KR20120026003A - Improved abdominal exerciser with rotatable seat and tandem pulley features - Google Patents

Abstract

PURPOSE: A rotatable seat and abdominal muscles exercise machine including a column pulley feature are provided to move an abdominal muscles exercise machine between a standing location and a lying location by including a back and a seat frame unit. CONSTITUTION: A seat cushion(30) includes a front end and a back end unit. The supporting area of a horizontal member is connected with a journal pillar in order to support weights of a user. When the user sits on the seat cushion, the back of the user is contacted with a back cushion(20). The coccyx of the user is perpendicularly arranged at the journal pillar. Each arm unit(50) includes a handle unit(50c) and extension units(50a, 50b). The admissible space of the user is increased by each arm unit.

Description

IMPROVED ABDOMINAL EXERCISER WITH ROTATABLE SEAT AND TANDEM PULLEY FEATURES}

FIELD OF THE INVENTION The present invention relates generally to the field of exercise devices, and more particularly to new and useful abs workouts with seat and back support structures.

A wide variety of exercise devices and techniques are known for training the abdominal and back muscles. Of these, the most common, however, is a sit-up or crunch, also known to apply negative pressure to the back and neck muscles.

US Pat. Nos. 7,381,171 and D581,471, both of which are incorporated herein by reference, describe absorptive motors co-invented by the inventors of the present application. Along with the effect for training the abdominal and back muscles, the present application discloses the improvements found as a result of the inventors' understanding and use of the dynamics of existing devices.

There is still a need for further improvement in the abdominal muscle exercise device that improves the training of the belly and back muscles while avoiding negative pressure on the back and neck muscles.

An object of the invention is at least one connected to a base frame, a back frame pivotally mounted near the rear end of the base frame for movement between standing and lying positions, and at least one back frame for supporting the user's back. It is to provide an abs exerciser having a back cushion, a seat frame mounted to rotate on the base frame, and a seat cushion fixed to the seat frame on which the user sits. A low friction journal bushing having a journal post rotatably mounted therein is operatively connected between the base and seat frames to support the user's weight. The bushing and the strut are at about 30% to about 42% of the distance from the rear end of the seat cushion to the front end of the seat cushion, such that when his or her back touches the back cushion and the user sits on the seat cushion The tailbone is substantially aligned with the bushings and the strut substantially vertically. The arm on each side of the base frame has a pair of extensions that connect to either the base frame or the seat frame. Each arm has a U-shaped handle that lies in a plane extending at an acute angle of about 30 degrees to about 80 degrees with respect to the horizontal plane. A pair of pulleys are mounted to rotate near the rear end of the base frame and engage springs with elastic sleeves thereon, the springs being between the base and the back frames to bias the back frame towards the forward standing position. Connected.

Yet another object of the present invention is to enable pivoting about the base frame lying in a horizontal plane on the floor and respective rear ends of respective side members of the base frame to move between the forward standing position and the lying back position. A back frame having a pair of side members to be mounted, a plurality of back cushions connected between the side members of the back frame and spaced along the side members, and connected between the front and rear members and the front and rear members A seat frame having an H shape, a seat cushion fixed to the seat frame and placed on the front, rear and transverse members of the seat frame, and having a vertically extending bore; A low friction journal bushing connected to the transverse member and the other transverse member of the base and seat frames A journal strut, an arm on each side of the base frame, and a respective side of the base frame near the rear end of the base frame, which is accommodated to rotate in the low friction journal bushing so that the seat cushion can rotate relative to the base frame. And a tension spring connected between the base frame and the back frame side members to deflect the back frame toward the forward standing position, and an elastic sleeve covering each spring, the base frame being a pair Having a transverse member connected between the side members of the base frame and the side members of the base frame, the seat cushion having a front end and a rear end, and the supporting region of the transverse member around the journal post and to which the journal post is connected Low friction journal bushings and weights to support the weight of the user The position of the low friction journal bushings and the journal struts accommodated therein are at about 30% to about 42% of the distance from the rear end of the seat cushion to the front end of the seat cushion to the back cushions. Is abutted and the user's tailbone is aligned substantially vertically with the low friction journal bushings and the journal struts received therein, each arm being connected to one of the base frame and the seat frame. Having arms in pairs, each arm with handles of arms on opposite side portions of the base frame extending outward from each other to increase the available space of the user sitting on the seat cushion and to facilitate the user access to the handle; U-shaped handles that lie together in a plane extending at an acute angle of about 30 degrees to about 80 degrees with respect to the horizontal plane Each of the elastic sleeve, comprising: a is to provide, abdominal muscle exercise equipment in combination with one of the pulleys.

