JP7429021B2 - Handrail support structure, parallel bars, and parallel bar exercise device - Google Patents

Description

The present invention relates to a support structure for a handrail bar, a parallel bar, and a parallel bar type exercise device.

As shown in FIG. 10, in a parallel bar type walking training machine in which a pair of handrails are supported substantially horizontally by supports, bent connecting rods 83 are arranged at positions where handrails 81a and 81b are supported by supports 82. , there is one in which the connecting portions between the connecting rod 83 and the handrails 81a, 81b and the support column 82 are configured to be rotatable (see Patent Document 1).

The connecting rod 83 consists of a connecting rod main body that is connected to the column 82 and a metal tip of the connecting rod main body, and the connecting shaft protruding from the handrails 81a and 81b is inserted into the shaft hole provided in the metal tip. Then, it is fixed with a bolt or the like to prevent it from coming off.

According to this configuration, by lifting a portion of the connecting rod 83 upward and fixing it to the support column 82, the handrails 81a, 81b can be made to be inclined with respect to the walking floor surface.

Japanese Patent Application Publication No. 2002-345995

However, since the distance between the two connecting axes protruding from one handrail 81a remains unchanged, when the handrail 81a is tilted with respect to the walking floor when viewed from above, The extending direction of the handrail 81a will change compared to the state where the handrail 81a is parallel to the walking floor surface.

The same thing happens with the other handrail 81b, so if both handrails 81a and 81b are tilted at the same angle with respect to the walking floor surface, one handrail 81a and the other handrail 81b will move upward. When viewed from above in a plan view, it becomes a non-parallel state in the shape of a katakana character, and as a result, there is a problem in that it is difficult to perform walking movements.

The present invention has been made in view of the above, and even if the angle of the pair of handrails is inclined with respect to the walking floor surface, the pair of handrails can be easily parallel to each other when viewed from above. It is an object of the present invention to provide a support structure for a handrail bar that allows walking movement, a parallel bar equipped with the same, and a parallel bar type exercise device equipped with this parallel bar.

(1) In order to solve the above problems, a handrail rod support structure according to the first aspect of the present invention includes a pair of handrail rods arranged in parallel with an interval and a pair of the handrail rods respectively attached. a support member that is attached to the support pillar such that its height can be changed and supports the handrail bar; By making the bars movable in the longitudinal direction, the pair of handrail bars maintain a parallel state when the whole of the pair of handrail bars is tilted at the same angle in the vertical direction with respect to the horizontal state, In addition, the support member is configured such that the distance between the pair of handrail bars is maintained.

According to the first aspect of the present invention, the inclination angle of the handrail bar can be arbitrarily changed according to the exerciser. It is easy to use because the extending direction of the handrail rods does not change in a plan view when the pair of handrail rods are viewed from above, and the parallel state of the pair of handrail rods can be maintained. By changing the angle of inclination of the handrail, it is possible not only to walk on a horizontal plane but also to use a combination of slopes and stairs, increasing the variety of walking movements. Additionally, the height of the handrail can be adjusted to suit the body shape of the exerciser.

(2) In the first preferred embodiment of the present invention, the support member includes a first support member and a second support member, and the first support member has a first support member attached to the support column so that the height can be changed. a mounting member; and a first joint that connects the first mounting member and the handrail bar; the handrail bar includes a connection portion to which the first joint is connected; and the first joint is connected to the connection portion. movably connected to.

According to the embodiment described above, since the first joint is movably connected to the connecting portion, it does not interfere with changing the inclination angle or height of the handrail bar.

(3) In another preferred embodiment of the first aspect of the present invention, the first joint includes a first columnar portion rotatably connected to the first mounting member about a central axis, and a longitudinal direction of the handrail rod. and a first connecting portion rotatably connected to the connecting portion in a vertical plane including the first connecting portion.

According to the embodiment described above, since the first joint freely rotates, it does not become an obstacle when changing the inclination angle or height of the handrail bar.

(4) In another preferred embodiment of the first aspect of the present invention, one of the connecting portion and the first joint has a groove along the longitudinal direction of the handrail rod, and the connecting portion and the first joint have a groove along the longitudinal direction of the handrail rod. The other end is movably fitted into the groove.

According to the embodiment described above, since the position of the connection part with respect to the first joint changes along the groove, it does not become an obstacle when changing the inclination angle or height of the handrail bar.

