Two-way row machine

Abstract

To provide a two-way row machine including a support unit that is adjustable in height and angle according to various users' bodies and allowing the users to adjust the distance between their hands and a handle according to the height and angle of the support unit.SOLUTION: A two-way row machine includes a base frame 110 arranged to be in contact with the ground; a standing frame 120 coupled to an upper surface of the base frame 110 and arranged to stand in the vertical direction; a footrest unit 130 seated on the upper surface of the base frame 110 and supporting a user's feet; a support unit 140 that is fixed to the standing frame 120 and the footrest unit 130, can support the user's body, and is adjustable in the standing angle and the height; a pair of rotation units 150 link-coupled to the base frame 110 and disposed inclined toward both lower sides of the support unit 140; and a pair of handle units coupled to one end of each of the paired rotation units 150 and formed to allow the user to hold it to rotate the rotation units 150.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a two-way row machine, and more particularly to a two-way row machine that is provided with a support unit that can be adjusted in height and angle to suit various user bodies, and that allows the distance between the user's hands and the handles to be adjusted depending on the height and angle of the support unit. [Background technology]

[0002] Bent over row is a weight training exercise to improve the latissimus dorsi and is a representative exercise to build well-balanced back muscles. Grab a dumbbell with both hands, bend your torso forward about 80 degrees, bend your knees slightly, bend your arms and pull the dumbbells under your pectoral muscles, then return to the original position to perform the bent over row.

[0003] At this time, when exercising with dumbbells, it is difficult for beginners to assume the correct posture and perform the exercise, and they may end up exercising in the wrong posture or putting strain on their body, and safety accidents such as dropping the dumbbells occur frequently.

[0004] Thus, an exercise machine capable of performing the bent-over-row exercise was disclosed, but the height and angle of the machine were fixed and could not accommodate the various body sizes of users, resulting in problems such as reduced exercise efficiency.

[0005] Therefore, there is a need for research into a two-way row machine that is provided with a support unit that can be adjusted in height and angle to suit the various body types of users, and that can adjust the distance between the user's hands and the handlebars according to the height and angle of the support unit. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Korean Patent No. 10-0479725 Summary of the Invention [Problem to be solved by the invention]

[0007] The objective of the present invention is to provide a two-way row machine that is provided with a support unit that can be adjusted in height and angle to suit various user bodies, and that allows the distance between the user's hands and the handles to be adjusted according to the height and angle of the support unit.

[0008] Furthermore, another object of the present invention is to provide a two-way row machine in which the height and angle of the support unit can be adjusted to suit the body sizes of various users.

[0009] Another object of the present invention is to provide a two-way row machine that allows the distance between the user's hands and the handles to be adjusted by providing a rotating stopper unit.

[0010] Another object of the present invention is to provide a two-way row machine that allows the position of the foothold to be changed to suit the body sizes of various users.

[0011] Another object of the present invention is to provide a two-way row machine that is convenient and allows the user to freely change between the overgrip and handgrip as needed by providing a handle unit with an adjustable angle. [Means for solving the problem]

[0012] A two-way row machine according to an embodiment of the present invention includes a base frame 110 arranged to contact the ground, an upright frame 120 connected to an upper surface of the base frame 110 and arranged to stand vertically, a foothold unit 130 installed to seat on the upper surface of the base frame 110 and support the feet of a user, a support unit 140 fixed to the upright frame 120 and the foothold unit 130 to support the body of a user and adjustable in upright angle and height, a pair of rotating units 150 linked and connected to the base frame 110 and inclined downward on both sides of the support unit 140, a pair of angle-adjustable handle units 160 connected to one end of each of the pair of rotating units 150 so that the user can hold them to rotate the rotating unit 150, and a pair of rotation stopper units 170 connected to the base frame 110 and installed to support one point of the rotating unit 150 so as to enable height adjustment corresponding to the height difference between the different height protrusions 174, 175.