Various novel features that characterize the invention are specifically set forth in the claims appended to and forming a part thereof. For a better understanding of the present invention, the specific objects and operating advantages achieved by its uses, reference is made to the accompanying drawings and the description of the preferred embodiments of the invention.

In the drawings,
1 is a side, front and top perspective view of an abdominal muscle exercise device embodying the present invention in a ready position and an anterior standing position waiting to be used by the user to train the abdominal and back muscles of the user.
FIG. 2 is a view of the device similar to that of FIG. 1 but with cushions and a back frame moved from an anterior standing position to a lying back position to train the back muscles of a user (not shown) sitting on the device; .
3 is a view of the device similar to that of FIG. 2, with the back frame and cushions moved to the lying position and the seat frame and cushion of the device rotated to the left as far as possible to further strengthen the lateral muscles of the user's abs.
FIG. 4 is similar to FIG. 3, wherein the seat frame and cushion are rotated as far as possible to the right to further strengthen the lateral muscles of the user's abs.
FIG. 5 is a front and micro perspective view of the device for showing the angular extension of the U-shaped handles of the arms of the device that are not vertical, for improved access to the handle and improved space on the seat cushion. FIG.
FIG. 6 is a side and microscopic perspective view of the device showing the user sitting on the seat cushion to show the low friction of the device, the location of the weight bearing journal and the vertical arrangement with the base of the user's spine.
Figure 7 is a plan view of the device, showing the position of the journal with respect to the front and rear ends of the seat cushion.
8 is an exploded perspective view of the abdominal muscle exercising apparatus of the present invention.
9 is a front perspective view of an alternative embodiment of the device in which the arms are fixed to the seat frame rather than the base frame.
Fig. 10 is an enlarged side view of the fastening pin holding the seat frame in the non-rotatable position of the base frame.
11 is an enlarged, exploded cross-sectional view of the journal area of the device.
12 is a partial, rear, perspective view of another embodiment of the present invention having a safety band covering the pulleys and the springs in addition to the springs covered with the resilient sleeve and the column pulleys on each side of the base and back frames.

The same reference numbers in the drawings are used to indicate the same or similar components. Referring now to the drawings, FIGS. 1 and 8 show an abs training device 10 comprising a base frame 12 lying in a horizontal plane on the floor. The base frame has a horizontal member 12c connected between the pair of side members 12a and 12b and the side members of the base frame, for example by welding. The members 12a, 12b, and 12c are preferably squared with metal tubes of rectangular cross section. The back frame 14 having a pair of side members 14a and 14b is a base frame for moving between a forward standing position as shown in FIG. 1 and a rear lying position as shown in FIG. Is pivotally mounted to a pair of auricles 13 near and at the rear ends of each of the side members 12a and 12b of a. A bolt 15 extends through the aligned holes in the pair of pinwheels 13 on each side of the base frame 12 to retain the back frame side members 14a and 14b in the base frame, It forms the axle of one or two pulleys 60 mounted to rotate about each side of the frame 12. The plurality of bag cushions 20 in the form of rotatable foam rubber rollers, respectively, are connected between and spaced along the side members 14a and 14b of the back frame 14. The lowest roller cushion 20 is mounted to rotate on the same axis as the axis on which the opposing bolts 15 extend.

The H-shaped seat frame 16 with front and rear members 16a and 16b has a transverse member 16c connected between the front and rear members, for example by welding. A padded seat cushion 30 is secured to the seat frame 16 and lies on the front, back and transverse members of the seat frame. The seat cushion has a front end 30a and a rear end 30b.

Also shown in Figure 11 is a low friction journal bushing 40, for example made of low friction nylon, having a bore 40a extending vertically, for example by extending through a bore in a horizontal member and By having the flange ring 40a and the large upper flange ring 40b, it is fixed to the horizontal member 12c. The upper flange ring 40b has a wide flat upper annular bearing surface. The journal strut 42 is connected to the transverse member 16c of the seat frame 16 and is accommodated to rotate in the low friction journal bushing bore 40a, for example by welding, so that the seat cushion 30 is supported by the base frame ( Can rotate about 12).

