JP2009287718A - Movement apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a movement apparatus which can apply thrust for relatively moving a first extending member and a second extending member and has a small number of components, forming the apparatus to save a space, and whose manufacture cost can be reduced. <P>SOLUTION: The movement apparatus is provided with the first extending member 1 which includes a pair of first acting surfaces 13, 13 which lie along substantially parallel to extending direction and simultaneously face each other back to back and the second extending member 2 which includes a pair of second acting surfaces 23, 23 which oppose to the first acting surfaces 13, 13, respectively and extends in extending direction of the first extending member 1. The exercising apparatus is configured so that pressures P1, P2 acting on the first acting surfaces 13, 13 and the second acting surfaces 23, 23 are set to differ one side of the extending direction from other side of the extending direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an exercise device that expands and contracts by relatively moving a first extending member and a second extending member engaged with the first extending member in the extending direction.

2. Description of the Related Art Conventionally, exercise devices such as slide rails have been used for slide structures such as drawers and mobile phones used for storage furniture in order to smoothly perform slide movement. As such an exercise device, for example, a device disclosed in Patent Document 1 is known.
In the slide rail of Patent Document 1, a strip-shaped moving side rail and a fixed side rail extending in the same direction and facing each other are engaged with each other via a freely rolling ball (rolling element), and the extending direction Relative movement. The relative movement between the moving side rail and the fixed side rail is performed by an operator or the like moving the moving side rail in the extending direction.

Further, the slide rail unit disclosed in Patent Document 2 is provided with an auxiliary mechanism for assisting relative movement in the contraction direction between the inner rail and the outer rail facing each other, and is attached with a tension spring included in the auxiliary mechanism. The relative movement is assisted by a force. According to this configuration, the relative movement between the inner rail and the outer rail can be easily performed with a small force, and the slide rail unit can be maintained in the contracted state.
Japanese Utility Model Publication No. 2-109011 International Publication No. 2006/109579

  However, in the slide rail unit of Patent Document 2, since an auxiliary mechanism including a tension spring is used to apply a biasing force for relative movement, the number of parts of the device increases accordingly, and the manufacturing cost increases. There are challenges. In addition, since a space for operating the tension spring in the device is required, the outer shape of the device is increased accordingly. In this configuration, the direction in which the urging force is applied is limited to only one direction (contraction direction).

  The present invention has been made in consideration of such circumstances, and can provide a thrust for moving the first extending member and the second extending member relative to each other, reduce the number of parts, and reduce the space required for the apparatus. An object of the present invention is to provide an exercise device that can reduce manufacturing costs.

In order to achieve the above object, the present invention proposes the following means.
That is, the exercise device according to the present invention includes a pair of first extending members that have a pair of first working surfaces that are substantially parallel to the extending direction and that face each other, and a pair of facing first working surfaces. A second extending member having a second working surface and extending in an extending direction of the first extending member, wherein the pressure acting on the first working surface and the second working surface is It is characterized in that it is set differently on one side and the other side in the present direction.
In addition, the exercise device according to the present invention includes a pair of first extending members having a pair of first working surfaces that are substantially parallel to the extending direction and facing each other, and a pair of facing first working surfaces. A second extending member having a second working surface and extending in an extending direction of the first extending member, the pressure acting on the first working surface and the second working surface, The first extending member and the second extending member are moved relative to each other.

  According to the exercise device of the present invention, the pressure is applied to the first working surface and the second working surface that face each other, and the pressure is different between one side and the other side in the extending direction. Is set to cause a pressure difference between the high pressure portion and the low pressure portion, the thrust in the extending direction is applied (biased), and the first extending member and the second extending member are Move relative to each other.

That is, the first extending member and the second extending member can be moved relative to each other with a simple configuration with a small number of parts without applying thrust using a tension spring or the like as in the prior art. Therefore, the manufacturing cost can be reduced and the apparatus can be formed in a space-saving manner.
In addition, it is possible to freely determine which direction in the extending direction is applied depending on the pressure setting, so that the exercise device can be expanded or contracted according to the purpose, and can respond to various demands and applications. .

