JP6655961B2 - Fitness equipment - Google Patents

Description

The present invention relates to a fitness apparatus that supports a fitness exercise in which a user sits up and down on the upper body.

2. Description of the Related Art Conventionally, for example, in a case where a user performs abdominal muscle exercise by raising and lowering his / her upper body while sitting on a floor, if the user performs extreme exercise, the abdominal muscle and the back muscle may be damaged by a load. For this reason, a seat-chair type fitness apparatus for supporting the undulating exercise has been provided.

Such a fitness device includes a seating means on which the user sits, and a posture between a standing posture and a falling posture depending on the back tilt angle of the back of the user, which is positioned on both sides of the seating system and is pivotally connected by a horizontal axis. A pair of oscillating arms, a resilient means for urging the oscillating arms toward a standing position, and a laterally extending face facing the user's back from a free end of the oscillating arms. And backing means.

Therefore, the user who is seated on the seat can move up and down the upper body while the back is pressed and supported by the back support. In other words, when the body moves up and down, the body is folded down while pressing down on the swing arm by using the weight against the resilient means, and the swing arm urged upward by the resilient means. The upper body can be erected while borrowing the pushing force of the backing means, thereby reducing the strain on the muscles and enabling the body to exercise naturally.

Utility Model Registration No. 3198063

(First issue)
As shown in Patent Literature 1, in a conventional fitness apparatus, a back support unit that presses and supports a user's back includes a pair of back pillow members facing a back from a pair of left and right swing arms in a straight line. It is provided above.

The back pillow member is formed of an elastic cylindrical back cushion so as to softly press the back of the user. However, since the pair of left and right back pillows intensively press the user's back in a single straight line, it is not always comfortable. May cause back pain.

Therefore, the present inventors can disperse the pressing force on the back up and down by providing the back pillow members in a plurality of rows up and down so as to simultaneously press and support a plurality of upper and lower portions of the back of the user. It has been found that the above problem can be solved.

However, in the case where the back pillow members in the upper and lower rows are fixed in a row along the swing arm, the back pillow members in the plurality of rows fit well to the user's back during the undulating movement. Therefore, there is a new problem that the intended purpose of dispersing the pressing force cannot be achieved.

Therefore, solving the problem in this respect is a first object of the present invention.

(Second task)
As shown in Patent Literature 1, a seat means in a conventional fitness device is arranged in a limited area between a pair of swing arms.

However, in order for the user to move up and down while the back is pressed and supported by the back support means as described above, the buttocks of the user are required to be closer to the front side of the seat means, that is, pivotally connected to the swing arm. It is necessary to sit near the base end which has been set, and if the undulating movement is repeated at the sitting position, the sitting position gradually shifts and the buttocks may fall off from the seating means.

In this regard, if the present inventors extend the seat means toward a region further forward than near the base end portion, which is a pivotal connection point of the swing arm, the seating region increases, and the above-described problem occurs. Can be solved.

However, if the seat means is extended long in the front direction, when storing the fitness apparatus when not in use, the extended portion of the seat means protrudes beyond the entire length of the swinging arm folded down along the seat means. , There is a new problem that it cannot be stored compactly.

In addition, when the seat means is extended, it becomes possible for the user to exercise while sitting on the buttocks at a position farther to the front than the base end, which is the pivot point of the swing arm. Since the pivot point (pivot axis) of the pivot arm and the fulcrum (hip joint) of the user's upper body are separated from each other, the back pillow members arranged in a plurality of rows as described above fit the back. The problem with respect to the first problem of not being performed becomes significant.

Therefore, solving the problem in this respect is a second object of the present invention.

The present invention provides a fitness apparatus that solves the above-mentioned problems, and is configured as means for the fitness apparatus. The apparatus includes seat means on which a user sits, and is pivotally connected to a first horizontal axis on both sides of the seat means. A pair of swing arms that are swingable between a standing posture and a lying posture in accordance with the back tilt angle of the user's back and a resilient means for urging the swing arm toward the standing posture, Back support means extending laterally from the free end of the swing arm to face the user's back, and the user sits on the seat means, and the back is pressed by the back support means. In the fitness apparatus for exercising the back and forth, the back support means is constituted by connecting upper and lower back rows of back pillow members arranged in a row so as to support the upper and lower portions of the user's back with an auxiliary arm, and the auxiliary arm Is a pair of rocking Are rotatably pivotally via a second horizontal axis on the inner side facing the beam, when the swing the swing arm in the collapsed direction, the axial direction of the swing arm in the axial direction of the axis of the auxiliary arm The upper back pillow member is positioned above the swing arm, and the lower back pillow member is positioned below the swing arm. is there.