The support area of the seat frame transverse member 16c, which is just around the journal post 42, is a low friction journal bushing 40 to support the weight of the user 100 sitting on the seat cushion as shown in FIG. 6. Contact the upper surface of the upper flange (14b) of the to support the weight. As shown in FIG. 7, the position of the low friction journal bushing 40 and the journal strut 42 received therein is at a distance C from the rear end 30b of the seat cushion 30, which is the rear of the seat cushion. From about 30% to about 42% (preferably between about 33% and 39%) of the total distance B from the end 30b to the front end 30a of the seat cushion 30. Due to the important placement of the rotating journal for the seat frame 16 and its cushion 30, the back cushions 20 contact the back cushion of the user and he or she when the user 100 sits on the seat cushion 30. The tailbone of the user at the lower end of the vertebrae 102 of is substantially aligned with the low friction journal bushing 40 and the journal strut 42 received therein, as shown by arrow X in FIG. 6. In this way virtually all of the user's weight is concentrated on the top surface of the bushing flange 40b, eliminating the need for other weight bearing mechanisms required to allow free and easy rotation of the seat cushion 30 on the base frame 12. In the illustrated embodiment, for example, the dimension of distance C is about 4 inches for the total dimension B, about 11 inches, from the front to the rear of the seat cushion 30.

Alternative embodiments of the present invention in which the same weight bearing function is mounted to the horizontal member 16c of the seat frame 16 and the support 42 is mounted to the horizontal member 12c of the base frame 12. Can be achieved at

An arm 50 is also provided on each side of the base frame 12, each arm detachable to side tubes 12d and 12e protruding from the side members 12a and 12b of the base frame 12. It has a pair of extensions 50a and 50b which are possibly connected. As best shown in Figs. 5 and 8, the side tubes 12e are circular shaped metal tubes welded to the outer surfaces of the side members 12a and 12b, and the side tubes 12d are substantially forward. Lateral opposite sides of the member, a circular cross-sectional metal tube of the base frame 12, welded to and transverse to the front ends of the side members 12a and 12b.

Each arm 50 includes a U-shaped handle 50c as shown in FIG. 5 to increase the available space of the user sitting on the seat cushion 30 and to allow the user's hand to easily access the handle. With the handles 50c of the arms 50 on opposite side portions of the base frame extending outwardly from each other in a plane extending at an acute angle A of about 30 degrees to about 80 degrees with respect to the horizontal plane. A more preferred range of angle A is about 50 degrees to 70 degrees. Arm tubes are fitted into the base frame tubes by having tubes of round cross section making arm extensions 50a and 50b of smaller diameter than round cross section tubes making base frame extensions 12d and 12e. The field 50 is detachably connected to the base frame 12. By a pair of outwardly loaded springs 50d near the inner ends of the front extensions 50a that snap into the opposing holes 12h near the ends of the base frame extensions 12d. Arms 50 are fastened in position on opposite sides of base frame 12. There is no need for a separate fastening for the rear extensions 50b.

In this embodiment the arms 50 are fixed to the base frame 12 and the user can hold the arms at the handles 50c to help rotate the user's waist and thus target the lateral muscles of the user's abs The seat cushion 30 on the base frame is rotated while reciprocating the back frame 14 between the standing and lying positions. In another embodiment of the present invention shown in Figure 9, the arm extensions 50a and 50b are detachably connected to opposite tubular ends of the front and rear ends 16a, 16b of the seat frame 16 so that Arms 50 rotate with seat cushion 30 for various sets of kinematics.

