US20160096064A1 - Treadmill with removable handles and relative assembly method - Google Patents
Treadmill with removable handles and relative assembly method Download PDFInfo
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- US20160096064A1 US20160096064A1 US14/858,620 US201514858620A US2016096064A1 US 20160096064 A1 US20160096064 A1 US 20160096064A1 US 201514858620 A US201514858620 A US 201514858620A US 2016096064 A1 US2016096064 A1 US 2016096064A1
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- Prior art keywords
- handle
- treadmill
- upright
- coupling
- lever
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/02—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
- A63B23/04—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/0057—Means for physically limiting movements of body parts
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2210/00—Space saving
- A63B2210/50—Size reducing arrangements for stowing or transport
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Rehabilitation Tools (AREA)
- Orthopedic Medicine & Surgery (AREA)
Abstract
Described is a treadmill (1) comprising a frame (2) having uprights (3) for supporting a control panel (5) equipped with a user interface; a belt (4) trained around rotatable rollers, defining a treadable surface (4 a); a motor connected to at least one of the rollers for moving the belt (4); at least one handle (7) connected to a corresponding upright (3) and having a grip portion (7 a) which can be accessed by the user, wherein the treadmill (1) comprises a shape coupling between the handle (7) and the upright (3) and a lock/release mechanism (16) for manually coupling and uncoupling the handle (7) with respect to the upright (3).
Description
- This invention relates to a treadmill with removable handles and a relative assembly method.
- The invention is applicable in particular to the fitness sector and for fitness training equipment, which may be located, for example, in a gym or in a home.
- The invention addresses the technical field of exercise machines; in particular, the invention addresses the technical field of treadmills, that is, the exercise machines designed to simulate walking and running, aerobic activities which can be performed at various intensities. The machines allow the user to walk run on the spot.
- The treadmills allow the user to walk or run in gradual and controlled fashion, to perform efficient and safe cardiovascular training. There may be various aims for the training, for example, weight loss or toning of the muscles of the lower limbs. The treadmill can also be applied for exercise for articular and cardiovascular rehabilitation.
- The range of users for whom it is intended is therefore large and diversified. Individuals who practice sport competitively, those who wish to achieve and maintain a good level of fitness and persons in need of rehabilitation to improve their mobility can obtain benefits from the use of treadmills.
- In addition to gyms, there is a wide and varied range of environments in which treadmills can be used, for example in private homes, hotels, spas and all spaces dedicated to training.
- Typically, the prior art treadmills comprise a frame comprising a base and at least one upright.
- The base of the frame constitutes the support for the belt. The belt consists of a belt trained around at least two rotatable drive rollers (that is, pulleys) coupled to the base. A motor, located in a compartment of the base, controls the operation of at least one of the rollers for moving the bell. The belt rotated by the drive rollers defines a walking or running surface (that is, a treadable surface). The treadable surface is substantially parallel to the plane defined by the floor.
- The drive rollers, connected to the driving axis by means of a transmission belt, transfer the motion of the motor to the belt. Moreover, the majority of treadmills are provided with a shock absorbing system which is able to absorb the micro-injuries which running can generate, especially when performed on hard ground whilst wearing unsuitable footwear. The prior art treadmills also comprise mechanisms for tilting the base, generally driven by an actuator, which are configured to vary the slope of the belt, by tilting the walking surface relative to the plane defined by the floor.
- The prior art treadmills usually comprise one or more uprights coupled to the frame and elongate in a substantially vertical direction to support a control panel which can be reached by the user in an upright position. The control panel may have keys which can be reached by the user during use of the exercise machine. Typically, the keys allow the immediate control of the exercise parameters (for example, speed and slope). The control panel usually comprises a display (possibly touch-screen type) which allows the user to display the exercise data in real time. The control panel for the touch-screen display) has a variable number of keys based on the quantity of data and the number of programs held by the specific exercise machine. On the majority of treadmills it is possible to program exercises with aims of distance, time, heart rate and calories, at different speeds or slopes which can be set up by the user both during programming and during training. Moreover, the majority of treadmills comprise a memory with preset exercise programs. Many models offer the possibility of setting up new programs, with a number depending on the capacity of the memory and a software program configured to process data coming from one or more sensors with which the exercise machine is equipped. The adjustment of the speed and slope allows the effort exerted to be modulated, adapting it to the individual capabilities and the progress achieved thanks to the exercising.
- The prior art treadmills are usually equipped with a braking system which slows down the speed of the belt gradually, even in the case of sudden switching off.
- The treadmills generally comprise at least one supporting structure for the upper limbs of the user (that is, handles), designed to help the user maintain balance.
- At the sides of the walking or running surface, the belt usually comprises a pair of side footrests. Typically, before starting the exercise, the user steps onto the belt, placing a foot on each side footrest and, facing towards the control panel, grips a handle with one hand and sets a program on the control panel with the other hand.