In the present invention, the seat means includes an extension seat extending from a seat body disposed between the swing arms toward a front side of the user via hinge means, and the extension seat is By opening and closing the hinge means, it is possible to select between a deployed posture extended in a flush state from the seat main body and a folded posture superimposed in an inverted state toward the seat main body.

According to the fitness apparatus of the present invention, in the state where the user is seated on the seating means 2, the user repeatedly repeats the undulating movement while receiving the pressing support of the backing means 5 of the swing arm 3 urged by the elastic means 4 on the back. The back pillow members 5a and 5b in a plurality of rows always fit on the back at the same time and press and support the upper and lower portions of the back of the user, so that the feel of the back during exercise is extremely comfortable, and By dispersing the pressing force appropriately, there is no possibility that the user feels pain.

By the way, during the repetition of the undulating movement, the sitting position of the buttocks of the user may gradually shift toward the front side, but since the extension seat 2b in the deployed posture M1 is located on the front side of the seat body 2a, The buttocks do not fall off the seat means 2.

In particular , when the user's seating position shifts, the hip joint HJ is further separated from the first horizontal axis X1 of the swing arm 3 to the front side. Although the rearward inclination angle of the axis L1 of the moving arm 3 is significantly different, the axis L2 connecting the back pillow members 5a and 5b of the back support means 5 is independent of the axis L1 of the swing arm 3. 2 is rotatable via the horizontal axis X2 , and when the swing arm 3 swings in the falling direction, the auxiliary arm 12 moves the axial axis L2 of the auxiliary arm 12 in the axial direction of the swing arm 3. The upper back pillow member 5a is rotated to a position intersecting the axis L1, the upper back pillow member 5a is positioned above the swing arm 3, and the lower back pillow member 5b is positioned below the swing arm 3. and for which, always good, back pillow member 5a of the plurality of rows, the back of the 5b user It is possible to fit in.

Then, when storing the fitness apparatus 1 when not in use, the swing arm 3 may be held in the storage posture PX along the seat body 2a, and in this case also, the back support means 5 is connected to the second horizontal axis X2. , The axis L2 of the auxiliary arm 12 is aligned with the axis L1 of the swing arm 3, so that the back pillow members 5a and 5b in a plurality of rows are suitably stored along the surface of the seat body 2a. Further, the extension seat 2b can be folded from the deployed posture M1 to the folded posture M2 on the seat body 2a via the hinge means 6, so that the extended seat 2b is stored in a compact state without being bulky as a whole. It becomes possible.

1 is a perspective view showing a fitness device according to one embodiment of the present invention. It is a side view which shows the effect | action of a swing arm and a back support means. It is a side view which shows the relationship between a swing arm and a resilient means. It is a perspective view which shows the state at the time of storage of a fitness apparatus. FIG. 9 is a side view showing an operation in a use state, and showing a relationship between a user's back and back support means when the swing arm is in a rearwardly inclined standing posture. FIG. 9 is a side view illustrating an operation in a use state and illustrating a relationship between a user's back and a back support unit when the swing arm is swung toward the lying posture.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 to 4, the fitness apparatus 1 includes a seat means 2 on which a user sits, a pair of left and right swing arms 3, 3 arranged on both sides of the seat means 2, and the swing arm 3. A swing means 3 for urging the swing arm 3 toward the standing posture; and a back support means 5 extending laterally from the free end of the swing arm 3, 3 toward the user's back. I have. When the user is seated on the seat means 2, the front side or the front side is indicated by an arrow F, and the back side or the rear side is indicated by an arrow B.

The fitness device 1 is capable of performing various physical exercises, not limited to the undulating exercise of the upper body (upper body) of the user, but at least undulating exercise is one of the objectives. The upper body can be moved up and down while being seated on the seat means 2 and the back in the backwardly inclined posture is pressed and supported by the back receiving means 5. At this time, by using the weight, the upper arms fall down while pushing the swing arms 3 and 3 against the resilient means 4, and the swing arms 3 urged upward by the resilient means 4. According to 3, the upper body can be erected while using the pushing force of the back support means 5, so that the burden on the muscles is small, and the body can exercise naturally.