[0013] In addition, the rotation stopper unit 170 according to an embodiment of the present invention may include a link bracket 171 connected to one point of the base frame 110 and provided in a U-shape, a support shaft 172 provided penetrating the link bracket 171, a rotation link 173 provided in a hollow cylindrical shape surrounding the support shaft 172 to enable rotation, a first height protrusion 174 protruding from one point of the rotation link 173 and provided at a first length, a second height protrusion 175 protruding from the rotation link 173 and disposed at a predetermined angle with the first height protrusion 174 and provided at a second length, a plurality of cushion parts 176 provided at one ends of the first height protrusion 174 and the second height protrusion 175, a first receiving stand 177 provided at a first length from the link bracket 171, and a second receiving stand 178 provided at a second length in a direction facing the first receiving stand 177 on the link bracket 171.

[0014] In addition, the foothold unit 130 according to one embodiment of the present invention may include a main folded plate 131 seated on the upper surface of the base frame 110 and provided in the form of a folded plate, a pair of support plates 132 arranged at a preset distance on the underside of the main folded plate 131, a plurality of distance adjustment holes 133 provided through the main folded plate 131 and the support plate 132, and a foothold module 134 inserted and fixed into the distance adjustment hole 133 to support the user's feet.

[0015] In addition, the scaffold module 134 according to one embodiment of the present invention may include a lower plate 1341 seated on the upper surface of the main folding plate 131 and provided in a plate-like shape, a pair of distance fixing parts 1342 penetrating the lower plate 1341 and inserted into the distance adjustment holes 133 to determine the fixed position of the lower plate 1341, a plate-like folding plate 1343 fixed to the lower plate 1341 and bent at a right angle, an inclined plate 1344 fixed to one end of the folding plate 1343 at a preset angle and having a pair of protrusions 13441 at its upper end, and a scaffold 1345 fixed to each of the protrusions 13441 and supporting the user's feet.

[0016] In addition, the support unit 140 according to one embodiment of the present invention may include a link frame 141 that stands on the foothold portion 130 and is inclined toward the upper portion of the standing frame 120, a first support sheet 142 that is fixed to the upper portion of the link frame 141 and configured to support the chest and abdomen of the user, a second support sheet 143 that is configured to support the buttocks of the user, an angle adjustment portion 144 that is connected to one point of the standing frame 120 and one end of the link frame 141 and configured to adjust the angle of the link frame 141, and a height adjustment portion 145 that is connected to one side of the link frame 141 and fixed to one side of the second support sheet 143 to adjust the height of the second support sheet 143.

[0017] In addition, the height adjustment unit 145 according to one embodiment of the present invention may include a pair of rack bars 1451 respectively coupled to both sides of the link frame 141 and having a plurality of grooves arranged in series, a roller module 1452 having a plurality of rollers contacting the pair of rack bars 1451 and coupled to one side of the first support sheet 142, a fixed base 1453 that is fixed to the roller module 1452 and inserted into at least one of the plurality of grooves to fix the positions of the first support sheet 142 and the roller module 1452, and an adjustment handle 1454 that is connected to the fixed base 1453 and determines whether or not the fixed base 1453 and the groove are inserted. Effect of the Invention

[0018] The two-way row machine according to one embodiment of the present invention is provided with a support unit that can be adjusted in height and angle to suit various user bodies, and has the effect of allowing the distance between the user's hands and the handles to be adjusted according to the height and angle of the support unit.

[0019] In addition, the two-way row machine according to one embodiment of the present invention has the advantage that the height and angle of the support unit can be adjusted according to the body sizes of various users.

[0020] In addition, the two-way row machine according to one embodiment of the present invention has an advantage that the distance between the user's hands and the handles can be adjusted by providing a rotation stopper unit.

[0021] In addition, the two-way row machine according to one embodiment of the present invention has the advantage that the position of the foothold can be changed to suit the body sizes of various users.

[0022] In addition, the two-way row machine according to one embodiment of the present invention is provided with a handle unit whose angle can be adjusted, which allows the user to freely and conveniently change between the overgrip and handgrip as needed. [Brief description of the drawings]