(5) In another preferred embodiment of the first aspect of the present invention, the first joint is movable with respect to the first mounting member so that the distance between the pair of handrail bars can be changed.

According to the above embodiment, the interval between the handrail bars can be adjusted according to the body shape of the exerciser.

(6) In another preferred embodiment of the first aspect of the present invention, the first joint is fixed by sandwiching both sides of the first columnar portion between clamping members and pressing the clamping member with a pressing member.

According to the embodiment described above, by sandwiching both sides of the first columnar part between the clamping members and pressing and fixing the clamping members with the pressing member, it is possible to prevent the handrail bar from shaking. Furthermore, it is possible to prevent the position and inclination angle of the handrail from being changed inadvertently.

(7) In another preferred embodiment of the first aspect of the present invention, the first mounting member is fixed to the support column by pressing the holding member in the direction of the support support with the presser member.

According to the embodiment described above, since the first mounting member can be fixed to the column using the presser member, a separate fixing member is not required, and the structure can be simplified. Further, by using one presser member, it is possible to simultaneously fix the first columnar member to the first mounting member and fix the first mounting member to the column. Thereby, the angle between the first joint and the connecting portion can also be fixed.

(8) In another preferred embodiment of the first aspect of the present invention, when the handrail bar is tilted in the vertical direction, the angle between the handrail bar and the first joint in plan view is regulated so as not to change. Establish a regulatory mechanism.

According to the embodiment described above, when changing the inclination angle and height of the handrail bar by adjusting the height of the first mounting member, it is possible to prevent the handrail bar from moving lower due to its own weight, and the first mounting member The mounting member can be prevented from rotating relative to the support column, and the inclination angle and height of the handrail bar can be easily changed.

(9) In another preferred embodiment of the first aspect of the present invention, the second support member includes a second mounting member that is attached to the support column so that the height can be changed, and the second mounting member and the handrail. a second joint connected to the handrail rod, the second joint being rotatably connected to the second mounting member around a central axis; and a second connection connected to the handrail rod. It is equipped with a section.

According to the embodiment described above, since the second joint freely rotates, it does not interfere with changing the inclination angle or height of the handrail bar.

(10) In another preferred embodiment of the first aspect of the present invention, the second joint is movable with respect to the second mounting member so that the distance between the pair of handrail bars can be changed.

According to the above embodiment, the interval between the handrail bars can be adjusted according to the body shape of the exerciser.

(11) In another preferred embodiment of the first aspect of the present invention, the second joint is fixed by sandwiching both sides of the second columnar portion between clamping members and pressing the clamping member with a pressing member.

According to the embodiment described above, by sandwiching both sides of the second columnar part between the clamping members and pressing and fixing the clamping members with the pressing member, it is possible to prevent the handrail bar from shaking. Furthermore, it is possible to prevent the position and inclination angle of the handrail from being changed inadvertently.

(12) In another preferred embodiment of the first aspect of the present invention, the second mounting member is fixed to the support column by pressing the holding member in the direction of the support support with the presser member.

According to the embodiment described above, since the second mounting member can be fixed to the column using the presser member, a separate fixing member is not required, and the structure can be simplified. Further, using one presser member, it is possible to simultaneously fix the second columnar member to the second mounting member and fix the second mounting member to the column.

(13) In another preferred embodiment of the first aspect of the present invention, when the handrail bar is tilted in the vertical direction, the angle between the handrail bar and the second joint in plan view is regulated so as not to change. Establish a regulatory mechanism.

According to the embodiment described above, when changing the inclination angle of the handrail bar by adjusting the height of the first and second mounting members, it is possible to prevent the handrail bar from moving lower due to its own weight. Easy to change the inclination angle of the slide rod.

(14) The second handrail rod support structure of the present invention includes a pair of handrail rods arranged parallel to each other with an interval, and is expandable and retractable to which one end side and the other end side of the pair of said handrail rods are respectively attached. and a support post, and the handrail bar is movable in the longitudinal direction of the handrail rod while the handrail bar is supported by the support post, so that the support post can be expanded and contracted, or the support support can be expanded and contracted and rotated. When the entire pair of handrail bars are tilted at the same angle in the vertical direction with respect to the horizontal state, the pair of handrail bars remain parallel, and the distance between the pair of handrail bars is is characterized in that it is configured so that it is maintained.