(Seat means)
The seat means 2 includes a seat body 2a disposed between the swing arms 3 and 3, and an extension seat 2b extended via a hinge means 6 toward the front side of the user.

The seat body 2a is fixed to the base frame 7 in a state where the seat body 2a is surrounded by a base frame 7 having a substantially U-shape in plan view. The base frame 7 includes a pair of left and right side frames 7a, 7a along both side edges of the seat body 2a and a rear frame 7b along the rear side edge of the seat body 2a, and the base frame 7 is installed on the floor. In this state, the seat body 2a is supported.

The seat body 2a and the extension seat 2b are each constituted by a cushion seat body having a substantially rectangular plate shape. The seat body 2a and the extension seat 2b are connected and covered with a covering sheet in a state where the seat body 2a and the extension seat 2b are connected. The hinge means 6 is formed by the covering sheet itself that interconnects the upper surfaces of the main body 2a and the extension seat 2b. The hinge means 6 may be formed separately from the cover sheet.

As a result, the extension seat 2b is opened and closed by opening and closing the hinge means 6 to extend the seat body 2a as shown in FIG. The folding posture M <b> 2, which is superimposed in an inverted state toward the proper seat body 2 a, is configured to be selectable.

Incidentally, the folding posture M2 is intended to make the fitness apparatus 1 compact when not in use and stored, and in this case, as shown in FIG. The storage posture PX along both side edges is set. Therefore, the extension seat 2b has a length W1 in the space between the hinge means 6 and the back support means 5 and a width W2 in the space between the swing arms 3 on the upper surface of the seat body 2a. It is preferable to form it in a size having

(Swinging arm)
The pair of left and right swing arms 3, 3 are pivotally pivotable by the first horizontal axis X1 with respect to the front ends of the side frames 7a, 7a via brackets 3a, 3a fixed to the respective base ends. Is tied. Although not shown, the left and right brackets 3a, 3a are pivotally supported by horizontal axis pins, and the left and right horizontal axis pins are coaxially arranged, thereby forming a first horizontal axis X1.

As described above, the swing arms 3, 3 are urged toward the upright posture by the resilient means 4, and normally tilt backward from the bracket 3a at the base end toward the free end 3b at the upper end. Hold. For this reason, in the case of the embodiment shown in FIGS. 2 and 3, the resilient means 4 is constituted by a tension coil spring 4a inserted into the inside of the swing arm 3, and one end of the spring 4a is connected to the side portion. It is connected to the front end of the frame 7a (in the case of the illustrated embodiment, a support member 8 fixed to the side frame 7a as shown in FIG. 4) so as to accumulate tension when the swing arm 3 is lowered backward. And the other end is connected to tension adjusting means 4b provided near the free end 3b of the swing arm 3.

The tension adjusting means 4b is provided with a plurality of adjusting holes 9 and rest holes 10 provided at predetermined intervals in the longitudinal direction of the swing arm 3, and a reciprocating mechanism selectively engaged and disengageable with these holes. A locking means 11 comprising a flexible pin or the like is provided.

Therefore, as shown in FIG. 3, when the locking means 11 is locked in the uppermost adjustment hole 9, the length of the tension coil spring 4a keeps the swing arm 3 in the backward tilting posture P1 by a predetermined angle. Is set to When the swing arm 3 swings in the falling direction from this state, tension is accumulated in the extension coil spring 4a, and the swing arm 3 can swing in the falling direction against the tension.

When the locking means 11 is locked in another adjusting hole 9, the length of the tension coil spring 4a is maintained in the backward tilt position P2 in which the swing arm 3 has a smaller tilt angle than the backward tilt position P1. It is set as follows. When the swing arm 3 swings in the falling direction from this state, tension is accumulated in the tension coil spring 4a, and the swing arm 3 can swing in the falling direction against the tension.

Accordingly, by selecting the adjustment hole 9 and locking the locking means 11 in this manner, the swing arm 3 holds a plurality of backwardly inclined postures P1 and P2 having different angles, so that the user can move up and down. Is performed, the swing stroke of the swing arm 3 accompanied by the urging force of the resilient means 4 can be selected, and the angle and stroke according to the physical strength of the user can be selected.

When the locking means 11 is locked in the lowermost rest hole 10, the tension coil spring 4a does not generate tension even if the rocking arm 3 is lowered, so that the rocking arm 3 is attached to the seat body 2a. It can be held as the storage posture PX along.

