JP2005053318A - Spoke cover attaching tool and spoke cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spoke cover attaching tool for facilitating attachment and detachment of a spoke cover to a wheel body. <P>SOLUTION: The spoke cover attaching tool 1 comprises two extending sections 11 with a length substantially equal to the width of a rim and a joint 12 for connecting base ends of two extending sections 11, and further comprises two small plates 13. The extending sections 11 are disposed in parallel at an interval substantially equal to the thickness of the rim, the tips have a shape mutually bent toward opposite extending section 11 sides, and the rim can be sandwiched from the inner edges and fixed between the extending sections 11. Two small plates 13 are erected from a predetermined position of the joint 12 on the center side of the rim when it is attached to the wheel body. Two small plates 13 are separated at the interval substantially equal to the thickness of the spoke cover, and the rim section of the spoke cover can be sandwiched and fixed between the small plates 13. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a spoke cover attachment for attaching to a wheel a spoke cover that covers a spoke from the outside of a wheelchair wheel provided on the left and right sides of the wheelchair, and a spoke cover used in combination with this spoke cover attachment.

In general, a manual wheelchair that is a means for moving a handicapped person is provided with operation wheels on the outside of the wheels provided on the left and right sides thereof, and the user operates the wheelchair to operate the wheelchair. Be able to. When performing this traveling operation, there are many accidents in which fingers or the like are caught in the spokes of the wheels and the fingers are injured. Moreover, such accidents related to spokes often occur when an electric wheelchair is used.
For this reason, in order to prevent accidents related to spokes, it is necessary to cover the spoke from the outside of the wheel and cover the spoke with a spoke cover (wheel cover) to prevent fingers from being caught in the spoke. It has been broken.
In general, the spoke cover has a shape substantially corresponding to the inner portion of the rim and can cover the spoke, and is provided with attachment holes at several places. Bolts are passed through the mounting holes, and the bolts are fixed to the spokes by screwing them into nuts via washers (washers) located inside the spokes.

  However, the work of fixing the spoke cover to the wheel by screwing the bolt and nut in this way requires the use of a tool, and the installation work is troublesome. Also, the task of removing and replacing the spoke cover after it has been attached once was similarly troublesome.

  In view of the above, the present invention provides a spoke cover attachment for facilitating attachment and detachment of a spoke cover to a wheel body, and a spoke cover used in combination with the spoke cover attachment.

In order to achieve the above object, the spoke cover attachment proposed by the present invention is as follows.
That is, an annular rim having a predetermined width and thickness to which a tire is attached, a hub that is located at the center of the rim and serves as an axle, and a plurality of spokes that connect the inner edge of the rim and the hub, A spoke cover mounting tool for attaching a spoke cover that has a shape substantially corresponding to the inner portion of the rim to the wheel main body and that can cover the spoke, and is detachable from the wheel main body A wheel body attaching means to be attached, and a spoke cover attaching means fixed to the wheel body attaching means, which can be detachably attached to a peripheral portion of the spoke cover, and is attached to the rim. The spoke cover is attached to the wheel body by attaching the spoke cover to each of the spoke cover attachments. And it can now be attached to the ability.
The spoke cover mounting tool of the present invention is such that the spoke cover mounting tool itself can be detachably mounted on the wheel body, and the wheel body mounting means can be detachably mounted on the periphery of the spoke cover. Since it is equipped with a spoke cover mounting means fixed to the mounting means, it does not require separate members such as bolts and nuts as in the prior art, and does not require tools, and the spoke cover can be attached to and detached from the wheel. Since the work can be performed, the work load can be reduced.
In the present application, the “rim width” means the distance from the outer diameter to the inner diameter of the rim, and the “rim thickness” means from one surface (the surface on the side visible from the outside) to the other surface (from the outside). It means the distance to the surface that cannot be seen.

This spoke cover attachment may be of any material and shape as long as it includes the wheel body attachment means and the spoke cover attachment means as described above. For example, it can be made of resin or metal.
The spoke cover attachment means may be fixed to the wheel body attachment means. That is, the wheel main body attaching means and the spoke cover attaching means may be integrally molded, or may be constituted by separate members, and both may be fixed.

