Pull down exercise apparatus

Abstract

Apparatus for performing a pull down exercise comprising: a frame, a seat, an input arm assembly interconnected to a resistance mechanism and a manually graspable mechanism disposed vertically above the user's trunk in a start sitting exercise position, the input arm assembly being pivotably mounted on the frame for back and forth travel along a generally forward to rearward direction and along a generally side to side direction orthogonal to the forward to rearward direction, the input arm assembly being rotatably pivotable around a first linear axis and a second linear axis in the respective directions on exertion by the user of a rearwardly downwardly directed force on the manually graspable mechanism.

Claims

1. Apparatus for performing a pull down exercise by a user having a trunk having a longitudinal axis, and opposing anterior and posterior sides, the user having arms extending from the trunk, the apparatus comprising: a frame, a seat having a seating surface, an input arm assembly interconnected to a resistance device and having a pair of input arms each with a manually graspable mechanism, the input arm assembly being pivotably mounted on the frame and adapted to reside in a start motionless position that disposes each of the manually graspable mechanisms in a start exercise position vertically above the user's trunk when the user is seated on the seating surface in an orientation where the longitudinal axis of the user's trunk is disposed generally upright, each input arm having a dual axis arm configuration that is rotatably pivotable around a first linear axis to exert a first resistance to rotation around the first linear axis starting from the start motionless position through a generally vertical path of travel, and rotatably pivotable around a second linear axis to exert a second resistance to rotation around the second linear axis through a generally horizontal path of travel, wherein the manually graspable mechanism on each input arm includes three different hand grips that are fixedly attached to the input arm and that require no setup or modification, the hand grips collectively comprising: a pair of outermost horizontal grips configured such that a user pulls both down and laterally inwardly toward a midline of the user's trunk when seated on the seating surface with the first linear axis being substantially horizontal to the ground and while rotation around the second linear axis is blocked from moving toward the user midline, a pair of forward grips oriented forward of the user's anterior surface and spaced apart so as to move in a substantially vertical direction when the user pulls down on the forward grips, and a pair of innermost horizontal grips configured such that the second axis allows the innermost grips to travel a divergent path moving both down and away from the user's midline when a user pulls both down and laterally outwardly away from the user's midline; wherein each input arm comprises a leverage arm fixedly attached to a manually movable input arm near the first linear axis, the leverage arm having a distal end interconnected via a cable to the resistance device, the distal end being spaced a first selected orthogonal distance apart from the first linear axis selected to create the first resistance, and the distal end being spaced a second selected orthogonal distance from the second linear axis selected to create the second resistance.

2. The apparatus of claim 1 wherein the seat and the input arm assembly are arranged and adapted to enable the user in a user standing position to manually engage the manually graspable mechanisms with the input arm assembly in the start motionless position and to manually pull the manually graspable mechanisms downwardly under user exerted force to a start sitting exercise position where the user is sitting in a seated position on the seat surface and manually engaging the manually graspable mechanism.

3. The apparatus of claim 1 wherein the first selected orthogonal distance is greater than the second selected orthogonal distance.

4. The apparatus of claim 1 wherein the first selected orthogonal distance is greater than or equal to about 9 inches and the second selected orthogonal distance is greater than or equal to about 3 inches.

5. The apparatus of claim 1 wherein the first linear axis and second linear axis are disposed generally orthogonal relative to each other directing the input arm assembly to travel in generally orthogonal front to rear and side to side directions on pivoting of the input arm assembly around the first and second linear axes.

6. The apparatus of claim 1 wherein the input arm assembly is interconnected to the resistance device via a cable that is interconnected at a proximal end to a point of interconnection of the input arm assembly that is spaced a first selected orthogonal distance apart from the first linear axis selected to create a first selected torque resistance from the resistance device and a second selected orthogonal distance from the second linear axis selected to create a second selected torque resistance from the resistance device wherein a distal end of the cable is interconnected to the resistance device.