  Moreover, in the exercise apparatus of the present invention, it is provided with a transfer means that is disposed between the first working surface and the second working surface and moves the first extending member and the second extending member relative to each other. Also good.

  According to the exercise device of the present invention, the transfer means is disposed between the first action surface and the second action surface, and pressure is applied to the first action surface and the second action surface facing each other across the transfer means. By acting, thrust in the extending direction is applied to the transfer means, and the transfer means moves relative to the first working surface or / and the second working surface in the extending direction, and the first extending member and the second extending member are moved. The existing member is moved relative to each other. Therefore, for example, if the transfer means is formed of a sphere, a hemisphere, a protruding member, or a sliding sheet having a small frictional resistance with respect to the first and second working surfaces, the transfer means can be transferred relatively easily and with a smaller pressure. The exercise device can be expanded and contracted.

  In the exercise device of the present invention, at least one of the first extending member and the second extending member may be elastically deformable, and the pressure may be generated by the elastic deformation.

  According to the exercise device of the present invention, the first extending member or / and the second extending member are made of an elastically deformable, for example, a thin plate-like metal spring or a resin material, and face the first working surface by elastic deformation. A pressure is applied between the first working surface and the second working surface. Further, by setting the degree of elastic deformation in various ways, it is possible to vary the pressure in each part in the extending direction. In this way, the first extending member and / or the second extending member are elastically deformed, and a high pressure portion and a low pressure portion are set, and the thrust is applied by applying the pressure difference. The first extending member and the second extending member can be moved relative to each other. Therefore, the exercise device can be configured more simply and can be formed in a space-saving manner.

  In the exercise device of the present invention, the distance between the first working surface and the second working surface may be set so as to gradually narrow or widen from one side to the other side in the extending direction. Good.

  According to the exercise device of the present invention, the distance between the first working surface and the second working surface facing each other is set so as to gradually narrow or widen from one side to the other side in the extending direction. The pressure acting on the first working surface and the second working surface is set so as to gradually increase or decrease from one side in the extending direction toward the other side with this interval. Thus, when a pressure difference arises between the high pressure portion and the low pressure portion, the first extending member and the second extending member are urged in the extending direction to move relative to each other.

In the exercise device of the present invention, the transfer means may be elastically deformable, and the pressure may be generated by the elastic deformation.
According to the exercise device of the present invention, since the transfer means disposed between the first working surface and the second working surface can be elastically deformed, the first working surface and the second working surface are formed by elastic deformation. The first extending member and the second extending member can be urged in the extending direction to move relative to each other.

  In addition, the exercise device according to the present invention includes a first extending member having a pair of first working surfaces arranged in the back direction, and a pair of second working surfaces facing the first working surface and facing each other. A second extending member and a pair of transfer means disposed between the first and second working surfaces, wherein the distance between the first working surface and the second working surface is one of the extending directions. It is set to gradually narrow from the side toward the other side, and is biased by at least one of the elastic forces of the first and second extending members and the transfer means, and the first and second The extending member is configured to relatively move in the extending direction.

According to the exercise device of the present invention, for example, the cross-sectional shapes orthogonal to the extending direction of the first extending member and the second extending member are formed in a U shape, a C shape, or a U shape, respectively. The pair of first working surfaces of the first extending member and the pair of second working surfaces of the second extending member face each other, and a transfer means is disposed between the first and second working surfaces. Yes. Since the distance between the first working surface and the second working surface facing each other is set so as to gradually decrease from one side in the extending direction to the other side, the first working surface and the second working surface are set. The pressure acting on the surface is set so as to gradually increase from one side of the extending direction toward the other side with this interval.
Thus, by providing the one side part with high pressure and the other side part with low pressure, the transfer means is transferred from one side to the other side, and the first extending member and the second extending member are Acts so as to be relatively moved in the extending direction.

  In the exercise apparatus of the present invention, the transfer means may be a hemisphere or a sphere, and may be provided with a holding means that is formed integrally with or separate from the transfer means and holds the transfer means.

