Exercise machine

Abstract

The present invention relates to an exercise machine. The present invention includes a main frame equipped with a driving unit that generates an exercise load inside, and the main frame may be configured to accommodate or allow a side frame to be pulled out. A height adjustment rod (40) may be installed on the side frame. A flat section (42) and a curved section (41) are arranged continuously along the circumferential direction of the cross section of the height adjustment rod (40), and a plurality of fixing holes (45) may be formed in the flat section (42). A handle device (100) may be raised and lowered along the height adjustment rod (40), and a fixing pin (130) of the handle device (100) may be inserted into one of the fixing holes (45) to fix the height. Accordingly, the handle device (100) can be raised along a fixed lifting path (flat section (42)) formed in the height adjustment column, and when the handle device (100) is raised, it can be raised along a fixed path without changing direction or rotating arbitrarily.

Description

Technology Field

[0001] The present invention relates to an exercise machine, and more specifically, to an exercise machine in which a part can rotate and its shape can be varied. Background Technology

[0002] Generally, equipment used for strength training is designed to repeat the relaxation and contraction of muscles by pushing or pulling a lever connected to a weight of a set unit. Among such strength training equipment, there are various types of exercise machines, such as arm curl machines for bicep exercises, chest press or butterfly machines for chest exercises including the pectoralis major, and pull-up machines for back muscle exercises.

[0003] In particular, home training equipment that allows users to exercise at home without visiting a fitness center has recently become widely used. However, the strength training equipment exemplified earlier is bulky and requires a large amount of installation space, which poses a problem in that it is difficult to utilize as home training equipment.

[0004] To address this, technologies are being developed to reduce the volume of exercise equipment when not in use by folding or rotating parts of the equipment. For example, U.S. published patents US2020 / 0047027 (Priority 1) and US2019 / 0262652 (Priority 2) disclose a structure in which parts of the exercise equipment can be rotated to be folded when not in use.

[0005] The aforementioned prior art can provide various angles of motion by changing the height of parts such as arm structures. However, in order to change the height of the exercise equipment in this way, prior art patent 1 requires a large radius of rotation because the entire arm (206) must be rotated, and prior art patent 2 has the disadvantage that the structure for fixing the height of the slider (403) with a lock pin is very complex.

[0006] Of course, simple methods of fixing exercise equipment that moves up and down along height-adjustable columns with pins are also being used. However, home training equipment often has a rotatable height-adjustable column for the folding structure, and to achieve this, the height-adjustable column is made into a cylindrical structure. Since the exercise equipment (e.g., an arm structure) can easily rotate around the cylinder, there is a disadvantage in that it is not easy to accurately insert the pin into the fixing hole. Prior art literature

[0007] US Published Patent US2020 / 0047027 (Prior Art 1) US Published Patent US2019 / 0262652 (Prior Art 2) The problem to be solved

[0008] The present invention is intended to solve the problems of the prior art as described above. The objective of the present invention is to enable the arm system (handle device) of an exercise machine to be easily inserted into a height fixing hole while moving up and down along a specific path of a height adjustment column.

[0009] Another objective of the present invention is to enable the arm system to ascend and descend along another path even when it rotates relative to the height adjustment column. means of solving the problem

[0011] According to the features of the present invention for achieving the above-described purpose, the present invention includes a main frame equipped with a driving unit that generates an internal motion load, and the main frame may be configured to accommodate or allow a side frame to be pulled out. Additionally, a height adjustment rod may be installed on the side frame. The height adjustment rod has a flat section and a curved section arranged continuously along the circumferential direction of the cross section, and a plurality of fixing holes may be formed in the flat section. A handle device may be raised and lowered along the height adjustment rod, and the height may be fixed by inserting a fixing pin of the handle device into one of the fixing holes. Accordingly, the handle device may be raised and lowered along a fixed lifting path (flat section) formed in the height adjustment column, and the handle device may be raised and lowered along a fixed path without changing direction or rotating arbitrarily when raised and lowered.

[0012] In addition, the flat portion and the curved portion may each extend along the height direction of the height adjustment rod, and a plurality of the flat portions may be arranged on the height adjustment rod, and the curved portion may be arranged between the flat portions. Accordingly, the handle device may rotate relative to the height adjustment rod by making surface contact with the curved portion.

[0013] In addition, the planar sections may be arranged at regular intervals along the circumferential direction of the cross-section of the height adjustment rod, and the height of the fixing hole formed in the first planar section constituting the planar sections and the height of the fixing hole formed in the second planar section adjacent to the first planar section may be different from each other. In this way, the height intervals of each fixing hole are arranged closely, making it possible to adjust the height of the handle device more precisely.

[0014] Additionally, the flat portion may be recessed toward the center of the height adjustment rod more than the curved portion, and the left-right width of the flat portion may be greater than or equal to the width of the front portion of the fixing pin that is in close contact with the flat portion. Therefore, the fixing pin can move along a certain path without deviating to the outside of the flat portion.

[0015] In addition, a plurality of the aforementioned curved sections are arranged on the height adjustment rod, and each of the curved sections can form a part of a circular shape with the center of the cross-section of the height adjustment rod as the center of the circle. Accordingly, the handle device can rotate smoothly while encircling the height adjustment rod.

[0016] Additionally, the handle device may include a connecting body that surrounds the height adjustment rod and is rotatable relative to the height adjustment rod. A handle bar is coupled to the connecting body, and the handle bar may be positioned parallel to the connecting body or rotate in a direction perpendicular to the connecting body. At this time, a fixing pin may be disposed on the connecting body, and the fixing pin may be inserted into the fixing hole while moving linearly in the direction of the planar portion.

[0017] Additionally, the fixing pin may include a fixing lever exposed to the outside and a pin body connected to the fixing lever, and the pin body may be inserted into the fixing hole. Furthermore, the fixing pin may be provided with a fixing spring that provides elastic force to the pin body in the direction of the planar portion.

[0018] In addition, the handle device may be equipped with a bar locking device that hooks a part of the handle bar to maintain the handle bar in a state where it is rotated in a direction perpendicular to the connecting body. Effects of the invention

[0020] The exercise equipment according to the present invention, as examined above, has the following effects.

[0021] In the present invention, the handle device of the exercise equipment can be adjusted in height by moving up and down along a height adjustment column, and the handle device can move up and down along a fixed lifting path (flat surface) formed in the height adjustment column. Since the handle device moves up and down along a fixed path without changing direction or rotating arbitrarily, the fixing pin of the handle device can be easily inserted into the fixing hole, thereby improving the convenience of use of the exercise equipment.

