sports equipment

Abstract

An exercise device that allows you to adjust the weight by adjusting the elastic force applied to the wire. [Solution] The elastic module includes a wire roller around which a wire 200 is wound, a rotating shaft that rotates integrally with the wire roller, a spring gear rotatably installed on the rotating shaft, and a spiral spring installed inside the spring gear to provide elastic force to the wire. The spring gear is characterized by comprising a gear body that is open on one side so that the spiral spring can be inserted, a cover that is connected to the gear body with the open side and has radial protrusions on its inner surface that contacts the spiral spring, and a spring fixing device to which the inner end of the spiral spring is fixed and fixed to the rotating shaft.

Description

[Technical Field]

[0001] The present invention relates to exercise equipment, and more particularly to exercise equipment in which the weight of a weight can be adjusted by adjusting the elastic force applied to a wire. [Background technology]

[0002] 2. Description of the Related Art Generally, exercise equipment is used for improving health and physical fitness, and various types of exercise equipment are used depending on the exercise method and the body part to be trained.

[0003] The types of exercise equipment can be divided into aerobic exercise equipment such as a running machine or cycle for improving stamina rather than muscle strength, and strength exercise equipment for improving muscle strength.

[0004] Among these, strength exercises build muscle strength by using specific parts of the body to lift weight blocks of a certain weight or more.

[0005] At this time, the weight block is not lifted directly, but rather indirectly by pulling a wire connected to the weight block, or by connecting a holding frame to the weight block and lifting the holding frame.

[0006] However, such strength training equipment requires the user to change or add weight blocks to adjust the weight to suit the user, which is inconvenient, and there is a risk of falling when changing or adding weight blocks.

[0007] Furthermore, since a large number of weight blocks are required, an appropriate installation space must be secured, and it is difficult to easily move the installation position as needed. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Republic of Korea Patent Publication No. 10-2006-0117466 (Published on December 14, 2005) [Patent Document 2] Republic of Korea Patent Registration Publication No. 10-1573410 (Registered November 25, 2015) [Patent Document 3] Republic of Korea Patent Registration Publication No. 10-2137503 (Registered on July 24, 2020) [Patent Document 4] Republic of Korea Patent Registration Publication No. 10-2490580 (Registered on January 16, 2023) Summary of the Invention [Problem to be solved by the invention]

[0009] The present invention has been devised to solve the above-mentioned problems, and aims to provide an exercise device that allows the weight of the weight to be adjusted by adjusting the elastic force applied to the wire.

[0010] Another object of the present invention is to provide an exercise machine that can be used in a small space and whose installation position can be easily changed to a wall surface or a bottom surface as needed.

[0011] Another object of the present invention is to provide an exercise machine that increases the durability of the elastic module and allows the spring to move smoothly during muscle exercise using wires.

[0012] Another object of the present invention is to provide an exercise device that can reduce the friction between the spring gear and the wire roller, which are components of the elastic module, to allow the spring to move smoothly, thereby improving the user's exercise convenience. [Means for solving the problem]

[0013] In order to achieve the above object, the present invention provides an exercise machine including a case having a space formed therein, an elastic module installed in the space to provide elastic force to a wire extending outside the case, and an adjustment module installed on one side of the elastic module to adjust the elastic force applied to the wire, wherein the elastic module includes a wire roller around which the wire is wound, a rotary shaft that rotates integrally with the wire roller, a spring gear rotatably installed on the rotary shaft, and a spiral spring installed inside the spring gear to provide elastic force to the wire, the spring gear comprising a gear body open on one side to allow the spiral spring to be inserted, a cover connected to the gear body open on one side and having radial protrusions on an inner surface that contacts the spiral spring, and a spring fixing device to which an inner end of the spiral spring is fixed and fixed to the rotary shaft.

[0014] In the present invention, the wire roller comprises a shaft hole portion fixed to the rotating shaft so as to be inserted into the rotating shaft and rotate the rotating shaft, a connecting bar extending radially from the shaft hole portion, and a winding groove portion formed in a ring shape at the outer end of the connecting bar and in which the wire is wound.

[0015] In the present invention, the upper and lower ends of the shaft hole are formed higher than the upper and lower ends of the connecting bar and winding groove.

[0016] In the present invention, the connecting bar is formed lower than the upper and lower ends of the winding groove.

[0017] The spring fixing device of the present invention is characterized in that it has a bending groove formed therein so that the inner end of the spiral spring can be bent and fixed.