In order to fasten the seat frame 16 and its cushion 30 to the center and non-rotating positions shown in Figs. 1 and 2, the rear seat frame member 16b protrudes beyond the seat cushion 30, Vertical fastening hole 12j, which is in the rear arm extension 50b but may alternatively be in the rear base frame extension 12 in the embodiment of FIG. 8 when the arms are connected to the seat frame in the embodiment of FIG. Has one tubular end 16d with a vertical fastening hole. The fastening pin 70 with the shaft 70a and the ball handle 70b has a shaft 70a inserted into the fastening holes aligned to fasten the seat frame in place. As best seen in Fig. 10, an annular groove 70c near the upper end of the shaft 70a is held by the plate metal material of the empty tubes that make up the seat and base frames in the fastening holes while the user is moving. Prevents accidental retraction of the fastening pins 70. With the aid of gravity and the additional weight of the ball handle 70a, the pin 70 is arbitrarily caused to fall back into its fastening position instead of being pushed out of the fastening holes during exercise time. By pulling the fastening pin out of the fastening holes as shown in Figs. 3 and 4, the seat cushion 30 can be rotated to the left and right as the user rotates his or her waist to strengthen the exercise pattern. Can be.

One pulley 60 is mounted to rotate on each side of the base frame 12 near the rear end of the base frame around the bolts 15. The tension spring 80 is provided with a spring strut 14c extending from the back frame side member 14a at one end to bias the back frame 14 toward the forward standing position shown in FIGS. 1 and 8. Needle ears 84 engaged, and needle ears 85 coupled to spring struts 12f extending from the base frame side member 12a at opposite ends thereof. Threaded handles 86 are screwed over the threaded ends of the spring struts 14c and 12f to secure the springs 80 in place. An elastic body, for example a foam rubber sleeve 82, covers each spring 80 and each spring covered with the elastic sleeve is coupled to a groove in one of the pulleys 60.

Another embodiment of the present invention is shown in Figure 12, in which a pair of tandem pulleys 60, 60 are mounted to rotate on the long bold 15 on each side of the base frame, Tension springs 80 are connected with respective resilient sleeves 82 covering each spring between the base frame and the back frame side members and deflect the back frame towards the forward standing position at twice the strength. To each pulley 60 for the purpose of assembly. This further increases the resistance of each back movement towards the lying position for more intensified movement. Vertical pulleys can be used with conventional abs workouts of US Pat. Nos. 7,381,171 and D581,471 or with the improvements of FIGS. 1-11. As also shown in FIG. 12, the pulleys 60, spring struts, and covered sleeves are wide enough to cover a single pulley 60 or double pulleys 60, 60. An elastic fabric band 90 having a slightly smaller circumference than the path around the springs 80 with 82 is also usable with the column pulleys and / or the refinements of FIGS. In use, the band 90 extends over the pulleys and engages with sleeve-covered springs and one or a pair of hook-and-loops screwed behind one or two springs 80. If two straps are used, above the joining area between the sleeves 82 and the grooves of the pulleys 60 by the covered straps 92, they are retained in the following locations, after which the straps are at their bases. They are held back in place by hook-and-loop action on the contact surfaces, returning to the band until they engage themselves. The use of these elastic bands 90 is for two purposes. First, they are safety measures to keep all parts within the elastic band so that they do not fly away from the device when any part of the springs or their accessories is broken. Second, the elastic bands reduce or dampen any noise generated by the springs and pulleys as the device reciprocates between standing and lying positions during exercise time.

Although specific embodiments of the invention have been shown and described in detail to illustrate the application of the principles of the invention, it will be understood that the invention may be embodied in other ways without departing from the principles.

Claims (20)