- In order to have a break without stopping the treadmill or without operating the controls, the user can rest on the handles and move the feet to the side footrests.
- It may be useful for the user to rest the hands on the handles even during the exercise; for example, unskilled users and users with serious equilibrium problems can exercise more safely by walking with the hands resting on the handles. In treadmills configured for varying the slope of the belt, the walking or running on a slope, which tends to unbalance the user, may require the use of handles as a balancing aid.
- It is sometimes the case, especially with unskilled users, that a feeling of veering to the side is felt at the end of the exercise; in these cases, the role played by the handles may be fundamental for the safety of the user. The shape of the handles is designed for the safety of the user without obstructing movements. Moreover, the design of the handles must balance functional aspects, linked to the correct use of the exercise machine and the safety, with appearance and design aspects.
- Patent document U.S. Pat. No. 6,045,490 shows a treadmill with handles coupled to the uprights of the frame. The coupling is such as to make the handles movable, by rotation, between an extended position, where they can be easily reached by the user, and a withdrawn position in which the space available to the user during use of the exercise machine is greater.
- The prior art treadmills have different features depending on the environment for which they have been designed. More specifically, for home applications in which the space available may be limited, the prior art comprises reclosable (that is, foldable) treadmills, designed to adopt a configuration which reduces as much as possible the overall dimensions (that is, the folded configuration) when the exercise machine is not used. The frame of the reclosable treadmills comprises an opening and/or closing mechanism, which allows the plane of the belt to be moved, typically by rotation, towards the plane in which the directions of extension of the uprights lie.
- Patent document U.S. Pat. No. 8,182,399 shows a reclosable treadmill wherein the handles are pivoted to the frame to rotate in such a way as to adopt an extended position during use, and a withdrawn position wherein, once the treadmill is reclosed, the direction along which they extend is substantially parallel to the plane defined by the treadable surface.
- Patent document US20130237381 shows a reclosable treadmill wherein the handles have an elongate shape in one direction and are coupled rigidly to the control panel. The control panel is coupled to the uprights in such a way as to rotate during the closing of the treadmill. When the treadmill is in the closed position, the treadable surface, the directions in which the uprights are elongate and the directions in which the handles are elongate are contained in substantially parallel planes.
- Other solutions regarding trademills provided with handles are described in patent documents US2007/066448A1, U.S. Pat. No. 6,761,669B1 e U.S. Pat. No. 5,676,624A. However, these treadmills have certain limitations.
- The hinge coupling which allows the rotation of the handles is subject to forces which limit the duration and reliability and, also, do not guarantee the absence of residual clearance. Moreover, the reduction of the overall dimensions by rotating the handle is applicable only to the handles having a shape elongate in a direction.
- The curved handles, which are preferably since they improve the ergonomics of the exercise machine and the safety for the user, are typically coupled rigidly to the frame, through an attaching system (for example, by screws) which requires the intervention of a skilled technician to carry out the maintenance or the replacement of the component.
- The aim of this invention is to provide a treadmill which is particularly simple and easy to assemble and reduces the dimensions during storage or transport.
- A further aim of this invention is to provide a treadmill which is particularly comfortable and safe for the user.
- Another aim of this invention is to provide a treadmill which is aesthetically very pleasing.
- These aims are fully achieved by the treadmill according to this invention as characterised in the appended claims.
- More specifically, the treadmill according to this invention comprises a frame having uprights for supporting a control panel, a belt treadable by the user and handles connected to the uprights to provide the user with a surface on which to rest or grip.
- According to this invention, the handles are connected to the uprights in a removable fashion by rapid lock release elements which can be operated manually, so that coupling or uncoupling of the handles from the uprights can be performed manually, without the aid of any tool, and in a particularly rapid and easy manner.
- The treadmill is configured so that it can rest on a horizontal supporting surface, for example a floor. The uprights are inclined respect to this horizontal plane, for example they are vertical or substantially vertically (but they might also have different inclinations); in any case, the handles are elongate along respective longitudinal directions.
- According to one aspect of this description, the treadmill is foldable, that is, it comprises parts movably connected to each other (for example by hinges) for being moved between an open position, wherein the treadmill is designed to perform its fitness exercise functions, and a closed position, folded, wherein the treadmill occupies a particularly reduced size, so as to be packed, stored or simply placed in an area of a home or of a gym. In light of this, preferably, the uprights rotate relative to a portion of the frame designed to support the belt.
- However, it should be noted that this invention not be considered limited to foldable treadmills.
- Preferably, the handles have a U-shaped grip portion. This favours the safety and ease of use by the user.
- According to this description, the treadmill comprises a shape coupling between handle and upright.
- Moreover, the treadmill comprises a lock/release mechanism movable between (at least) two configurations, one for locking, wherein the handle is fixed stably to the respective upright, and one for releasing, wherein the handle may be manually removed from the upright.
- As regards the shape coupling between the upright and the handle, the following should be noted.
