CA2201225A1 - Clamping device for clamping motorcycle wheels onto the shaft of a balancing machine - Google Patents
Clamping device for clamping motorcycle wheels onto the shaft of a balancing machineInfo
- Publication number
- CA2201225A1 CA2201225A1 CA 2201225 CA2201225A CA2201225A1 CA 2201225 A1 CA2201225 A1 CA 2201225A1 CA 2201225 CA2201225 CA 2201225 CA 2201225 A CA2201225 A CA 2201225A CA 2201225 A1 CA2201225 A1 CA 2201225A1
- Authority
- CA
- Canada
- Prior art keywords
- clamping device
- wheel
- arm
- device based
- clamping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/02—Details of balancing machines or devices
- G01M1/04—Adaptation of bearing support assemblies for receiving the body to be tested
- G01M1/045—Adaptation of bearing support assemblies for receiving the body to be tested the body being a vehicle wheel
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gripping On Spindles (AREA)
- Testing Of Balance (AREA)
- Clamps And Clips (AREA)
Abstract
A clamping device for clamping motorcycle wheels onto the shaft of a balancing machine, with a mechanism to center the wheels on the shaft of a balancing machine and with two diametrically opposed carriers that are radially displaceable against the wheel so that they become frictionally engaged with thewheel, as well as a mechanism for radially pressing the carriers against the wheel.
The carriers include swivel arms that pivot around a drag bearing and are arranged in diametric opposition to one another and at the same radial distance from one another. Carrier elements protrude from the other ends of the swivel arms, near the wheel being clamped onto the balancing machine. This clamping device is simple, while its application is both straightforward and reliable.
The carriers include swivel arms that pivot around a drag bearing and are arranged in diametric opposition to one another and at the same radial distance from one another. Carrier elements protrude from the other ends of the swivel arms, near the wheel being clamped onto the balancing machine. This clamping device is simple, while its application is both straightforward and reliable.
Description
. 2 0 ~ 2 25 TITLE: CLAMPING DEVICE FOR CLAMPING MOTORCYCLE WHEELS
ONTO THE SHAFT OF A BALANCING MACHINE
The invention concerns a clamping device, as described in the introductory clause of patent claim 1, for clamping motorcycle wheels onto the shaft of a balancing machine.
IT 0 1237574 describes the same type of clamping device; the device has a central shaft butt that centers a motorcycle wheel onto the shaft of a balancingmachine. A barrel is attached to the shaft of the balancing machine. Two wing-shaped rails extend in diametric directions from the barrel. Radially displaceable slides are attached to the ends of each rail. Carriers extend axially from theseslides in the vicinity of the wheel being clamped. Each of the slides is connected via joint rods to the diametrically opposed and equally spaced swivel arms of a double-armed manual lever that rotates around the central axis of the clamping device. Consequently, the joint rods are used to externally adjust the slides and the carriers attached to them against the wheel being clamped. A spring-loaded catch, which engages a cog wheel connected to the manual lever, can be activatedwith a manual switch. When the clamping device is set by rotating the manual switch, the cog wheel / catch arrangement engages the wheel. To be disengaged, the catch must be released with the manual switch.
The design of this known clamping device is complicated design and its operation both difficult and unsafe. The clamping device must be gripped during clamping in order to rotate the clamping lever, so that the carrier can be firmly pressed against the wheel through application of force. If the device is improperly tightened, the wheel can slip underneath the carriers during acceleration of thebalancing machine. Furthermore, when the catch is released, there is a chance that the double-armed clamping lever will recoil and injure the person operating J~ûi225~
the device. In addition, the slides' slide bearing on the rails is susceptible to failure, as it attracts dirt and can thus easily become jammed or worn.
The task of this invention is to provide a clamping device, as described in the introductory clause to patent claim 1, which is not subject to the disadvantages of the known clamping device, i.e., is straightforward in its design, can be operated easily and safely, and does not present the risk of injury.
The principle described in patent claim 1 presents a solution to the task 3s underlying this invention.
The basic concept of the invention consists of using swivel arms instead of the known slides. The swivel arms' pivoting bearings do not attract dirt and arenot subject to wear, as well as being easy and inexpensive to manufacture. Excess play or abrasion in the pivoting bearings cannot disrupt the device' operation, because the effects of both excess play and abrasion affect both pivoting bearings equally, thus preventing any general imbalance from occurring. Carrier elements that extend into the space occupied by the wheel being clamped are attached to the ends of the pivoting bearings; when the device is tightened, these carrier elements come up against the outside surface of the wheel being clamped and 4s grip the wheel when the shaft of the balancing machine begins to accelerate.