[0018] The case of the present invention is characterized by including a bottom surface that contacts the ground and an inclined surface that is formed on the bottom surface so as to be inclined upward at a certain angle.

[0019] The present invention is characterized in that the inclination angle of the inclined surface is 10 to 20°. [Effects of the Invention]

[0020] According to the exercise equipment of the present invention, the weight of the weight is adjusted by adjusting the elastic force applied to the wire, so no separate weight block is required, and therefore there is no risk of a falling accident occurring when changing or adding weight blocks as in the conventional equipment, thereby improving safety.

[0021] Furthermore, the exercise equipment according to the present invention is cheaper than conventional exercise equipment using weight blocks, does not require much installation space, and is easy to set up and move.

[0022] Furthermore, the exercise equipment according to the present invention has a compact size, which makes it easy to store, maintain and repair.

[0023] In addition, the exercise device according to the present invention has the advantage of minimizing the friction between the spiral spring of the elastic module and the spring gear, thereby reducing noise during exercise and allowing the spring to move smoothly.

[0024] Furthermore, the exercise equipment according to the present invention has the advantage of being highly durable since the spiral spring is firmly fixed inside the spring gear. [Brief explanation of the drawings]

[0025] [Figure 1] 1 is a top perspective view of an exercise device according to an embodiment of the present invention; [Figure 2] 1 is an exploded perspective view of an exercise device according to an embodiment of the present invention; [Figure 3] FIG. 2 is an exploded perspective view of the upper case of FIG. 1. [Figure 4] FIG. 2 is an exploded perspective view of the lower side of the upper case of FIG. 1. [Figure 5] FIG. 2 is a perspective view showing the state of FIG. 1 with the upper case removed. [Figure 6] FIG. 6 is an exploded perspective view of FIG. 5. [Figure 7] FIG. 2 is a side view showing the angle of the inclined surface of the exercise machine of FIG. 1. [Figure 8] FIG. 1 is a perspective view of a resilient module and an adjustment module. [Figure 9] FIG. [Figure 10] FIG. [Figure 11] FIG. [Figure 12] FIG. [Figure 13] 2A and 2B are a perspective view and a side view of a wire roller. [Figure 14] 2A and 2B are a perspective view and a side view of a wire roller. [Figure 15] FIG. 2 is a diagram illustrating the operation of the adjustment module. [Figure 16] FIG. 10 is a diagram showing the operation state of the regulation module. [Figure 17] FIG. 10 is a plan view of the rotating member of the adjustment module. [Figure 18] 10 is a perspective view of another embodiment of the exercise apparatus according to the present invention, which is installed on a vertical support base. FIG. [Figure 19] FIG. 19 is an enlarged perspective view of the rear side of FIG. 18. [Figure 20] FIG. 19 is an exploded perspective view of the rear side of FIG. 18. DETAILED DESCRIPTION OF THE INVENTION

[0026] Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the embodiments described below are merely intended to be detailed enough to enable a person skilled in the art to which the present invention pertains to easily carry out the invention, and are not intended to limit the scope of protection of the present invention. In addition, in describing various embodiments of the present invention, the same reference numerals will be used for components having the same technical features.

[0027] Example 1 and 2 are perspective views of an exercise device according to one embodiment of the present invention, and FIGS. 3 and 4 are exploded perspective views of the exercise device shown in FIGS. 1 and 2, respectively.

[0028] The exercise device 100 according to one embodiment of the present invention is a device for muscle exercise, and has a wire 200 extending from both sides of the upper side of a case 300, and an elastic module 600 for providing elastic force to the wire 200 and an adjustment module 700 for adjusting the elastic force installed inside the case 300.

[0029] The end of the wire 200 pulled out from the case 300 is provided with a grip (not shown) so that the user can hold it, such as a handle, or pull it with a part of the body such as an arm or leg. After pulling the wire 200, when the force is released, the wire 200 is pulled back into the case 300 by the elastic force provided by the elastic module 600.

[0030] As a result, the user can exercise their muscles by holding the grips, vigorously pulling the wire 200, then placing it down and repeating the pulling motion. As an example, the user can stand on the top side of the case 300 and exercise by pulling the wire 200 in the vertical direction of the body with both hands. As another example, the user can exercise by fixing the case 300 to a wall or a vertical support stand 10 (see FIG. 18) and pulling the wire 200 in the front-to-back direction of the body.

