Motor rear cover module, brake and motor

Abstract

The utility model discloses a motor rear cover module, a brake and a motor. The motor rear cover module comprises a motor rear cover, a bottom plate and equal-height columns, and the bottom plate is installed or arranged on the motor rear cover; the equal-height columns are installed on the bottom plate or the motor rear cover, or the equal-height columns are arranged on the bottom plate or the motor rear cover. The brake and the motor rear cover module are simple and compact in structure, and braking can be relieved through small current by controlling the machining precision and the assembling precision of all parts. The motor rear cover module can be integrated, an equal-height column of a brake is omitted, and a boss (equal-height column in the second embodiment) is cast on the motor rear cover to replace the equal-height column of the brake. Meanwhile, a bottom plate which is used for being installed on the motor rear cover and rubs with a brake disc is replaced by a steel part, and the steel part is arranged in the motor rear cover in a casting or die-casting mode, so that the steel part (equivalent to an original bottom plate) and the motor rear cover are combined into a whole. Therefore, the overall weight and the size are obviously reduced, and great advantages are achieved in the aspects of storage and logistics.

Description

TECHNICAL FIELD

[0001] The present application relates to motor technology, in particular to a motor rear cover module, a brake and a motor. BACKGROUND

[0002] In the motor with brake function, a separate brake is generally used to brake the output shaft, and the brake contact is needed when the output shaft needs to output power. Such motors are widely used in products such as scooters and wheelchairs. The structure is mostly to provide a braking force by a spring, and then to remove the brake by an electromagnetic force generated by a coil. However, such products are powered by a battery, and generally driven by 24V direct current. This means that a part of the current needs to be diverted to the coil when driving the output shaft. Since such motors are relatively small in size, the diameter is generally not more than 6cm, and the thickness is generally not more than 5cm, the maximum torque output by the motor is limited, and the current size directly affects the torque output by the motor. Therefore, theoretically, the smaller the current required by the coil, the better. At the same time, in order to ensure the braking effect, the spring needs to provide sufficient braking force, so a compromise needs to be made, that is, to ensure sufficient braking force while using the smallest current to remove the brake.

[0003] However, there is no good solution at present, and the torque output between motors with similar size and weight is not ideal, and the current required to remove the brake is also relatively large. In addition, the volume and weight of the brake with the same performance are relatively large, and it is difficult to continue to be lightweight and small in size, which is also a technical problem to be solved at present. SUMMARY

[0004] In view of the above defects of the prior art, the technical problem to be solved by the present application is to provide a motor rear cover module, a brake and a motor. The motor rear cover module is installed on the brake to cooperate with the brake disc of the brake to brake. The brake is light in weight and small in size.

[0005] To achieve the above-mentioned purpose, the present application provides a motor rear cover module, which comprises a motor rear cover, a bottom plate and an equal-height column. The bottom plate is installed or arranged on the motor rear cover. The equal-height column is installed on the bottom plate or the motor rear cover, or the equal-height column is arranged on the bottom plate or the motor rear cover.

[0006] As a further improvement of the present application, the bottom plate is a steel piece, which is arranged or installed on the motor rear cover.

[0007] As a further improvement of the present application, the motor rear cover is integrally formed by casting or die casting, and the equal-height column is integrally cast or die formed with the motor rear cover. The steel piece is integrally cast or die formed with the motor rear cover by being put into a mold.

[0008] As a further improvement of the present application, a module groove is arranged on the motor rear cover module, and the steel piece is fixed in the module groove.

[0009] As a further improvement of the present application, the inner and outer sides of the steel piece are respectively provided with steel piece protrusions, which are embedded in the motor rear cover mold to realize the integration of the steel piece and the motor rear cover mold.

[0010] As a further improvement of the present application, the contour column is provided with a contour column end face and a contour column side face, the contour column end face is tightly attached to the end face of the brake shell of the brake, and the contour column side face is attached to the outer wall of the brake shell.

[0011] The present application also discloses a brake, which comprises a brake shell, a coil sleeve, an armature disc, an armature, a brake disc, and the above-mentioned motor rear cover mold.

