CA2283487A1 - Braking device - Google Patents
Braking device Download PDFInfo
- Publication number
- CA2283487A1 CA2283487A1 CA002283487A CA2283487A CA2283487A1 CA 2283487 A1 CA2283487 A1 CA 2283487A1 CA 002283487 A CA002283487 A CA 002283487A CA 2283487 A CA2283487 A CA 2283487A CA 2283487 A1 CA2283487 A1 CA 2283487A1
- Authority
- CA
- Canada
- Prior art keywords
- brake
- arm
- pivoting
- slide
- brake slide
- 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
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C17/14—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches
- A63C17/1409—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches contacting one or more of the wheels
- A63C17/1427—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches contacting one or more of the wheels the brake contacting other wheel associated surfaces, e.g. hubs, brake discs or wheel flanks
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C17/04—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs
- A63C17/06—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C17/14—Roller skates; Skate-boards with brakes, e.g. toe stoppers, freewheel roller clutches
- A63C2017/1481—Leg or ankle operated
Landscapes
- Braking Arrangements (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention relates to a braking device for a preferably single-railed roller skate comprising rollers (4) arranged one after the other on a support (3), a pivoting brake lever which can be actuated via the leg (2) or neck (2') of the roller skate, and a brake slide (6) which can be displaced by the pivoting brake lever in the longitudinal direction of the support (3) and acts on one or more of the rollers (4). The support (3) is or can be connected with the shoe part (1) of the roller skate on the lower side of same shoe part and the pivoting brake lever is embodied by at least one actuating arm (11, 11') and at least one force application arm (12) which is in active contact, preferably impact contact, with the brake slide (6). The swivel pin (13) of the pivoting brake lever is mounted on the support (3) or the shoe part (1) of the roller skate, whereby the free end of the actuating arm (11, 11') can be pivoted by moving the leg (2) or neck (2') of said skate. The brake slide (6) can essentially be displaced on the plane formed by the rotational axes (5) of the rollers.
Description
FILE, PtN-fN~THIS AMENDED
Tf~fT TRRNSLATION
BRAKING ~EVICE
The invention relates to a roller skate with a support and a plurality of rollers arranged one after the other, preferably inline, on the support. The roller skate has a cooperating shoe part with a shoe leg or shoe neck which can be pivoted with respect to the shoe part, a pivoting brake (ever which can be actuated by the shoe leg or the shoe neck, and a brake slide which can be moved by the pivoting brake lever in a longitudinal direction of the support and acts on one or several of the rollers. The support is connected to or can be connected to a bottom portion of the shoe part. The pivoting brake lever is formed by at least one actuating arm and at least one force application arm which is in active contact with the brake slide and preferably pushes the brake slide. The swivel pin of the pivoting brake lever is mounted on the support of the roller skate or on the shoe part, and the free end of the actuating arm can be pivoted by moving the shoe leg ar shoe neck. The brake slide can be displaced in a plane formed by the rotation axes of the rollers.
Braking devices for inline roller skates are of considerable importance for the safety and comfort of the user. In addition, braking devices also important for the other members of the public, since these devices affect their safety as well. A number of conventions! braking devices have so far not provided satisfactory solutions, since the braking action is inadequate, requires an unsteady body position for their activation. Moreover, the braking devices can be inadvertently applied due to excessive abrasion of the rollers if the brake is applied to rollers themselves, and may be too complex to manufacture and therefore expensive.
Conventional roller skates have different braking systems which act mostly vn the support surface, i.e., the pavement or the floor, but in some cases also on the rollers themselves- The present invention relates exclusively to braking systems which act on the rollers andlor the wheels, causing a braking action even if the brake is applied to only one of the rollers.
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_..m.__.~...- .,......,~".-"_-... _ _...__~.,...._...._."~,_..._ . . .
._..__._n_.__._ To increase the braking action, the brake may advantageously be applied to two or more rollers. It is usually advantageous not to brake the last roller since many roller skaters are accustomed to the conventional braking systems and will lift the roller skates when braking. They braking action would then only affect the last roller and disadvantageously also leads to an unsteady body position. Braking in this way will frequently strongly abrade the roller, which is undesirable, and may cause the roller to malfunction in operation and thereby severely degrade the operation and braking characteristics of the inline roller skates.
Braking systems which affect several rollers arranged one after the other, are disclosed, for example, in the following published patents: W(7-A-93l20912 (Landis), U.S. 5,171,032 {Dettmer) and U_S. 5,232,231 (Carlsrnith)_ These systems, however, are coupled to activation mechanisms which may either impede the free movement of arms and legs and may cause an unintentional and danger4us application of the braking action, or prevent the roller skater from shifting his or her weight during the normal use of the roller skates.
The conversion of a rotation motion into a translation motion forms a basis for developing an activation mechanism for a braking system. In practice, the anatomical situation which will now be described, has to be taken into consideration. in the upright position, the tibia is essentially oriented vertically and encloses an angle of substantially 90° with the foot.
With each step, the tibia rotates at the ankle and moves with increasing step size more and more towards the rear (the angle between the sole of the foot and the front of the tibia becomes greater than 90°). The leg of the shoe follows this automatic pivoting motion of the tibia and also moves backward near the ankle. It is here nvt essential if the shoe leg is connected with the shell of the shoe by an articulated joint or not. If the shoe has is flexible enough in spite of the stiff portions providing support, then the leg of the shoe follows this rearward motion even if no articulated joint is provided. Such shoes as well as shoes which are connected to the shell with an articulated joint, are known 60 ~9t7d N~SI~~i~IS~ W l~JN3H EEZZbGZZTZ 66:~I 666I/Z0/60 ~Z9-q~f 988-b EO d EEZZY~ZZIZ lY~9l BB-l0-d3S
in the art.
A number of a braking systems are based on this anatomical and physical effect, wherein the leg is automatically tilted during a step. Most of these braking systems apply a brake to the pavement or the floor, as described, for example, in EP-A-0 585 764 (Pelegrini et al.). A different braking system is disclosed in EP-A-0 567 948 (Pelegrini et al.) wherein the brake is only applied to the most rearward roller of the roller skate which causes the aforedescribed disadvantages, such as an uneven wear.
W4 A-96124414 (Burian, Rubarits) discloses a transfer mechanism which redirects the tilting motion of the shoe leg for actuating a braking device which can act on a plurality of rollers_ This braking device, however, operates only with shoes having a leg that is connected to the shell with an articulated joint, or with shoes having a leg with at least a reinforced collar, so that the force of the leg movement is properly transferred to the transfer member.
In practice, however, this arrangement disadvantageously prevents "soft boots", which are shoes lacking either a stiff shell or a stiff shaft and an articulated joint therebetween, from being used with such a braking device_ Since soft boots are very comfortable and are preferred by many roller skaters, it is therefore desirable to provide braking devices that can also be used with this type of shoe.
EP-A2-O 744 198 discloses an arrangement wherein a fever associated with a shoe and a movable frame operates a braking device which is activated by a mufti-part mechanism (gear wheel) which acts on a side face of the roller that is oriented perpendicular to the roller axis. Although this arrangement does not require modifications to the shoe, it is not operated by the shoe leg and has the serious deficiencies described befow_ The braking device disclosed in EP-A2-0 744 198 uses a one-sided Lever. The lower end of the one-sided lever includes a swivel joint which is b0 3Jtid N~SI3~I~I3~ W J.JN~H 6EZZbbZZTZ 6E :~T 666T/IB/60 VZ9-qor 9B8-b b0 d EfiZZb~ZZIZ tb~9l 88-l0-d3S
rotatably supported on the frame holding the rollers. Because this type of one-sided lever, however, requires a lot of space, the braking device cannot be located at the height of the roller axes. Practical tests have shown that the location where the brake slide is pressed against the lateral inclined roller or wheel surface portions is important when a brake slide according to the present invention is employed. If the brake slide is arranged above the plane defined by the rotation axes of the rollers in the travel direction, then the friction forces applied in the rotation direction of the rollers at the time of the braking contact pull the brake slide in the direction of travel. This may abruptly 1 D lock the rollers, causing unwanted wear of the rollers and other safety defects.
If, however, the brake slide is arranged below the plane defined by the rotation axes of the rollers in the travel direction, then the brake slide is continually pushed away by the rotating rollers or wheels by a certain distance, thereby degrading the braking action. These shortcomings must be overcome with an effective braking device. By arranging the brake slide at the height of the rotation axes, the two effects described above cancel each other, providing an optimal braking action. By increasing or decreasing the relative contact surface disposed above Qr below the plane defined by the roller axes, the desired braking action can be further tailored and adjusted. In addition, 2p guiding the brake slide at the height of the rotation axes also makes the braking system more stable and reliable, since the frame is particularly rigid at the height of the axes and the axes are commonly screwed together.
Moreover, the device described in EP--A2-0 744 198 applies only a pulling motion to the braking frame which actuates the actual braking device through gear wheels. This pulling motion, however, requires at the point where the load is applied a connection, which can withstand the tension force.
This leads to a comparatively complex design which is expensive to manufacture and makes it difficult for an untrained person to dismantle the braking system for maintenance and to exchange rollers.
GB--A-609 453 discloses a braking device for a roller skate with a front roller and two rear rollers arranged side-by-side. A brake slide applies the S0 39dd N~SI~b~I~~ W I~~IN~H EEZZbbZZIZ 6E :~I 666T/Z0/60 ~Z~-q~P 988-a 90 d fi~ZZti~ZZIZ lb~9l 88-l0-d3S
brake exactly in the plane defined by the rotation axes of the rollers. The brake slide is moved by a force arm of a pivoting brake lever having a pivot axis arranged on a support surface of the roller skate. The actuating arm of the pivoting brake lever can be pivoted by moving the neck of the shoe forward, which is placed on the main body of the roller skate. The pivoting lever and the shoe neck are coupled to each other with a belt.
It is an object of the invention to provide a roller skate which is easy to maintain and has rollers that are easy to exchange.
It is another object, to provide a braking device which allows a roller skater to brake without the risk of injury. It is yet another object to provide a uniform load on the roller skate during the braking action.
Easy disassembly of the roller skate is very important for the reasons given above. Disassembly of the complex braking device disclosed in EP-A2-0 744 198 presents a difficult problem for a technically unskilled person.
