DE10350636A1 - Elastic exercise expander has elastic cord surrounded by tube to display degree of extension in use - Google Patents

Abstract

The elastic exercise expander has an elastic i.e. rubber cord or tube (3) with markings (6,7) on its length. There is at least one undeformable outer tube (4) adjacent to the markings to partially cover them. The tube provides an indicator of the extension of the cord using the markings. The cord has a handle (2) at each end.

Description

The The invention relates to an elastic exercise device, in particular an expander, according to the generic term of claim 1, as it is generally for therapy, sports and fitness Use finds.

One Such elastic exercise device with digital display can be found in German Design No. 403 00 543. This points to the surface its elastic element attached between two handles is, if possible on its entire longitudinal extent geometric figures on, z. As ellipses, diamonds, etc., which are when stretching the elastic element in each case in a different geometric Transform figure. From this figure transformation at certain stretching force is this stretching force, which is also written down visibly next to the figures are, recognizable. It can thus be the current state of stress the elastic force elements are read. For exercise equipment whose elastic elements u. a. inelastic ropes, cords, cords or elastic hoses are (so-called tubes), the respective lateral surfaces are too small on it the geometric figures digital or other Details such as symbols easy to read. In addition, there is the Danger that by environmental influences, Manufacturing defects, wear, aging of rubber or elastomer parts the elastic elements are brittle let it be; These expander elements tear or break and considerable Injuries to the body the practitioner can cause.

task The invention is thus to provide an elastic exercise device of the type mentioned above, the well recognizable and safe the current state of tension of the can recognize elastic force elements and also safe in the Application is.

These Task is by an elastic exercise device with the characterizing features of Claim 1 solved. Further advantageous embodiments are characterized in the subclaims.

the according to that is elastic element a rubber cord or a rubber hose, the hereinafter referred to as tube, on the outer jacket as geometric figures at least one mark in the form of Points or cross lines are clearly visible. It is the elastic element of the exercise device at least an inextensible element in the zone or zones with stretch marks assigned and surrounds the lateral surface of the elastic element at least in part, the marks in unstretched condition at least partially overlapping. In this case, the elastic element and the at least one inextensible Element so fixed to each other or each other and the markings applied to the elastic element so that when exercising a predetermined elongation force at least one of the markings of the elastic Element becomes clearly visible or to a mark of the inextensible Elements z. B. whose front edge, a predetermined position taking.

From Advantage is when the holding parts of the elastic elements flat Ring handles are and the markers each in the plane of the flat Handles are visible. This ensures that the markings as well as the associated Dehnkraftangaben during the implementation the exercises, which are preferably carried out with at least partially pre-stretched arms, are well visible and so the predetermined, desired tensile force also accordingly achieved and for a longer one Period monitored and can be maintained.

When Holding parts of the elastic elements of the exercise device can also be transverse to the longitudinal extent the elastic elements arranged discs or rings for use come, on which an elastic element in each case central (slices) or two elastic elements are mounted diagonally opposite (rings). Such a trained elastic exercise device is particularly useful as on the knees of a sitting abduktor abductor exercise device and serves the Pelvic floor exercises. The embodiment with two discs and centrally arranged between these cord or Tube can also be used as a so-called breast lift find by tacking with the whole hand on the disc.

It is also advantageous if the cylindrical member is part of the handles made of wood or plastic, z. B. in the form of respectively the end of the elastic element encompassing blind holes or as an outstanding from the peripheral side of the handle or holding part cylinder socket. In this case, the cylindrical element in a known manner for fastening z. B. the rubber cord serving in the handle, the elastic element comprehensive fastening or shrink tubing or pipe piece, which protrudes partially from the handle. This means that existing on the expanders funds are used for new purposes, here for digital visual Dehnkraftanzeige. It only needs to be additionally attached to the elastic elements, ie to the cord or tube, corresponding markings, which together with the inwardly facing piece of pipe or Schrumpfschlauchende together menwirken.

The But cylindrical element can also be at least partially visible accomplished be and for this z. B. with breakthroughs be provided or at least partially transparent, so that through these breakthroughs or the transparency made the consideration of the markings can be.

In Particularly advantageously, the cylindrical display element in the form of a pipe section and / or inextricable piece of tubing arranged in the middle of the elastic element and center symmetrical be attached immovably at the center. This embodiment is relatively easy to implement, but very effective. It can but also an annular one thermal bonding of the two elements take place, always the marks on both sides of the center of the elastic element are arranged spaced apart in such a way that they are in unloaded state are not visible and with appropriate Dehnbelastung left and / or right on the front side of the display cylinder visibly stand out.

From The advantage is that the markings are applied to the elastic element are that z. B. on one expander side a 2 kg and on the other expander side a 3 kg indication is readable or on both expander sites each successive load displays are readable. The Dehnkraftangabe can also on the respective Cylinder element be applied so that they are also directly in the Field of view of the practitioner is, together with the corresponding protruding marker strips, So read optimally and the stretching force can be maintained.