[0012] The inner side of the coil sleeve is provided with the armature, one end of the armature is fixedly assembled with the armature disc after penetrating out of the coil sleeve, and the other end of the armature penetrates out of the brake shell.

[0013] The bottom plate of the motor rear cover mold or the armature plate is provided with the brake disc, the brake disc is directly or indirectly assembled with the output shaft of the motor, and the brake disc can directly or indirectly provide a braking force to the output shaft.

[0014] As a further improvement of the present application, the armature disc is provided with an armature disc groove, the armature disc groove is engaged with and slidably assembled with the contour column of the motor rear cover mold.

[0015] As a further improvement of the present application, the brake disc is provided with a brake disc hole, the brake disc hole is assembled with a transmission block, and the transmission block is fixedly installed or arranged on the output shaft of the motor.

[0016] As a further improvement of the present application, a handle is further included, a spherical body is installed on the brake shell, a limiting pin is fixedly installed, one end of the armature is assembled with the handle after penetrating out of the brake shell, the handle is provided with a limiting groove and a positioning hole, the limiting pin penetrates through the limiting groove, and the positioning hole is assembled with the spherical body.

[0017] The present application also discloses a motor, which comprises the above-mentioned motor rear cover mold or the above-mentioned brake.

[0018] The present application has the following advantages:

[0019] The brake and the motor rear cover mold of the present application are simple and compact in structure, the machining precision and the assembly precision of each component part can be controlled, a smaller current can be used to release the brake, the motor can be ensured to have sufficient current supply, and the motor can have a larger output torque.

[0020] The application discloses a motor rear cover module, a brake, and a motor.

[0021] The motor rear cover module of the application can be integrated, the equal-height column of the brake is cancelled, and a boss (the equal-height column of the second embodiment) is cast on the motor rear cover to replace the equal-height column of the brake. Meanwhile, the bottom plate used for being installed with the motor rear cover and being rubbed with the brake disc is replaced by a steel piece, the steel piece is cast or die-cast in the motor rear cover, and the steel piece (equivalent to the original bottom plate) and the motor rear cover are combined into an integrated whole. Therefore, the overall weight and volume are obviously reduced, and great advantages are achieved in warehousing and logistics. The design makes the overall weight and volume obviously reduced, and great advantages are achieved in warehousing and logistics. Meanwhile, tests show that the motor performance has no obvious difference, so that the performance of the brake and the motor can be ensured to be the same, the overall integration degree is improved, the material consumption and the processing and assembling difficulty are reduced, the production efficiency is improved, the defective product rate is reduced, and the advantages in logistics are improved, the application belongs to the first creation in the industry, a new technical route is created, and the application has high market promotion value.

[0022] In wheelchairs, power-assisted vehicles and other equipment, weight and volume have great influence on product competitiveness. The creative method of integrating the motor rear cover module meets the market requirements of light weight and small size, makes the product have great market competitiveness, and has great market promotion and application prospects and great economic value. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figures 1-2 is a structural schematic view of the brake in the first embodiment.

[0024] Figures 3-4 is an exploded view of parts of the brake;

[0025] Figure 5 is a sectional view of the brake at a center plane where an axis of the armature 140 is located;

[0026] Figure 6 is a sectional view of the brake at a center plane where an axis of the limit pin 111 is located

[0027] Figure 7 is a structural schematic view of the brake installed on the motor 240 in the first embodiment;

[0028] Figures 8-9 is an assembly structural schematic view of the brake and the motor rear cover in the first embodiment;

[0029] Figures 10-12 is a structural schematic diagram of the brake in Example Two.

[0030] Figure 13 is a sectional view of the brake in Example Two at a center plane where the axis of armature 140 is located;

[0031] Figure 14 is a sectional view of the brake in Example Two at another center plane where the axis of armature 140 is located;

[0032] Figures 15-16 is a structural schematic diagram of the brake in Example Two.

[0033] Figures 17-18 is an exploded view of the brake in Example Two.

[0034] Figures 19-20 is a structural schematic diagram of the motor rear cover module 300 in Example Two.