According to the second aspect of the invention, the inclination angle of the handrail can be changed arbitrarily according to the exerciser. In a plan view when the pair of handrail rods are viewed from above, the extending direction of the handrail rods does not change and the parallel state of the pair of handrail rods can be maintained, making it easy to use. By changing the inclination angle of the handrail, it is possible not only to walk on a horizontal plane, but also to use a combination of slopes and stairs, increasing the variety of walking movements. Additionally, the height and angle of inclination of the handrail can be changed at will by simply expanding and contracting the support. The height and angle of the handrail can be adjusted more precisely according to the body shape of the exerciser, and the adjustment operation is also simplified.

(15) A third parallel bar of the present invention is characterized by comprising the handrail bar support structure according to any one of (1) to (14) above.

According to the third aspect of the present invention, it is possible to provide a parallel bar whose inclination angle can be changed.

(16) A fourth parallel bar type exercise device of the present invention is characterized by comprising the parallel bars described in (15) above, and stairs and/or slopes installed between the supports.

According to the fourth aspect of the present invention, by installing slopes/stairs between the supports, it is possible to perform a walking exercise using a combination of parallel bars and slopes/stairs.

According to the present invention, the inclination angle of the handrail can be arbitrarily changed according to the exerciser. In a plan view when the pair of handrail rods are viewed from above, the extending direction of the handrail rods does not change and the parallel state of the pair of handrail rods can be maintained, making it easy to use. By changing the angle of inclination of the handrail, it is possible not only to walk on a horizontal plane but also to use a combination of slopes and stairs, increasing the variety of walking movements. The height of the handrail can be adjusted to suit the body shape of the exerciser.

FIG. 1 is a perspective view of a parallel bar according to a first embodiment of the present invention. The front view of the same parallel bar. (a) A plan view showing a modified example of the connecting portion, and (b) a plan view showing a modified example of the connecting portion. FIG. 2 is an enlarged perspective view of section A in FIG. 1; FIG. 2 is an enlarged perspective view of section B in FIG. 1; FIG. 1 is a perspective view of a parallel bar type exercise device using parallel bars according to a first embodiment of the present invention. FIG. 5 is an enlarged perspective view of section C in FIG. 4; FIG. 5 is an enlarged side sectional view of section C in FIG. 4; FIG. 5 is an enlarged perspective view of section D in FIG. 4. FIG. 5 is an enlarged side view of section D in FIG. 4. FIG. 6 is a perspective view of a parallel bar according to a second embodiment of the present invention. FIG. 7 is an enlarged perspective view of section E in FIG. 6; FIG. 7 is an enlarged perspective view of section F in FIG. 6; FIG. 7 is a perspective view of parallel bars according to a third embodiment of the present invention. FIG. 9 is an enlarged perspective view of section G in FIG. 8; FIG. 9 is an enlarged perspective view of section H in FIG. 8; FIG. 1 is a perspective view of a conventional parallel bar walking training machine.

DESCRIPTION OF EMBODIMENTS Hereinafter, a handrail support structure, a parallel bar including the same, and a parallel bar exercise device including the parallel bar according to an embodiment of the present invention will be described with reference to the accompanying drawings.

(First embodiment)
Referring to FIGS. 1 and 2, the parallel bar 1 of the first embodiment includes first and second handrail bars 2 and 3. The first and second handrail bars 2 and 3 are arranged parallel to each other with a distance that allows the exerciser to walk. The parallel bar 1 also comprises a plurality, in the embodiment two, first struts 4 and a plurality, in the embodiment two, second struts 5. The first struts 4 are provided at intervals in the longitudinal direction of the first handrail bar 2 and support the first handrail bar 2 . The second support columns 5 are provided at intervals in the longitudinal direction of the second handrail bar 3 and support the second handrail bar 3.

These two first columns 4 and two second columns 5 constitute a frame of the parallel bars 1.

The parallel bar 1 further includes two first connecting parts 6, one second connecting part 7, and one third connecting part 8 as a frame. The first connecting portion 6 connects the first support 4 and the second support 5 above the exerciser.

The second connecting portion 7 connects the first columns 4 to each other above the exerciser, and the third connecting portion 8 connects the second columns 5 to each other above the exerciser. The first support columns 4 and the second support columns 5 may be connected to each other by lowering the connecting parts 7 and 8 to a position on the side of the exerciser so as not to interfere with the exerciser's walking movement.