According to the exercise device of the present invention, the transfer means is formed of a hemisphere or a sphere, and the spherical outer periphery can keep the area in contact with the first and second working surfaces relatively small. The resistance is reduced, and the relative movement of the first and second extending members can be performed more smoothly.
In addition, since the holding means holds the transfer means integrally or separately, the transfer means is prevented from falling off the exercise device during expansion and contraction. In addition, for example, even when the apparatus is configured by using a plurality of spherical rolling elements as a transfer means, the rolling elements can be held so as to be arranged in a separated state. Adjacent rolling elements are prevented from interfering with each other, and the pressure acting on each rolling element can be set in a well-balanced manner. Further, since the plurality of rolling elements roll at substantially the same time so as to be guided integrally with the holding means, the movement is performed more smoothly.

  According to the exercise device according to the present invention, the thrust for moving the first extending member and the second extending member relative to each other in the extending direction can be provided with a simple configuration, so that the number of parts is small and the device is saved in space. It can be formed, the manufacturing cost can be reduced, the freedom of movement is increased, and it is possible to meet various demands and applications.

Embodiments of the present invention will be described below with reference to the drawings.
1 is a transparent perspective view showing a contracted state of an exercise device according to an embodiment of the present invention, FIG. 2 is a transparent perspective view showing an extended state of the exercise device according to an embodiment of the present invention, and FIG. 3 is an embodiment of the present invention. It is a front view which shows the exercise device of a form.

  As shown in FIG. 1 to FIG. 3, a slide rail 10 as an exercise device according to an embodiment of the present invention faces an extending inner rail (first extending member) 1 and the inner rail 1. It has an outer rail (second extending member) 2 extending in the same direction. The inner rail 1 and the outer rail 2 are made of, for example, a metal spring such as thin plate-shaped iron, stainless steel, or copper, or a resin material, and are elastically deformable.

  As shown in FIG. 3, the inner rail 1 has a substantially U-shaped, substantially C-shaped or substantially U-shaped cross section in the width direction (left-right direction in FIG. 3) orthogonal to the extending direction. The central portion of the inner rail 1 in the width direction is a flat mounting portion 11, and side walls 12, 12 are formed at both ends in the width direction of the mounting portion 11 so as to form an angle θ 1 with the mounting portion 11, respectively. Is provided. The angle θ1 is an acute angle smaller than a right angle.

  First rolling element rolling surfaces (first working surfaces) 13 and 13 each formed of a concave groove having an arcuate cross section are formed in the vicinity of the front ends of the respective surfaces of the inner rail 1 facing the width direction outward of the side walls 12 and 12. Has been. These first rolling element rolling surfaces 13, 13 extend in the extending direction of the inner rail 1.

  As shown in FIGS. 1 and 2, the mounting portion 11 of the inner rail 1 is provided on one side (the lower left-upper right direction in FIGS. 1 and 2) of the inner rail 1 (FIG. 1, FIG. 2). A plurality of through-holes 14 are provided in the vicinity of the end on the lower left side in FIG. These through holes 14 are used when the article to be moved is fixed to the upper surface (upper surface in FIG. 3) of the attachment portion 11 with screws or the like.

  Further, a plate-like inner stopper 15 is provided at the end of the other side (upper right side in FIGS. 1 and 2) in the extending direction of the mounting portion 11 of the inner rail 1 so as to hang from the mounting portion 11. , Extending in the width direction. In this embodiment, the inner stopper 15 is provided only at the other end of the mounting portion 11, but the inner stopper 15 may be provided at one end of the mounting portion 11.

  As shown in FIG. 3, the outer rail 2 is formed such that the cross section in the width direction orthogonal to the extending direction is substantially U-shaped, substantially C-shaped or substantially U-shaped. The central portion of the outer rail 2 in the width direction is a flat mounting portion 21, and side walls 22, 22 are formed at both ends in the width direction of the mounting portion 21 so as to form an angle θ 2 with the mounting portion 21. Is provided. Further, the angle θ2 is an obtuse angle larger than a right angle.