Moreover, a braking device has to brake satisfactorily and optimally (which is particularly important due to the relatively small size of the rollers), which defines the relationship between the braking force and the actuating travel of the braking device. for example, a large applied force when the tibia is tilted backwards at the ankle, may make the braking action too strong by applying an undesirably large braking force to the rollers. Conversely, if the actuating travel of the braking device is too small, then there may be no braking action at all, or tha separation between the braking device and the rollers or wheels may be extremely small when the braking device is not activated. In the latter case, even a small amount of dirt (small stones adhering to the rubber surface of the rollers) may cause an unwanted braking action and therefore a safety risk. It is therefore important that the length of the force arm and the load arm of the lever can be adjusted by varying the attachment height of the rotation axis, which is a hardly feasible with the one-90 3~JtId N~SI~b~I3~ W J.~IN3H EEZZbbZZtZ 66 =W 666T/T0/60 qZ9-q~f 988-a 90 d EEZZ~qZZIt 1~~91 88-l0-d3S
sided fever described in EP-A2-0 744 198 which has to be rotatably supported on the lower edge of the frame holding the rollers. As a result, the force arm is disadvantageously too long and the actuating travel of the braking device is too small.
It is a therefore another object of the invention, to provide a braking device wherein the applied braking force can be suitably adjusted.
Not only does the public have an interest in an effective, reliable and inexpensive braking device for roller skates, but the user of such roller skates may also wish to use his or her roller skates for walking andlor climbing stairs without risk. In a known solution for this problem, for example, runners are placed on the rollers for walking. This solution, however, is complex and a user must not only constantly carry the runners, but must also be proficient in mounting them.
It is therefore another object of the invention to provide a braking device which enables risk-free walking and climbing of stairs with the roller skates.
According to cane aspect of the invention, the swivel pin is displaced rearwardly relative to a plane which extends through the pivot axis located between the shoe part and one of the shoe leg or shoe neck and is oriented substantially perpendicular to the longitudinal direction of the support.
Wth this novel transfer mechanism, the force of the leg is transferred to a brake slide when the leg is rotated rearwards. The transfer mechanism does not require changes to the shell or the leg of a conventional shoe, since the lever receiving and transferring the rearward rotation of the leg does not require a firm contact with the leg. This arrangement has significant advantages in manufacture, since neither the leg nor the shall have to be altered for implementing the braking device according to the invention. Since the braking device according to the invention can be used with a large number s L0 d9dd N~5Idb3I~d W l~~fN3H EEZZbbZZtZ 6E:ST 666T/Z0/6e YZ9-q°P 988-b 10 d EEZZ~~ZZIZ l~~~l 88-l0-d3S
of existing roller skates, in particular inline skates, such conventional roller skates can also be upgraded. The device of the invention also significantly improves the travel, braking and operating features of a roller skate. Because there is no direct connection between the pivoting brake lever and the leg and the pivoting brake lever does not have to be pulled along when the leg moves forward, the roller skater is able to move around much more freely which is quite important- When the shaft is moved rearwards, the transfer mechanism makes contact automatically at a certain point in the rearward motion, whereby the transfer mechanism transfers the applied force to the brake slide.
The dual-arm lever of the invention has a shorter force arm and therefore also a longer actuating travel of the brake slide. Moreover, the axis where the pivoting lever is attached, can be arranged at an arbitrary height. In addition, the solution to the problem should be technically simple and the product should be easy to manufacture, which the present invention solves with its technically very simple design.
According to another embodiment of the invention, the swivel pin of the pivoting brake lever may be formed of two or mare swivel bearings- Vllith this arrangement, swivel bearings can be arranged on opposite sides to provide a support for rotatir~n, without requiring a continuous swivel pin.
According to yet another embodiment, the brake slide may be formed of a frame with at least one contact surface disposed in the region of one or several rollers, preferably excluding the most rearward roller of the roller skate. When the pivoting brake (ever is actuated from a released position into a braking position, the contact surface can be brought into contact with the inGined lateral roller surtaces of the rollers proximate tQ the rolling surface yr with brake surfaces, such as brake disks, disposed thereon.
Since the brake is applied to the roller skate not merely at one end, but along its entire length, the braking action can be very smooth. Moreover, because of the additional braking surfaces, the brakes are less worn even 80 39t7d N3SIdd3Idd W J~~iN~H E6ZZVGZZTZ 6E :~T 666Z/Z0/60 qZ9-qoP 988-b 80 d EEZZY~ZZIZ lq~9l BB-l0-d3S
near the marginal regions of the rollers-According to yet another variation of the invention, the actuating arm and the force application arm may be rigidly connected in the region of the swivel pin of the pivoting brake lever. This arrangement facilitates transfer of the force from the shoe leg and shoe neck, respectively, to the brake slide.
According to another variation of the invention, aside from the force application arm and the first actuating arm, a second actuating arm which can preferably be pivoted about the swivel pin of the pivoting brake lever, is provided. The free end of the second actuating arm contacts the movable brake slide and is in active contact with the force application arm through en adjusting element, preferably an adjustments screw. When the. force application arm is pivoted, the force application arm presses the free end of the second actuating arm against the movable brake slide- This allows a very effective adjustment of the response threshold of the braking device of the invention, in particular at a location where the roller skater is not put at risk and hislher movement is not impaired.
Advantageously, the force application arm is approximately half as long as the second actuating arm, which is particularly advantageous for transferring the force and making adjustments.
According tv another embodiment of the invention, a second dual-arm actuating arm which can preferably be pivoted about the swivel pin of the pivoting brake lever, may be provided independent of the force application arm end the first actuating arm. The free end of the second actuating arm contacts the movable brake slide and is in active contact with the force application arm through an adjusting element, preferably an adjustments screw- An eccentric head of a pivoting eccentric arm is connected to the second tree end of the second actuating arm. The eccentric head of the pivoting eccentric arm locks the force application arm permanently in the braking position of the brake slide, when the pivoting eccentric arm is rotated into the eccentric position.
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According to yet another feature of the invention, the force application arm may include a plurality of spaced~apart recesses which are open at a marginal edge and extend along a longitudinal direction of the force application arm.
According to still another embodiment of the invention, the actuating arm may be formed of two members which are connected with each other in an articulated manner, wherein the end of one of the members of the actuating arm extends over the pivot paint and contacts with the end of the extended arm an elastic tongue formed on the other end of the extended arm.
The tongue is elastically deformed when the actuating arm is pivoted, but before a farce connection is established between the members of the actuating arm. In this way, the force transfer from the shoe leg and the shoe neck, respectively, to the brake slide can be effectively damped.
Furthermore, it is also desirable to push the brake slide onto the rollers for braking the rollers in such a way that the brake slide is locked in place.
To implement such a mechanism, a number of requirements have to be satisfied to provide a reliable, economical and user friendly solution. The same applies for adjusting the actuating arm or lever_ The following conditions should be satisfed: the brake slide has to be pushed so as to reliably clamp the rollers between the contact point and the roller axis. Accordingly, the lever has to amplify the applied force. The lever which applies the force, has to be fixedly secured in the clamping position, since otherwise the lever may be unintentionally released, thereby endangering the skater who may be climbing stairs at that time. The lacking device should the effective for rollers of different size and shape, so that the brake slide or other parts do not have to be exchanged where other types of rollers are used_ The same applies to the adjustability of the actuating lever which has to have sufficient clearance_ It is also important that the operation of the braking mechanism and the operation of the locking mechanism do not interfere with each other.
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Moreover, no parts than which can cause injury or represent an obstacle for the skater, may project outwardly. The invention must therefore have a small footprint. The present inventifln satisfies all these criteria as well as others which are not specifically mentioned. The adjustment device provides an optimal adjustment of the actuating lever, so as to provide a match to the different tibia sizes and to adjust the exact time when the brake is to be applied.
In another variation of the invention, following the discussion above, an auxiliary brake slide which is independent from the aforedescribed brake slide and preferably includes two wedge-shaped contact surfaces, is arranged is a region of the most rearward roller. The brake slide as well as the auxiliary brake slide can be moved with a pivoting lever, so that when the pivoting lever is in an eccentric position, the contact surfaces of the auxiliary brake slide and the contact surfaces of the brake slide are permanently Pocked in the braking position.
According to yet another embodiment of the invention, the brake slide and the auxiliary slide are arranged so as to move in a plane, which greatly simplifies the travel mechanism for locking the rollers.
According to stilt another embodiment, between the brake slide and the auxiliary brake slide there is arranged an eccentric wing disk which can be rotated about a swivel pin extending preferably parallel to the rotation axes of the rollers. The eccentric wing disk, when in the eccentric position of the pivoting lever, increases the me~tual separation between the brake slide and the auxiliary brake slide. When the eccentric wing disk is in the free position of the pivoting lever, the mutual separati4n decreases. With the eccentric wing disk, the rollers can be effectively locked in the braking position.
According to another exemplified embodiment of the invention, the eccentric wing disk in its eccentric position has straight latching regions, preventing the eccentric wing disk from inadvertently being released from the ZT 3Jdd NdSIdb~I3d W J.bNdH EEZZbbZZTZ 66~W 666L/Z0/6e ~Z9-q~f 988-a tl d EEZZY~ZZIZ 1~~91 BB-l0-d3S
locked braking position of the rollers.
Finally, between the brake slide and the auxiliary brake slide, an adjustment pin having wedge-shaped projections may be movably guided in a direction perpendicular to the displacement direction of the brake slide and the auxiliary brake slide, respectively. The adjustment pin is connected to the head of the eccentric pivoting lever in an articulated manner. In the eccentric position of the eccentric pivoting lever, the wedge-shaped projections are pressed against diametrically opposed contact surfaces of the brake slide and the auxiliary brake slide, so as tv be permanently locked in the braking position. The wedge-shaped contact surfaces very effectively lock the rollers in their respective braking positions.
The invention will now be described in more detail with reference to exemplified embodiments illustrated in the drawings, in which:
FIG. 1 shows a side view of an embodiment of the braking device according to the invention;
FIG. 2 shows a side view of another embodiment of the braking device according to the invention;
FlG.3a shows a partial cross-section through another embodiment of the braking device according to the invention;
FIG. 3b is an exploded view of FIG. 3C;
FlG.3c shows a partial cross-section through another embodiment of the braking device according to the invention;
FIG. 4 shows an exploded view of another embodiment of the braking device according to the invention;
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FIG. 5 is a side view of another embodiment of the braking device according to the invention;
FIG. 6 is an exploded view of a detail of the braking device according to FIG. 5;
FIG.7 is an exploded view of another embodiment of the braking device according to the invention;
FIGS. 8a and 8b represent a partial side view and a rear view, respectively, of another embodiment of the braking device according to the invention;
FIG. 9 is a perspective view of a detail of another embodiment of the braking device according to the invention;
FIGS. 10 and 11 are a side view and a cross-sectional view, respectively, through another embodiment of a braking device accarding to the invention;
FIG. 11 is a partial side view of another embodiment of the braking device according to the invention;
FIG. 12 is a detail df another embodiment of the braking device according to the invention;
FIGS. 13a, 13b and 13c show details of another embodiment of the braking device according to the invention in different operating positions;
FIG. 14 is a top view of different rollers sizes and their respective brgke contact points;
FIG. 15 is a partial view of another embodiment of the braking 6Z 39dd N~SI~~ISI~~ W ~lbN3H E6ZZbbZZZZ 66:W 666L/Z0/60 tiZ9-q~f 988-a El d EEZZ~YZZIZ ZY~9l 88-l0-d3S
device according to the invention;
FIGS. 1 Ca and 16b are a side view and a top view, respectively, of another embodiment of the braking device according to the invention;
FIGS. 17a and 17b show schematically two positions of the braking device according to FIG. 16a and FIG. 1fib;
F1G_ 18 is a cross-section through another embodiment of the braking device according to the invention;
FIG. 19 shows a detail of FIG. 18;
FIG. 20 is a side view of an embodiment of a pivoting brake lever;
FIG. 21 is a side view of another embodiment of the pivoting brake lever;
FIGS_ 22a and 22b show 2~ longitudinal section through another embodiment of the braking device according to the invention; and FiG.23 is a perspective view of another embodiment of the braking device according to the invention.
