U.S. patent number 3,815,903 [Application Number 05/266,509] was granted by the patent office on 1974-06-11 for weight lifting exercising device.
Invention is credited to Olle Blomqvist.
United States Patent |
3,815,903 |
Blomqvist |
June 11, 1974 |
WEIGHT LIFTING EXERCISING DEVICE
Abstract
A physical exercise equipment, in the form of a pulling
apparatus, having a weight, to which a string is attached, which is
reeved over a number of pulleys, and a hand grip at the free end of
the string. At least one of said pulleys is a displaceable lockable
sheeting pulley, through the displacement of which the length of a
looped portion of the string and accordingly also the length of the
free end portion of the string is adjustable. The height of the
sheeting pulley may be read on a scale.
Inventors: |
Blomqvist; Olle (Stockholm 28,
SW) |
Family
ID: |
27354343 |
Appl.
No.: |
05/266,509 |
Filed: |
June 26, 1972 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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30440 |
Apr 21, 1970 |
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Foreign Application Priority Data
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Mar 16, 1970 [SW] |
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3444/70 |
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Current U.S.
Class: |
482/103 |
Current CPC
Class: |
A63B
21/154 (20130101); A63B 21/156 (20130101); A63B
21/06 (20130101); A63B 21/0628 (20151001) |
Current International
Class: |
A63B
21/06 (20060101); A63B 21/00 (20060101); A63B
21/062 (20060101); A63 () |
Field of
Search: |
;272/79R,80,81,DIG.5 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Pinkham; Richard C.
Assistant Examiner: Browne; William R.
Attorney, Agent or Firm: Cushman, Darby & Cushman
Parent Case Text
This is a continuation of application Ser. No. 30,440, now
abandoned, filed Apr. 21, 1970.
Claims
What I claim is:
1. Physical exercise equipment comprising a weight, a cable means
so associated with said weight as to be loaded thereby when the
equipment is in use, grip means at one free end of the cable means
remote from said weight, a first substantially vertical guide
means, a grip end pulley which is rotatably mounted for sliding
movement on said first guide means to adjust the height of the grip
end of said cable means and over which the grip end portion of said
cable means runs means for locking said grip end pulley to said
first means at any selected position between a first lower level
and a second higher level, a second substantially vertical guide
means extending adjacent to said first guide means and
substantially coextensive therewith, a displaceable and lockable
sheeting pulley which is mounted for substantially upwardly and
downwardly vertical movement on said second guide means past said
grip end pulley to adjust the length of the free end portion of
said cable means at any position of said grip end pulley, and a top
pulley which is rotatably mounted above said higher level and over
which said cable means runs on its way from said sheeting pulley to
said grip end pulley.
2. Physical exercise equipment as recited in claim 1, wherein said
first and second vertical guide means are disposed on a single
vertical member and said top pulley is rotatably mounted at the top
of said vertical member.
3. Physical exercise equipment as claimed in claim 2 further
including indicia formed upon said vertical member whereby the
height of said sheeting pulley and thus the length of the free grip
end portion of said cable means may be determined.
Description
This invention relates to an improvement in pulling apparatus or
similar physical exercise equipment of the kind comprising a load
means, such as a weight, a string attached to said weight, a number
of pulleys over which said string runs, and grip means at the free
end of the string remote from said weight.
Pulling apparatus of this kind are usually so mounted, pairwise or
individually, near a wall to which the apparatus is/are secured,
that the string extends substantially in a vertical plane. The last
pulley or the like ("the height pulley") which is located nearest
to the free end portion of the string and over which the string
runs is usually adjustable with respect to its height position in
order to permit accomodation of the height position of the handle
or grip means, which is provided at said end of the string, to the
tallness of the person or patient who is about to utilize the
apparatus.
As a consequence hereof known apparatus of this kind suffer from
the drawback that the length of said free end portion of the string
is dependent of the height position or level to which the height
pulley is adjusted.
The principal object of the invention is to eliminate this drawback
and to provide a pulling apparatus in which the length of the free
end portion of the string is independent of the momentary height
position of the height pulley. This object is achieved thanks to
the fact that at least one of said pulleys is a displaceable and
lockable sheeting pulley, through the displacement of which the
length of the loop and accordingly also the length of the free end
portion of the string is adjustable. Thanks to this new design the
further advantage is gained, that the length of the free end
portion of the string may be adjusted while maintaining a constant
height position of the height pulley.
Further advantages and features of the apparatus according to the
invention will become apparent from the following particular
description and the accompanying drawing, which illustrates a
preferred embodiment of the invention in side view and partly in
section.
In the drawing 1 designates a floor plate, which is secured to a
floor 2 and to which firstly a profile tube 3 and secondly a pair
of guide tubes 4 are secured. The upper ends of the guide tubes 4
are secured to a fastening bracket which is generaly designated 5
and one end of which is rigidly secured to the profile tube 3 and
the other end of which is screwed on to a wall plate 6 which is in
its turn screwed on to a wall 7 close to which the pulling
apparatus is erected. The fastening bracket 5 comprises a
substantially horizontal base plate 8 having openings 9, 10 and 11
as well as two bearing plates 12 upstanding from the base plate and
in which a pully or roller 13 is rotatably journalled.
The guide tubes 4 constitute guides for a weight packet 15 which
contains weights 16a, 16b of which an arbitrary number may be made
operative, i.e. load the string, and the remainder are passive or
resting. Between the resting weights and the operative ones there
is interposed a shock absorbing cushion 17.
At the top of the profile tube 3 a top roller or pulley 19 is
journalled between a pair of bearing plates 20. The so called
height pulley which is designated 21 is rotatably journalled
between a pair of bearing plates 22 which in their turn are secured
to a base plate 23 which is displaceable in vertical direction
along the profile tube 3 and may be locked thereto by means of a
wing screw or the like 24.
To that side of the profile tube 3 which is turned away from the
height pulley 21 there is secured a flat iron or the like 26 which
constitutes a guide for a sheeting roller or pulley 28. This roller
28 may be displaced in vertical direction along said guide 26 and
may be locked thereto by means of a wing screw or the like 27. The
level or height position to which said height roller has been set
may be read on a scale 29 provided on the profile tube 3. The
sheeting pulley is always loaded by the weights 16b. To the
mutually interconnected weights 16b there is attached a string 30
which runs through the opening 9 in the fastening bracket 5, over
the roller 13, through the opening 10 in the fastening bracket 5,
over the sheeting pulley 28, through the opening 11 in the
fastening bracket 5 and over the top pulley 19 and the height
pulley 21. At the end of the string 30 there is secured a
swivel-hook 31 in which a pull handle 32 is secured in its
turn.
It is evident that the free end portion of the string 30, i.e. that
portion of the string which is located on the opposite side of the
height pulley 21 with respect to the top pulley 21 increases or
decreases respectively, as the height pulley is displaced upwards
and downwards respectively along the profile tube 3. To compensate
for such change in length the sheeting pulley 28 provided in
accordance with the invention is displaced downwards and upwards
respectively along the profile tube 3 and the scale 29, so that the
loop formed of the string 30 by the sheeting pulley is lengthened
and shortened respectively. Through such displacement of the
sheeting pulley 28 and consequent lengthening or shortening of the
loop of the string 30 it is evidently possible to vary the
effective length of the free end portion of the string even at a
constant level or height position of the height pulley 21.
From the above it is apparent that the sheeting pulley 28 according
to the invention constitutes an effective compensating means
through which it is possible to adjust pulling apparatus of the
kind in question more efficiently than hitherto to different
lengths of the persons or patients utilizing the apparatus and to
varying working conditions. Of course the embodiment described
above and illustrated in the drawing is to be regarded merely as a
non-limiting example and may as to its details be modified in
several ways within the scope of the invention. Thus, it is
possible to make even the top pulley 19 adjustable, so that two
sheeting loops which are adjustable with respect to their length
are obtained. It is, at least in some instances, also possible to
utilize such a displaceable top pulley as a sheeting pulley which
then forms a substitute for the sheeting pulley 28.
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