According to the invention can now as required or arbitrarily with the attachment of the markings, the Display cylinder and the Dehnkraftangaben be combined, depending on the way in which the respective exercises are to be carried out.

A particularly advantageous embodiment can be achieved if the elastic exercise device also designed as a security expander. For this purpose, inside the elastic element, especially the elastic tube / tube a safety rope Arranged with the elastic hose at the same points in attached to the handles or the holding parts while its Length approx. the maximum stretch length corresponds to the hose. The safety rope can be a cord, a rope, a high-strength thread, a micro-wire rope, but also at least a slightly elastic element, such as a thin cord or a radiation-crosslinked Elastomeric cord. So it can be avoided that when tearing z. B. the tube by environmental influences, Manufacturing defects, wear, aging or similar, significant injuries on the body the practitioner can be caused. The cracking or breaking the tube elastically wegschnellenden ends are in their movement stopped by the "core thread" can, depending on the embodiment of the security expander, also serve as a strain limiter to an overstretching to prevent the hose.

following The invention will be described with reference to several embodiments with reference to the drawing closer explained. Show it:

1 a plan view of an elastic exercise device in the form of an expander with two flat handles and an elastic cord;

2 a partial sectional view of the attachment of the cord in the handle of the expander according to 1 in unstretched condition;

3 : a view like in 2 in stretched condition;

4 FIG. 2 is a sectional view of a center-symmetrically arranged display element on the cord, in an unstretched state; FIG.

5 : a view like in 4 in a state of first stretched strength;

6 a plan view of an expander with a tube as an elastic element and safety rope;

7 : A plan view of a device in the version with retaining washers and central Dehnkraftanzeige, and

8th a partial section through an attached in a handle blind hole cord or tube end.

The in 1 illustrated expander 1 has two handles 2 between which an elastic element 3 like cord or hose, is attached. The attachment takes place here in a known manner via a shrink tube 4 , which is introduced together with the cord or tube end in a corresponding bore in the handle body and a transverse pin 5 is secured. On the cord or the tube are cross lines or rings as markings 6 and 7 applied, with the left handle approximately flush with the front side / front edge 9 of the shrink tube 4 the mark 6 at a load of z. B. approximately 2 kg from the Shrink tubing inside is visible. There is a mark on the right handle 7 flush with the front edge 9 of the shrink tube 4 to see that a load z. B. of about 3 kg, while in corresponding spacing inward on the tube marking 6 , which corresponds to a load of 2 kg, is still visible. It can be seen that the Dehnkraftangaben 2 kg and 3 kg, each associated with the tube ends, on the flat side of the handles are available.

Out 2 can be seen as the elastic element (cord / hose) with attached at its end shrink tube 4 in a blind hole 8th of the handle 2 introduced and in this by a pin 5 is secured in a known manner. The marks applied to the elastic element 6 . 7 are located inside the heat shrink tubing, so that these over the front edge 9 not visible.

3 illustrates, as with an elongation force of 3 kg, the inner mark 7 flush with the front edge of the shrink tube 4 while the z. B. a tensile force of 2 kg associated mark 6 corresponding far over the front edge 9 pulled is visible.

Out 4 can be seen as over an elastic element 3 a shrink tube 4 is attached and above this a display element 10 with outside spherical shape, while a pin 5 is passed across these three elements and secures them against mutual displacement. Inside the shrink tube 4 are on the elastic element 3 left the mark 6 for a lower and right of the mark 7 to recognize for a higher Dehnkraftanzeige.

5 shows how the same arrangement made 4 under the influence of a low elastic force the corresponding marking 6 flush from the front 9 of the shrink tube 4 has emerged well visible while the mark for the higher elongation force 7 is still invisible inside the shrink tube remains.

In the embodiment according to 6 , which is constructed in the same basic principle as the one out 1 shows the additional arrangement of a safety rope 11 inside the elastic element 3 (Tube). It can be seen that the safety rope 11 is arranged loosely in the tube interior and that its two ends together with the tube and the shrink tube 4 over the pen 5 attached in the handles. The Dehnkraftangaben, here 1 kg and 2 kg are also applied here on the flat sides of the expander rings.

7 shows an embodiment of the expander with two retaining discs 13 , which additionally have knob-like handles on the outside and between which centric the elastic element 3 is fastened in the same way as in the above-described expanders. Center on the elastic element is a display cylinder 14 arranged, which may be a piece of pipe and with the elastic element / the cord via a transversely passing pin 5 is secured.

Finally shows 8th a partial section through the attachment of the elastic element 3 in a handle 2 , It is in a blind hole 8th The end of an elastic element is inserted and secured by a pin. There are also two markings here 6 . 7 on the mantle of the elastic element 3 arranged so that at a lower force of z. B. 2 kg the corresponding outer marking 6 passes over the front of the blind hole outwards and is clearly visible while the mark 7 can not be seen from the outside for the higher elasticity.