7. The apparatus of claim 1 wherein the user has legs extending from the user's trunk, the apparatus further comprising a stabilization pad mounted in a fixed position relative to the seat that is adapted to engage an anterior surface of the user's legs when the user is seated on the seat in an orientation where the longitudinal axis of the user's trunk is disposed generally upright and the anterior side of the user's trunk is facing in the forward direction.

8. The apparatus of claim 1 wherein the input arm is interconnected to a first axle that pivots about the first linear axis, the first axle being fixedly interconnected to a second axle that enables rotation of the input arm about the second linear axis, the first axle and the second axle being rotatable around the first linear axis.

9. The apparatus of claim 8 wherein the first axle is adapted to rotate around the first linear axis and the second axle is non-rotatable around the second linear axis, the first and second axles being pivotably mounted to first and second brackets forming a gimbal assembly.

10. The apparatus of claim 1, wherein the first selected orthogonal distance is greater than or equal to about 9 inches and the second selected orthogonal distance is greater than or equal to about 3 inches.

11. The apparatus of claim 1, wherein the first linear axis and second linear axis are disposed generally orthogonal relative to each other.

12. The apparatus of claim 11 wherein the input arm assembly is interconnected to the resistance device via a cable that is interconnected at a proximal end to a point of interconnection of the input arm assembly that is spaced a first selected orthogonal distance apart from the first linear axis selected to create a first selected torque resistance from the resistance device and a second selected orthogonal distance from the second linear axis selected to create a second selected torque resistance from the resistance mechanism wherein a distal end of the cable is interconnected to the resistance device.

13. A method of performing a pull down exercise comprising: a user being seated on the seat of the exercise apparatus of claim 1 in a disposition where the longitudinal axis of the user's trunk is disposed generally upright and the anterior and posterior sides of the user's trunk are oriented generally in the forward to rearward direction, the user manually engaging the manually graspable mechanisms of the apparatus of claim 1, and the user applying a rearwardly and downwardly directed force on the manually graspable mechanisms against resistance from the resistance device.

14. A method of performing a pull down exercise according to claim 13 including: the user further applying a laterally inwardly directed force on the manually graspable mechanisms against resistance from the resistance device.

15. A method of performing a pull down exercise according to claim 13 including: the user further applying a laterally outwardly directed force on the manually graspable mechanisms against resistance from the resistance device.

16. Apparatus for performing a pull down exercise by a user having a trunk having a longitudinal axis, and opposing anterior and posterior sides, the user having arms extending from the trunk, the apparatus comprising: a frame, a seat having a seating surface, an input arm assembly interconnected to a resistance device and having a pair of input arms each with a manually graspable mechanism, the input arm assembly being pivotably mounted on the frame and adapted to reside in a start motionless position that disposes each of the manually graspable mechanisms in a start exercise position vertically above the user's trunk when the user is seated on the seating surface in an orientation where the longitudinal axis of the user's trunk is disposed generally upright, each input arm having a dual axis arm configuration that is rotatably pivotable around a first linear axis to exert a first resistance to rotation around the first linear axis starting from the start motionless position through a generally vertical path of travel, and rotatably pivotable around a second linear axis to exert a second resistance to rotation around the second linear axis through a generally horizontal path of travel, wherein the manually graspable mechanism on each input arm includes three different hand grips that are fixedly attached to the input arm and that require no setup or modification, the hand grips collectively comprising: a pair of outermost horizontal grips configured such that a user pulls both down and laterally inwardly toward a midline of the user's trunk when seated on the seating surface with the first linear axis being substantially horizontal to the ground and while rotation around the second linear axis is blocked from moving toward the user midline, a pair of forward grips oriented forward of the user's anterior surface and spaced apart so as to move in a substantially vertical direction when the user pulls down on the forward grips, and a pair of innermost horizontal grips configured such that the second axis allows the innermost grips to travel a divergent path moving both down and away from the user's midline when a user pulls both down and laterally outwardly away from the user's midline; wherein each input arm comprising a leverage arm fixedly attached to a manually graspable arm, the leverage arm being interconnected to the resistance device in an arrangement that provides leverage against the first and second resistances on rotation of the input arm assembly around the first and second linear axes.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The above and further advantages of the invention may be better understood by referring to the following description in conjunction with the accompanying drawings in which:

(2) FIG. 1 is a right front perspective view of a pull down exercise apparatus according to the invention.