[0031] An exercise device 100 according to one embodiment of the present invention includes a case 300, a wire 200 extending from the inside of the case 300 to the outside, an elastic module 600 installed inside the case 300 to provide elastic force to the wire 200, and an adjustment module 700 installed on one side of the elastic module 600 to adjust the elastic force applied to the wire 200.

[0032] Case 300 includes a lower case 400 and an upper case 500 that are separably coupled to each other in the vertical direction. Case 300 shown in the drawings has an overall rectangular oval shape with the middle portion of one long side slightly protruding outward, but this is only one embodiment of the present invention, and the overall external shape of case 300 can be appropriately selected as needed.

[0033] The lower case 400 has an open top and a hollow space formed therein to accommodate the elastic module 600 and the adjustment module 700. The upper case 500 is detachably coupled to the upper end of the lower case 400.

[0034] 3 and 4 are exploded perspective views of the upper case.

[0035] 3 and 4, the upper case 500 includes an upper frame 510 coupled to the upper end of the lower case 400, and an upper plate 520 coupled to the upper side of the upper frame 510. A low step is formed around the upper surface of the upper frame 510, and the upper plate 520 is inserted into and coupled to the upper surface of the upper frame 510.

[0036] A first through-hole 511 is formed on one side of the center of the upper frame 510, and the upper end of a module housing 410 (see FIG. 5) described below protrudes to the top of the case 300 through this first through-hole 511 and a second through-hole 521 in an upper plate 520 described below. A plurality of circular reinforcing ribs 519 are formed on both sides of the first through-hole 511 to support the weight when a user stands on the upper case 500. The reinforcing ribs 519 are combined with reinforcing ribs 403 of the lower case to fix the case in place.

[0037] In addition, a pair of outlet portions 513 are protruded from both sides in the length direction of the upper frame 510. At this time, the upper surface of the outlet portion 513 may be curved with a concave center, and an outlet hole 514 for outletting the wire 200 is formed through one side of the upper surface of the outlet portion 513. A guide roller 515 for guiding the outlet direction of the wire 200 is rotatably installed below the outlet portion 513 on the bottom surface of the upper frame 510 so that the wire 200 can be outlet to the outside of the case 300 through the outlet hole 514. In addition, the upper frame 510 is provided with a mounting hole 512 in which a mount housing 517 of a mount portion 516 can be fixed in position.

[0038] Additionally, a pair of mounts 516 are provided on the bottom surface of upper frame 510, one on each side of first through hole 511. These mounts 516 are used to connect a separate support to case 300 when exercise device 100 is attached to the support, and include a mount housing 517 connected to the bottom surface of upper frame 510, a connecting lever 518 protruding from the bottom of mount housing 517 and connected to the support, and an elastic member (not shown) installed within mount housing 517 to elastically support connecting lever 518.

[0039] The connecting lever 518 can be housed inside the case 300, and when necessary, by rotating the connecting lever 518, the connecting lever 518 can be protruded to the outside through the sixth through-hole 450 (see FIG. 7) of the lower case 400 by the elastic member and can be connected to the support base.

[0040] The upper plate 520 is coupled to the upper surface of the upper frame 510, and has a second through-hole 521 formed at one side of the center to communicate with the first through-hole 511 of the upper frame 510, and third through-holes 522 formed on both sides in the length direction to correspond to the lead-out portion 513 of the upper frame 510. When the upper frame 510 and the upper plate 520 are coupled, the lead-out hole 514 is exposed through the third through-hole 522, and the wire 200 is led out to the outside through the lead-out hole 514.

[0041] 5 is a perspective view showing the state of FIG. 1 with the upper case removed, and FIG. 6 is an exploded perspective view of FIG.

[0042] As shown in Figures 5 and 6, an elastic module 600 and an adjustment module 700 are installed inside the module housing 410, and when the upper case 500 and the lower case 400 are combined, the upper end of the module housing 410 protrudes above the upper case 500 through the first and second through holes 511 and 521.

[0043] The module housing 410 includes a lower inner housing 420 coupled to one side of the bottom surface of the lower case 400, an upper inner housing 440 covering the upper part of the lower inner housing 420, and an outer housing 430 having a lower end coupled around a first through-hole 511 of the upper frame 510 and an upper end protruding above the upper frame 510 through the first through-hole 511. When the upper case 500 and the lower case 400 are coupled together, the outer housing 430 surrounds and protects the upper inner housing 440 and the lower inner housing 420. The outer housing 430 further includes a fifth through-hole 433 through which a cover 432, an adjustment knob 840, and a shaft 810 can be installed. In addition, a fourth through-hole 431 is formed on the upper surface of the outer housing 430 so that a shaft 810 of a rotating member 800 (described later) can be vertically installed, and the fourth through-hole 431 is connected to the fifth through-hole 433.