[0022] In addition, in the present invention, a plurality of lifting paths (planar sections) may be arranged around the outer surface of the height adjustment column. Accordingly, when the handle device rotates relative to the height adjustment column, it can move up and down along another lifting path. Since the handle device can have various relative angles with respect to the height adjustment column, the user has the effect of being able to move at a wider variety of angles.

[0023] In addition, in the present invention, a flat surface and a curved surface are arranged continuously along the circumferential direction of the height adjustment column. The curved surface allows for smooth rotation of the handle device, and the flat surface can create a constant lifting path for the fixing pin. Therefore, even if the handle device rotates relative to the height adjustment column, the fixing pin for height fixation can always be easily inserted into the fixing hole.

[0024] In addition, in the present invention, fixing holes are arranged in each of two different planar sections, and the fixing holes can be arranged at different heights from the fixing holes in adjacent planar sections. In this way, the spacing of all fixing holes can be arranged closely, and thus the height of the handle device can be adjusted more finely.

[0025] In addition, in the present invention, the flat portion of the height adjustment column may have a shape that is recessed toward the center of the height adjustment rod. Since the fixing pin moves up and down within the recessed flat portion, it can move stably along a fixed path without deviating outside the flat portion. Therefore, there is an effect of improving the operability of the exercise equipment.

[0026] Furthermore, in the present invention, the fixing pin protrudes in the same direction as the handle device, allowing the user to easily operate the fixing pin. At the same time, since the fixing pin is located at the bottom of the handle device, the portion of the fixing pin that is obscured by the handle device and exposed to the outside is reduced, thereby enhancing the aesthetic appeal of the exercise equipment. Brief explanation of the drawing

[0028] FIG. 1 is a perspective view showing an embodiment of an exercise apparatus according to the present invention. FIG. 2 is a perspective view showing the side frame constituting the embodiment of FIG. 1 in a state where it is pulled forward. FIG. 3 is a perspective view showing the structure of a frame locking device constituting an embodiment of the present invention. FIG. 4 is a perspective view showing a handle device coupled to a height adjustment rod constituting an embodiment of the present invention. FIG. 5 is a perspective view showing a part of the structure of a height adjustment rod constituting an embodiment of the present invention. FIG. 6 is a cross-sectional view showing the cross-sectional structure of a height adjustment rod constituting an embodiment of the present invention. FIG. 7 is a cross-sectional view showing the cross-sectional structure of another embodiment of a height-adjustable rod constituting an exercise device according to the present invention. FIG. 8 is a conceptual diagram illustrating the movement of a fixing pin along a height adjustment rod constituting an embodiment of the present invention. FIG. 9 is a cross-sectional view along the line I-I' of FIG. 4. FIG. 10 is a perspective view showing a handle device forming an embodiment of the present invention in an upright position. FIG. 11 is a perspective view showing a handle device constituting an embodiment of the present invention rotated and in use. FIGS. 12 and FIGS. 13 are cross-sectional views showing the state before and after locking the rotation of the handle device by the bar locking device constituting an embodiment of the present invention. FIG. 14 is a perspective view showing another embodiment of a handle device constituting an exercise machine according to the present invention coupled to a height adjustment rod. FIG. 15 is a flowchart showing the process of fixing a side frame and a handle device constituting an embodiment of an exercise device according to the present invention in sequence. Specific details for implementing the invention

[0029] Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that in assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. Furthermore, in describing the embodiments of the present invention, if it is determined that a detailed description of related known components or functions would hinder understanding of the embodiments of the present invention, such detailed description is omitted.

[0030] In addition, terms such as first, second, A, B, (a), (b), etc., may be used when describing the components of the embodiments of the present invention. These terms are intended only to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by the terms. Where it is stated that a component is "connected," "combined," or "connected" to another component, it should be understood that the component may be directly connected or connected to the other component, but that another component may also be "connected," "combined," or "connected" between each component.

[0031] The present invention relates to exercise equipment, and more specifically, to an exercise equipment having a form in which a plurality of parts can be variable. Here, "variable" may mean that the overall shape of the exercise equipment changes as some parts rotate or slide. Through this variable structure, the user can fold the exercise equipment for storage and use the equipment at various angles, lengths, or heights.

[0032] The exercise equipment of the present invention includes a handle device (100), the height of which can be adjusted by moving up and down along a height adjustment rod (40). The user can fix the handle device (100) at a height of their choice and perform exercise using the handle device (100). Below, the structure of the present invention will be described focusing on the lifting and fixing structure of the handle device (100).

[0033] An embodiment of an exercise apparatus according to the present invention is illustrated in FIG. 1 and FIG. 2. FIG. 1 shows a state in which a side frame (30A, 30B) constituting the exercise apparatus is housed in a main frame (10), and FIG. 2 shows a state in which the side frame (30A, 30B) is withdrawn from the main frame (10).

[0034] The main frame (10) is fixed at the installation location, and the side frames (30A, 30B) can be withdrawn by moving in a straight line from the main frame (10). Additionally, the side frames (30A, 30B) can rotate while withdrawn from the main frame (10). Therefore, when a user uses the exercise equipment, (i) the side frames (30A, 30B) must be fixed so that they do not move in a straight line in the direction of being stored in the main frame (10), and (ii) the side frames (30A, 30B) must be fixed so that they do not rotate relative to the main frame (10). The rotational movement of the side frames (30A, 30B) can be locked by a frame locking device (50) to be described below.

[0035] For reference, 'locked' below means that the side frame (30A, 30B) or the handle device (100) is fixed so that it cannot rotate or move up and down, and 'unlocked' means that the side frame (30A, 30B) or the handle device (100) is in a state where it can rotate or move up and down.

[0036] The main frame (10) can be fixed to a wall (W). In FIG. 1, the main frame (10) can be seen installed at the corner of the wall (W). An upper plate (11) and a lower plate (13) can be placed at the upper and lower ends of the main frame (10), respectively. The upper plate (11) and the lower plate (13) have a plate-like structure, and a front plate (12) can be provided between them.

[0037] Here, the front plate (12) is a part that the user faces, and it may be composed of a mirror or have a display (17) installed on the front plate (12). In this embodiment, a display (17) is provided on the upper part of the front plate (12) to provide various screens to the user.

[0038] In this embodiment, the main frame (10) may have a shape having an internal installation space. For example, as shown in FIGS. 1 and 2, the main frame (10) may be in the shape of a triangular prism having a cross-section in the form of a right isosceles triangle. The main frame (10) may be positioned so that the part forming the right angle in the right isosceles triangle is located at the rear. When placing exercise equipment in an indoor space, if the rear of the main frame (10) is positioned at the corner of the installation location, the utilization of space can be increased.