The wheel body mounting means includes, for example, two extending portions having a length substantially equal to the width of the rim, and a connecting portion that connects base ends of the two extending portions, and the extending portion Are arranged so as to be parallel to each other with an interval substantially equal to the thickness of the rim, and the distal ends thereof are bent toward the other extending portion, The rim may be sandwiched and fixed from the inner edge therebetween. In this way, the spoke cover attachment can be easily attached to the wheel body simply by sandwiching the rim from the inner edge between the extended portions.
In addition, the said connection part is longer than the thickness of a rim | limb, and it is good also as what has the part bent in the part opposite to the said extension part side at least in the part. If it carries out like this, the space | interval between the said 2 extended parts can be further opened only by the part of the open leg of the bent part, and it can have a play between the said 2 extended parts.

Further, the spoke cover attaching means includes, for example, two small plates, and the small plate has the rim when the spoke cover mounting tool is mounted on the wheel body from a predetermined position of the connecting portion. Further, the two small plates are spaced substantially equal to the thickness of the spoke cover, and the peripheral edge of the spoke cover can be sandwiched and fixed between the small plates. It can be assumed that In this way, the spoke cover attachment tool can be easily attached to the spoke cover by simply sandwiching the peripheral edge of the spoke cover between the two small plates.
Also, when attaching the spoke cover to the wheel body with bolts and nuts, it is necessary to make a hole in the spoke cover, and the spoke cover is made of a hard material such as FRP in order to prevent the size of the hole from expanding. However, according to this spoke cover mounting means, unlike the mounting with bolts and nuts, it is not necessary to drill holes in the spoke cover, so there is no need to use a hard material such as FRP, A vinyl chloride foam or the like can be used.

In addition, the above-described spoke cover mounting tool is used in combination with the spoke cover in which one of a concave portion or a convex portion is provided at a predetermined interval on the periphery thereof, and the two spoke cover mounting means. Between the two small plates, one of a convex portion or a concave portion is provided, and the concave portion or the convex portion of the spoke cover and the convex portion or the concave portion of the spoke cover attaching means are locked. It is good as it is.
In this way, when attaching the spoke cover attachment to the spoke cover, the concave or convex portion of the spoke cover and the convex or concave portion of the spoke cover attachment are locked together, so the periphery of the spoke cover sandwiched between the small plates The position of the part can be prevented from shifting.
A convex portion may be provided on the spoke cover, and a concave portion may be provided on the spoke cover attaching means, or a concave portion may be provided on the spoke cover, and a convex portion may be provided on the spoke cover attaching means.
The shape of the convex portion and the concave portion is not limited as long as they are locked with each other. For example, the convex part and the concave part may have a semicircular cross section or a triangular cross section.

Further, the present invention provides an annular rim having a predetermined width and thickness to which a tire is attached, a hub that is located at the center of the rim and serves as an axle, and a large number of connecting the inner edge of the rim and the hub. A spoke cover that is attached to a wheel body having a spoke and has a shape substantially corresponding to an inner portion of the rim, and can cover the spoke, as described above Provided is a spoke cover that is used in combination with a spoke cover attachment, and has one of the concave portion or the convex portion provided at a predetermined interval on the periphery of the spoke cover.
According to the spoke cover having such a shape, it is possible to prevent the peripheral edge of the spoke cover from shifting. That is, the spoke cover can be prevented from rotating with respect to the wheel body.

Further, the spoke cover may have a lighting unit attached at a predetermined position that can be visually recognized from the outside when the spoke cover is attached to the wheel body.
Wheelchairs can cause accidents, especially during the night, when it is difficult for drivers to recognize their presence.
According to the spoke cover of the present invention, since the illumination means is attached at a predetermined position visible from the outside when attached to the wheel body, the illumination means can recognize the traveling of the wheelchair to the surroundings. And safety can be improved.
As long as the illumination means can irradiate light and can be attached to the spoke cover, its shape, material, etc. are not limited. The position where the illumination means is provided may be a position where the spoke cover is visible from the outside of the spoke cover when the spoke cover is attached to the wheel body.

  According to the spoke cover mounting tool and the spoke cover of the present invention, the spoke cover can be easily attached to and removed from the wheel body.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments of the invention will be described with reference to the drawings.

<Embodiment>
FIG. 1 is a perspective view showing a wheelchair provided with a wheel main body 3 to which a spoke cover 2 is attached using the spoke cover attachment 1 of the present embodiment.

  FIG. 2 is an enlarged view of the wheel body 3 to which the spoke cover 2 is attached using the spoke cover attachment 1 of the present embodiment.