FIG. 1 shows a braking device for an inline roller skate with rollers 4 arranged one after the other on a support 3. The braking device according to the invention will be described in the following only for inline roller skates.
Those skilled in the relevant art, however, will appreciate that the concept of the invention can also be applied to roller skates having two or more rails.
The roller skate typically consists of a shoe part adapted to receive the foot of the roller skater and a shoe leg 2 or shoe neck 2'. This distinction is made to make it clear that for the purpose of the invention a shoe leg 2 (FIG. 2) which is connected to the shoe part ~ in an articulated manner, is bT 39dd NSSI~~ISIS~ W I~~INSH EEZZ7bZZTZ 6E=~Z 666T/ZB/60 YZ9-9~P 98B-a til d EEZd~bZtlZ ~b~91 88-l0-d3S
equivalent to a shoe neck 2' which is flexibly connected to the shoe part 1, as applied to, far example. a so-called "soft boot." The invention can be successfully implemented with both variants- The braking device of the invention can therefore advantageously be used regardless of the shoe type, and no special parts on the shoe part or the shoe leg or shoe neck are required. The inventive braking device may either be connected rigidly to the underside of the shoe part or may be connectable thereto. With a soft boat, the user can walk around wearing the soft flexible shoe and can - if desired -attach the support with the rollers and the inventive braking device to the underside of the shoe, far example, with a suitable binding.
The rollers arranged on the support can be formed of a rigid core covered with rubber or plastic. Alternatively, the rollers can be replaced with wheels having an air tube andlor tires as well as with other variations.
The braking device according to the invention is activated via a pivoting brake lever 11, 12, wherein the pivoting motion is transferred to a brake slide which is movable in the longitudinal direction of the support and acts on one or several of the rollers.
As seen in FIG. 1 and FIG. 2, the pivoting brake fever is formed of an actuating arm 11 and a force application arm 12 which is in a push-type contact with the brake slide 6. The swivel pin 13 of the pivoting brake lever 11, 12 of FIG. 1 and FIG. 2 is arranged on the support 3. The swivel pin, however, may also be disposed on the shoe part 1 of the roller skate and supported in another manner. For example, as shown in FIG. 1, a fork-shaped pivoting support which receives and supports the swivel pin 13 between its legs, is arranged on the rearward portion of the support 3. Gonversely, in the embodiment shown in F1G. 2, the swivel pin 13 is directly supported on the support 3. To provide a symmetric arrangement, the swivel pin 13 extends parallel to the rotation axes 5 of the rollers 4 and may be formed of two or more swivel bearings.
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------...~ __..____.....__..._._.....___._.._._._..._...._....,...,~~
The push-type contact between the force application arm 12 and the brake slide fi actively moves the brake slide fi only when the shoe leg 2 or the shoe neck 2' is pivoted in a direction opposing the travel direction.
Conversely, the brake slide is released by the restoring springs 9 0 from its braking position when the shoe leg 2 or shoe neck 2' moves with the travel direction. The brake slide 6 is therefore not pulled back from its braking position by the movement of the shoe leg, although this may be a possible embodiment of the invention. The force application arm 12 and the brake slide 6 may also be coupled through an articulated joint, thereby providing an active contact between the force application arm 12 and the brake slide 6 in both rotation directions.
It is important for the operation of the braking device of the invention that the pivoting motion of the shoe leg or the shoe neck is transferred via a duaharm pivoting lever. In this way, the brake force can be precisely adjusted and the contact point of the brake slide can be arranged to have the greatest effect, since the brake slide 6 essentially moves in the plane defined by the rotation axes 5 of the rollers. The brake lever 6 produces the braking action through contact surtaces 7 which act preferably on those surtaces of the rollers 4 that are located between the center and the outer regions of the rollers, as will be described in more detail below.
FIG. 1 and FIG. 2 show two different adjustments which can be implemented with all the described embodiments, In the embodiment illustrated in FIG. 1, the free end of the farce application arm 12 has an adjustment screw 16 with a threaded shaft 43. The threaded shaft 43 can be rotated in a thread provided in the force application arm 12, thereby permitting adjustment of the actuation threshold for the onset of a braking action.
The embodiment of F1G- 2 shows an adjustment feature with an adjustment screw 16 which is supported in the region of the free end of the actuating arm 11. A spring element 17 is arranged a between the adjustment screw 16 and the shoe leg 2 for damping the force exerted by the shoe leg 2.
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The brake slide is formed of a frame 6 with at least one contact surtace 7 located in the region of one or several rollers 4. The contact surface 7 can be brought into contact with the inclined lateral roller surfaces of the rollers proximate to the rolling surface or with brake surfaces, such as brake disks 39, disposed thereon (Fig. Via, 3b, 3G), when the pivoting brake lever is actuated from a release position into a braking position. The frame-like structure of the brake lever 6 is visible in FIG. 7 and in FIG. 11. In a preferred embodiment, the most rearward roller 4 of the roller skate does not have contact surfaces 7, since otherwise many users of conventional roller skates may apply twice the braking force to the most rearward roller. When the shoe leg 2 or the shoe neck 2' are pivoted in a direction opposite to the travel direction, the brake lever 6 is moved by the. pivoting brake lever 11, 12 in the travel direction, so that the contact surfaces 7 are pressed against the corresponding surfaces on the rollers 4, producing a braking action. The braking action is fairly uniform since the brake lever 6 acts on several rollers 4.
The contact surfaces 7 of the rollers 4 for braking may be reinforced by applying elements 39 to their respective sides, thereby preventing abrasion or wear of the rollers_ As seen in FIGS. 3b and 3c, slip-on elements 39 are provided which can be attached to the sides of the rollers and are supported together with the rollers on the rotation axes 5. The slip-on elements 39 have extensions 40 which oppose to the contact surfaces 7 of the brake slide. The extensions 40 can be brought into contact with the contact surfaces by moving the brake slide, thereby providing a braking action without abrading the roller 4 itself. The contact surfaces 7 and the extensions 40 can be serrated to produce a characteristic braking sound and to improve the braking action.
As seen in FIG. 3a, the extensions 40' of the slip-on elements 39 rnay be formed so as to extend perpendicular to the rotation axes 5, wherein the end faces of the extensions operate as opposing surfaces of the contact surfaces 7_ Accordingly, the contact surfaces 7 are arranged so as to extend LI S~Jdd N3SI~2~SI3~ W I.~IN~H EEZZbbZZZZ 6E ~W 666Z/10/60 YZ9-q~P 988-b It d EEZZ~tiZZIZ lY~9l 88-l0-d3S
parallel to the rotation axes 5.
The actuating arm 11 and the force application arm 12 of the embodiments of FIG. 1 and 2 are rigidly connected in the region of the swivel pin 13 of the pivoting brake lever- Both the actuating arm 11 and the force application arm 12 can be formed of several parts which may also be connected with each other in an articulated manner, as long as a lever action is attained when a driving member contacts the brake slide 6 with a push-type action.
In the embodiment according to F1G. 4, the pivoting brake lever has the form of a yoke 11, 12, wherein the swivel pin 13 extends through the side faces of the yoke 11, 12. The yoke 11, 12 is supported by the support pins 13' arranged on both sides of the yoke. The force application arm does not act directly on the brake slide fi, but makes active contact with the movable brake slide 6 through a fork-shaped actuating arm 20 which can be pivoted about the swivel pin 13 of the pivoting brake. The $ctuation threshold for actuating the brake slide 6 can be adjusted by using an adjusting screw 16"', wherein one end of the adjusting screw 16"' makes contact with a transverse rib of the actu2~ting arm 20. The pivoting motion of the force application arm 12 presses with the adjustment screw 16"' the free end of the actuating arm 20, which is formed by the two legs 43, against the movable brake slide 6 or the two frame portions of the brake slide 6 which are in a push-type contact with the legs of the actuating element 20.
FIGS. 5 and 0 illustrate an embodiment wherein the swivel pin 13 is movably retained on the shoe part 1. A support element 35 is provided on the backside of the shoe part 1, which has opposing elongated holes 36 for rotatabfy supporting the swivel pins 13' which can be a screwed into the narrow sides of the pivoting brake fever 11, 12. The swivel pin 13 can now be moved in the elongated holes 36 with the adjustment screw 16"from a position proximate to the shoe part 1 to an opposing, distal positive, so that the response threshold of the braKing device can be adjusted accordingly. In this embodiment, the legs 43 of the force application arm 12 press directly against 8T d9dd NdSI3~I~I3d W J.2~N~H EEZZbbZZZZ 6E :~T 666Z/Z0/60 YZ9-qof 989-b 81 d EEZZ~~ZZIZ 1~~91 BB-l0-d3S
the frame ends of the brake slide 6 when the actuating lever 11 is operated.
FIG. 7 shows an exploded view of a roller support with a braking device according to the invention. The support 3 is assembled from two parts, with two longitudinal grooves 8 for movably supporting the frame of th~a brake slide 6 formed on the inside of each of the parts. The yoke-shaped pivoting brake lever 11, 12 can be pivoted about a support screw 13 which is screwed into the support 3. The actuating arm 20 which has two legs 43 in push-type contact with the frame ends of the brake slide 6, is supported on the same swivel pin 13. The contact surfaces 7 are provided on the respective rearward ends of the spaced-apart openings in the frame in which the rollers are rotatably supported (not shown in FIG. 7). The rotation axes of the rollers extend through the bores 5 provided in both parts of the support 3_ In this embodiment, the brake slide 6 operates only on the forward rollers 4, with no braking action applied to the most rearward roller 4 (not shown).
Also provided is a swivel arm 14' which is arranged on the outside of the braking device according to the invention for rotation to about a swivel pin 15'. A locking head 22"' is non-rotatably connected with the swivel pin 15'.
Two eccentric disks 90 are formed on the locking head 22"'_ When the pivoting lever 1 Q' is actuated, the eccentric disks 90 move the brake slide 6 from its release position into the braking position independent of the pivoting brake arm 11, 12, thereby preventing the rollers (not shown) from rotating. At the same time, the profiled center portion of the locking head 22"' is pushed against the most rearward roller 4 (not shown) to prevent also this toiler from rotating. All the rollers 4 are now locked, thereby significantly facilitating movements which are different from the normal skating motion, such as walking and climbing stairs.