Note that, as shown in FIG. 2A (a), the first connecting portions 6 may be connected to each other by separate connecting portions C1, C1. There may be one connecting portion C1. Further, as shown in FIG. 2A (b), the second connecting portion 7 and the third connecting portion 8 may be connected by another connecting portion C2. A plurality of C2 may be provided. Furthermore, although not shown, the first connecting portion 6 may connect the first support 4 and the second support 5 located diagonally.

In such a parallel bar 1, the frame is configured in a substantially gate shape. In FIG. 1, reference numeral 9 indicates an installation leg, and reference numeral 10 indicates a handrail for standing up, which is provided between the installation leg 9 and the first support 4. An exerciser or the like in a wheelchair (not shown) grasps the handrail 10 for standing up and stands up. Perform sitting exercises.

Next, the first and second support members 11A and 11B of the first handrail bar 2 will be explained with reference to FIGS. 3A and 3B. Each of the support members of the second handrail bar 3 is also similar to each of the support members 11A and 11B of the first handrail bar 2, so a description thereof will be omitted. As described below, the first and second support members 11A and 11B are capable of supporting each handrail bar when the same side of each handrail bar 2 and 3 is inclined at the same angle in the vertical direction with respect to the horizontal state. 2 and 3 are constructed so as to maintain a parallel state.

As shown in FIG. 3A, the first support member 11A includes a first attachment member 12 and a first joint 13.

The first attachment member 12 is attached to the first support column 4 so that its height can be adjusted by a height adjustment member 14 . The height adjustment member 14 is engaged with a plurality of engagement recesses 4a in FIG. 3A provided in the column height direction of the first column 4, and is attached to the first column 4 by this engagement. When changing the mounting height of the first mounting member 12 to the first support 4, remove the height adjustment member 14 from the locking recess 4a, and move the first mounting member 12 up and down with respect to the first support 4. After changing the height, the first mounting member 12 is attached to the first support column 4 by locking the height adjustment member 14 in the locking recess 4a located at that height position.

The first joint 13 connects the first mounting member 12 and the first handrail rod 2. The first handrail bar 2 includes a connecting portion 15 on one longitudinal end thereof to which the first joint 13 is connected. The first joint 13 has an L-shape and includes a first columnar portion 16 extending in the horizontal direction and a first connecting portion 17 perpendicular to the direction in which the first columnar portion 16 extends.

The first columnar part 16 has one end inserted into a horizontal shaft hole of the first mounting member 12, and is rotatably attached around a horizontal central axis.

The first connecting part 17 is connected to the other end side of the first columnar part 16, and has a plate-shaped protrusion 17a parallel to the longitudinal direction of the first handrail bar 2 on its upper surface, and this plate-shaped protrusion 17a is inserted into a gap between a pair of connecting pieces 15a formed at the lower end of the connecting part 15 in a direction orthogonal to the longitudinal direction of the handrail bar 2, and a rotation axis is attached to the plate-shaped protrusion 17a and the connecting piece 15a. 18 is inserted in the horizontal direction (direction perpendicular to the first handrail bar 2). Further, the lower surface of the connecting piece 15a has a semicircular shape when viewed from the side (see FIG. 5A2 described later). Thereby, the first joint 13 is connected to the connecting portion 15 so as to be rotatable within a vertical plane including the longitudinal direction of the first handrail bar 2 . The plate-like protrusion 17a and the connecting piece 15a constitute a regulating mechanism that regulates the angle formed between the first handrail bar 2 and the first joint 13 (first columnar part 16) from changing when viewed from above. do.

A presser member 19 is inserted into the first attachment member 12 . The first columnar part 16 is rotatable around the central axis when the pressure by the presser member 19 is released, and is fixed to the first column 4 by being pressed in the direction of the first column 4 by the presser member 19. .

This eliminates the need for a separate fixing member for fixing the first mounting member 12 to the first support column 4, thereby simplifying the structure. Further, by using one pressing member 19, it is possible to simultaneously fix the first columnar portion 16 to the first mounting member 12 and fix the first mounting member 12 to the first support column 4. Thereby, the angle between the first connecting portion 17 and the connecting portion 15 can also be fixed. The first joint 13 is movable relative to the first mounting member 12 so that the opposing distance between the pair of handrail bars 2 and 3 can be changed by loosening the pressure applied by the presser member 19.

As shown in FIG. 3B, the second support member 11B includes a second attachment member 20 and a second joint 21. Like the first mounting member 12 of the first support member 11A, the second mounting member 20 is mounted to the first column 4 so that its height can be adjusted using a height adjustment member 22.