[0044] 7 is a side view of exercise machine 100. As shown in the drawing, lower case 400 includes bottom surface 401 that comes into contact with the ground and inclined surface 402 that forms a certain angle (Θ) with bottom surface 401. Inclined surface 402 is configured to allow the user to balance themselves properly and exercise properly while exercising, thereby helping them to become familiar with correct posture. The angle (Θ) that inclined surface 402 forms with the ground is 10 to 20 degrees. Preferably, it is formed to be about 16 degrees.

[0045] 8 is a perspective view of the elastic module and the adjustment module, and it should be noted that for the sake of convenience, the elastic module 600 housed in the one-side housing portion 421 has been removed.

[0046] 8, an elastic module 600 and an adjustment module 700 are installed in a lower inner housing 420. More specifically, a pair of receiving portions 421 are formed inside the inner housing 420, spaced apart by a predetermined distance, and an elastic module 600 is accommodated in each receiving portion 421. That is, a pair of elastic modules 600 are installed inside the lower inner housing 420, spaced apart by a predetermined distance, and the adjustment module 700 is installed between the pair of elastic modules 600.

[0047] Meanwhile, guide holes 422 for drawing out the wire 200 are formed on both sides of the lower end of the lower inner housing 420 so as to communicate with the receiving portion 421. One end of the wire 200 is wound around the elastic module 600, and the other end is drawn out to the outside of the inner housing 420 through the guide hole 422, and then extends to the outside of the case 300 through the drawing hole 514 via the above-mentioned guide roller 515. 9 and 10 are exploded perspective views of the elastic module.

[0048] The elastic module 600 serves to provide elastic force to the wire 200 and includes a wire roller 610 around which the wire 200 is wound, a rotating shaft 620 that rotates integrally with the wire roller 610, a spring gear 630 rotatably installed on the rotating shaft 620, and a spiral spring 660 that provides elastic force to the wire 200.

[0049] 9 and 10, wire roller 610 and a plurality of spring gears 630 are stacked vertically and housed in receiving portion 421 of lower inner housing 420. Rotation shaft 620 is installed vertically, passing through the center of wire roller 610 and the plurality of spring gears 630. Wire roller 610 is coupled to rotation shaft 620 to rotate integrally with it, and spring gear 630 is coupled to rotation shaft 620 to be freely rotatable.

[0050] The spring gear 630 includes a body 640 having a receiving portion 641 formed therein and a plurality of gear teeth 642 protruding from the outer periphery, and a cover 650 attached to the upper side of the body 640 to hide the receiving portion 641. A spiral spring (also known as a 'fetal spring') 660 is installed in the receiving portion 641 inside the body 640.

[0051] One end of the spiral spring 660 is connected to a spring fixture 670, which is fixedly connected to the rotating shaft 620, and the other end is connected to the inner surface of the body 640 of the spring gear 630. As a result, when the wire roller 610 rotates due to the drawing out of the wire 200, the rotating shaft 620, which is integrally connected to the wire roller 610, rotates together, and when the rotating shaft 620 rotates, the spiral spring 660, one end of which is connected to the rotating shaft 620, is elastically deformed to transmit a rotational force to the spring gear 630.

[0052] At this time, if the rotation of the spring gear 630 is forcibly restricted, the rotational force of the rotating shaft 620 is accumulated in the spiral spring 660, and the elastic force of the spiral spring 660 increases, thereby increasing the elastic force acting on the wire 200. Therefore, if the force pulling the wire 200 is removed, the wire roller 610 rotates in the reverse direction together with the rotating shaft 620 due to the elastic force of the spiral spring 660, and the wire 200 is wound around the wire roller 610.

[0053] To this end, at least one locking protrusion 423 (see FIG. 8) is formed along the inner circumferential surface of the receiving portion 421 to engage with at least one of the plurality of spring gears 630 and limit the rotation of the spring gear 630. For example, as shown in FIG. 8, a plurality of locking protrusions 423 may be formed protruding along the inner circumferential surface of the lower end of the receiving portion 421 so as to limit the rotation of the lowest spring gear 630 among the plurality of spring gears 630.