An especially advantageous extension of this basic concept is provided in patent claim 2. According to this extension, the swivel arm forms one arm of a double lever whose other arm points at least partly in a circumferential direction and is equipped with a centrifugal weight, so that when the clamping device is so rotated through acceleration of the shaft in the balancing machine, the centrifugal weight presses its arm radially outward and the other arm radially inward, thus pressing the carrier element against the wheel. Consequently, rather than being applied manually, the force needed to press the carrier element against the wheel is produced automatically by the centrifugal weight's ss centrifugal force, which is activated during acceleration of the balancing machine ~a-1225 shaft. A particularly advantageous feature is that the centrifugal force increases substantially at higher RPM levels, resulting in a corresponding increase in thecarrier elements' application force and the grip exerted on the wheel.
The centrifugal forces disappear again when the balancing machine stops running, so that the carrier elements release the wheel and it can be removed.
To prevent any imbalance from being introduced into the clamping device, the centrifugal weights and the swivel arms or the double lever arms must have the same mass.
The mass of the arm bearing the carrier element and the mass of the 6s carrier itself counteract the torque produced by the centrifugal weight.
Consequently, a practical extension of this application form of the invention consists of using a light-weight material, preferably aluminum, and/or a thin contoured material for the arm to which the carrier element is attached and/or for the carrier element itself.
In a practical extension of the invention, the swivel arm is actively connected to a spring that presses the carrier element against the wheel.
Advantageously, the spring should be a tension spring that engages the swivel arm. In order to be able to cancel out the resulting force, which is applied constantly in the direction of the device' operation, to relieve tension, a 7s mechanism is included that disengages the carrier element from the wheel. This mechanism may, for example, consist of a cam plate.
In a practical extension of the version with the double lever described in patent claim 2 an expansion element, preferably a gas pressure spring, engages the other arm to which the centrifugal weight is attached. Due to the location and direction in which the expansion element engages the arm, the expansion element supports the centrifugal force exerted by the centrifugal weight and presses the arm's guide point over a slack point and against a stop while the arm is pivoting into a resting position in which the carrier element is radially ~0 i 225 removed from the wheel. In this manner, the carrier elements come to rest in a 85 secure snapped-in position. This prevents them from pivoting freely back and forth and prevents a wheel from being pushed up and becoming disengaged.
This is particularly advantageous because there is a risk that, even when in a resting position, gravity can force at least one of the centrifugal weights to exert pressure against a contact element, which would make it especially difficult to 90 mount and remove a wheel.
In a practical extension of this version of the invention, the swivel arm's drag bearing, the lower arm's center of gravity with the centrifugal weight attached to it and the expansion element's guide point form a triangle, with theimaginary line connecting the drag bearing and the balancing machine shaft's 95 rotational axis crossing the triangle in such a way that when the clamping device is rotated the centrifugal weight moves the guide point back across the slack point. Thus, in a neutral position in which the balancing machine's shaft is notrotating, the expansion element torque, which acts against the direction of contact, predominates so that, as none of the torques produced by centrifugal oo forces can be greater in a neutral position, the swivel arm and contact elements cannot leave the neutral position. If the balancing machine is activated and theshaft and entire clamping device begin to rotate, the centrifugal force exerted by the centrifugal weights increases gradually, so that the opposite torque produced by the expansion element in a neutral position is canceled and the double lever 05 snaps across the slack point. Consequently, the polarity of the torque produced by the expansion element is reversed and this torque is added to the torque produced by the centrifugal weight's centrifugal force. This produces a strong contact force, which increases the grip on the wheel being clamped.
Advantageously, the carrier elements are pins that extend axially from the o end of each swivel arm into the space occupied by the clamped wheel. In an advantageous extension of this version, there are hooks at the ends of the pins ~2 0 1 225 that grip behind the wheel when the pins contact the wheel. In another advantageous feature, the hooks or the pins are axially adjustable, which allowsadjustments to be made to the axial expansion of the wheel being clamped, thus preventing it from gyrating. This version includes three advantageous carriers.
