US 4,902,007 AGrant
Exercising Machine Operable to Assist or Resist the Exercise
Issue Date:1990-02-20
•7 Claims
•4 Drawing Sheets
Abstract
An exercising machine having improved control permitting either an assist or a resistance of the exercise being performed comprises a first member exercisingly movable by a part of the body against the resistance of a weight or spring and a second member operable by another part of the body with the second member advantageously comprising a pivotable lever, with a linkage selectively engageable between the second member and the weight or spring in two modes in which force applied to the second member in the same direction respectively assists and resists movement of the first member.
Metadata
Assignee
- Fittagym Ltd.
Inventor
- Carlo V. G. Ferrari
Application Information
Application Number:US 2434393
Filing Date:1988-09-12
Priority Date:1985-06-06
Art Unit:332
Classifications
IPC:
A63B 2100A63B 2106A63B 2122
Field of Search:
2727472;123;124;126;134;135;116;137;138;DIG. 599 R;101;102-106;108;110;535;540
Patent Drawings (4 sheets)
Description
In order that the invention may be readily understood certain embodiments thereof will now be described with reference to the accompanying drawings in which:
FIG. 1 is a perspective view of one embodiment of machine,
FIG. 2 is a side view,
FIG. 3 is a scrap side view showing a load bar with weights,
FIG. 3a is an enlarged fragmentary sectional detail, taken at A--A in FIG. 3 for the parts relationship of FIG. 3;
FIG. 4 is a scrap side view showing a spring load bar,
FIG. 4a is an enlarged sectional detail, similar to FIG. 3a, but taken for the parts relationship of FIG. 4 and in the vertical plane B--B of FIG. 4;
FIGS. 5, 6 and 7 are diagrammatic views showing operation of the machine, and
FIG. 8 is a diagrammatic view of a modified embodiment.
FIGS. 1-7 show an exercise machine specifically adapted for a bicep curl exercise. It should be noted however that the same basic chassis can be used for machines for other exercises such as bench press, lateral pulldown, tricep curl, forward leg press, shoulder press and many others.
The machine comprises a basic chassis 1 of generally triangular form supporting a seat 2 and inclined bench 3 having lateral arm support pads 4. Beneath the seat 2 are foot rests 5, and overhanging the bench 3 is an instrument bar 6 on which may be fixed instruments 7 such as a stopwatch, repetition counter and the like.
Depending from the sides of the chassis 1 are pivoted levers 8 mounted on a common axis. To the free end of each lever 8 is connected by a cable 9 a hand grip 10. Pivoting of the levers 8 in the clockwise direction as seen in FIG. 2 causes a pivotable load bar 11 with weights 12 to be raised by means of an interconnecting cable or connecting rod (not shown). The raising or lowering of the bar 11 can be assisted or resisted by pushing forward with the feet on the footplate 13 connected to a second member in the form of a pivotable lever 14 to be described more fully later. The footplate 13 is adjustably secured to the lever 14 by means of a locking shank 15 passing through a selected one of a number of registering apertures 16. By this means the user can adjust the footplate 1 to a comfortable position.
The load bar is shown in more detail in FIG. 3. It consists of a pivotable bar assembly 17 formed with a slot 18 through which passes the bar 19 of a dumbbell. The dumbbell can be moved toward and away from the pivot axis 20 of the bar, being secured in any selected position by a stout staple 21 passing through corresponding apertures (not shown) formed in the bar. Clearly movement of the dumbbell away from the pivot axis 20 will increase the force necessary to raise the bar, and vice versa.
In FIG. 4 the load bar is provided with a tension spring 22 instead of weights. The spring 22 is disposed between a sliding saddle 23 running along the length of the bar and a corresponding reaction carriage 24 running along a fixed rail 25 in the base of the chassis 1. Again, movement of the spring toward and away from the pivotable axis 20 of the bar will vary the effort necessary to raise the bar. The drawing shows at 24A a different position of the spring 22, and at 24B the spring extended by raising of the bar by tension in the lifting cable 26.
As mentioned above, the raising and lowering of the load bar can be assisted or resisted by the footplate/lever assembly 13/14. This is achieved by means of a linkage 27 which is fixed at one end 28 to the load bar and at the other end contains a slot 29 which is adapted to receive lateral studs 30, 31 mounted on each side of the lever 14. It will be seen that with stud 30 engaged in groove 29 (FIG. 5) pushing forward on the footplate will assist raising of the load bar. On the other hand in the alternative configuration shown in FIG. 6, pushing forward on the footplate resists raising of the load bar. Equally, as shown in FIG. 7 where the groove is engaged with neither stud, pushing forward on the footplate has no effect on raising or lowering the bar, but as the bar is raised and lowered the linkage 27 moves freely between the two positions shown.
The user selects the required configuration of the linkage by means of a handle 32 protruding upwardly from the linkage 27. The handle protrudes through a slot 33 formed in the upper surface of a cowl 34 which houses much of the linkage 27 and lever 14.
It will thus be seen that by pushing on the footplate 13, the user can adjust the effective load on the levers 8 to suit his or her requirements for the exercise. Since pushing with the foot in the same direction can assist or resist lifting of the load bar 11 depending on the configuration of the linkage 27, precise control over the load at any stage in the extension is ensured.
In FIG. 8, the lever 14 has mounted thereto an angled bar 35 provided at its upper end with handles 36. In this way, the assisting or resisting effort is performed with the arms rather than the legs.
It will thus be seen that the invention represents a considerable improvement over previous machines of the kind described.
Claims
I claim:
1. An exercise machine comprising: (a) a base support, (b) a seat mounted on the base support and a back rest mounted adjacent thereto and cooperating therewith to support a user in an exercising position, (c) a load member pivotably connected to the base support and having resistance means selectively and continuously movable theralong to bias the load member about its pivot by a selectively variable couple load, (d) a first exercise member movable by a part of the body to cause the load member to pivot against said resistance means and provide resistance exercise, (e) a second exercise member movable by another part of the body, (f) a rigid linkage connectable between the second exercise member and the load member in first and second selectively available configurations, (g) the linkage in said first configuration being so arranged that force applied to said second member assists movement of the load member against the resistance means, (h) the linkage in said second configuration being so arranged that force applied to said second member in the same direction as said assisting force resists movement of the load member against the resistance means, (i) said second exercise member being a pivotable lever so mounted that in said first configuration said linkage is connected to the lever on one side of its pivot axis and in said second configuration said linkage is connected to the lever on the other side of its axis, and (j) manual actuating means including groove-and-stud engageable means for selective engagement of the linkage to the lever on respective opposite sides of the pivot axis of the lever, whereby the linkage may be readily interchanged between said first and second configurations.
2. An exercise machine according to claim 1, in which the second exercise member has a footplate mounted thereon.
3. An exercise machine according to claim 1, in which the first exercise member has handgrip means connected thereto.
4. An exercise machine according to claim 1 in which said linkage is disposed within a housing of the machine and said manual actuating means consists of a handle connected to the linkage and protruding from said housing.
5. An exercise machine according to claim 1, in which said resistance means comprises a weight bearing carriage movable along said load member.
6. An exercise machine according to claim 1, in which said resistance means comprises spring means extending between the load member and a carriage movable along a guide rail parallel to the load member.