The rollers 4 can also be locked, as shown in FIGS. Sa and 8b, by providing a pivotable eccentric lever 14 with eccentric head 22, wherein the eccentric head 22 of the pivvtable eccentric lever, when rotated into its eccentric position, locks the actuating arm 11 permanently in the braking position of the brake slide fa.
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In the embodiment illustrated in FIGS. 8a and 8b, a dual.-arm actuating arm 2Q, 21 is provided which can pivot about the swivel pin 13 of the pivoting brake lever independent of the force application arm 12 and the first actuating arm 11. The free end of the actuating arm forms a push-type contact with one end of the movable brake slide 6. An adjusting screw 16"' provided on the actuating arm is in active contact with the fflrce application arm 12. The eccentric head 22 of the pivoting eccentric arm 14 is connected to the second free end of the actuating arm 20, wherein the eccentric head 22 of the pivoting eccentric arm 14 - when rotated into the eccentric position - locks the actuating arm 20 permanently in the braking position of the brake slide 6. The eccentric arm 14 is moved into the eccentric position by raising the arm from the position shown in FIGS. 8a and 8b.
FiG. 9 shows a modification of the invention, wherein the eccentric arm 14 presses the actuating arm 20 against the most rearward roller also through a contact surtace 9', so that in the eccentric position the most rearward roller is also locked-According to another embodiment illustrated in FIG. 10, the rollers can be locked by an auxiliary brake slide 9 which is independent of the brake slide 6 and has two wedge-shaped contact surfaces T arranged in a region of the most rearward roller. The brake slide fi as well as the auxiliary brake slide 9 can be moved in a plane with the help of a pivoting lever 14' about a pivotable eccentric wing disk 22' having a pivot axis oriented parallel to the rotation axes 5 of the rollers- The actuating arm 14' has a pressure surface 2~' for' easier operation. When the pivoting levar 14 is in the eccentric position, the contact surfaces 7' of the auxiliary brake slide and the contact surfaces ~
of the brake slide 6 are permanently locked in the braking position, so that all rollers are arrested and the user can walk around without risk. FIG. 11 shows a locking device 32, 30' which has an adjustable position and can be Pocked.
To release the locked position of the swivel arm, the legs 44 have to be pressed together by hand for releasing the lock and returning the swivel arm 0Z 39dd N3SId~13I~d W I~~INdH EEZZbbZZTZ 6E=~T 666T/T0/60 tiZS-qof 9B8-b OZ d EEZZ~bZZIZ lb:9l BB-l0-d3S
to the release position.
!n the embodiments illustrated in F1GS_ 12, 13 and 15, an eccentric wing disk 22', 22" which can be rotated about a pivot axis 15', 15", is arranged between the brake slide 6 and the auxiliary brake slide 9. When pivoting lever 14' is in the eccentric position, the eccentric wing disk 22', 22"
increases the mutual separation between the brake slide E and the auxiliary brake slide 9. Conversely, the mutual separation decreases, when the pivoting lever 14' is in the free position.
The eccentric position of the eccentric wing disk 22' which can be attained by rotating the eccentric wings, is shown in FIG. 12 as a dashed fine_ As seen in FIGS. 13a, b, c, the latching regions are straight when the eccentric wing disk 22' is in its eccentric position. FIG. 13a shows the free position of the eccentric wing disk 22', FIGS. 13b shows a first latching position, and F1G. 13c a second latching position, which define two locking positions specific for different embodiments of rollers (see FIG. 14).
In FIG. 15, the pivot axis of the eccentric wing disk 22" extends perpendicular to the rotation axes 5 of the rollers 4.
In the embodiment according to FIGS. 15a, b, and 17a, b, an adjustment pin 23 with wedge-shaped projections is movably guided between the brake slide 6 and the auxiliary brake slide 9 in a direction perpendicular to the displacement direction of the brake slide 6 and the auxiliary brake slide 9, respectively_ The adjustment pin 23 is connected in an articulated manner with the head 22"' of the eccentric pivoting lever 14'. In the eccentric position of the eccentric pivoting lever 14', the wedge-shaped projections are pressed against diametrically opposed contact surfaces 25 of the brake slide C, and the auxiliary brake slide 9, which are thereby permanently locked in the braking position.
FIG. 17a shows hereby the release position of the eccentric fever 14', whereas FIG. 17b shows the operating (pressed) position, in which both the Z0 3Jdd N3SI3b3I3d W J~bN3H 2~
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brake slide 6 and the auxiliary brake slide 9 are in the locked position. As seen in FIG. 16a, the height of the auxiliary brake slide 9 is offset relative to the height of the brake slide 0, so that the contact surfaces T of the auxiliary brake slide operate on a region of the most rear~nrard roller 4 which is offset from to the respective axes.
Referring now to FIG. 18, a slide member 91 is provided which protrudes to the outside through a side wall of the support 3, as shown in greater detail in FIG. 19. The slide member 91 has two projections which are formed as a double wedge and pressed against diametrically opposing wedge-shaped surtaces of the brake slide 6 and the auxiliary brake slide 9 when the pivoting lever 14"' is rotated. In this way, the rollers 4 can be.focked regardless if the brake is actuated with the pivoting brake lever-FIG. 20 shows a pivoting brake lever adapted to dampen the force exerted by the shoe leg and shoe neck, respectively. The actuating arm is here formed of two parts 1 ~ , 11' which are connected with each other in an articulated manner. The end of one of the members 11' of the actuating arm projects over the pivot point, whereas the end of the extended arm 11 "
contacts an elastic tongue 17 formed on the other end of the extended arm 11. When the actuating arm is pivoted, the tongue 17 is elastically deformed before the force connection between the different parts of the actuating arm is established. This motion dampens the braking action.
As seen in FIG. 21, the actuating arm 11 has along its length a number of spaced-apart recesses 19 which are open at the marginal edge. The recesses 19 provide the actuating arm 11 with elastic properties which dampen the force exerted by the shoe leg and the shoe neck, respectively.
FIG. 22 shows another embodiment of the invention, wherein a slide element 6' is provided with a wedge-shaped end 46 and guided at a height which is offset from the height of the rotation axes of the rollers 4. A brake slide 47 has a profile with contact surfaces T , wherein the profile can be Z0 ~Btld N~SISJ~I3.~ W ~~iNdH 6EZZbbZZZZ 9b :~Z 666Z/T0/69 ~Z~-qoP X88-a ZO d EEZZtitiZZIZ b9~91 88-l0-d3S
moved from a position above the rollers to the inclined lateral braking surfaces of the rollers. When the wedge-shaped surface 4f of the slide element 6' is pressed against the diametrically opposing wedge-shaped surface 46' of the brake slide 47 by rotating the force application arm 12, the contact surtaces y' are pressed from above against the inclined lateral contact surfaces of the rollers 4, thereby causing a corresponding braking action.
In another embodiment of the invention illustrated in FIG. 23, the force application arm 12 press~as a slide element 6' having wedge-shaped end surtaces against wedges 4fi' formed on a brake clasp 48 which extends along the rollers 4 and partially surrounds the upper regions of the rollers 4. The contact surfaces of the brake clasp 48 are thereby pressed from the side against the inGined lateral roller surfaces.
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Tf~fT TRRNSLATION
BRAKING ~EVICE
The invention relates to a roller skate with a support and a plurality of rollers arranged one after the other, preferably inline, on the support. The roller skate has a cooperating shoe part with a shoe leg or shoe neck which can be pivoted with respect to the shoe part, a pivoting brake (ever which can be actuated by the shoe leg or the shoe neck, and a brake slide which can be moved by the pivoting brake lever in a longitudinal direction of the support and acts on one or several of the rollers. The support is connected to or can be connected to a bottom portion of the shoe part. The pivoting brake lever is formed by at least one actuating arm and at least one force application arm which is in active contact with the brake slide and preferably pushes the brake slide. The swivel pin of the pivoting brake lever is mounted on the support of the roller skate or on the shoe part, and the free end of the actuating arm can be pivoted by moving the shoe leg ar shoe neck. The brake slide can be displaced in a plane formed by the rotation axes of the rollers.
Braking devices for inline roller skates are of considerable importance for the safety and comfort of the user. In addition, braking devices also important for the other members of the public, since these devices affect their safety as well. A number of conventions! braking devices have so far not provided satisfactory solutions, since the braking action is inadequate, requires an unsteady body position for their activation. Moreover, the braking devices can be inadvertently applied due to excessive abrasion of the rollers if the brake is applied to rollers themselves, and may be too complex to manufacture and therefore expensive.
Conventional roller skates have different braking systems which act mostly vn the support surface, i.e., the pavement or the floor, but in some cases also on the rollers themselves- The present invention relates exclusively to braking systems which act on the rollers andlor the wheels, causing a braking action even if the brake is applied to only one of the rollers.
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._..__._n_.__._ To increase the braking action, the brake may advantageously be applied to two or more rollers. It is usually advantageous not to brake the last roller since many roller skaters are accustomed to the conventional braking systems and will lift the roller skates when braking. They braking action would then only affect the last roller and disadvantageously also leads to an unsteady body position. Braking in this way will frequently strongly abrade the roller, which is undesirable, and may cause the roller to malfunction in operation and thereby severely degrade the operation and braking characteristics of the inline roller skates.
Braking systems which affect several rollers arranged one after the other, are disclosed, for example, in the following published patents: W(7-A-93l20912 (Landis), U.S. 5,171,032 {Dettmer) and U_S. 5,232,231 (Carlsrnith)_ These systems, however, are coupled to activation mechanisms which may either impede the free movement of arms and legs and may cause an unintentional and danger4us application of the braking action, or prevent the roller skater from shifting his or her weight during the normal use of the roller skates.
The conversion of a rotation motion into a translation motion forms a basis for developing an activation mechanism for a braking system. In practice, the anatomical situation which will now be described, has to be taken into consideration. in the upright position, the tibia is essentially oriented vertically and encloses an angle of substantially 90° with the foot.
With each step, the tibia rotates at the ankle and moves with increasing step size more and more towards the rear (the angle between the sole of the foot and the front of the tibia becomes greater than 90°). The leg of the shoe follows this automatic pivoting motion of the tibia and also moves backward near the ankle. It is here nvt essential if the shoe leg is connected with the shell of the shoe by an articulated joint or not. If the shoe has is flexible enough in spite of the stiff portions providing support, then the leg of the shoe follows this rearward motion even if no articulated joint is provided. Such shoes as well as shoes which are connected to the shell with an articulated joint, are known 60 ~9t7d N~SI~~i~IS~ W l~JN3H EEZZbGZZTZ 66:~I 666I/Z0/60 ~Z9-q~f 988-b EO d EEZZY~ZZIZ lY~9l BB-l0-d3S
in the art.