[0039] Various components can be embedded in the installation space of the main frame (10). Therefore, the main frame (10) can be viewed as the main body of the exercise equipment. Heavy components are embedded in the installation space, and the main frame (10) may serve as a center of gravity to prevent the exercise equipment from tipping over. For example, the interior of the main frame (10) may include a drive unit (not shown) that generates an exercise load. The drive unit may include components such as a motor, a reduction gear, and a pulley for transmitting the exercise load of the drive unit. Since the motor, reduction gear, and pulley are mainly formed of metal and are relatively heavy components, they can be placed inside the main frame (10) to serve as a center of gravity.

[0040] As shown in FIG. 2, a fixed foot (14) may be provided at the bottom of the main frame (10). The fixed foot (14) may protrude downward from the lower plate (13), that is, toward the installation surface. Thus, the fixed foot (14) can support the exercise equipment. The fixed foot (14) may be composed of a leveler to adjust the height at which the fixed foot (14) protrudes toward the installation surface.

[0041] Side frames (30A, 30B) may be installed on the main frame (10). The side frames (30A, 30B) may be withdrawn from or stored in the main frame (10). When the side frames (30A, 30B) are stored in the main frame (10), the total volume of the exercise equipment is reduced, thereby reducing the volume occupied by the exercise equipment when it is not in use. Conversely, when the side frames (30A, 30B) are withdrawn from the main frame (10), the length of the protruding handle device (100) attached to the side frames (30A, 30B) increases, allowing the user to utilize a wider variety of exercise functions.

[0042] In this embodiment, the side frames (30A, 30B) may be configured as a pair. That is, the side frames (30A, 30B) may be configured as a first side frame (30A) and a second side frame (30B). For distinction, based on the drawing, the side frame on the left (30A, 30B) will be referred to as the first side frame (30A) and the side frame on the right (30A, 30B) will be referred to as the second side frame (30B).

[0043] The first side frame (30A) and the second side frame (30B) may be arranged to be stored in or withdrawn from the main frame (10). The first side frame (30A) and the second side frame (30B) may be arranged symmetrically on both sides centered on the main frame (10). Since the first side frame (30A) and the second side frame (30B) correspond to substantially the same configuration, the following description will be based on the first side frame (30A).

[0044] The first side frame (30A) can slide along the left side of the main frame (10) and be stored or protruded. For example, as shown in FIG. 1, the first side frame (30A) may be stored in the installation space of the main frame (10). Conversely, as shown in FIG. 2, the first side frame (30A) may be protruded diagonally from the left side of the front of the main frame (10). Although not illustrated, the first side frame (30A) may slide along an LM guide installed inside the main frame (10).

[0045] In this embodiment, the first side frame (30A) and the second side frame (30B) can be rotated with the vertical direction of the main frame (10) as the axis of rotation after being protruded from the main frame (10). For example, as shown in FIG. 2, the first side frame (30A) and the second side frame (30B) protruding from the main frame (10) can be rotated to be closer to each other. And by rotating the first side frame (30A) to be closer to the second side frame (30B), the user can make the handle device (100) of the first side frame (30A) and the handle device (100) of the second side frame (30B) be closer to each other according to their body structure.

[0046] Looking at the structure of the first side frame (30A), an upper body (31a) may be positioned on the upper part of the first side frame (30A), and a lower body (31b) may be positioned on the lower part. The upper body (31a) and the lower body (31b) may protrude side by side at different heights. In this case, the upper body (31a) may be part of a pull-up bar that allows a user to perform exercises such as pull-ups.

[0047] The upper body (31a) and the lower body (31b) are connected so that the first side frame (30A) can be approximately rectangular. Here, the front end of the upper body (31a) and the lower body (31b) can be connected by a height adjustment rod (40) to be described below, and the rear end can be connected by an axis (not shown) that serves as the rotation axis of the first side frame (30A). Additionally, an installation plate (35, see FIG. 3) on which a mirror or the like is installed may be installed between the upper body (31a) and the lower body (31b).

[0048] Although not illustrated, one embodiment of the present invention may be provided with a locking means to prevent the first side frame (30A) from sliding back into the main frame (10). For example, the locking means may be configured as a latch that slides vertically on the first side frame (30A) to prevent the sliding movement of the first side frame (30A). Alternatively, the locking means may be omitted, and a frame locking device (50) to be described below may restrict not only the rotation but also the sliding movement of the first side frame (30A).

[0049] A handle device (100) may be installed on each of the first side frame (30A) and the second side frame (30B). The handle device (100) may be a part that protrudes toward the user when the user exercises. The handle device (100) may include a connecting body (101) for fixing the handle device (100) to the height adjustment rod (40) of the first side frame (30A), and a handle bar (110) that is fixed to the height adjustment rod (40) by the connecting body (101). The specific structure of the handle device (100) will be explained again below.

[0050] Meanwhile, a wire (not shown) is embedded inside the handlebar (110), and a gripping part (not shown) may be connected to one end of the wire. When a user pulls the gripping part, the wire connected to the gripping part extends from the inside of the handlebar (110) to the outside, and when the user removes the force pulling the gripping part, the gripping part and the wire can return to the end of the handlebar (110).

[0051] The return of such a wire can be achieved by a load supply unit installed on the main frame (10). The load supply unit is composed of a motor and a reduction gear, and can supply a load to the wire in a direction that returns the wire to its original position, that is, into the inside of the handle bar (110).

[0052] In addition, the wire passes continuously through the main frame (10), the first side frame (30A), and the handle bar (110), with one end connected to the gripping part and the other end wound around the load supply part. At this time, a plurality of pulleys (123, see FIG. 4) may be arranged inside the main frame (10), the first side frame (30A), and the handle bar (110) to allow the wire to be stably unwound or wound. Alternatively, all or part of the wire may be installed so as to be exposed to the outside of the exercise equipment.

[0053] Referring to FIG. 2, the height adjustment rod (40) is erected vertically at the front of the first side frame (30A) and the second side frame (30B), and the handle device (100) described above can be installed on the height adjustment rod (40). That is, the connecting body (101) of the handle device (100) is coupled to the height adjustment rod (40), and when the connecting body (101) moves up and down along the height adjustment rod (40), the height of the handle device (100) can be varied.

[0054] First, looking at the structure of the height adjustment rod (40), the height adjustment rod (40) may be in the form of a hollow pipe. The wire described earlier may be stored in the internal space (43) of the height adjustment rod (40). The height adjustment rod (40) may serve as an axis for adjusting the height of the handle device (100).