The second joint 21 connects the second mounting member 20 and the first handrail rod 2. The first handrail bar 2 includes a connecting portion 23 on the other end in the longitudinal direction to which the second joint 21 is connected. The second joint 21 has an L-shape and includes a second columnar portion 24 extending in the horizontal direction and a second connecting portion 25 perpendicular to the direction in which the second columnar portion 24 extends.

The second columnar part 24 has one end inserted into a horizontal shaft hole of the second mounting member 20, and is rotatably attached around a horizontal central axis.

The second connecting portion 25 is connected to the other end side of the second columnar portion 24, has a cylindrical shape extending vertically upward in the direction in which the second columnar portion 24 extends, and has a circular opening at the upper end. The lower end of the connecting portion 23 of the first handrail bar 2 is inserted into the. The second connecting portion 25 has a notch 25a at the upper circular opening edge. A position regulating pin 23a formed in the connecting portion 23 is fitted into this notch 25a. The notch 25a and the position regulating pin 23a constitute a regulating mechanism that regulates the angle formed between the first handrail bar 2 and the second joint 21 from changing when viewed from above.

A presser member 26 having the same function as the presser member 19 on the first attaching member 12 side is inserted into the second attaching member 20 . The second columnar part 24 is rotatable around the central axis when the pressure by the presser member 26 is released, and is fixed to the first column 4 by being pressed in the direction of the first column 4 by the presser member 26. . The second joint 21 is movable relative to the second mounting member 20 so that the opposing distance between the pair of handrail bars 2 and 3 can be changed by loosening the pressure applied by the presser member 26.

The parallel bar type exercise device 1A shown in FIG. 4 has stairs 30 for exercisers installed on the floor within a frame including two first columns 4 and two second columns 5 of the parallel bars 1 shown in FIG. It is. The staircase 30 is installed so as to become a descending staircase from one end of the first handrail 2 in the longitudinal direction to the other end. The first handrail rod 2 and the second handrail rod 3 are parallel to each other and are inclined at the same slope as the stairs 30 from one longitudinal end to the other longitudinal end in accordance with the slope of the stairs 30. There is. In addition, when using the slope 31 shown by the dashed-dotted line of FIG. 4 instead of the stairs 30, the 1st handrail bar 2 and the 2nd handrail bar 3 can also be made to incline so that it may match the inclination of the slope 31.

As shown in FIG. 5A1, which is an enlarged perspective view of section C in FIG. 4, and FIG. 5A2, which is an enlarged side sectional view of section C in FIG. 13 is in a state of being rotated counterclockwise around the central axis of the first columnar part 16. As a result, the first handrail bar 2 moves toward the other end in the longitudinal direction and is inclined in the vertical plane.

The first mounting member 12 in the first support member 11A has therein resin-made clamping members 33a and 33b that clamp both sides of the first columnar part 16. , 33b, and is pressed and fixed by a pressing member 19. This prevents the first handrail bar 2 from shaking at one end in the longitudinal direction of the first handrail bar 2. Further, the first mounting member 12 is fixed to the support column 4 by pressing both the holding members 33a and 33b in the direction of the support column 4 using the presser member 19.

The first columnar part 16 is fixed at one end by a presser member 19 at a position rotated counterclockwise around the central axis in accordance with the inclination of the stairs 30. The first connecting portion 17 is integrally provided on the other end side of the first columnar portion 16 . Therefore, the entire first joint 13 rotates counterclockwise around the central axis of the first columnar portion 16 and is in an inclined state. Note that, as shown in FIG. 5A1, the height adjusting member 14 that changes the height of attachment to the first support 4 can be locked in a plurality of locking recesses 4a provided in the first support 4 at intervals in the vertical direction.

As shown in FIG. 5B1, which is an enlarged perspective view of section D in FIG. 4, and FIG. 5B2, which is an enlarged side sectional view of section D in FIG. When the first handrail bar 2 and the second joint 21 are viewed from above when tilted in the vertical direction, the angle formed between the two is regulated so as not to change.

The second columnar part 24 of the second joint 21 is fixed by being sandwiched between resin holding members 34a and 34b on both sides. This prevents the first handrail bar 2 from wobbling on the other longitudinal end side of the first handrail bar 2. Further, the second mounting member 20 is fixed to the support column 4 by pressing both the holding members 34a and 34b in the direction of the support column 4 with the presser member 26.