Axial adjustments of the pins can be easily made with an adjusting screw, with agroove and tappet guide preventing the pins from twisting.
In another advantageous extension of the version in which the swivel arms form a double lever, the arms of the double-armed levers are forcibly 0 linked with two joint rods that run in parallel to one another and are equidistant from the rotational axis of the balancing machine shaft. This ensures that both levers are in the same rotational position, thus preventing any imbalances from occurring. The parallel positioning of the joint rods and their equal distances from the rotational axis of the balancing machine shaft ensure that the joint rods do not produce an imbalance.
The invention will be described in detail using an example of the invention depicted in the figures.
Fig. 1 is an axial view of the invention and a clamped wheel, as seen from the perspective of the balancing machine (not shown).
0 Fig. 2 is a radial view of Fig. 1.
A dotted line in Fig. 1 indicates a clamping pin (1) for a motorcycle wheel (2). The mechanism used to attach the clamping device to the shaft of a balancing machine is not shown in the figure. The device includes a flat rail (3) that is attached to the shaft of a balancing machine. A double lever (4), which consists of two arms (5 and 6), is hinged to each end of the rail (3) at equal diametrical distances by means of a bearing neck (7). A carrier element in the shape of a pin (8) is located at the end of the arm (5). This carrier element is described in greater detail below, using fig. 2 for illustrative purposes. A centrifugal weight (9) is attached to the end of the arm (6). In addition, a gas pressure spring (10) flexibly ~20i~25 0 engages a guide point (11) on the arm (6), while the other end of the gas pressure spring (10) engages a guide point (12) on the rail (3). The rail (3) includes stop pins (13) that catch an edge (14) of the arm (6) once the arms (6), moving clockwise,have passed a slack point and have moved into a neutral position.
The diametrically opposed double levers (4), which are identical in design 145 and consequently have the same reference code in the figures, are forcibly linked to one another through joint rods (15 and 16), so that they are always in the same relative rotational position.
Figure 2 depicts a radial view of Figure 1. The components, which are labeled with the same reference codes, do not require further explanation.
However, in contrast to Figure 1, it is apparent in Figure 2 that there are hooks (17) attached to the ends of the pins (8) that engage behind the wheel (2), thusholding the wheel in a vertical plane in relation to the clamping pin (1). The vertical plane is determined by the contact surfaces (18) of contact pieces (19)located on the rail (3).
S5 The pins (8) are partially equipped with a screw thread (20), into which adjusting screws (21) are inserted. As is evident in the top portion of Figure 2, the front ends of guide pins (23) that are embedded in the rail (3) lock into longitudinal grooves (22) near the screw thread (20).
The clamping device described above is used as follows. Before a motorcycle wheel is placed onto the clamping pin (1), the double levers (4) are in a neutral position in which their edges (14) are flush with the stop pin (13). In this neutral position, the gas pressure spring's (10) hinge point (11) has movedacross the slack point, i.e., across the line connecting the bearing neck (7) and the clamping pin's (1) rotational axis. Therefore, the double levers (4) are in a stabile 165 neutral position.
In this position, a wheel (2) is mounted onto the clamping pin (1) until it rests on the support surfaces (18). Because of the double lever's (4) neutral L 2 ù i ~25 position, the pins (8) are positioned at a distance from the wheel's outside circumference during the mounting procedure. The figures do not clearly show 70 that this rotation simultaneously causes the hooks (17) to pivot until they point in an approximately circumferential direction, so that they do not obstruct the wheel (2) when it is being mounted.
When the balancing machine is rotated, the clamping device depicted in the figure also begins to rotate. As the centrifugal weights' (9) center of gravity (together with the arms' (6) center of gravity) has not moved across the aforementioned slack point in the neutral position, the centrifugal weights (9) immediately produce a centrifugal force, so that the aforementioned neutral position is immediately abandoned (without any action on the part of an operator) and the centrifugal forces (9) produce a strong counterclockwise torque.
80 This firmly presses the pins (8) against the outside circumference of the wheel (2), thus moving the wheel. As the hooks (17) are also pivoted into operating position, they assume the position depicted in figure 2, in which they engage the wheel (2) from behind and support it on the support surfaces (18).
When the balancing machine is turned off, the centrifugal weights' (9) 8s centrifugal force disappears and the pins (8) release the wheel (2).