[0035] Figure 21 is a sectional view of the motor in Example Two at a center plane where the axis of output shaft 560 is located;

[0036] Figure 22 is a sectional view of the motor in Example Two at another center plane where the axis of output shaft 560 is located;

[0037] Figures 23-26 is a partial structural schematic diagram of the motor in Example Two. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Example One

[0039] Referring to Figures 1-9 , the motor 240 in the embodiment comprises a brake, a motor rear cover 241, the brake comprises a brake shell 110, a coil sleeve 120, an armature disc 130, an armature 140, a brake disc 150, a bottom plate 160, a handle 190, the spherical body 112 is installed on the brake shell 110 in a spherical rolling manner, the limiting pin 111 is installed and fixed, the mounting sleeve 113 is arranged, the coil sleeve 120 is sleeved outside the mounting sleeve 113, and the coil 220 is wound on the coil sleeve 120, and the coil 220 generates a magnetic field after being electrified.

[0040] The armature 140 is axially slidably installed in the mounting sleeve 113, one end of the armature 140 is assembled and fixed with the armature disc 130 after penetrating out of the mounting sleeve 113, the other end is tightly attached to the gasket 141 after penetrating out of the brake shell 110 and the handle 190, and the handle bolt 142 is assembled with the armature 140 after penetrating through the gasket 141, so that the handle 190 and the armature 140 are axially assembled and cannot move relatively.

[0041] The armature 140 is sleeved with a spring 230 on the part between the inner wall of the brake shell 110 and the armature disc 130, and the spring 230 applies a pushing force to the armature disc 130 away from the mounting sleeve 113.

[0042] The bottom plate 160 is assembled with one end of the equal-height column 170, and specifically, the column body bolt 180 is assembled and fixed with the equal-height column 170 after passing through the bottom plate 160. The end face of the equal-height column 170 is tightly attached to the end face of the brake shell 110, the equal-height column 170 is engaged with and slidably assembled with the armature disc groove 131 provided on the armature disc 130.

[0043] The brake disc 150 is installed between the bottom plate 160 and the armature plate 130, and the brake disc hole 151 is provided on the brake disc 150, which is engaged with, axially slidably assembled with and cannot rotate relative to the transmission block 410 (combined with Figure 11 ) fixedly installed on the output shaft of the motor 240.

[0044] The bottom plate groove 161 is provided on the bottom plate 160, which is used to facilitate the assembly and fixation of the motor rear cover 241 after the screw passes through.

[0045] In the initial state, the coil is not electrified, the spring 230 pushes the armature disc 130 to press against the brake disc 150 by its own elastic force, so as to press the brake disc 150 against the bottom plate 160, and at this time, the brake disc 150 cannot rotate due to the friction to realize braking and braking.

[0046] When the motor is started, the coil is electrified to generate a magnetic field, which drives the armature 140 and the armature disc 130 to move away from the brake disc 150, so as to release the pressing of the brake disc 150, that is, to release the brake, at this time, the motor can drive its output shaft to rotate.

[0047] Preferably, the brake shell 110 is further provided with a micro switch 210, and the trigger end 211 is provided on the micro switch 210, which is located in the switch groove 193 in the initial state, so as not to press the trigger end 211. The two sides of the switch groove 193 are respectively the trigger inclined surface 194, and the switch groove 193 and the trigger inclined surface 194 are provided on the handle 190.

[0048] The handle 190 is also provided with a limiting slot 191 and a positioning hole 192, and the limiting pin 111 passes through the limiting slot 191, thereby limiting the maximum rotation angle of the handle. In the initial state, one end of the ball 112 is clamped into the positioning hole 192, so that the ball 112 does not extrude in the thickness direction of the handle (the direction of the armature shaft), thereby keeping the handle in the initial state without generating an axial pulling force on the armature 140, at this time, it is in the electric state. When it is needed to switch to the manual state, the handle is rotated, the handle extrudes the ball 112, and the ball is moved above the ball under the action of the ball until the limiting pin is tightly attached to one end of the limiting slot 191. In this process, the ball guides the handle to move away from the brake disc in the diameter direction of the armature, so as to drive the armature disc 130 to move away from the brake disc synchronously, thereby releasing the brake state, at this time, the output shaft of the motor can be rotated, thereby triggering the inclined surface 194 to press the trigger end 211, the micro switch 210 is triggered to send a signal to an external control device, and the external control device controls the motor to be powered off to enter the manual state. The external control device is used for receiving and analyzing control instructions and performing parameter operation and program running, and one of an industrial computer, an MCU, a CPU and a PLC can be selected. The control of the motor to be powered off can be realized by connecting a relay in series in the power supply circuit of the motor, and the control end of the relay is connected to the external control device, so as to control the relay to be disconnected by the external control device.