As described above, the first joint 13 of the first support member 11A at one end in the longitudinal direction of the first handrail bar 2 and the second joint 13 of the second support member 11B at the other end in the longitudinal direction of the first handrail bar 2 By rotating the joint 21 around its central axis, the inclination angle of the first handrail bar 2 in its longitudinal direction can be changed. Similarly, the inclination angle of the second handrail bar 3 in its longitudinal direction can be changed. Therefore, if the same sides of the first and second handrail bars 2 and 3 are tilted at the same angle in the vertical direction with respect to the horizontal state, the first handrail bar 2 and the second handrail bar 3 will be in a parallel state. Its longitudinal inclination angle can be adjusted to maintain

(Second embodiment)
A parallel bar 1B according to a second embodiment of the present invention will be described with reference to FIGS. 6, 7A, and 7B. In these figures, parts corresponding to those in the first embodiment are designated by the same reference numerals, and details of the parts having the same reference numerals are omitted.

The first joint 13 in the first support member 11A of the parallel bar 1 of the first embodiment was L-shaped, but the first joint 13 of the first support member 11A of the parallel bar 1B of the second embodiment is shown in FIG. 7A. As shown, it is a linear member, one end of which is inserted into the first attachment member 12, and the other end of which is fitted into a groove 15a provided in the connecting portion 15 of the first handrail bar 2. The groove 15a has a long groove shape along the longitudinal direction of the first handrail bar 2, and when the inclination angle of the first handrail bar 2 is changed, the position of the connecting part 15 with respect to the first joint 13 is changed along the groove 15a. change. Although not shown, a groove may be formed in the first joint 13 and both may be configured such that the connecting portion 15 fits into this groove.

Further, in the second support member 11B in the first embodiment, the second joint 21 has an L-shape consisting of the second columnar part 24 and the second connection part 25, but the As shown in FIG. 7B, the second joint 21 in the second support member 11B is a linear member, and one end thereof is inserted into the second mounting member 20 so as to be rotatable around the central axis of the second joint 21. The other end side is fixed to the connecting part 23 of the first handrail bar 2.

The plate-shaped connecting portion 23 fixed in surface contact with the end surface of the second joint 21 has a regulation that prevents the angle formed between the first handrail rod 2 and the second joint 21 from changing when viewed from above. Configure the mechanism.

Further, the first mounting member 12 and the second mounting member 20 have a clamp structure, and a tightening lever 12a and a tightening lever 12a that can fix and release the first mounting member 12 and the second mounting member 20 from the first support column 4, respectively. 20a is provided. By loosening the tightening by the tightening lever 12a and the tightening lever 20a on the first support column 4, that is, by rotating the tightening lever 12a and the tightening lever 20a in the horizontal direction from the states shown in FIGS. 7A and 7B, the first mounting member 12 and the tightening lever 20a are loosened. The height can be changed by moving the second mounting member 20 up and down with respect to the first support 4. Conversely, by tightening the tightening lever 12a and the tightening lever 20a, that is, by rotating the tightening lever 12a and the tightening lever 20a back to the states shown in FIGS. 7A and 7B, the first mounting member 12 is attached to the first support column 4. It is possible to fix the second mounting member 20 and the second mounting member 20 immovably. Although the explanation is omitted, the same applies to the second support column 5 side.

In the parallel bar 1B of the second embodiment shown in FIG. 6, one longitudinal end side of the first handrail bar 2 (section E side in FIG. 6) is lifted upward compared to the other end side (section F side in FIG. 6). It is in a sloping state. When one longitudinal end of the first handrail bar 2 is lifted to a higher position on the first support column 4, the position of the connecting portion 15 of the first support member 11A relative to the first joint 13 changes, and the first handrail bar 2 At the other end in the longitudinal direction, the second joint 21 of the second support member 11B rotates counterclockwise about its central axis, resulting in the state of the first handrail bar 2 shown in FIG. 6. The same applies to the second handrail bar 3.

In the first and second embodiments, the horizontal cross section of the first support 4 and the second support 5 is circular, but for example, the horizontal cross section of each support is rectangular or D-shaped, and the first support The regulating mechanism may be configured by forming the member 12 and the second mounting member 20 in a shape that follows these pillars.

(Third embodiment)
A parallel bar 1C according to the third embodiment will be described using FIGS. 8, 9A, and 9B. In each figure, parts corresponding to those in the first and second embodiments are denoted by the same reference numerals, and details of parts related to the same reference numerals are omitted.

