feet (52) which are arranged to be pivotable with respect to the longitudinal axis (L) from a pivoted-out position to a pivoted-in position, wherein the feet (52) are received in corresponding guides (60), characterized in thatthe feet (52) have an elongated hole through which an axis (68) of the respective guides (60) extends for pivoting the foot (52) received in the guide (60), wherein the guides (60) have a support (66) with respect to the axis (68) between the longitudinal axis (L) and the axis (68) below the corresponding foot (52) arranged in its pivoted-out position to prevent the foot (52) from pivoting, and wherein the guides (60) have a support (64) with respect to the axis (68) opposite the longitudinal axis (L) above the corresponding foot (52) arranged in its pivoted-out position to prevent the foot (52) from pivoting, so that the stand of the work aid (10) on a floor is particularly secure even when subjected to high loads from the workpiece.

2. Working aid (10) according to claim 1, characterized in that the feet (52) are designed to be fixable in the swung-out position and / or in the swung-in position.

3. Working aid (10) according to claim 2, characterized by that the guides (60) have, with respect to the longitudinal axis (L), above and below the axis (68), an opening (D) for the passage of the corresponding foot (52) in its pivoted-in position and / or that the feet (52) in the swung-out position are inserted into pockets (66) on the stand element (14) and / or that the feet (52) in the swung-out position rest positively on the stand element (14).

4. Working aid (10) according to claim 2 or 3, characterized by that a fixing means (70) is arranged on the axis (68), which is preferably designed as a nut for clamping the foot (52) in the guide (60), and / or that the guide (60) has two legs (62a, 62b) which run plane-parallel, wherein the foot (52) is preferably designed as a sheet metal part and / or thaton the stand (12) there are stops for the feet (52) in their pivoted-out position, wherein the stops are preferably surrounded on all sides (66) by the corresponding guide (60).

5. Working aid (10) according to one of the preceding claims, characterized by that the stand (12) is designed to be telescopic with at least one stand part (20, 22) running in another stand part (18, 20) and / or that the stand (12) is led (72) out to the ground via the guides (60).

6. Working aid (10) according to claim 5, characterized by thatthe stand part (20, 22) running in the other stand part (18, 20) has a plurality of equally spaced openings (32, 44) and in the other stand part (18, 20) there is an opening (24) through which a bolt (26, 38) can be pushed, wherein the bolt (26, 38) is preferably designed to be securable (28, 40) and preferably has a stop (30, 42) and opposite the stop (30, 42) an opening (39) for a securing pin (28, 40), and / or that a stand part (22) has a thread in which a threaded rod (36) is arranged, wherein a nut (50) is preferably arranged on the threaded rod (36) for locking against the stand part (22).

7. Working aid (10) according to one of the preceding claims, characterized in thatthe support (16) has two first rotatable elements (112a, 112b), wherein it is preferably provided that the distance between the first rotatable elements (112a, 112b) is designed to be selectively adjustable (94) and / or that the axes (98) of the two first rotatable elements (112a, 112b) lie on one line or on two different lines, wherein in particular there are four first rotatable elements (112a, 112b), wherein two first rotatable elements (112a, 112b) each lie on a common axis (98) and the two axes (98) are arranged parallel and spaced from one another.

8. Working aid (10) according to claim 7, characterized by thata pivoting element (134) on which a second rotatable element (136) is arranged, wherein the second rotatable element (136) is arranged such that it can be pivoted by means of the pivoting element (134) from a rest position below the support surface of the first rotatable elements (112a, 112b) into a working position above the support surface of the first rotatable elements (112a, 112b), wherein the rest position and / or the working position are preferably designed to be fixable (128), and / or that a cover (148) which can be arranged and removed optionally above the first rotatable elements (112a, 112b), preferably designed as a cover plate.

9. Working aid (10) according to claim 7 or 8, characterized by that the first rotatable elements (112a, 112b) and / or the second rotatable element (136) are designed as a wheel or roller and / or thatthe pivoting element (134) has two supports (130a, 130b), in each of which one, preferably two, elongated hole guides (132, 140) are arranged, and / or that the cover (148) has an opening (158) for fastening a pressure stamp (160), which is preferably provided with a buffer element (162).

10. Working aid (10) according to claim 9, characterized by that the supports (130a, 130b) are pivotably arranged on an axis (126) of the support (16) and / or that the supports (130a, 130b) rest on two shelves (120) in the rest position of the pivoting element (134) and are accommodated between the shelves (120) in the working position, wherein the shelves (120) preferably surround the supports (130a, 130b) in a form-fitting manner and / or that the supports (130a, 130b) in the working position extend upwards beyond the second rotatable element (136) with respect to the longitudinal axis (L).

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