Patent Application
20250195949
This application claims the priority of Korean Patent Applications No. 2023-0182062 filed on Dec. 14, 2023, and No. 2024-0161859 filed on Nov. 14, 2024, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.
The present disclosure relates to a hanging wrist roller that allows a user to perform a weight lifting exercise by rotating a grip bar in a state where the hanging wrist roller is hung in the air.
A hanging wrist roller is known as one of the exercises for training forearm muscles.
Referring to
The band-shaped strap 8a may be directly fixed to the hanger piece 5, and the rope 8b may be coupled to the hanger piece 5 through a hook 9.
The hanging wrist roller is a machine that performs weight lifting exercises by holding the grip bar on both sides in a posture with both arms extended forward in a state where the grip bar is hung in the air and rotating the grip bar with one hand alternately. The hanging wrist roller is advantageous in training forearm muscles of both arms in a balanced manner.
However, the known hanging wrist roller has the following problems.
First, there is a disadvantage in that it is difficult to adjust the height of the grip bar. In general, it is known that the hanging wrist roller is effective when exercise is performed in a posture with the arms extended parallel to each other. However, since the hanging wrist roller is fixed at the height at which the hanging wrist roller is initially installed, there is a disadvantage in that it is difficult for the exerciser to adjust the height of the grip bar to fit his or her body. Second, since the ring of the hanger piece is partially open for insertion of the grip bar, care should be taken to prevent the grip bar from coming off during exercise. Third, as the grip bar rotates, friction occurs between the ring of the hanger piece made of metal and the grip bar, which impedes the balance of the exercise and causes noise and wear.
An object of the present disclosure is to provide a hanging wrist roller capable of easily adjusting a height of the grip bar installed in a state of being hung in the air by a rope.
A hanging wrist roller according to an exemplary embodiment of the present disclosure includes: a grip bar including a grip bar body including a center portion and a handle disposed on each of both sides of the center portion, and a sheave disposed respectively between the center portion and the handle and having a groove; a lower rope coupled to the center portion; and an upper rope coupled to a support to hang the grip bar in the air and placed over the sheave. A lower rope coupling portion is symmetrically formed in the center portion so that both end portions of the lower rope are coupled.
According to an exemplary embodiment of the present disclosure, the hanging wrist roller includes a height adjustment plate. The height adjustment plate is formed with rope connection portions through which the upper rope passes through both sides and forms the loop, and to which both ends of the upper rope are fixed. A height at which the grip bar is hung in the air may be adjusted by adjusting a distance of the height adjustment plate to the grip bar.
According to an exemplary embodiment of the present disclosure, an interval between the rope connection portions of the height adjustment plate corresponds to an interval between both sheaves.
According to an exemplary embodiment of the present disclosure, the rope connection portion includes at least two through-holes disposed in upper and lower positions so that the upper rope passes through the through-holes in a zigzag manner, and a fixing hole to which an end portion of the upper rope is fixed.
According to an exemplary embodiment of the present disclosure, the sheave is a bearing type sheave mounted so as to be relatively rotatable with respect to the grip bar body.
According to an exemplary embodiment of the present disclosure, the sheave protrudes radially from the grip bar body and is formed integrally with the grip bar body.
According to the hanging wrist roller according to the present disclosure, the height of the grip bar, which is installed in a state of being hung to the support located at the upper side, may be easily adjusted to fit the body of the exerciser. In addition, it is possible to perform exercise in a state where the grip bar is stably supported by the upper rope.
The effects of the present disclosure are not limited to the aforementioned effects, and other effects, which are not mentioned above, will be apparently understood to a person having ordinary skill in the art from the following description.
The objects to be achieved by the present disclosure, the means for achieving the objects, and the effects of the present disclosure described above do not specify essential features of the claims, and, thus, the scope of the claims is not limited to the disclosure of the present disclosure.
The above and other aspects, features and other advantages of the present disclosure will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
Hereinafter, the exemplary embodiment of the present disclosure will be described with reference to the accompanying drawings and exemplary embodiments as follows. Scales of components illustrated in the accompanying drawings are different from the real scales for the purpose of description, so that the scales are not limited to those illustrated in the drawings.