ONTO THE SHAFT OF A BALANCING MACHINE
The invention concerns a clamping device, as described in the introductory clause of patent claim 1, for clamping motorcycle wheels onto the shaft of a balancing machine.
IT 0 1237574 describes the same type of clamping device; the device has a central shaft butt that centers a motorcycle wheel onto the shaft of a balancingmachine. A barrel is attached to the shaft of the balancing machine. Two wing-shaped rails extend in diametric directions from the barrel. Radially displaceable slides are attached to the ends of each rail. Carriers extend axially from theseslides in the vicinity of the wheel being clamped. Each of the slides is connected via joint rods to the diametrically opposed and equally spaced swivel arms of a double-armed manual lever that rotates around the central axis of the clamping device. Consequently, the joint rods are used to externally adjust the slides and the carriers attached to them against the wheel being clamped. A spring-loaded catch, which engages a cog wheel connected to the manual lever, can be activatedwith a manual switch. When the clamping device is set by rotating the manual switch, the cog wheel / catch arrangement engages the wheel. To be disengaged, the catch must be released with the manual switch.
The design of this known clamping device is complicated design and its operation both difficult and unsafe. The clamping device must be gripped during clamping in order to rotate the clamping lever, so that the carrier can be firmly pressed against the wheel through application of force. If the device is improperly tightened, the wheel can slip underneath the carriers during acceleration of thebalancing machine. Furthermore, when the catch is released, there is a chance that the double-armed clamping lever will recoil and injure the person operating J~ûi225~
the device. In addition, the slides' slide bearing on the rails is susceptible to failure, as it attracts dirt and can thus easily become jammed or worn.
The task of this invention is to provide a clamping device, as described in the introductory clause to patent claim 1, which is not subject to the disadvantages of the known clamping device, i.e., is straightforward in its design, can be operated easily and safely, and does not present the risk of injury.
The principle described in patent claim 1 presents a solution to the task 3s underlying this invention.
The basic concept of the invention consists of using swivel arms instead of the known slides. The swivel arms' pivoting bearings do not attract dirt and arenot subject to wear, as well as being easy and inexpensive to manufacture. Excess play or abrasion in the pivoting bearings cannot disrupt the device' operation, because the effects of both excess play and abrasion affect both pivoting bearings equally, thus preventing any general imbalance from occurring. Carrier elements that extend into the space occupied by the wheel being clamped are attached to the ends of the pivoting bearings; when the device is tightened, these carrier elements come up against the outside surface of the wheel being clamped and 4s grip the wheel when the shaft of the balancing machine begins to accelerate.
An especially advantageous extension of this basic concept is provided in patent claim 2. According to this extension, the swivel arm forms one arm of a double lever whose other arm points at least partly in a circumferential direction and is equipped with a centrifugal weight, so that when the clamping device is so rotated through acceleration of the shaft in the balancing machine, the centrifugal weight presses its arm radially outward and the other arm radially inward, thus pressing the carrier element against the wheel. Consequently, rather than being applied manually, the force needed to press the carrier element against the wheel is produced automatically by the centrifugal weight's ss centrifugal force, which is activated during acceleration of the balancing machine ~a-1225 shaft. A particularly advantageous feature is that the centrifugal force increases substantially at higher RPM levels, resulting in a corresponding increase in thecarrier elements' application force and the grip exerted on the wheel.
The centrifugal forces disappear again when the balancing machine stops running, so that the carrier elements release the wheel and it can be removed.
To prevent any imbalance from being introduced into the clamping device, the centrifugal weights and the swivel arms or the double lever arms must have the same mass.
The mass of the arm bearing the carrier element and the mass of the 6s carrier itself counteract the torque produced by the centrifugal weight.
Consequently, a practical extension of this application form of the invention consists of using a light-weight material, preferably aluminum, and/or a thin contoured material for the arm to which the carrier element is attached and/or for the carrier element itself.
In a practical extension of the invention, the swivel arm is actively connected to a spring that presses the carrier element against the wheel.
Advantageously, the spring should be a tension spring that engages the swivel arm. In order to be able to cancel out the resulting force, which is applied constantly in the direction of the device' operation, to relieve tension, a 7s mechanism is included that disengages the carrier element from the wheel. This mechanism may, for example, consist of a cam plate.