In the first and second embodiments, the two first columns 4 support one end and the other end of the first handrail bar 2 in the longitudinal direction, and the two second columns 5 support the second handrail bar 3. Although an example has been described in which one longitudinal end and the other end are supported, in the third embodiment, the pair of handrail bars 51 and 52 are supported by the first support 4 and the second support 5. It is a structure that is supported by a separate support.

That is, the parallel bars 1C include a pair of handrail bars 51 and 52 arranged parallel to each other with an interval, and extendable columns 53a and 53b to which one end side and the other end side of the pair of handrail bars 51 and 52 are respectively attached. It has a structure in which the angles of the handrail bars 51 and 52 can be arbitrarily changed vertically above the supports 53a and 53b and the supports 54a and 54b.

These pillars 53a, 53b and pillars 54a, 54b have substantially rectangular parallelepiped-shaped inner cylinders 56a, 56b fitted into fixed substantially rectangular parallelepiped-shaped outer cylinders 55a, 55b so as to be expandable and retractable in the vertical direction. Further, although not shown, a gas spring with a locking mechanism is built into each of the outer cylinders 55a, 55b and the inner cylinders 56a, 56b of one of the pillars 53a, 54a and the other pillars 53b, 54b. Stepping on each lock release pedal 70 disposed on the outer lower side of each outer cylinder 55a, 55b of one pillar 53a, 54a and the other pillar 53b, 54b releases the lock by the lock mechanism and expands and contracts the gas spring. It is now possible.

In one of the supports 53a, 54a, as shown in FIG. 9A, one end of a first joint 57 that is rotatable in a vertical plane in the longitudinal direction of the handrail bars 51, 52 is provided on the upper surface of one inner cylinder 56a. It is supported by a rotation shaft 58. The other end of the first joint 57 is rotatably supported by a rotation shaft 60 on the connecting portion 59 of the handrail rods 51 and 52.

In the other support columns 53b and 54b, as shown in FIG. 9B, a connecting portion 61 fixed to the handrail rods 51 and 52 is pivotally supported by a rotation shaft 62 on the upper surface of the other inner cylinder 56b.

From the above, in the parallel bar 1C, by stepping on the lock release pedal 70, the columns 53a and 54a on one side are extended to the same length, and the columns 53b and 54b on the other side are reduced to the same length. The handrail bars 51 and 52 are tilted vertically at the same angle from a horizontal state.

Therefore, the amount by which the inner cylinders 56a, 56b are pulled out can be changed so as to arbitrarily change the inclination angle of the handrail bars 51, 52 according to the exerciser. Further, even if the inclination angle of the handrail bars 51, 52 is changed, the parallel state of the handrail bars 51, 52 is maintained, so it is easy to use.

Note that instead of providing a gas spring with a locking mechanism, the height position of the inner cylinder may be adjusted using a height adjustment pin as in the first and second embodiments, and the outer cylinder can be adjusted with respect to the fixed inner cylinder. It may be configured so that it is fitted onto the outside so that it can be expanded and contracted.

Although not shown, the first joint 57 is removed from one longitudinal end of the handrail bars 51, 52 (the side in FIG. 9A), and the connecting portion 59 of the handrail bars 51, 52 is rotated with respect to the inner cylinder 56a. The outer cylinder 55a and the inner cylinder 56a are integrally attached at a position below the outer cylinder 55a at one longitudinal end of the handrail rods 51, 52 and rotate in the vertical direction of the handrail rods 51, 52 ( It may be configured so that it can swing (oscillate). In short, any configuration may be used as long as the angle of inclination of the handrail bars 51 and 52 can be changed.

By changing the inclination angles of the handrails 51 and 52, it becomes possible not only to walk on a horizontal plane but also to use a combination of the above-mentioned slopes or stairs, increasing the variety of walking movements. Moreover, the height and angle of inclination of the handrail bars 51 and 52 can be arbitrarily changed simply by expanding and contracting the columns. Therefore, the height position and angle of the handrail bars 51, 52 can be adjusted more precisely according to the body shape of the exerciser, and the adjustment operation is also simplified.

The present invention is not limited to the above-described embodiments, and can be modified in various ways without departing from the spirit thereof.

