JPH05329229A - Sport motion unit - Google Patents

Abstract

PURPOSE: To obtain a sporting exercise unit provided with a spring member with a feature of safety, by equipping the unit with an arch shaped plate of the spring member so as to be automatically disassembled by abnormal lateral force action. CONSTITUTION: An upper plate 7 is mounted on a foot housing member 3 and a dent part 21 is snap-fit into the upper part of a strip 17 and a dent 23 the upper part of a strip 19. A sole 48 is attached on the bottom face of a lower plate 9, and a dent part 25 is snap-fit into the lower part of a strip 17 and a dent part 27 the lower part of a strip 19. Nipples 29, 37 abut on the right side edges of a pad 13, and nipples 35, 43 the left side edges of the pad 13. Further a nipple 33 abuts on the right side edge of a pad 15 and nipples 35, 43 the left side edges of the pad 15. When a strong lateral force is applied on the unit, the lateral force overcomes the holding restriction force of the nipples, and plates 7, 9 move in the lateral direction relatively to a band plate 11 to unlock the snap-fitting between the strips 17, 19 and the dent parts to disassemble whole the unit 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sports exercise unit comprising a foot accommodating member and a spring member fixed to the bottom of the foot accommodating member. More specifically, the present invention provides
The present invention relates to a unit having a novel structure of a spring member detachably attached to the bottom of a foot accommodating member.

[0002]

BACKGROUND OF THE INVENTION Such sports exercise equipment is known in the art, for example, as shown in US Pat. No. 4,492,374 to Lekhtman et al. Issued Jan. 8, 1985. However, the unit as disclosed in this patent 4,492,374 has some drawbacks as follows.

[0003]

First, because the spring member is permanently attached to the foot receiving member, the overall assembly unit of the present invention, as shown in FIG. Must be carried around in the form of
This can be inconvenient. Secondly, the plates 5 and 7 forming the spring member are fixed to each other and also fixed to the spring constant and weight adjusting mechanism 13 by a structure including the buckle 33, the rod 35 and the circular rubber member 39. Due to the nature of this fixed assembly, the spring members do not automatically disassemble in the event of abnormal forces, which can be dangerous. For example, should the user step on the edge of the sidewalk, the above configuration will bend under the user, which may result in the user falling down and injuring a sprain or ankle. There is a possibility of

Thirdly, in the above-mentioned Japanese Patent No. 4,492,374, since the metal members 13, 15, 17 are required, the unit is relatively heavy. Fourth, the spring constant and weight adjusting mechanism 13
Is awkward and heavy. Therefore, it is an object of the present invention to provide a sports exercise unit that includes a spring member that provides a safe feature.

Another object of the present invention is to provide a sports exercise unit having a spring member that is completely separable from the foot housing member so that the disassembled spring member can be housed in the foot housing member. It is in. It is a further object of the present invention to provide a sports exercise unit that comprises a spring member made entirely of plastic, thereby reducing the durability and weight of the spring member.

It is a further object of the present invention to provide a sports exercise unit with a variable spring constant and weight adjustment means.

[0007]

According to the present invention, there is provided A) a foot accommodating member, and B) a plastic spring member disposed at the bottom of the foot accommodating member and removably attached thereto. ,
The spring member includes i) an arch-shaped upper plate having a first end and a second end, ii) an arch-shaped lower plate having a first end, a second end, a bottom surface and an upper surface, and iii) a third And a spring constant and weight adjusting means arranged between the upper plate and the lower plate, the first end of the upper plate and the lower end of the upper plate. The first end of the plate is removably attached to the first end of the spring constant and weight adjusting means, and the second end of the upper plate and the second end of the lower plate are the springs. The spring constant and weight adjusting means is detachably attached to the second end of the constant and weight adjusting means, and the spring constant and weight adjusting means includes a strip plate member having a first end and a second end. A first snap fitting means provided at one end and a second snap fitting means provided at a second end of the strip member, the first end of the upper plate and the second snap fitting means being provided. And the first end of the lower plate is snap-fitted and received by the first snap fitting means, and the second end of the upper plate and the second end of the lower plate are the second snap fitting means. A sports exercise unit is provided that is snap-fitted to and received by which the spring member automatically disassembles under the action of an abnormal lateral force.