  Second rolling element rolling surfaces (second working surfaces) 23 and 23 formed of concave grooves having an arcuate cross section are formed in the vicinity of the tips of the respective surfaces facing the inner side in the width direction of the side walls 22 and 22 of the outer rail 2. Has been. These second rolling element rolling surfaces 23, 23 extend in the extending direction of the outer rail 2.

  Further, the first rolling element rolling surface 13 of the inner rail 1 and the second rolling element rolling surface 23 of the outer rail 2 face each other with a space D therebetween, and each cross-sectional concave groove The circular arc radius is set to substantially the same dimension. The interval D is set to about twice the arc radius and is substantially constant in the extending direction.

  As shown in FIGS. 1 and 2, the mounting portion 21 of the outer rail 2 has a through-hole 24 in a protruding portion that protrudes on one side and the other side in the extending direction of the outer rail 2. Is formed. These through holes 24 are used when the slide rail 10 is fixed to the base of the lower surface (the lower surface in FIG. 3) of the mounting portion 21 with screws or the like.

  Further, a plate-like outer stopper 25 extending in the extending direction is formed near one end in the extending direction of the mounting portion 21 of the outer rail 2 so as to rise substantially perpendicular to the mounting portion 21. Further, a plate-like outer stopper 26 is provided at the other end of the attachment portion 21 so as to rise substantially perpendicularly to the attachment portion 21 and extend in the extending direction.

  A plurality of spherical rolling elements (transfer means) 3 are provided between the first rolling element rolling surfaces 13 and 13 of the inner rail 1 and the second rolling element rolling surfaces 23 and 23 of the outer rail 2. It is arranged. These rolling elements 3 are made of a metal material, a resin material, or the like whose hardness is higher than that of the inner rail 1 and the outer rail 2, and roll between the first rolling element rolling surface 13 and the second rolling element rolling surface 23. It is possible. The diameter of the rolling element 3 is set to be approximately the same as the distance D between the first rolling element rolling surface 13 and the second rolling element rolling surface 23 facing each other.

  Further, a cage (holding means) 4 extending in the extending direction of the inner rail 1 and the outer rail 2 is disposed between the inner rail 1 and the outer rail 2 that are arranged to face each other. As shown in FIG. 3, the cage 4 has a cross section in the width direction formed in a substantially U shape, a substantially C shape, or a substantially U shape. A central portion in the width direction of the cage 4 is a flat main plate 41, and side walls 42 and 42 raised toward the inner rail 1 are provided at both ends of the main plate 41 in the width direction. .

  A plurality of circular rolling element holding holes 43 are formed in the side walls 42 and 42 of the cage 4 so as to be separated from each other in the extending direction. These rolling element holding holes 43 are formed so as to penetrate the side wall 42 in the plate thickness direction, and the diameter of the holes is set slightly larger than the diameter of the rolling elements 3.

  As shown in FIGS. 1 and 2, a concave notch 44 is formed at one end in the extending direction of the main body plate portion 41 of the cage 4. The notch 44 is arranged at a position corresponding to the outer stopper 25 of the outer rail 2. Further, a plate-like cage stopper 45 is formed at the other end in the extending direction of the body plate portion 41 of the cage 4 so as to rise from the body plate portion 41 at a substantially right angle and extend in the extending direction. Is provided. The cage stopper 45 is disposed at a position corresponding to the inner stopper 15 of the inner rail 1.

Next, operation | movement of the slide rail 10 of this embodiment is demonstrated.
First, with the slide rail 10 in FIG. 1 contracted, pressure P1 and / or pressure P2 is applied to the rolling element 3 from the width direction as shown in FIG.
The pressures P1 and P1 are applied by elastically deforming the side walls 12 and 12 of the inner rail 1 and urging outwardly in the width direction so as to increase the angles θ1 and θ1 with the mounting portion 11, respectively.