A number of a braking systems are based on this anatomical and physical effect, wherein the leg is automatically tilted during a step. Most of these braking systems apply a brake to the pavement or the floor, as described, for example, in EP-A-0 585 764 (Pelegrini et al.). A different braking system is disclosed in EP-A-0 567 948 (Pelegrini et al.) wherein the brake is only applied to the most rearward roller of the roller skate which causes the aforedescribed disadvantages, such as an uneven wear.
W4 A-96124414 (Burian, Rubarits) discloses a transfer mechanism which redirects the tilting motion of the shoe leg for actuating a braking device which can act on a plurality of rollers_ This braking device, however, operates only with shoes having a leg that is connected to the shell with an articulated joint, or with shoes having a leg with at least a reinforced collar, so that the force of the leg movement is properly transferred to the transfer member.
In practice, however, this arrangement disadvantageously prevents "soft boots", which are shoes lacking either a stiff shell or a stiff shaft and an articulated joint therebetween, from being used with such a braking device_ Since soft boots are very comfortable and are preferred by many roller skaters, it is therefore desirable to provide braking devices that can also be used with this type of shoe.
EP-A2-O 744 198 discloses an arrangement wherein a fever associated with a shoe and a movable frame operates a braking device which is activated by a mufti-part mechanism (gear wheel) which acts on a side face of the roller that is oriented perpendicular to the roller axis. Although this arrangement does not require modifications to the shoe, it is not operated by the shoe leg and has the serious deficiencies described befow_ The braking device disclosed in EP-A2-0 744 198 uses a one-sided Lever. The lower end of the one-sided lever includes a swivel joint which is b0 3Jtid N~SI3~I~I3~ W J.JN~H 6EZZbbZZTZ 6E :~T 666T/IB/60 VZ9-qor 9B8-b b0 d EfiZZb~ZZIZ tb~9l 88-l0-d3S
rotatably supported on the frame holding the rollers. Because this type of one-sided lever, however, requires a lot of space, the braking device cannot be located at the height of the roller axes. Practical tests have shown that the location where the brake slide is pressed against the lateral inclined roller or wheel surface portions is important when a brake slide according to the present invention is employed. If the brake slide is arranged above the plane defined by the rotation axes of the rollers in the travel direction, then the friction forces applied in the rotation direction of the rollers at the time of the braking contact pull the brake slide in the direction of travel. This may abruptly 1 D lock the rollers, causing unwanted wear of the rollers and other safety defects.
If, however, the brake slide is arranged below the plane defined by the rotation axes of the rollers in the travel direction, then the brake slide is continually pushed away by the rotating rollers or wheels by a certain distance, thereby degrading the braking action. These shortcomings must be overcome with an effective braking device. By arranging the brake slide at the height of the rotation axes, the two effects described above cancel each other, providing an optimal braking action. By increasing or decreasing the relative contact surface disposed above Qr below the plane defined by the roller axes, the desired braking action can be further tailored and adjusted. In addition, 2p guiding the brake slide at the height of the rotation axes also makes the braking system more stable and reliable, since the frame is particularly rigid at the height of the axes and the axes are commonly screwed together.
Moreover, the device described in EP--A2-0 744 198 applies only a pulling motion to the braking frame which actuates the actual braking device through gear wheels. This pulling motion, however, requires at the point where the load is applied a connection, which can withstand the tension force.
This leads to a comparatively complex design which is expensive to manufacture and makes it difficult for an untrained person to dismantle the braking system for maintenance and to exchange rollers.
GB--A-609 453 discloses a braking device for a roller skate with a front roller and two rear rollers arranged side-by-side. A brake slide applies the S0 39dd N~SI~b~I~~ W I~~IN~H EEZZbbZZIZ 6E :~I 666T/Z0/60 ~Z~-q~P 988-a 90 d fi~ZZti~ZZIZ lb~9l 88-l0-d3S
brake exactly in the plane defined by the rotation axes of the rollers. The brake slide is moved by a force arm of a pivoting brake lever having a pivot axis arranged on a support surface of the roller skate. The actuating arm of the pivoting brake lever can be pivoted by moving the neck of the shoe forward, which is placed on the main body of the roller skate. The pivoting lever and the shoe neck are coupled to each other with a belt.
It is an object of the invention to provide a roller skate which is easy to maintain and has rollers that are easy to exchange.
It is another object, to provide a braking device which allows a roller skater to brake without the risk of injury. It is yet another object to provide a uniform load on the roller skate during the braking action.
Easy disassembly of the roller skate is very important for the reasons given above. Disassembly of the complex braking device disclosed in EP-A2-0 744 198 presents a difficult problem for a technically unskilled person.
Moreover, a braking device has to brake satisfactorily and optimally (which is particularly important due to the relatively small size of the rollers), which defines the relationship between the braking force and the actuating travel of the braking device. for example, a large applied force when the tibia is tilted backwards at the ankle, may make the braking action too strong by applying an undesirably large braking force to the rollers. Conversely, if the actuating travel of the braking device is too small, then there may be no braking action at all, or tha separation between the braking device and the rollers or wheels may be extremely small when the braking device is not activated. In the latter case, even a small amount of dirt (small stones adhering to the rubber surface of the rollers) may cause an unwanted braking action and therefore a safety risk. It is therefore important that the length of the force arm and the load arm of the lever can be adjusted by varying the attachment height of the rotation axis, which is a hardly feasible with the one-90 3~JtId N~SI~b~I3~ W J.~IN3H EEZZbbZZtZ 66 =W 666T/T0/60 qZ9-q~f 988-a 90 d EEZZ~qZZIt 1~~91 88-l0-d3S
sided fever described in EP-A2-0 744 198 which has to be rotatably supported on the lower edge of the frame holding the rollers. As a result, the force arm is disadvantageously too long and the actuating travel of the braking device is too small.
It is a therefore another object of the invention, to provide a braking device wherein the applied braking force can be suitably adjusted.
Not only does the public have an interest in an effective, reliable and inexpensive braking device for roller skates, but the user of such roller skates may also wish to use his or her roller skates for walking andlor climbing stairs without risk. In a known solution for this problem, for example, runners are placed on the rollers for walking. This solution, however, is complex and a user must not only constantly carry the runners, but must also be proficient in mounting them.
It is therefore another object of the invention to provide a braking device which enables risk-free walking and climbing of stairs with the roller skates.
According to cane aspect of the invention, the swivel pin is displaced rearwardly relative to a plane which extends through the pivot axis located between the shoe part and one of the shoe leg or shoe neck and is oriented substantially perpendicular to the longitudinal direction of the support.
Wth this novel transfer mechanism, the force of the leg is transferred to a brake slide when the leg is rotated rearwards. The transfer mechanism does not require changes to the shell or the leg of a conventional shoe, since the lever receiving and transferring the rearward rotation of the leg does not require a firm contact with the leg. This arrangement has significant advantages in manufacture, since neither the leg nor the shall have to be altered for implementing the braking device according to the invention. Since the braking device according to the invention can be used with a large number s L0 d9dd N~5Idb3I~d W l~~fN3H EEZZbbZZtZ 6E:ST 666T/Z0/6e YZ9-q°P 988-b 10 d EEZZ~~ZZIZ l~~~l 88-l0-d3S
of existing roller skates, in particular inline skates, such conventional roller skates can also be upgraded. The device of the invention also significantly improves the travel, braking and operating features of a roller skate. Because there is no direct connection between the pivoting brake lever and the leg and the pivoting brake lever does not have to be pulled along when the leg moves forward, the roller skater is able to move around much more freely which is quite important- When the shaft is moved rearwards, the transfer mechanism makes contact automatically at a certain point in the rearward motion, whereby the transfer mechanism transfers the applied force to the brake slide.
The dual-arm lever of the invention has a shorter force arm and therefore also a longer actuating travel of the brake slide. Moreover, the axis where the pivoting lever is attached, can be arranged at an arbitrary height. In addition, the solution to the problem should be technically simple and the product should be easy to manufacture, which the present invention solves with its technically very simple design.
According to another embodiment of the invention, the swivel pin of the pivoting brake lever may be formed of two or mare swivel bearings- Vllith this arrangement, swivel bearings can be arranged on opposite sides to provide a support for rotatir~n, without requiring a continuous swivel pin.
According to yet another embodiment, the brake slide may be formed of a frame with at least one contact surface disposed in the region of one or several rollers, preferably excluding the most rearward roller of the roller skate. When the pivoting brake (ever is actuated from a released position into a braking position, the contact surface can be brought into contact with the inGined lateral roller surtaces of the rollers proximate tQ the rolling surface yr with brake surfaces, such as brake disks, disposed thereon.
Since the brake is applied to the roller skate not merely at one end, but along its entire length, the braking action can be very smooth. Moreover, because of the additional braking surfaces, the brakes are less worn even 80 39t7d N3SIdd3Idd W J~~iN~H E6ZZVGZZTZ 6E :~T 666Z/Z0/60 qZ9-qoP 988-b 80 d EEZZY~ZZIZ lq~9l BB-l0-d3S
near the marginal regions of the rollers-According to yet another variation of the invention, the actuating arm and the force application arm may be rigidly connected in the region of the swivel pin of the pivoting brake lever. This arrangement facilitates transfer of the force from the shoe leg and shoe neck, respectively, to the brake slide.
According to another variation of the invention, aside from the force application arm and the first actuating arm, a second actuating arm which can preferably be pivoted about the swivel pin of the pivoting brake lever, is provided. The free end of the second actuating arm contacts the movable brake slide and is in active contact with the force application arm through en adjusting element, preferably an adjustments screw. When the. force application arm is pivoted, the force application arm presses the free end of the second actuating arm against the movable brake slide- This allows a very effective adjustment of the response threshold of the braking device of the invention, in particular at a location where the roller skater is not put at risk and hislher movement is not impaired.
Advantageously, the force application arm is approximately half as long as the second actuating arm, which is particularly advantageous for transferring the force and making adjustments.
According tv another embodiment of the invention, a second dual-arm actuating arm which can preferably be pivoted about the swivel pin of the pivoting brake lever, may be provided independent of the force application arm end the first actuating arm. The free end of the second actuating arm contacts the movable brake slide and is in active contact with the force application arm through an adjusting element, preferably an adjustments screw- An eccentric head of a pivoting eccentric arm is connected to the second tree end of the second actuating arm. The eccentric head of the pivoting eccentric arm locks the force application arm permanently in the braking position of the brake slide, when the pivoting eccentric arm is rotated into the eccentric position.
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According to yet another feature of the invention, the force application arm may include a plurality of spaced~apart recesses which are open at a marginal edge and extend along a longitudinal direction of the force application arm.