- Preferably, the upright has a shaped hollow seat to house a corresponding projecting portion of the handle. This is the solution according to the embodiment illustrated; however, it should also be noted that, in a variant embodiment not illustrated, the male and female role is exchanged between handle and upright, in the shape coupling (this circumstance also applies in consideration of the further features described below regarding the shape coupling).
- In an embodiment, this shape coupling defines a interlocking. In one embodiment, the shape coupling is extended along a straight portion of the upright; the shape coupling occupies an area of the upright and a corresponding area of the handle elongated along a longitudinal axis (the axis in which the upright is oriented).
- The shape coupling preferably comprises a taper coupling by interference, made, for example, by a wedge which can be inserted in a seat.
- Thus, the taper coupling defines a transversal axis of moving towards (that is, insertion) and away (that is, extraction) of the wedge from the respective seat, that is, of the handle from the upright.
- This transversal direction is substantially parallel to the sliding direction of the belt of the treadmill, when it is parallel to the horizontal plane for supporting the treadmill.
- In the example illustrated, the handle has a wedge which can be inserted in a seat defined by the upright. Preferably, the wedge has tapered lateral faces; preferably, the tapered lateral faces of the wedge define a plurality of protrusions alternated with grooves, elongated in the transversal direction of the wedge towards and away from the respective seat.
- The purpose of the tapered coupling is to eliminate the clearances of the handle relative to the upright in a direction perpendicular to the longitudinal direction of the upright and relative to the transversal direction of inserting and removing.
- Preferably, the shape coupling comprises a slot-in coupling between a tooth and a corresponding slot.
- In the example illustrated, the tooth is integral with the handle and defined by the upright.
- The purpose of the slot-in coupling, by inserting teeth in the corresponding slot, is to generate a robust and safe constraint against accidental movement of the handle along the transversal direction, that is, in the direction of extraction from the upright.
- Preferably, the slot constitutes a hole oriented along the longitudinal axis; the tooth protrudes downwards from a ledge defined by the handle and, when the handle is coupled to the upright, protrudes longitudinally downwards and engages the slot.
- Preferably, the shape coupling comprises (a guide defining) a contact surface defining a constraint to a longitudinal movement of the handle relative to the upright.
- In the example illustrated, the contact surface (of the guide) is integral with the upright and acting in conjunction with a corresponding surface defined by the handle.
- Preferably, the contact surface faces downwards, that is, towards the supporting surface of the treadmill; preferably, the contact surface is inclined relative to the supporting surface of the treadmill about an axis perpendicular to the longitudinal direction (along which the upright is elongate) and to the transversal direction (for inserting and removing the handle of the upright).
- The purpose of the contact surface is to eliminate the clearances of the handle relative to the upright in the longitudinal direction in which the upright extends.
- Also, preferably, the upright comprises a reference profile, comprising at least one rectilinear portion defining a first axis of rotation about which the handle is rotatable to produce the shape coupling.
- Preferably, the rectilinear portion is formed by the upright at an upper end of the shape coupling, distal from a treadmill supporting surface.
- Preferably, the rectilinear portion is oriented along an axis perpendicular to the longitudinal direction (along which the upright is elongate) and to the transversal direction (for inserting and removing the handle of the upright). This rectilinear portion defines a contact zone for a corresponding portion of the handle, shaped, for example, in the form of a step.
- The purpose of this rectilinear portion is to define with precision and uniquely an initial position wherein the handle must be located relative to the upright, for then coupling the handle to the upright.
- In effect, the initial position is a position wherein a predetermined contact surface of the handle (at an upper end of the upright) is in contact with the rectilinear portion of the upright, and wherein the opposite end of the handle is offset from the upright; so the handle is located in a position rotated relative to a position for coupling to the upright, rotated about the axis defined by the rectilinear portion of the upright.
- This facilitates and guides the movement of handle relative to the upright in the locking direction, favouring the correct execution of the shape coupling.
- As regards the lock/release mechanism, attention is drawn to the following.
- Preferably, the lock/release mechanism is configured to adopt two stable equilibrium positions and to switch from one to the other by means of snap-in connection.
- Preferably, the lock/release mechanism comprises a hook connected to the handle and a pin connected to the frame.
- Preferably, the hook is connected to a movable lever, accessible to the user. Preferably, the lever is pivoted on the handle and rotates about a second axis of rotation to move the hook towards or away from the pin.
- Preferably, the lock and release mechanism comprises a first elastic element operating in conjunction with the lever and the hook to keep them in a predetermined position relative to one another in the absence of external forces.
- Preferably, the lock/release mechanism also comprises a second elastic element configured to oppose the rotation of the lever in a locking direction, until reaching a predetermined angular position of the lever, beyond which the elastic element promotes the rotation of the lever in the releasing direction.
- Moreover, preferably, the second elastic element is configured to define at least one angular position of stable equilibrium for the lever.