In the illustrated embodiment, the resilient means 4 is constituted by a tension coil spring 4a provided with the tension adjusting means 4b. However, the present invention is not limited to this. You may comprise.

(Backing means)
The back support means 5 includes left and right back support means 5L, 5R facing the user's back sideways from the free ends 3a, 3a of the pair of swing arms 3, 3 (when left and right are not distinguished). The left and right back support means 5L, 5R are arranged in parallel as a plurality of upper and lower rows (two rows in the example in the figure) supporting upper and lower portions of the user's back. Back pillow members 5a and 5b. Each of the back pillow members 5a and 5b is preferably configured to softly press the back of the user by extrapolating an elastic cylindrical cushion such as a sponge to the core material.

A plurality of rows of back pillow members 5a, 5b constituting each back receiving means 5 are connected to each other by an auxiliary arm 12, and the auxiliary arm 12 is arranged inside the pair of swing arms 3, 3 facing each other. The swing arm 3 is rotatably connected to the free end 3b of the swing arm 3 via the second horizontal axis X2. In the case of the illustrated embodiment, a horizontal shaft pin protruding from the auxiliary arms 12, 12 of the left and right back support means 5L, 5R is mounted on a bearing member 13 fixed to the free ends 3b, 3b of the pair of swing arms 3, 3. The upper and lower back pillow members 5a and 5b are arranged at a position equidistant from the axis X2 with the second axis X2 interposed therebetween by being rotatably inserted. I have.

Therefore, as shown in FIG. 2, the back pillow members 5a and 5b constituting the back receiving means 5 are rotatable about the second horizontal axis X2 together with the auxiliary arm 12 with respect to the swing arm 3. It has been. As a result, the axis L1 along the axial direction of the swing arm 3 and the axis L2 along the axial direction of the auxiliary arm 12 are configured so that the angle θ formed by both axes L1 and L2 can be changed. The change in θ is configured so that when the swing arm 3 swings in the falling direction as shown by the arrow R, it automatically functions along the user's back, and at this time, as shown by a chain line, The auxiliary arm 12 is rotated so that its axis L2 intersects with the axis L1 of the swing arm 3, the upper back pillow member 5a is positioned above the swing arm 3, and the lower back pillow member 5b is The upper and lower back pillow members 5a and 5b are fitted to the user's back by being positioned below the swing arm 3 .

In the illustrated embodiment, the back support means 5 is constituted by left and right back support means 5L and 5R corresponding to the left and right swing arms 3 and 3, respectively. Although an integrated back support means 5 having a plurality of rows of back pillow members 5a, 5b interconnecting the left and right swing arms 3, 3 is provided, the left and right swing arms 3, 3 may be configured to swing synchronously and integrally.

(Action)
FIG. 5 and FIG. 6 show an operation when the user performs the undulating exercise of the upper body (upper body) by using the fitness apparatus 1.

Prior to the start of the exercise, the swing arm 3 is set via the tension adjusting means 4b, as described above, so as to maintain the backward tilt posture (P1 or P2 shown in FIG. 3 or the like) of the predetermined angle R1.

When the user U sits on the seating means 2 with the extension seat 2b in the deployed posture M1, the buttocks of the user are seated at a position near the first horizontal axis X1 of the swing arm 3, but the user's hip joint HJ Are located slightly forward of the first horizontal axis X1.

Therefore, as shown in FIG. 5, when the user U leans the back on the back support means 5, the back support means 5 rotates via the second horizontal axis X2, and the back pillow members 5a, 5b in a plurality of rows are moved. At the same time, it is along the upper and lower parts of the back. In the illustrated case, the axis L1 of the swing arm 3 and the axis L2 of the auxiliary arm 12 intersect at an angle θ1, and the back pillow members 5a and 5b in a plurality of rows are suitably fitted to the back.

Next, as shown in FIG. 6, when the user U falls down on the upper body, the swing arm 3 is opposed to the resilient means 4 in a state where the back is pressed and supported by the back pillow members 5 a and 5 b. Is turned in the falling direction. As shown in the drawing, when the swing arm 3 is swung to a position indicated by an angle R2 (R2 <R1), the back receiving means 5 rotates along the back of the user U via the second horizontal axis X2. Thereby, the intersection angle between the axis L1 of the swing arm 3 and the axis L2 of the auxiliary arm 12 is changed so as to be an angle θ2 (θ2 <θ1), whereby the plurality of rows of the back pillow members 5a and 5b Maintain the fit up and down. The swing arm 3 can be further swung in the falling direction as shown by a chain line in FIG. 2, and at this time, the auxiliary arm 12 intersects its axis L2 with the axis L1 of the swing arm 3. Is rotated as described above.

