Sliding guide with a guide profile and a lockable sliding carriage

Abstract

Sliding guide with a guide profile (10) and a sliding carriage (20) on which a locking bolt (26) is arranged for engaging in at least one locking bore (34) which defines a predetermined position of the sliding carriage (20) on the guide profile (10), characterized in that at least one fixable detent (30) is arranged in or on the guide profile (10) which provides the locking bore (34).

Description

[0001] The invention relates to a sliding guide with a guide profile and a sliding carriage on which a locking pin is arranged for locking in at least one locking bore, which defines a predetermined locking position of the sliding carriage on the guide profile.

[0002] Such sliding guides are used in a variety of manual adjustments, for example, in connection with height-adjustable devices such as screens or display or information panels. They are also used, for example, for machine stops or for positioning sensors, etc. Pipes are often used as profiles, and the sliding carriage has clamping jaws that grip the pipe. The clamping jaws can be clamped to the pipe with a clamping screw, optionally with a hand lever or handwheel, thereby securing the sliding carriage. The clamp can be easily released, the sliding carriage moved, and secured in the new desired position by retightening the clamping jaws.

[0003] To easily and reproducibly locate the positions to be adjusted, it is known to equip the sliding carriage with a locking pin that can be moved transversely to the sliding direction and can be engaged in a locking hole formed in the guide profile. Such locking holes can be provided at various locations in the guide profile, allowing a plurality of locking positions to be predefined for the sliding carriage.

[0004] The disadvantage is that the drilled holes cannot simply be closed again and therefore, once established, locking positions cannot be corrected in terms of their position or easily removed again.

[0005] It is an object of the present invention to provide a sliding guide of the type mentioned above, in which locking positions can be subsequently changed, removed and / or easily added without damaging the guide profile.

[0006] This problem is solved by a sliding guide having the features of the independent claim. Advantageous embodiments and further developments are the subject of the dependent claims.

[0007] A sliding guide according to the invention of the type mentioned at the outset is characterized in that at least one displaceable and fixable locking block is arranged in or on the guide profile, which provides the locking bore.

[0008] At least one locking block can be moved in or along the guide profile and fixed in the desired position. It then provides the locking hole into which the locking pin of the sliding carriage can engage, defining the predefined locking positions. The desired position can be easily adjusted by loosening the locking block and moving it again. Furthermore, multiple locking blocks can be used to define any number of locking positions along the guide profile. If a particular locking position is no longer required, the corresponding locking block can be removed.

[0009] In an advantageous embodiment, the guide profile has an open longitudinal slot. For example, the guide profile can be designed as a hollow profile with a C-shaped cross-section, wherein the at least one locking block is arranged within the guide profile. For this purpose, the at least one locking block can preferably have a cuboid-shaped base body with a protruding guide web that projects into the longitudinal slot. More preferably, the locking bore is formed in the guide web. In this way, the locking blocks are guided within the guide profile without potentially protruding beyond the guide profile and coming into conflict with the guide of the sliding carriage. The guide web located in the longitudinal slot also increases the stability of the guide profile, since it is less easily compressed in the area of ​​the locking block.In this design, the locking blocks provide their locking holes on the guide profile in a similar way to a hole drilled directly into the guide profile. Thus, sliding carriages with locking pins, which are already available for use with directly drilled guide rails, can also be advantageously used in the sliding guide according to the invention.

[0010] Further preferably, the guide bar is beveled on both sides, starting from the locking hole. A spring-loaded locking pin is thus raised toward the locking hole when the sliding carriage is pushed and engages in the locking hole.

[0011] In order to be able to fix the locking block in the desired position, in a further advantageous embodiment it has a clamping device which is formed, for example, by a threaded pin that is screwed into a threaded hole in the locking block. Particularly advantageously, the locking hole merges into the threaded hole. In this case, a tool, for example an Allen key or a multi-function wrench, can be inserted through the locking hole to loosen the threaded pin or to screw the locking block out of the locking block and press it against an inner wall of the hollow profile to fix it. The hollow profile of the guide rail can advantageously be reinforced in the area where the threaded pin rests to prevent it from being deformed by the threaded pin. For example, a web in the hollow profile on the side opposite the longitudinal slot can be designed as a reinforcement.

[0012] In a further advantageous embodiment of the sliding guide, the sliding carriage has clamping jaws that grip the guide profile and can be clamped against each other. For this purpose, the clamping jaws can, for example, have screw eyes through which a clamping screw passes. Such a sliding carriage can be fixed in position at or outside of the locking positions by tightening the clamping screw and clamping the clamping jaws on the guide profile. The locking blocks serve to define a locking position, but are not necessarily designed to absorb forces acting on the sliding carriage during use of the sliding guide. The locking block can be made of metal, but also of plastic, particularly when using a clampable sliding carriage.

[0013] In a further advantageous embodiment of the sliding guide, the locking pin is mounted on one of the clamping jaws so that it can be moved transversely to the sliding direction of the sliding carriage. The locking pin can advantageously be formed on a locking screw, for example, at its tip, and can then be moved by turning the locking screw. It can be moved into or out of the locking hole by turning the locking screw in order to release the locking in the locking hole.

[0014] Alternatively or additionally, the locking pin can be mounted on a slide bearing and preloaded by a spring force. This allows it to automatically engage the locking hole. Such a spring-loaded slide bearing can also be combined with the locking screw. In this case, a locking function is provided, which can be secured or released again with the locking screw.

[0015] The invention is explained in more detail below using an exemplary embodiment and the accompanying figures. The figures show: Fig. 1 a spatial representation of a sliding guide with a guide profile and a guide carriage; Fig. 2 a side view of the guide carriage according to Fig. 1; Fig. 3a, b two different views of a locking block of the sliding guide according to Fig. 1; Fig. 4 an exploded view showing the sliding guide of the Fig. 1 in a side view; and Fig. 5 a side view of the sliding guide of the Fig. 1 in a composite state.

[0016] The figures show an exemplary embodiment of a sliding guide in various views. For reasons of clarity, not every element in each figure is provided with a reference symbol.

[0017] Fig. Figure 1 initially shows the sliding guide in a spatial overview. The sliding guide has a guide rail 10 that guides a sliding carriage 20 that can be moved longitudinally. Locking blocks 30 are arranged at various, freely definable positions in the guide rail 10. Their function and interaction with the sliding carriage 20 are explained in more detail below.

[0018] In the example shown, the guide rail 10 is a C-shaped profile in cross-section, the outer shape of which is that of a tube with a longitudinal slot 11. To reinforce the edges of the longitudinal slot 11, this area is reinforced inwardly on each side of the longitudinal slot 11 by a bead 12. A web 13 is arranged on the inside of the profile opposite the longitudinal slot 11.

[0019] Fig. Figure 2 shows the sliding carriage 20 in a side view, separated from the guide rail 10. Two clamping jaws 22 are arranged on a mounting flange 21, which serves to secure elements or devices guided by the sliding guide. These clamping jaws 22 engage around the guide rail 10. On the side opposite the mounting flange 21, the clamping jaws 22 are not connected to each other, but rather separated by a gap so that they can be clamped against each other. For this purpose, the clamping jaws 22, at their end opposite the mounting flange 21, merge into screw eyes 23, through which a clamping screw 24 can be passed.

[0020] In the Fig. 2, the clamping screw 24 is shown separately. Instead of a hexagon nut, a lever 25 is provided here, for example, in which a thread is formed or into which a threaded insert is pressed. Using the clamping screw 24 and the lever 25, the clamping jaws 22 are clamped against each other, allowing the sliding carriage 20 to be clamped at any location along the guide rail 10.

[0021] In alternative embodiments of the sliding guide, the guide rail 10 can have an outer profile other than the approximately circular one shown here. The receiving profile of the sliding carriage 20 is correspondingly adapted to the outer profile of the guide rail. Furthermore, it is understood that in alternative embodiments of the sliding carriage 20, other fastening means for the device to be guided can be arranged or formed instead of a mounting flange 21. In the illustrated embodiment, the mounting flange 21, the clamping jaws 22, and the screw eyes 23 are formed integrally from a single element, which can be a plastic injection-molded part or made of metal, e.g., aluminum or zinc, optionally manufactured using a die-casting process.

[0022] Furthermore, a locking pin 26 is arranged on one of the clamping jaws 22 of the sliding carriage 20, which extends into the receiving area. In the example shown, the locking pin 26 is formed on a tip of a locking screw 27, which can be moved into or out of the receiving area of ​​the sliding carriage 20 using a handwheel 28. In this case, it can be provided that the locking pin 26 is additionally guided displaceably in the locking screw 27 and is spring-loaded in the Fig. 2. The locking bolt 26 can be pressed into the locking screw 27 in the direction of the handwheel against the spring force.

[0023] The locking bolt 26, in conjunction with the locking block 30, serves to lock the sliding carriage 20 in predetermined locking positions, in which the sliding carriage 20 is then locked and, if necessary, can be additionally fixed using the clamping screw 24.

[0024] In the Fig. 3a and Fig. 3b, the locking stone 30 is according to Fig. 1 separately in a spatial representation ( Fig. 3a) or a sectional view ( Fig. 3b) shown in more detail.