In a practical extension of the version with the double lever described in patent claim 2 an expansion element, preferably a gas pressure spring, engages the other arm to which the centrifugal weight is attached. Due to the location and direction in which the expansion element engages the arm, the expansion element supports the centrifugal force exerted by the centrifugal weight and presses the arm's guide point over a slack point and against a stop while the arm is pivoting into a resting position in which the carrier element is radially ~0 i 225 removed from the wheel. In this manner, the carrier elements come to rest in a 85 secure snapped-in position. This prevents them from pivoting freely back and forth and prevents a wheel from being pushed up and becoming disengaged.
This is particularly advantageous because there is a risk that, even when in a resting position, gravity can force at least one of the centrifugal weights to exert pressure against a contact element, which would make it especially difficult to 90 mount and remove a wheel.
In a practical extension of this version of the invention, the swivel arm's drag bearing, the lower arm's center of gravity with the centrifugal weight attached to it and the expansion element's guide point form a triangle, with theimaginary line connecting the drag bearing and the balancing machine shaft's 95 rotational axis crossing the triangle in such a way that when the clamping device is rotated the centrifugal weight moves the guide point back across the slack point. Thus, in a neutral position in which the balancing machine's shaft is notrotating, the expansion element torque, which acts against the direction of contact, predominates so that, as none of the torques produced by centrifugal oo forces can be greater in a neutral position, the swivel arm and contact elements cannot leave the neutral position. If the balancing machine is activated and theshaft and entire clamping device begin to rotate, the centrifugal force exerted by the centrifugal weights increases gradually, so that the opposite torque produced by the expansion element in a neutral position is canceled and the double lever 05 snaps across the slack point. Consequently, the polarity of the torque produced by the expansion element is reversed and this torque is added to the torque produced by the centrifugal weight's centrifugal force. This produces a strong contact force, which increases the grip on the wheel being clamped.
Advantageously, the carrier elements are pins that extend axially from the o end of each swivel arm into the space occupied by the clamped wheel. In an advantageous extension of this version, there are hooks at the ends of the pins ~2 0 1 225 that grip behind the wheel when the pins contact the wheel. In another advantageous feature, the hooks or the pins are axially adjustable, which allowsadjustments to be made to the axial expansion of the wheel being clamped, thus preventing it from gyrating. This version includes three advantageous carriers.
Axial adjustments of the pins can be easily made with an adjusting screw, with agroove and tappet guide preventing the pins from twisting.
In another advantageous extension of the version in which the swivel arms form a double lever, the arms of the double-armed levers are forcibly 0 linked with two joint rods that run in parallel to one another and are equidistant from the rotational axis of the balancing machine shaft. This ensures that both levers are in the same rotational position, thus preventing any imbalances from occurring. The parallel positioning of the joint rods and their equal distances from the rotational axis of the balancing machine shaft ensure that the joint rods do not produce an imbalance.
The invention will be described in detail using an example of the invention depicted in the figures.
Fig. 1 is an axial view of the invention and a clamped wheel, as seen from the perspective of the balancing machine (not shown).
0 Fig. 2 is a radial view of Fig. 1.
A dotted line in Fig. 1 indicates a clamping pin (1) for a motorcycle wheel (2). The mechanism used to attach the clamping device to the shaft of a balancing machine is not shown in the figure. The device includes a flat rail (3) that is attached to the shaft of a balancing machine. A double lever (4), which consists of two arms (5 and 6), is hinged to each end of the rail (3) at equal diametrical distances by means of a bearing neck (7). A carrier element in the shape of a pin (8) is located at the end of the arm (5). This carrier element is described in greater detail below, using fig. 2 for illustrative purposes. A centrifugal weight (9) is attached to the end of the arm (6). In addition, a gas pressure spring (10) flexibly ~20i~25 0 engages a guide point (11) on the arm (6), while the other end of the gas pressure spring (10) engages a guide point (12) on the rail (3). The rail (3) includes stop pins (13) that catch an edge (14) of the arm (6) once the arms (6), moving clockwise,have passed a slack point and have moved into a neutral position.
The diametrically opposed double levers (4), which are identical in design 145 and consequently have the same reference code in the figures, are forcibly linked to one another through joint rods (15 and 16), so that they are always in the same relative rotational position.
Figure 2 depicts a radial view of Figure 1. The components, which are labeled with the same reference codes, do not require further explanation.