A base frame 12 lying on a horizontal surface above the floor and having a pair of side members 12a and 12b and a horizontal member 12c connected between the side members,
A pair of side members 14a pivotally mounted near respective rear ends of the respective side members 12a, 12b of the base frame to move between the forward standing position and the rear lying position. Back frame 14 having, 14b),
A plurality of back cushions 20 connected between the side members 14a and 14b of the back frame 14 and spaced apart along the side members 14a and 14b;
An H-shaped seat frame 16 having front and rear members 16a and 16b and a transverse member 16c connected between the front and rear members,
A seat cushion 30 fixed to the seat frame 16 and placed on the front, rear and horizontal members of the seat frame;
A low friction journal bushing 40 having a vertically extending bore and connected to the transverse members 12c, 16c of one of the base and seat frames 12, 16,
The seat cushion 30 is connected to the other transverse member 12c, 16c of the base and seat frames 12, 16 and received to rotate within the low friction journal bushing 40 such that the seat cushion 30 is supported by the base frame 12. A journal prop 42, rotatable relative to,
An arm 50 on each side of the base frame,
A pulley mounted to rotate on each side of the base frame near the rear end of the base frame;
A tension spring connected between said base frame and said back frame side members for biasing said back frame toward a forward standing position,
An elastic sleeve covering each spring,
The seat cushion has a front end and a rear end,
A support region of the horizontal member around the journal post and to which the journal post is connected is in contact with the low friction journal bushing 40 to support the weight of the user sitting on the seat cushion to support the weight. The position of the low friction journal bushing 40 and the journal strut 42 received therein is at about 30% to about 42% of the distance from the rear end of the seat cushion to the front end of the seat cushion. User's back against the field 20 and the user's tailbone is substantially with the low friction journal bushing 40 and the journal strut 42 received therein when the user is sitting on the seat cushion 30. Vertically aligned,
Each arm has a pair of extensions 50a, 50b connected to one of the base frame and the seat frame, each arm comprising a U-shaped handle 50c, which sits on the seat cushion At about 30 degrees with respect to the horizontal plane with the handles 50c of the arms 50 on the opposite side portions of the base frame extending outward from each other to increase the available space of and to facilitate the user access to the handles. Lies in a plane extending at an acute angle of about 80 degrees,
Each elastic sleeve engages with one of the pulleys. 2. The side members 12a, 12b of the base frame 12 each comprise tubular side extensions 12d, 12e, the extensions 50a, 50b of each arm 50. Is detachably attached to the tubular lateral extension on each individual side of the base frame (12) such that the arms are secured to the base frame when the seat frame rotates. 2. The ends of the respective front and rear members 16a, 16b of the seat frame 16 on the respective individual sides of the seat frame. The abdominal muscle exerciser which is attached to a field detachably, and which the said arm rotates with rotation of the said seat frame. A pair of parallel pulleys mounted on each side of the base frame for rotation, and connected together with respective elastic sleeves covering respective springs between the base frame and the back frame side members. And a tension spring coupled with the respective pulleys to bias the back frame towards the forward standing position. The abs exerciser according to claim 1, wherein the handle (50c) lies in a plane extending at an acute angle of about 50 degrees to about 70 degrees with respect to the horizontal plane. The position of the low friction journal bushing 40 and the journal strut 42 received therein is at about 33% of the distance from the rear end of the seat cushion to the front end of the seat cushion. In 39%, abs exercisers. The seat frame extension of claim 1, wherein the rear member of the seat frame is aligned with a seat frame extension 16d extending beyond the seat cushion 30 and when the seat cushion is rotated to a central position. And fastening holes in the base frame or in one arm extension and fastening pins inserted into the aligned fastening holes to secure the seat cushion in the central position. The seat frame extension of claim 1, wherein the rear member of the seat frame is aligned with a seat frame extension 16d extending beyond the seat cushion 30 and when the seat cushion is rotated to a central position. And fastening holes of the base frame or one arm extension, and fastening pins inserted into the aligned fastening holes to secure the seat cushion at the central position, the fastening pins being fastened to the fastening holes. An upper handle having at least one dimension larger and an axis smaller in diameter than the fastening holes and extending into aligned fastening holes, the axis including an annular groove near the top handle Exercise. 2. An elastic band according to claim 1, wherein said elastic band extends from one edge of said band to engage said band over said pulley and sleeve-covered spring on respective sides of said base and back frames. An abs exerciser having a strap covered with at least one hook-and-loop. With the base frame,
A back frame pivotally mounted near the rear end of the base frame for moving between standing and lying positions,
At least one bag cushion connected to the back frame for supporting the user's back;
A seat frame mounted to rotate on the base frame,
A seat cushion fixed to the seat frame on which the user sits,
A low friction journal bushing connected to the base frame;