[0049] Referring to Figures 7-9 Preferably, in order to reduce the current required by the coil as much as possible while ensuring the braking effect, in the embodiment, after the equal-height column 170 is installed on the bottom plate through the column bolt 180, the horizontal error of the end face of the three equal-height columns 170 is controlled within 1 silk (the length error of the three equal-height columns is within 1 silk), and the assembly tolerance of the brake shell 110 and the end face of the equal-height column 170, the linear tolerance and the form and position tolerance of the brake disc 150 and the armature plate 130, the bottom plate 160 (the motor rear cover), the outer wall of the equal-height column 170 and the armature disc groove 131, the transmission block and the brake disc hole 151 are all controlled within 1 silk, that is, 0.01mm. In this way, the armature disc 130 and the brake disc 150 can be as much as possible to be horizontally and closely opposite, the moving resistance of the armature disc is small, the displacement of the armature disc 130 moving away from the brake disc 150 can be controlled within 0.08-0.1mm, and only a small amount of pulling of the armature disc 130 away from the brake disc 150 is needed when the brake is released, so the required current is small, the current that can be obtained by the motor is large, and the output torque is also large.

[0050] In the embodiment, the motor rear cover 241, the bottom plate 160 and the equal-height column 170 jointly constitute a motor rear cover module. Embodiment two

[0051] The machining precision of the 1 silk in the first embodiment is very high, and the motor rear cover module is assembled by the motor rear cover 241, the bottom plate 160 and the three parts of the equal-height column 170 respectively after being machined, so it is very difficult to finally achieve the end face level error of the three equal-height columns 170, the machining precision between the equal-height column side and the armature disc groove 131, the brake disc and the bottom plate, and the precision of the fitting tolerance within the 1 silk, because these parts have machining errors and assembly errors after assembly. This process undoubtedly greatly increases the processing amount, reduces the production efficiency, increases the scrap rate, etc.

[0052] Therefore, in the embodiment, the motor rear cover module composed of the motor rear cover 241, the bottom plate 160 and the equal-height column 170 is integrated as one part, so that when machining, only the machining precision of the equal-height column 170 and the steel piece 330 needs to be controlled, thereby greatly reducing the manufacturing difficulty, and the production efficiency is higher, the scrap rate is lower, and at the same time, it is measured that the weight of the motor rear cover module in the first embodiment is 550 grams, and even without the motor rear cover, the overall weight of the brake in the first embodiment is 437 grams; and the weight of the motor rear cover module in the embodiment is 298 grams, which is obviously much lighter than the weight of the first embodiment. This is the excellent effect brought by integrating the motor rear cover module. At the same time, the volume of the embodiment is obviously smaller than that of the first embodiment. The thickness of the integrated motor rear cover module 300 in the embodiment can be adjusted as needed, so the volume can be obviously smaller than that of the brake in the first embodiment. This makes the overall weight and volume of the embodiment significantly smaller than those of the brake in the first embodiment, which has great advantages in warehousing and logistics. At the same time, it is tested that the motor performance of the embodiment has no obvious difference from that of the first embodiment, which makes the embodiment reduce the material, reduce the machining and assembly difficulty, improve the production efficiency, reduce the scrap rate, improve the logistics advantage, while ensuring the same performance of the brake and the motor, improving the overall integration, which is the first in the industry, creating a new technical route, and having high market promotion value. Because in wheelchairs, power-assisted vehicles and other equipment, weight and volume have a great influence on the competitiveness of the products, the improvement of the first embodiment meets the market demand for lightness and miniaturization, so that the product of the embodiment has great market competitiveness, great market promotion and application prospect and great economic value.