[0054] The spring gear 630, whose rotation is restricted by the locking protrusion 423, provides the basic rotational force that can wind the wire 200 onto the wire roller 610 through the elastic deformation of the spiral spring 660, thereby applying an elastic force to the wire 200 when the user pulls the wire 200.

[0055] 11, upper spring gears 631, 632, 633, and 634 are made up of a gear body 640 that is open on one side so that spiral spring 660 can be inserted, a cover 650a that is connected to the gear body with an open side and has radial protrusions 651a formed on its inner surface that contacts spiral spring 660, and a spring fixture 670 to which the inner end of spiral spring 660 is fixed and secured to rotating shaft 620. Because spiral spring 660 is inserted into spring gear 630, it comes into contact with the top or bottom of spring gear 630, thereby generating friction. To minimize this friction, radial protrusions 651a are formed on the bottom of cover 650a. Cover 650a also has a coupling hole 652a for coupling with gear body 640. The spring fixture 670 is formed with a bent groove 671 to which the inner end of the spiral spring 660 is coupled, and a pair of bent grooves 671 may be formed on both sides for ease of use. The spring gears 630 installed on the rotating shafts 620 on both sides are installed oppositely on the left and right. That is, since the cover 650 is installed on one side in an upper position and the cover 650 is installed on the other side in a lower position, a pair of bent grooves 671 may be formed on both sides for ease of installation of the spiral spring 660.

[0056] 12 shows the lower spring gear 635. As shown in the drawing, the spring gear 635 comprises a gear body 640 that is open on one side to allow the insertion of the spiral spring 660, a cover 650b that is connected to the gear body with an open side and has radial protrusions 651b formed on its inner surface that contacts the spiral spring 660, and a spring fixture 670 to which the inner end of the spiral spring 660 is fixed and secured to the rotating shaft 620. Similar to the upper spring gear, the bottom surface of the cover 650b has radial protrusions 651b to minimize friction with the spiral spring 660. The lower cover 650b also has a coupling hole 652b for coupling with the gear body 640. The spring fixture 670 has a bent groove 671 to which the inner end of the spiral spring 660 is coupled, and the bent grooves 671 may be formed in pairs on both sides for ease of use. The spring gears 630 installed on the rotating shafts 620 on both sides are installed oppositely on the left and right sides. That is, one side is installed with the cover 650 located on the upper side and the other side is installed with the cover 650 located on the lower side, so that a pair of bending grooves 671 can be formed on both sides to facilitate the installation of the spiral spring 670.

[0057] 13 and 14 show wire roller 610. Wire roller 610 comprises shaft hole 613, into which shaft 620 is inserted to fix the position of shaft 620 so as to rotate shaft 620, connecting bar 612 extending radially from shaft hole 613, and winding groove 611, which is formed in a ring shape at the outer end of connecting bar 612 and into which wire 200 is wound. As shown in FIG. 14, shaft hole 613 of wire roller 610 is formed to protrude slightly from the surface of winding groove 611. This is to prevent friction between wire roller 610 and spring gear 630 during use and ensure smooth rotation of wire roller 610.

[0058] In the present invention, the adjusting module 700 adjusts the rotational force applied to the rotating shaft 620 by the elastic force of the spiral spring 660 and the elastic force applied to the wire 200 accordingly.

[0059] In conventional strength exercise devices, the weight can be adjusted by adding or removing weight blocks as needed, but in the exercise device 100 of the present invention, the spiral springs 660 function as weight blocks. That is, the weight required for strength exercise can be adjusted by increasing or decreasing the number of spiral springs 660 (or the number of spring gears 630 whose rotation is restricted) that provide elastic force to the wire 200.

[0060] Referring to FIG. 2, the adjustment module 700 includes a rotating member 800 installed on one side of the elastic module 600 and a hook member 900 elastically supported toward the rotating member 800. The rotation of the rotating member 800 causes the hook member 900 to move forward and backward, thereby locking / unlocking the spring gear 630, thereby adjusting the elastic force applied to the wire 200.

[0061] As shown in the drawing, a rotation member 800 may be installed vertically between a pair of elastic modules 600. Referring to Fig. 8, the rotation member 800 includes a shaft portion 810 rotatably installed, a plurality of locking portions 820 spaced apart from each other in the height direction of the shaft portion 810 and extending in width, and an adjustment knob 840 formed on the upper end of the shaft portion 810 and exposed to the top of the module housing 410. The locking portions 820 face the spring gears 630 and the hook members 900 (described later), respectively, and the locking portions 820 have locking grooves 830 formed on their outer circumferential surfaces so that the insertion portions 920 of the hook members 900 (described later) can be inserted therein.