- Moreover, preferably, the second elastic element is configured to oppose the rotation of the lever in a locking direction until a predetermined angular position of the lever has been reached, beyond which the elastic element promotes the rotation of the lever in the releasing direction.
- Preferably, the pin of the lock/release mechanism is connected to the upright in a lower area of the shape coupling, proximal to a supporting surface of the treadmill; this increases the robustness and the safety of the handle, since the force applied by the user on the handle directed downwards does not bear directly on the lock release mechanism but only on the contact surface.
- This invention also provides a method for assembling a treadmill, comprising a connection of at least one handle to a corresponding upright of a frame of the treadmill.
- More specifically, this connection of the handle (that is, of the handles, because preferably there are two or more) to the upright is removable. According to this invention, this connection of the handle to the upright comprises the following steps:
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- coupling of the handle to the upright by means of a shape coupling between the handle and the upright;
- activation of a lock and release mechanism for fixing the handle to the upright in a stable and removable fashion.
- More specifically, the fastening comprises a step for the mutual preparatory positioning of the handle relative to the upright.
- In light of this, the method preferably comprises the following steps, prior to the activation of the lock mechanism:
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- positioning one end of the handle on a reference profile made on the top of a shape coupling portion formed by the upright;
- rotating the handle about a first axis of rotation defined by the reference profile for producing a shape coupling.
- According to one aspect of this description, the treadmill is of the foldable or re-foldable type and the assembly method comprises a step of rotating the upright relative to a belt, to bring the treadmill to an open working position, from a closed position folded.
- Preferably, in the positioning step, it is an upper end of the handle, distal from the supporting surface of the treadmill, which rests on the reference profile of the upright.
- Moreover, preferably, the rotation of the handle is carried out about an axis perpendicular to the longitudinal direction of extension of the upright and to a direction of sliding of the belt of the treadmill, when the belt is positioned horizontally, parallel to the supporting surface of the treadmill. Preferably, this rotation also comprises, in particular in a relative final part, a pushing of the handle against the upright along a transversal direction, parallel to the sliding direction of the belt of the treadmill, when the belt is positioned horizontally, parallel to the supporting surface of the treadmill; this is to make a coupling with interference between a portion of the handle and a corresponding portion of the upright.
- According to another aspect of the invention, it should be noted that this description also concerns an exercise machine generally speaking having a frame equipped with uprights and handles designed to be fixed to the uprights, wherein the handles are fastened in such a way as to be removable manually from the uprights, according to one or more of the features described in this invention.
- Moreover, the invention also relates to a handle, having a grip portion (designed to be gripped by the user) and a portion for coupling to the upright of a frame of an exercise machine (in particular a treadmill).
- The coupling portion of the handle is configured for defining a shape coupling according to one or more of the features described in this invention, in conjunction with a corresponding coupling portion defined by the upright.
- Preferably, the coupling portion of the handle comprises one or more of the following features (for a detail of which reference should be made to the rest of this description), in short; a wedge which can be inserted in a seat of the handle by interference; a tooth of the handle which can be inserted in a slot of the upright (and orientated longitudinally); a contact surface designed to interact by interference with a corresponding surface of the upright, to form a constraint to a longitudinal movement of the handle coupled to the upright; a movable hook for coupling to a the pin of the handle.
- For this reason, this invention allows a handle to be fitted to and removed from a treadmill (and in more general terms, to and from an upright of an exercise machine) quickly and easily, guaranteeing at the same time the robustness of the handle fitted.
- This applies for all types of handles, but in particular for U-shaped handles which are particularly ergonomic and safe.
- This solution has various advantages.
- Firstly, the solution according to this invention simplifies and speeds up the assembly operation of the handle, even allowing an unskilled person to quickly fit the handle; this is particularly useful for exercise machines intended for use at home; moreover, this facilitates a replacement of handles over time (because they are worn or for reasons of appearance). Moreover, the solution according to this invention is particularly attractive in appearance, since screws or other fastening means cannot be seen from the outside, except for the lock release mechanism; in effect, the shape coupling, when the handle is fixed to the upright, is completely enclosed in a space formed inside the upright and the handle.
- The solution according to this invention is also particularly reliable and safe, because the coupling between handle and upright allows vibrations and clearances which might disturb the person during use of handle to be eliminated.