  The pressures P2 and P2 are applied by elastically deforming the side walls 22 and 22 of the outer rail 2 and urging them inward in the width direction so as to reduce the angles θ2 and θ2 with the mounting portion 21, respectively.

Here, the pressure P1 and / or the pressure P2 are set as follows.
For convenience of explanation, the pressures P1 and P2 in the portion A near one end in the extending direction in FIG. 1 are PA, the pressures P1 and P2 in the portion B near the center in the extending direction are PB, and the other in the extending direction When the pressures P1 and P2 in the portion C near the end on the side are PC, the pressure P1 and / or the pressure P2 is applied so that the relationship between PA, PB, and PC is PA <PB <PC. That is, by setting the pressures P1 and P2 to be different between one side and the other side in the extending direction, a high pressure portion and a low pressure portion are provided and a pressure difference is generated.

  Thus, by applying the pressure P1 or / and the pressure P2, the rolling elements 3 arranged between the C part and the B part are moved to one side in the extending direction due to the pressure difference between the pressure PC and the pressure PB. Directional thrust is given (energized). Further, the rolling element 3 disposed between the B part and the A part is given a thrust toward one side in the extending direction by a pressure difference between the pressure PB and the pressure PA.

  In this state, when the static friction force between the rolling element 3 and the first rolling element rolling surface 13 or the second rolling element rolling surface 23 exceeds the maximum static friction force, as shown in FIG. 3 rolls toward one side in the extending direction. As the rolling element 3 rolls to one side in this way, the inner rail 1 that contacts the inner side in the width direction of the rolling element 3 and the outer rail 2 that contacts the outer side in the width direction move relatively in opposite directions. Be made. In addition, the cage 4 that holds the rolling elements 3 also moves to one side as the rolling elements 3 roll. Here, the relative movement amount of the inner rail 1 to the one side with respect to the outer rail 2 is approximately twice the relative movement amount of the cage 4 to the one side with respect to the outer rail 2.

  When the cage 4 moves to one side in the extending direction with respect to the outer rail 2, the other end of the outer stopper 25 of the outer rail 2 and the one end of the notch portion 44 of the cage 4. And the relative movement between the cage 4 and the outer rail 2 stops. Further, when the inner rail 1 moves to one side in the extending direction with respect to the cage 4, the surface facing the one side of the inner stopper 15 of the inner rail 1 and the other side of the cage stopper 45 of the cage 4. The end portion comes into contact, and the relative movement between the inner rail 1 and the cage 4 stops. The state in which the relative movement of the inner rail 1, the outer rail 2, and the cage 4 is stopped in this way is the extended state of the slide rail 10 in FIG.

  Further, in the state where the slide rail 10 is extended, by applying the pressure P1 and / or the pressure P2 so that the relationship of the pressures PA, PB, and PC is PA> PB> PC, the operation of the slide rail 10 described above is performed. The inner rail 1, the outer rail 2, and the cage 4 can be moved relative to each other in the opposite direction, and the slide rail 10 can be returned to the contracted state in FIG. In this manner, the expansion and contraction operation of the slide rail 10 can be performed repeatedly.

  As described above, according to the slide rail 10 of the present embodiment, the first rolling element rolling surface 13 and / or the second rolling element rolling surface 23 are the first rolling element rolling surface 13 and the second rolling element rolling surface 13. A pressure P1 and / or P2 for pressing the rolling elements 3 arranged between the rolling element rolling surfaces 23 is applied, and the pressures P1 and P2 are applied to the first rolling element rolling surfaces 13 and the first rolling elements. The two rolling element rolling surfaces 23 are set differently on the one side and the other side in the extending direction. Since the pressure difference is generated by setting the high pressure P1 and P2 portions and the low pressure P1 and P2 portions in this manner, the rolling element 3 is moved from the high pressure P1 and P2 low pressure portions to the low pressure P1 and P2 portions. The inner rail 1 and the outer rail 2 are moved relative to each other by being given a thrust. That is, since the inner rail 1 and the outer rail 2 can be moved relative to each other with a simple configuration with a small number of parts without using a member such as a tension coil spring as in the prior art, the manufacturing cost can be reduced, and the apparatus can be reduced. Space-saving can be formed.