1

expander

2

handles

3

elastic Element (cord / hose)

4

shrinkable tubing

5

pen

6

first Marking (2 kg)

7

second Marking (3 kg)

8th

blind

9

front (Leading edge)

10

Indicator / cylinders

11

safety rope

12

Abductor expander

13

disc

14

Display cylinder / tube piece

15

retaining pins

Claims (14)

Elastic exercise device, in particular expander, with at least one elastic element fastened between two holding parts, which is provided on its lateral surface with at least one symbol as a digital visual Dehnkraftanzeige, characterized in that the elastic element ( 3 ) is a rubber cord or a rubber tube and as symbols on its lateral surface at least one mark ( 6 . 7 ) are applied in the form of a point, transverse line or peripheral ring in a clearly recognizable manner, - that at least one inextensible element ( 4 ) the elastic element ( 3 ) in the zone or zones with markings ( 6 . 7 ) surrounds at least partially outside and the markings ( 6 . 7 ) in the unstretched state, at least partially covered, and that the elastic ( 3 ) and the inextensible elements ( 4 ) are fixed to each other or to each other, that when exercising a certain, predetermined tensile strength at least one of the Markie ments ( 6 . 7 ) of the elastic element ( 3 ) become clearly visible. Elastic exerciser according to claim 1, characterized in that, when the stretching forces are exerted, the markings ( 6 . 7 ) at the visible, in the direction of stretching ends ( 9 ) of the inelastic element ( 4 ) become flush with it. Elastic exercise device according to claim 1, characterized in that the holding parts flat ring handles ( 2 ) and the markings ( 3 ) are each visible in the plane of the flat handles. Elastic exerciser according to claim 1 and 2, characterized in that the holding parts transverse to the longitudinal extent of the elastic elements ( 3 ) arranged discs ( 13 ) or rings are where an elastic element ( 3 ) each central or two elastic elements ( 3 ) are mounted diagonally opposite. Elastic exercise device according to claim 1 to 4, characterized in that the at least one inextensible element is a cylindrical element ( 4 ), which is attached to the handles ( 2 ) or holding parts, such as discs ( 13 ) or rings are each arranged so that it on the elastic element ( 3 ) points inwards. Elastic exercise device according to claim 5, characterized in that the cylindrical element ( 3 ) Part of the wooden or plastic handles ( 2 ) or holding elements ( 13 ) is, for. B. as a respectively the end of the elastic element embracing blind hole ( 8th ) or as an outstanding from the peripheral side of the handle or holding part cylinder neck. Elastic exercise device according to claim 5, characterized in that the cylindrical element ( 3 ) in a known manner for fastening z. B. the rubber cord in the handle ( 12 ) and is a cord or hose end comprehensive fastening or shrink tubing or a piece of pipe that protrudes partially from the handle. Elastic exercise device according to claim 5, characterized in that the cylindrical element ( 4 . 10 ) is at least partially visible, z. B. provided with openings or at least partially transparent and the viewing of the marks allowed. Elastic exercise device according to claim 3, characterized in that the cylindrical display element in the form of a pipe section ( 14 ) or inextricable piece of tubing ( 4 ) in the middle of the elastic element ( 3 ) is arranged and center symmetrically fixed immovably to the center, z. Example, via a diagonally guided pin or by annular thermal bonding with the inextensible hose ( 4 ) and that the markings ( 6 . 7 ) on both sides of the middle of the elastic element ( 3 ) are arranged correspondingly spaced, so that they are not visible in the unloaded state and with appropriate Dehnbelastung left and / or right from the front side ( 9 ) of the display cylinder ( 14 ) emerge visibly. Elastic exerciser according to claim 9, characterized in that the markings ( 6 . 7 ) on the elastic element ( 3 ) are applied so that z. B. on one expander side a 2 kg statement ( 6 ) and on the other expander side a 3 kg indication ( 7 ) or on both expander sides both load displays ( 6 . 7 ) are successively readable. Elastic exercise device according to the preceding claims, characterized in that the respective non-rotatable display cylinder ( 4 . 14 ) assigned or readable on this force directly on the well visible during the exercises lateral surface of the display cylinder ( 4 . 10 . 14 ) or the associated handle ( 2 . 13 ), printed, engraved or similarly applied. Elastic exerciser according to claim 9, characterized in that associated with the respective exit side of the indicator tube ( 4 . 10 . 14 ) are given several weights, while several markers in axial succession and designed to the respective higher tensile forces are available. Elastic exercise device according to the preceding claims, characterized in that inside the elastic element ( 3 ), in particular the elastic hose, a safety rope ( 11 ) which is attached to the elastic tube at the same points in the handles or the holding parts and whose length corresponds approximately to the maximum stretch length of the tube. Elastic exercise device according to claim 11, characterized in that safety rope ( 11 ) may be a cord, a rope, a high-strength thread, a micro-wire rope or an elastic element such as a thin cord or a radiation-crosslinked elastomer cord.