[0055] Looking at the height adjustment rod (40) installed on the first side frame (30A), the upper and lower ends of the height adjustment rod (40) are respectively fixed to the upper body (31a) and lower body (31b) of the first side frame (30A), and can be in a rotatable state. Therefore, the height adjustment rod (40) can be rotated using a rotation axis formed in the upright direction, that is, the height direction. Here, the height direction can be the up-and-down direction when viewed with respect to the drawing.

[0056] When the height adjustment rod (40) rotates, the handle device (100) installed on the height adjustment rod (40) also rotates together to create various movement angles. However, after the handle device (100) is rotated to a movement angle desired by the user, it needs to be locked. This locking may be achieved by a fixing pin (130) or by a separate locking means.

[0057] Referring to FIGS. 4 and FIGS. 5, the structure of the height adjustment rod (40) is illustrated in detail. The height adjustment rod (40) can be extended in a long direction in the direction of elevation. Here, the direction of elevation refers to the up-and-down direction relative to the drawing, and can also be considered as the direction of gravity. Additionally, the height adjustment rod (40) can be installed between the upper body (31a) and the lower body (31b) in the height direction of the height adjustment rod (40).

[0058] In the height adjustment rod (40), a flat section (42) and a curved section (41) may be arranged continuously along the circumferential direction of the cross-section of the height adjustment rod (40). Additionally, a plurality of fixing holes (45) may be formed in the flat section (42). A pin body (135) of a fixing pin (130), which will be described below, may be inserted into the fixing hole (45) to allow the fixing pin (130) to be caught.

[0059] Referring more specifically to FIG. 5, an internal space (43) that penetrates in the vertical direction may be formed in the height adjustment rod (40). Although not shown, a fixing module or the like to prevent rotation of the height adjustment rod (40) may be installed in the internal space (43) of the height adjustment rod (40). The internal space (43) of the height adjustment rod (40) extends along the vertical direction of the height adjustment rod (40), and thus the top and bottom ends of the height adjustment rod (40) may each be open.

[0060] A curved portion (41) and a flat portion (42) may be disposed on the surface of the height adjustment rod (40). The curved portion (41) may be an arc shape having a predetermined radius. The flat portion (42) may be disposed at a position adjacent to the curved portion (41) and may be a flat structure. (i) The curved portion (41) may allow the connecting body (101) of the handle device (100) surrounding the height adjustment rod (40) to rotate smoothly relative to the height adjustment rod (40), and (ii) the flat portion (42) may serve as a path for the pin body (135) of the fixing pin (130) to be raised and lowered.

[0061] The curved portion (41) and the flat portion (42) can each be continuously extended along the height direction of the height adjustment rod (40). Accordingly, excluding the fixing hole (45), the cross-sectional shape of the height adjustment rod (40) can be identical along the length direction of the height adjustment rod (40). Since the curved portion (41) is continuously formed along the length direction of the height adjustment rod (40), the connecting body (101) can rotate smoothly while making surface contact with the curved portion (41) at any height. Additionally, the pin body (135) can be moved along a certain path by the flat portion (42).

[0062] In this embodiment, a plurality of flat sections (42) may be arranged on the height adjustment rod (40), and a curved section (41) may be arranged between the flat sections (42). Referring to FIGS. 5 and 6, the curved section (41) may be composed of a first curved section (41a), a second curved section (41b), and a third curved section (41c), and the flat section (42) may be composed of a first flat section (42a), a second flat section (42b), and a third flat section (42c). These may be arranged alternately with one another.

[0063] Looking at FIG. 6, the planar portion (42) can be seen as a portion formed by omitting a part of the curved portion (41). That is, line A in FIG. 6 is a virtual curve connecting the first curved portion (41a) and the third curved portion (41c), and the third planar portion (42c) can be formed at a location recessed inward from line A. Therefore, it can be seen that the planar portion (42) is formed by being recessed between the curved portions (41).

[0064] In other words, a plurality of the curved sections (41) are arranged on the height adjustment rod (40), and the curved sections (41) can each be seen as forming a part of a circular shape with the center of the cross-section of the height adjustment rod (40) as the center of the circle.

[0065] Accordingly, as shown in FIG. 6, the flat portion (42) may have a structure that is relatively recessed toward the center of the height adjustment rod (40) compared to the curved portion (41). If the flat portion (42) has a structure that is recessed compared to the adjacent curved portion (41), the pin body (135) of the fixing pin (130) can be stably raised and lowered along a certain path formed by the flat portion (42) without moving away from the flat portion (42).

[0066] The above planar sections (42) may be arranged at regular intervals along the circumferential direction of the cross section of the height adjustment rod (40). For example, the planar sections (42) may be arranged at 90-degree intervals with respect to the center of the cross section of the height adjustment rod (40). Alternatively, the planar sections (42) may be arranged at 30-degree or 60-degree intervals with respect to the center of the cross section of the height adjustment rod (40). When the planar sections (42) are arranged at regular intervals, the direction in which the handle device (100) extends may also be changed at regular intervals.

[0067] In this embodiment, the curved portion (41) and the flat portion (42) are each composed of three parts, but alternatively, the curved portion (41) and the flat portion (42) may be two or fewer or four or more. For example, looking at FIG. 7, it can be seen that the curved portion (41) is composed of the first to fourth curved portions (41a to 41d), and the flat portion (42) is also composed of the first to fourth flat portions (42b to 42d).

[0068] Alternatively, although not illustrated, the surface of the height adjustment rod (40) may be composed only of the flat sections (42) with the curved section (41) omitted. If a plurality of flat sections (42) are connected in succession, the cross-section of the height adjustment rod (40) may have a polygonal shape.

[0069] The width of the flat portion (42) may be greater than or equal to the width of the front portion of the pin body (135) of the fixing pin (130) that is in close contact with the flat portion (42). In this way, the front portion of the pin body (135) does not deviate from the interior of the flat portion (42) and can be stably raised and lowered along the flat portion (42). Fixing holes (45) may be formed in the flat portion (42). The fixing holes (45) may be hole structures formed by penetrating the flat portion (42). In this embodiment, the fixing holes (45) may be circular holes formed in the flat portion (42), holes of various shapes, or structures in which the surface of the flat portion (42) is recessed rather than holes.

[0070] The above fixing holes (45) may be arranged in multiple numbers along the planar portion (42). The height of the handle device (100) may be determined depending on which of the fixing holes (45) the pin body (135) of the handle device (100) is inserted into.