- This and other features of the invention will become more apparent from the following detailed description of a preferred, non-limiting example embodiment of it, with reference to the accompanying drawings, in which:
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FIG. 1 is a perspective view of one particular embodiment of the treadmill according to this invention; -
FIG. 2 is a perspective view of a detail of the treadmill according to this invention in which a handle is separated from the frame; -
FIGS. 3 and 4 show two different perspective views of the handle of the treadmill ofFIG. 1 ; -
FIG. 5 shows a perspective view of the handle ofFIG. 3 wherein the lock/release mechanism is shown in an exploded view; -
FIG. 6 shows a side view in cross section of the handle ofFIG. 3 ; -
FIG. 7 shows a side view in cross section of the handle ofFIG. 3 attached to the frame of the treadmill ofFIG. 1 ; -
FIG. 8 shows a detail of the lock/release mechanism of the treadmill ofFIG. 1 , hooked to the frame; -
FIGS. 9 and 10 show the lock/release mechanism according to this description, in an exploded view and a perspective view, respectively; -
FIG. 11 shows the lock/release mechanism ofFIG. 9 in a first configuration; -
FIG. 12 shows the lock/release mechanism ofFIG. 9 in a second configuration; -
FIG. 13 shows the lock/release mechanism ofFIG. 9 in a third configuration; -
FIG. 14 shows the lock/release mechanism ofFIG. 9 in a fourth configuration; -
FIG. 15 shows the lock/release mechanism ofFIG. 9 in a fifth configuration; - With reference to the accompanying drawings, the
numeral 1 denotes a treadmill, that is to say, an exercise machine designed to simulate walking and running, which allows the user to walk/run on the spot. - A
treadmill 1 comprises aframe 2 having at least oneupright 3; preferably, theframe 2 comprises twouprights 3. - The
treadmill 1 comprises abelt 4 trained around at least two rotatable rollers (not shown in the drawings, of per se known type), which defines atreadable surface 4 a, that is to say, a walking or running surface. Preferably, thetreadable surface 4 a is parallel to a supporting surface of thetreadmill 1. - Preferably (but not necessarily), the
treadmill 1 comprises a motor (not illustrated in the drawings, of per se known type), connected to at least one of the rollers and to move thebelt 4. - In one embodiment, the
treadmill 1 comprises an actuator (not illustrated in the drawings, of per se known type) associated with the frame to angle thetreadable surface 4 a with respect to the supporting surface of thetreadmill 1. - Preferably (but not necessarily), the
treadmill 1 comprises acontrol panel 5. Thecontrol panel 5 is coupled withframe 2; preferably, thecontrol panel 5 is supported by theuprights 3 at a predetermined height from the supporting surface of thetreadmill 1. Preferably, thecontrol panel 5 is provided with a user interface. Preferably, thecontrol panel 5 comprises one or more control means, to allow the user to control parameters relative to the operation of thetreadmill 1. Preferably, thecontrol panel 5 comprises adisplay 6 for displaying, by the user, parameters of thetreadmill 1 and of the workout. Preferably, thedisplay 6 is of the touchscreen type. - The
treadmill 1 has at least one handle 7 (preferably at least two handles 7), designed as an aid for the balance of the user. The handle 7 (or, each handle 7) has agrip portion 7 a which can be grasped by the user. In an embodiment, thegrip portion 7 a is U-shaped; this guarantees a particularly comfortable and firm grip. In use, each handle is stably connected to arespective upright 3. - The handles are removably connected to the
respective uprights 3, so that they can be easily attached and detached by the user or by another person. - The
handle 7 also has acoupling portion 7 b, configured for allowing a coupling of thehandle 7 to theupright 2. - Preferably, the
coupling portion 7 b can be coupled to a corresponding coupling portion of theupright 3, to define the shape coupling. - Preferably, the upright 3 (that is, the coupling portion of the upright 3) comprises a shaped
hollow seat 8, which constitutes a female portion in the shape coupling with the handle 7 (alternatively, the role of male and female in the shape coupling can be reversed, between coupling portion of thehandle 7 and of the upright 3). - In the embodiment illustrated, the shaped
hollow seat 8 is made in theupright 3; the shapedhollow seat 8 is elongate in a longitudinal direction (along which theupright 3 is elongate). - In use, when the
treadmill 1 is resting on the ground, the longitudinal direction is vertical or substantially vertically (that is, perpendicular to the supporting surface of the treadmill). - The
coupling portion 7 b of thehandle 7 is also preferably elongate in a direction; when thehandle 7 is coupled with thecorresponding upright 3, the direction of extension of thecoupling portion 7 b of thehandle 7 is parallel to the direction in which the shapedhollow seat 8 is also elongate. In an exemplary embodiment, thegrip portion 7 a of the handle has at least a segment positioned substantially cantilevered with respect to thecoupling portion 7 b. In particular, in an exemplary embodiment, thegrip portion 7 a of the handle has a stretch elongated (extending) along the direction of movement of the treadmill (or a direction substantially parallel to the ground, i.e. to a bearing plane of the treadmill), while thecoupling portion 7 b is disposed in a longitudinal direction, substantially perpendicular to said stretch of the grip portion 7 e. - Preferably, the
coupling portion 7 b has an elongated shape (elongated in longitudinal direction) and has a first and a second end; for example, thecoupling portion 7 b is straight and shaped as a (rectilinear) segment. - In an exemplary embodiment, the gripping