  Further, since the pressures P1 and P2 for pressing the rolling element 3 can be set and changed so as to be different between one side and the other side in the extending direction, the direction in which the rolling element 3 rolls can be freely set. . Accordingly, the degree of freedom of movement of the slide rail 10 is increased, and it is possible to meet various demands and applications.

  In addition, since the cage 4 holds the rolling element 3, the rolling element 3 does not fall off the slide rail 10 during the expansion / contraction motion. Further, since the cage 4 separates the plurality of rolling elements 3 and holds them so as to be able to roll, the rolling elements 3 are prevented from interfering with each other when the slide rail 10 is expanded and contracted. Since the plurality of rolling elements 3 roll at substantially the same time so as to be guided integrally to the cage 4, the movement is performed more smoothly. Further, since the pressures P1 and P2 acting on each rolling element 3 can be set in various ways, the movement is performed stably and reliably.

  In addition, a plurality of rolling elements 3 are arranged between the first rolling element rolling surfaces 13 and 13 and the second rolling element rolling surfaces 23 and 23 facing each other, and act on each rolling element 3. Since the thrust in the extending direction is applied to the rolling elements 3 due to the pressure difference, the relative movement between the inner rail 1 and the outer rail 2 is performed stably and smoothly.

  Further, the inner rail 1 and the outer rail 2 are made of a thin plate-like metal spring or a resin material that can be elastically deformed in the width direction, and the first rolling element rolling surface 13 and the second rolling element rolling that face each other by this elastic deformation. The rolling elements 3 are pressed so as to reduce the distance D between the surface 23 and the pressures P1 and P2 are generated. That is, by setting various degrees of elastic deformation in each part in the extending direction, the pressures P1 and P2 can be partially changed, and the inner rail 1 and the outer rail 2 can be moved relative to each other. The degree of freedom of expansion and contraction movement of the rail 10 is increased, and various demands and applications can be met.

  Moreover, since the hardness of the rolling element 3 is set higher than the hardness of the inner rail 1 and the hardness of the outer rail 2, when the pressure P1, P2 is applied to the rolling element 3, the rolling element 3 becomes the pressure P1. , P2 is prevented from being crushed or deformed. Therefore, the relative movement between the inner rail 1 and the outer rail 2 can be performed stably over a long period of time without impeding the rolling of the rolling element 3.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the present embodiment, the inner rail 1 and the outer rail 2 have been described as being made of a metal spring, a resin material, or the like that can be elastically deformed. Only one of them may be elastically deformable.

  In the present embodiment, the pressures P1 and P2 have been described as being applied by the urging force of elastic deformation of the inner rail 1 and / or the outer rail 2, but any configuration can be used as long as the pressures P1 and P2 can be applied. It is not limited to. That is, for example, the rolling elements 3 are formed of an elastically deformable resin material or the like, and pressures P1 and P2 are applied to the first rolling element rolling surface 13 and the second rolling element rolling surface 23 by elastic deformation, respectively. Thus, the inner rail 1 and the outer rail 2 may be urged in the extending direction to move relative to each other. In this case, the hardness of the rolling element 3 is preferably set lower than the hardness of the first rolling element rolling surface 13 and the hardness of the second rolling element rolling surface 23.

  Moreover, in this embodiment, although demonstrated as the space | interval D of the 1st rolling-element rolling surface 13 and the 2nd rolling-element rolling surface 23 which face each other being substantially constant in the extending direction, it is not restricted to this, By setting the distance D to be different between the one side and the other side in the extending direction, the pressures P1 and P2 may be set variously and applied to the rolling element 3.

  That is, if the distance D between the first rolling element rolling surface 13 and the second rolling element rolling surface 23 facing each other is set so as to gradually narrow or widen from one side to the other side in the extending direction, The pressures P1 and P2 acting on the first rolling element rolling surface 13 and the second rolling element rolling surface 23 gradually increase from one side to the other side in the extending direction along with the distance D. Or it is set to decrease. In this way, if the pressure difference is generated by providing the high pressure portions P1 and P2 and the low pressure portions P1 and P2, the inner rail 1 and the outer rail 2 are urged in the extending direction, Moving.