[0071] At this time, the height of the fixing hole (45) formed in the first planar section (42a) constituting the planar sections (42) and the height of the fixing hole (45) formed in the third planar section (42c) adjacent to the first planar section (42a) may be formed differently. Looking at FIG. 5, it can be seen that the fixing holes (45) formed in the first planar section (42a) and the fixing holes (45) formed in the third planar section (42c) have different heights. Also, referring to FIG. 8, the height of the fixing hole (45) formed in the first planar section (42a) constituting the planar sections (42) and the height of the fixing hole (45) formed in the third planar section (42c) adjacent to the second planar section (42b) may be formed differently. In this way, the height spacing of all the fixing holes (45) formed in the height adjustment rod (40) can be arranged closely, and thus the height of the handle device (100) can be adjusted more finely.

[0072] FIG. 8 illustrates an unfolded view of the height adjustment rod (40). For reference, K1 and K2 are actually continuous sections representing both ends of the height adjustment rod (40). FIG. 8 also shows a path along which the pin body (135) of the fixing pin (130) (omitted in FIG. 8) moves along the multiple flat sections (42) formed on the height adjustment rod (40). As illustrated, the pin body (135) can be inserted into the multiple fixing holes (45) formed in each of the flat sections (42). The pin body (135) may move away from the uppermost fixing hole (45, ①) among the fixing holes (45) formed in the first flat section (42a), move downward along the first flat section (42a), and be inserted into the fixing hole (45, ②) located at the bottom.

[0073] Additionally, the pin body (135) may move to an adjacent second planar section (42b). At this time, the pin body (135) may move to the second planar section (42b) via the first curved section (41a) and may be inserted into a fixing hole (45, ③) formed in the second planar section (42b). Since the surface of the first curved section (41a) is curved, the pin body (135) can move naturally along the first curved section (41a) without significant resistance.

[0074] And, the pin body (135) may move again to the third planar section (42c). The pin body (135), having moved away from the fixing hole (45, ③) formed in the second planar section (42b), may pass through the second curved section (41b), the first planar section (42a), and the third curved section (41c) in order and be positioned in the third planar section (42c). Then, the pin body (135) that has moved downward may be inserted into the fixing hole (45, ④) located at the bottom of the third planar section (42c).

[0075] The movement of the pin body (135) is achieved by the entire handle device (100), including the pin body (135), rotating relative to and moving up and down with respect to the height adjustment rod (40). The specific structure of the handle device (100) will be explained again below.

[0076] Referring to FIG. 3, a frame locking device (50) may be installed on the lower part of the first side frame (30A). The frame locking device (50) may lock the first side frame (30A) so that it does not rotate, or, conversely, unlock it so that it can rotate. The frame locking device (50) is installed on the lower part of the first side frame (30A), and as shown in FIG. 2, it may be provided on the lower part of the most protruding front end of the first side frame (30A).

[0077] The above-described frame locking device (50) may have a structure in which a mounting leg (55), linked to the rotation of a rotating lever (53), moves linearly and comes into close contact with the installation surface (ground). When the mounting leg (55) comes into close contact with the installation surface, the gap between the first side frame (30A) and the installation surface is eliminated, and the first side frame (30A) can be strongly fixed to the installation surface. When the first side frame (30A) is fixed to the installation surface by the frame locking device (50), the first side frame (30A) can be locked so that it cannot rotate.

[0078] Here, the rotation lever (53) rotates, and the seating leg (55) can move linearly in the up and down direction in conjunction with the rotation lever (53). Between the rotation lever (53) and the seating leg (55), there are conversion links (52, 54) that convert rotational motion into linear motion.

[0079] Looking closely at the structure of the frame locking device (50), the frame locking device (50) may be provided with a bracket (51). The bracket (51) may be fixed to an installation part (31c) that is bent from the lower body (31b). The installation part (31c) is provided in an up-and-down direction in which the seating leg (55) moves up and down, and the bracket (51) may be fixed to its surface. The bracket (51) is a flat plate structure and is a part that is fixed to the installation part (31c) and does not move.

[0080] A rotating lever (53) may be connected to the bracket (51). The rotating lever (53) is a part that is grasped and rotated by the user. When rotated counterclockwise with reference to FIG. 3, the first side frame (30A) can be locked, and when rotated clockwise, the first side frame (30A) can be unlocked. FIG. 3 shows the state in which the rotating lever (53) is rotated in the locked direction.

[0081] For reference, reference numeral 31d is a stopping part, which may be a part that limits the maximum rotation angle when the rotation lever (53) rotates in the unwinding direction. That is, when the rotation lever (53) comes into contact with the stopping part (31d), it can no longer rotate in the unwinding direction.

[0082] A conversion link (52, 54) may be provided between the rotation lever (53) and the bracket (51). The conversion link (52, 54) converts the rotational movement of the rotation lever (53) into the linear movement of the seating leg (55). To this end, the bracket (51) and the rotation lever (53), as well as the seating leg (55), may be connected to the conversion link (52, 54).

[0083] The above conversion links (52, 54) may include a first link (52) and a second link (54). The first link (52) is rotatably fixed to the bracket (51) on a first axis (H1), and the rotation lever (53) may be assembled to the first link (52) in a fixed form. The rotation lever (53) may be fixed with a fastener (53a). Therefore, when the rotation lever (53) is rotated, the first link (52) rotates together. As shown in FIG. 3, the first link (52) is composed of a pair, and the second link (54) may be placed between the pair of first links (52).

[0084] The second link (54) may be connected to the first link (52). The second link (54) is rotatably connected to the first link (52), and the second link (54) may be rotatably assembled to the first link (52) via a second axis (H2). Additionally, a seating leg (55) is connected to the second link (54) via a third axis (H3) so that it can be raised or lowered when the second link (54) rotates.

[0085] At this time, the first link (52) rotates with the fixed first axis (H1) as the axis of rotation, but since the second axis (H2), which is the axis of rotation of the second link (54), is fixed to the first link (52), which is the body being rotated, the axis of rotation of the second link (54) can become an axis that moves together with the rotation of the first link (52).

[0086] The above-mentioned seating leg (55) can be raised and lowered along the second link (54) in conjunction with the rotation of the rotation lever (53). When the seating leg (55) is lowered, it can be seated on the installation surface to support the first side frame (30A) so that it does not rotate. A seating foot (55a) may be provided at the bottom of the seating leg (55). The seating foot (55a) has a wider width than the seating leg (55), and in this embodiment, the seating foot (55a) is cylindrical. The entire seating foot (55a) or the surface of the seating foot (55a) may be made of a material with high friction, such as rubber, to prevent the entire seating leg (55) from slipping.

[0087] Next, the handle device (100) will be described. The handle device (100) may be a part that protrudes toward the user when the user exercises. In this embodiment, the handle device (100) may rotate relative to the height adjustment rod (40) and may also move up and down along the height adjustment rod (40). Alternatively, the handle device (100) may be configured to move only up and down without rotating relative to the height adjustment rod (40).

[0088] In FIG. 4, arrow A indicates the direction in which the handle device (100) rotates relative to the height adjustment rod (40) with the height direction of the height adjustment rod (40) as the axis of rotation, and arrow B indicates the direction in which the handle device (100) unfolds or folds from the height adjustment rod (40). At this time, the handle device (100) can be extended in a direction perpendicular to the height adjustment rod (40), and this state can be called the 'unfolded state'. Alternatively, if the handle device (100) rotates and extends parallel to the height adjustment rod (40), it can become the 'folded state'. Such a folded state is well illustrated in FIG. 10 and FIG. 15.

[0089] The handle device (100) is kept in a folded state before the user exercises, and when the user exercises, the handle device (100) can be rotated to extend in a direction perpendicular to the height adjustment rod (40).

[0090] Referring to FIG. 4, the handle device (100) can be raised and lowered along the height adjustment rod (40) and inserted into one of the fixing holes (45) of the height adjustment rod (40) to fix the height. The handle device (100), adjusted to a height desired by the user, can be used in a fixed state at the adjusted height.

[0091] Specifically, the handle device (100) may include a connecting body (101) that encloses the height adjustment rod (40). The connecting body (101) may be viewed as a type of bracket for fixing the handle device (100) to the height adjustment rod (40). The connecting body (101) is cylindrical in shape, and the height adjustment rod (40) can be inserted into an insertion space (101a) that penetrates the center.

[0092] A bar support (105) may be provided on the connecting body (101). The bar support (105) may be a plate-like structure extending from the connecting body (101). In this embodiment, the bar support (105) is configured as a pair, and a support block (102) may be disposed between the bar support (105) and the connecting body (101). That is, the support block (102) protrudes from the connecting body (101), and the bar support (105) may be connected to the support block (102). Of course, the connecting body (101), the support block (102), and the bar support (105) may be configured as a single connected part. Reference numeral 103 may be a fastener for securing the connecting body (101).

[0093] A pin housing (107) may be provided at a position below the bar support (105). The pin housing (107) may be a structure protruding from the connecting body (101). The pin housing (107) may protrude from the connecting body (101) in a direction perpendicular to the longitudinal direction of the connecting body (101). In this embodiment, the pin housing (107) protrudes in a direction parallel to the handle bar (110) when the handle device (100) is in an extended state.

[0094] The pin housing (107) has a cylindrical structure and may have an empty space formed inside. A fixing lever (131) and a pin body (135) constituting the fixing pin (130) may be installed in the pin housing (107). In this embodiment, since the pin housing (107) is positioned below the handle bar (110), the portion exposed to the outside may be reduced as it is obscured by the handle bar (110). Additionally, the installation direction of the fixing pin (130) is the same as the extended direction of the handle bar (110), so the user may operate the fixing pin (130) more easily.

[0095] A handle bar (110) may be connected to the bar support (105). The handle bar (110) may be in the shape of a rod that extends in one direction. A hollow space is formed inside the handle bar (110), and a wire may be extended through the hollow space. The wire may pass through the interior of the handle bar (110) and extend outward through a pulley portion (120) positioned at the end of the handle bar (110). As previously described, the wire may be fixed to a separate gripping portion, and the gripping portion may be spaced apart from or in close contact with the pulley portion (120). Alternatively, the gripping portion may be omitted, and the pulley portion (120) itself may serve as the gripping portion.

[0096] At one end of the handle bar (110), a connecting piece (112) connected to the bar support (105) may be provided. The connecting piece (112) may be rotatably connected to the bar support (105) by a bar connecting shaft (115). That is, the bar connecting shaft (115) may serve as the axis of rotation of the handle bar (110). The connecting piece (112) may be composed of a pair and each may be connected to the bar support (105) in an overlapping manner on the outside of the bar support (105).

[0097] A pulley section (120) may be provided at the opposite end of the handle bar (110). The pulley section (120) may allow a wire extending through the interior of the handle bar (110) to be smoothly drawn out to the outside and then drawn back in. To this end, a pair of pulleys (123) may be provided inside the pulley housing (121) constituting the pulley section (120). Then, the wire may be discharged into the discharge space (125) between the pair of pulleys.

[0098] The pulley portion (120) may be rotated. The pulley portion (120) may be rotatable relative to the handlebar (110). The pulley portion (120) may rotate in the direction of arrow C of FIG. 4, thereby reducing the load applied to the pulley portion (120) and the handlebar (110) and enabling movement in various directions.

[0099] The handle device (100) may be provided with a fixing pin (130). The fixing pin (130) is intended to fix the height of the handle device (100). The fixing pin (130) may be installed in a pin housing (107) extending from the connecting body (101) described above. The fixing pin (130) may be operated by a user, and the user may operate the fixing pin (130) to fix the height and direction of the handle device (100) or to release the fixed state.

[0100] The above fixing pin (130) may include a fixing lever (131) exposed to the outside of the pin housing (107). The fixing lever (131) may be a part that is substantially grasped by the user. Since the fixing lever (131) is exposed to the outside of the pin housing (107), the user can pull the fixing lever (131). Although not illustrated, a fixing spring may be provided inside the pin housing (107) to provide elastic force in the direction in which the fixing lever (131) is pulled toward the pin housing (107).

[0101] A pin body (135) can be connected to the above-mentioned fixing pin (130). Looking at the cross-sectional view in FIG. 9, the pin body (135) is shown inserted into the interior of the height adjustment rod (40). Although not shown, the pin body (135) can be connected to the fixing lever (131) and moved together, and can receive elastic force in the direction of insertion into the fixing hole (45) by the fixing spring.

[0102] In this embodiment, the front portion of the pin body (135) may have a curved shape. If the front portion of the pin body (135) has a curved shape, friction can be reduced while moving along the flat portion (42), and it may be inserted more easily into the fixing hole (45). As previously explained, the pin body (135) can move along the arrow path of FIG. 8, allowing the handle device (100) to be fixed in various directions and heights.

[0103] Meanwhile, the handle device (100) may be equipped with a bar locking device (150) for fixing the handle bar (110) in an extended state. The structure of the bar locking device (150) is illustrated in FIGS. 10 to 13. The bar locking device (150) can be described as a device that hooks a part of the handle bar (110) to maintain the handle bar (110) in a state where it is rotated in a direction perpendicular to the connecting body (101).