[0008]

The invention will be understood more clearly from the following description with reference to the accompanying drawings. Referring to the drawings
The sports exercise unit, generally designated by 1, includes a foot storage member 3
And a spring member 5. U.S. Pat.No. 4,492,374
As the issue teaches, the foot receiving member may be adjustable. Instead, the foot housing member 3 comprises a sized boot, as shown in FIG.

The spring member 5 has an upper plate 7 and a lower plate 9. Both the upper plate 7 and the lower plate 9 are made of a strong and flexible plastic material. As can be seen from the figure, the upper plate 7 and the lower plate 9 are arch-shaped so that when the spring member 5 is assembled, the spring member 5 has an annular shape, for example, an elliptical shape. Between the upper plate 7 and the lower plate 9, a spring constant and weight adjusting means made of a plastic strip 11 is arranged. A heavy and thick strip 1 to provide a large resistance or to support a large weight
1 is used. On the other hand, a light and thin plastic strip 11 is used to provide a small resistance or to support a small weight.

However, all of the above changes are factory adjustments. In order to maintain the right choice, retailers must have large inventories. According to a feature of the present invention, the stock requirement as described above can be reduced by making the plastic strip 11 from a material that can be gradually trimmed to adjust the spring constant and the size of the weight adjusting means. .. According to a preferred feature of the invention,
The strip 11 has markings 100 on at least one surface, as seen in FIG. The end user scrapes the strip 11 up to the mark 100 that suits his or her unique requirements.

The strip 11 has first and second ends, the pad 13 covering the first end and the pad 15 covering the second end. A strip 17 lies on the pad 13, and a strip 19 lies on the pad 15. In the preferred embodiment, the strips 17, 19 are aligned with each other and are located in the center of each of the pads 13, 15.

Each plate 7, 9 has a first end and a second end.
Recesses 21 and 23 are provided at the first end and the second end of the upper plate 7, respectively, and similar recesses 25 and 27 are provided at the first end and the second end of the lower plate 9, respectively. Recesses 21, 23, 2
The width of 5, 27 is such that it can be snapped onto the corresponding location of the strips 17, 19. Therefore, the recess 21
Are snap-fitted on the upper part of the strip 17, while the recesses 25 are snap-fitted on the lower part of the strip 17.
Similarly, the recess 23 snaps onto the top of the strip 19 and the recess 27 snaps onto the bottom of the strip 19.

Nipples 29 and 31 extend from the first end of the upper plate 7, and nipples 33 and 35 extend from the second end of the upper plate 7. Similarly, from the first end of the lower plate 9 to the nipple 37,
39 extends from the second end of the lower plate 9 to the nipples 41, 43.
Is extended. When the spring member 5 is assembled, the nipples 29 to 43 come into contact with the respective edges of the pads 13 and 15.

The upper plate 7 is detachably fixed to the foot accommodating member 3 by a screw 45 extending through an opening 47 of the upper plate 7. A screw receiving bolt is preferably provided on the bottom of the foot receiving member 3 for receiving the screw 45. According to this, the upper plate 7 can be easily attached to and detached from the foot housing member 3. A sole 48 is detachably attached to the lower surface of the lower plate 9. The sole 48 is attached to the lower plate 9 by screws 49. Again, it is preferable to provide the lower plate 9 with screw receiving bolts for receiving the screws 49.

In the assembling work, first, the upper plate 7 is attached to the foot accommodating member 3 with the screw 45 as described above. Then, the recess 21 is snap-fitted on the upper portion of the strip 17, and the recess 23 is snap-fitted on the upper portion of the strip 19. The sole 48 is attached to the bottom surface of the lower plate 9 with the screw 49 as described above. Then, the recess 25 is snap-fitted to the lower portion of the strip 17, and the recess 27 is snap-fitted to the lower portion of the strip 19. Nipple 29,
37 is in contact with the right side edge of the pad 13, while the nipple 3
1, 39 abut on the left side edge of the pad 13. Nipple 3
3, 41 contact with the right side edge of the pad 15, and the nipple 3
Reference numerals 5 and 43 contact the left side edge of the pad 15. These nipples prevent relative lateral movement of the plates 7, 9 relative to the strip 11 when only small normal lateral forces act. However, when a strong lateral force is applied (for example, when the user steps on the edge of the sidewalk), the strong lateral force overcomes the holding and restraining force of the nipple, and the plates 7, 9
Can move laterally relative to the strip 11. Then, the snap fit between the strips 17 and 19 and the recess is released, the entire unit 1 is disassembled, and the strip 11 and the lower plate 9 are separated from the upper plate 7. Thus, the user avoids stepping on the relatively flat surface of the upper plate 7 and thereby falling or twisting the ankle and spraining. Therefore, the automatic disassembly of the spring member due to the action of the abnormal lateral force can provide a safety feature which is not available in the prior art.