As shown in FIG. 2, the wheel body 3 includes an annular rim 32 having a predetermined width and thickness to which a tire 31 is attached, a hub 33 serving as an axle located at the center of the rim 32, and a rim 32. And a plurality of spokes (not shown) that connect the inner edge of the hub and the hub 33.
The spoke cover 2 has a shape substantially corresponding to the inner portion of the rim 32, in this embodiment, a conical shape, so that the spoke can be covered. A light portion 4 and an operation switch 5 shown in FIG. 2 for operating the light portion 4 are attached to a surface of the spoke cover 2 that can be seen from the outside when the spoke cover 2 is attached to the wheel body 3.
The spoke cover 2 is attached to the wheel body 3 by a spoke cover attachment 1.
In this embodiment, the spoke cover 2 is attached only to the rear wheel.

As shown in FIG. 3, the spoke cover 2 of the present embodiment has an outer diameter of a size substantially corresponding to the inner diameter of the rim 32, in which an exposure hole 21 is provided at a substantial center so that the hub 33 can be exposed. It has a record-shaped plate-like body.
On the periphery of the spoke cover 2, a semicircular groove portion 22 is provided with a central angle of 20 ° with the central portion of the spoke cover 2 as the center.
The diameter of the groove portion 22 is substantially the same as the diameter of the semicircular column 14 having a semicircular cross section of the spoke cover attachment 1 described later.
Further, a notch 23 having a wide portion is provided from the position where one of the groove portions 22 is to be provided on the peripheral edge of the spoke cover 2 toward the exposure hole 21. The wide portion of the cut 23 is formed with a rectangular hole when the cut 23 is closed. The rectangular hole has a size that allows an operation switch 5 to be described later to be fitted therein.
In addition, a 1/4 circular cutout 24 is provided at a portion where the cut 23 and the peripheral edge are in contact with each other so that a semicircular groove 22 is formed when the cut 23 is closed. Yes.
On both sides of the notch 23, operation switch fixing holes 25 for fixing the operation switch 5 to the spoke cover 2 are provided.
That is, as will be described later, the operation switch 5 has a surface (rear surface) on which the blinking / lighting switch 51 and the power switch 52 are not provided fixed to a thin board (not shown). By fixing the thin plate board to the spoke cover 2 through the operation switch fixing hole 25, the operation switch 5 is attached to the spoke cover 2.
Four light holes 26a are provided inside the peripheral edge of the spoke cover 2 with a central angle of 90 ° from the center of the spoke cover 2 as a center. Also, four light holes 26b are provided outside the peripheral edge of the exposed hole 21 of the spoke cover 2 with a central angle of 90 ° with the central portion of the spoke cover 2 as the center. The light hole 26 a and the light hole 26 b are positioned on the same radius of the spoke cover 2. An electrode cord hole 27 is further provided near the light hole 26b between the light hole 26a and the light hole 26b that are on the same radius.

  In the present embodiment, the light unit 4 includes a light 41, a light cover 42, and a light cover fixture 43 as shown in FIG. The light unit 4 is used together with an operation switch 5 for operating lighting of the light 41.

  The light 41 is a rod-like neon fiber, and the length thereof is formed to be shorter than the length from the outer diameter to the inner diameter of the spoke cover 2. In addition, the electrode cord 41a of the light 41 protrudes from one end side. The electrode cord 41a is connected to the operation switch 5 for use.

The light cover 42 is for covering and protecting the light 41 as shown in FIG. 4 in order to prevent breakage of the light 41 arranged on the spoke cover 2. As shown in FIG. 5, the light cover 42 is a long and thin rectangular parallelepiped-shaped container having a concave portion that covers the light 41 and allows the light 41 to be inserted therein. Protrusions 44 for connection to the light cover fixture 43 are provided on the outer surfaces of both ends in the length direction of the light cover 42. The protrusion 44 is a member having a cross-sectional shape obtained by connecting a semicircle to a rectangle, and a hole 44a is provided in the inside from a surface not connected to the light cover 42.
The light cover 42 is formed of a transparent resin.

The light cover fixture 43 is for attaching the light cover 42 into which the light 41 is inserted to the spoke cover 2.
As shown in FIG. 6, the light cover fixture 43 is a substantially L-shaped member, one end of which can be fitted with the light cover 42, and the other end of which is a light hole of the spoke cover 2. It has a shape that can be fitted to 26a and 26b.
That is, the light cover fixture 43 has a hole 43a having substantially the same shape as the connection member of the light cover 42 at one end thereof, and can be fitted into the outer portion of the light cover 42. A mounting portion 45 is provided.
On the other end side of the light attachment portion 45, a spoke cover attachment portion 46 having a cross-sectional shape that fits into the light holes 26a and 26b is projected. A hole 46 a is provided in the approximate center of the spoke cover mounting portion 46. Further, the spoke cover attaching portion 46 is provided with a groove portion 46b in a direction perpendicular to the paper surface of FIG.

  The operation switch 5 has a rectangular parallelepiped shape as shown in FIG. 2, and has a control circuit for controlling the lighting (flashing) method of the light 41 and the like, and faces the outside. A blinking / lighting changeover switch 51 and a power switch 52 are provided. The back surface of the operation switch 5 is fixed to a thin board (not shown). The thin platen is at least larger than the operation switch 5 and has a portion protruding from the operation switch 5. Two operation switch mounting holes are provided in this portion on both sides of the operation switch 5. These two operation switch mounting holes have substantially the same diameter as the operation switch fixing hole 25 shown in FIG. 3, and the operation switch fixing hole 25 is closed when the operation switch 5 is fitted into the notch 23 and the notch 23 is closed. It is provided at a position facing each other.

As shown in FIG. 7, the light unit 4 inserts the light 41 into the light cover 42, attaches light cover fixtures 43 to both ends of the light cover 42, and uses the spoke cover attachment portions 46 of the light cover fixtures 43 for the lights. The electrode cover 41 is attached to the spoke cover 2 by being inserted into and inserted into the holes 26a and 26b and passing the electrode cord 41a through the electrode cord hole 27.
In addition, the operation switch 5 is inserted into the operation board 5 which is fixed to the thin board by pushing the notch 23 open, and a single bolt is passed through the operation switch fixing hole 25 and the operation switch mounting hole. It is attached to the spoke cover 2 by being screwed with the arranged nut. By screwing the bolt and nut in this manner, the notch 23 is closed, the operation switch 5 is attached to the spoke cover 2, and the conical spoke cover 2 is obtained.
In addition, although the formation of the conical spoke cover 2 was difficult, the conical spoke cover can be easily formed according to this embodiment.

8 and 9 show the spoke cover mounting tool 1 of the present embodiment.
As shown in these drawings, the spoke cover mounting tool 1 includes two extending portions 11 having a length substantially equal to the width of the rim 32, and a connecting portion 12 that connects the base ends of the two extending portions 11. Have. The two extending portions 11 and the connecting portion 12 have a certain width and a certain thickness.
The two extending portions 11 are provided in parallel with an interval substantially equal to the thickness of the rim 32.
The distal end portion of the extending portion 11 has a shape that is bent toward the other extending portion 11 side.
The connecting portion 12 includes a plate-like portion 12a extending from the base end of the extending portion 11 toward the base end of the other extending portion 11, and the extending portion 11 between these plate-like portions 12a. It has a U-shaped portion 12b bent to the opposite side.
In this spoke cover mounting tool 1, two small plates 13 are erected from one of the plate-like portions 12 a of the connecting portion 12 on the side opposite to the extending portion 11 side in parallel with the extending portion 11. ing. The two small plates 13 are erected with an interval substantially equal to the thickness of the spoke cover 2.
Between the two small plates 13 of the plate-like portion 12a of the connecting portion 12, there is an axis extending in the length direction of the plate-like portion 12a, and the rectangular surface that is the back surface of the axis is extended to the plate-like portion 12a. A semicircular column 14 having a semicircular cross section is provided.

Next, how to attach the spoke cover 2 to the wheel body 3 using the spoke cover attachment 1 will be described.
This attachment is performed by attaching the spoke cover attachment 1 to the spoke cover 2 and attaching the spoke cover attachment 1 to the wheel body 3.

The spoke cover attachment 1 is attached to the spoke cover 2 by sandwiching the peripheral edge of the spoke cover 2 between two small plates 13 and engaging the semi-column 14 of the spoke cover attachment 1 and the groove 22 of the spoke cover 2. And attach. Since the groove 22 is engaged with the semi-cylindrical body 14, the spoke cover 2 does not rotate with respect to the wheel body 3.
The spoke cover attachment 1 is attached to the wheel body 3 by fixing the rim 32 between the two extending portions 11 by sandwiching the rim 32 from the inner edge thereof. In addition, since the connection part 12 of the spoke cover attachment 1 of this embodiment has the U-shaped part 12b as mentioned above, it is the space | interval between the two extension parts 11 by the open leg part of the bent part. Can be opened more easily.
At this time, the spoke cover mounting tool 1 is mounted in such an orientation that the two small plates 13 are positioned on the outer side of the wheel with respect to the U-shaped portion 12b.

The spoke cover 2 can be attached to the wheel body 3 by using at least two spoke cover attachments 1.
Moreover, if this spoke cover attachment 1 is attached at equal intervals, it can be attached with good balance. For example, when six spoke cover attachments 1 are used, attachment can be performed with a good balance by attaching two groove portions 22 therebetween.
Further, from the viewpoint of emphasizing prevention of rotation of the spoke cover 2 with respect to the wheel body 3, the spoke cover mounting tool 1 may be attached to all the groove portions 22.

  As described above, as shown in FIG. 2, the spoke cover 2 can be attached to and detached from the wheel body 3 by attaching the peripheral edge of the spoke cover 2 to each of the plurality of spoke cover attachments 1 attached to the rim 32. Can be attached to.

The perspective view which shows the wheelchair provided with the wheel main body which attached the spoke cover using the spoke cover attachment tool of this invention. The enlarged view of the wheel main body which attached the spoke cover using the spoke cover attachment tool of this invention. The figure which shows the spoke cover of this invention. The figure which shows the light part of this invention. The figure which shows the light cover of this invention. The figure which shows the light cover fixing tool of this invention. The partial cross section figure which shows the state which attached the light part of this invention to the spoke cover. The perspective view which shows the spoke cover attachment tool of this invention. The front view which shows the spoke cover attachment tool of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Spoke cover attachment tool 2 Spoke cover 3 Wheel body 4 Light part 5 Operation switch 11 Extension part 12 Connection part 12a Plate-shaped part 12b U-shaped part 13 Small plate 14 Semi-cylindrical 21 Exposed hole 22, 46b Groove part 23 Notch 24 Notch Portion 25 Operation switch fixing hole 26a, 26b Light hole 27 Electrode cord hole 31 Tire 32 Rim 33 Hub 41 Light 41a Electrode cord 42 Light cover 43 Light cover fixtures 43a, 44a Hole 44 Projection portion 45 Light attachment portion 46 Spoke cover Mounting part 46a Hole 51 Flashing / lighting switch 52 Power switch

Claims (6)

A wheel having an annular rim to which a tire is attached and having a predetermined width and thickness; a hub located at the center of the rim and serving as an axle; and a plurality of spokes connecting the inner edge of the rim and the hub A spoke cover mounting tool for mounting a spoke cover, which has a shape substantially corresponding to the inner part of the rim, and can cover the spoke, on the main body,
A wheel body attachment means detachably attached to the wheel body;
The spoke cover can be detachably attached to a peripheral portion, and includes a spoke cover attachment means fixed to the wheel body attachment means,
By attaching the spoke cover to each of the plurality of spoke cover attachments attached to the rim, the spoke cover can be detachably attached to the wheel body.
Spoke cover fitting. The wheel body mounting means includes two extending portions having a length substantially equal to the width of the rim, and a connecting portion that connects base ends of the two extending portions,
The extending portion is configured to be parallel to each other with an interval substantially equal to the thickness of the rim, and its distal end portion is bent toward the other extending portion side, The rim is sandwiched from the inner edge between the extended portions, and can be fixed.
The spoke cover attachment according to claim 1. The spoke cover mounting means includes two small plates,
The small plate is erected from the predetermined position of the connecting portion on the center side of the rim when the spoke cover mounting tool is attached to the wheel body, and the two small plates are An interval substantially equal to the thickness of the spoke cover is provided, and the periphery of the spoke cover can be sandwiched and fixed between the small plates.
The spoke cover attachment according to claim 2. The spoke cover fixture is used in combination with the spoke cover provided with one of a concave portion or a convex portion at a predetermined interval on the periphery thereof,
Between the two small plates of the spoke cover attaching means, one of a convex part or a concave part is provided, and the concave part or the convex part of the spoke cover and the convex part or the concave part of the spoke cover attaching means. Is designed to lock
The spoke cover attachment according to claim 3. A wheel having an annular rim to which a tire is attached and having a predetermined width and thickness; a hub located at the center of the rim and serving as an axle; and a plurality of spokes connecting the inner edge of the rim and the hub A spoke cover that is used by being attached to a main body, has a shape substantially corresponding to the inner part of the rim, and can cover the spoke,
It is used in combination with the spoke cover attachment according to claim 4,
On the periphery, one of the concave portion or the convex portion is provided at a predetermined interval.
Spoke cover. When the spoke cover is attached to the wheel body, lighting means is attached to a predetermined position that can be visually recognized from the outside.
The spoke cover according to claim 5.

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