  In the present embodiment, the rolling element 3 is described as being spherical. However, the present invention is not limited to this, and the rolling element 3 may be formed by a substantially cylindrical or barrel-shaped roller and rolled. Moreover, the quantity of the rolling elements 3 is not limited to this embodiment.

  Further, instead of the rolling element 3, a curved, spherical, or protruding sliding body (transfer means) formed integrally with the first rolling element rolling surface 13 or the second rolling element rolling surface 23 is provided. The tip of the sliding body is brought into contact with the first rolling element rolling surface 13 or the second rolling element rolling surface 23 on the side where the sliding body is not formed, and pressure P1, P2 is applied to the sliding body to extend. The inner rail 1 and the outer rail 2 may be moved relative to each other by sliding in the direction.

Further, as other transfer means, for example, a slidable sheet-like member or a coating film may be used.
Note that, as in this embodiment, the rolling element 3 made of a sphere having a small frictional resistance with respect to the first and second rolling element rolling surfaces 13 and 23 is used as a transfer means, so that the slide is performed with smaller pressures P1 and P2. This is preferable because the rail 10 can be expanded and contracted.

It is a permeation | transmission perspective view which shows the contraction state of the exercise device of one Embodiment of this invention. It is a permeation | transmission perspective view which shows the expansion | extension state of the exercise device of one Embodiment of this invention. It is a front view showing an exercise device of one embodiment of the present invention.

Explanation of symbols

1 Inner rail (first extension member)
2 Outer rail (second extending member)
3 Rolling elements (transfer means)
4 Cage (holding means)
10 Slide rail (exercise device)
13 First rolling element rolling surface (first working surface)
23 Second rolling element rolling surface (second working surface)
D Distance between first rolling element rolling surface and second rolling element rolling surface P1, P2 pressure

Claims (8)

A first extending member having a pair of first working surfaces that are substantially parallel to the extending direction and face each other;
A second extending member having a pair of second acting surfaces that respectively face the first acting surface and extending in an extending direction of the first extending member;
The exercise device, wherein the pressure acting on the first working surface and the second working surface is set to be different between one side and the other side in the extending direction. The exercise device according to claim 1,
An exercise device comprising transfer means arranged between the first action surface and the second action surface to move the first extension member and the second extension member relative to each other. The exercise device according to claim 1 or 2,
At least one of the first extending member and the second extending member can be elastically deformed, and the pressure is generated by the elastic deformation. The exercise device according to any one of claims 1 to 3,
The exercise device is characterized in that an interval between the first working surface and the second working surface is set so as to gradually narrow or widen from one side in the extending direction to the other side. The exercise device according to any one of claims 2 to 4,
The exercise device is characterized in that the transfer means is elastically deformable, and the pressure is generated by the elastic deformation. A first extending member having a pair of first working surfaces that are substantially parallel to the extending direction and face each other;
A second extending member having a pair of second acting surfaces that respectively face the first acting surface and extending in an extending direction of the first extending member;
An exercise device, wherein the first extending member and the second extending member are relatively moved by pressure acting on the first working surface and the second working surface. A first extending member having a pair of first working surfaces arranged in the back direction;
A second extending member having a pair of second working surfaces facing each of the first working surfaces and facing each other;
A pair of transfer means disposed between the first and second working surfaces,
The distance between the first working surface and the second working surface is set so as to gradually decrease from one side of the extending direction to the other side,
It is a structure which is urged | biased by the elastic force of at least any one of the said 1st, 2nd extending member or the said transfer means, and moves the said 1st, 2nd extending member relatively in the extending direction. An exercise device characterized by. The exercise device according to claim 7,
The transfer means comprises a hemisphere or a sphere,
An exercise apparatus comprising: a holding unit that is formed integrally with or separate from the transfer unit and holds the transfer unit.

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