According to still another embodiment of the invention, the actuating arm may be formed of two members which are connected with each other in an articulated manner, wherein the end of one of the members of the actuating arm extends over the pivot paint and contacts with the end of the extended arm an elastic tongue formed on the other end of the extended arm.
The tongue is elastically deformed when the actuating arm is pivoted, but before a farce connection is established between the members of the actuating arm. In this way, the force transfer from the shoe leg and the shoe neck, respectively, to the brake slide can be effectively damped.
Furthermore, it is also desirable to push the brake slide onto the rollers for braking the rollers in such a way that the brake slide is locked in place.
To implement such a mechanism, a number of requirements have to be satisfied to provide a reliable, economical and user friendly solution. The same applies for adjusting the actuating arm or lever_ The following conditions should be satisfed: the brake slide has to be pushed so as to reliably clamp the rollers between the contact point and the roller axis. Accordingly, the lever has to amplify the applied force. The lever which applies the force, has to be fixedly secured in the clamping position, since otherwise the lever may be unintentionally released, thereby endangering the skater who may be climbing stairs at that time. The lacking device should the effective for rollers of different size and shape, so that the brake slide or other parts do not have to be exchanged where other types of rollers are used_ The same applies to the adjustability of the actuating lever which has to have sufficient clearance_ It is also important that the operation of the braking mechanism and the operation of the locking mechanism do not interfere with each other.
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Moreover, no parts than which can cause injury or represent an obstacle for the skater, may project outwardly. The invention must therefore have a small footprint. The present inventifln satisfies all these criteria as well as others which are not specifically mentioned. The adjustment device provides an optimal adjustment of the actuating lever, so as to provide a match to the different tibia sizes and to adjust the exact time when the brake is to be applied.
In another variation of the invention, following the discussion above, an auxiliary brake slide which is independent from the aforedescribed brake slide and preferably includes two wedge-shaped contact surfaces, is arranged is a region of the most rearward roller. The brake slide as well as the auxiliary brake slide can be moved with a pivoting lever, so that when the pivoting lever is in an eccentric position, the contact surfaces of the auxiliary brake slide and the contact surfaces of the brake slide are permanently Pocked in the braking position.
According to yet another embodiment of the invention, the brake slide and the auxiliary slide are arranged so as to move in a plane, which greatly simplifies the travel mechanism for locking the rollers.
According to stilt another embodiment, between the brake slide and the auxiliary brake slide there is arranged an eccentric wing disk which can be rotated about a swivel pin extending preferably parallel to the rotation axes of the rollers. The eccentric wing disk, when in the eccentric position of the pivoting lever, increases the me~tual separation between the brake slide and the auxiliary brake slide. When the eccentric wing disk is in the free position of the pivoting lever, the mutual separati4n decreases. With the eccentric wing disk, the rollers can be effectively locked in the braking position.
According to another exemplified embodiment of the invention, the eccentric wing disk in its eccentric position has straight latching regions, preventing the eccentric wing disk from inadvertently being released from the ZT 3Jdd NdSIdb~I3d W J.bNdH EEZZbbZZTZ 66~W 666L/Z0/6e ~Z9-q~f 988-a tl d EEZZY~ZZIZ 1~~91 BB-l0-d3S
locked braking position of the rollers.
Finally, between the brake slide and the auxiliary brake slide, an adjustment pin having wedge-shaped projections may be movably guided in a direction perpendicular to the displacement direction of the brake slide and the auxiliary brake slide, respectively. The adjustment pin is connected to the head of the eccentric pivoting lever in an articulated manner. In the eccentric position of the eccentric pivoting lever, the wedge-shaped projections are pressed against diametrically opposed contact surfaces of the brake slide and the auxiliary brake slide, so as tv be permanently locked in the braking position. The wedge-shaped contact surfaces very effectively lock the rollers in their respective braking positions.
The invention will now be described in more detail with reference to exemplified embodiments illustrated in the drawings, in which:
FIG. 1 shows a side view of an embodiment of the braking device according to the invention;
FIG. 2 shows a side view of another embodiment of the braking device according to the invention;
FlG.3a shows a partial cross-section through another embodiment of the braking device according to the invention;
FIG. 3b is an exploded view of FIG. 3C;
FlG.3c shows a partial cross-section through another embodiment of the braking device according to the invention;
FIG. 4 shows an exploded view of another embodiment of the braking device according to the invention;
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FIG. 5 is a side view of another embodiment of the braking device according to the invention;
FIG. 6 is an exploded view of a detail of the braking device according to FIG. 5;
FIG.7 is an exploded view of another embodiment of the braking device according to the invention;
FIGS. 8a and 8b represent a partial side view and a rear view, respectively, of another embodiment of the braking device according to the invention;
FIG. 9 is a perspective view of a detail of another embodiment of the braking device according to the invention;
FIGS. 10 and 11 are a side view and a cross-sectional view, respectively, through another embodiment of a braking device accarding to the invention;
FIG. 11 is a partial side view of another embodiment of the braking device according to the invention;
FIG. 12 is a detail df another embodiment of the braking device according to the invention;
FIGS. 13a, 13b and 13c show details of another embodiment of the braking device according to the invention in different operating positions;
FIG. 14 is a top view of different rollers sizes and their respective brgke contact points;
FIG. 15 is a partial view of another embodiment of the braking 6Z 39dd N~SI~~ISI~~ W ~lbN3H E6ZZbbZZZZ 66:W 666L/Z0/60 tiZ9-q~f 988-a El d EEZZ~YZZIZ ZY~9l 88-l0-d3S
device according to the invention;
FIGS. 1 Ca and 16b are a side view and a top view, respectively, of another embodiment of the braking device according to the invention;
FIGS. 17a and 17b show schematically two positions of the braking device according to FIG. 16a and FIG. 1fib;
F1G_ 18 is a cross-section through another embodiment of the braking device according to the invention;
FIG. 19 shows a detail of FIG. 18;
FIG. 20 is a side view of an embodiment of a pivoting brake lever;
FIG. 21 is a side view of another embodiment of the pivoting brake lever;
FIGS_ 22a and 22b show 2~ longitudinal section through another embodiment of the braking device according to the invention; and FiG.23 is a perspective view of another embodiment of the braking device according to the invention.
FIG. 1 shows a braking device for an inline roller skate with rollers 4 arranged one after the other on a support 3. The braking device according to the invention will be described in the following only for inline roller skates.
Those skilled in the relevant art, however, will appreciate that the concept of the invention can also be applied to roller skates having two or more rails.
The roller skate typically consists of a shoe part adapted to receive the foot of the roller skater and a shoe leg 2 or shoe neck 2'. This distinction is made to make it clear that for the purpose of the invention a shoe leg 2 (FIG. 2) which is connected to the shoe part ~ in an articulated manner, is bT 39dd NSSI~~ISIS~ W I~~INSH EEZZ7bZZTZ 6E=~Z 666T/ZB/60 YZ9-9~P 98B-a til d EEZd~bZtlZ ~b~91 88-l0-d3S
equivalent to a shoe neck 2' which is flexibly connected to the shoe part 1, as applied to, far example. a so-called "soft boot." The invention can be successfully implemented with both variants- The braking device of the invention can therefore advantageously be used regardless of the shoe type, and no special parts on the shoe part or the shoe leg or shoe neck are required. The inventive braking device may either be connected rigidly to the underside of the shoe part or may be connectable thereto. With a soft boat, the user can walk around wearing the soft flexible shoe and can - if desired -attach the support with the rollers and the inventive braking device to the underside of the shoe, far example, with a suitable binding.
The rollers arranged on the support can be formed of a rigid core covered with rubber or plastic. Alternatively, the rollers can be replaced with wheels having an air tube andlor tires as well as with other variations.
The braking device according to the invention is activated via a pivoting brake lever 11, 12, wherein the pivoting motion is transferred to a brake slide which is movable in the longitudinal direction of the support and acts on one or several of the rollers.
As seen in FIG. 1 and FIG. 2, the pivoting brake fever is formed of an actuating arm 11 and a force application arm 12 which is in a push-type contact with the brake slide 6. The swivel pin 13 of the pivoting brake lever 11, 12 of FIG. 1 and FIG. 2 is arranged on the support 3. The swivel pin, however, may also be disposed on the shoe part 1 of the roller skate and supported in another manner. For example, as shown in FIG. 1, a fork-shaped pivoting support which receives and supports the swivel pin 13 between its legs, is arranged on the rearward portion of the support 3. Gonversely, in the embodiment shown in F1G. 2, the swivel pin 13 is directly supported on the support 3. To provide a symmetric arrangement, the swivel pin 13 extends parallel to the rotation axes 5 of the rollers 4 and may be formed of two or more swivel bearings.
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The push-type contact between the force application arm 12 and the brake slide fi actively moves the brake slide fi only when the shoe leg 2 or the shoe neck 2' is pivoted in a direction opposing the travel direction.
Conversely, the brake slide is released by the restoring springs 9 0 from its braking position when the shoe leg 2 or shoe neck 2' moves with the travel direction. The brake slide 6 is therefore not pulled back from its braking position by the movement of the shoe leg, although this may be a possible embodiment of the invention. The force application arm 12 and the brake slide 6 may also be coupled through an articulated joint, thereby providing an active contact between the force application arm 12 and the brake slide 6 in both rotation directions.
It is important for the operation of the braking device of the invention that the pivoting motion of the shoe leg or the shoe neck is transferred via a duaharm pivoting lever. In this way, the brake force can be precisely adjusted and the contact point of the brake slide can be arranged to have the greatest effect, since the brake slide 6 essentially moves in the plane defined by the rotation axes 5 of the rollers. The brake lever 6 produces the braking action through contact surtaces 7 which act preferably on those surtaces of the rollers 4 that are located between the center and the outer regions of the rollers, as will be described in more detail below.
FIG. 1 and FIG. 2 show two different adjustments which can be implemented with all the described embodiments, In the embodiment illustrated in FIG. 1, the free end of the farce application arm 12 has an adjustment screw 16 with a threaded shaft 43. The threaded shaft 43 can be rotated in a thread provided in the force application arm 12, thereby permitting adjustment of the actuation threshold for the onset of a braking action.
The embodiment of F1G- 2 shows an adjustment feature with an adjustment screw 16 which is supported in the region of the free end of the actuating arm 11. A spring element 17 is arranged a between the adjustment screw 16 and the shoe leg 2 for damping the force exerted by the shoe leg 2.
