US3831935A

US3831935A - Movable platform exerciser

Info

Publication number: US3831935A
Application number: US00291242A
Authority: US
Inventors: H Hofle
Original assignee: Individual
Current assignee: Individual
Priority date: 1971-09-23
Filing date: 1972-09-22
Publication date: 1974-08-27
Anticipated expiration: 1991-08-27
Also published as: CH559555A5; JPS519962Y2; AT315704B; JPS4841357U; FR2153890A5

Abstract

An exercising device for physical fitness trainings, especially for usage as an at-home exerciser. The exercising device is characterized by two double crank arms attached to a frame and revolving around a horizontal axle. Additionally, the inner arms of the two double crank arms are connected with at least one platform on which a user stands. A handle bar is attached for the user on the outer arm of each double crank arm. When the user stands on the platform and grasps the handle bars, by appropriately shifting his body weight, he can cause the platform to go in a circular motion. This movement is opposed by spring attachments which tend to keep the platform in a horizontal attitude throughout its complete motion. The movements carried out by the user are similar to those of skiing.

Description

[ Aug. 27, 1974 MOVABLE PLATFO EXERCISER [76] Inventor: Hubert Hiii'le, Sandrartstrasse 2,

Munich, Germany 22 Filed: Sept. 22, 1972 21 Appl.No.:291,242

[30] Foreign Application Priority Data July 23, 1971 Germany 7136204 [52] US. Cl 272/57 R, 272/83 R [51] Int. Cl A631) 69/18 [58] Field of Search 272/1 R, 57 R, 57 A, 57 B, 272/58, 72, 79 R, 83 R, 73; 74/25, 49, 99 R,

Cummins 272/83 R X FOREIGN PATENTS OR APPLICATIONS 91,922 3/1959 Netherlands 272/79 R Primary Examiner-Richard C. Pinkham Assistant ExaminerR. T. Stoufier Attorney, Agent, or Firm-Jones, Thomas & Askew [57] ABSTRACT An exercising device for physical fitness trainings, especially for usage as an at-home exerciser. The exercising device is characterized by two double crank arms attached to a frame and revolving around a horizontal axle. Additionally, the inner arms of the two double crank arms are connected with at least one platform on which a user stands. A handle bar is attached for the user on the outer arm of each double crank arm. When the user stands on the platform and grasps the handle bars, by appropriately shifting his body weight, he can cause the platform to go in a circular motion. This movement is opposed by spring at tachrnents which tend to keep the platform in a horizontal attitude throughout its complete motion. The movements carried out by the user are similar to those of skiing.

6 Claims, 5 Drawing Figures PATENIH] ms 2 7 19M Fig.1

U- 15 IF YAYAYAY AYAYAVA A AY MOVABLE PLATFORM EXERCISER According to the invention the exerciser is characterized by two double arms attached to a frame and re volving around a horizontal axle, further by the fact that the inner arms of the two double cranks are connected with at least one platform for the user, and that a handle bar is attached for the user on the outer arm of each double crank.

Such an exerciser achieves a uniform workout of all the muscles, especially the arm and leg muscles. It is especially suitable for summer trainings of skiers, because the movements carried out when using this equipment are similar to those of skiing and especially those muscles are developed, which are required when skiing.

One version of this exerciser has both inner crankhandles connected with a common platform.

Another version is equipped with teo separate platforms, each of which is connected with one of the two double cranks.

In both versions, each platform consists preferably of a board and a mechanical arrangement is provided which tends to maintain each board in a horizontal attitude.

Examples for versions of the invention are illustrated in the drawings. Shown are:

FIG. 1 is a plan view of the first version of the exerciser.

FIG. 2 is the side view of exerciser in FIG. 1.

FIG. 3 is an enlarged section of a part of the exerciser in FIGS. I and 2.

FIG. 4 is a schematic illustration to explain the operation of the exerciser in FIGS. 1 and 2, and

FIG. 5 is the plan view of another version of the exerciser.

The exerciser shown in FIG. 11 consists of a stand 1, formed by a right-angled frame 2 to which four legs 3 are attached. The legs can be folded inwards against the stand and are, when unfolded, secured in place by braces 4. The frame 2 consists of two

longitudinal bars

5 and 6, which are connected by

transverse bars

7 and 8. In the center of the longitudinal bar 5, a bearing 9 is attached, in which a rotatable double crank 10 is mounted. The double crank 10 has opposing crank handles Ill and 12, of which the crank handle 1111 is positioned on the inside, and crank handle 12 on the outside of the longitudinal bar 5. In the same manner a bearing 13 is attached to the center of the longitudinal bar 6, in which a double crank 14 is mounted, which consists of an inner crankhandle l5 and an outer crankhandle 16.

The ends of the two inner crankhandles l1 and 15 are connected by a cross bar 17, and this crossbar 117 is connected with an approximately square platform 18 approximately at its center. At the free end of each of the crankhandles l2 and 16 a

handlebar

19 and 20 is connected, which is of such a length that it is easily held by a person standing on the platform 18. For adjustment to different body heights the handlebars l9 and 20 can be made adjustable or exchangeable.

