JP2019085078A - Wheel fan, wheel fan assembly kit and formation method of wheel fan - Google Patents

Abstract

To provide a wheel attachment hub, and a wheel hub which allows a user to easily set a format and dimension according to a format and dimension of a tire wheel attached to the wheel attachment hub.SOLUTION: There is provided a wheel fan 3 provided in a tire wheel 1 of a vehicle. The wheel fan comprises a plate-shaped member folded into a prescribed shape, the plate-shaped member comprises: an attachment plate part 3a which has a center hole, which is fixed between a wheel attachment hub 2 and the tire wheel, and has an outer peripheral part which is set to a prescribed radius from a wheel shaft center; plural blade parts which are provided on the outer peripheral part at a prescribed angle interval, and erect from the outer peripheral part to a wheel shaft direction at a prescribed angle; and a folding part which is provided between the outer peripheral part and each blade part and erects the blade part. A peripheral width of the blade part is set to become larger than a peripheral width of the folding part, each blade part is inclined to a conical surface including a base end part of the blade part at a prescribed angle toward outside or inside of the conical surface.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wheel fan, a wheel fan assembly kit, a method of assembling a wheel fan, and the like. More specifically, the present invention relates to a wheel fan which can provide a required form easily and inexpensively according to the form and dimensions of a wheel mounting hub and a tire wheel, and can exhibit a required effect.

  In many cases, a brake disc is provided on the outer periphery or axially inward of the wheel mounting hub. Since the brake disc generates a braking force by the brake caliper, the temperature of the brake disc becomes high due to frictional heat, which adversely affects the tires and the like through the tire wheel. In addition, when the temperature of the brake device and the vicinity thereof becomes high, the braking force represented by the paper lock phenomenon and the fading phenomenon is reduced. For this reason, a wheel fan may be provided inside the tire wheel or near the wheel mounting hub for the purpose of cooling the brake disc and the brake caliper. The wheel fan rotates with the wheel to take in air from the outside of the tire wheel to flow and cool the brake disk and the brake caliper. In addition, the effect of removing brake dust can also be expected.

  Airflow trends in the vicinity of the running tire wheel affect the aerodynamic characteristics of the entire vehicle. That is, by changing the flow amount and direction of the air inside and outside the wheel, the traveling characteristics and the like may change significantly. Although the change in the driving characteristics has not been sufficiently clarified, for example, it is known that steering stability and fuel consumption change.

  Since the wheel fan is to change the air flow in the vicinity of the tire wheel, it is considered that the traveling characteristic is also changed by providing the wheel fan.

JP, 2005-96526, A

  Usually, a brake disc and a brake caliper are disposed in the inner space of the tire wheel, so the space for providing a wheel fan is very limited. In addition, the form and dimensions of the wheel mounting hub and the connection portion of the tire wheel greatly differ depending on the wheel mounting hub, the tire wheel, and the like. For this reason, it is difficult to apply a wheel fan of a certain form size to various vehicles.

  Moreover, although it is clear that a brake disk etc. are cooled as an effect of providing a wheel fan, it is not fully clarified about the effect regarding the aerodynamic characteristics mentioned above.

  In particular, when the wheel fan generates an air flow from the axially outer side of the hub shaft toward the inner side of the tire wheel and when the air flow from the inside of the tire wheel toward the axially outer side of the hub shaft is generated, It is known that the effects on the aerodynamic characteristics are greatly different. However, as described above, the above-mentioned effects are not sufficiently clarified, and it is considered that the above-mentioned effects are largely different depending on the form of the vehicle body, the tire wheel and the like. For this reason, an effect that a driver does not want may appear. Therefore, in order to obtain a wheel fan capable of exerting a desired effect, it is desirable to set the direction in which the air flow is directed or the like according to the form of the vehicle or the tire wheel.

  However, as described above, the form dimensions of the wheel mounting hub and the tire wheel are various, and it is very difficult to provide a wheel fan according to these form dimensions. In addition, although it is possible to configure a wheel fan according to the shape of the wheel or the vehicle, a large manufacturing cost is required.

  The present invention has been devised to solve the above-mentioned problems, and the user can easily set the form size in accordance with the form size of the wheel mounting hub and the tire wheel mounted thereto. An object of the present invention is to provide a wheel fan that can exhibit desired effects.

  A wheel fan according to the present invention is provided in a tire wheel of an automobile. It is not necessary for all of the wheel fans to be accommodated in the space in the tire wheel, and it also includes the case where a part protrudes axially outward or inward from the internal space of the tire wheel. The wheel fan is configured to include a plate-like member bent into a predetermined shape. Although the kind of said plate-shaped member is not specifically limited, It is desirable to comprise from the metal material which has the thickness which can be easily bent with pliers etc. For example, a plate-like material having a thickness in a predetermined range formed of an aluminum alloy, iron, stainless steel or the like can be used. Moreover, it can also be comprised from the heat resistant resin material. For example, a thermosetting resin plate such as a carbon fiber reinforced resin before heat treatment may be formed into a predetermined form according to the form of a tire wheel or the like, and then heat treated to be cured. The wheel fan has a center hole, is fixed between the wheel mounting hub and the tire wheel, and is provided with a mounting plate portion having an outer peripheral portion set at a predetermined radius from the wheel axis. The outer peripheral portion is provided at a predetermined angular interval, and is provided with a plurality of blade portions rising from the outer peripheral portion at a predetermined angle in the wheel axial direction. Between the outer peripheral portion and the blade portion, a bent portion for causing the blade portion to rise is provided. The circumferential width of the blade portion is set to be larger than the circumferential width of the bent portion, and each blade portion is outside the conical surface with respect to the conical surface including the base end portion of the blade portion. It inclines at a predetermined angle toward the inside or inward.

  A wheel fan according to the present invention comprises a plate-like member bent into a predetermined form. The whole of the wheel fan can be configured of a single plate-like member, or can be combined with other members. The plate-like member is configured such that a user can easily perform a bending operation in accordance with a tire wheel, a wheel attachment hub, or the like of a vehicle to be attached. For this reason, while being able to form the wheel fan of the form adapted to the wheel attachment hub of various vehicles, or a tire wheel, it becomes possible to set up the standup angle of the said blade part, an attack angle, etc. to a desired value. . In addition, when the form of the vehicle and a wheel to attach is decided, it can also be processed beforehand in the form and dimension which the intermediate | middle process of bending, and the bending operation completed.

  The mounting plate portion is fixed between a wheel mounting hub and the tire wheel. The method or structure for fixing the mounting plate portion between the wheel mounting hub and the tire wheel is not particularly limited. For example, the mounting plate portion can be fixed by being sandwiched directly between the mounting surface of the tire wheel and the mounting surface of the wheel mounting hub. Further, the wheel fan mounting adapter according to the present invention is mounted on a wheel fan mounting adapter which is sandwiched between the mounting surface of the tire wheel and the mounting surface of the wheel mounting hub, or the mounting surface of the wheel fan mounting adapter and the wheel mounting hub It can also be fixed by putting it in between.

  The form of the attachment plate portion is not particularly limited, and can be set according to the attachment form or the like. For example, when the wheel mounting hub and the tire wheel are directly sandwiched and fixed, it is possible to secure a predetermined pressing surface and provide a bolt insertion hole for inserting the wheel mounting bolt. In addition, in the case of adopting a wheel fan mounting adapter which is sandwiched between a wheel mounting hub and the tire wheel, the wheel fan mounting adapter and the wheel mounting hub can be fixed so as to be pressed. Furthermore, a mounting plate portion that can be connected to the outer periphery of the wheel fan mounting adapter or the like can also be adopted. The form of the outer peripheral portion of the mounting plate portion is also not particularly limited, and can be set according to the form of the wheel mounting hub or the like. The outer peripheral portion of the mounting plate portion appears by bending a portion corresponding to the wing portion of the plate-like member to stand up, and does not constitute the outer peripheral portion in a state before bending.

  The radius of the outer peripheral portion is preferably set to be slightly larger than the outer periphery of the wheel mounting hub and the outer periphery of the tire wheel mounting surface. By setting the radial length of the bent portion large, it is possible to set the radial rising position of the blade portion, that is, the radius of the outer peripheral portion, to a required value. It is possible to adjust the radial dimension of the part fixed between the tire wheel and the position of the wing part.

  The wheel mounting surface of the wheel mounting hub is provided with a wheel mounting bolt and an annular positioning portion of the hub shaft so as to project in the axial direction. For this reason, the mounting plate portion is provided with a central hole for receiving or inserting at least the annular positioning portion. The center hole can also be positioned and fixed to the annular positioning portion. A plurality of wheel mounting bolts are erected around the annular positioning portion. For this reason, when the mounting plate portion is held between the wheel mounting hub and the mounting surface of the tire wheel, bolt insertion holes for inserting the wheel mounting bolts are provided. The center hole and the wheel mounting bolt insertion hole may be provided with an opening larger than that required, or different numbers of wheel mounting bolts, to be compatible with wheel mounting hubs and tire wheels having various forms and connection structures. In order to cope with the above, it is also possible to provide a plurality of sets of wheel mounting bolt insertion holes in a combined opening configuration. Further, the central hole and the bolt insertion hole can be configured as an integral opening.

  The outer peripheral portion of the mounting plate portion is provided with a plurality of blade portions provided at predetermined angular intervals and rising from the outer peripheral portion at a predetermined angle in the wheel axial direction. There are no particular limitations on the number and shape dimensions of the blades. When the number of vanes is small with respect to the predetermined outer peripheral dimension, the vanes having large dimensions can be formed, while when the number of vanes is large, small vanes are formed. Further, the angular intervals at which the vanes are provided do not have to be equal, and the size and shape of the vanes do not have to be the same.

  Between the outer peripheral portion of the mounting plate portion and the blade portion, a bent portion for causing the blade portion to rise is provided. The bent portion is set to be smaller than the circumferential width of the blade portion so that the blade portion can be easily bent in the direction of the hub shaft. For example, the circumferential width of the bent portion is preferably set to 1/3 or less of the circumferential width of the blade portion. When the circumferential width of the bent portion exceeds 1/3 of the circumferential width of the blade portion, the resistance in the case of raising or twisting the blade portion increases, and assembly processing becomes difficult. In addition, the risk of deformation of the mounting plate and the like also increases.

  The rising angle of the blade from the mounting plate is not particularly limited. For example, it can be set to 30 to 90 degrees. The rising angle means an inclination angle of the base end portion of the blade portion (a portion including an extension line outward in the radial direction from the bent portion) with respect to the radial direction of the mounting plate portion. Therefore, when the angle is set to 90 degrees, the air flow can be generated to be directed radially outward along the plane orthogonal to the hub axis.

  Since a brake disc, a caliper, etc. are provided in the inside of the wheel in which the said wheel fan is provided, the vacant space is limited. The rising angle needs to be set so as not to interfere with the brake disc, caliper or the like. In the present invention, since the rising angle and the like of the blade portion can be adjusted, it is possible to configure a wheel fan that can effectively utilize the space in the tire wheel.

  Further, each of the blade portions is configured to be inclined at a predetermined angle outward or inward of the conical surface with respect to the conical surface including the base end portion of the blade portion. That is, the angle of attack for generating the air flow is set to each of the blade portions. For example, the angle of attack can be set by deforming the blade portion so as to originate from the circumferential direction. Further, the angle of attack of the blade portion can also be set by deforming the bent portion so as to twist. The setting direction of the angle of attack is not particularly limited. The angle of attack can be set to cause the axially outward air of the tire wheel to flow axially inward according to the direction of rotation of the tire wheel, or the air inside the tire wheel is directed axially outward. It can also be set to flow. Further, by adjusting the rising angle and the angle of attack of the blade portion, the flowing air flow can be set to flow in the radial direction of the hub shaft. By adjusting and setting these angles, a wheel fan having desired characteristics can be configured.

  An annular outer peripheral reinforcing portion can be provided to integrally connect the radial outer peripheral portions of the respective blade portions. The outer peripheral reinforcing portion is connected at a part of the radially outer edge portion of each of the blade portions. For example, it is preferable to connect at the outer peripheral part of the said base end part of each blade part. It is desirable that the outer peripheral reinforcing portion is included in the plate-like member and integrally formed with the blade portion. In addition, another annular member may be connected to the outer periphery of each blade portion. When the outer peripheral reinforcing portion integrally formed on the plate-like member is bent, the outer peripheral dimension of the plate-like member is reduced. For this reason, each blade portion is displaced so as to rise from the mounting plate portion. In the present invention, since the bent portion is provided, deformation concentrates on the bent portion, and the blade can be made to rise without largely changing the form of the blade. The bending position of the outer periphery reinforcing portion is not particularly limited, and at least a portion other than the portion connected to the blade portion can be bent.

  When the circumferential width of the bent portion is set small in order to displace the blade portion to a required position, the holding strength of the blade portion is reduced. When the outer peripheral reinforcing portion is provided, it is possible to secure the strength of the blade portion even if the circumferential width dimension of the bent portion is set small. When the outer peripheral reinforcing portion is included in the plate-like member and integrally formed with the blade portion, when the outer peripheral reinforcing portion is bent, the distance between the blade portions is bent so as to be restrained by the outer peripheral reinforcing portion. . Further, the bent portion can be deformed only by bending the outer peripheral reinforcing portion in a predetermined direction, and the blade portion can be deformed so as to rise from the mounting plate portion. That is, the blade portion can be uniformly raised only by bending and deforming a predetermined portion of the outer periphery reinforcing portion by a predetermined amount. For this reason, it becomes possible to perform bending of each blade part very easily.

  The radial direction width dimension of the outer peripheral reinforcing portion in the case where the outer peripheral reinforcing portion is integrally provided on the plate-like member is not particularly limited, but is preferably set to 10 mm or less. If a radial width dimension exceeding 10 mm is set, the force required for deformation becomes large and bending becomes difficult.

  It is desirable that the outer peripheral reinforcing portion be connected to the blade portion at the outer peripheral portion of the base end portion of each blade portion. The base end portion of each blade portion is a portion serving as a reference of the rising angle with respect to the mounting plate portion, and can be set on an extension extending radially outward from the bent portion. As a result, the tip end side in the circumferential direction of the blade portion is deformed so as to rise from the plate surface, and the conical surface including the base end portion of the blade portion is directed outward or inward of the conical surface. It can be inclined at an angle. In the present invention, not only the degree of angle of attack of the blade portion can be set to a desired value, but also the direction of generating air flow can be set by turning the tip end side of the blade portion outward or inward of the conical surface. it can.

  There is no particular limitation on the angle with respect to the conical surface including the proximal end of the blade, that is, the value of the angle of attack. For example, an inclination angle of 5 to 45 degrees can be set. In addition, the angle with respect to a conical surface means the angle between the line segment orthogonal to the said generatrix and the said blade part on the surface which touches along the generatrix of the conical surface containing the base end part of each blade part. If the angle of attack is less than 5 degrees, sufficient air flow can not be generated. On the other hand, when the value of the angle of attack is set to more than 45 degrees, not only the resistance for rotating the fan increases but also the efficiency for generating air flow decreases.

  The auxiliary blade part extended from the said outer periphery reinforcement part can be provided. By providing the outer periphery reinforcing portion, the deformation strength of each blade portion is increased. For this reason, it becomes possible to provide an auxiliary blade part further in the perimeter side of each above-mentioned blade part. The formation method and the form of the auxiliary blade portion are not particularly limited. Further, the rising angle and the angle of attack of the auxiliary blade with respect to the mounting plate can be set to values different from those of the blade. Therefore, when a large space can be secured in the wheel, it is possible to configure a wheel fan that generates a large air flow.

  The auxiliary blade portion can be formed integrally with the outer peripheral reinforcing portion in a plate-like member, or can be configured by connecting another member to the outer peripheral reinforcing portion after assembly. Moreover, when integrally forming, it is preferable to provide the said auxiliary blade part also via the narrow bend part extended from the said outer periphery reinforcement part. By providing the auxiliary blade portion via the bending portion, bending processing of the auxiliary blade portion is facilitated. As in the case of the blade portion, it is desirable that the circumferential width dimension of the bent portion of the auxiliary blade portion be set smaller than the circumferential width of the auxiliary blade portion.

  Since the wheel fan according to the present invention rotates with the tire wheel, there is a risk that the wheel balance may be broken if it is not attached to the shaft. For this reason, it is desirable to attach the central axis with high accuracy to the wheel hub.

  An annular positioning portion for positioning the tire wheel is provided at a predetermined height at the center of the tire wheel mounting surface of the wheel mounting hub to be mounted. However, the outer diameter of the annular positioning portion is not constant, and varies depending on the vehicle and the mounted tire wheel. For this reason, in order to correspond to various vehicles, it will be necessary to prepare various wheel fans which differ in the inside diameter of a central hole.

  In the present invention, in order to avoid the above-mentioned inconvenience, a positioning convex portion can be provided on the inner peripheral portion of the central hole of the mounting plate portion. The form of the positioning convex portion is not particularly limited. For example, it is possible to provide a projecting positioning protrusion projecting radially inward from the inner periphery of the central hole. The positioning convex portion can be configured to secure an inner diameter dimension corresponding to the smallest annular positioning portion.

  When the wheel fan according to the present invention is attached, the inward edge portion of the convex portion is cut on the outer periphery of the annular positioning portion by equally cutting the convex portion to a size corresponding to the outer diameter of the annular positioning portion. It can be made to abut on the part. Alternatively, the inward edge portion of the positioning convex portion is formed on the outer peripheral portion of the annular positioning portion by bending the positioning convex portion equally in the hub axial direction to a dimension corresponding to the outer diameter of the annular positioning portion. It can be made to abut. As a result, the wheel fan can be accurately positioned and attached at a position corresponding to the axial center of the wheel.

  A wheel fan mounting adapter for mounting a wheel fan according to the present invention can also be employed. The wheel fan attachment adapter is configured to be able to connect the wheel fan according to the present invention and to be fixed between the wheel attachment hub and the tire wheel.

  By configuring the wheel fan mounting adapter so that it can be positioned by the wheel mounting bolt, it becomes possible to align the wheel fan with the axis and mount it with high accuracy. In addition, if the wheel fan mounting adapter is adopted, the space between the wheel mounting hub and the mounting surface of the tire wheel can be expanded to secure a space for mounting the wheel fan or increase the space. . For this reason, it becomes possible to constitute a wheel fan which can expect a required effect.

  In addition, it is also possible to expect the effect that bending processing can be easily performed in a state where the wheel fan is fixed to the wheel mounting hub by the wheel fan mounting adapter.

  The form and the like of the above-mentioned wheel fan attachment adapter is not particularly limited, but it can be fixed so as to be sandwiched with the above-mentioned wheel fan between the attachment surface of the above-mentioned wheel attachment hub and the attachment surface of the tire wheel Can be configured. For example, it may be configured to be used also as a spacer or a wheel mounting bolt conversion adapter, and may be mounted so as to sandwich the mounting plate portion of the wheel fan between the mounting surface of the wheel mounting hub and the wheel fan mounting adapter. Can. Also, the wheel fan can be connected to the outer periphery of the wheel fan attachment adapter.

  Moreover, the connection method of the said wheel fan and the said wheel attachment adapter is not specifically limited, either. A stepped portion or the like corresponding to the center hole of the mounting plate can be provided and fitted to the outer peripheral portion of the wheel fan mounting adapter. Further, the wheel fan can be connected to the wheel adapter by utilizing a positioning convex portion provided on the inner peripheral portion of the central hole of the mounting plate portion.

  The wheel fan according to the present invention is formed by bending a plate-like member. The plate-like member is provided as a wheel fan assembly kit, and is configured such that the user can perform bending work and the like according to the forms of the wheel mounting hub and the tire wheel.

  The plate-like member has a planar shape corresponding to the mounting surface of the wheel mounting hub, and a plurality of mounting plates provided with a central hole and a plurality of radially formed portions of the mounting plate at predetermined angular intervals And the bent portions extending from the mounting plate portion and connected to the respective blade portions, and the adjacent bent portions are provided spaced apart through a predetermined cut portion, and are adjacent to each other. The blade portion to be fitted is separated by a blade portion separation slit extending radially outward from a part of the cut portion, and the circumferential width of the blade portion is set larger than the circumferential width of the bent portion ing.

  Although the material and thickness which comprise the said plate-shaped member are not specifically limited, It is set as the thickness which a user bends easily using pliers etc., and can assemble. For example, when employ | adopting metal plate-shaped members, such as an aluminum plate, it can set to the thickness of 1-3 mm. Moreover, in the case of a stainless steel material, it can be set to 0.2 to 1.0 mm. Furthermore, in the case of employing a plate-like member formed of a resin material, for example, an FRP plate-like material that can be cured by heat treatment is employed, and after performing a bending operation or the like to deform into a predetermined form before heat treatment, The whole can be heat treated and cured.

  An annular outer peripheral reinforcing portion continuously formed on the entire circumference can be provided so as to connect the respective blade portions radially outward of the respective blade portions. The outer peripheral reinforcing portion is connected at the outer peripheral edge portion of the base end portion of each blade portion, and continues from the blade portion separating slit with the each blade portion, and the periphery of each blade portion An attack angle setting slit is formed which is displaced so as to rise from the proximal end to set the attack angle.

  For example, the above-mentioned wheel fan assembly kit which adopted metal plate-like material is assembled by bending in the following procedures.

  First, a blade portion rising process is performed in which the blade portion is bent at a predetermined angle in the axial direction of the wheel mounting hub from the mounting plate portion. The blade portion rising process is carried out by using a pliers or the like to deform the blade portion so as to raise from the mounting plate portion in the wheel axial direction. Since a bent portion smaller in circumferential width than the blade portion is formed radially inward of the base end portion of the blade portion, the blade portion is displaced so as to be raised from the surface of the metal plate member. The deformation can be concentrated on the bent portion, and the blade can be raised from the surface of the metal plate member at a required angle while holding the form of the blade.

  Next, an attack angle setting step is performed, in which the blade portion is displaced so as to incline at a predetermined angle outward or inward of the conical surface with respect to the conical surface including the base end portion of the blade portion. It will be. When the blade portion is displaced from the circumferential direction so as to twist, torsional deformation can be concentrated on the bent portion as in the blade portion rising step. Therefore, the angle of attack can be set without significantly deforming the blade. The angle of attack can be defined by the contact surface including the generatrix of the conical surface and the angle of the blade, but the blade does not have to rise along the generatrix. Further, the angle of attack may be changed in the middle of each blade portion in the circumferential direction.

  In the case of providing an annular outer peripheral reinforcing portion integrally formed with the wing portion, the wing portion rising step and the attack angle setting step can be simultaneously performed by deforming the outer peripheral reinforcing portion.

  The outer periphery reinforcing portion is integrally connected to a part of the outer periphery of the blade portion, and therefore, when a portion of the outer periphery reinforcing portion is bent so as to reduce the circumferential length of the outer periphery reinforcing portion, The blade portion is deformed to rise from the surface of the metal plate member. In this case, when only the portion not connected to the blade portion is deformed, the blade portion can stand up without twisting. In addition, when it is bent so as to include a portion connected to the blade portion, the blade portion can be made to stand up while being displaced so as to twist from the circumferential direction. That is, by adjusting the bending portion and the bending form of the outer peripheral reinforcing portion, the blade portion rising step and the attack angle setting step can be performed simultaneously.

  The blade portion rising step and the attack angle setting step are not performed by a single bending operation, but are performed by repeatedly deforming the outer peripheral reinforcing portion a plurality of times until a required blade shape is obtained. For this reason, according to the form of a wheel attachment hub or a tire wheel, even if a user itself assembles, it can assemble without failure.

  As described above, the wheel fan according to the present invention can be assembled by the user himself bending the plate-like member. For this reason, it becomes possible to provide as a wheel fan assembly kit containing the said plate-shaped member.

  While being able to set a form dimension easily for a user according to the form size of a wheel attachment hub or a tire wheel with which this is provided, the wheel fan which can exhibit a desired effect can be provided.

It is a disassembled perspective view which shows an example of the attachment form of a wheel fan. It is an assembly perspective view which fractures | ruptures a part of attachment structure of the wheel fan shown in FIG. 1, and shows an internal structure. It is an assembly perspective view which fractures | ruptures a part of attachment structure of the wheel fan shown in FIG. 1, and shows an internal structure. It is a front view which shows the state before the assembly of the plate-shaped member which comprises a wheel fan. It is sectional drawing in alignment with the VV line | wire in FIG. It is a front view which shows the method of bending-processing to the plate-shaped member shown in FIG. It is sectional drawing which follows the VII-VII line in FIG. It is sectional drawing in alignment with the VIII-VIII line which shows the bending deformation from the state shown in FIG. It is a side view which shows the state which bent and deformed the plate-shaped member. It is a front view of the plate-shaped member shown in FIG. It is an end elevation which follows the XI-XI line in FIG. It is an end elevation which follows the XII-XII line in FIG. It is a side view which shows the state which carried out bending deformation further from the state shown in FIG. It is a front view of the plate-shaped member shown in FIG. It is an end elevation which follows the XV-XV line in FIG. It is an end elevation which follows the XVI-XVI line in FIG. It is a side view which shows the state which carried out bending deformation further from the state shown in FIG. It is a front surface of the plate-shaped member shown in FIG. It is an end elevation which follows the XIX-XIX line in FIG. It is an end elevation which follows the XX-XX line in FIG. It is a figure which shows typically the state which saw the deformation process of the edge of a plate-shaped member from the outer peripheral side. It is sectional drawing which shows other embodiment of this invention. It is an expansion disassembled perspective view which shows the principal part of FIG.

  Hereinafter, embodiments of the present invention will be specifically described based on the drawings.

  FIG. 1 shows an exploded perspective view in a case where the wheel fan 3 according to the present invention is mounted between the wheel mounting hub 2 and the tire wheel 1. Moreover, while assembling the member described in FIG. 1 in FIG.3 and FIG.3, the one part is fractured | ruptured and the perspective view which shows an internal structure is shown.

  As shown in FIG. 1 and FIG. 2, the brake disc 6 is mounted on the outer periphery of the wheel mounting hub 2, and the brake caliper 5 provided on the vehicle body side surrounds the outer periphery of the brake disc 6. It is arranged. As shown in FIG. 3, in the present embodiment, the central portion of the brake disc 6 is integrated so as to cover the wheel mounting hub main body 2a provided at the tip of the axle 11, and the tire wheel mounting surface 2b is Configured. The brake disc 6 and the brake caliper 5 are disposed so as to be accommodated in the inner space of the tire wheel 1. The wheel fan 3 is fixed so as to be sandwiched between the wheel mounting surface 2 b and the mounting surface 1 a of the tire wheel 1, and is rotated together with the tire wheel 1.

  The attachment form according to the present embodiment is configured by including a wheel fan attachment adapter 4 interposed between the tire wheel 1 and the wheel attachment hub 2, and the attachment provided at the central portion of the wheel fan 3 The plate portion 3a is fixed so as to be sandwiched between the wheel fan mounting adapter 4 and the wheel mounting surface 2b. In the present embodiment, the wheel fan mounting adapter 4 is provided. However, the wheel fan can be fixed by being sandwiched directly between the wheel mounting hub 2 (2 a) and the mounting surface 1 a of the tire wheel 1.

  The wheel mounting hub 2 is provided with a plurality of wheel mounting bolts 7 a for mounting the tire wheel 1. In the present embodiment, the wheel mounting bolt 7 a is inserted into the bolt insertion hole provided in the mounting plate portion 3 a of the wheel fan 3 and inserted into the bolt insertion hole of the wheel fan attachment adapter 4, The wheel fan mounting adapter 4 and the wheel fan 3 are fixed to the wheel mounting surface 2 b of the wheel mounting hub 2 by screwing the adapter mounting nut 7 b.

  The mounting bolt 9a is also implanted in the wheel fan mounting adapter 4, and the mounting bolt 9a is inserted through the bolt insertion hole 1b of the tire wheel 1 and the nut 9b is screwed into the tire. The wheel 1 is connected to the wheel mounting hub 2 via the wheel fan mounting adapter 4.

  Hereinafter, the wheel fan 3 according to the present embodiment will be specifically described. In addition, this embodiment is an embodiment about the case where a wheel fan is comprised using a metal plate-shaped member.

  As shown in FIG. 4, the wheel fan 3 according to the present embodiment is formed by bending a metal plate member 12 punched into a predetermined shape. The material which comprises the said metal plate-shaped member 12 is not specifically limited. In the present embodiment, a metal plate member made of an aluminum alloy plate having a thickness of about 2 mm is employed. In addition, the method of the said punching process is not specifically limited, For example, the said metal plate-shaped member can be formed using laser processing and press processing.

  The metal plate member 12 shown in FIG. 4 is one before bending. The wheel fan 3 shown in FIGS. 1 to 3 is formed by bending the metal plate member 12 into a predetermined shape. The metal plate member 12 has a planar shape corresponding to the mounting surface 2b of the wheel mounting hub 2, and also has a mounting plate portion 3a provided with a central hole 13 and a wheel mounting bolt insertion hole 19, and the mounting plate portion 3a. It comprises a plurality of vanes 16 formed at predetermined angular intervals at radially outward portions, and bent portions 15 extending from the mounting plate portion 3a and connected to the respective vanes 16.

  Adjacent ones of the bent portions 15 are provided apart from each other through the cut portion 14 having a predetermined form. The adjacent blade portions 16 are separated by blade portion separation slits 17 extending radially outward from a part of the cut-out portion 14. Further, the circumferential width S1 of the blade portion 16 is set to be larger than the circumferential width S2 of the bent portion. The circumferential width S2 of the bent portion 15 is preferably set to one third or less of the circumferential width S1 of the radially inward edge portion of the blade 16. In the present embodiment, the above S2 is set to about one fourth of the above S1.

  In the present embodiment, an annular outer peripheral reinforcing portion 29 continuously formed on the entire circumference so as to connect the blades 16 is provided on the radially outer side of the blades 16. The outer peripheral reinforcing portion 29 is connected at the outer peripheral edge portion of the base end portion of each blade portion 16. Between the outer peripheral edge of each blade 16 and the outer peripheral reinforcing portion 29, the blade is separated from the blade separation slit 17 and extends toward the base end of the blade 16, and each blade 16 is An angle-of-attack setting slit 18 is formed which can be bent so as to rise from the proximal end. The base end portion of the blade portion 16 is set on the radial extension of the bent portion 15, and the cylindrical surface including the base end portion serves as a reference of the angle of attack and the rising angle.

  The attack angle setting slit 18 is configured to be able to be displaced so as to raise each blade 16 from the plate surface in cooperation with the cutting portion 14 and the blade portion separating slit 17. Further, by setting the circumferential length of the attack angle setting slit 18, the angle of attack and the direction of the blade portion can be adjusted. A circular opening 18a is formed on the base end side of the attack angle setting slit 18, and stress can be concentrated on this portion to allow the outer periphery reinforcing portion 29 to be bent in a concentrated manner, while the attack angle It is comprised so that a deformation | transformation of site | parts other than the setting slit 18 can be suppressed.

  In this embodiment, the radius method width dimension of the portion where the attack angle setting slit 18 of the outer peripheral reinforcing portion 29 is formed can be easily bent by pinching the outside of the portion where the attack angle setting slit 18 is provided with pliers or the like. It can be set in the range. For example, it is preferable to set to the radial direction width of 10 mm or less. On the other hand, the outer periphery reinforcing portion 29 is configured to be continuous with the blade portion at the base end side outer peripheral portion of the blade portion 16. For this reason, it is possible to concentrate the deformation on the portion of the attack angle setting slit 18, and the bending process can be easily performed.

  At the inner peripheral portion of the central hole 13 of the mounting plate portion 3a, a positioning convex portion 20 which protrudes inward in the radial direction is provided. Further, the wheel mounting bolt insertion hole 19 is configured to have a form in which a plurality of types of openings are combined so as to correspond to wheel mounting bolts of various arrangements.

  In this embodiment, the radial length of the bent portion 15 is set large by setting the radial dimension of the cut portion 14 large, and various radii can be set by adjusting the bending position in the radial direction. It is configured to be compatible with a wheel mounting hub with directional dimensions. Although the radial direction length of the said bending part 15 is not specifically limited, It is preferable to set to 10 mm or more.

  As shown in FIGS. 6 and 7, for example, the circumferential direction of the outer peripheral reinforcing portion 29 is, as shown in FIG. 8, sandwiching a portion 29a of the outer peripheral reinforcing portion 29 in which the attack angle setting slit 18 is formed with pliers. A twisting step is performed to raise the blade portion 16 from the plate surface by performing torsional deformation so as to reduce the length. When the circumferential length of the outer periphery reinforcing portion 29 is reduced, the outer periphery reinforcing portion 29 is displaced from the plate surface of the metal plate-like member 12 in a direction orthogonal to the plate surface, and accordingly, The wing portion 16 is deformed to rise from the plate surface. In the present invention, since the bending portion 15 having a small circumferential width is provided, the deformation is concentrated on the bending portion 15. For this reason, the blade portion is displaced so as to rise from the bent portion 15.

  In the above-mentioned blade portion rising step, the outer peripheral reinforcing portion 29 corresponding to each blade portion 16 is sequentially deformed in the circumferential direction and repeated a plurality of times instead of being deformed to the final deformation amount by one deformation operation. To be done. The deformation process of the metal plate-like member in the above-mentioned blade part rising process is shown in FIGS. In addition, the said wheel fan 3 can also be fixed to a jig etc., and the said blade part rising process can also be performed. In addition, by adopting the wheel fan attachment adapter 4, it can be performed in a state of being attached to a wheel attachment hub. In this embodiment, the portion 29a of the outer peripheral reinforcing portion 29 in which the attack angle setting slit 18 is formed is deformed by being pinched by pliers, but a force is applied to the outer periphery of the base end of the blade to perform similar deformation operation It can also be done.

  FIG. 9 to FIG. 12 show the initial stage of the above blade portion rising process. These figures show a state in which the blade portion 16 is raised from the mounting plate portion 3a by θ1 = about 10 degrees. Since the circumferential length of the outer peripheral reinforcing portion 29 is reduced when the portion 29a in which the attack angle setting slit 18 is formed is bent as shown in FIG. 8, as shown in FIG. The portion 16 is deformed so as to rise from the mounting plate portion 3a. Further, since the attack angle setting slit 18, the cutting portion 14 and the blade separation slit 17 are formed, the circumferential end of each blade 16, that is, radially outward from the bent portion The circumferential tip end of the blade portion is relatively displaced in the radial direction with respect to the positioned portion. That is, each blade portion 16 is deformed so as to rise relative to the plate surface, and an angle of attack α with respect to the cylindrical surface including the base end portion is set to the blade portion 16. Specifically, the angle of attack α can be defined as an angle with respect to a plane in contact with the generatrix including the base end in the cylindrical surface Q including the base end. In the embodiment shown in FIGS. 9 to 11, the attack angle shown in FIG. 12 is α1 = approximately 5 degrees.

  After completing the initial stage of the blade portion rising process, the outer periphery reinforcing portion 29 is further deformed. 13 to 16 show a state in which each blade portion 16 is raised from the mounting plate portion 3a to θ 2 = about 30 degrees. As shown in FIG. 16, when the rising angle θ2 increases, the angle of attack α2 of each blade also increases, and in the embodiment illustrated in FIGS. 13 to 16, α2 = 12 to 13 degrees.

  FIGS. 17 to 20 show cases where the amount of deformation is further increased from the embodiments shown in FIGS. 13 to 16 above. The rising angle θ3 shown in these figures is set to about 60 degrees. Further, the angle of attack θ3 of the blade portion 16 further increases, and θ3 = approximately 25 degrees.

  FIG. 21 shows the process of changing the form of the edge of the outer periphery reinforcing portion 29 as viewed from the outside of the edge of the outer periphery reinforcing portion 29 (the direction of the arrow Y in FIGS. 11, 15 and 19). . As shown in FIG. 8, when the portion 29 a of the outer periphery reinforcing portion 29 in which the attack angle setting slit 18 is formed is twisted and deformed, the circumferential length of the outer periphery reinforcing portion 29 is reduced and the blade The portion 16 is displaced so as to stand up to the plate surface. At the same time, the tip end side of the blade 16 is displaced away from the cylindrical surface Q including the proximal end 29 b of the blade 16. As shown in (a) to (c) of FIG. 21, the displacement or deformation of each of these parts increases with the torsional deformation of the portion 29a in which the attack angle setting slit 18 is formed. As a result, at the same time the blade portion 16 rises from the metal plate member 12, the attack angles α1 to α3 are set.

  9 to 20 sequentially show the blade portion rising step and the attack angle setting step according to the deformation degree of the blade portion, but the rising angle and the attack angle of the blade portion are the same as the angles shown in FIG. There is no limitation. The required effect can be exhibited even with the amount of deformation in the middle of the metal plate member. Further, the relationship between the rising angle of the blade portion and the angle of attack is not limited to those shown in the above-mentioned drawings, and the bending form of the outer peripheral reinforcing portion 29, the direction and length of the angle of attack setting slit 18 etc. Can be changed by adjusting the In the above embodiment, the outer peripheral reinforcing portion 29 is deformed by pinching the portion 29a in which the attack angle setting slit 18 is formed with pliers, but a force is applied to the edge portion on the base end side of each blade portion. It can also be deformed.

  Further, in the present embodiment, each blade portion 16 is provided only on one side in the circumferential direction of the base end portion 29b set outward in the radial direction of the bent portion 15, but the blade portions are provided on both sides of the base end portion 29b. Can be configured to extend inward and outward of the conical surface Q.

  22 and 23 show another embodiment of the present invention. In the embodiment shown in these figures, the wheel fan 103 is integrally connected to a wheel fan mounting adapter 104 fixed between the wheel mounting hub 2 and the mounting surface of the tire wheel 1. The wheel fan attachment adapter 104 is formed in a thick disk shape formed of an aluminum alloy or the like, and can be used also as a spacer or a wheel conversion adapter.

  As shown in FIG. 22, in the wheel fan 103 according to the present embodiment, the positioning convex portion 20 shown in FIG. 4 is bent along the inner circumferential surface 104 a of the wheel fan attachment adapter 104, and the positioning convex portion 20 is A fixing ring 31 which is held between the inner peripheral surface 104 a and the inner peripheral surface 104 a is fitted to the inner peripheral portion of the wheel fan attachment adapter 104. With the above configuration, the wheel fan 103 is integrated with the wheel fan attachment adapter 104.

  The inner peripheral portion of the fixing ring 31 is configured to be able to be fitted with the outer peripheral portion of the annular positioning portion 11 b extending from the main body 11 a of the wheel mounting hub 2. Therefore, the wheel fan can be positioned and mounted on the wheel mounting hub simply by fitting the inner peripheral surface of the fixing ring 31 to the outer periphery of the annular positioning portion 11b. Therefore, the wheel fan 103 can be easily attached and detached.

  Further, since the wheel attachment adapter 104 has higher rigidity than the wheel fan 103, the wheel attachment adapter 104 can be easily fixed to a vise or the like. For this reason, bending work can be easily performed by attaching the metal plate-like member 112 before the bending process to the wheel mounting adapter 104.

  The present invention is not limited to the embodiments described above. In the embodiment, the wheel adapter is provided, but it may be directly sandwiched and fixed between the wheel mounting hub and the tire wheel. Further, the material, thickness, and bending form of the metal plate-like member are not limited to those of the embodiment.

  It is possible to inexpensively provide a wheel fan that can be easily attached to wheel mounting hubs or tire wheels having different shapes and sizes.

DESCRIPTION OF SYMBOLS 1 tire wheel 2 wheel mounting hub 3 wheel fan 3a mounting plate part 3b outer peripheral part 12 metal plate-like member 13 center hole 19 bolt insertion hole 16 blade part 15 bending part S1 circumferential width of blade part S2 circumferential width of bending part Conical surface including the base end of the Q blade

Claims (15)

A wheel fan provided in a tire wheel of a car,
The wheel fan is configured to include a plate-like member bent into a predetermined form,
The plate member is
A mounting plate portion having a central hole and fixed between the wheel mounting hub and the tire wheel and having an outer peripheral portion set at a predetermined radius from the wheel axis;
A plurality of blade portions provided at predetermined angular intervals in the outer peripheral portion and rising from the outer peripheral portion at a predetermined angle in the wheel axial direction;
And a bent portion provided between the outer peripheral portion and the blade to raise the blade.
The circumferential width of the blade portion is set larger than the circumferential width of the bent portion,
The wheel fan is configured such that each blade is inclined at a predetermined angle outward or inward of the conical surface with respect to the conical surface including the base end of the blade. An annular outer peripheral reinforcing portion which is included in the plate-like member and integrally connects the radial outer peripheral portions of the blade portions,
The outer peripheral reinforcing portion is connected at a part of the radially outer edge portion of each blade portion,
While the predetermined | prescribed area | region of the said outer periphery reinforcement part is bend | folded and the circumferential direction dimension is reduced,
The wheel fan according to claim 1, wherein the bent portion is bent such that the blade portion rises at a predetermined angle from the mounting plate portion.   The wheel fan according to claim 1 or 2, wherein the rising angle of the blade portion from the mounting plate portion is set to 30 to 90 degrees.   The wheel fan according to any one of claims 1 to 3, wherein the blade portion is set at an inclination angle of 5 to 45 degrees with respect to a conical surface including the base end portion of the blade portion. .   The circumferential width dimension of the said bending part is set to 1/3 or less of the circumferential width dimension of the radial direction inward edge part of the said blade part in any one of Claim 1 to 4 Wheel fan described.   The wheel fan according to any one of claims 1 to 5, wherein a radial width of the outer circumferential reinforcing portion is 10 mm or less.   The wheel fan according to claim 2, further comprising an auxiliary blade portion extending from the outer peripheral reinforcing portion.   The wheel fan according to any one of claims 1 to 7, further comprising: a positioning convex portion on an inner peripheral portion of the central hole of the mounting plate portion.   The wheel fan according to claim 8, wherein the positioning convex portion is bent in the hub shaft direction.   10. The wheel fan mounting adapter according to claim 1, further comprising: a wheel fan mounting adapter that can connect the wheel fans according to claims 1 to 9 and is fixed between the wheel mounting hub and the tire wheel. Wheel fan. A wheel fan assembly kit comprising a plate-like member capable of constituting a wheel fan by bending.
The plate-like member has a planar configuration corresponding to the mounting surface of the wheel mounting hub, and a mounting plate portion provided with a central hole;
A plurality of vanes formed at predetermined angular intervals at radially outward portions of the mounting plate;
A bending portion extending from the mounting plate portion and connected to the respective blade portions;
Adjacent ones of the bent portions are spaced apart from each other via a predetermined cut portion.
The adjacent blade portions are separated by blade portion separation slits extending radially outward from a part of the cut portion, and
A wheel fan assembly kit, wherein the circumferential width of the blade portion is set larger than the circumferential width of the bent portion. An annular outer peripheral reinforcing portion is formed continuously along the entire circumference so as to connect the respective blade portions radially outward of the respective blade portions,
The outer peripheral reinforcing portion is connected at the outer peripheral edge portion of the base end portion of each blade portion, and
An attack angle setting slit that is continuous with the blade separation slit between the blade and the circumferential edge of the blade is displaced to rise from the base to set an attack angle. The wheel fan assembly kit according to claim 11, wherein is formed. A method of assembling a wheel fan formed by bending a single plate member, comprising:
A mounting plate portion fixed between the wheel mounting hub and the tire wheel, a blade portion extending radially outward from the mounting plate portion, and a bent portion connecting the mounting plate portion and the blade portion Preparing a plate-like member provided with
A blade portion rising step of bending the blade portion from the mounting plate portion in the axial direction of the wheel mounting hub at a predetermined angle;
An angle of attack setting step of displacing the blade so as to incline at a predetermined angle outward or inward of the conical surface with respect to the conical surface including the base end of the blade How to form a fan. The plate-like member is configured to include an annular outer peripheral reinforcing portion which is connected at a part of the radially outer edge of each of the vanes and is formed so as to surround the vanes.
The method for forming a wheel fan according to claim 13, wherein the blade portion rising step is performed by bending a part of the outer circumferential reinforcing portion so as to reduce a circumferential length of the outer circumferential reinforcing portion. The method for forming a wheel fan according to claim 14, wherein the blade portion rising step and the attack angle setting step are simultaneously performed by bending the outer peripheral reinforcing portion.

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