However, in contrast to Figure 1, it is apparent in Figure 2 that there are hooks (17) attached to the ends of the pins (8) that engage behind the wheel (2), thusholding the wheel in a vertical plane in relation to the clamping pin (1). The vertical plane is determined by the contact surfaces (18) of contact pieces (19)located on the rail (3).
S5 The pins (8) are partially equipped with a screw thread (20), into which adjusting screws (21) are inserted. As is evident in the top portion of Figure 2, the front ends of guide pins (23) that are embedded in the rail (3) lock into longitudinal grooves (22) near the screw thread (20).
The clamping device described above is used as follows. Before a motorcycle wheel is placed onto the clamping pin (1), the double levers (4) are in a neutral position in which their edges (14) are flush with the stop pin (13). In this neutral position, the gas pressure spring's (10) hinge point (11) has movedacross the slack point, i.e., across the line connecting the bearing neck (7) and the clamping pin's (1) rotational axis. Therefore, the double levers (4) are in a stabile 165 neutral position.
In this position, a wheel (2) is mounted onto the clamping pin (1) until it rests on the support surfaces (18). Because of the double lever's (4) neutral L 2 ù i ~25 position, the pins (8) are positioned at a distance from the wheel's outside circumference during the mounting procedure. The figures do not clearly show 70 that this rotation simultaneously causes the hooks (17) to pivot until they point in an approximately circumferential direction, so that they do not obstruct the wheel (2) when it is being mounted.
When the balancing machine is rotated, the clamping device depicted in the figure also begins to rotate. As the centrifugal weights' (9) center of gravity (together with the arms' (6) center of gravity) has not moved across the aforementioned slack point in the neutral position, the centrifugal weights (9) immediately produce a centrifugal force, so that the aforementioned neutral position is immediately abandoned (without any action on the part of an operator) and the centrifugal forces (9) produce a strong counterclockwise torque.
80 This firmly presses the pins (8) against the outside circumference of the wheel (2), thus moving the wheel. As the hooks (17) are also pivoted into operating position, they assume the position depicted in figure 2, in which they engage the wheel (2) from behind and support it on the support surfaces (18).
When the balancing machine is turned off, the centrifugal weights' (9) 8s centrifugal force disappears and the pins (8) release the wheel (2).
Claims (12)
1. A clamping device for clamping motorcycle wheels to the shaft of a balancing machine, with mechanisms for center-mounting the wheels onto the shaft of a balancing machine, with two movable diametrically opposed carriers that are radially displaceable with respect to the wheel, so that the wheel can be frictionally engaged and moved, and with mechanisms designed to press the carriers radially against the wheel, characterized in that the carriers have swivel arms, that the swivel arms pivot around diametrically opposed bearing necks (7) that are arranged at equal radial distances from one another and that protrudingcarrier elements are attached to the ends of the swivel arms in the vicinity of the wheel.
2. A clamping device based on claim 1, characterized in that each of the swivel arms consists of one arm (5) of a double lever (4), the other arm of which points at least partially in circumferential direction and is equipped with a centrifugal weight (9), so that when the clamping device is rotated, each centrifugal weight (9) presses its arm (6) radially outward and the other arm (5) radially inward, causing the carrier element attached to it to press against the wheel (2).
3. A clamping device based on claim 2, characterized in that the arm (5) to which the carrier element is attached and/or the carrier element itself consists of a light material and/or a thin, contoured material.
4. A clamping device based on claim 1, characterized in that the swivel arm is actively connected to a spring that presses the carrier element against the wheel (2).
5. A clamping device based on claim 4, characterized in that the spring is a tension spring that engages the arm with the carrier element, and that the device includes a mechanism that disengages the carrier element from the wheel (2).
6. A clamping device based on claim 2, characterized in that an expansion element, preferably a gas pressure spring (10), engages the opposing arm (6) containing the centrifugal weight (9) in such a way that it supports the centrifugal force of the centrifugal weight and, when the arm pivots into a resting positionin which the carrier element is radially removed from the wheel (2), presses it so that its guide point (11) crosses a slack point and comes up against a stop (13).
7. A clamping device based on claim 6, characterized in that the double lever's (4) drag bearing, the lower arm's center of gravity with the centrifugalweight (9) attached to it and the expansion element's guide point (11) form a triangle, with the imaginary line connecting the drag bearing and the clamping pin's (1) rotational axis crossing the triangle in such a way that when the clamping device is rotated the centrifugal weight (9) moves the expansion element's guide point (9) back across the aforementioned slack point.
