JP6594926B2 - Operation handle - Google Patents

Description

  The present invention relates to an operation handle used to change the position of an object, and more particularly to an operation handle used to change the position of a basketball goal.

  When gymnasiums such as schools and local governments are used for various sporting events such as basketball, volleyball, badminton, table tennis, gymnastics, etc., or used for events other than sports such as lectures and ceremonies There is. Therefore, equipment and fixtures necessary for various sports competitions are stored in a predetermined storage in the gymnasium when not in use, and are carried out from the storage etc. and assembled in a predetermined place when necessary. There are many things.

  On the other hand, basketball goals need to be supported in a cantilevered position on the wall surface of the gymnasium due to the characteristics of the game. From the viewpoint of ensuring sufficient rigidity, the overall shape is large and the weight is high. Designed heavily. Therefore, such as equipment and equipment used in other sports competitions and events, it is not suitable for the mode of assembly every time it is used, and is usually always attached to a high position on the wall surface of the gymnasium Many.

  Therefore, it is known that the basketball goal is fixed to the wall of the gymnasium by attaching it to an extendable support frame so that the basketball goal does not interfere with other sports competitions or various events other than sports competitions. ing. When a basketball game is performed, the support frame is extended and disposed near the edge of the basketball court, and in other cases, the support frame is shortened and positioned near the wall surface. Such expansion and contraction of the support frame is known to be operated by an electric device or operated by an operation handle.

  Patent Document 1 describes that a support frame that supports a basketball goal is configured to be rotatable or vertically movable with respect to a goal post. A locking ring is provided at the lower part of the support frame, and the position of the basketball goal can be moved by hooking an operating handle to the locking ring and turning it.

JP 2011-115477 A

  The operation handle described in Patent Document 1 has a distal end hook formed on the distal end side and a crank-shaped handle portion formed on the proximal end side. It is a connected shape. When the crank-shaped handle part is rotated with the tip hook hooked on the locking ring at the bottom of the support frame, the tip hook rotates simultaneously with the handle part, and with this rotation, the locking ring of the support frame is rotated. Is rotated. Thereby, the shape of a support frame changes and the position of the basketball goal supported by the support frame can be moved to an appropriate position.

  By the way, since the basketball goal is installed at a high position on the wall surface, the retaining ring provided on the support frame is also installed at a high position away from the floor surface. Therefore, the entire length of the operation handle is increased in order to engage the front end hook of the operation handle with the locking ring. In addition, in order to obtain sufficient durability for an operation handle that is frequently used, it is formed of a metal such as iron to ensure rigidity. For this reason, the overall mass of the operation handle is increased, which is problematic for users with relatively weak power, such as women and children, from the viewpoint of operability.

  The present invention has been made to solve such problems existing in the prior art, and an object of the present invention is to provide a lightweight operation handle.

  In order to achieve the above object, the present invention provides an operation handle used to change the position of an object by operating a position change mechanism provided on the object, and comprising a crank-shaped handle portion and And a main body part, one end part of which is connected to the handle part, and an engagement part provided in the position changing mechanism. A gist is provided with a hook portion to be joined, and the main body portion is formed of a fiber reinforced resin.

  The specific gravity of the fiber reinforced resin is smaller than the specific gravity of a metal such as iron or aluminum. Therefore, by configuring the long cylindrical body portion of the operation handle with fiber reinforced resin, the mass of the entire operation handle can be reduced compared to the case where the main body portion is configured with metal such as iron or aluminum. . It is possible to obtain an operation handle that is easy to operate even for a relatively weak user such as a woman or a child.

In the above invention, it is preferable that the handle portion and the hook portion are detachably connected to the main body portion.
In the above invention, the handle portion and the hook portion are preferably made of metal.

  In the above invention, it is preferable that a pipe portion that allows rotation around the axis of the operation handle is attached to an outer surface of the handle portion, and the pipe portion is configured to be removable from the handle portion.

In the above invention, it is preferable that the main body portion has connecting portions at both ends thereof, and the handle portion and the hook portion are connected to the connecting portion.
In the above invention, it is preferable that the handle portion and the hook portion are screwed to the connecting portion.

  According to the present invention, a lightweight operation handle can be obtained.

The front view of the operation handle of this embodiment. (A) is a front view of a main-body part. (B) is sectional drawing explaining the state which decomposed | disassembled the lower end part of the main-body part into the connection part and the resin part. (C) is sectional drawing of the lower end part of a main-body part. The figure explaining a hook part. (A) is a figure explaining a handle part. (B) is the elements on larger scale of the upper side shaft part of a handle part. (C) is the elements on larger scale of the upper side shaft part which shows the state which attached the handle | steering-wheel part to the main-body part. The figure explaining the assembly process of a handle part. (A) is sectional drawing explaining the state by which the hook part was attached to the main-body part. (B) is sectional drawing explaining the state in which the handle | steering-wheel part was attached to the main-body part. The front view which shows the example of a change of a handle | steering-wheel part. Sectional drawing which shows the example of a change of a through-hole. The figure explaining the state which moves a basketball goal up and down using an operation handle.

  Hereinafter, an embodiment in which the present invention is embodied in an operation handle used for changing the position of a basketball goal will be described. The operation handle 1 of this embodiment is used to adjust the position of the basketball goal in the front-rear direction and the up-down direction.

  As shown in FIG. 1, the operation handle 1 has a hook-like hook portion 10 attached to the distal end side of a long rod-like main body portion 20 and a crank-like handle portion 30 attached to the proximal end side of the main body portion 20. It is formed in the state. The hook portion 10 and the handle portion 30 are detachably attached by bolts 40 and nuts 50. Below, the up-down direction of the operation handle 1 and the up-down direction of the hook part 10, the main body part 20, and the handle part 30 are represented by the up-down shown in FIG. The upper side is also referred to as the distal end side, and the lower side is also referred to as the proximal end side.

  As shown in FIG. 9, the basketball goal 2 as an object whose position is changed by the operation of the operation handle 1 includes a support frame 3 fixed to the wall surface W, a backboard 4 attached to the support frame 3, A goal ring 5 attached to the backboard 4 is provided. An engaging portion 7 is attached to the lower end portion of the support frame 3 via a bearing-containing bearing 6. The basketball goal 2 can change the positions of the backboard 4 and the goal ring 5 in the front-rear direction or the vertical direction by changing the shape of the support frame 3. In FIG. 9, the positions when the positions of the backboard 4 and the goal ring 5 are changed downward are indicated by two-dot chain lines. In order to change the positions of the backboard 4 and the goal ring 5 in the front-rear direction or the up-down direction, the hook portion 10 of the operation handle 1 is engaged with the engagement portion 7 attached to the lower end portion of the support frame 3, This is performed by grasping the handle portion 30 and rotating the operation handle 1 about its axis.

  The engaging portion 7 attached to the support frame 3 is configured in two types (not shown). When the hook portion 10 of the operation handle 1 is engaged with one of the engaging portions 7 and rotated, the support frame 3 becomes a wall surface. The position of the backboard 4 and the goal ring 5 in the front-rear direction can be adjusted by extending in a direction away from W or contracting in a direction approaching. Further, when the hook portion 10 of the operation handle 1 is engaged with the other engagement portion 7 and rotated, the support frame 3 moves so as to be displaced in the vertical direction, and the backboard 4 and the goal ring 5 are vertically moved. Can be adjusted. By changing the positions of the backboard 4 and the goal ring 5 in the front-rear direction, the basket goal 2 can be put into a storage state or a use state. Further, by changing the positions of the backboard 4 and the goal ring 5 in the vertical direction, the backboard 4 and the goal ring 5 can be used for a normal basketball game or a mini basketball game. The support frame 3 provided on the basketball goal 2 corresponds to a position change mechanism in the claims.

  As shown in FIG. 2A, the main body 20 has a long cylindrical resin portion 21 made of fiber reinforced resin and a pair of short cylindrical connecting portions 22 joined to both ends of the resin portion 21. is doing. The connection part 22 is formed with metals, such as iron.

  The main body 20 has substantially the same diameter and substantially the same thickness over the entire length. Although the full length of the main-body part 20 is not specifically limited, It is preferable that it is the range of 600-2000 mm. The outer diameter is preferably in the range of 13 to 25 mm. Furthermore, the thickness is preferably in the range of 1 to 3 mm. Since the main body portion 20 is formed within this numerical range, the operation handle 1 has a length that can reach the engaging portion 7 of the support frame 3 of the basketball goal 2 and has sufficient rigidity and durability. Can be provided.

  The total length of the resin portion 21 constituting the main body portion 20 is preferably in the range of 450 to 1800 mm. Moreover, it is preferable that the full length of the connection part 22 which comprises the main-body part 20 is the range of 50-100 mm in all. The outer diameter of the resin portion 21 and the outer diameter of the connecting portion 22 are formed substantially the same. Moreover, the connection part 22 joined to both ends is made into the same length. In a state where the pair of connecting portions 22 are joined to both end portions of the resin portion 21, the total length of the resin portion 21 is preferably in the range of 75 to 90% of the total length of the main body portion 20. By forming the resin part 21 and the connecting part 22 in this numerical range, it is possible to suppress an increase in cost due to the use of the fiber reinforced resin.

  As shown in FIG. 2 (b), thin portions 21 a in which the peripheral surface of the resin portion 21 is thinned are formed at both ends of the resin portion 21. Since the resin part 21 has the same shape on the upper end side and the lower end side of the main body part 20, the resin part 21 and the connection part 22 on the lower end side of the main body part 20 are shown side by side in FIG. FIG. 2C shows a state where the resin portion 21 and the connecting portion 22 on the lower end side of the main body portion 20 are joined.

  The thin portion 21a of the resin portion 21 has a shape obtained by scraping the outer peripheral surface by a certain thickness in a portion having a certain length from the end portion of the resin portion 21. Therefore, the outer diameter of the thin portion 21 a of the resin portion 21 is set to be smaller by 0.3 to 0.6 mm than the outer diameter at other portions of the resin portion 21. In this embodiment, the length of the thin portion 21a of the resin portion 21 in the vertical direction is about 30 mm.

  A conventionally well-known thing can be used for the fiber reinforced resin which forms the resin part 21. FIG. For example, the reinforcing fiber constituting the fiber reinforced resin includes carbon fiber, glass fiber, boron fiber, silicon carbide fiber, steel fiber, aramid fiber, alumina fiber, Tyranno fiber, amorphous fiber, etc. preferable. Further, as the resin constituting the fiber reinforced resin, thermosetting resins such as epoxy resin, polyester resin, phenol resin, polypropylene resin, polyether ether ketone resin, acrylonitrile-butadiene-styrene copolymer (ABS) resin, Examples of the thermoplastic resin include nylon resin, polypropylene resin, polyurethane resin, polystyrene resin, polycarbonate resin, polyamide resin, and polyacetal resin, among which epoxy resin is preferable.

  As shown in FIG. 2B, a thin portion 22 a obtained by thinning the peripheral surface of the connecting portion 22 is formed at one end portion of the connecting portion 22. The thin portion 22 a of the connecting portion 22 has a shape obtained by scraping the inner peripheral surface by a certain thickness at a portion having a constant length from the end of the connecting portion 22. In the present embodiment, the length of the thin portion 22a of the connecting portion 22 in the vertical direction is about 30 mm, and the thickness is 25 to 50% of the thickness at other portions of the connecting portion 22. Note that the upper connecting portion 22 of the main body 20 and the lower connecting portion 22 of the main body 20 have the same shape.

  As shown in FIGS. 2A and 2B, the connecting portion 22 joined to the lower side of the resin portion 21 has a through hole through which a bolt 40 for attaching the handle portion 30 is inserted into the other end portion. 22b is formed so as to penetrate the opposing peripheral surfaces. Similarly, the connecting part 22 joined to the upper side of the resin part 21 has a through hole 22b through which the bolt 40 for attaching the hook part 10 is inserted at the other end so as to penetrate the opposing circumferential surface. Is formed. Two through holes 22b are formed in the vertical direction. The connection part 22 of this embodiment is made of iron.

  As shown in FIG. 2C, in the main body 20, the thin portions 22a of the connecting portions 22 are joined to the thin portions 21a at both ends of the resin portion 21 by an adhesive. The thin-walled portion 21a of the resin portion 21 has a shape obtained by scraping the outer peripheral surface at a portion 30 mm from the end portion of the resin portion 21, and the outer diameter of the thin-walled portion 21a of the resin portion 21 is the other portion of the resin portion 21. The thin portion 22a of the connecting portion 22 has a shape obtained by scraping the inner peripheral surface at a portion 30 mm from the end of the connecting portion 22, and its thickness is set to be small. Yes. Therefore, by joining the thin-walled portions 21a and 22a, the entire main body portion 20 has substantially the same thickness, and the resin portion 21 and the connecting portion 22 are almost flush with each other on the outer peripheral surface and the inner peripheral surface. In addition, the conventionally well-known adhesive agent can be used for the adhesive agent which joins the resin part 21 and the connection part 22. FIG.

  As shown in FIG. 3, the hook portion 10 is formed by bending an iron solid body, and has a shape in which a hook-shaped tip hook 11 is connected to the tip of a linear shaft portion 12. Yes. The shaft portion 12 is attached to the connecting portion 22 so as to be coaxial with the main body portion 20 and extend in the vertical direction. The tip hook 11 is formed on the upper part from the approximately half position in the vertical direction of the hook part 10, and the lower part from the approximately half position in the vertical direction of the hook part 10 is a linear shaft part 12. The tip of the bent hook 11 is chamfered and rounded.

  In the shaft portion 12, in order to connect the hook portion 10 to the connecting portion 22 of the main body portion 20, a through hole 12a for inserting the bolt 40 is formed so as to penetrate the opposing peripheral surfaces. The through holes 12a are formed in two places in the vertical direction. The vertical interval between the two through holes 12 a is the same as the vertical interval between the two through holes 22 b formed in the connecting portion 22. As shown by an arrow in FIG. 3, the hook portion 10 inserts the shaft portion 12 into the connecting portion 22 so that the through hole 12a of the shaft portion 12 and the through hole 22b of the connecting portion 22 are aligned with each other. , 22b, and the bolt 40 is inserted into the main body 20 by tightening the tip of the bolt 40 with a nut 50 via a washer 60. In addition, although the full length of the up-down direction of the hook part 10 is not specifically limited, It is preferable that it is the range of 100-200 mm. The outer diameter is slightly smaller than the inner diameter of the connecting portion 22.

  As shown in FIG. 4A, the handle portion 30 is formed by bending a solid body made of iron and has a crank shape. The bent handle portion 30 includes a linear upper shaft portion 31, a lower shaft portion 32, and a horizontal shaft portion 33 that connects the upper shaft portion 31 and the lower shaft portion 32. Both the upper shaft portion 31 and the lower shaft portion 32 extend in the vertical direction, and the upper shaft portion 31 is connected to the lower connection portion 22 of the main body portion 20 and is coaxial with the main body portion 20. The horizontal shaft portion 33 extends in a direction orthogonal to the upper shaft portion 31 and the lower shaft portion 32, that is, in the horizontal direction.

  The total length of the bent handle part 30 in the vertical direction is not particularly limited, but is preferably in the range of 300 to 600 mm. The lengths of the upper shaft portion 31, the lower shaft portion 32, and the horizontal shaft portion 33 are not particularly limited, but the handle portion 30 of the present embodiment has a vertical length of the upper shaft portion 31, The lower shaft portion 32 is formed longer than the vertical length. Further, the outer diameter is slightly smaller than the inner diameter of the connecting portion 22 of the main body portion 20. The upper shaft portion 31 of the handle portion 30 is a portion that supports the operation handle 1 by gripping with one hand when the operation handle 1 is rotated, and the lower shaft portion 32 of the handle portion 30 is the other portion. This is the part that is gripped by hand and rotated.

  A through hole 30a through which a bolt 40 for connecting to the connecting portion 22 of the main body portion 20 is inserted is formed at the distal end portion of the upper shaft portion 31 so as to penetrate the opposing peripheral surfaces. The through holes 30a are formed at two places in the vertical direction. The vertical interval between the two through holes 30 a is the same as the vertical interval between the two through holes 22 b formed in the connecting portion 22. As shown by an arrow in FIG. 4A, the handle portion 30 has the upper shaft portion 31 inserted into the connecting portion 22, and the through hole 30 a of the upper shaft portion 31 and the through hole 22 b of the connecting portion 22 are matched. The bolt 40 is inserted into the through holes 30 a and 22 b and the tip of the bolt 40 is fastened with the nut 50 via the washer 60 to be attached to the main body 20.

  As shown in FIGS. 4A and 4B, the iron solid body constituting the handle portion 30 is crushed on each of the proximal end side of the upper shaft portion 31 and the distal end side of the lower shaft portion 32. Thus, the stopper 34 is formed. The stoppers 34 are formed at two locations facing each other on the outer peripheral surface of the solid body of the upper shaft portion 31 and the lower shaft portion 32. Further, as shown in FIG. 5, a screw portion 38 is formed inside the lower shaft portion 32 at the lower end, and a bolt 37 is attached via a washer 35 so as to close the lower end of the lower shaft portion 32. It is attached.

  As shown in FIGS. 4A and 4C, a resin-made grip pipe 36 is attached to each of the upper shaft portion 31 and the lower shaft portion 32 so as to cover the outer periphery of the shaft portions 31 and 32. ing. The inner diameter of the gripping pipe 36 is slightly larger than the outer diameter of the shaft portions 31 and 32. Therefore, when the gripping pipe 36 of the upper shaft portion 31 is supported by one hand and the lower shaft portion 32 is rotated, the gripping pipe 36 does not follow the rotation of the upper shaft portion 31 inside. The upper shaft portion 31 can be allowed to rotate. Further, when the lower shaft portion 32 is rotated, the lower shaft portion 32 is allowed to rotate inside the gripping pipe 36. FIG. 4B shows a state in which the grip pipe 36 is not attached to the upper shaft portion 31.

  As shown in FIG. 4C, in the state where the handle portion 30 is attached to the main body portion 20, the lower end of the grip pipe 36 of the upper shaft portion 31 is in contact with the stopper 34 via the washer 35. Further, the upper end of the grip pipe 36 of the upper shaft portion 31 is in contact with the connecting portion 22 of the main body portion 20 via the washer 35. As shown in FIG. 4A, in the lower shaft portion 32 of the handle portion 30, the upper end of the gripping pipe 36 is in contact with the stopper 34 via the washer 35, and the gripping pipe 36 of the lower shaft portion 32. The lower end of this is in contact with the bolt 37 via a washer 35. That is, in the upper shaft portion 31, the grip pipe 36 is positioned by the lower end of the connecting portion 22 and the stopper 34, and in the lower shaft portion 32, the grip pipe 36 is positioned by the stopper 34 and the bolt 37.

  Next, a method for manufacturing the operation handle 1 will be described. The process of manufacturing the operation handle 1 is roughly divided into a process of manufacturing the hook part 10, the main body part 20, and the handle part 30, and an attaching process of attaching these members.

  In order to manufacture the hook portion 10, an iron solid body is bent into a bowl shape, the tip inner peripheral surface of the tip hook 11 is chamfered, and two through holes 12 a are formed in the shaft portion 12. Thus, the hook portion 10 is obtained.

  Similarly, the handle portion 30 is bent into a crank shape by bending an iron solid body, threaded into the base end of the lower shaft portion 32, and two through holes 30a are formed in the upper shaft portion 31. . Then, the bolt 37 is screwed into the threaded screw portion 38 inside the base end of the lower shaft portion 32. Further, stoppers 34 are formed on the proximal end side of the upper shaft portion 31 and the distal end side of the lower shaft portion 32 by crushing. Thereby, the handle | steering-wheel part 30 of the state in which the holding pipe 36 is not attached is obtained. The gripping pipe 36 is formed into a cylindrical shape by resin processing and is attached in the attaching step.

  First, the body 20 is formed by molding a resin portion 21 made of fiber reinforced resin by a conventionally known molding method for molding a hollow cylinder made of fiber reinforced resin. Hereinafter, although detailed explanation is omitted, as a method of forming a hollow cylinder made of fiber reinforced resin, a fiber reinforced resin prepreg in which reinforcing fibers are oriented in a predetermined direction is heated and cured by winding a plurality of layers around a mandrel. Sheet winding method for molding by cooling, Filament winding method for molding by heating, curing and cooling a fiber reinforced resin tape with reinforcing fibers oriented in the axial direction around a mandrel, and strengthening Examples include a braid method in which a cylindrical body is formed by assembling in a braid form using a fiber strong resin string in which fibers are oriented in the axial direction, and this is formed by heating, curing, and cooling.

  First, the obtained hollow cylinder made of fiber reinforced resin is cut into a predetermined length. When the resin portion 21 is subjected to a surface treatment such as painting, the surface of the hollow cylinder is polished, degreased, and then painted and cured. In addition, it is good also as the external appearance as shape | molding, without performing surface treatments, such as coating.

  Then, the resin part 21 is obtained by shaving the outer peripheral surface of the part of predetermined length (this embodiment about 30 mm) from the both ends, and forming the thin part 21a. In this embodiment, the thin part 21a of the resin part 21 is cut so that the outer diameter is 0.5 mm smaller than the outer diameter at other parts of the resin part 21.