[0023] [Figure 1] FIG. 1 is a diagram showing a two-way row machine according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a diagram showing a base frame according to an embodiment of the present invention. [Diagram 3] FIG. 2 shows a standing frame according to an embodiment of the present invention. [Figure 4] FIG. 2 is a diagram showing a scaffold portion according to one embodiment of the present invention. [Diagram 5] FIG. 2 is a perspective view of a scaffold module according to one embodiment of the present invention; [Figure 6] FIG. 2 is a side view of a scaffold module according to one embodiment of the present invention; [Figure 7] 1A and 1B are diagrams showing a support unit according to an embodiment of the present invention; [Figure 8] 13A and 13B are diagrams illustrating an angle adjustment unit according to an embodiment of the present invention. [Figure 9] 1A and 1B are diagrams showing a height adjustment section according to one embodiment of the present invention; [Figure 10] 1A and 1B are diagrams showing a rotating unit and a handle unit according to an embodiment of the present invention; [Figure 11] 1A and 1B are diagrams showing a rotation stopper unit according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the concept of the present invention is not limited to the embodiments shown, and a person skilled in the art who understands the concept of the present invention can easily propose other inventions that fall within the concept of the present invention by adding, changing, deleting, etc., other components within the same concept, and other embodiments that fall within the concept of the present invention, which are also included in the concept of the present invention.

[0025] The two-way row machine 100 of the present invention will be described in detail below with reference to the accompanying Figs. 1 to 11.

[0026] FIG. 1 is a diagram showing a two-way row machine according to one embodiment of the present invention.

[0027] Referring to FIG. 1 , a two-way row machine 100 according to one embodiment of the present invention may include a base frame 110, a standing frame 120, a scaffolding section 130, a support unit 140, a rotating unit 150, a handle unit 160 and a rotation stopper unit 170.

[0028] The base frame 110 can be positioned to contact the ground. The base frame 110 can be seen in more detail with reference to FIG.

[0029] FIG. 2 is a diagram showing a base frame according to an embodiment of the present invention.

[0030] Referring to FIG. 2, the base frame 110 can include a tread portion 111 .

[0031] A step 111 may be coupled to one side and provided to allow a user to step on and climb onto the support unit 140 .

[0032] 1, the standing frame 120 may be coupled to an upper surface of the base frame 110 and may stand vertically. The standing frame 120 may be viewed in more detail with reference to FIG.

[0033] FIG. 3 is a diagram showing a standing frame according to an embodiment of the present invention.

[0034] Referring to FIG. 3, the standing frame 120 can include a number of mounting bars (not shown).

[0035] 1, the foothold 130 is provided to seat on the upper surface of the base frame 110 and can support the feet of a user. The foothold 130 can be seen in more detail with reference to FIG.

[0036] FIG. 4 is a diagram showing a scaffold according to one embodiment of the present invention.

[0037] Referring to FIG. 4 , the platform part 130 according to an embodiment of the present invention may include a main bending plate 131 , a support plate 132 , a distance adjustment hole 133 , and a platform module 134 .

[0038] The main folded plate 131 is seated on the upper surface of the base frame 110 and may be provided in the form of a folded plate.

[0039] The support plate 132 may be disposed at a preset distance from the lower surface of the main bending plate 131 .

[0040] A distance adjustment hole 133 may be provided through the main bending plate 131 and the support plate 132 .

[0041] The foothold module 134 is inserted into and fixed in the distance adjustment hole 133 to support the user's foot. The foothold module 134 will be examined in more detail with reference to FIGS.

[0042] FIG. 5 is a perspective view showing a scaffold module according to one embodiment of the present invention, and FIG. 6 is a side view showing a scaffold module according to one embodiment of the present invention.

[0043] 5 and 6, the scaffold module 134 according to an embodiment of the present invention may include a lower plate 1341, a distance fixing part 1342, a bent plate 1343, an inclined plate 1344 and a scaffold 1345.

[0044] The lower plate 1341 is seated on the upper surface of the main bending plate 131 and may be formed in a plate shape.

[0045] The distance fixing part 1342 penetrates the lower plate 1341 and is inserted into the distance adjusting hole 133 to determine the fixing position of the lower plate 1341 .

[0046] The bent plate 1343 is fixed to the lower plate 1341 and bent at a right angle to have a plate shape.

[0047] The inclined plate 1344 is fixed to one end of the bent plate 1343 at a preset angle, and may have a pair of protrusions 13441 at the upper end.

[0048] A foothold 1345 is fixed to each of the projections 13441 and is capable of supporting the user's feet.

[0049] The main folding plate 131 and the footing 1345 are provided with a number of slits (not shown) to prevent the user from slipping.

[0050] Providing the scaffold module 134 in a movable position has the effect of being able to accommodate users of various body sizes.