For this reason, while the user is performing the undulating exercise, the back pillow members 5a and 5b of the plurality of rows always press and support the upper and lower portions of the user's back in a state of being fitted to the back at the same time, so that the feeling during exercise is reduced It is extremely comfortable and, in particular, by dispersing the pressing force on the back appropriately, there is no possibility that the user will feel pain.

When the user repeatedly performs the undulating movement, the sitting position of the buttocks may gradually shift toward the front side, but since the extension seat 2b in the deployed posture M1 is located on the front side of the seat body 2a, the buttocks are located. Does not fall off from the seat means 2.

At this time, if the user's seating position shifts and moves, the hip joint HJ is further separated from the first horizontal axis X1 of the swing arm 3 to the front side, so that the back tilt angle of the back of the user performing the undulating movement is swung. Although the rearward inclination angle of the axis L1 of the swing arm 3 is significantly different, the axis L2 connecting the back pillow members 5a and 5b of the back support means 5 is independent of the axis L1 of the swing arm 3, Since it is rotatable via the second horizontal axis X2, the back pillow members 5a and 5b in a plurality of rows can always be fitted to the user's back in a good manner.

Then, when storing the fitness apparatus 1 when not in use, as shown in FIG. 4, the swinging arm 3 may be held in the storage posture PX along the seat body 2a. Can rotate the axis L2 of the auxiliary arm 12 along the axis L1 of the swing arm 3 by rotating through the second horizontal axis X2, so that a plurality of rows of the back pillow members 5a and 5b are attached to the seat body 2a. Can be suitably stored along. Further, since the extension seat 2b can be placed in the folding posture M2 in which the extension seat 2b is superimposed on the seat main body 2a by the hinge means 6, it is possible to store the whole in a compact state without being bulky.

DESCRIPTION OF SYMBOLS 1 Fitness apparatus 2 Seat means 2a Seat body 2b Extension seat 3 Swing arm 3a Bracket 3b Free end 4 Resilient means 4a Tension coil spring 4b Tension adjustment means 5 (5L, 5R) Back support means 5a, 5b Back pillow member 6 Hinge means 7 Base frame 7a Side frame 7b Rear frame 8 Support member 9 Adjustment hole 10 Rest hole 11 Locking means 12 Auxiliary arm 13 Bearing member X1 First horizontal axis X2 Second horizontal axis

Claims (2)

Between a seating means (2) on which a user sits, and a standing posture and a lying posture depending on the back tilt angle of the user's back, which are pivotally connected by a first horizontal axis (X1) located on both sides of the seating means; A pair of swing arms (3, 3) that can swing freely, a resilient means (4) for urging the swing arm toward an upright posture, and a user's back from a free end of the swing arm. And a backrest means (5) extending laterally facing the user, and a user who sits on the seat means exercises his / her upper body up and down while the back is pressed and supported by the back support means (5). In the device,
The Se受means (5) is made by connecting the back pillow members arrayed been vertically plurality of rows so as to support the upper and lower points of the user's back (5a, 5b) mutually auxiliary arm (12),
The auxiliary arm (12) is rotatably connected to the inside of the pair of swing arms (3) and (3) via a second horizontal axis (X2) so as to pivot the swing arm in the falling direction. When pivoted to the position, the auxiliary arm (12) is pivoted to a position where the axial axis (L2) of the auxiliary arm (12) crosses the axial axis (L1) of the pivot arm (3), and the upper back pillow member ( A fitness apparatus, wherein 5a) is positioned above the swing arm, and the lower back pillow member (5b) is positioned below the swing arm . The seat means (2) includes an extension seat (2b) extending from a seat body (2a) disposed between the swing arms toward a front side of a user via hinge means (6). Equipped,
The extension seat (2b) is opened and closed by opening and closing the hinge means (6), so that the extended posture (M1) extended in a flush state from the seat body (2a), and the extended posture toward the seat body (2a). The fitness apparatus according to claim 1, characterized in that the folding posture (M2) superimposed in (1) is selectable.

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