Parallel to the

longitudinal bars

5 and 6 are two guide rods 21 which are shorter than the

longitudinal bars

5 and 6, and the ends of which are connected by springs 23 with the

transverse bars

7 and 8. The platform 18 has guides in the form of tubing 24 along the underside of its two longitudinal edges. The guides 24 accommodate the guide rods in such a manner that the guide rods can move within the tubing.

Consequently, upon the rotation of the two double cranks l0 and M the platform completes a full circular motion, sliding meanwhile along the guide rods 21, which it takes along upward and downward during which the spring 23 tends to keep the guide rods 21 and consequently the platform 18 also, in a horizontal attitude throughout the complete motion.

The manner of operation of the exerciser is recognizeable in the diagram of FIG. 4: The user stands on the platform 18 and grasps the two handlebars l9 and 20. By shifting the body weight onto the two handlebars I9 and 20, the outer crankhandles l2 and 16 are moved downward, so that the platform 18 rises in a circular motion, meanwhile sliding forward on the guide rods 21. Upon reaching the upper dead center, the body weight is shifted again more onto the platform 18, which thereby moves forward and down, and raises the handlebars. The springs 23 meanwhile keep the guide rods 21 in a horizontal attitude and simultaneously exerts a certain resistance which has to be overcome during the movement out of the middle position. The alternating shift of the body weight to arms and legs, results in a very good workout of all muscles.

In the second version shown in FIG. 5, the stand 1 is essentially the same with the rectangular frame 2 of

longitudinal bars

5 and 6 and

transverse bars

7 and 8, and, attached to the

longitudinal bars

5 and 6, the double cranks l0 and 14 with

inner crankhandles

11 and 15 and

outer crankhandles

12 and 16, and

handle bars

19 and 20 attached thereto. The difference between the version of FIGS. I and 2, is the fact that the platform is replaced by two independent footboards 2S and 26, of which footboard 25 is connected with the inner crankhandle 111 of the double crank 10, and footboard 26 with the inner crankhandle 15 of the double crank M. For additional support of these two platforms there are provided between them independently revolving

support arms

27 and 28, which are located on a central support member 29 of the frame. Each of the two

footboards

25 and 26 is equipped with a parallel guide system of its own, consisting of two guide rods 30 which are connected to each other at their ends by cross bars 31, which are connected by springs 32 with the

transverse bars

7 and 8. The two platforms 2S and 26 are connected with their guide rods 30 by guides in a manner similar to that shown in FIG. 3.

In this version of the exerciser the user places one foot on footboard 25 and the other foot on footboard 26. Upon grasping the two handles, he can move his legs in a manner similar to that used in bicycle riding. The'motion of the arms and legs achieved thereby is similar to that in skiing and especially in climbing.

The exerciser has a compact and flat form permitting convenient storage when the legs 3 are folded against the frame I.

I claim:

ll. Exerciser comprising a frame, two double crankarms rotatably attached around a horizontal axle on said frame, two independent handles, each of said handles being connected to an outercrankarm of one dou ble crankarm, two independent footboards. each of said footboards being connected to an inner crankarm of one double crankarm, and two support arms located between said footboards, each of said support arms being connected with one of said footboards and being capable of rotating independently of the other support arm.

2. An exerciser comprising a frame which supports a platform means capable of movement in both horizontal and vertical directions, handle means for controlling the movement of said platform means, means interconnecting said platform means and said handle means for translating horizontal and vertical motion of said handle means into horizontal and vertical motion of said platform means, and a parallel guide system comprising bar means to which said platform means is mounted in such a manner that said platform means can move in longitudinal directions, and wherein the ends of said bar means are connected by springs with said frame, said bar means and said springs tending to maintain said platform means in a horizontal attitude.

3. The exerciser of claim 2 and wherein said platform means is a one piece platform and the means interconnecting said one piece platform and said handle means is a pair of double crank arms rotatably attached around a horizontal axis.

41. The exerciser of claim 2 and wherein said platform means is a pair of independent footboards.

5. The exerciser of claim 2 and wherein said frame has connected thereto foldable legs.

6. The exerciser of claim 2 and wherein said platform means comprises two footboards and wherein two support means are located between said footboards, each support means being connected to one of the footboards and each support means being capable of rotat-' ing independently from the

Claims

1. Exerciser comprising a frame, two double crankarms rotatably attached around a horizontal axle on said frame, two independent handles, each of said handles being connected to an outer crankarm of one double crankarm, two independent footboards. each of said footboards being connected to an inner crankarm of one double crankarm, and two support arms located between said footboards, each of said support arms being connected with one of said footboards and being capable of rotating independently of the other support arm.

4. The exerciser of claim 2 and wherein said platform means is a pair of independent footboards.

6. The exerciser of claim 2 and wherein said platform means comprises two footboards and wherein two support means are located between said footboards, each support means being connected to one of the footboards and each support means being capable of rotating independently from the other support means.