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The brake slide is formed of a frame 6 with at least one contact surtace 7 located in the region of one or several rollers 4. The contact surface 7 can be brought into contact with the inclined lateral roller surfaces of the rollers proximate to the rolling surface or with brake surfaces, such as brake disks 39, disposed thereon (Fig. Via, 3b, 3G), when the pivoting brake lever is actuated from a release position into a braking position. The frame-like structure of the brake lever 6 is visible in FIG. 7 and in FIG. 11. In a preferred embodiment, the most rearward roller 4 of the roller skate does not have contact surfaces 7, since otherwise many users of conventional roller skates may apply twice the braking force to the most rearward roller. When the shoe leg 2 or the shoe neck 2' are pivoted in a direction opposite to the travel direction, the brake lever 6 is moved by the. pivoting brake lever 11, 12 in the travel direction, so that the contact surfaces 7 are pressed against the corresponding surfaces on the rollers 4, producing a braking action. The braking action is fairly uniform since the brake lever 6 acts on several rollers 4.
The contact surfaces 7 of the rollers 4 for braking may be reinforced by applying elements 39 to their respective sides, thereby preventing abrasion or wear of the rollers_ As seen in FIGS. 3b and 3c, slip-on elements 39 are provided which can be attached to the sides of the rollers and are supported together with the rollers on the rotation axes 5. The slip-on elements 39 have extensions 40 which oppose to the contact surfaces 7 of the brake slide. The extensions 40 can be brought into contact with the contact surfaces by moving the brake slide, thereby providing a braking action without abrading the roller 4 itself. The contact surfaces 7 and the extensions 40 can be serrated to produce a characteristic braking sound and to improve the braking action.
As seen in FIG. 3a, the extensions 40' of the slip-on elements 39 rnay be formed so as to extend perpendicular to the rotation axes 5, wherein the end faces of the extensions operate as opposing surfaces of the contact surfaces 7_ Accordingly, the contact surfaces 7 are arranged so as to extend LI S~Jdd N3SI~2~SI3~ W I.~IN~H EEZZbbZZZZ 6E ~W 666Z/10/60 YZ9-q~P 988-b It d EEZZ~tiZZIZ lY~9l 88-l0-d3S
parallel to the rotation axes 5.
The actuating arm 11 and the force application arm 12 of the embodiments of FIG. 1 and 2 are rigidly connected in the region of the swivel pin 13 of the pivoting brake lever- Both the actuating arm 11 and the force application arm 12 can be formed of several parts which may also be connected with each other in an articulated manner, as long as a lever action is attained when a driving member contacts the brake slide 6 with a push-type action.
In the embodiment according to F1G. 4, the pivoting brake lever has the form of a yoke 11, 12, wherein the swivel pin 13 extends through the side faces of the yoke 11, 12. The yoke 11, 12 is supported by the support pins 13' arranged on both sides of the yoke. The force application arm does not act directly on the brake slide fi, but makes active contact with the movable brake slide 6 through a fork-shaped actuating arm 20 which can be pivoted about the swivel pin 13 of the pivoting brake. The $ctuation threshold for actuating the brake slide 6 can be adjusted by using an adjusting screw 16"', wherein one end of the adjusting screw 16"' makes contact with a transverse rib of the actu2~ting arm 20. The pivoting motion of the force application arm 12 presses with the adjustment screw 16"' the free end of the actuating arm 20, which is formed by the two legs 43, against the movable brake slide 6 or the two frame portions of the brake slide 6 which are in a push-type contact with the legs of the actuating element 20.
FIGS. 5 and 0 illustrate an embodiment wherein the swivel pin 13 is movably retained on the shoe part 1. A support element 35 is provided on the backside of the shoe part 1, which has opposing elongated holes 36 for rotatabfy supporting the swivel pins 13' which can be a screwed into the narrow sides of the pivoting brake fever 11, 12. The swivel pin 13 can now be moved in the elongated holes 36 with the adjustment screw 16"from a position proximate to the shoe part 1 to an opposing, distal positive, so that the response threshold of the braKing device can be adjusted accordingly. In this embodiment, the legs 43 of the force application arm 12 press directly against 8T d9dd NdSI3~I~I3d W J.2~N~H EEZZbbZZZZ 6E :~T 666Z/Z0/60 YZ9-qof 989-b 81 d EEZZ~~ZZIZ 1~~91 BB-l0-d3S
the frame ends of the brake slide 6 when the actuating lever 11 is operated.
FIG. 7 shows an exploded view of a roller support with a braking device according to the invention. The support 3 is assembled from two parts, with two longitudinal grooves 8 for movably supporting the frame of th~a brake slide 6 formed on the inside of each of the parts. The yoke-shaped pivoting brake lever 11, 12 can be pivoted about a support screw 13 which is screwed into the support 3. The actuating arm 20 which has two legs 43 in push-type contact with the frame ends of the brake slide 6, is supported on the same swivel pin 13. The contact surfaces 7 are provided on the respective rearward ends of the spaced-apart openings in the frame in which the rollers are rotatably supported (not shown in FIG. 7). The rotation axes of the rollers extend through the bores 5 provided in both parts of the support 3_ In this embodiment, the brake slide 6 operates only on the forward rollers 4, with no braking action applied to the most rearward roller 4 (not shown).
Also provided is a swivel arm 14' which is arranged on the outside of the braking device according to the invention for rotation to about a swivel pin 15'. A locking head 22"' is non-rotatably connected with the swivel pin 15'.
Two eccentric disks 90 are formed on the locking head 22"'_ When the pivoting lever 1 Q' is actuated, the eccentric disks 90 move the brake slide 6 from its release position into the braking position independent of the pivoting brake arm 11, 12, thereby preventing the rollers (not shown) from rotating. At the same time, the profiled center portion of the locking head 22"' is pushed against the most rearward roller 4 (not shown) to prevent also this toiler from rotating. All the rollers 4 are now locked, thereby significantly facilitating movements which are different from the normal skating motion, such as walking and climbing stairs.
The rollers 4 can also be locked, as shown in FIGS. Sa and 8b, by providing a pivotable eccentric lever 14 with eccentric head 22, wherein the eccentric head 22 of the pivvtable eccentric lever, when rotated into its eccentric position, locks the actuating arm 11 permanently in the braking position of the brake slide fa.
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In the embodiment illustrated in FIGS. 8a and 8b, a dual.-arm actuating arm 2Q, 21 is provided which can pivot about the swivel pin 13 of the pivoting brake lever independent of the force application arm 12 and the first actuating arm 11. The free end of the actuating arm forms a push-type contact with one end of the movable brake slide 6. An adjusting screw 16"' provided on the actuating arm is in active contact with the fflrce application arm 12. The eccentric head 22 of the pivoting eccentric arm 14 is connected to the second free end of the actuating arm 20, wherein the eccentric head 22 of the pivoting eccentric arm 14 - when rotated into the eccentric position - locks the actuating arm 20 permanently in the braking position of the brake slide 6. The eccentric arm 14 is moved into the eccentric position by raising the arm from the position shown in FIGS. 8a and 8b.
FiG. 9 shows a modification of the invention, wherein the eccentric arm 14 presses the actuating arm 20 against the most rearward roller also through a contact surtace 9', so that in the eccentric position the most rearward roller is also locked-According to another embodiment illustrated in FIG. 10, the rollers can be locked by an auxiliary brake slide 9 which is independent of the brake slide 6 and has two wedge-shaped contact surfaces T arranged in a region of the most rearward roller. The brake slide fi as well as the auxiliary brake slide 9 can be moved in a plane with the help of a pivoting lever 14' about a pivotable eccentric wing disk 22' having a pivot axis oriented parallel to the rotation axes 5 of the rollers- The actuating arm 14' has a pressure surface 2~' for' easier operation. When the pivoting levar 14 is in the eccentric position, the contact surfaces 7' of the auxiliary brake slide and the contact surfaces ~
of the brake slide 6 are permanently locked in the braking position, so that all rollers are arrested and the user can walk around without risk. FIG. 11 shows a locking device 32, 30' which has an adjustable position and can be Pocked.
To release the locked position of the swivel arm, the legs 44 have to be pressed together by hand for releasing the lock and returning the swivel arm 0Z 39dd N3SId~13I~d W I~~INdH EEZZbbZZTZ 6E=~T 666T/T0/60 tiZS-qof 9B8-b OZ d EEZZ~bZZIZ lb:9l BB-l0-d3S
to the release position.
!n the embodiments illustrated in F1GS_ 12, 13 and 15, an eccentric wing disk 22', 22" which can be rotated about a pivot axis 15', 15", is arranged between the brake slide 6 and the auxiliary brake slide 9. When pivoting lever 14' is in the eccentric position, the eccentric wing disk 22', 22"
increases the mutual separation between the brake slide E and the auxiliary brake slide 9. Conversely, the mutual separation decreases, when the pivoting lever 14' is in the free position.
The eccentric position of the eccentric wing disk 22' which can be attained by rotating the eccentric wings, is shown in FIG. 12 as a dashed fine_ As seen in FIGS. 13a, b, c, the latching regions are straight when the eccentric wing disk 22' is in its eccentric position. FIG. 13a shows the free position of the eccentric wing disk 22', FIGS. 13b shows a first latching position, and F1G. 13c a second latching position, which define two locking positions specific for different embodiments of rollers (see FIG. 14).
In FIG. 15, the pivot axis of the eccentric wing disk 22" extends perpendicular to the rotation axes 5 of the rollers 4.
In the embodiment according to FIGS. 15a, b, and 17a, b, an adjustment pin 23 with wedge-shaped projections is movably guided between the brake slide 6 and the auxiliary brake slide 9 in a direction perpendicular to the displacement direction of the brake slide 6 and the auxiliary brake slide 9, respectively_ The adjustment pin 23 is connected in an articulated manner with the head 22"' of the eccentric pivoting lever 14'. In the eccentric position of the eccentric pivoting lever 14', the wedge-shaped projections are pressed against diametrically opposed contact surfaces 25 of the brake slide C, and the auxiliary brake slide 9, which are thereby permanently locked in the braking position.
FIG. 17a shows hereby the release position of the eccentric fever 14', whereas FIG. 17b shows the operating (pressed) position, in which both the Z0 3Jdd N3SI3b3I3d W J~bN3H 2~
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brake slide 6 and the auxiliary brake slide 9 are in the locked position. As seen in FIG. 16a, the height of the auxiliary brake slide 9 is offset relative to the height of the brake slide 0, so that the contact surfaces T of the auxiliary brake slide operate on a region of the most rear~nrard roller 4 which is offset from to the respective axes.
Referring now to FIG. 18, a slide member 91 is provided which protrudes to the outside through a side wall of the support 3, as shown in greater detail in FIG. 19. The slide member 91 has two projections which are formed as a double wedge and pressed against diametrically opposing wedge-shaped surtaces of the brake slide 6 and the auxiliary brake slide 9 when the pivoting lever 14"' is rotated. In this way, the rollers 4 can be.focked regardless if the brake is actuated with the pivoting brake lever-FIG. 20 shows a pivoting brake lever adapted to dampen the force exerted by the shoe leg and shoe neck, respectively. The actuating arm is here formed of two parts 1 ~ , 11' which are connected with each other in an articulated manner. The end of one of the members 11' of the actuating arm projects over the pivot point, whereas the end of the extended arm 11 "
contacts an elastic tongue 17 formed on the other end of the extended arm 11. When the actuating arm is pivoted, the tongue 17 is elastically deformed before the force connection between the different parts of the actuating arm is established. This motion dampens the braking action.