[0051] 1, the support unit 140 is fixed to the standing frame 120 and the foothold 130, and can support the user's body and can be provided to adjust the standing angle and height. The support unit 140 will be examined in more detail with reference to FIG. 7.

[0052] FIG. 7 is a diagram showing a support unit according to an embodiment of the present invention.

[0053] Referring to FIG. 7, a support unit 140 according to an embodiment of the present invention may include a link frame 141, a first support sheet 142, a second support sheet 143, an angle adjustment unit 144, and a height adjustment unit 145.

[0054] The link frame 141 may be erected on the footing portion 130 and inclined toward the upper portion of the erection frame 120 .

[0055] A first support sheet 142 may be fixed to an upper portion of the link frame 141 and configured to support the chest and abdomen of the user.

[0056] A second support sheet 143 may be provided to support the user's buttocks.

[0057] An angle adjustment unit 144 may be coupled to one point of the standing frame 120 and one end of the link frame 141 to adjust the angle of the link frame 141. The angle adjustment unit 144 will be examined in more detail with reference to FIG.

[0058] FIG. 8 is a diagram showing an angle adjustment unit according to one embodiment of the present invention.

[0059] Referring to FIG. 8, the angle adjuster 144 according to an embodiment of the present invention can adjust the angle by fixing a pin in a desired hole.

[0060] Referring again to the drawings, the height adjustment unit 145 may be coupled to one side of the link frame 141 and fixed to one side of the second support sheet 143 to adjust the height of the second support sheet 143. The height adjustment unit 145 will be examined in more detail with reference to FIG.

[0061] FIG. 9 is a diagram showing a height adjuster according to one embodiment of the present invention.

[0062] Referring to FIG. 9, a height adjustment unit 145 according to an embodiment of the present invention may include a rack bar 1451, a roller module 1452, a fixed base 1453, and an adjustment handle 1454.

[0063] The rack bar 1451 is coupled to both sides of the link frame 141, and a number of grooves may be arranged in series.

[0064] The roller module 1452 includes a plurality of rollers that contact the pair of rack bars 1451 and can be coupled to one surface of the first support sheet 142 .

[0065] The fixing base 1453 can be inserted into at least one of the grooves while being fixed to the roller module 1452, thereby fixing the positions of the first support sheet 142 and the roller module 1452.

[0066] An adjustment handle 1454 is connected to the fixed base 1453 and can determine whether the fixed base 1453 and the groove are inserted or not.

[0067] By making the height and angle of the support unit 140 adjustable, the user can select an exercise posture according to the muscles to be stimulated, thereby improving exercise efficiency.

[0068] 1 again, the pivot unit 150 is linked to the base frame 110, and the support unit 140 can be provided with an inclination downwards on both sides. The pivot unit 150 will be seen in more detail with reference to FIG.

[0069] FIG. 10 is a diagram showing a rotating unit and a handle unit according to an embodiment of the present invention.

[0070] Referring to FIG. 10 , a rotating unit 150 according to an embodiment of the present invention may include a folding frame 151 , a cradle frame 152 and a rest bar 153 .

[0071] The folding frame 151 has one end linked to the base frame 110 and can be folded at a first angle.

[0072] The support frame 152 extends vertically from one point of the bent frame 151 , is bar-shaped, and can be seated on the upper surface of the cushion portion 176 .

[0073] A support bar 153 may be provided to protrude from one point of the support frame 152 so as to be capable of fixing a heavy object.

[0074] The handle unit 160 is coupled to one end of each of the pair of rotating units 150 and is configured so that a user can grip it to rotate the rotating unit 150 and adjust the angle. The handle unit 160 may include an angle adjustment plate 161, a rotation shaft 162, a first handle 163, a second handle 164, and an angle fixing pin 165.

[0075] The angle adjustment plate 161 is coupled to one end of the bending frame 151 and has a plurality of angle adjustment holes 1611 .

[0076] The rotation shaft 162 may be fixed to one side of the angle adjustment plate 161 .

[0077] The first handle 163 is provided in the shape of a bent pipe, and one end of the first handle 163 can be fixed to the rotating shaft 162 .

[0078] The second handle 164 is provided in the shape of a bent pipe, and one end of the second handle 164 can be fixed to the rotating shaft 162 .

[0079] An angle fixing pin 165 is coupled to the rotation shaft 162 and is rotatable around the rotation shaft 162, and is inserted into the angle adjustment hole to fix the angle of the first handle 163 and the second handle 164.