[0062] The hook member 900 is installed on one side of the inner housing 420. At this time, a plurality of the hook members 900 may be installed facing the plurality of spring gears 630 and the plurality of locking portions 820.

[0063] For example, a mounting portion 424 for mounting the hook member 900 may be formed on one side of the inner housing 420, and a plurality of sliding spaces 425 (see FIG. 2) may be defined and formed in the mounting portion 424 in the vertical direction. The hook member 900 is slidably inserted into each sliding space 425 and is elastically supported in the direction of the rotation member 800 and the spring gear 630 by an elastic body 940 such as a coil spring. In addition, a back plate 426 is coupled to the rear surface of the mounting portion 424 to prevent the hook member 900 from coming off, and a plurality of guide grooves 427 (see FIG. 8) are formed through the center and both sides of the front surface of the mounting portion 424 so that an insertion portion 920 and a locking protrusion 930 of the hook member 900, which will be described later, can protrude into the receiving portion 421.

[0064] The hook member 900 includes a plate-shaped sliding body 910 (see FIG. 15), an insertion portion 920 protruding from the front end of the sliding body 910, locking protrusions 930 protruding from the front ends of both sides of the sliding body 910 toward the spring gear 630, and an elastic body 940 such as a coil spring that elastically supports the sliding body 910.

[0065] The hook member 900 mounted in the sliding space 425 has its insertion portion 920 facing the locking portion 820 of the rotating member 800, and its locking protrusion 930 facing the spring gear 630. When the locking protrusion 930 engages with the teeth 642 of the spring gear 630 as the hook member 900 slides, the rotation of the spring gear 630 is restricted, and when the rotating shaft 620 rotates due to the withdrawal of the wire 200, an elastic force is accumulated in the spiral spring 660 inside the spring gear 630.

[0066] Therefore, the user can adjust the elastic force applied to the wire 200 by increasing or decreasing the number of spring gears 630 whose rotation is restricted by the hook members 900. That is, as the number of spring gears 630 whose rotation is restricted by the hook members 900 increases, the number of spiral springs 660 that are elastically deformed by the rotation of the wire roller 610 and the rotating shaft 620 increases, and the elastic force applied to the wire 200 from the spiral springs 660 via the rotating shaft 620 increases, producing the same effect as increasing the weight by adding a weight block in the past.

[0067] 15 and 16 are operational state diagrams of the regulation module.

[0068] A user can adjust the elastic force applied to the wire 200 by rotating the rotating member 800. For example, when all of the hook members 900 are spaced apart from the spring gears 630 as shown in Fig. 15, only the spiral spring 660 of the spring gear 630 (e.g., the lowest spring gear 630) whose rotation is restricted by the locking protrusion 423 provides elastic force to the wire 200.

[0069] Here, when the rotating member 800 is rotated in one direction as shown in FIG. 16 , the hook member 900 advances toward the rotating member 800 due to the elastic force of the elastic body 940, and the insertion portion 920 of the hook member 900 is inserted into the locking groove 830 of the locking portion 820.

[0070] At this time, the locking protrusions 930 of the hook member 900 engage with the teeth 642 of the spring gear 630, thereby restricting the rotation of the spring gear 630 and increasing the number of spiral springs 660 that provide elastic force to the wire 200. That is, in addition to the spiral spring 660 of the spring gear 630 (e.g., the lowest spring gear 630) whose rotation is restricted by the conventional locking protrusions 423, the spiral spring 660 of the spring gear 630 (e.g., the highest spring gear 630) whose rotation is restricted by the hook member 900 also applies elastic force to the wire 200.

[0071] A plurality of spring gears 630 are stacked along the rotation axis 620 in the receiving portion 421 of the lower inner housing 420, and hereinafter, starting from the topmost spring gear 630, they will be referred to as a first spring gear 631 (see FIG. 9), a second spring gear 632, a third spring gear 633, a fourth spring gear 634, and a fifth spring gear 635. Here, the bottommost spring gear 630 whose rotation is restricted by the locking protrusion 423 corresponds to the fifth spring gear 635, and a wire roller 610 may be interposed between the fourth spring gear 634 and the fifth spring gear 635.

[0072] In addition, the plurality of hook members 900 may be divided into a first hook member 901 (see FIG. 2), a second hook member 902, a third hook member 903, and a fourth hook member 904, in that order from the top hook member 900. The first to fourth hook members 901 to 904 face the first to fourth spring gears 631 to 634, respectively, and increase the elastic force applied to the wire 200 by restricting the rotation of the first to fourth spring gears 631 to 634 in turn as the rotating member 800 rotates, which will be described in detail below with reference to FIG.

[0073] FIG. 17 is a plan view of the rotating member of the adjustment module.

[0074] As shown in FIG. 17, a plurality of locking portions 820 are each formed with a locking groove 830. Hereinafter, the uppermost locking portion 820 formed on the rotating member 800 will be referred to as the first locking portion 821, and the locking portions below it will be referred to as the second, third, and fourth locking portions 822, 823, and 824, respectively.

[0075] The first retaining portion 821 has a total of four locking grooves 830 formed at 45° intervals, and the second retaining portion 822 has a total of three locking grooves 830 formed at 45° intervals. The angular interval between adjacent pairs of locking grooves 830 can be selected as needed. The third retaining portion 823 has a total of two locking grooves 830 formed at 45° intervals, and the fourth retaining portion 824 has one locking groove 830 formed.

[0076] At this time, the second locking groove 830 of the first locking portion 821 is formed on the same vertical line as the first locking groove 830 of the second locking portion 822, and the third locking groove 830 of the first locking portion 821 is formed on the same vertical line as the second locking groove 830 of the second locking portion 822 and the first locking groove 830 of the third locking portion 823. In addition, the fourth locking groove 830 of the first locking portion 821 is formed on the same vertical line as the third locking groove 830 of the second locking portion 822, the second locking groove 830 of the third locking portion 823, and the locking groove 830 of the fourth locking portion 824.

[0077] That is, based on the plan view shown in FIG. 17, the locking groove 830 of the first locking portion 821 is formed at a fulcrum (A) approximately 45° counterclockwise from the contact fulcrum (O) of the insertion portion 920 of the hook member 900, and the locking grooves 830 of the first locking portion 821 and the second locking portion 822 are formed so as to overlap each other at a fulcrum (B) approximately 90° counterclockwise from the contact fulcrum (O) of the insertion portion 920 of the hook member 900. Furthermore, the locking grooves 830 of the first locking portion 821, the second locking portion 822, and the third locking portion 823 are formed to overlap at a fulcrum (C) approximately 135° counterclockwise from the contact fulcrum (O) of the insertion portion 920 of the hook member 900, and the locking grooves 830 of the first locking portion 821, the second locking portion 822, the third locking portion 823, and the fourth locking portion 824 are formed to overlap at a fulcrum (D) approximately 180° counterclockwise from the contact fulcrum (O) of the insertion portion 920 of the hook member 900.

[0078] 13, when the rotating member 800 is rotated clockwise by approximately 45 degrees, the first hook member 901 advances toward the rotating member 800 due to the elastic force of the elastic body 940, and the insertion portion 920 is inserted into the locking groove 830 of the first locking portion 821 (fulcrum A). At this time, the second to fourth hook members 902 to 904 do not move but maintain their original positions, and the locking protrusion 930 of the first hook member 901 meshes with the first spring gear 631, restricting the rotation of the first spring gear 631.

[0079] Here, if the rotating member 800 is further rotated approximately 45° clockwise, the insertion portions 920 of the first and second hook members 901, 902 are inserted into the locking grooves 830 of the first and second locking portions 821, 822 (fulcrum B). At this time, the third and fourth hook members 903-904 do not move and maintain their positions, and the locking protrusions 930 of the first and second hook members 901, 902 mesh with the first and second spring gears 631, 632, restricting the rotation of the first and second spring gears 631, 632.

[0080] Thereafter, when the rotating member 800 is further rotated clockwise by approximately 45 degrees, the insertion portions 920 of the first through third hook members 901-903 are inserted into the locking grooves 830 of the first through third locking portions 821-823 (fulcrum C). At this time, the fourth hook member 904 does not move and maintains its position, and the locking protrusions 930 of the first through third hook members 901-903 mesh with the first through third spring gears 631-633 to restrict the rotation of the first through third spring gears 631-633.