8. A clamping device based on claim 1, characterized in that the carrier elements are pins (8) that protrude in axial fashion from the end of the swivel arm.
9. A clamping device based on claim 8, characterized in that there are hooks (17) at the ends of the pins (8) that grip the wheel (2) when the pins (8) contact the wheel (2).
10. A clamping device based on claim 9, characterized in that the hooks (17) or the pins (8) are axially displaceable.
11. A clamping device based on claim 10, characterized in that guides (22, 23) secure the pins (8) or the hooks (17) against twisting.
12. A clamping device based on claim 2, characterized in that the arms (5, 6) ofthe double levers (4) are forcibly connected by two joint rods (15,16) that run parallel to one another and are equidistant from the rotational axis of the clamping pin (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1996118301 DE19618301C2 (en) | 1996-05-07 | 1996-05-07 | Clamping device for clamping a wheel of a motorcycle onto the shaft of a balancing machine |
| DE19618301.4-52 | 1996-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2201225A1 true CA2201225A1 (en) | 1997-11-07 |
Family
ID=7793589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2201225 Abandoned CA2201225A1 (en) | 1996-05-07 | 1997-03-27 | Clamping device for clamping motorcycle wheels onto the shaft of a balancing machine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0806645A3 (en) |
| CA (1) | CA2201225A1 (en) |
| DE (1) | DE19618301C2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6871543B2 (en) | 2002-01-25 | 2005-03-29 | Snap-On Equipment Gmbh | Apparatus and method for measuring of any imbalance of a motorcycle wheel |
| CN108480065A (en) * | 2018-06-07 | 2018-09-04 | 中国工程物理研究院总体工程研究所 | Dynamic trimming system and the centrifuge for having dynamic trimming system |
| CN109690231A (en) * | 2016-09-12 | 2019-04-26 | 罗伯特·博世有限公司 | Wheel adaptive device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19934345A1 (en) * | 1999-06-15 | 2001-01-11 | Haweka Gmbh | Motorcycle wheel clamp for balancing machines is fully adjustable |
| AU5679900A (en) * | 1999-06-15 | 2001-01-02 | Haweka Auswuchttechnik Horst Warkotsch Gmbh | Clamping mechanism for clamping a wheel of a motorcycle onto the shaft of a balancing machine |
| DE10341212B3 (en) * | 2003-09-04 | 2004-10-14 | Harald Oppermann | Wheel balancing machine for motorcycle wheel has wheel secured by clamping device with coupled clamp elements acting in radial direction |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1237574B (en) * | 1989-11-08 | 1993-06-08 | Corghi Spa | Universal auto centring unit to stop motorcycle wheels on balancing machines. |
| IT239260Y1 (en) * | 1995-11-07 | 2001-02-26 | Femas Srl | EQUIPMENT FOR LOCKING THE WHEELS OF MOTORCYCLES ON THE SHAFT OF THE BALANCING MACHINES |
-
1996
- 1996-05-07 DE DE1996118301 patent/DE19618301C2/en not_active Expired - Fee Related
- 1996-12-24 EP EP96120863A patent/EP0806645A3/en not_active Withdrawn
-
1997
- 1997-03-27 CA CA 2201225 patent/CA2201225A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6871543B2 (en) | 2002-01-25 | 2005-03-29 | Snap-On Equipment Gmbh | Apparatus and method for measuring of any imbalance of a motorcycle wheel |
| CN109690231A (en) * | 2016-09-12 | 2019-04-26 | 罗伯特·博世有限公司 | Wheel adaptive device |
| CN108480065A (en) * | 2018-06-07 | 2018-09-04 | 中国工程物理研究院总体工程研究所 | Dynamic trimming system and the centrifuge for having dynamic trimming system |
| CN108480065B (en) * | 2018-06-07 | 2024-01-30 | 中国工程物理研究院总体工程研究所 | Dynamic balancing system and centrifugal machine with dynamic balancing system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0806645A3 (en) | 1999-01-13 |
| DE19618301C2 (en) | 1998-05-14 |
| EP0806645A2 (en) | 1997-11-12 |
| DE19618301A1 (en) | 1997-11-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |