• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A vehicle cleaning apparatus includes a nozzle (4) configured to eject fluid to an object to be cleaned; a cover (3) configured to cover at least a portion of the nozzle (4); a valve (16) configured to open and close a fluid channel; and a carrier (2) comprising a valve arrangement portion (5) in which at least a portion of the valve (16) is disposed, and a lid attachment portion (6) to which the lid (3) is attached . The lid attachment portion (6) is integrally formed with the valve disposition portion (5).
    公开号:FR3071208A1
    申请号:FR1858402
    申请日:2018-09-18
    公开日:2019-03-22
    发明作者:Hiroaki Kimura；Masaru Sakai
    申请人:Koito Manufacturing Co Ltd；
    IPC主号:
    专利说明:

    BACKGROUND OF THE INVENTION
    1. Field of the invention [0001] The invention relates to a vehicle cleaning device which cleans an object to be cleaned by ejecting fluid from a nozzle towards the object to be cleaned.
    2. Description of the Related Art [0002] For example, there is a vehicle cleaning device which partially protrudes outside from an opening provided in a vehicle body or a bumper, and ejects fluid from a nozzle for cleaning an object to be cleaned such as a vehicle lamp, camera or speed camera.
    An example of the vehicle cleaning apparatus includes a nozzle which is provided on a distal side and ejects fluid; a valve arrangement member in which a valve is disposed in a fluid channel; and a fastener to which a cover is attached, the cover being adapted to open and close an opening of a bumper or the like (for example, see Japanese Patent Application Publication 2009-83714 (JP 2009-83714 A )). In document JP 2009-83714 A, the valve arrangement element is described as being a "nozzle part" and the fixing element is described as being a "support".
    In such a vehicle cleaning device, when the fluid is supplied to the channel, the valve is actuated to open the channel, and the fluid flows to the nozzle and is ejected from the nozzle.
    SUMMARY OF THE INVENTION The vehicle cleaning device described in document JP 2009-83714 A comprises the nozzle part in which the valve is arranged, the support which is coupled to the nozzle part and to which the cover is closed and similar. Thus, the vehicle cleaning apparatus has a large number of components. Therefore, it is difficult to reduce the size of the vehicle cleaner. In addition, the labor required to assemble the components may increase.
    The invention provides a vehicle cleaning device which reduces the number of components and simplify its structure.
    One aspect of the invention relates to a vehicle cleaning device comprising a nozzle configured to eject fluid towards an object to be cleaned; a cover configured to cover at least a portion of the nozzle; a valve configured to open and close a fluid channel; and a holder comprising a valve arrangement part in which at least a part of the valve is disposed, and a cover fixing part to which the cover is fixed. The cover fixing part is integrally formed with the valve arrangement part.
    With the configuration described above, in the support, the valve arrangement part, in which the valve is arranged, and the cover fixing part to which the cover is fixed, are formed integrally.
    The vehicle cleaning apparatus according to the aspect described above, may further comprise a piston which is movable in an axial direction relative to a cylinder and in which the fluid flows. The holder may further include a piston coupling portion which is coupled to the piston; and the valve arrangement part and the piston coupling part can be integrally formed.
    With the configuration described above, a dedicated element in which the valve is arranged and a dedicated element which is coupled to the piston are unnecessary.
    In the aspect described above, the support can further comprise a nozzle support part configured to hold the nozzle; the valve arrangement part and the piston coupling part can be provided to be continuous with respect to each other in the axial direction; and the nozzle support portion can project from the valve arrangement portion in a direction different from the axial direction.
    With the configuration described above, the direction in which the nozzle support part projects, is different from the axial direction in which the valve device part and the piston coupling part are continuous one compared to each other.
    In the aspect described above, there is provided a plurality of nozzle support parts and a plurality of nozzles; and the plurality of nozzle support portions can project from the valve device portion to opposite sides in a direction orthogonal to the axial direction.
    With the configuration described above, since the plurality of nozzles is provided, the fluid can be ejected to a wide area.
    In the aspect described above, part of the valve can be arranged in the piston coupling part.
    With the configuration described above, the valve is arranged to extend from the valve arrangement part to the piston coupling part (in other words, part of the valve is disposed in the valve arrangement portion, and another portion of the valve is disposed in the piston coupling portion).
    In the aspect described above, the air flow hole can be provided, and the outside air can be taken from the support by the air flow hole to cause the valve to operate ; and the air flow hole can be covered by the cover.
    With the configuration described above, the dust and moisture which move towards the air flow hole can be blocked by the cover.
    According to the above aspect of the invention, since the valve arrangement part, in which the valve is arranged, and the cover fixing part to which the cover is fixed, are formed so integral with the support, a dedicated element to which the cover is fixed and a dedicated element in which the valve is arranged, are unnecessary. Therefore, the number of components can be reduced, and the structure can be simplified.
    BRIEF DESCRIPTION OF THE DRAWINGS The characteristics, advantages and technical and industrial significance of the exemplary embodiments of the invention are described above with reference to the accompanying drawings, in which the same reference numbers designate the same elements , and in which:
    Figure 1 shows a vehicle cleaning apparatus according to an embodiment of the invention in conjunction with Figures 2 to 5, and 20 is a perspective view of the vehicle cleaning apparatus;
    Figure 2 is a vertical sectional view of the vehicle cleaning apparatus in a state in which an opening of the bumper is closed by a cover;
    Figure 3 is a horizontal sectional view showing a state in which a channel is closed by a valve;
    Fig. 4 is a perspective view showing a state in which a piston is moved forward; and Figure 5 is a horizontal sectional view showing a state in which the valve is moved to open the channel.
    DETAILED DESCRIPTION OF THE EMBODIMENTS A vehicle cleaning device according to an embodiment of the invention is described with reference to the accompanying drawings (see FIGS. 1 to 5). It should be noted that the vehicle cleaning apparatus described below can be widely applied to vehicle cleaning apparatuses used for cleaning parts provided in a vehicle such as a vehicle body, a window and a rear view mirror, in addition to a vehicle lamp, camera and speed camera.
    The vehicle cleaning apparatus described below 40 includes a piston and a cylinder and is configured so that the piston moves relative to the cylinder. In the following description, a direction of movement of the piston is determined to be the front-rear direction, and therefore the front-rear direction, a top-to-bottom direction and a right-to-left direction are described on the basis the direction of movement of the piston. It should be noted that the front-rear direction, the direction from top to bottom and the direction from right to left are described for the sake of convenience, and the directions are not limited thereto when the invention is implemented.
    A vehicle cleaning device 1 comprises a support 2, a cover 3 and nozzles 4 (see Figures 1 to 3).
    The support 2 comprises a portion of substantially cylindrical valve arrangement 5 whose axial direction extends in the front-rear direction; a cover fixing part 6 which is continuous with a front end of the valve arrangement part 5; a piston coupling part 7 which is continuous with a rear end of the valve arrangement part 5; and nozzle support portions 8 which project to opposite sides of the valve arrangement portion
    5.
    A curved surface 5a is formed in a position close to a rear end in an internal part of the valve arrangement part 5. The curved surface 5a extends (curves) inwards in a direction to a rear side. A trailing edge of the curved surface 5a in the valve arrangement part 5 is formed to define an opening 5b. In an internal space of the valve arrangement part 5, a part positioned behind the opening 5b is formed in the form of an insertion space 5c having a constant diameter.
    The cover fixing part 6 is formed to have a substantially cylindrical shape, and an axial direction of the cover fixing part 6 extends in the front-rear direction. A diameter of the cover fixing part 6 is slightly larger than the diameter of the front end of the valve arrangement part 5. The cover fixing part 6 is continuous with an outer peripheral surface of the front end from the valve arrangement part 5 and protrudes forward from the valve arrangement part 5. The valve arrangement part 5 and the cover fixing part 6 are integrally formed (in d in other words, the valve arrangement part 5 is integral with the cover fixing part 6).
    A fixing engagement part 6a which projects upwards is provided on an upper end of the cover fixing part 6. On each of the right and left ends of the cover fixing part 6, a positioning engagement portion 6b which projects to a right side or a left side is provided.
    The piston coupling part 7 is formed to have a substantially cylindrical shape, and an axial direction of the piston coupling part 7 extends in the front-rear direction. The piston coupling part 7 projects rearwards from a rear end of the valve arrangement part 5. The piston coupling part 7 is integrally formed with the valve arrangement part 5. Thus, in the support 2, the valve arrangement part 5, the cover fixing part 6 and the piston coupling part 7 are integrally formed.
    The nozzle support parts 8 project respectively towards the right side and the left side from a substantially rear half-part of the valve arrangement part 5. Each of the nozzle support parts 8 is a element formed separately from the valve arrangement part 5. However, the nozzle support parts can be integrally formed with the valve arrangement part 5.
    The nozzles 4 are respectively held at the distal ends of the nozzle support parts 8. Each nozzle 4 can be fixed on the corresponding nozzle support part 8 or can be supported, in rotation, by the nozzle support part 8 corresponding.
    The cover 3 comprises a cover surface part 9, protective parts 10, positioning parts 11 and an engagement part 12 (see Figures 2 to 4). The cover surface portion 9 is formed to have a plate shape which is oriented substantially in the front - rear direction. The protective parts 10 protrude rearward from the positions near the right and left ends of the cover surface part 9, respectively. The positioning portions 11 protrude rearward from the cover surface portion 9 and are positioned spaced apart from each other in the right-left direction. Each of the positioning parts 11 is positioned towards the front of a corresponding part of the protective parts 10. The positioning parts 11 have respective cut-out parts 11a which are open towards the rear side and towards the right sides and left. The engagement portion 12 protrudes rearward from a position near an upper end of the cover surface portion and has an engagement hole 12a which extends through the portion engagement 12 in the direction from top to bottom.
    The cover 3 is fixed to the cover fixing part 6 in a state in which the positioning engagement parts 6b of the cover fixing part 6 are respectively inserted in the cut-out insertion parts 11a. positioning portions 11 and the attachment engagement portion 6a of the cover attachment portion 6 is engaged with an opening edge defining the engagement hole 12a in the engagement portion 12.
    A cap 13 which closes a front opening of the valve arrangement part 5 is fixed on an internal peripheral surface of the cover fixing part 6. The cap 13 is provided with a closure part substantially in the form of a disc. 14; and a spring support portion 15 which projects in the front-rear direction of a central portion of the closure portion 14. The closure portion 14 has air flow holes 14a each of which extends through the closing part 14 in the front - rear direction. The cap 13 is fixed to the support 2 in a state in which the closing part 14 closes the front opening of the valve arrangement part
    5.
    A valve 16 is arranged in the support 2. The valve 16 is formed with an elastically deformable material such as rubber. The valve 16 is elastically deformable. The valve 16 is disposed in the valve arrangement portion 5, except for a rear end of the valve 16, and the rear end of the valve 16 is disposed in the piston coupling portion 7. However, the entire valve 16 can be arranged in the valve arrangement part 5.
    The valve 16 includes an opening - closing part 17 which extends in the front - rear direction; a projecting part 18 which projects rearwards from the opening - closing part 17; and a fixed part in the form of a flange 19 which projects outwards from a front end of the opening - closing part 17. An external peripheral surface of a rear end of the opening - closing part 17 is formed as a pressing surface 17a which is a curved surface projecting backwards. The pressure surface 17a has substantially the same curvature as that of the curved part 5a of the valve arrangement part 5. The closing opening part 17 has an arrangement space 17b which is open towards the front. A front edge of the projecting part 18 corresponds to a rear edge of the pressure surface 17a, and a diameter of the projecting part 18 is less than a maximum diameter of the opening - closing part 17.
    The valve 16 is arranged in the support 2 so that an outer periphery of the fixed part 19 is held between a front end surface of the valve arrangement part 5 and the closing part 14 of the cap 13 in the front - rear direction. In the valve 16, the fixed part 19 is elastically deformable in a direction in which the opening - closing part 17 and the projecting part 18 move in the front - rear direction (i.e. in the direction axial).
    The valve 16 is pushed by a push spring 20 in a direction in which the pressure surface 17a is pressed against the curved surface 5a of the valve arrangement part 5. The push spring 20 is for example a spring helical compression, and is inserted into the arrangement space 17b of the valve 16, except for a front end of the thrust spring 20. The spring support part 15 of the cap 13 is inserted into the thrust spring 20 and at the both the front and rear ends of the push spring 20 are pressed against the closure portion 14 of the cap 13 and the valve 16, respectively.
    In a state in which a forward displacement force is not applied to the valve 16, the pressure surface 17a is compressed against the curved surface 5a, the opening 5b is closed by the part of opening - closing 17, and the entire projecting part 18 is inserted into the insertion space 5c.
    In a state in which the valve 16 is arranged in the support 2, an internal space of the support 2, which is positioned behind the opening - closing part 17 of the valve 16, is determined to be a first channel 2a , and the internal space of the support 2, which is positioned behind the fixed part 19 of the valve 16 and in front of the first channel 2a, is determined to be a second channel 2b.
    The piston coupling part 7 of the support 2 is coupled to a piston 21. A front end of the piston 21 is provided as a cylindrical coupling part 21a. The piston coupling part 7 of the support 2 is coupled to the cylindrical coupling part 21a.
    The piston 21 is supported by a cylinder 22 so that the piston 21 is movable in the front - rear direction (that is to say in an axial direction of the piston 21) (see Figure 1). A spring element not shown, for example, a tension helical spring is disposed in the piston 21. One end of the spring element is supported by the piston 21 and its other end is supported by the cylinder 22. Thus, a thrust force in a direction in which the piston 21 is pulled into the cylinder 22 is applied to the piston 21 by the spring element. In a state in which the fluid is not brought inside the piston 21, the piston 21 is positioned at a rear end of a range of motion.
    A rear end of the cylinder 22 is provided in the form of a coupling portion of the supply pipe 22a. A supply pipe 50 is coupled to the supply pipe coupling portion 22a. The fluid is supplied to the supply pipe 50 from a supply tank, and the supplied fluid flows to the nozzles 4 from the internal space of the piston 21 via the first channel 2a and the second channel 2b of the support 2.
    In the vehicle cleaning device 1, in a state in which the cover 3 is fixed to the cover fixing part 6 of the support 2 and the piston 21 is positioned at the rear end of the range movement relative to the cylinder 22, the cover surface portion 9 of the cover 3 is positioned to close an opening 100a formed in a bumper 100 or the like (see Figure 2 and ia Figure 3).
    In addition, in the state in which the cover 3 is fixed to the cover fixing part 6, the air flow holes 14a formed in the cap 13 are covered by the cover surface part 9 from the front side. In the vehicle cleaning apparatus 1 which is configured as described above, when the fluid is supplied from the supply tank inside the piston 21, via the supply pipe 50, the fluid flows to the valve 16. Then, due to a pressure of the fluid, the piston 21, the support 2 and the cover 3 move integrally in one direction in order to project from the cylinder 22 (in other words, the piston 21, the support 2 and the cover 3 move together forward) against the pushing force of the spring element. The piston 21 moves towards a front end of the range of movement, and the nozzles 4 of the support 2 are positioned at the front of the bumper 100 (see FIG. 4).
    At this time, the outside air is taken through the air flow holes 14a of the cap 13 in a space in front of the valve 16 in the support 2. Since the fluid flows towards the valve 16, a pressure (an internal pressure) in the first channel 2a becomes greater than atmospheric pressure. Consequently, the fixed part 19 of the valve 16 is elastically deformed, and the valve 16 moves forward against the thrust force of the thrust spring 20 (see FIG. 5). Then, the pressure surface 17a of the opening - closing part 17 moves away from the curved surface 5a of the support 2, and thus the opening 5b is opened. The fluid flows through the opening 5b and the second channel 2b of the first channel 2a and then flows to the nozzles 4. At this time, the fluid flows to the nozzles 4 along a external peripheral part of the valve 16.
    As described above, in the vehicle cleaning device 1, the thrust spring 20 is provided in the interior of the valve 16, and the fluid flows in an area outside the valve 16. Thus, the flow of the fluid is not hampered by the thrust spring 20, and thus, it is possible to guarantee a smooth flow of the fluid.
    The fluid, which has flowed to the nozzles 4, flows into the discharge spaces 4a, and is ejected from the discharge orifices 4b towards an object to be cleaned such as a vehicle lamp. Thus, the object is cleaned by the ejected fluid. When the supply of the fluid from the supply tank is stopped, the internal pressure in the support 2 is lowered, the valve 16 and the thrust spring 20 resiliently return to their original state, the pressure surface 17a of the closing opening part 17 is compressed against the curved surface 5a of the support 2, and the ejection of the fluid from the nozzles 4 is stopped. Then, since the fluid pressure is lowered, the spring element is compressed, the piston 21 moves towards the rear end of the range of motion, i.e. the piston moves in the direction in which the piston 21 is pulled into the cylinder 22 and the cover surface portion 9 of the cover 3 closes the opening 100a formed in the bumper 100 (see Figure 2 and Figure 3).
    In the vehicle cleaning apparatus 1, there is a housing where the fluid remains in each of the spaces from the nozzles 4 to the valve 16. Therefore, in a cold region or the like, the residual fluid can be dilated, for example when the residual fluid is frozen. When the fluid is expanded, a pressure (that is to say the internal pressure) in each of the spaces going from the nozzles 4 to the valve 16, becomes greater than the atmospheric pressure, the valve 16 moves forward against the pushing force of the pushing spring 20 (see Figure 5), and the opening 5b is open. This allows the fluid to flow towards the rear end of the valve 16.
    When the fluid is expanded, as described above, the opening 5b is open so that the fluid is allowed to flow towards the rear end of the valve 16. Thus, the pressure which is applied to each of the parts in the valve 16 and the support 2 is lowered, and therefore damage or fracture of the valve 16 or of the support 2 does not occur.
    When the fluid has thawed and the pressure in each of the spaces from the nozzles 4 to the valve 16 is lowered, the fixed part 19 and the thrust spring 20 resiliently return to the original state, and the surface pressure 17a of the opening - closing part 17 returns to the original state in which the pressure surface 17a is compressed against the curved surface 5a of the support 2 (see FIG. 2 and FIG. 3).
    As has been described so far, the vehicle cleaning device 1 comprises the support 2. The support 2 comprises the valve arrangement part 5 in which at least part of the valve 16 is arranged, and the cover fixing part 6 to which the cover 3 is fixed. The cover fixing part 6 is integrally formed with the valve arrangement part 5 (in other words, the cover fixing part 6 is integral with the valve arrangement part 5).
    Thus, since the valve arrangement part 5, in which the valve 16 is arranged and that the cover fixing part 6 to which the cover 3 is fixed, are integrally formed in the support 2, a dedicated element to which the cover 3 is fixed and a dedicated element in which the valve 16 is arranged are unnecessary. Therefore, the number of components can be reduced, and the structure can be simplified.
    In addition, the support 2 further comprises the piston coupling part 7 which is coupled to the piston 21. The valve arrangement part 5 and the piston coupling part 7 are integrally formed (in d ' in other words, the valve arrangement part 5 is integral with the piston coupling part 7).
    Thus, a dedicated element to which the cover 3 is fixed, a dedicated element in which the valve 16 is arranged, and a dedicated element which is coupled to the piston 21, are unnecessary. Therefore, the number of components can be further reduced, and the structure can be further simplified.
    In addition, the support 2 comprises the nozzle support parts 8 which hold the nozzles 4, the valve arrangement part 5 and the piston coupling part 7 are provided to be continuous with respect to the other, in an axial direction (the front rear direction), and the nozzle support parts 8 protrude from the valve arrangement part 5 in the direction different from the axial direction.
    Thus, the direction in which the nozzle support parts 8 protrude is different from the axial direction in which the valve arrangement part 5 and the piston coupling part 7 are continuous with respect to the 'other. Therefore, the size of the vehicle cleaning apparatus 1 in the axial direction can be reduced.
    In addition, the plurality of nozzle support portions 8 and the plurality of nozzles 4 are provided, and the plurality of nozzle support portions 8 projects from the valve arrangement portion 5 to opposite sides in a direction orthogonal to the axial direction.
    Thus, since the plurality of nozzles 4 are provided, the fluid can be ejected towards a wide area. Therefore, the cleaning performance of the vehicle cleaning apparatus 1 can be improved while the size of the vehicle cleaning apparatus 1 in the axial direction can be reduced.