[0053] Referring to Figures 10-20 The difference between the embodiment and the first embodiment is that the motor rear cover module 300 is different, and the gasket 141 is not used, and the handle bolt 142 passes through the handle 190 and is assembled with the armature 140, so that the handle 190 cannot move axially relative to the armature 140.

[0054] The motor rear cover module 300 is provided with a module groove 301, a through groove 302, a missing groove 303, and an equal-height column 310. The equal-height column 310 is provided with an equal-height column end face 311 and an equal-height column side face 312. The equal-height column end face 311 is tightly attached to the end face of the brake shell 110, and the equal-height column side face 312 is attached to the outer wall of the brake shell 110, so that the equal-height column has the functions of the first embodiment and also has the function of positioning the outer wall of the brake shell 110.

[0055] The missing groove 303 is used for mounting a wire sleeve 320. Specifically, the wire sleeve 320 is provided with a wire sleeve groove 321 on the side wall, and the wire sleeve groove 321 is assembled at the edge of the missing groove 303. The wire sleeve is used to lead out the wire during use.

[0056] The through groove 302 is used to facilitate the placement of a steel piece 330 during die casting or casting processing. That is, a support table for placing the steel piece 330 is arranged in the mold, and the steel piece 330 is placed on the support table for die casting or casting. After completion, the through groove 302 is formed.

[0057] The steel piece 330 is fixed in the module groove 301. The inner and outer sides of the steel piece 330 are respectively provided with a steel piece protrusion 331 and a steel piece groove 332. The steel piece protrusion 331 is embedded in the 300 by die casting extrusion to realize the fixation and rotation stopping of the steel piece 330 and the motor rear cover module 300. During braking, the armature disc 130 presses the brake disc 150 against the end face of the steel piece 330.

[0058] In this embodiment, the motor rear cover module 300 is generally made of aluminum alloy, and the steel piece is made of steel. The steel piece protrusion 331 and the steel piece groove 332 are processed in advance on the steel piece 330, and then the steel piece 330 is placed in the mold to be integrally cast or die cast to process the motor rear cover module 300 (including the steel piece 330) by a casting process. At this time, the steel piece protrusion 331 is embedded in the motor rear cover module 300 to play a role in fixation and rotation stopping. This design is mainly because the brake disc 150 needs to be pressed tightly with the motor rear cover module 300 for braking during use. There is friction in this process, and aluminum alloy is relatively soft and is consumed too quickly. Therefore, the die-cast steel piece 330 is in the motor rear cover module 300, so as to press the brake disc 150 tightly for braking by using the steel piece 330, and to prolong the service life and provide braking force by using the high strength and wear resistance of steel.

[0059] Of course, the brake disc 150 can also be provided with a brake disc groove 152 on each of the two end faces. The brake disc groove 152 is used to reduce the contact area of the brake disc 150 with the armature disc 130 and the steel piece 330, thereby reducing the processing difficulty under the premise of ensuring the braking performance, because only the contact part needs to be processed and matched in precision. On the other hand, this design is also conducive to introducing airflow into the brake disc 150, thereby accelerating the heat dissipation of the brake disc 150.

[0060] Preferably, the connecting bolt 420 is assembled and fixed with the equal-height column 310 after passing through the brake shell 110, so that the brake shell is assembled and fixed with the motor rear cover module 300.

[0061] Referring to Figures 10-26 , the brake disc hole 151 is assembled with the transmission block 410 in a way that it can axially slide and cannot rotate circumferentially, the transmission block 410 is assembled and fixed on or provided on the output shaft 560, the output shaft 560 passes through the motor 250 and is assembled with or provided with the helical gear 510 on the output shaft 560, the helical gear 510 is in meshing transmission with the large gear 520, the second bevel gear 532 is rotatably installed inside the large gear 520, the second bevel gear 532 is in meshing transmission with two first bevel gears 531 respectively, the two first bevel gears 531 are assembled and fixed with the first axle 540 and the second axle 550 respectively, the first axle 540, the second axle 550 and the motor 250 are all installed in the outer shell 571, the brake is installed in the outer cover 572, and the outer cover 572 is assembled and fixed on the outer shell 571.