portion 7 a of the handle has a first and a second end facing in a same direction. For example, such agripping portion 7 a is shaped as a “U” or “V”. - Preferably, said first and second end of the
gripping portion 7 a of the handle are connected (joined) to said first and second ends of thecoupling portion 7 b, to form a ring (or triangle or another shape having a closed perimeter); this ring preferably has a straight portion (side), formed by thecoupling portion 7 b. - Preferably, the
coupling portion 7 b of thehandle 7 connects two ends of thegrip portion 7 a (especially if thegrip portion 7 a is U-shaped). Preferably, the shape coupling comprises a slot-incoupling 9, to prevent the movement of thehandle 7 away from theupright 3, in a direction parallel to the supporting surface of thetreadmill 1. - In an example embodiment, the
upright 3 comprises aslot 9 a; theslot 9 a is preferably formed in the shapedhollow seat 8; more specifically, it is made on a protruding portion of the shapedhollow seat 8. Moreover, thehandle 7 comprises atooth 9 b which can be inserted in theslot 9 a for making the slot-incoupling 9. - Preferably, the slot-in
coupling 9 is located in the upper part of the shape coupling, that is, in the part of the upright 3 (and of thehandle 7 coupled thereto) distal from the supporting surface of thetreadmill 1. - Moreover, preferably, the upright (that is, the shaped
hollow seal 8 of the upright) comprises aguide 10. The handle 7 (that is, thecoupling portion 7 b of the handle 7) has atrapezoidal element 11. Theguide 10 is configured to guide a movement of thetrapezoidal element 11. Preferably, thecoupling portion 7 b of thehandle 7 comprises twotrapezoidal elements 11. - The contact surface between the
guide 10 of theupright 3 and the trapezoidal element 11 (or the trapezoidal elements 11) of thehandle 7 forms acontact surface 12. Preferably, thiscontact surface 12 forms part of the shape coupling, to prevent a movement of thehandle 7 away from the supporting surface of thetreadmill 1, in the direction perpendicular to the supporting surface. Preferably, the coupling between theguide 10 and thetrapezoidal element 11, defining thecontact surface 12, is at a lower height than the slot-incoupling 9 that is, it is relatively closer to a supporting surface of thetreadmill 1, when thehandle 7 is connected to theupright 3. - It should be noted that the couplings comprising the
pin 9 b and theslot 9 a, on the one hand, and thetrapezoidal elements 11 and theguide 10, on the other hand, have the purpose of preventing the movement of the handle in a direction perpendicular to the supporting surface of the treadmill, in both directions; more specifically, towards and away from the supporting surface of the treadmill, respectively. - Preferably, the shape coupling comprises (also) a
taper coupling 13, to prevent a movement of thehandle 7 away from theupright 3 along a direction parallel to the supporting surface of the treadmill 1 (preferably, the direction is perpendicular or transversal to the movement direction of thebelt 4 of the treadmill 1). - In this context, preferably, the
coupling portion 7 b of thehandle 7 defines awedge 14. The shapedhollow seat 8 of theupright 3 has a portion shaped to match thewedge 14 of the handle, to define thetaper coupling 13. - Preferably, the
wedge 14 has a cross section with a variable width, that is, thewedge 14 is tapered, for coupling with interference with the shapedhollow seat 8 of theupright 3. Preferably, thewedge 14 has a trapezoidal cross section. - Preferably, the
wedge 14 has grooved lateral faces 14 a, to improve the stability of thetaper coupling 13. More specifically, the lateral faces 14 a of the wedge have a plurality of grooves alternated with corresponding protrusions, oriented in the direction of insertion and removal of thewedge 14 from the corresponding coupling portion of the shapedhollow seat 8 of theupright 3. In this way, the interference of the coupling is concentrated in the protrusions. This guarantees a particularly stable coupling, avoiding the risk of damaging the shapedhollow seat 8. - Preferably, the
taper coupling 13 is at a lower height (that is, proximal to the supporting surface of the treadmill 1) relative to the contact surface 12 (that is, relative to theguide 10 of the upright 3). - Preferably, the shaped
hollow seat 8 comprises, at one end distal from the supporting surface of thetreadmill 1, areference profile 15 which is configured for facilitating the user during connection of thehandle 7 to the upright 3 (of the frame 2) of thetreadmill 1. Preferably, thereference profile 15 comprises a rectilinear portion defining a first axis of rotation A, located in a plane parallel to the supporting surface of thetreadmill 1. - In order to fasten the
handle 7 to the upright 3 (thus providing the shape coupling), the user positions a first end of thehandle 7 in contact with thereference profile 15, and rotates thehandle 7 about the first axis A in a first direction (of moving thehandle 7 towards the upright 3); in this way, thehandle 7 rotates relative to the upright pivoting on thereference profile 15. - The rotation of the
handle 7 relative to theupright 3 brings thecoupling portion 7 b of thehandle 7 to be inserted into the shapedhollow seat 8 of theupright 3, so that it forms the shape coupling. - More specifically, the insertion of the
coupling portion 7 b of thehandle 7 into the shapedhollow seat 8 of theupright 3, through the rotation, performs the following steps, in succession: -
- the
tooth 9 b (of the handle 7) couples in theslot 9 a (of the upright 3), forming the slot-incoupling 9; - the trapezoidal elements 11 (of the handle 7) are in contact with the guide 10 (of the upright 3) to form the
contact surface 12; - the wedge 14 (of the handle 7) inserted in the shaped hollow seat 8 (of the upright 3), to form the
taper coupling 13.