    In the vehicle cleaning device 1, part of the valve 16 is arranged in the piston coupling part 7.
    Thus, the valve 16 is arranged to extend from the valve arrangement part 5 to the piston coupling part 7 (in other words, part of the valve 16 is arranged in the valve arrangement part 5 and another part of the valve 16 is arranged in the piston coupling part 7). Therefore, the size of the valve arrangement part 5 in the axial direction can be reduced and therefore the size of the vehicle cleaning apparatus 1 in the axial direction can be further reduced.
    In addition, the air flow holes 14a, which are formed in the cap 13, are covered by the cover 3. Consequently, the dust and moisture which move towards the flow holes d the air 14a can be blocked by the cover 3 and the entry of dust and moisture into the support 2 can be prevented while an appropriate operating state of the valve 16 is guaranteed.
    权利要求:
    Claims (8)
    [1" id="c-fr-0001]
    1. Vehicle cleaning device characterized in that it comprises:
    a nozzle (4) configured to eject fluid towards an object to be cleaned;
    a cover (3) configured to cover at least a portion of the nozzle (4);
    a valve (16) configured to open and close a fluid channel; and a support (2) comprising a valve arrangement part (5) in which at least a part of the valve (16) is disposed, and a cover fixing part (6) to which the cover (3) is fixed, in which :
    the cover fixing part (6) is integrally formed with the valve arrangement part (5).
    [2" id="c-fr-0002]
    2. Vehicle cleaning device according to claim 1, characterized in that it further comprises:
    a piston (21) which is movable in an axial direction relative to a cylinder (22) and in which the fluid flows, in which:
    the holder (2) further comprises a piston coupling part (7) which is coupled to the piston (21); and the valve arrangement part (5) and the piston coupling part (7) are integrally formed.
    [3" id="c-fr-0003]
    3. Vehicle cleaning apparatus according to claim 2, in which:
    the support (2) further comprises a nozzle support portion (8) configured to hold the nozzle (4);
    the valve arrangement part (5) and the piston coupling part (7) are provided to be continuous with respect to each other in the axial direction; and the nozzle support part (8) projects from the valve arrangement part (5) in a direction different from the axial direction.
    [4" id="c-fr-0004]
    4. Vehicle cleaning apparatus according to claim 3, in which:
    a plurality of nozzle support portions (8) and a plurality of nozzles (4) are provided; and the plurality of nozzle support portions (8) protrude from the valve arrangement portion (5) to opposite sides in a direction orthogonal to the axial direction.
    [5" id="c-fr-0005]
    5. A vehicle cleaning apparatus according to claim 2, 3 or 4, wherein a part of the valve (16) is disposed in the piston coupling part (7).
    5
    [6" id="c-fr-0006]
    6. Vehicle cleaning device according to claim 1, 2,
    3, 4 or 5, in which:
    an air flow hole is provided, and the outside air is taken into the support (2) through the air flow hole to cause the valve (16) to operate; and
    10 the air flow hole is covered by the cover (3).
    [7" id="c-fr-0007]
    7. Vehicle cleaning apparatus according to claim 6, in which:
    a cap (13) which closes an opening of the valve arrangement part (5), is fixed on an inner peripheral surface of the cover fixing part (6); and the air flow hole is provided in the cap (13).
    [8" id="c-fr-0008]
    8. A vehicle cleaning apparatus according to claim 1, wherein the valve (16) is elastically deformable.
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    同族专利:
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    CN208827781U9|2019-06-21|
    CN109515388A|2019-03-26|
    JP2019051893A|2019-04-04|
    DE102018215915A1|2019-03-21|
    US20190084530A1|2019-03-21|
    CN208827781U|2019-05-07|
    FR3071208B1|2021-07-16|
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    法律状态:
    2019-08-15| PLFP| Fee payment|Year of fee payment: 2 |
    2020-06-19| PLSC| Search report ready|Effective date: 20200619 |
    2020-08-12| PLFP| Fee payment|Year of fee payment: 3 |
    2021-08-12| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2017178865|2017-09-19|
    JP2017178865A|JP2019051893A|2017-09-19|2017-09-19|Vehicle cleaning device|
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