(3) FIG. 2. is a rear right side perspective view of the FIG. 1 machine.

(4) FIG. 3 is a front view of the FIG. 1 machine.

(5) FIG. 4 is a right side view of the FIG. 1 machine.

(6) FIG. 5A is a schematic front view of the FIG. 1 machine showing a user seated in a sitting exercise position.

(7) FIG. 5B is a schematic view similar to FIG. 5A showing the user's arms and the input arm assembly in a fully rearward and downward exercise position.

(8) FIG. 6A is a schematic side view of the FIG. 5A user in a sitting exercise position.

(9) FIG. 6B is a side schematic view of the FIG. 6A user in a fully rearward and downward pull down exercise position.

(10) FIG. 7 is a front side perspective view of an input arm assembly of the FIG. 1 machine by itself.

(11) FIG. 8 is an enlarged fragmentary view of the gimbal or dual axle and bracket assembly along lines 8-8 of FIG. 7.

(12) FIG. 9 is an enlarged fragmentary view of the gimbal or dual axis and bracket assembly along arrow 9 of FIG. 7.

(13) FIG. 10 is an enlarged exploded fragmentary view of the dual axle and bracket or gimbal assembly by which the input arm assembly of the FIG. 1 apparatus is mounted to the frame.

DETAILED DESCRIPTION

(14) In an exemplary embodiment, as shown in FIG. 1, a pull down machine 10 of the present invention includes a support frame 12 on which a user support structure 14 is mounted. The user support structure 14 includes a seat 16 having a surface S and a stabilization engagement pad 18. The seat 16 is mounted on the frame 12 facing a pair of input arms 30 having handles 30h forwardly facing the user when seated on the seat 16.

(15) The arms 30 are mounted to the frame, arranged, adapted and interconnected to a weight resistance such as a weight stack 42. The arms 30 are adapted and mounted to the support frame 12 for pivoting in an arcuate rotation about a generally horizontal axis AA. The arms 30 are rotatably pivotable about axis AA for arcuate generally forward (FW) to rearward (RW) and up (UW) and down (DW) movement by forcible pulling down (RDF) on the handles 30h.

(16) In the embodiment shown, the handles or manually graspable mechanism(s) 30h, FIGS. 5A, 5B, 6A, 6B, 7 are comprised of a first travel director 30hi, second travel director 30hs and third travel director 30ho. Each of the travel directors 30hi, 30hs, 30ho are fixedly attached to the distal end of arm 30 and each have a unique and different hand grip configuration that is selected to require the user's hands 17, arms 13 and trunk T1 to assume a unique and different posture when the user 5 applies a rearward downward force RDF to tend to travel along a predetermined different and unique lateral direction or path. Travel director 30hi is selectively configured to require the user 5 to assume an arm, hand and trunk posture such that the user's hand 17 is forced or biased to travel laterally inwardly LATI, FIG. 3, when the user pulls down and rearwardly RDF on the travel director 30hi. Travel director 30ho is selectively configured to require the user 5 to assume an arm, hand and trunk posture such that the user's hand 17 is forced or biased to travel laterally outwardly LATO when the user pulls down and rearwardly RDF on the handle travel director 30ho. Travel director 30hs is configured to require the user 5 to assume an arm, hand and trunk posture such that the user's hand 17 is forced or biased to travel laterally generally straight LATS or generally along a parallel plane that defines the lateral midline M of the apparatus 10 when the user pulls down and rearwardly RDF on the travel director 30hs.

(17) For example as shown in FIGS. 5A, 5B when the user is engaged in an exercise cycle with the user's hands engaging and gripping ME travel director 30ho, the user's arms, hands, shoulders and upper trunk are biased toward moving laterally outwardly LATO, FIG. 5 on pulling RDF the handle 30h rearwardly and downwardly RDF. In the process of the user's pulling rearwardly and downwardly RDF beginning from the start exercise position SEP of the hands 17, the user exerts a lateral force LF to overcome the opposing force R1a exerted by the weight stack 42. As described below, the weight stack 42 exerts the force R1a against the laterally outward movement LATO on account of the arrange of the point of interconnection of the distal arm 30x at the selected point 30de which is disposed a preselected orthogonal distance SOD from the axis of rotation Z of the arm 30 assembly 24.

(18) As shown in FIGS. 5A-6B, the apparatus 10 has a start motionless position SMP where the arms 30h are stationarily disposed at a vertical position SEP above the user's trunk T1 when the user 5 is seated SP on the seat surface S in a generally upright position where the longitudinal axis of the user 5 is generally parallel to vertical V. The start motionless position is achieved by the arm 30 being either held or biased under a forwardly and upwardly directed force, typically through cables 48, 49 and weight stack 42, typically against the stop 160u, FIG. 7, such that the arm is maintained in the stationary SMP position when not subject to a force exerted on the arms 30.

(19) At the start of an exercise cycle, the arm assembly 24 is in the start motionless position SMP and the user stands up in a user standing position USP in order to manually reach and engage ME a selected one of the travel directors 30ho, 30hs, 30hi of the handles 30h in the start exercise position SEP. The user 5 typically stands in the user standing position with the user's feet 9 and legs straddling the left and right sides of the seat 16 as shown in FIG. 4. The user 5 next begins to perform an exercise cycle by manually engaging or grabbing ME a selected one of the travel directors 30ho, 30hs, 30hi which are initially disposed in the start exercise position SEP. Next in continuing performance of an exercise cycle the user 5 exerts a generally rearwardly RW and downwardly DW directed force RDF on one or both handles 30 which causes the selected number of weight plates 42w to exert an opposing resistance force R1 against the user's force RDF. Once the user first starts exerting force RDF while in the standing position USP, the user then continues to exert rearwardly and downwardly force RDF and simultaneously squat until the user 5 has lowered the user's trunk T1 downwardly DW to a position where the user 5 is disposed in a sitting position SP on the seat surface S, FIGS. 5A-6B with the handles 30h being disposed in the start sitting exercise position SSEP, FIGS. 5A, 5B, 6A upon the user's assuming the sitting position SP.

(20) Next the user 5 continues to exert downwardly and rearwardly directed force RDF until the arm 30 travels from the start sitting exercise position SSEP rearwardly and downwardly to the fully pulled down position PDP, FIG. 6B.

(21) During the course of the user's pulling RDF on the handle 30h from the start exercise position SEP to the start sitting exercise position SSEP to the pull down position PDP, the arm 30 assembly rotates around axis AA with the cable 48, 49 pulling the weight stack 42 upwardly and exerting a resistance force R1 against the user's muscles which are performing the pulling RDF.

(22) The weight stack 42 is selectively connected to one end of a cable 48 by inserting a pin 42p in one of a plurality of holes in a lifting post 50 that passes vertically through the plates, as is well known in the art. For example, the weight stack 42 is formed by a stack of rectangular, brick-shaped plates 42w. Each plate 42w further has at least one horizontal channel or hole, wherein a pin 42p may be disposed to slidably engage any of a series of horizontal channels which are vertically oriented on the lifting post 50 in a spaced apart manner to match the vertical spacing of the stacked weight plates 42w. The pin 42p thereby engages a portion of the stack of weight plates 42w, such that when vertical force is applied to the lifting post 50, the selected stack of weight plates 42 is moved upwards to create a resistance. Typically, the weight stack 42 apparatus is oriented such that the further down the pin is entered into the lifting post 50, the greater the number of plates 42w are engaged, thereby increasing the resistance of the machine.

(23) As shown the weight stack is interconnected to the arm assembly 24, 30, 30x by a series of pulleys 120 and cables 48, 49 and can be interconnected by other known means such as belts, cables, chains, or tethers, so as to inhibit rotation thereof.

(24) In alternative embodiments, other mechanisms for providing resistance, such as friction fittings, springs, elastic bands, pneumatic or electromagnetic resistance, or an air resistance fan could be employed (either alone or in combination) and still practice the invention. Additionally, free weights could be operably engaged to the transmission assembly to resist the movement.

(25) In addition to being rotatable around horizontal axis AA the arms 30 are rotatable around the U-joint or gimbal-like second axis Z which in the embodiment shown is perpendicular to axis AA although other angular relationships could be used between axis AA and axis Z. The user can therefore pull RDF the arms 30 in both the back RW and forth FW arcuate direction RDA around axis AA as well as in the side-to-side SS or lateral LAT direction around axis Z.

(26) In the embodiments shown, FIGS. 7, 8, the degree of side-to-side SS or lateral LAT travel or pivoting around axis Z of the arms 30 can be limited by stop mechanisms 150i, 150o which respectively limit laterally inward LATI and laterally outward LATO travel. Similarly, the degree of upward UW and forward FW pivoting of arm 30 around axis AA is limited by stop 160 and the degree of downward DW and rearward RW pivoting around axis AA is limited by stop 160d.

(27) The arms 30 are interconnected via leverage arm 30x to the weight stack 42 via cable 49. Leverage arm 30x is fixedly attached at the base 30b of arm 30 near the pivot axis AA to provide ready leverage in pulling on the weight stack elements 42w. Cable 49 is connected to a distal point of connection 30de of the leverage arms 30x.

(28) The point of interconnection 30de is selected to provide a resistance from resistance mechanism 42 to lateral LAT or side to side SS movement as well as resistance to rearward RW and downward DW movement of arm 30. Point of interconnection 30de is disposed an orthogonal distance FOD from axis AA and an orthogonal distance SOD from axis Z which together with a preselected configuration and arrangement of the arm assembly 24 and the cable 49 and other interconnections between point 30de of arm 30x and the weight resistance 42 to create a resistance against lateral LAT or SS movement as well as against rearward RW or downward DW movement of the handle 30 and arm assembly 24 beginning from the start motionless SMP position.

(29) FIG. 10 shows an example of the structure of a dual axis joint or gimbal 204 by which the arms 30, 30x are mounted to the frame 12. The dual axis joint is comprised of a first axle 202 that is mounted via bearings 202b to bracket 30ud for rotation RAA of arm 30 around the first axis A. The first axle 202 is fixedly attached to second axle 200 having ball bearings 200b mounted therein for enabling rotation RZ of arm 30 around axis Z. As shown arms 30, 30x are mounted to axle 200 and 202 via U shaped bracket 301. Thus arms 30, 30x are pivotable or rotatable around both axes AA and Z.

(30) In the embodiment shown a stabilization spring mechanism SB is mounted around an axial spacer 200s within the U-shaped recess of U-shaped bracket 301 in an arrangement that biases arm 30 laterally inwardly LATI to assume the start motionless position SMP when the arms 30 are not subject to an external force such as RDF.

(31) The stabilization pad 18 is fixedly mounted and arranged relative to the seat 16 such that when the user 5 exerts a force RDF on the apparatus 10, the user's torso T1 is prevented from moving in an upward UW direction as a result of engagement of the anterior surface ASL of the user's legs 11 with a downwardly facing user leg engagement surface 18s of the pad 18. The seat 16 and seat surface S are typically selectively adjustable to a selected vertical height or position via vertical height adjuster 100 such that the start exercise position of the anterior surface ASL of the user's legs 11 can be closely positioned in close adjacency or in engagement with the undersurface 18s of the pad 18.