- the
- It should be noted that the shape coupling thus, preferably, comprises a plurality of complementary elements belonging to the
coupling portion 7 b of thehandle 7 and to the shapedhollow seat 8. It should also be noted that this particular embodiment allows thehandle 7, thanks to the shape coupling and the position of the elements of which it is composed, to withstand without moving a stress applied in a substantially vertical direction, in the direction of approach to thebelt 4. - The
treadmill 1 also comprises a lock/release mechanism 16 removable manually. The lock/release mechanism 16 allows the user to fix thehandle 7 to the upright 3 (of the frame 2), to prevent an accidental disconnecting of thehandle 7 from theupright 3. More specifically, the purpose of the lock/release 16 mechanism is to prevent a force applied in the direction parallel to the upright (in the direction away from the supporting surface of the treadmill 1) from causing an accidental rotation of thehandle 7 about the first axis of rotation A, in a (second) direction (opposite the first direction), causing the uncoupling of thecoupling portion 7 b from the shapedhollow seat 8. - Preferably, the lock/
release mechanism 16 is connected to a second end of thehandle 7, proximal to the supporting surface of thetreadmill 1, when thehandle 7 is coupled to theupright 3. - In an embodiment, the lock/
release mechanism 16 comprises a connectingplate 17, to connect the lock/release mechanism 16 to thehandle 7. Moreover, the lock/release 16 mechanism comprises alever 18 coupled to the connectingplate 17. Thelever 18 is coupled to theplate 17 so as to rotate about a second axis of rotation B; the second axis of rotation B is oriented in such a way that, when thehandle 7 is coupled to theupright 3, the second axis of rotation B is parallel to the supporting surface of thetreadmill 1 and perpendicular to the movement direction of thebelt 4. - Preferably, the lock/
release mechanism 16 comprises ahook 19 having a first and a second end. The first end of thehook 19 is coupled to thelever 18 to define a rotation constraint. The hook is rotatably coupled to thelever 18 so that it rotates about a third axis of rotation C, parallel (substantially) to the second axis of rotation B. The second end of thehook 19 is configured for coupling with apin 20 of theupright 3, positioned in the shapedhollow seat 8. Preferably, the second end of thehook 19 forms a slot. Preferably, thepin 20 has a shaped end, defining a portion inclined towards the direction of movement of thehook 19, so as to form an undercut for locking thehook 19, when thehook 19 is connected to thepin 20. - The
lock release mechanism 16 also comprises a first elastic element 21 (for balancing). The firstelastic element 21 is interposed between thelever 18 and thehook 19. The firstelastic element 21 is preferably configured to define a predetermined reciprocal position relative of thehook 19 with respect to thelever 18, in the absence of external forces. Preferably, the firstelastic element 21 is a helical spring. - Preferably, the lock/
release mechanism 16 also comprises a secondelastic element 22; preferably, the secondelastic element 22 is connected to thehandle 7. For example, the secondelastic element 22 is a leaf spring. - The second
elastic element 22 is configured to interact with a surface of thelever 18 defining acam profile 18 a. Thelever 18 can rotate in a first direction (that is, a release direction) and in a second direction (that is, a lock direction). - During the rotation in the release direction, the second
elastic element 22 does not interact with thelever 18 until reaching a first predetermined angular position (illustrated inFIG. 12 ), wherein thecam profile 18 a enters into contact with the secondelastic element 22. - The second
elastic element 22 generates a force which opposes the rotation of thelever 18 in the release direction, until reaching a predetermined angular position of the lever 18 (illustrated inFIG. 13 ). A further rotation of the lever 18 (facilitated by the second elastic element 22), beyond that angular position, allows thelever 18 to reach a second position of its stable equilibrium (FIG. 14 ). - To uncouple the
hook 19 from thepin 20, the user must therefore overcome the resistance of the secondelastic element 22, rotating further thelever 18 in the release direction. The rotation of thelever 18 causes the movement, by roto-translation, of the second end of thehook 19 towards theupright 3. It should be noted that the roto-translation occurs thanks to the firstelastic element 21, which allows the relative position between thehook 19 and thelever 18 to be maintained, allowing the second end of thehook 19 to move in the direction away from the supporting surface of thetreadmill 1, and hence uncouple thehook 19 from thepin 20. It should be noted that, preferably, a further rotation of thelever 18 in the release direction, relative to the second stable equilibrium position, causes the interaction between thecam profile 18 a and the second elastic element 22 (this situation is illustrated inFIG. 15 ); the secondelastic element 22 applies a force which tends to bring thelever 18 to the stable equilibrium position, in the absence of external forces. - Vice versa, during the rotation in the lock direction, starting from the stable equilibrium position, the second
elastic element 22 interacts with thelever 18 obstructing the rotation, until reaching a predetermined angular position, beyond which the secondelastic element 22 interacts with the profile of thecam surface 18 a, favouring the rotation in the lock direction.