[0081] Thereafter, when the rotating member 800 is further rotated clockwise by approximately 45 degrees, the insertion portions 920 of the first to fourth hook members 901-904 are inserted into the locking grooves 830 of the first to fourth locking portions 821-824 (fulcrum D). At this time, the locking protrusions 930 of the first to fourth hook members 901-904 mesh with the first to fourth spring gears 631-634, restricting the rotation of the first to fourth spring gears 631-634.

[0082] That is, each time the rotating member 800 is rotated clockwise by approximately 45° increments in the drawing, the number of spring gears 630 whose rotation is restricted by the hook member 900 increases, and as a result, the number of spiral springs 660 that provide elastic force to the wire 200 through the rotating shaft 620 increases, and the elastic force, i.e., weight, applied to the wire 200 increases.

[0083] Meanwhile, in the exercise device 100 according to an embodiment of the present invention, the case 300 is placed on the bottom, and the user stands on the case 300 and pulls the wires 200 on both sides to perform muscle strengthening exercises.

[0084] In another embodiment, the exercise equipment 100 can be installed vertically on a wall or a separate vertical support stand 10, and FIG. 18 shows the exercise equipment installed on such a separate vertical support stand.

[0085] 19 is a rear perspective view of the exercise device 100 mounted on the vertical support 10. As shown in the drawing, the exercise device 100 can be connected to the vertical support 10 via a mounting part 20. The mounting part 20 includes a front connector 27 formed to engage with a connecting lever 518 protruding from the bottom of the lower case 400, a hook connector 26 attached to the rear of the front connector 27 and secured by engaging the connecting lever 518, a middle connector 24 connected to the rear of the front connector 27, a racking connector 23 connected to the bottom of the middle connector 24, a rear connector 22 connected to the rear of the racking connector 23, and a support guide fixture 21 installed on the rear of the rear connector 22 to guide and fix the vertical support 10 in place. The racking connector 23 further includes a lever 25 for inserting a locking bar 251 into a hole 11 formed in the vertical support 10. Additionally, the locking bar 251 may be elastically racked and unracked by a spring 252 .

[0086] Although the embodiments of the present invention have been described above, it will be understood that those skilled in the art will be able to implement the present invention in various modified forms without departing from the scope of the claims of the present invention. [Explanation of symbols]

[0087] 100 exercise equipment 200 wire 300 cases 400 Lower Case 410 Module Housing 420 Lower inner housing 430 outer housing 440 Upper inner housing 500 upper case 510 Upper Frame 520 Upper Plate 600 elastic modules 610 Wire Roller 620 Rotational Axis 630 Spring Gear 660 Spiral Spring 700 Adjustment Module 800 Rotating Members 810 Shaft 820 System stopping part 840 Adjustment Knob 900 Hook parts

Claims

1. An exercise machine comprising: a case having a space formed therein; an elastic module installed in the space to provide elastic force to a wire extending to the outside of the case; and an adjusting module installed on one side of the elastic module to adjust the elastic force applied to the wire, the elastic module includes a wire roller around which the wire is wound, a rotary shaft that rotates integrally with the wire roller, a spring gear rotatably installed on the rotary shaft, and a spiral spring installed inside the spring gear to provide elastic force to the wire, the spring gear comprises a gear body that is open on one side so that the spiral spring can be inserted; a cover that is connected to the gear body that is open on one side and has radial protrusions on an inner surface that contacts the spiral spring; and a spring fixing device to which an inner end of the spiral spring is fixed and which is fixed to the rotating shaft.

2. The wire roller 2. The exercise equipment of claim 1, comprising: a shaft hole portion fixedly attached to the rotating shaft so as to be inserted into the rotating shaft to rotate the rotating shaft; a connecting bar extending radially from the shaft hole portion; and a winding groove portion formed in a ring shape at an outer end of the connecting bar, in which the wire is wound.

3. 3. The exercise device of claim 2, wherein the upper and lower ends of the shaft hole portion are higher than the upper and lower ends of the connecting bar and the winding groove portion.

4. The exercise device of claim 3, wherein the connecting bar is formed lower than the upper and lower ends of the winding groove portion.

5. 5. The exercise equipment of claim 4, wherein the spring fixing member has a bending groove formed therein so that an inner end of the spiral spring can be bent and fixed.

6. The exercise equipment according to claim 5 , wherein the case includes a bottom surface that contacts the ground and an inclined surface that is inclined upward at a predetermined angle from the bottom surface.

7. 7. The exercise equipment according to claim 6, wherein the inclination angle of the inclined surface is 10 to 20 degrees.

Images