1, 1B, 1C parallel bars 1A, parallel bar type exercise device
2 First handrail bar 3 Second handrail bar 4 First support 5 Second support 6 First connection part 7 Second connection part 8 Third connection part 11A First support member 11B Second support member 12 First mounting member 13 First joint 15 Connection part 16 First columnar part 17 First connection part 17a Plate-like projection 18 Rotation shaft 19 Pressing member 20 Second mounting member 21 Second joint 23 Connection part 23a Position regulating pin 24 Second columnar part 25 Second connection part 25a Notch 26 Holding member 51, 52 Handrail bar 53a, 53b Support 54a, 54b Support 55a, 55b Outer cylinder 56a, 56b Inner cylinder

Claims (16)

A pair of handrail bars arranged parallel to each other at intervals,
a post to which each of the pair of handrail bars is attached;
a support member that is attached to the support column so that its height can be changed and supports the handrail bar;
By making the handrail bar movable in the longitudinal direction of the handrail bar while the handrail bar is supported by the support member,
When the entire pair of handrail bars are tilted at the same angle in the vertical direction with respect to the horizontal state,
The support member is configured such that the pair of handrail bars maintain a parallel state and a distance between the pair of handrail bars is maintained.
A support structure for a handrail bar characterized by: The support member includes a first support member and a second support member,
The first support member includes a first attachment member that is attached to the support column so that the height can be changed, and a first joint that connects the first attachment member and the handrail rod,
The handrail bar includes a connection portion to which the first joint is connected,
the first joint is movably connected to the connection part;
The support structure for a handrail bar according to claim 1, characterized in that: The first joint includes a first columnar portion rotatably connected to the first mounting member around a central axis;
a first connecting part connected to the connecting part so as to be rotatable in a vertical plane including the longitudinal direction of the handrail rod;
The support structure for a handrail bar according to claim 2, characterized in that: One of the connecting portion and the first joint has a groove along the longitudinal direction of the handrail rod, and the other of the connecting portion and the first joint is movably fitted in the groove.
The support structure for a handrail bar according to claim 2, characterized in that: The first joint is movable with respect to the first mounting member so that the distance between the pair of handrail bars can be changed.
The handrail rod support structure according to any one of claims 2 to 4, characterized in that: The first joint is fixed by sandwiching both sides of the first columnar part between clamping members and pressing the clamping member with a pressing member.
The support structure for a handrail bar according to claim 3 , characterized in that: The first attachment member is fixed to the support column by pressing the holding member in the direction of the support support with the presser member.
7. The handrail rod support structure according to claim 6. A regulating mechanism is provided for regulating the angle between the handrail rod and the first joint in plan view from changing when the handrail rod is tilted in the vertical direction.
The handrail rod support structure according to any one of claims 2 to 7, characterized in that: The second support member includes a second attachment member that is attached to the support column so that the height can be changed, and a second joint that connects the second attachment member and the handrail bar,
The second joint includes a second columnar part rotatably connected to the second attachment member around a central axis, and a second connection part connected to the handrail rod.
The handrail rod support structure according to any one of claims 2 to 8, characterized in that: The second joint is movable with respect to the second mounting member so that the distance between the pair of handrail bars can be changed.
10. The handrail rod support structure according to claim 9. The second joint is fixed by sandwiching both sides of the second columnar part between clamping members and pressing the clamping member with a pressing member.
The handrail rod support structure according to claim 9 or 10. The second attachment member is fixed to the support column by pressing the holding member in the direction of the support support with the presser member.
The handrail rod support structure according to claim 11. A regulating mechanism is provided for regulating the angle between the handrail rod and the second joint in plan view from changing when the handrail rod is tilted in the vertical direction.
The handrail rod support structure according to any one of claims 9 to 12. A pair of handrail bars arranged parallel to each other at intervals,
an extendable support column to which one end side and the other end side of the pair of handrail rods are respectively attached;
By making the handrail bar movable in the longitudinal direction of the handrail bar while the handrail bar is supported by the support column,
When the column is expanded and contracted or the column is expanded and contracted and rotated , and the entire pair of handrail bars are tilted at the same angle in the vertical direction with respect to the horizontal state, the pair of handrail bars are in a parallel state. and the distance between the pair of handrail bars is maintained.
A support structure for a handrail bar characterized by: A parallel bar comprising the handrail bar support structure according to any one of claims 1 to 14. comprising the parallel bars according to claim 15 and stairs and/or slopes installed between the supports,
A parallel bar type exercise device characterized by:

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