[0080] Since the handle unit 160 is provided to be angle adjustable, the user can exercise with the handle at the most comfortable angle depending on the user's exercise posture, and the overgrip and handgrip can be freely and conveniently changed as needed.

[0081] 1 again, the rotation stopper unit 170 is coupled to the base frame 110 and is provided to be height adjustable in response to the height difference between the different height protrusions 174, 175, and can support one point of the rotation unit 150. The rotation stopper unit 170 will be seen in more detail with reference to FIG.

[0082] FIG. 11 is a diagram showing a rotation stopper unit according to one embodiment of the present invention.

[0083] Referring to FIG. 11, a rotational stopper unit 170 according to one embodiment of the present invention may include a link bracket 171, a support shaft 172, a rotational link 173, a first height protrusion 174, a second height protrusion 175, a cushion portion 176, a first receiving base 177 and a second receiving base 178.

[0084] The link bracket 171 may be coupled to one point of the base frame 110 and configured in a U-shape.

[0085] The support shaft 172 may be provided to pass through the link bracket 171 .

[0086] The rotation link 173 may be provided in a hollow cylindrical shape while surrounding the support shaft 172 to allow rotation.

[0087] The first height protrusion 174 may be provided at a first length and extend from a point on the rotation link 173 .

[0088] The second height protrusion 175 may extend from another point of the rotation link 173, be disposed at a preset angle with the first height protrusion 174, and be provided with a second length.

[0089] A cushion portion 176 may be provided at one end of each of the first height protrusion portion 174 and the second height protrusion portion 175 .

[0090] A first receiving base 177 may be provided spaced a first length from the link bracket 171 .

[0091] The second receiving block 178 may be provided on the link bracket 171 in a direction opposite to the first receiving block 177 and spaced apart by a second length.

[0092] The rotation stopper unit 170 can rotate according to the height and angle adjustment of the support unit 140, and can support the rotary unit 150 with one of the first height protrusion 174 and the second height protrusion 175. By providing the rotation stopper unit 170, the distance between the user's hand and the handle unit 160 can be adjusted.

[0093] Hereinafter, the operation of the two-way row machine 100 according to the present invention will be described with reference to FIGS.

[0094] A user can step on the step portion 111 and climb onto the platform portion 130. After moving the position of the platform module 134 to fit the user's back, the height and angle of the support unit 140 can be adjusted as desired. The rotation stopper unit 170 can be rotated according to the height and angle of the support unit 140 to support the rotating unit 150 at an appropriate height. In addition, the angle of the handle unit 160 can be adjusted. After adjusting each configuration according to the user's body size or situation, the user can exercise by sitting or lying on the support unit 140 and rotating the rotating unit 150.

[0095] As noted above, according to one embodiment of the present invention, a support unit is provided that can adjust the height and angle according to various user body sizes, and the distance between the user's hands and the handle can be adjusted according to the height and angle of the support unit.

[0096] In addition, the two-way row machine of one embodiment of the present invention can adjust the height and angle of the support unit to suit the body sizes of various users, and by being provided with a rotating stopper unit, it has the effect of allowing the distance between the user's hands and the handles to be adjusted.

[0097] In addition, the position of the foothold can be changed to suit the body sizes of various users, and a handle unit with adjustable angle is provided, which provides the advantage of allowing the user to freely and conveniently change between the overgrip and handgrip as needed.

[0098] As described above, one embodiment of the present invention has been described with reference to a limited embodiment and drawings, but the embodiment of the present invention is not limited to the above embodiment, and various modifications and variations are possible from such a description by a person having ordinary knowledge in the field to which the present invention belongs. Therefore, one embodiment of the present invention should be understood only by the claims described below, and all equivalent or equivalent modifications are within the scope of the idea of ​​the present invention. [Explanation of symbols]

[0099] 110: Base frame 120: Standing frame 130: Scaffolding 131: Main bent plate 132: Support plate 133: Distance adjustment hole 134: Scaffolding module 140: Support unit 141: Link frame 142: First support sheet 143: Second support sheet 144:Angle adjustment part 145: Height adjustment part 150: Rotating unit 151: Folding frame 152: Support frame 153: Fixed bar 160: Handle unit 161: Angle adjustment version 162: Rotation axis 163: First handle 164: 2nd handle 165: Angle fixing pin 170: Rotation stopper unit 171: Link bracket 172: Support shaft 173: Rotating link 174: First height protrusion 175: Second height protrusion 176: Cushion section 177: First cradle 178: Second cradle