[0104] In this embodiment, the bar locking device (150) is positioned at the bottom of the handle bar (110), and the bar locking device (150) can be raised and lowered in a direction parallel to the height direction of the height adjustment rod (40) to hook and fix a part of the handle bar (110). When the bar locking device (150) is positioned at the bottom of the handle bar (110) in this manner, the bar locking device (150) is also covered by the handle bar (110), so that its exposure to the outside can be minimized. In addition, since the bar locking device (150) is positioned in a location adjacent to the fixing pin (130), the user can access and operate it more easily.

[0105] Referring to FIG. 10, the bar locking device (150) can be installed on a locking body (117) positioned at the bottom of the bar support (105). The bar locking device (150) can be installed on the locking body (117) in a vertical direction. A locking lever (151) protrudes from the bar locking device (150), and the locking lever (151) is exposed to the outside and is a part that can be grasped by a user.

[0106] Looking at FIG. 12, it can be seen that a locking pin (155) is connected to the locking lever (151). A stopper (156) may be provided on the locking pin (155) in a direction that widens the width, and one end of a locking spring (157) may be fixed to the stopper (156). Thus, the locking spring (157) can always provide elastic force in a direction that causes the locking pin (155) to protrude upward.

[0107] The handle bar (110) may be provided with a locking block (118). The locking block (118) may be a part that can be caught by the locking pin (155) and may be a structure protruding from the lower part of the handle bar (110). In FIG. 12, the handle bar (110) is shown in a folded state, so the locking pin (155) is not yet inserted into the locking hole (118a) of the locking block (118).

[0108] In this state, if the handlebar (110) is rotated clockwise and unfolded, it can be in a state as shown in FIG. 13. That is, the locking pin (155) of the bar locking device (150) can be inserted into the locking hole (118a) of the locking block (118). Accordingly, the handlebar (110) cannot be arbitrarily returned from the unfolded state to the folded state. When the user pulls the locking lever (151) while overcoming the elastic force of the locking spring (157), the locking pin (155) is released from the locking hole (118a), and if the handlebar (110) is rotated in this state, the handlebar (110) can be in a folded state. For reference, when the handlebar (110) is rotated in an extended state, the locking pin (155) may be naturally inserted into the locking hole (118a) through the curved shape of the locking pin (155) even if the user does not pull the locking lever (151).

[0109] FIG. 14 illustrates another embodiment of the handle device (100) constituting the present invention. As shown in FIG. 14, the handle bar may be omitted from the handle device (200). The handle bar may be omitted from the handle device (200), and only the pulley section (220) may be provided. The pulley section (220), like the pulley section (120) of the preceding embodiment, may allow the wire to be smoothly drawn out to the outside and then drawn back in. To this end, a pair of pulleys (223) may be provided inside the pulley housing (221) constituting the pulley section (220). Then, the wire may be discharged into the discharge space (225) between the pair of pulleys (223).

[0110] A connecting body (201) can be directly connected to the pulley portion (220), and the pulley portion (220) may be rotated relative to the connecting body (201). The pulley portion (220) can be rotated in the left and right directions with the rotation axis extending in the same direction as the height adjustment rod (40) as the center of rotation. Reference numeral 201a indicates an insertion space formed in the connecting body (101).

[0111] In the embodiment illustrated in FIG. 14, a fixing pin (230) for fixing the handle device (200) may also be provided, and its structure may be the same as the structure described above. Therefore, a detailed description is omitted. Also, since the handle bar is omitted in this embodiment, the bar locking device (150) for locking the rotation of the handle bar may also be omitted. Reference numeral 209 is the handle portion, which can be used when pulling the fixing lever (231) of the fixing pin (230) or when gripping the handle device (200) to adjust its height. Additionally, reference numeral 207 indicates a pin housing (207) for installing the fixing pin (230).

[0112] Next, the process of using the exercise equipment according to the present invention will be explained with reference to FIG. 15.

[0113] The user can first pull out the first side frame (30A) from the main frame (10) and rotate the height adjustment rod (40). When the exercise equipment is in a stored state, the handle device (100) provided on the height adjustment rod (40) faces inward toward the main frame (10) so that it can be stored inside the main frame (10). Therefore, after taking out the first side frame (30A), the user can rotate the height adjustment rod (40) so that the handle device (100) faces forward. This appearance is illustrated in FIG. 15(a).

[0114] At this time, if the fixed lever (131) is locked, it must be unlocked first. To do this, the rotating lever (53) is lifted in the direction of arrow ①' so that the entire first side frame (30A) can rotate left and right. This state is illustrated in FIG. 15(b).

[0115] When the user lifts the rotation lever (53), the rotation lever (53) rotates and causes the conversion links (52, 54) to rotate. The conversion links (52, 54) can simultaneously rotate and raise the seating leg (55) upward. Therefore, the first side frame (30A) can be rotated as it is separated from the ground.

[0116] Next, the user can rotate the height adjustment rod (40) to adjust the handle device (100) to the desired direction. By rotating the height adjustment rod (40) in the direction of arrow X of FIG. 15(b), the user can adjust the handle device (100) to the desired direction.

[0117] Additionally, the user may adjust the height of the handle device (100). To adjust the height of the handle device (100), the fixing pin (130) must first be released. When the user grasps the fixing lever (131) and pulls the fixing lever (131) while overcoming the elastic force of the fixing spring inside the pin housing (107), the pin body (135) can be released from the fixing hole (45) of the height adjustment rod (40).

[0118] In this way, the state in which the handle device (100) is fixed to the height adjustment rod (40) is released, so the handle device (100) can be rotated relative to the height adjustment rod (40) or raised and lowered. As previously explained, the flat portion (42) of the height adjustment rod (40) may have a structure that is relatively sunken toward the center of the height adjustment rod (40) compared to the curved portion (41), so the pin body (135) of the fixing pin (130) does not deviate from the flat portion (42) and can be stably raised and lowered along a certain path formed by the flat portion (42).

[0119] Specifically, as shown in FIG. 8, the pin body (135) may move away from the uppermost fixing hole (45, ①) among the fixing holes (45) formed in the first planar portion (42a), move downward along the first planar portion (42a), and be inserted into the fixing hole (45, ②) located at the bottom.

[0120] Additionally, the pin body (135) may move to an adjacent second planar section (42b). At this time, the pin body (135) may move to the second planar section (42b) via the first curved section (41a) and may be inserted into a fixing hole (45, ③) formed in the second planar section (42b). Since the surface of the first curved section (41a) is curved, the pin body (135) can move naturally along the first curved section (41a) without significant resistance.

[0121] Through this process, the user can freely set the height and direction of the handle device (100), and in the process, the fixing pin (130) can move along a certain path, thereby improving operability.