As seen in FIG. 21, the actuating arm 11 has along its length a number of spaced-apart recesses 19 which are open at the marginal edge. The recesses 19 provide the actuating arm 11 with elastic properties which dampen the force exerted by the shoe leg and the shoe neck, respectively.
FIG. 22 shows another embodiment of the invention, wherein a slide element 6' is provided with a wedge-shaped end 46 and guided at a height which is offset from the height of the rotation axes of the rollers 4. A brake slide 47 has a profile with contact surfaces T , wherein the profile can be Z0 ~Btld N~SISJ~I3.~ W ~~iNdH 6EZZbbZZZZ 9b :~Z 666Z/T0/69 ~Z~-qoP X88-a ZO d EEZZtitiZZIZ b9~91 88-l0-d3S
moved from a position above the rollers to the inclined lateral braking surfaces of the rollers. When the wedge-shaped surface 4f of the slide element 6' is pressed against the diametrically opposing wedge-shaped surface 46' of the brake slide 47 by rotating the force application arm 12, the contact surtaces y' are pressed from above against the inclined lateral contact surfaces of the rollers 4, thereby causing a corresponding braking action.
In another embodiment of the invention illustrated in FIG. 23, the force application arm 12 press~as a slide element 6' having wedge-shaped end surtaces against wedges 4fi' formed on a brake clasp 48 which extends along the rollers 4 and partially surrounds the upper regions of the rollers 4. The contact surfaces of the brake clasp 48 are thereby pressed from the side against the inGined lateral roller surfaces.
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Claims (14)
1. Roller skate comprising a support (3), a plurality of rollers (4) arranged one after the other, preferably inline, on the support (3), a shoe part (1), a shoe leg (2) or shoe neck (2') which can be pivoted with respect to the shoe park (1), a pivoting brake lever which can be actuated by the shoe leg (2) or the shoe neck (2'), and a bake slide (6) which can be in moved by the pivoting brake lever in a longitudinal direction of the support (3) and acts on one or several of the rollers (6), wherein the support (3) is connected or can be connected with a bottom portion of the shoe part (1) of the roller skates and the pivoting brake fever is formed by at least one first actuating arm (11, 11') and at least one force application arm (12) which is in active contact, preferably a push contact, with the brake slide (6), wherein the swivel pin (13) of the pivoting brake lever is mounted on the support (3) or on the shoe part (1) of the roller skate and the free end of the first actuating arm (11, 11') can be pivoted by moving the shoe leg (2) or shoe neck (2'), and wherein the brake slide (6) can essentially be displaced in a plane formed by the rotation axes (5) of the rollers, characterized in that the swivel pin (13) of the first actuating arm (11, 11', 12) is displaced towards the rear with respect to a plane which extends through the articulated joint operating between the shoe part (1) and the shoe leg (2) and the shoe neck (2'), respectively, and is oriented essentially perpendicular to the longitudinal direction of the support.
2. Roller skate according to claim 1, characterized in that the swivel pin (13) of the pivoting brake lever (11, 11', 12) is formed of two or more swivel bearings.
3. Roller skate according to claim 1 or 2, characterized in that the brake slide (6) is formed of a frame comprising at least one contact surface (7) located in the region of a one or several rollers (4), preferably with the exception of the most rearward roller of the roller skate, wherein upon actuation of the pivoting brake lever from a released position into a braking position, the contact surface (7) can be brought into contact with inclined lateral roller surfaces of the rollers adjacent to the roller tread or with brake surfaces, such as brake disks (39), disposed on the lateral toiler surfaces.
4. Roller skate according to claim 1, 2 or 3, characterized in that the first actuating arm (11) and the force application arm (12) are rigidly connected in the region of the swivel pin (13) of the pivoting brake lever.
5. Braking device according to claim 1 to 4, characterized in that a second actuating arm (20) which can preferably be pivoted about the swivel pin (13) of the pivoting brake lever, is provided independent of the force application arm (12) and the first actuating arm (11), the free end (43) of the second actuating arm (20) contacting the displaceable brake slide (6) and being in active contact with the force application arm (12) through an adjusting element, preferably an adjustments screw (16"'), so that when the force application arm (12) is pivoted, the force application arm (12) urges the free end of the second actuating arm (20) against the movable brake slide (6).
6. Roller skate according to claim 5, characterized in that the force application arm (12) has a length which is approximately half that of the second actuating arm (20).
7. Roller skate according to claims 1 to 4, characterized in that a second actuating arm (20) which can preferably be pivoted to about the swivel pin (13) ref the pivoting brake lever, is provided independent of the force application arm (12) and the first actuating arm (11), the free end (43) of the second actuating arm (20) contacting the displaceable brake slide (6) and being in active contact with the force application arm (12) through an adjusting element, preferably an adjustments screw (16"'), and that an eccentric head (22) of a pivoting eccentric arm (14) is connected to the second free end of the second actuating arm (20), wherein the pivoting eccentric arm (14) by way of its eccentric head (22) locks the force application arm (12) permanently in the braking position of the brake slide (6), when the pivoting eccentric arm (14) is rotated into the eccentric position.
8. Roller skate according to one of the claims 1 to 7, characterized in that the force application arm includes a plurality of spaced apart recesses (19) which are open at a marginal edge and extend along a longitudinal direction of the force application arm.
9. Roller skate according to claim 1, 2 or 3, characterized in that the actuating arm is formed of two members (11, 11') which are connected with each other in an articulated manner, wherein the end of one of the members (11') of the actuating arm extends over the pivot point and contacts with the end of the extended arm (11") an elastic tongue (17) formed on the other end of the member of the actuating arm (11), wherein when the actuating arm (11, 11') is pivoted, the tongue (17) is elastically deformed before the force connection between the members (11, 11') of the actuating arm is established.
10. Roller skate according to one of the preceding claims, characterized in that an auxiliary brake slide (9) which is independent from the brake slide (6) and includes preferably two wedge-shaped contact surfaces, is arranged is a region of the most rearward roller, and that the brake slide (6) as well as the auxiliary brake slide (9) can be moved with a pivoting lever (14), so that when the pivoting lever (14) is in the eccentric position, the contact surfaces of the auxiliary brake slide and the contact surfaces of the brake slide (6) are permanently locked in the braking position.
11. Roller skate according to claim 10, characterized in that the brake slide (6) and the auxiliary slide (9) are arranged to be movable in a plane.
12. Roller skate according to claim 11, characterized in that between the brake slide (6) and the auxiliary brake slide (9) there is arranged an eccentric wing disk (22', 22") which can be rotated about a pivot axis (15', 15") extending preferably parallel to the rotation axes (5) of the rollers, wherein the eccentric wing disk (22', 22"), when in the eccentric position of the pivoting lever (14'), increases the mutual separation between the brake slide (6) and the auxiliary brake slide (9), and when in the free position of the pivoting lever (14'), decreases the mutual separation.
13. Roller skate according to claim 12, characterized in that the eccentric wing disk (22'), in its eccentric position, has straight latching regions (45).
14. Roller skate according to claim 14, characterized in that between the brake slide (fi) and the auxiliary brake slide (9) there is movably guided in a direction perpendicular to the displacement direction of the brake slide (6) and the auxiliary brake slide (9), respectively, an adjustment pin (23) having wedge-shaped projections, and that the adjustment pin (23) is connected in an articulated manner with the head (22"') of the eccentric pivoting lever (14'), wherein in the eccentric position of the eccentric pivoting lever (14') the wedge-shaped projections are pressed against diametrically opposed contact surfaces (25) of the brake slide (6) and the auxiliary brake slide (9) and thereby permanently locked in the braking position.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA399/97 | 1997-03-07 | ||
| AT39997 | 1997-03-07 | ||
| ATA138/98 | 1998-01-28 | ||
| AT13898 | 1998-01-28 | ||
| PCT/AT1998/000059 WO1998040133A2 (en) | 1997-03-07 | 1998-03-09 | Braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2283487A1 true CA2283487A1 (en) | 1998-09-17 |
Family
ID=25591590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002283487A Abandoned CA2283487A1 (en) | 1997-03-07 | 1998-03-09 | Braking device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0964728B1 (en) |
| AU (1) | AU6081298A (en) |
| CA (1) | CA2283487A1 (en) |
| DE (1) | DE59809342D1 (en) |
| WO (1) | WO1998040133A2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1156859A1 (en) | 1999-02-24 | 2001-11-28 | Gaston Haldemann | In-line skate with braking device |
| FR2831070B1 (en) * | 2001-10-22 | 2004-01-30 | Claude Roybon | DEVICES FOR PERFORMING CONFIGURATION CHANGES AND BRAKING OF CONFIGURABLE ROLLER SKATES IN THE RUNNING POSITION |
| US20050136764A1 (en) | 2003-12-18 | 2005-06-23 | Sherman Michael C. | Designed composite degradation for spinal implants |
| EP1776166B1 (en) * | 2004-08-10 | 2008-04-23 | Bertram Burian | Braking device for roller skates |
| NO345988B1 (en) * | 2020-08-28 | 2021-12-13 | Rollerskibrakes As | Brake system for roller skis |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB609453A (en) * | 1946-03-14 | 1948-09-30 | Sonti Venkata Ramaniah | Improvements in or relating to roller skates |
| CH598843A5 (en) * | 1975-08-25 | 1978-05-12 | John Peter Andorsen | |
| US5143387A (en) * | 1991-09-03 | 1992-09-01 | Jeff M. Colla | Roller skate brake assembly having toe actuator within the boot |
| IT1282537B1 (en) * | 1995-05-24 | 1998-03-26 | Narciso Sfoggia | BRAKING DEVICE STRUCTURE, ESPECIALLY FOR SKATES WITH IN-LINE WHEELS |
-
1998
- 1998-03-09 WO PCT/AT1998/000059 patent/WO1998040133A2/en active IP Right Grant
- 1998-03-09 CA CA002283487A patent/CA2283487A1/en not_active Abandoned
- 1998-03-09 AU AU60812/98A patent/AU6081298A/en not_active Abandoned
- 1998-03-09 DE DE59809342T patent/DE59809342D1/en not_active Expired - Fee Related
- 1998-03-09 EP EP98905139A patent/EP0964728B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| WO1998040133A3 (en) | 1998-12-03 |
| DE59809342D1 (en) | 2003-09-25 |
| EP0964728B1 (en) | 2003-08-20 |
| WO1998040133A2 (en) | 1998-09-17 |
| AU6081298A (en) | 1998-09-29 |
| EP0964728A2 (en) | 1999-12-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |