Holding device for a pull rope arm
The bracket system for pull rope arms addresses the lack of exercise variability in existing training devices by allowing easy connection and adjustable positioning of the arm, creating a versatile and space-efficient training solution for home use.
Patent Information
- Application Number
- PCT/EP2024/083530
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-11-27
- Filing Date
- 2024-11-26
- Publication Date
- 2025-06-05
AI Technical Summary
Existing training devices with pull rope arms lack variability in exercise selection and are often optimized for specific muscle training, making them less suitable for home use where space and versatility are limited.
A bracket system that allows for easy, tool-free connection and detachment of a pull rope arm to various support elements, such as posts or walls, enabling adjustable positioning and rotation of the arm for enhanced exercise variability.
The bracket system provides a versatile and space-efficient training device that can be easily set up and adjusted for different exercises, catering to both home users and rehabilitation needs.
Smart Images

Figure EP2024083530_05062025_PF_FP_ABST
Abstract
Description
[0001] Bracket for a pull rope arm
[0002] Field of the invention
[0003] The present invention relates to a holder for a pull rope arm. It thus relates to the field of training equipment, since a pull rope arm according to the invention is generally intended for physical training. Strength training can be achieved by pulling on a rope end, which is guided through the pull rope arm. Strength training in which the arm itself is moved is also conceivable. However, the pull rope arm can also be used for other purposes.
[0004] Background of the invention
[0005] A wide variety of training methods and equipment are available. Some are optimized for use in sports facilities, such as commercial gyms. Other training devices, which are usually lighter and less expensive but also offer fewer features, are designed for home use.
[0006] US Patent 6,669,607 B2 offers a training device for performing dumbbell training. The dumbbell is not moved freely, but rather is guided by two pull ropes. The pull ropes, in turn, are guided by arms. These arms are movable around vertical axes. Thus, the distance between the arm ends can be adjusted horizontally. The disclosed training device enables modified dumbbell training. However, it does not allow for a great deal of variability in the selection of exercises.
[0007] US patent application 2014 / 0121071 A discloses a training device with a pulley. The exerciser works against movable weights. The pulley is guided over a pulley, which in turn is guided on a curved vertical bar. The training device allows a precisely designed strength exercise to be performed with the pulley. However, it also appears to be optimized for only one type of muscle exercise. While it seems feasible for a gym to set up a variety of such specially optimized training devices, this generally does not seem possible or attractive for home use.
[0008] US Patent 11,369,833 B2 discloses another apparatus in which training is performed by pulling on a rope. The counterweight is provided by round weight plates. Such face plates are also frequently used for dumbbells and are therefore generally available both in gyms and at home. The pull rope, which is used to work against the weights, is guided over a pulley whose height is adjustable. This provides increased, but still not great, variability in training. In particular, it is not intended to train both sides of the body simultaneously, or at least not to do so with two pull ropes. Furthermore, a separate frame is required, which is only useful for this device.
[0009] The present invention aims to offer an efficient holder with which an attractive training device can be produced, which is also particularly suitable for home users.
[0010] This object is achieved by a holder according to claim 1. Advantageous further developments are specified in the subclaims.
[0011] Further description
[0012] The invention relates to a mount for a pull rope arm. The pull rope arm is typically used as part of a training device. It can then be used for muscle training, for example, by pulling on the end of the rope against a weight. The mount can also be used for a pull rope arm that is moved during the training itself.
[0013] In accordance with the present invention, a training device is advantageously used that comprises a support part and can be connected to a pull rope arm (also referred to herein as an attachment), so that it can be used for the method described below. The bracket serves to connect the support part and the attachment.
[0014] Such an attachment should be individually manufactured, individually sold, and individually transportable. The attachment on its own does not constitute a fitness device. However, it can be mounted, for example, on a post. Mounted on the post, the attachment forms a training device for fitness training. The attachment should be easy to connect to a support element or part, such as a post. It should also be easy to detach. Preferably, both can be done without tools. From the perspective of a user of the training device, for example, from the perspective of an average athlete or rehabilitation patient, the attachment should be easy to connect and detach, preferably without tools. It may be interesting to offer the attachment together with a frame, even mounted on such a frame.
[0015] The support element can take on various forms. It may be sufficient to have suitable support elements on a wall at a suitable height. It is also conceivable to have suitable support elements on a wall bars, for example. It is also well conceivable to have suitable support elements on a door frame. Users will often use a training frame or training rack as the support element. Such a rack usually has vertical posts, for example four vertical posts arranged in a rectangle. The posts usually have a large number of holes running vertically in rows and can themselves serve as support elements or offer a convenient way to attach additional support elements.
[0016] The tool-free connection and release of the attachment from a support part, also referred to herein as a support element, can be achieved in various ways. A mechanical connection is generally advantageous. A female and a male element can act together as the first and second connecting elements.
[0017] Practical mechanical fasteners can, in principle, include hook-and-loop fasteners, magnetic fasteners, spring clips, snap fasteners, quick-release couplings, clamp locks, or even bayonet locks. A practical clamp lock, for example, might offer a cam mechanism that can be closed or opened by turning. A bayonet lock, for example, might offer a pin that is inserted into a groove and locked or unlocked by turning.
[0018] Since the support elements often have numerous holes, these can be used as the first connecting elements. For example, bolts can engage in the holes. Hooks or screws could also be used.
[0019] It is also sensible to use first, second and third connecting elements. The first and third connecting elements can be female and the second connecting element male. The first and third connecting elements can be of the same type. Both the support part and the attachment part can have a plurality of holes. These can be arranged as rows of holes. A hole in the support part can serve as the first connecting element and a hole in the attachment part can serve as the third connecting element. These connecting elements can be connected to one another by a second connecting element. This second connecting element can be a male one, for example in the form of a bolt (or a hook or a screw). Hole / bolt connections have generally proven advantageous within the scope of the present invention.
[0020] Bolts can also be provided with a locking mechanism, for example through an additional locking element, such as a plug-in wire, pin or cotter pin, or expediently also a spring pin and socket pin. These plug-in elements can be easily removed without tools to release the bolt again. Such a locking mechanism can also be a mechanism integrated into the bolt that fixes the bolt in the desired position, for example elements protruding from the bolt, such as pins or balls. These can be pushed outwards by a spring load. The bolt is preferably threadless and at least has no external thread, which makes it easier to handle. In this respect, a nut placed on a thread would not be understood as a locking mechanism for a bolt.
[0021] The bracket should therefore be able to connect the pull-cable arm to a suitable support. Typically, the pull-cable arm is mounted to a post using the bracket according to the invention. Such a post can have a round or square cross-section; rectangular or square posts are often used, or more precisely, those with a rectangular or square cross-section perpendicular to the main extension length.
[0022] It is useful if the bracket can be attached to a support in various positions, i.e., at least in a first or second position. For example, the bracket can be attached to a post at different heights. Many posts commonly used in training areas have rows of holes; the bracket can be attached to these rows of holes using a pin that engages these holes, making it easy to select a variety of positions on the post at different heights.
[0023] Within the scope of the invention, a pull cable section is to be guided to the bracket. This section originates from a pull point. From this pull point, a pull is exerted. This can be achieved, for example, by weights. It is also possible to provide elastic elements to apply the pull. It is possible and often expedient to guide a pull cable in one piece from such weights to the pull cable arm and also to the end of the pull cable arm. However, it is also possible to provide multiple pull cable sections. The term "pulley cable section" can therefore also refer to a single, complete pull cable.
[0024] The bracket should have a holding part and a guide part. It is often practical to design these as separate components, for example as separate components that can be connected and separated. The holding part of the bracket should completely or partially enclose the support or rest against it. As a rule, it is necessary for the bracket to touch the support at least tangentially. In the case of a support with a rectangular cross-section, the bracket will usually rest on at least one side. However, it is often also practical if the bracket rests positively on two or more sides of the support. In particular, it can be useful to enclose a support (particularly one with a rectangular cross-section) on all four sides. In this case, the bracket forms a kind of sleeve for the support.
[0025] The support element can be equipped with fastening elements to conveniently connect the bracket to the support. These fastening elements can be screws, for example, to fix the bracket to a wall. Tenons, which can engage with recesses in a post, can also be considered.
[0026] Within the scope of the invention, the guide part should be provided next to the support. For example, to the right or left of the support, or even in front of or behind it.
[0027] When a bracket is mounted on a support, the bracket defines the front of the support. It is often then advisable to position the guide element to the side, i.e., to the right or left of the support. In individual cases, it may also be appropriate to position the guide element in front of the support, so that from a perspective, it is positioned between the support and the pull cable arm.
[0028] It is advisable to attach the pull rope arm to the guide section. This allows the support section to be optimized for connection to a support, and the guide section to be optimized for supporting the pull rope arm, in addition to passing through the pull rope section or pull rope.
[0029] It has proven useful for the pull rope arm to be rotatable about an axis. In particular, a horizontal axis is considered. The pull rope arm should also preferably be rotatable 360 degrees about this axis.
[0030] It is therefore expedient if the pull rope arm can be rotated about a first horizontal axis. This can be the axis around which the pull rope arm is moved for training purposes. The pull rope arm can therefore be pushed upwards against a force or downwards against a force. One end of the pull rope arm - the end of the arm that is adjacent to the guide part - moves around this first horizontal axis. A further axis can be provided to change the spatial direction of this first horizontal axis. This can be a further axis that runs horizontally but perpendicular to the first axis. This is referred to herein as the second axis. It is advantageous if a rotation of a full 360° around this second axis is possible, although a smaller angle of rotation can also suffice, although an angle of at least 180° or 270° is desirable.
[0031] It is useful if the position of the arm relative to this axis can be fixed. This can be achieved, for example, by means of a perforated disc, also referred to as a locking disc, which can be secured with bolts or by other suitable means.
[0032] Especially with a rotating pull-rope arm, its solid guidance and support are very important. This guidance and support are designed to ensure high load-bearing capacity and minimal play, regardless of the pull-rope arm's position.
[0033] It is expedient to provide a front and a rear support point on the guide section. "Front" here refers to an orientation close to the user, which is then also close to the traction cable arm, i.e., adjacent to the traction section. This rear support point is therefore located farther from the user or farther from the traction cable arm. The traction cable arm is expediently connected to a support element that is supported by both a front support point and a rear support point. Additional support points can also be useful; for example, a plurality of support points or a continuum of support points between the front and rear support points can be provided.
[0034] It is advantageous if the rear support point is positioned so that, if the bracket is mounted on a post, it is behind the post, i.e., on the side of the post farthest from the user. The front support point, on the other hand, should be in front of the post, i.e., on the side closest to the user.
[0035] It is advantageous if the bracket has a front support plate and a rear support plate. The front support plate can contact the front of a post, and the rear support plate can contact the opposite rear of a post. The contact can be direct or indirect. For example, it may be useful to arrange sliding or guiding means between the support plates and the post.
[0036] It is particularly useful if the front support point is connected to the front support plate and the rear support point is connected to the rear support plate.
[0037] It is particularly expedient to provide a sleeve on the bracket - and in particular on its guide part. This sleeve can serve as a receiving part for support devices of the traction cable arm. In particular, it can be appropriate if the traction cable arm has a sleeve which is received essentially in a form-fitting manner by the corresponding sleeve of the guide part. This is expediently achieved by two coordinated tubular sleeves. This tubular construction allows an axis of rotation for the traction cable arm to run along the central axis of the tubes. This axis of rotation is expediently the described second axis. It may also be sufficient if, instead of a complete sleeve, in particular instead of the outer sleeve, two sleeve sections, i.e. pipe sections, are used, i.e. one pipe section close to the user and one further away from the user.
[0038] An outer guide sleeve expediently connects a front support plate and a rear support plate of the bracket. It is useful if the sleeve is welded to the support plates. An arrangement in which a pull rope feedthrough is provided on the guide part and the axis of rotation of the pull rope arm runs within the pull rope feedthrough is particularly useful. If the pull rope feedthrough is designed as a tube, it is particularly useful to arrange the axis of rotation on the central axis of this tube. However, it can also be offset from this axis. The axis of rotation of the pull rope arm is usually determined and identifiable by the type of bracket; if in doubt, it can also be more clearly identified by mounting the pull rope arm without the pull rope arm being part of the loaded bracket.
[0039] The guide section has a user-proximal end and a user-remote end. The pull rope bushing typically has a user-proximal end and a user-remote end, correspondingly. The user-proximal end is oriented toward the user and thus usually also toward the pull rope arm. The user-remote end is opposite the pull rope arm. It is advisable to provide a feed roller at the user-remote end of the guide section (and usually the pull rope bushing). This allows for low-friction and precisely defined guidance of the pull rope from the pull point to the bracket.
[0040] It is also useful for controlled and low-friction guidance of the traction cable if a pulley for the traction cable or a section of the traction cable is provided at the end closest to the user. Such a pulley allows the low-friction and controlled feeding of the section of the traction cable to the pull arm.
[0041] It is advisable to select the diameter of the pulley so that the traction cable is guided through the pulley arm at the same distance from at least two opposite walls, i.e., centrally. It is particularly useful to select the radius of the pulley so that it corresponds to half the width of the arm perpendicular to the pulley axis.
[0042] A particularly secure pulley guide is achieved by using a second pulley in addition to the first. The pulley axes are ideally parallel. Especially when the arm is rotatable and the pulley arm is to be used in a variety of positions, providing a second pulley ensures secure pulley guide in all positions.
[0043] It is also useful to provide a sleeve in the pull-rope bushing, and this sleeve can rotate within the pull-rope bushing, i.e., be pivotally mounted. When the arm rotates around the pull-rope bushing, it is desirable that no significant frictional forces occur in the pull-rope bushing. This can be achieved by using such a sleeve. The sleeve can be suitably mounted for this purpose, for example, with ball bearings.
[0044] It is often expedient to offer and / or deliver the mount not alone, but together with a pull rope arm, or at least to use it as a standalone mount. In this respect, a mount with a pull rope arm is also the subject of the present invention. The pull rope arm can also have an end closest to the user and an end farther from the user. It is expedient to also provide a guide roller at the end of the pull rope arm closest to the user. For example, during pulling exercises, the pull rope can be safely guided out of the end of the arm closest to the user.
[0045] It is not only expedient to use the holder according to the invention together with a pull rope arm, it is also expedient to offer and / or deliver it together with a support, or at least to use it naturally. The combination of pull rope arm holder and support results in a training device. An even more versatile training device is obtained if two pull rope arms are used, for example, one pull rope arm for training the left side of the body and one pull rope arm for training the right side of the body. Pull rope arms are very often used to train the arms, so a left pull rope arm can be offered for training the left arm and a right pull rope arm for training the right arm.
[0046] It is expedient to offer the bracket together with a support in the form of a substantially vertical rectangular post. The rectangular cross-section is obtained in a horizontal plane. Such a post has a front, a back, an inside, and an outside. The front is oriented toward the pull-cable arm. The inside and outside form the left and right sides of the post. If two posts are used for two pull-cable arms as described, the insides of the posts are oriented toward each other. The outsides of the posts, however, are oriented away from each other.
[0047] It has proven particularly useful if the guide part is arranged on the outside of a post.
[0048] It is useful if the holder with the pull rope arm is height adjustable, i.e. if the end of the arm can be mounted at different heights on the post and / or can be moved up or down on the post when mounted. Preferably, the pulling force on the pulling rope is applied in such a way that it does not counteract any change in height. In this respect, a holder with the pull rope arm and also a training device are of interest where the pulling force does not have to be worked against when adjusting the height of the arm. This can be achieved in a variety of technical ways. In particular, by supplying the pulling force from two opposite directions, e.g. by guiding the pulling force partly via a first pull rope section from above to the end of the arm and the pulling force partly via a second pull rope section from below to the end of the arm.The pulling force can be split 50:50. The portion of the pulling force applied from above should ideally be between 40% and 70% of the total pulling force applied to the mount. Applying more than 50% of the pulling force from above, for example, 60%, can further facilitate the height adjustment of the mount.
[0049] For this purpose, it has also proven useful within the scope of the present invention to guide the traction rope in a loop to the arm. One end of the loop is guided over an upper pulley and one end of the loop is guided over a lower pulley. The rope can be guided into the arm through pulleys. The loop can also be guided all the way to the user's end of the arm. A connecting element, such as a handle, can also be provided on the loop. Designing the traction rope as a loop, which is guided partly at the top and partly at the bottom, means that a pulley on the arm moves along the loop without any weight force being exerted. The traction rope can be made up of several pieces, and a loop can be connected using simple rope sections.
[0050] If, for example, the pull rope were guided only downwards and the pull rope was subjected to a corresponding weight load, an upward adjustment of the arm would only be possible against the force of gravity. In practice, the weights would then usually be removed from a weight holder before adjusting the arm, assuming one is provided in the system.
[0051] Further features, as well as advantages of the invention, will become apparent from the following drawings and the accompanying description. In the figures and the accompanying descriptions, features of the invention are described in combination. However, these features can also be encompassed by a subject matter according to the invention in other combinations. Each disclosed feature is therefore also to be considered as disclosed in technically reasonable combinations with other features. Some of the figures are slightly simplified and schematic.
[0052] Fig. 1 shows a perspective view of two brackets according to the invention with which pull rope arms are mounted to a training rack
[0053] Fig. 2 shows the same training device formed with two brackets in a frontal view
[0054] Fig. 3 shows this training device in a side view
[0055] Fig. 4 shows the training device in a first usage position
[0056] Fig. 5 shows the training device in a second usage position
[0057] Fig. 6 shows a plan view of a holder according to the invention for a pull rope arm, which is mounted on a post
[0058] Fig. 7 shows a front view of a bracket according to the invention for a pull rope arm mounted on a post
[0059] Fig. 8 shows the same bracket in a rear view
[0060] Fig. 9 shows the same bracket in a side view, showing the inside of the bracket
[0061] Fig. 10 shows the same bracket in a sectional side view, looking at the outside of the bracket
[0062] Fig. 11 shows an enlargement of the sectional view from Fig. 10
[0063] Fig. 1 shows two brackets according to the invention in a perspective view. These support pull rope arms and, together with them, form attachments mounted on a training rack. The first attachment 10A is visible on the right, and the attachment 10B on the left. The first attachment 10A is mounted on the first front post 12A, and the second attachment 10B is mounted on the second front post 12B. The posts 12A and 12B, together with the rear posts 14A and 14B, form four posts of a training rack. These posts are connected by upper cross braces 16 and lower cross braces 18. Training racks of this type are widespread and also popular with home users.
[0064] The first attachment 10A comprises a pull-rope arm or movable arm 20A. This is mounted on a joint 22A. The joint is mounted on the first post 12A with the bracket in the form of the sleeve 24A.
[0065] Attachment 10A also features a handle 26A. This handle allows for a variety of physical exercises, but does not need to be mounted. Attachment 10A also features a mandrel 28A. This mandrel can accommodate additional weight plates, but this is not required. Mandrel 28A also does not need to be mounted on arm 20A.
[0066] At the end of arm 20A is a pulley 30A, which can guide a pulley cable 32A. The pulley cable 32A is guided from the pulley 30A along the training rack to the weights 34A.
[0067] The training frame also features lower front outriggers 36A and 36B. These allow for alternative routing of the pull rope. The rope guides 38A and 38B are provided for this purpose. The training frame also features lower upper outriggers 36C and 36D. These allow for even further alternative routing of the pull rope. The rope guides 38C and 38D are provided for this purpose.
[0068] Fig. 2 shows the training device from the front. The view shows the right front post 12A and the left front post 12B. An upper cross brace 16 and a lower cross brace 18 are visible. The attachment 10A, which provides the movable arm 20A, is mounted on the right front post 12A. The attachment 10B, which provides the movable arm 20B, is mounted on the left front post 12B. The attachments are each mounted on support plates, plates 40A and 40B. Side panels are used for assembly, namely the outer side panel 42A and the inner side panel 42C for the movable arm 20A. Similarly, the outer side panel 42B and the inner side panel 42D are used for the movable arm 20B.
[0069] Fig. 3 shows a side view of the training device. The view is of the right front post 12A and the right rear post 14A. The structure, consisting of these posts and unspecified cross braces, is extended forward by the lower boom 36A and the corresponding upper boom 36C. These booms each carry cable guides: the lower one carries the cable guide 38A and the upper one carries the cable guide 38C. The movable arm 20A of the attachment 10A is held by the horizontally extending axis 44. The arm 20A can move in a vertical plane around this axis. Post 12A also lies (at least partially) in this plane.
[0070] The bracket in the form of the sleeve 24, which connects the attachment 10A to the post 12A, is height-adjustable on this post. It can be secured by connecting it to various recesses in the post 12A. For this purpose, the locking pin 46 is connected to the sleeve 24. Further height adjustment is provided by the row of holes in the side panel 42A. This row of holes allows the arm to be fixed at a specific angular position. The arm then drops down to the specified position and can be raised from this position. Alternatively, the upward angular movement of the arm can also be limited. Using the row of holes in the side panel 42A, the upper angular position of the arm can also be fixed. The arm can then be moved downward from this position for appropriate muscle exercises. This illustration also clearly shows the routing of the pull rope 32.A pull rope section 32A is connected to the weight block 34A. The pull rope is guided, among other things, over the upper deflection pulley 48. From this deflection pulley, the pull rope is guided to the feed pulley 50, which is located on the sleeve 24 and can guide the pull rope to the movable arm 20A. Another section of the pull rope is guided upwards by the lower deflection pulley 52 (not visible as a component in this side view, but recognizable by its function). This pull rope section is also guided to the sleeve 24. By providing at least one upper deflection pulley 48 and at least one lower deflection pulley 52, it is possible to form a rope loop in which a tensile force of the same magnitude acts upwards from the upper deflection pulley and downwards from the lower deflection pulley 52. By having the same tensile forces acting on the sleeve 24 from above and below, it is possible to move the sleeve up or down along the post 12A against very little resistance.
[0071] Fig. 4 shows a perspective view of a training device. Only the essential elements of the device are provided with reference numerals. Posts 12A, 12B, 14A, and 14B provide a frame. Two attachments according to the invention are mounted to this frame: attachment 10A on the right and attachment 10B on the left. Movable arms 20A and 20B extend from cuffs 24A and 24B, respectively. At the end of the arms, handles 64A and 64B are connected to the pull rope. Handle 64A is used to pull weight 34A upward against a tensile force, and handle 64B is used to pull weight 34B upward.
[0072] Both arms are movable in a vertical plane. They can be moved parallel to each other. The movement axes of arms 44A and 44B are accordingly oriented horizontally. These movement axes 44A and 44B are mounted approximately at chest height. The arms extend upward from these axes, so that the handles 64A and 64B are offered at approximately head height or above. Both arms can be fixed in this orientation (for this purpose, the described perforated plates of the side panels and corresponding bolts are used).
[0073] This setup is suitable for muscle exercises that particularly train the shoulder area through pulling movements from top to bottom.
[0074] Fig. 5 shows a training device with holders according to the invention in a different configuration. The movable arms 20A and 20B are mounted on holders in the form of cuffs 24A and 24B. The cuffs and the axes 44A and 44B provided on the cuffs are again mounted approximately at chest height. This time, however, the axes are not aligned horizontally. Accordingly, the arms 20A and 20B are moved out of the vertical planes. More precisely, the arm 20A is tilted outward from the vertical plane marked by the posts 12A and 14A. In this case, outward means to the right, i.e., such that the distance of the user-side arm end relative to the other arm 20B is increased. The arm 20B is tilted accordingly, i.e., to the left. Like the arms, the axes can be fixed in this position. For this purpose, rows of holes with engaging bolts are provided.
[0075] The arms are also oriented upwards, accordingly the handles 64A and 64B are located above the cuffs and approximately at head or shoulder height.
[0076] In this configuration, the pull rope arms mounted on the brackets allow for a different muscle workout. Again, the handles are pulled toward the body, but the direction of pull is not only from top to bottom, but also from outside to inside. Inside refers to locations approximately mid-plane between the left vertical plane, marked by posts 12B and 14B, and the right vertical plane, marked by posts 12A and 14A. Accordingly, different muscles are engaged and efficiently trained.
[0077] Fig. 6 shows a top view of a bracket according to the invention. The bracket has a guide part and a holding part, the holding part being provided in the form of the sleeve 24A. The bracket essentially corresponds to the one shown on the right post, post 12A, in Fig. 5. The position of the pull cable arm 20A also corresponds to the position of the arm shown there. In detail, the bracket 10 in Fig. 6 shows a slightly different design than the bracket in Fig. 5. However, the basic elements are identical.
[0078] In addition to the holding part in the form of the sleeve 24A, a guide part is provided on the holder. The pull cable 32 is fed to this guide part. The guide part itself is concealed in this view by the fixing disc 56. This fixing disc offers a plurality of holes into which the locking pin 58 can engage. In this way, the position of the arm 20A can be fixed relative to a rotational axis protruding from the plane of the paper. The passage 60 is provided in the area of this rotational axis. The cable 32 (or a cable section) is guided through this passage to the arm 20A. The cable is guided to the end of the arm so that one end of the cable 62 protrudes from the end of the arm closest to the user.
[0079] Fig. 7 shows a top view of the bracket illustrated in Fig. 6. It is mounted on the post 12A and carries the arm 20A. In this illustration, this arm 20A is directed vertically downwards so that it runs parallel to the post 12A. The arm is in turn held by the bracket 10 and in particular by the sleeve 24A, which serves as a holding part. The view again turns to the fixing disk 56. Corresponding to the different position of the arm 20A, the position of the locking bolt 58 has also changed. The cable 32 is guided through the clearly visible passage 60 into the open end of the arm 20A remote from the user. The sleeve 24A consists of a multitude of individual parts, of which the front plate 64 is visible here.
[0080] Fig. 8 shows a plan view corresponding to Fig. 7 from the opposite direction. Accordingly, one sees the rear side of the bracket 10, which includes the sleeve 24A as the holding part and additional parts located to the left of the post 12A as guide parts. The view is directed to the rear plate 66 of the sleeve 24A.
[0081] On the left side of the back plate 66, an annular support member 68 is provided for the cable guide 70. This support member 68 can also support the pivot axis for the arm 20A. It thus forms an essential part of the guide portion of the bracket 10.
[0082] Fig. 9 shows another top view of the holder according to the invention in the already known assembled configuration. The view is of the inner side, i.e., the side that, in the situation shown in Fig. 5, faces a corresponding arm 20A.
[0083] Clearly visible in this side view are the connecting bolts 72 that connect the front plate 64 and the rear plate 66. In this way, a holding part for a bracket can easily be formed from two plates and a number of bolts. Also shown is the locking bolt 74, which can engage in recesses in the post 12A to achieve easy height adjustment of the sleeve 24A.
[0084] Also clearly visible in this view is the fixing bracket 76. When the arm is rotated around the horizontal axis 44, it can be secured using the fixing bracket 76, or more precisely, the holes and corresponding bolts provided therein. This view also clearly shows the guidance of the traction cable 32 using the feed roller 50. The cable is fed in from above, largely vertically, and then deflected by 90 degrees using the feed roller 50 and fed into the bushing 70.
[0085] Fig. 10 shows a side view from the opposite side, i.e. from the outside. However, this view is a sectional view, which allows the precise cable routing to be seen more clearly. The cable 32 is guided over the feed roller 50 to the passage 70. It then runs through a channel surrounded by a sleeve 78. From there, the cable is guided to a first deflection roller 80. To make the cable routing even more precise, a second deflection roller 82 is provided opposite. From there, the pull cable section 84 is guided centrally in the arm 20A. It exits centrally from the end of the arm closest to the user, where a first guide roller 86 and a second guide roller 88 are provided for further guidance. In this way, the cable end is easy to grasp.
[0086] Fig. 11 shows an enlarged portion of the sectional view from Fig. 10. The view again moves from the outside to the side of arm 20A. The guide of the traction cable can be seen more clearly, with the traction cable 32 coming from above being deflected at a 90-degree angle by the feed roller 50. It is then guided into the passage 70 and continued on the front through the first deflection roller 80. In this case, the cable is deflected 90 degrees and then continues downwards. Since the position of arm 20A can vary, this is not typical; many other directions are also possible. Secure cable guidance is ensured by the opposite second deflection roller 82.The traction cable section 84 therefore always runs centrally in the arm, even when the arm is moved about its axis of movement (which runs parallel and close to the axis of the deflection pulley 80), for example, when it assumes a horizontal position or an upward position. Furthermore, this guide also allows the arm to rotate about the horizontal axis, which runs along the illustrated bushing 78.
[0087] To enable this rotation, the arm is attached to the fixing disc 56 via side walls – for example, the side wall 42A. This fixing disc can rotate 360 degrees. The disc itself is mounted on the front support plate 40. As can be seen in this enlarged view, the rotating sleeve 92 is provided within the feed-through sleeve 78. This rotating sleeve 92 can rotate within the feed-through sleeve 78 using suitable bearings, for example, plastic plain bearings. It can be firmly connected to the fixing disc 56 and is preferably firmly connected to it. This can be done, for example, by welding. In this way, a secure, rotatable guide of the fixing disc 56 is achieved. This is necessary because the arm 20A is intended to absorb and transmit large forces, but the training unit as a whole must remain rigid.For this purpose, the rotating sleeve can be supported over the entire length of the bushing or over a significant length of the bushing. Support can be provided directly or indirectly; for example, bearing elements can be provided between bushing 78 and rotating sleeve 92. In individual cases, a lubricant may be sufficient or even unnecessary.
[0088] The guidance therefore takes place over a substantial length of the feedthrough sleeve 78 and in particular over the entire width of the post 12A. Thus, there are support points that lie in front of the post 12A and support points that lie behind the post 12A. For example, there is a front support point 94A, against which the rotating sleeve 92 is supported from above against the feedthrough sleeve 78. Opposite, there is a front support point 94B. Correspondingly, at the rear, there is a rear lower support point 96A and a rear upper support point 96B. The exact number of support points is therefore not crucial; what is important is that there is at least one support point that is close to the tension arm and a support point that is significantly further away from the tension arm. For example, a support point close to the tension arm is the front support point 94A, and a corresponding support point farther from the tension arm is the support point 96A.
[0089] As can be clearly seen in this view, the fixing disc 56, together with the through-sleeve 78 and the rotating sleeve 92, forms essential parts of the guide part of the holder.
[0090] In this enlarged view, however, essential parts of the support part of the bracket are also clearly visible. These include, in particular, the support plate 40, which serves as the front support plate, and the corresponding support plate 90. These can enclose a post in a sandwich-like manner. The two plates are spaced apart by sleeves, with sleeve 98A at the bottom and sleeve 98B above. They are also firmly connected by bolts. The bolt 100A, which runs through sleeve 98A, can be seen at the bottom, and the bolt 100B, which runs through sleeve 98B, can be seen at the top.
[0091] To allow the bracket 10 to run more smoothly up and down the post, additional rollers are provided, namely the roller 102A at the bottom and the roller 102B opposite (on the front side of the post). At the top, correspondingly, the rollers 102C (front) and 102D (rear) are provided.
[0092] Plates 40 and 90, together with sleeves 98, bolts 100, and rollers 102, form essential parts of the support portion of the bracket. The support portion and guide portion can be designed as separate components, but are designed here as a single component, with plates 40 and 90 connecting these components, and sections of the plates belonging to the support portion or the guide portion, respectively. This concept makes it possible to produce a very stable and simultaneously easily rotatable arm. The rotatability is ensured both in terms of stability and in terms of reliable and precise guidance of the traction cable.
[0093] Therefore, within the scope of the present invention, it is also fundamentally interesting if a traction cable arm is supported by a fixing disc, and this fixing disc is firmly connected to a sleeve, typically a rotating sleeve. This rotating sleeve can then be accommodated and guided in a suitable manner, expediently by another
[0094] Sleeve, in particular a bushing. The bushing, in turn, can be suitably supported by the holder, and in particular by the holding part of the holder. Overall, it is clear how a practical device suitable for mass production can be produced inexpensively and is universally applicable. (practical-useful-sensible-good-in, as a rule)
[0095] List of reference symbols
[0096] 10 Bracket
[0097] 12 front posts
[0098] 14 rear posts
[0099] 16 upper cross brace
[0100] 18 lower cross brace
[0101] 20 movable arm
[0102] 22 joint
[0103] 24 cuff
[0104] 26 Handle
[0105] 28 Thorn
[0106] 30 Pull rope guide
[0107] 32 traction rope
[0108] 34 Weight
[0109] 36 booms
[0110] 38 Rope guide
[0111] 40 support plate
[0112] 42 side panels
[0113] 44 axis (horizontal)
[0114] 46 locking pin for cuff
[0115] 48 Upper pulley
[0116] 50 feed roll
[0117] 52 Lower pulley
[0118] 54 handles
[0119] 56 Fixing disc
[0120] 58 locking bolts
[0121] 60 Implementation
[0122] 62 rope ends
[0123] 64 front panel
[0124] 66 back plate
[0125] 68 annular support part
[0126] 70 Feedthrough 72 Connecting bolt
[0127] 74 locking bolts
[0128] 76 Fixing cheek
[0129] 78 Guide sleeve 80 First pulley
[0130] 82 second pulley
[0131] 84 traction cable section
[0132] 86 first leadership role
[0133] 88 second guide roller 90 rear support plate
[0134] 92 rotating sleeve
[0135] 94 front support point
[0136] 96 rear base
[0137] 98 sleeve
[0138] 100 bolts
[0139] 102 sliding roller
Claims
Claims 1 . Holder (10) for a traction cable arm (20), wherein the traction cable arm (20) can be used with the holder (10) on a support (12) and can be fastened to a support (12) in at least a first position, and a traction cable section is guided from a pulling point to the holder (10), wherein the holder (10) has a holding part (24) and a guide part (68) and the holding part (24) completely or partially encloses the support (12) and the guide part (68) is provided next to the support (12) and the traction cable section is guided through the guide part (68).
2. Holder (10) according to the preceding claim, wherein the pull cable arm (20) is attached to the guide part (68).
3. Holder (10) according to one of the preceding claims, wherein the pull cable arm (20) is rotatable about an axis.
4. Holder (10) according to one of the preceding claims, in which the guide part (68) has a front support point (94) and a rear support point (96) via which the pull cable arm is supported, wherein the front support point (94) is arranged close to the user and the rear support point (96) is arranged remote from the user and the pull cable arm (20) is connected to a support element which is supported by the front support point (94) and the rear support point (96).
5. Bracket (10) according to the preceding claim, which is designed for attachment to a support in the form of a substantially vertical post (12) and in which the front support point (94), when the bracket (10) is mounted on the post (12), is on the side of the pull cable arm (20) in front of the post (12), and in which the rear support point (96), when the bracket (10) is mounted on the post (12) is located on the side of the pull rope arm (20) facing away from the pull rope arm (20) behind the post (12).
6. A bracket (10) according to claim 5 or 6, which has a front support plate (40) and a rear support plate (90), and the front support point (94) is connected to the front support plate (40) and the rear support point (96) is connected to the rear support plate (90).
7. Holder (10) according to one of the preceding claims, in which a pull cable passage (60) is provided on the guide part (68) and the axis of rotation of the pull cable arm (20) runs within the pull cable passage (60).
8. Holder (10) according to the preceding claim, wherein the pull cable leadthrough (60) has an end near the user and an end remote from the user and wherein at least one feed roller (50) is provided at the end remote from the user.
9. Holder (10) according to one of the preceding claims, wherein a deflection roller (80) is provided at the end of the traction cable passage (60) closest to the user.
10. Holder (10) according to the preceding claim, wherein the diameter of the at least one deflection pulley (80) is selected such that the traction cable (32) is guided centrally through the traction cable arm (20).
11. Holder (10) according to one of the preceding claims, in which a second deflection roller (82) is provided.
12. Holder (10) according to one of the preceding claims with a pull rope arm (20), wherein the pull rope arm (20) has an end near the user and an end far from the user and wherein at least one guide roller (86) is provided at the end near the user.
13. A bracket (10) for a traction cable arm (20) used in conjunction with a support in the form of a vertically extending rectangular post (12), the post (12) having a front side, a back side, an inner side, and an outer side.
14. A bracket (10) according to the preceding claim, wherein the Guide part (68) is arranged on the outside of the post (12).
15. Holder (10) according to one of the preceding claims, in which a tensile force is exerted by the pulling point and it is not necessary to work against the tensile force to adjust the height of the holder (10).
Citation Information
Patent Citations
Removable lat pull-down seat for an exercise system
US11369833B2
Movable Pulley Systems, Methods and Devices for Exercise Machines
US20140121071A1
Barbell and dumbbell safety spotting apparatus
US6669607B2
Gymnastic pulling apparatus
DE4331733A1
Cable crossover exercise apparatus
US20070167299A1
Cited By
Articulating arm for exercise apparatus
US12728310B2
Articulating arm for exercise apparatus
US20260069919A1