Specific details for carrying out the present disclosure will be described with reference to the attached drawings. In addition, when explaining the present disclosure, when it is judged that related public notice functions are obvious to those skilled in the art and may unnecessarily obscure the gist of the present disclosure, the detailed description thereof will be omitted.
Referring to
The grip bar 100 includes a center portion 110, right and left handles 120 provided on both sides of the center portion 110, and sheaves 150 positioned between the center portion 110 and the right and left handles 120.
The center portion 110 is positioned in the middle of the grip bar 100 and may be formed in a cylindrical shape as a portion around which the lower rope 400 is wound.
Lower rope fixing portions 112 to which both end portions of the lower rope 400 are respectively fixed are formed on both sides of the center portion 110.
The handle 120 is a portion where a user holds the grip bar 100 with his or her hand and is positioned on each of both sides of the center portion 110. The handle 120 is formed to rotate together with the center portion 110. The right and left handles 120 may be formed integrally with the center portion 110 or may be integrally coupled with the center portion.
On both sides of the center portion 110, the sheaves 150 are provided between the right and left handles 120 and the center portion 110. Each sheave 150 includes a groove 152 formed in a circumferential direction of the grip bar 100. The sheave 150 is a portion where a loop 350 formed at the lower portion of the upper rope 300 is supported, and the loop 350 is placed over the groove 152 of the sheave 150.
The upper rope 300 connects the support 10 located at the upper side and the grip bar 100, and has the function of suspending the grip bar 100 in the air. The support 10 is presented in the form of a rod in
The upper rope 300 includes first and second upper rope portions 310 and 320 branching from the support 10 and extending downward. The upper rope 300 may be formed as a single rope. The central part of the upper rope 300 is connected to the support 10 by forming a knot 302, and both sides extend downward while forming the first and second upper rope portions 310 and 320.
The loop 350 is formed at the lower part of both sides of the upper rope 300. Both sides of the upper rope 300, that is, the first and second upper rope portions 310 and 320, extend downward via the height adjustment plate 200, change direction while passing through the groove 152 of the sheave 150, and extend upward, and then are fixed to the height adjustment plate 200, thereby forming the loop 350.
The lower rope 400 has the function of hanging the weight 500 on the grip bar 100. The lower rope 400 includes first and second lower rope portions 410 and 420 that are connected to the weight 500 at the lower end of the lower rope 400 and branched and extended upward.
The lower rope 400 may be formed as a single rope. The lower rope 400 extends upward while passing through a ring formed at the upper end of the weight 500, and one and the other side portions that branch and extend become the first and second lower rope portions 410 and 420.
The upper ends of both sides of the lower rope 400 are fixed to the lower rope fixing portions 112 formed on both sides of the center portion 110 of the grip bar 100. The lower rope fixing portions 112 may be formed as holes located on both sides of the center portion 110. The lower rope fixing portions will be described later.
When the upper ends of the first and second lower rope portions 410 and 420 are fixed to the center portion 110 of the grip bar 100, the weight 500 is easily placed on the center line of the lower rope 400 due to the weight of the weight 500.
The lower rope 400 forms an inverted triangle shape between the weight 500 and the grip bar 100. Therefore, when the handle 120 is held and the grip bar 100 is rotated in one direction, the first and second lower rope portions 410 and 420 are wound in a spiral shape toward the center of the center portion 110 and the weight 500 is lifted. When the handle 120 is turned in the opposite direction and the grip bar 100 is rotated in the other direction, the weight 500 is lowered. Repeating this motion strengthens the forearm muscles.
The height adjustment plate 200 is located above the grip bar 100. The upper rope 300 passes through the height adjustment plate 200 and is connected to the grip bar 100. The first and second upper rope portions 310 and 320 pass through the height adjustment plate 200 and extend downward. Moreover, after the first and second upper rope portions are placed over the sheave 150, the directions thereof are changed to form the loop 350, and then the first and second upper rope portions are fixed to the height adjustment plate 200.
Since both end portions of the upper rope 300, that is, the end portions of the first and second upper rope portions 310 and 320, are fixed to the height adjustment plate 200, when the position of the height adjustment plate 200 is adjusted up and down, the size of the loop 350 is adjusted. Since the loop 350 is a portion where the upper rope 300 overlaps and extends, for example, when the size of the loop 350 increases, the length of the upper rope 300 in the height direction becomes shorter. Since the sheaves 150 of the grip bar 100 are hung on both loops 350 of the upper rope 300, adjusting the height of the height adjustment plate 200 leads to adjusting the height of the grip bar 100. Therefore, the height of the grip bar 100 may be adjusted to a height suitable for a hanging weight lifting exercise by moving the height adjustment plate 200 up or down.