[0122] And, as shown in FIG. 15(c), when the rotation lever (53) is rotated in the direction of arrow ①, the mounting leg (55) is lowered and supported on the installation surface, so that the frame fixing device (50) also locks the rotation of the first side frame (30A). The locking operation of the rotation lever (53) may occur before the height adjustment of the handle device (100). At this time, although not shown, the rotation of the height adjustment rod (40) may also be locked in conjunction with the rotation lever (53).

[0123] Finally, the user can make the handle device (100) open. When the handle device (100) is rotated in the Y direction of FIG. 15(c), the handle device (100) is opened and can be fixed in that state. The handle device (100) being fixed in the open state can be achieved by the bar locking device (150) described above.

[0124] When the handlebar (110) is rotated in the unfolding direction (Y direction) and unfolded, it can be in a state as shown in FIG. 13. That is, the locking pin (155) of the bar locking device (150) can be inserted into the locking hole (118a) of the locking block (118). Accordingly, the handlebar (110) cannot be arbitrarily returned from the unfolded state to the folded state. When the user pulls the locking lever (151) while overcoming the elastic force of the locking spring (157), the locking pin (155) is released from the locking hole (118a), and when the handlebar (110) is rotated in this state, the handlebar (110) can be in a folded state. For reference, when the handlebar (110) is rotated in an extended state, the locking pin (155) may be naturally inserted into the locking hole (118a) through the curved shape of the locking pin (155) even if the user does not pull the locking lever (151).

[0125] In the foregoing, although all components constituting an embodiment according to the present invention have been described as being combined or operating in combination, the present invention is not necessarily limited to such embodiments. That is, within the scope of the purpose of the present invention, all components may be selectively combined in one or more ways to operate. Furthermore, terms such as "include," "constitute," or "have" described above, unless specifically stated otherwise, mean that the relevant component may be inherent; thus, they should be interpreted as allowing for the inclusion of additional components rather than excluding other components. All terms, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains, unless otherwise defined. Terms commonly used, such as those defined in advance, should be interpreted in accordance with their meaning in the context of the relevant technology and should not be interpreted in an ideal or overly formal sense unless explicitly defined in the present invention. Explanation of the symbols

[0126] 10: Mainframe 11: Top plate 13: Bottom plate 17: Display 30A: 1st side frame 30B: 2nd side frame 40: Height adjustment pole 41: Curved part 42: Flat section 45: Fixing hole 50: Frame fixing device 100: Handle device 101: Connecting body 110: Handlebar 120: Pulley section 130: Fixing pin 131: Fixed lever 135: Pin body 150: Bar lock

Claims

Claim 1 An exercise device comprising: a main frame having a drive unit that generates an exercise load inside; a side frame configured to be stored in or withdrawn from the main frame and rotatable relative to the main frame when withdrawn from the main frame; a height adjustment rod installed on the side frame and rotatable about a rotation axis extending in the height direction, having a flat section and a curved section continuously arranged along the circumferential direction of the cross section, and having a plurality of fixing holes arranged along the height direction in the flat section; and a handle device having a fixing pin that moves up and down along the height adjustment rod and is inserted into one of the fixing holes to fix the height. Claim 2 An exercise mechanism according to claim 1, wherein the flat portion and the curved portion each extend along the height direction of the height adjustment rod. Claim 3 An exercise device according to claim 1, wherein a plurality of flat sections are arranged on the height adjustment rod, and the curved sections are arranged between the flat sections. Claim 4 An exercise device according to claim 3, wherein the planar portions are arranged at regular intervals along the circumferential direction of the cross-section of the height adjustment rod. Claim 5 An exercise mechanism according to claim 3, wherein the height of a fixing hole formed in a first planar portion constituting the planar portions and the height of a fixing hole formed in a second planar portion adjacent to the first planar portion are different. Claim 6 An exercise device according to claim 1, wherein the flat portion is recessed toward the center of the height adjustment rod more than the curved portion. Claim 7 An exercise device according to claim 1, wherein the left and right widths of the planar portion are greater than or equal to the width of the front portion of the fixing pin that is in close contact with the planar portion. Claim 8 An exercise device according to claim 1, wherein a plurality of curved portions are arranged on the height adjustment rod, and each of the curved portions constitutes a part of a circular shape with the center of the cross-section of the height adjustment rod as the center of the circle. Claim 9 An exercise device according to claim 1, wherein the handle device is provided with an elastic member that elastically supports the fixing pin in the direction of the planar portion. Claim 10 In claim 1, the fixing pin is an exercise mechanism that protrudes in the same direction as the handlebar of the handle device. Claim 11 An exercise apparatus according to claim 1, wherein the handle device comprises: a connecting body surrounding the height adjustment rod; a handle bar coupled to the connecting body and positioned parallel to the connecting body or extended in a direction perpendicular to the connecting body; and a fixing pin disposed on the connecting body and inserted into the fixing hole while at least a portion of which moves linearly in the direction of the planar portion. Claim 12 In claim 11, the fixing pin is an exercise device positioned below the handlebar. Claim 13 An exercise apparatus according to claim 11, wherein the fixing pin comprises: a fixing lever exposed to the outside; a pin body connected to the fixing lever and inserted into the fixing hole; and a fixing spring providing elastic force to the pin body in the direction of the planar portion. Claim 14 An exercise mechanism according to claim 13, wherein the surface of the pin body facing the fixing hole is formed as a curved surface. Claim 15 An exercise device according to claim 11, wherein the handle device is equipped with a bar locking device that hooks a part of the handle bar to maintain the handle bar in a state where it is extended in a direction perpendicular to the connecting body. Claim 16 An exercise device according to claim 15, wherein the bar locking device is positioned at the lower part of the handlebar, and the bar locking device moves up and down in a direction parallel to the height direction of the height adjustment rod to hook and fix a part of the handlebar. Claim 17 In claim 1, the height adjustment rod is an exercise device forming the front portion of the side frame. Claim 18 An exercise apparatus according to claim 17, wherein the upper end of the height adjustment rod is fixed to an upper body constituting the side frame and the lower end of the height adjustment rod is fixed to a lower body constituting the side frame, and the height adjustment rod can rotate relative to the main frame together with the upper body and the lower body. Claim 19 An exercise device comprising: a main frame having a drive unit that generates an exercise load inside; a side frame configured to be stored in or withdrawn from the main frame and rotatable relative to the main frame when withdrawn from the main frame; a height adjustment rod installed in a direction in which it is erected on the side frame, having a flat portion in at least part of a circular cross-section, and having a plurality of fixing holes formed in the flat portion; and a handle device having a fixing pin that moves up and down along the height adjustment rod and is inserted into one of the fixing holes to fix the height.

Images