  The connecting portion 22 cuts an iron hollow cylinder into a predetermined length, and cuts the inner peripheral surface of a predetermined length portion (about 30 mm in this embodiment) from one end portion to form a thin portion 22a. To do. In the present embodiment, the thickness of the thin portion 22a of the connecting portion 22 is cut so as to be about 40% of the thickness at other portions of the connecting portion 22. Further, two through holes 22b are formed at the other end.

  Next, as shown in FIGS. 2A and 2C, the thin portion 21 a of the resin portion 21 and the thin portion 22 a of the connecting portion 22 are joined with an adhesive, and the connecting portion 22 is joined to both ends of the resin portion 21. The obtained main body 20 is obtained.

  In the attaching process, the hook part 10 is attached to the upper end side of the main body part 20, and the handle part 30 is attached to the lower end side of the main body part 20. As shown in FIG. 5, in order to attach the handle part 30, first, the handle part 30 in a state where the grip pipe 36 is not attached is prepared. Subsequently, the washer 35, the grip pipe 36, and the washer 35 were assembled in this order from the lower end side of the lower shaft portion 32 of the handle portion 30 to the lower shaft portion 32, and the upper washer 35 was formed on the lower shaft portion 32. It abuts on the stopper 34. Further, a bolt 37 is screwed into the screw portion 38 at the lower end of the lower shaft portion 32 to close the lower end of the lower shaft portion 32. Accordingly, the grip pipe 36 is positioned by the stopper 34 and the bolt 37 and is held around the lower shaft portion 32 without falling off the lower shaft portion 32.

  On the other hand, for the upper shaft portion 31, the washer 35, the grip pipe 36, and the washer 35 are assembled in this order from the upper end side of the upper shaft portion 31, and the lower washer 35 is attached to the stopper 34 formed on the upper shaft portion 31. Make contact. Subsequently, the upper end of the upper shaft portion 31 is inserted from the lower end side of the connecting portion 22 of the main body portion 20, and is formed in the through hole 30 a formed in the upper shaft portion 31 of the handle portion 30 and the connecting portion 22 of the main body portion 20. The positions of the through holes 22b are matched. As shown in FIG. 6B, the handle portion 30 is attached to the lower end side of the main body portion 20 by inserting the bolt 40 into the through holes 22 b and 30 a and assembling the washer 60 and the nut 50. At this time, the grip pipe 36 is positioned by the stopper 34 and the lower end of the connecting portion 22 and is held around the upper shaft portion 31.

  To attach the hook portion 10 to the main body portion 20, first, the lower end of the shaft portion 12 of the hook portion 10 is inserted from the upper end side of the connecting portion 22 of the main body portion 20, and the penetration formed in the shaft portion 12 of the hook portion 10. The positions of the holes 12a and the through holes 22b formed in the connecting portion 22 of the main body 20 are matched. As shown in FIG. 6A, the hook portion 10 is attached to the upper end side of the main body portion 20 by inserting the bolt 40 through the through holes 12 a and 22 b and assembling the washer 60 and the nut 50.

Next, the operation of the operation handle 1 of the present embodiment will be described.
The operation handle 1 has a hook-like hook portion 10 attached to the distal end of the main body portion 20 and a crank-like handle portion 30 attached to the proximal end of the main body portion 20. The main body portion 20 has a connecting portion 22 bonded to both ends of the resin portion 21 with an adhesive, and the hook portion 10 and the handle portion 30 are attached to the main body portion 20 with bolts 40 and nuts 50. Therefore, if the hook portion 10 of the operation handle 1 is engaged with the engagement portion 7 of the support frame 3 of the basketball goal 2 and the handle portion 30 of the operation handle 1 is rotated, the rotation of the handle portion 30 is performed. The hook part 10 rotates integrally. As the hook portion 10 rotates, the engaging portion 7 of the support frame 3 of the basketball goal 2 rotates to change the shape of the support frame 3. Thereby, the positions of the backboard 4 and the goal ring 5 change in the front-rear direction and the vertical direction, and the positions of the backboard 4 and the goal ring 5 can be moved.

  The handle portion 30 is formed in a crank shape, and a grip pipe 36 that allows the upper shaft portion 31 and the lower shaft portion 32 to rotate is attached to the outer periphery of the upper shaft portion 31 and the lower shaft portion 32. . Therefore, when the operating handle 1 is rotated by engaging the hook portion 10 with the engaging portion 7 of the support frame 3 of the basketball goal 2, the holding pipe 36 of the upper shaft portion 31 is held with one hand. When the operation handle 1 is supported and gripped with the other hand and the grip pipe 36 of the lower shaft portion 32 is gripped and rotated, the operation handle 1 rotates smoothly around its own axis.

  The operation handle 1 has an iron hook portion 10 and a handle portion 30 attached to a main body portion 20 composed of a resin portion 21 made of fiber reinforced resin and an iron connecting portion 22. The total length of the resin portion 21 is 75 to 90% of the total length of the main body portion 20. For this reason, the entire operation handle 1 is lighter than that made of iron, and the position of the center of gravity is closer to the handle portion. Combined with the fact that the actual mass is light and the position of the center of gravity is close to the hand, the primary moment of the operation handle 1 is reduced, making it easier to realize the lightness of the operation handle 1. Further, the moment of inertia around the handle portion 30 is reduced, and the operation when the operation handle 1 is swung up or when the hook portion 10 is hooked on the engaging portion 7 of the support frame 3 becomes easy.

  The hook portion 10 and the handle portion 30 are attached to the main body portion 20 with bolts 40 and nuts 50. Therefore, the hook portion 10 and the handle portion 30 can be detached from the main body portion 20 by removing the bolt 40 and the nut 50, respectively.

  Further, the grip pipe 36 attached to the lower shaft portion 32 of the handle portion 30 is positioned by a bolt 37 at the lower end of the lower shaft portion 32. The bolt 37 is attached to the lower shaft portion 32 by screwing. Therefore, the grip pipe 36 attached to the lower shaft portion 32 can be detached from the handle portion 30 by removing the bolt 37.

  The grip pipe 36 attached to the upper shaft portion 31 of the handle portion 30 is positioned by the lower end of the connecting portion 22 of the main body portion 20. The main body 20 and the handle 30 can be detached. Therefore, by removing the handle portion 30 from the main body portion 20, the grip pipe 36 attached to the upper shaft portion 31 can be detached from the handle portion 30.

  The thin-walled portion 21a of the resin portion 21 has a shape obtained by scraping the outer peripheral surface at a portion 30 mm from the end portion of the resin portion 21, and the outer diameter of the thin-walled portion 21a of the resin portion 21 is the other portion of the resin portion 21. Is set to be smaller by 0.5 mm than the outer diameter, and the thin portion 22 a of the connecting portion 22 has a shape obtained by scraping the inner peripheral surface at a portion of 30 mm from the end of the connecting portion 22. About 40%. As shown in FIG.2 (c), in the junction part of the resin part 21 and the connection part 22, the thin part 21a and 22a are joined, The whole main-body part 20 becomes substantially the same thickness. At the joint portion between the resin portion 21 and the connecting portion 22, the outer peripheral surface of the main body portion 20 is substantially flush and is a smooth surface with no irregularities. The inner peripheral surface of the main body 20 is also substantially flush.

According to the operation handle 1 of the present embodiment, the following effects can be obtained.
(1) Since the operation handle 1 used for adjusting the position of the basketball goal is used for the engaging portion 7 provided at a high position, the operation handle 1 is an elongate member. The operation handle 1 of the present embodiment has a lighter overall mass because the resin portion 21 of the main body portion 20 which is a part of the operation handle 1 is made of fiber reinforced resin. The operation handle 1 is easy to handle even for relatively weak users such as women and children.

  (2) Due to the presence of the resin part 21, the position of the center of gravity is closer to the handle part as the weight is reduced, and the first moment expressed by the product of the mass and the distance from the handle part 30 to the center of gravity is obtained. Can be small. For this reason, it is possible to realize lightness and to realize ease of operation.

  (3) Since the resin part 21 exists, the moment of inertia of the operation handle 1 near the handle part 30 can be reduced. For this reason, the operation of swinging up the operation handle 1 is facilitated, and the operation when the hook portion 10 is hooked on the engaging portion 7 of the support frame 3 can be performed without any burden.

(4) The resin portion 21 is made of fiber reinforced resin. Therefore, by appropriately setting the fiber orientation direction, axial deflection, rigidity, and the like can be adjusted.
(5) The hook part 10 and the handle part 30 are configured to be detachable from the main body part 20. The hook portion 10 is a member for engaging with the engaging portion 7 and rotating, and the metal is easily peeled off or scraped by rubbing against the engaging portion 7. In addition, the handle portion 30 is a member that is gripped and rotated by the user, and is easily consumed by long-term use. Therefore, by making the hook part 10 and the handle part 30 removable, the hook part 10 and the handle part 30 can be exchanged and can be used as the operation handle 1 for a long time.

  (6) The grip pipe 36 attached to the handle portion 30 is configured to be detachable from the upper shaft portion 31 and the lower shaft portion 32. Since the gripping pipe 36 is made of resin and is a portion that is gripped and rotated by the user, it is easily cracked, worn, or scratched. Therefore, by making the gripping pipe 36 detachable, only the gripping pipe 36 can be replaced instead of the entire handle portion 30. The handle part 30 can be used for a long time.

  (7) The uniqueness of the operation handle 1 can be improved by preparing a plurality of resin-made grip pipes 36 having different colors. For example, the grip pipe 36 of a user's favorite color is attached, the color of the grip pipe 36 is divided by the user when there are a plurality of operation handles 1, or the grip pipe 36 attached to the upper shaft portion 31 and the lower The grip pipe 36 attached to the side shaft portion 32 can be of a different color. Designability can also be improved.

In addition, you may change the said embodiment as follows. Moreover, you may combine the following modified examples suitably.
In the present embodiment, the operation handle 1 is configured to adjust the position of the basketball goal, but is not limited thereto. Any object may be used as long as it is used to change the position of the object by engaging and engaging with the engaging part. For example, it may be used to open and close a tub above the entrance of a store, or may be used to open and close a skylight.

In the present embodiment, the hook portion 10 has a hook shape, but the shape of the hook portion 10 is not limited to this. For example, it may be annular.
-In this embodiment, although the hook part 10 and the handle | steering-wheel part 30 were made removable, it does not need to be removable.

  In the present embodiment, a part of the main body 20 is the resin part 21, but the entire main body 20 may be the resin part 21. In this case, the hook portion 10 and the handle portion 30 may be joined to the main body portion 20 with an adhesive. The entire operation handle 1 may be made of fiber reinforced resin. In this case, if a bent portion such as the hook portion 10 or the handle portion 30 is formed of a braided string of fiber reinforced resin, it is possible to obtain a portion that is less likely to wrinkle.

  -In this embodiment, although the outer diameter of the resin part 21 and the outer diameter of the connection part 22 are formed identically, the outer diameter of the resin part 21 and the outer diameter of the connection part 22 may differ. For example, the outer diameter of the connecting portion 22 may be about 1 mm larger than the outer diameter of the resin portion 21. In this case, the resin portion 21 and the connecting portion 22 may not be substantially flush with each other on the outer peripheral surface and the inner peripheral surface by joining the thin wall portions 21a and 22a.

  In the present embodiment, the stopper 34 is formed only in the lower portion of the upper shaft portion 31 of the handle portion 30, and the upper end portion of the grip pipe 36 is positioned at the lower end portion of the connecting portion 22 of the main body portion 20, It is not limited to this. As shown in FIG. 7, a stopper 34 may be formed on the upper shaft portion 31 and the grip pipe 36 may be positioned by the upper and lower stoppers 34. In this case, after the washer 35 and the gripping pipe 36 are assembled, the stopper 34 is formed on the upper shaft portion 31 by crushing.

  Similarly, a stopper 34 may be formed at the lower portion of the lower shaft portion 32, and the grip pipe 36 of the lower shaft portion 32 may be positioned by the upper and lower stoppers 34 separately from the bolt 37. Also in this case, the stopper 34 is formed by crushing the lower shaft portion 32 after the washer 35 and the gripping pipe 36 are assembled.

  As shown in FIG. 8, the hook portion 10 and the handle portion 30 may be attached to the main body portion 20 with a flat head screw 41 and a nut 50. In this case, the through hole 22 b of the connecting portion 22 is formed in the shape of the head of the flat head screw 41. Although not illustrated, the countersunk screw 41 may be a round countersunk machine screw.

  -In this embodiment, although the thin part 21a of the resin part 21 and the thin part 22a of the connection part 22 were formed in the place about 30 mm from the edge part, it is not limited to this. It may be longer than 30 mm or shorter. It can be set as appropriate in consideration of the bonding strength between the resin portion 21 and the connecting portion 22.

  Further, the outer peripheral surface is shaved so that the outer diameter of the thin portion 21 a of the resin portion 21 is smaller by 0.3 to 0.6 mm than the outer diameter at other portions of the resin portion 21, and the thin portion of the connecting portion 22 Although the case where the inner peripheral surface is shaved so that the thickness of 22a is 25 to 50% of the thickness at other parts of the connecting portion 22 has been described, the present invention is not limited to this. From the viewpoint of ensuring strength and rigidity, it is preferable that the thickness of the thin portion 21 a of the resin portion 21 is thicker than the thickness of the thin portion 22 a of the connecting portion 22. Alternatively, the thin portion 21a of the resin portion 21 may be shaved from the inner peripheral surface, and the thin portion 22a of the connecting portion 22 may be shaved from the outer peripheral surface.

  In the present embodiment, the through holes 12a, 22b, and 30a for attaching the hook portion 10 and the handle portion 30 are formed in two places arranged in the vertical direction, but may be one place or three or more places. Good.

Below, the Example which actualized said embodiment is described.
As the resin portion 21 of the operation handle 1, a hollow cylinder was formed by a sheet winding method using a prepreg made of carbon fiber reinforced resin. The hollow cylinder was formed by using a mandrel having a diameter of 13.2 mm and heating and cooling a prepreg sheet having the configuration shown in Table 1 around the mandrel in order. As the prepreg sheet, all layers, “3252S-17” manufactured by Toray Industries, Inc. (175 g / m ² with a basis weight, fiber content 67%, thickness 0.17 mm) were used.

The hollow cylinder had a total length of 1260 mm, an outer diameter of 16.67 mm, an inner diameter of 13.2 mm, and a mass of 157.0 g. Further, other properties of the formed hollow cylinder are shown in Table 2.

  The outer peripheral surfaces of both end portions of the hollow cylinder were shaved to form a resin portion 21 in which a thin portion 21a having a length of 30 mm was formed. The connecting portion 22 made of iron having the thin-walled portion 22a was joined to both ends of the obtained resin portion 21 with an adhesive to form the main body portion 20.

  Further, the hook portion 10 is attached to the distal end side of the main body portion 20 with bolts 40, nuts 50, and washers 60, and the handle portion 30 is attached to the proximal end side of the main body portion 20 in the manner shown in FIG. A 1976 mm operation handle 1 was obtained.

As a comparative example, an operation handle having a total length of 1973 mm made of iron was prepared.
<Examination of operation handle performance and operability>
For each operation handle, the total mass, the position of the center of gravity, the primary moment with respect to the handle portion, the moment of inertia around the handle portion, and the amount of deflection at the tip when the handle portion was cantilevered were measured. The position of the center of gravity is a distance (m) from the base end position of the handle part, and the moment of inertia is a measured value around the handle part. The results are shown in Table 3.

  The operation handle of the example having the resin portion 21 has a substantially the same overall length, and can achieve a weight reduction of about 1 kg as compared with an operation handle made entirely of iron. The total mass was about 57% of the operation handle of the comparative example.

  The primary moment MR with respect to the handle portion is represented by the product of the total mass M and the gravity center position R from the handle side base end portion, and serves as an index of the feeling of weight felt when the handle portion is held. The primary moment MR with respect to the handle portion was 2.15 kg · m for the operation handle of the comparative example, whereas it was 0.96 kg · m for the operation handle of the example, which was about 45% of the comparative example.

The moment of inertia I around the handle portion serves as an index of the feeling of weight felt when the handle portion is held and the hook portion is operated toward the object. Moment of inertia I about the handle portion, whereas the operating handle of the comparative example was 2.80 kg · ^{m 2,} the operating handle of the embodiment is 1.29 kg · ^{m 2,} about 46% of Comparative Example there were.

  When the handle portion of the operation handle is leveled in a cantilever state, the hook portion is bent by its own weight. In the operation handle of the comparative example, the amount of deflection of the hook portion was about 17 mm. On the other hand, in the operation handle of the embodiment, the self-weight bending of the resin portion alone hardly occurs, and the bending occurs due to the weight of the hook portion, the connecting portion, etc. on the tip side. In the operation handle of the example, the amount of deflection of the hook portion was about 17.5 mm.

From these results, it was possible to realize a weight reduction of about 1 kg and to reduce the feeling of weight when operated by configuring a portion of about 1260 mm of the operation handle having a total length of 1973 mm with a fiber reinforced resin. In addition, the amount of bending of the operation handle of the example was a feeling of bending equivalent to that of a conventionally used iron operation handle, and the operation did not feel uncomfortable. An operation handle with excellent operability was obtained.
<Examination of strength and durability of operation handle>
Next, the strength of the operation handle of the example was examined. When the operation handle is engaged by engaging the hook portion of the operation handle with the engagement portion provided on the basketball goal, torsion torque is always generated in the operation handle. When the torsion torque generated at the maximum when the engaging part of the basketball goal stopped moving was measured, it was about 40 N · m. On the other hand, as a result of measuring the torsional torque at the joint between the thin portion 21a of the resin portion 21 and the thin portion 22a of the connecting portion 22 of the operation handle of the example, it was 201 N · m. The torsional torque at the bolt fixing portion at the handle portion and the hook portion was 89 N · m.

  From these results, it was found that the operation handle of the example had a torsion torque larger than the maximum torsion torque required when moving the basketball goal, and was excellent in strength and durability.

On the other hand, as a result of measuring the bending strength at the resin portion 21, the bending moment at the time of fracture was 13.9 to 15.0 kgf · m. In other words, this is comparable to the strength to break when a weight of 13.9 to 15.0 kgf is loaded at a position 1 m away. It turned out that the operation handle of an Example is excellent also in bending strength.
<Examination of operating handle feeling>
The operation handle of the example was used almost every day for 36 days, mainly focusing on physical education classes in high school and activities in the basketball club. The number of times used for 36 days was 97 times.

  In the questionnaire, many impressions that it was light and easy to handle were obtained. Specifically, the impressions were light and easy to handle, surprised by lightness, smooth movement and good operability, and easy for girls to operate. In addition, no defects such as breakage were found in the resin portion 21 or the connecting portion connecting the main body portion 20 and the hook portion 10 and the handle portion 30.

2 ... Goal for basketball (object), 3 ... Support frame (position changing mechanism), 6 ... engaging portion, 10 ... hook portion, 20 ... main body portion, 21 ... resin portion, 22 ... connecting portion, 36 ... grip pipe (Pipe part).

Claims (6)

An operation handle used for operating a position change mechanism provided on an object to change the position of the object,
And a resin portion formed by a fiber reinforced resin, and the long cylindrical body portion having a metallic connecting portions provided on respective ends of the resin portion,
A metal crank-shaped handle portion connected to the connecting portion on one end side of the main body portion ;
It is connected to the connecting part on the other end side of the main body part, and includes a metal hook part that engages with an engaging part provided in the position changing mechanism,
The axial length of the main body is 600 to 2000 mm,
The axial length of the handle portion is 300 to 600 mm,
The axial length of the hook portion is 100 to 200 mm,
The length of the said resin part is 75 to 90% of the length of the said main-body part, The operation handle characterized by the above-mentioned . An operation handle used for operating a position change mechanism provided on an object to change the position of the object,
And a resin portion formed by a fiber reinforced resin, and the long cylindrical body portion having a metallic connecting portions provided on respective ends of the resin portion,
A crank-shaped handle portion connected to the connecting portion on one end side of the main body portion ;
The hook portion is connected to the connecting portion on the other end side of the main body portion and engages with an engaging portion provided in the position changing mechanism,
At both ends of the resin part, a resin part side thin part whose thickness is reduced is provided, and the connection part is provided with a connection part side thin part whose thickness is reduced,
The operation handle characterized in that the resin part side thin part and the connecting part side thin part are connected, and the main body part is formed to have substantially the same diameter over the entire length . Said handle portion and said hook portion, the operating handle according to claim 1 or 2 is removably coupled from the main body portion. On the outer surface of the handle portion, a pipe portion that allows rotation around the axis of the operation handle is attached,
The operation handle according to claim 1, wherein the pipe portion is configured to be removable from the handle portion.   The said main-body part has a connection part in the both ends, The operation handle as described in any one of Claims 1-4 with which the said handle part and the said hook part are connected with the said connection part. The operation handle according to claim 5, wherein the handle portion and the hook portion are screwed to the connecting portion.