A journal post mounted rotatably in the bushing and connected to the seat frame for rotation of the cushion and set frame on the base frame;
Arms connected to each side of said base frame,
A pair of pulleys mounted to rotate near the rear end of the base frame and on opposite sides of the base frame,
A spring having an elastic sleeve thereon, the spring engaging each pulley,
A low friction bushing and journal strut supporting the weight of a user sitting on the seat cushion is located at about 30% to about 42% of the distance from the rear end of the seat cushion to the front end of the seat cushion on the seat cushion. The tailbone of the user sitting on is substantially aligned with the bushing and the prop,
Each arm has a pair of extensions connected to the base frame, each arm having a U-shaped handle lying in a plane extending at an acute angle of about 30 degrees to about 80 degrees with respect to the horizontal plane on which the base is placed,
The springs are connected between the base and back frames to bias the back frame toward the standing position. The seat of claim 10, wherein the side members of the base frame include tubular side extensions, and extensions of each arm are detachably attached to the tubular side extensions on each individual side of the base frame. When the frame is rotated the arms are secured to the base frame and the handle is in a plane extending at an acute angle of about 50 degrees to about 70 degrees with respect to a horizontal plane, the lower friction journal bushing and the journal posts received therein. A position is from about 33% to about 39% of the distance from the rear end of the seat cushion to the front end of the seat cushion, wherein the rear member of the seat frame extends beyond the seat cushion; The seat frame extension and the base frame, aligned when the seat cushion rotates to the center position Fastening holes of an or of one arm extension, and fastening pins inserted into the aligned fastening holes to secure the seat cushion in the central position, the fastening pins being at least one of the fastening holes. And an upper handle having a larger dimension and an axis smaller in diameter than the fastening holes and extending into an aligned fastening hole, the axis including an annular groove near the top handle. A base frame lying on a horizontal plane above the floor and having a pair of side members,
A back frame having a pair of side members pivotally mounted near respective rear ends of the side members of the base frame to move between a forward standing position and a rear lying position;
A plurality of bag cushions connected between the side members of the back frame and spaced along the side members;
A seat cushion mounted to the base frame;
An arm detachably connected to opposite sides of said seat cushion and respective side members of said base frame,
A pair of parallel column pulleys mounted to rotate on each side member of the base frame near the rear end of the base frame;
A pair of tension springs connected between the base frame and the back frame side members on each side of the base and the back frames to bias the back frame towards a forward standing position;
An elastic sleeve covering each spring,
Each elastic sleeve engages one of the pulleys. 13. The side members 12a, 12b of the base frame 12 each comprise tubular side extensions 12d, 12e, the extensions 50a, 50b of each arm 50. Is detachably attached to the tubular lateral extension on each individual side of the base frame (12) such that the arms are secured to the base frame when the seat frame rotates. 13. The extensions 50a, 50b of each arm 50 are end portions of the individual front and rear members 16a, 16b of the seat frame 16 on each individual side of the seat frame. The abdominal muscle exerciser which is attached to a field detachably, and which the said arm rotates with rotation of the said seat frame. 13. The apparatus of claim 12, wherein the pair of column pulleys are mounted to rotate on each side of the base frame and each elastic sleeve covers each spring between the base frame and the back frame side members. And a tension spring coupled with the respective pulleys to bias the back frame towards the forward standing position. 13. The abs trainer according to claim 12, wherein the handle (50c) lies in a plane extending at an acute angle of about 50 degrees to about 70 degrees with respect to the horizontal plane. The abdominal muscle of claim 12, wherein the position of the low friction journal bushing and the journal strut accommodated therein are at about 33% to about 39% of the distance from the rear end of the seat cushion to the front end of the seat cushion. Exercise. 13. The seat frame extension and the base frame of claim 12, wherein the rear member of the seat frame is aligned with a seat frame extension extending beyond the seat cushion and aligned when the seat cushion rotates to a central position. Abs fastening holes of one arm extension and fastening pins inserted into the aligned fastening holes to secure the seat cushion in the central position. 13. The seat frame extension and the base frame of claim 12, wherein the rear member of the seat frame is aligned with a seat frame extension extending beyond the seat cushion and aligned when the seat cushion rotates to a central position. Fastening holes of one arm extension and fastening pins inserted into the aligned fastening holes to secure the seat cushion in the central position, the fastening pins having at least one dimension greater than the fastening holes. And a larger upper handle and an axis smaller in diameter than the fastening holes and extending into the aligned fastening hole, the axis including an annular groove near the upper handle. 13. An elastic band as set forth in claim 12, wherein said elastic band extends from one edge of said band to engage said band over said pulley and sleeve-covered spring on respective sides of said base and back frames. The abs exerciser, having a strap covered with at least one hook-and-loop.

Images