The bottom of the sole 48 may have a tread. When such a tread becomes worn due to use,
The following are advantages of the present invention. That is, the sole is removably mounted so that it can be replaced with a new sole when the old sole is worn out beyond its use. The problem in the above embodiment in which the tread is detachably provided on the bottom surface of the lower plate 9 is that when a small screw is used, the force acting when the unit 1 is used causes the head of the screw to pass through the sole through the sole. If you pull it, the sole will eventually fall off. If a large screw is used, the lower plate 9 will be damaged.

In order to solve the above drawbacks, another structure for detachably attaching the sole to the bottom surface of the lower plate 9 will be described.
This structure is shown in FIGS. Referring to FIGS. 3 and 4, a means 51 for releasably holding one end of the sole 48 is provided, and a second means 53 for releasably holding the other end of the sole 48 is provided with an empty space for fitting the sole 48. It will be appreciated that only one location is spaced from the first means 51. In the preferred embodiment, as shown in FIG.
The means 51 is a pocket 5 formed at one end of the bottom surface of the lower plate 9.
5 and the means 53 has a second pocket 57 formed at the other end of the bottom surface of the lower plate 9. The means 51, 53 and the sole 48, like the other parts of the spring member 5, are preferably made of a strong flexible plastic material.

As shown in FIG. 4, the sole 48 preferably has a step 59 at one end and a step 61 at the other end. These steps 59, 61 are such that when the sole 48 is placed at its respective ends in the respective pockets 55, 57,
It is provided to prevent slippage of the sole 48 within the pockets 55,57. In addition, it can be seen that the lower plate 9 is stretched by the force applied to the lower plate 9, and the tensile force acting when the lower plate 9 is stretched exerts a large stress on the central portion of the lower plate 9. In order to relieve this stress, as shown by the broken line in FIG. 1, a notch 63 is punched in the center of the lower plate 9.

The sole 48 is simply inserted into the pockets 55, 57 by bending it and inserting the respective ends of the sole 48 into the corresponding pockets 55, 57. The sole 48 is then released, which causes the sole 48 to spring back to its original shape. In addition to being able to disassemble the spring member 5 by an abnormal lateral force, it is possible to disassemble the spring member 5 by simply applying force. Furthermore, it is relatively easy to remove the upper plate 7 from the foot housing member 3 when the unit 1 is not in use. At that time, all the components forming the spring member 5 can be housed in the foot housing member 3 as shown in FIG. Therefore, unit 1 is more portable than conventional units.

In addition, since all of the parts of the spring member 5 are made of plastic and not of iron, the overall weight of the unit 1 is lighter than conventional units,
This makes the unit of the present invention even more portable. Although a specific example has been described, this example is intended to be illustrative of the invention and not limiting of the invention. Various modifications that occur to those skilled in the art are within the scope of the invention described in the claims.

[Brief description of drawings]

FIG. 1 is a view showing a foot accommodating member and a spring member in an exploded state.

FIG. 2 is a diagram showing a method of accommodating a disassembled spring member in a foot accommodating member.

FIG. 3 is a view showing another means for detachably attaching the sole to the bottom surface of the lower plate.

FIG. 4 is a sectional view taken along the line IV-IV in FIG.

FIG. 5 is a view showing a spring constant and weight adjusting means with marks.