[0025] The locking block 30 has a base body 31 that fits precisely into the interior of the guide rail. In this exemplary embodiment, the base body 31 is cuboid-shaped. A guide web 32 is formed on an upper side of the base body 31, which, when the locking block 30 is inserted, projects into the longitudinal slot 11 of the guide rail 10. The guide web 32 is flattened on both sides, forming bevels 33. A locking bore 34 is provided centrally in the guide web 32, which runs through the entire base body 31. The locking bore merges into a threaded bore 35 on the side opposite the guide web 32. A threaded pin 36 is inserted into this threaded bore 35 when inserted into the guide rail 10, which projects downwards (in the illustration of the Fig. 3b) can optionally be provided with a point and has a tool holder on the upward-facing side, e.g. a hexagon socket or an internal multi-tooth.

[0026] In the Fig. 4 and Fig. 5 shows a cross section through the sliding guide, where Fig. 4 the individual elements are shown separately in the form of an exploded view and Fig. 5 shows the assembled state. Fig. 4, as a special feature, the locking stone 30 is shown twice, once in the manner of an exploded view outside the sliding carriage 20 and once duplicated in its position within the sliding carriage 20.

[0027] As the Fig.5 shows, one or more of the locking blocks 30 are pushed into the guide rail 10 and protrude with their guide web 32 into the longitudinal slot 11 of the guide rail 10. When the locking block 30 has been brought into its desired position, the threaded pin 36 can be screwed downwards out of the base body 31 through the longitudinal slot 11 and through the locking hole 34 using a suitable tool, for example an Allen key or multi-tooth wrench, until it sits on the guide web 32 and clamps the base body 31 firmly within the guide rail 10. The base body 31 then rests on the beads 32 on its upper side and is clamped on its underside against the guide web 32 using the threaded pin 36. In this defined locking position, the locking bolt 26 then engages in the locking hole 34, whereby the position of the sliding carriage 20 is fixed at this locking position.

[0028] If the locking pin 26 can be pressed into the locking screw 27 under spring force, the locking position is automatically assumed when the sliding carriage is moved by first pressing the locking pin 26 along the run-up slopes 33 and then clicking into the locking hole 34 under spring force. To release the guide carriage 20 from the locking position, the locking pin 26 can be lifted out of the locking hole 34 using the handwheel 28 and the locking screw 27.

[0029] With the aid of the locking blocks 30, any number of locking positions can be defined along the guide rail 10, the position of which can also be subsequently adjusted by loosening the threaded pin 36. List of reference symbols 10 Leadership profile 11 Longitudinal slot 12 profile bead 13 jetty 20 guide carriages 21 Mounting flange 22 clamping jaw 23 screw eye 24 clamping screw 25 levers 27 Locking screw 26 locking bolts 28 Handwheel 30 Rest Stone 31 basic bodies 32 guide bar 33 Starting slope 34 locking hole 35 threaded hole 36 threaded pin

Claims

[1] Sliding guide with a guide profile (10) and a sliding carriage (20) on which a locking pin (26) is arranged for engaging in at least one locking bore (34) which defines a predetermined position of the sliding carriage (20) on the guide profile (10), characterized by that in or on the guide profile (10) at least one fixable locking block (30) is arranged, which provides the locking bore (34). [2] Sliding guide according to claim 1, wherein the guide profile (10) has an open longitudinal slot (11). [3] Sliding guide according to claim 1 or 2, wherein the guide profile (10) is a hollow profile with a C-shaped cross-section, wherein the at least one locking block (30) is arranged within the guide profile (10). [4] Sliding guide according to claim 2 and 3, wherein the at least one locking block (30) has a cuboid-shaped base body (31) with a protruding guide web (32) which projects into the longitudinal slot (11). [5] Sliding guide according to claim 4, wherein the locking bore (34) is formed in the guide web (32). [6] Sliding guide according to claim 5, wherein the guide web (32) is bevelled on both sides starting from the locking bore (34). [7] Sliding guide according to one of claims 1 to 6, wherein the locking block (30) has a clamping device in order to be clamped on or in the guide profile (10) at a desired position. [8] Sliding guide according to claim 7, wherein the clamping device is a threaded pin (36) which is screwed into a threaded bore (35) of the locking block (30). [9] Sliding guide according to claim 8, wherein the locking bore (34) merges into the threaded bore (35). [10] Sliding guide according to one of claims 1 to 9, in which the sliding carriage (20) has clamping jaws (22) which engage around the guide profile (10) and which can be clamped against one another. [11] Sliding guide according to claim 10, wherein the clamping jaws (22) have screw eyes (23) through which a clamping screw (24) passes. [12] Sliding guide according to claim 10 or 11, wherein the locking bolt (26) is mounted on one of the clamping jaws (22) so as to be displaceable transversely to a sliding direction of the sliding carriage (20). [13] Sliding guide according to claim 12, wherein the locking bolt (26) is formed on a locking screw (26) and is displaceable by the locking screw (27). [14] Sliding guide according to claim 12 or 13, in which the locking bolt (26) is slide-mounted and is pre-tensioned by spring force.

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