[0062] The handle passes through the outer cover 572 and is assembled and fixed with the sealing block 580, the sealing block 580 is attached to the outside of the outer cover 572 to close the outer cover groove provided on the outer cover 572 for rotating the handle 190 to prevent foreign matter from entering the outer cover 572 and causing pollution.

[0063] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the usual meanings understood by the skilled person in the field to which the present application belongs.

[0064] In addition, the terms "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0065] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] In the present application, unless specifically stated and limited otherwise, a first feature "on" or "under" a second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Also, a first feature "over", "above" and "on top of" a second feature can be directly above or obliquely above the second feature, or simply indicate that the first feature is horizontally higher than the second feature. A first feature "under", "below" and "underneath" a second feature can be directly below or obliquely below the second feature, or simply indicate that the first feature is horizontally lower than the second feature.

[0067] The above description is merely the preferred specific embodiments of the present application, and the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed by the present application can be easily conceived by those skilled in the art, and should be encompassed within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A motor back cover module, characterized by: The motor rear cover, the bottom plate, and the equal-height column are provided, and the bottom plate is installed or arranged on the motor rear cover; the equal-height column is installed on the bottom plate or the motor rear cover, or the equal-height column is arranged on the bottom plate or the motor rear cover.

2. The motor back cover module of claim 1, wherein: The bottom plate is a steel piece, which is arranged or installed on the motor rear cover.

3. The motor back cover module of claim 2, wherein: The motor rear cover is integrally formed by casting or die casting, and the equal-height column is integrally formed with the motor rear cover by casting or die casting; the steel piece is integrally formed with the motor rear cover by casting or die casting.

4. The motor back cover module of claim 2 or 3, wherein: The motor rear cover module is provided with a module groove, and the steel piece is fixed in the module groove.

5. The motor back cover module of claim 2 or 3, wherein: The inner and outer sides of the steel piece are respectively provided with steel piece protrusions, which are embedded in the motor rear cover module to realize the integration of the steel piece and the motor rear cover module.

6. The motor back cover module of claim 2 or 3, wherein: The equal-height column is provided with an equal-height column end face and an equal-height column side face, and the equal-height column end face is tightly attached to the end face of the brake shell, and the equal-height column side face is attached to the outer wall of the brake shell.

7. A brake characterized by: The brake shell, the coil sleeve, the armature disc, the armature, the brake disc, and the motor rear cover module of any one of claims 1-6 are provided, the coil sleeve is installed in the brake shell, and a coil is wound on the coil sleeve; The armature is installed on the inner side of the coil sleeve, one end of the armature passes through the coil sleeve and is assembled and fixed with the armature disc, the other end of the armature passes through the brake shell, and the armature is sleeved with a spring on the part between the inner wall of the brake shell and the armature disc; The brake disc is installed between the bottom plate or the steel piece of the motor rear cover module and the armature plate, and the brake disc is directly or indirectly assembled with the output shaft of the motor, and the brake disc can directly or indirectly provide a braking force to the output shaft.

8. The brake of claim 7 wherein: The armature disc is provided with an armature disc groove, and the armature disc groove is engaged with and slidably assembled with the equal-height column of the motor rear cover module.

9. The brake of claim 7 or 8, wherein: The brake disc is provided with a brake disc hole, and the brake disc hole is assembled with a transmission block, and the transmission block is installed and fixed or arranged on the output shaft of the motor.

10. The brake of claim 9 wherein: The brake shell is further provided with a ball, a limiting pin is installed and fixed, and one end of the armature passes through the brake shell and is assembled with the handle; the handle is provided with a limiting groove and a positioning hole, the limiting pin passes through the limiting groove, and the positioning hole can be assembled with the ball.

11. An electric machine characterized by: The motor rear cover module of any one of claims 1-6 or the brake of any one of claims 7-10 is contained.

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