[Explanation of symbols]

 1 Sports Exercise Unit 3 Foot Storage Member 5 Spring Member 7 Upper Plate 9 Lower Plate 11 Plastic Strip Plates 13, 15 Pads 17, 19 Strips 21, 23, 25, 27 Recesses 48 Sole 51 First Means 53 Second Means 55, 57 pockets 59, 61 steps 100 marks

Claims (6)

[Claims] 1. A foot accommodating member, and B) a plastic spring member that is disposed on the bottom of the foot accommodating member and is removably attached. The spring member comprises: i) a first member; An arch-shaped upper plate having an end and a second end; ii) an arch-shaped lower plate having a first end, a second end, a bottom surface and a top surface; and iii) a first end and a second end. , And a spring constant and weight adjusting means arranged between the upper plate and the lower plate, iv) the first end of the upper plate and the first end of the lower plate, The spring constant and weight adjusting means is detachably attached to the first end, and the second end of the upper plate and the second end of the lower plate are the second end of the spring constant and weight adjusting means. The spring constant and weight adjusting means is detachably attached to an end, and is composed of a strip member having a first end and a second end. A first snap fitting means provided at a first end of the strip member and a second snap fitting means provided at a second end of the strip member, wherein the first end of the upper plate and the lower plate The first end of the upper plate is received by snap-fitting the first snap-fitting unit, and the second end of the upper plate and the second end of the lower plate are snap-fitting to the second snap-fitting unit. The sports motion unit is configured so that the spring member is automatically disassembled by the action of an abnormal lateral force. 2. The first and second snap fitting means include: a first pad that covers the first end of the strip plate member; a second pad that covers the second end of the strip plate member; A first strip lying on the pad and arranged in the central part of the first pad, and a second strip lying on the second pad and arranged in the central part of the second pad; The plate and the lower plate further include a first upper plate recess provided at the first end of the upper plate, a second upper plate recess provided at the second end of the upper plate, and a lower plate of the lower plate. A first lower plate recess provided at the first end and a second lower plate recess provided at the second end of the lower plate, wherein the first upper plate recess and the first lower plate recess are the first One strip is snap-fitted, and the second upper plate recess and the second lower plate recess are snap-fitted to the second strip. It has been,
The unit according to claim 1. 3. A foot accommodating member, and B) a plastic spring member that is disposed at the bottom of the foot accommodating member and is removably attached to the foot accommodating member. An arch-shaped upper plate having an end and a second end; ii) an arch-shaped lower plate having a first end, a second end, a bottom surface and a top surface; and iii) a first end and a second end. , And a spring constant and weight adjusting means arranged between the upper plate and the lower plate, iv) the first end of the upper plate and the first end of the lower plate, The spring constant and weight adjusting means is detachably attached to the first end, and the second end of the upper plate and the second end of the lower plate are the second end of the spring constant and weight adjusting means. A sole having a first end and a second end detachably attached to the end, and the sole removable from the bottom surface of the lower plate. And a means for releasably attaching the sole, the first means being provided at the first end of the lower plate and releasably holding one end of the sole on the bottom surface of the lower plate. A second means is provided at the second end of the lower plate and releasably holds the other end of the sole on the bottom surface of the lower plate.
Sports exercise unit consisting of things. 4. The first means comprises a first pocket formed at the first end on the bottom surface of the lower plate, and the second means comprises the second pocket on the bottom surface of the lower plate. 4. A second pocket formed at an end, wherein an inner end of these pockets forms a space between the first and second pockets, and the sole is provided in the space. Unit described in. 5. A first adjacent to the first end of the sole.
The unit of claim 4, comprising a step and a second step spaced apart from the first step and adjacent the second end of the sole. 6. A foot accommodating member, and B) a plastic spring member, which is disposed at the bottom of the foot accommodating member and is removably attached, wherein the spring member comprises i) a first member. An arch-shaped upper plate having an end and a second end; ii) an arch-shaped lower plate having a first end, a second end, a bottom surface and a top surface; and iii) a first end and a second end. , And a spring constant and weight adjusting means arranged between the upper plate and the lower plate, iv) the first end of the upper plate and the first end of the lower plate, The spring constant and weight adjusting means is detachably attached to the first end, and the second end of the upper plate and the second end of the lower plate are the second end of the spring constant and weight adjusting means. Detachably attached to the end, v) the spring constant and weight adjusting means are of a single length plastic extending from its first end to its second end. A strip member made of a black material and having a preselected portion, the spring constant and weight adjustment means being adjustable by scraping off the preselected portion of the strip member. Sports exercise unit consisting of things.