Claims (20)
1. A treadmill comprising:
a frame equipped with uprights;
a belt looped on rotary rollers, forming a treadable surface;
at least one handle connected to a corresponding upright and comprising a grip portion accessible to the user;
a shape coupling between the handle and the upright and a lock and release mechanism for manually coupling and uncoupling the handle relative to the upright.
2. The treadmill according to claim 1 , wherein said shape coupling comprises a taper coupling with interference fit.
3. The treadmill according to claim 1 , wherein said shape coupling comprises a slot-in coupling between a tooth and a corresponding slot.
4. The treadmill according to claim 1 , wherein the shape coupling comprises a guide forming a contact surface for the handle.
5. The treadmill according to claim 4 , wherein said contact surface is facing towards a treadmill supporting surface and is angled relative to said surface about an axis perpendicular to a line along which the upright extends and to a line of insertion and removal of the handle in/from the upright.
6. The treadmill according to claim 1 , wherein the shape coupling comprises a reference profile, comprising at least one straight portion defining a first axis of rotation about which the handle is rotatable to produce the shape coupling.
7. The treadmill according to claim 6 , wherein said straight portion is formed by the upright at an upper end of the shape coupling, distal from a treadmill supporting surface.
8. The treadmill according to claim 1 , wherein the lock and release mechanism comprises a hook connected to the handle and a pin connected to the frame.
9. The treadmill according to claim 8 , wherein said hook is connected to a movable lever, which can be operated by the user, pivoting at the handle and rotatable about a second axis of rotation for moving said hook towards or away from the pin.
10. The treadmill according to claim 9 , wherein the lock and release mechanism comprises a first elastic element operating in conjunction with the lever and the hook to keep them in a predetermined position relative to one another in the absence of external forces.
11. The treadmill according to claim 10 , wherein the lock and release mechanism comprises a second elastic element designed to:
oppose the rotation of the lever in a releasing direction until a predetermined angular position of the lever has been reached, beyond which said second elastic element promotes the rotation of the lever in the releasing direction;
define at least one angular position of stable equilibrium for said lever;
oppose the rotation of the lever in a locking direction until a predetermined angular position of the lever has been reached, beyond which said second elastic element promotes the rotation of the lever in the releasing direction.
12. The treadmill according to claim 8 , wherein the pin of the lock and release mechanism is connected to the upright in a lower zone of the shape coupling, proximal to a treadmill supporting surface.
13. The treadmill according to claim 1 , wherein the upright forms a shaped hollow seat for housing a corresponding coupling portion of the handle by means of said shape coupling.
14. The treadmill (1) according to claim 13 , wherein the upright is oriented along a longitudinal axis and the shaped hollow seat (8) is elongated in said longitudinal axis.
15. The treadmill according to claim 1 , wherein the grip portion of the handle is “U”-shaped.
16. The treadmill (1) according to claim 1 , wherein the grip portion (7 a) of the handle has a first and a second end, and wherein the treadmill (1) comprises a coupling portion (7 b) configured for connecting the handle (7) to the upright (3) and having an elongate shape, wherein the coupling portion (7 b) of the handle (7) connects said first and second end of the grip portion (7 a).
17. The treadmill according to claim 1 , wherein the treadmill is foldable by rotation of the uprights relative to the treadable surface.
18. A method for assembling a treadmill, comprising a connection of at least one handle to a corresponding upright of a frame of the treadmill, wherein said connection is removable and comprising the following steps:
coupling of the handle to the upright by means of a shape coupling between the handle and the upright;
activation of a lock and release mechanism for stably fixing the handle to the upright.
19. The method according to claim 18 , wherein said coupling step comprises the following steps:
positioning one end of the handle on a reference profile made on the top of a shape coupling portion formed by the upright;
rotating the handle about a first axis of rotation defined by the reference profile for producing a shape coupling.
20. The method according to claim 18 , comprising a step of rotating the upright relative to the treadable surface, for moving the treadmill into an open operating position, from a closed folded position.
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EP (1) | EP3002048B1 (en) |
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Also Published As
Publication number | Publication date |
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EP3002048B1 (en) | 2018-03-14 |
TW201613667A (en) | 2016-04-16 |
CN105251174A (en) | 2016-01-20 |
EP3002048A1 (en) | 2016-04-06 |
TWI605857B (en) | 2017-11-21 |
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