On both sides of the height adjustment plate 200, rope connection portions 250 are formed through which the first and second upper rope portions 310 and 320 pass and at which the end portions thereof are fixed.
The rope connection portion 250 includes at least two through-holes 252 and 254 that pass through the first and second upper rope portions 310 and 320 and extend downward, and a fixing hole 256 for fixing the first and second upper rope portions. The through-holes 252, 254 and the fixing hole 256 are functionally separated, but their shapes may be the same.
According to the exemplary embodiment of the present disclosure, the interval between the rope connection portions 250 formed on both sides of the height adjustment plate 200 corresponds to the interval of both sheaves 150 of the grip bar 100.
The forming positions of both loops 350 may be spread apart by a distance corresponding to the distance between the sheaves 150 by the height adjustment plate 200. The first and second upper rope portions 310 and 320 that pass through the height adjustment plate 200 extend almost vertically downwards and are placed over the sheave 150 and extend almost vertically upwards to form the loop 350. Since the right and left loops 350 extend substantially parallel to the sheave groove 152, even when the user swings the grip bar 100 while turning the grip bar 100 for lifting or lowering the weight, the loop 350 of the grip bar 100 does not come off from the sheave groove 152 and is stably supported.
The rope connection portion 250 includes at least two through-holes 252 and 254. The two through-holes 252 and 254 are disposed up and down. The fixing hole 256 is disposed adjacent to the through-holes 252 and 254.
The first and second upper rope portions 310 and 320 pass through two through-holes 252 and 254 disposed up and down in a zigzag manner, extend downward, and extend upward while crossing the groove 152 of the sheave 150 and then pass through the fixing hole 256.
The first and second upper rope portions 310 and 320 that pass through the fixing hole 256 are fixed by a knot or the like. Instead of a knot, a fixing device may be used.
According to one exemplary embodiment of the present disclosure, the grip bar 100 includes a grip bar body 140 including the center portion 110 and both handles 120, and the sheave 150 and is formed by assembling them.
The grip bar body 140 includes the center portion 110 and both handles 120. The center portion 110 and both handles 120 are coupled and integrated to rotate together.
The center portion 110 includes a rod-shaped center body 114 and first coupling portions 115 formed on both sides of the center body 114.
The center body 114 is a portion in which the lower rope 400 is wound around the grip bar 100. The lower rope fixing portion 112 having a hole shape is formed on both sides of the center body 114 in a direction intersecting a longitudinal central axis. The lower rope fixing portions 112 are disposed symmetrically to the center portion 110. The hole forming the lower rope fixing portion 112 is formed by penetrating the center body 114 in a radial direction and has a stepped surface inside the hole. Therefore, when the end portion of the lower rope 400 is inserted through one opening of the lower rope fixing portion 112, a knot is formed at the end portion, and then the lower rope is pulled, the end portion of the lower rope 400 is fixed to the lower rope fixing portion 112.
The first coupling portion 115 may be formed as a protrusion extending in the longitudinal direction. A first coupling hole 116 for a fastening member 130 is formed in the first coupling portion 115. The handle 120 is coupled to the first coupling portion 115.
The handle 120 may be formed in a rod shape, and a grip groove may be formed on the outer peripheral surface to facilitate hand-holding. The handle 120 may be formed hollow. Caps 129 that block the hollow portions of the handles 120 may be coupled to both end openings in the longitudinal direction.
A second coupling portion 125 that is coupled with the first coupling portion 115 is formed at the end portion of the handle 120 facing the center portion 110. The second coupling portion 125 is formed in the form of an insertion hole into which the first coupling portion 115 is inserted. The first coupling portion 115 and the second coupling portion 125 have complementary shapes.
A second coupling hole 126 that is aligned with the first coupling hole 116 of the first coupling portion 115 is formed at the second coupling portion 125.
The center portion 110 and the handle 120 are fixed by inserting and assembling the first coupling portion 115 and the second coupling portion 125, and coupling the fastening member 130 through the second coupling hole 126 to the aligned first coupling hole 116. A pin, a bolt, or the like may be used as the fastening member.
According to an exemplary embodiment of the present disclosure, the fastening member 130 may be formed as a bolt having threads formed on an outer peripheral surface, and may be formed to be screw-coupled only to the first coupling hole 116. That is, the second coupling hole 126 of the second coupling portion 125 positioned on the outer side of the first coupling portion 115 and the second coupling portion 125 is formed as an insertion hole without threads, and the first coupling hole 116 of the first coupling portion 115 positioned on the inner side is formed as a nut hole having threads formed on the inner peripheral surface. When the fastening member 130 formed as a bolt is inserted through the second coupling hole 126 and screw-connected to the first coupling hole 116, the bolt is tightened while the first coupling portion 115 is pulled to the inner peripheral surface of the second coupling portion 125. Accordingly, the first coupling portion 115 and the second coupling portion 125 are fixed while micro-compressive deformation occurs in the second coupling portion 125. Since the center portion 110 and the handle 120 are firmly fixed, no play occurs, and the loosening of the bolt is suppressed by micro-compressive deformation of the second coupling portion 125. This principle is similar to the fixing principle that occurs when assembling a screw by interposing a washer.
The sheaves 150 are coupled to both sides of the center portion 110 in the grip bar body 140. According to the exemplary embodiment of the present disclosure, the sheave 150 is formed as a bearing type sheave, that is, a bearing sheave. The bearing sheave 150 is inserted into the first coupling portion 115 through a mounting hole 151, and the groove 152 is formed circumferentially on the outer peripheral surface of the bearing sheave 150.
The bearing sheave 150 may have various forms. For example, the bearing sheave may be in a form in which the outer ring and inner ring are separated to rotate individually and the groove 152 is formed on the outer ring side. Alternatively, the bearing may be mounted on the inner surface of the bearing sheave mounted on the first coupling portion 115 or may have a bearing surface formed thereon. The bearing is a component that allows relative rotation between the shaft on which the bearing is mounted and the part supported by the bearing, and in the present specification, the bearing sheave 150 rotates relative to the grip bar body 140.
Since the rotation of the grip bar body 140 is not transmitted to the loop 350 of the upper rope 300 by the bearing sheave 150, the motion of the exerciser holding the handle 120 and turning the grip bar body 140 may be performed more stably.
The grip bar body 140 is formed in a rod shape, and the handle 120 extends to both sides of the center portion 110 located in the middle of the grip bar body. The grip bar body 140 may be formed hollow, and the caps 129 that block the hollow portions of the handles 120 may be coupled to both end portions in the longitudinal direction.
The sheaves 150 are formed between the center portion 110 and both handles 120. The sheave 150 is formed integrally with the grip bar body 140.
The sheave 150 protrudes in the radial direction of the grip bar body 140 and the center portion of the sheave is recessed in the circumferential direction to form the groove 152.
Since the sheave 150 is formed integrally with the grip bar body 140, the sheave rotates together with the grip bar body 140, and the sheave 150 rotates in a state of being placed over the loop 350 of the upper rope 300.
On both sides of the center portion 110, a lower rope fixing portion 112 in the form of a through-hole is formed to which both end portions 415 of the lower rope 400 are fixed. In an exemplary embodiment in which the grip bar body 140 is formed to have a hollow portion, the lower rope fixing portion 112 penetrates from the outer peripheral surface of the center portion 110 toward the inside of the hollow portion.
The first and second lower rope portions 410 and 420 are introduced into the hollow interior of the grip bar 100 through the lower rope fixing portion 112 in the form of a through-hole, and then are pulled outward through both side end openings. Afterwards, when the end portions of the first and second lower rope portions 410 and 420 are knotted or the fasteners are tied and then pulled, the coupling of the lower rope 400 is completed.
The protection scope of the present disclosure is not limited by the description and expression of the exemplary embodiments explicitly described above. In addition, it is added once again that the protection scope of the present disclosure may not be limited due to obvious changes or substitutions in the technical field to which the present disclosure belongs.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2023-0182062 | Dec 2023 | KR | national |
| 10-2024-0161859 | Nov 2024 | KR | national |