Claims

1. A base frame (110) arranged to contact the ground; A standing frame (120) connected to an upper surface of the base frame (110) and arranged to stand vertically; A foothold portion (130) that is seated on the upper surface of the base frame (110) and supports the user's feet; A support unit (140) that is fixed to the standing frame (120) and the foothold portion (130), can support the user's body, and is adjustable in standing angle and height; A pair of rotation units (150) linked to the base frame (110) and inclined downward on both sides of the support unit (140); a pair of handle units (160) connected to one end of each of the pair of rotating units (150) so that the user can grip and rotate the rotating units (150), and the angle of the handle units (160) is adjustable; a pair of rotation stopper units (170) connected to the base frame (110), arranged to enable height adjustment in response to the height difference between the different height protrusions (174), (175), and supporting one point of the rotation unit (150).

2. The rotation stopper unit (170) includes a link bracket (171) that is connected to one point of the base frame (110) and is provided in a U-shape; A support shaft (172) provided to pass through the link bracket (171); A rotating link (173) is provided in a hollow cylindrical shape so as to surround the support shaft (172) and to enable rotation; A first height protrusion (174) protruding from one point of the rotation link (173) and extending to a first length; a second height protrusion (175) that protrudes from another point of the rotation link (173), is disposed at a preset angle with the first height protrusion (174), and is provided at a second length; A plurality of cushion portions (176) provided at one end of each of the first height protrusion portion (174) and the second height protrusion portion (175); a first support (177) spaced a first length from the link bracket (171); 2. The two-way row machine according to claim 1, further comprising: a second receiving pedestal (178) provided in the link bracket (171) at a second length in a direction opposite to the first receiving pedestal (177).

3. The scaffolding portion (130) is seated on the upper surface of the base frame (110) and includes a main folded plate (131) provided in a folded plate shape; A pair of support plates (132) are disposed on the lower surface of the main bending plate (131) at a predetermined distance from each other; a plurality of distance adjustment holes (133) formed through the main bending plate (131) and the support plate (132); 3. The two-way row machine according to claim 2, further comprising: a foothold module (134) that is inserted and fixed into the distance adjustment hole (133) and supports the user's feet.

4. The scaffold module (134) is seated on the upper surface of the main folding plate (131) and has a plate-like lower plate (1341); a pair of distance fixing parts (1342) that penetrate the lower plate (1341) and are inserted into the distance adjustment holes (133) to determine a fixed position of the lower plate (1341); A plate-shaped folding plate (1343) fixed to the lower plate (1341) and folded at a right angle; an inclined plate (1344) fixed at a preset angle to one end of the bent plate (1343) and having a pair of protrusions (13441) at the upper end; The two-way row machine of claim 3, further comprising: a foothold (1345) fixed to each of the protrusions (13441) and supporting the user's feet.

5. The support unit (140) includes a link frame (141) that is erected on the scaffolding portion (130) and inclined toward the upper portion of the erection frame (120); A first support sheet (142) fixed to an upper portion of the link frame (141) and provided to support the chest and abdomen of the user; A second support sheet (143) provided to support the user's buttocks; an angle adjustment part (144) connected to one point of the standing frame (120) and one end of the link frame (141) for adjusting the angle of the link frame (141); a height adjustment unit (145) coupled to one side of the link frame (141) and fixed to one side of the second support seat (143) to adjust the height of the second support seat (143).

6. The height adjustment unit (145) includes a pair of rack bars (1451) respectively coupled to both sides of the link frame (141) and having a plurality of grooves arranged in series; A roller module (1452) is provided with a plurality of rollers that contact the pair of rack bars (1451) and is coupled to one side of the first support sheet (142); a fixed base (1453) that is inserted into at least one of the grooves while being fixed to the roller module (1452) to fix the positions of the first support sheet (142) and the roller module (1452); 2. The two-way row machine of claim 1, further comprising: an adjustment handle (1454) connected to the fixed base (1453) for determining whether or not the fixed base (1453) and grooves are inserted.

Images