TWI667165B - Split handle - Google Patents

Abstract

The present invention is applied to a split handle of a vehicle, and it is configured to reduce weight without increasing the size of the vehicle. The right handle 23 includes a cylindrical portion 33, a right handle lever portion 25, and a handle lever coupling portion 34. The cylindrical portion 33 has at least one slit portion 32 that divides the cylindrical portion 33 in the circumferential direction and allows elastic deformation of the cylindrical portion 33 in the circumferential direction in a manner capable of fixing the cylindrical portion to the steering shaft, and includes a fiber-reinforced resin that reinforces The resin is formed by combining a plurality of fiber sheets in a state in which a plurality of fiber sheets are stacked in the radial direction so as to have a strength higher than that in the circumferential direction. The handle bar connecting portion 34 includes a fiber-reinforced resin that is laminated in a direction perpendicular to the imaginary line 40 connecting the portion connecting the right handle bar portion 25 and the connecting tube portion 33 In the state of the combination of resin.

Description

Split handle

The invention relates to a separate handle of a vehicle.

As a handle supporting structure for supporting a separate handle, a structure in which a handle bar is supported by a handle holder fitted to a front fork is known. Specifically, as such a handle supporting structure, there is known a configuration (Patent Document 1), that is, a handle holder includes: a base portion that is elastically deformable by a slit and a holding portion that holds a handle bar; And a plurality of arm portions, which connect the holding portion to the base portion. In this configuration, a plurality of arm portions are arranged spaced apart in the circumferential direction of the base portion.

In the configuration disclosed in Patent Document 1, the plurality of arm portions support the handle bar via the holding portion, so that the rigidity of the base portion can be kept low. Thereby, the elastic deformation of the part around the groove in the base part can be tolerated. Therefore, the base portion is elastically deformed by the fastening force of the fastening member, so that the handle holder is fastened to the outer peripheral portion of the front fork. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2012-76484

[Problems to be solved by the invention]

However, in the handle supporting structure of the vehicle disclosed in the above Patent Document 1, metal is used for the base portion (tube portion). Therefore, the weight of a vehicle body equipped with a split handle (split handle) is heavier. In response to this, there is a requirement to reduce the weight of the car body.

The object of the present invention is to obtain a structure capable of achieving weight reduction in a separate handle of a vehicle. [Technical means to solve the problem]

The inventors of the present invention have studied the previous handle supporting structure as disclosed in Patent Document 1 in detail.

In the previous handle supporting structure as disclosed in the above-mentioned Patent Document 1, metal is used for the cylindrical portion. Therefore, when it is desired to increase the rigidity of the handle supporting structure, the handle supporting structure becomes less likely to be elastically deformed. In addition, when it is desired to use a resin to constitute the handle supporting structure while ensuring sufficient strength, the handle supporting structure is enlarged. Therefore, the vehicle becomes larger.

In order to reduce the weight of the vehicle body without increasing the size of the vehicle, the following method may be considered. For example, the characteristics of fiber-reinforced resin may be considered, and fiber-reinforced resin may be used for the barrel portion of the handle supporting structure.

In the handle supporting structure, the cylindrical portion is fixed to the outer peripheral portion of the front fork in an elastically deformed state. Therefore, tensile stress is always applied to the cylindrical portion in the circumferential direction.

Also, in the handle supporting structure, for example, when the input of the same phase is applied to the left and right handle lever portions by a brake operation, the cylindrical portion is applied to rotate toward the front of the vehicle or the rear of the vehicle with the holding portion holding the handle lever as the center force. With such a rotating force, a tensile stress is generated in the circumferential direction of the cylindrical portion. Therefore, the above cylindrical portion is required to have strength against tensile stress generated during brake operation or the like.

Based on the research results described above, the inventors of the present invention thought of the following configuration.

The split handle of one embodiment of the present invention is a split handle that is directly or indirectly fixed to a steering mechanism of a straddle type vehicle. The split handle is provided with: a cylinder portion, which is a cylindrical shape extending in the axial direction, and is directly or indirectly fixed to the steering mechanism in a state of being inserted by the shaft portion of the steering mechanism; (a handlebar portion), which is provided with a grip portion; a handle bar mounting portion, which is connected to one end in the longitudinal direction of the handle bar portion; and a handlebar connecting portion (a handlebar connecting portion), which connects the cylindrical portion with The handle bar mounting portion is connected. The cylindrical portion and the handle bar connecting portion include a plurality of fiber pieces joined by resin in a stacked state, the cylindrical portion has the cylindrical portion broken in the circumferential direction, and the cylindrical portion can be fixed to the steering The manner of the shaft portion of the mechanism allows at least one slit portion of the cylindrical portion to elastically deform in the circumferential direction. The cylindrical portion includes a fiber-reinforced resin formed by bonding the plurality of fiber pieces in a state in which the plurality of fiber sheets are stacked in the radial direction so that the circumferential direction has higher strength than the axial direction. The handle-bar connecting portion includes a fiber-reinforced resin that is stacked in a direction perpendicular to an imaginary line connecting the portion connecting the handle-bar portion and the portion connecting the cylindrical portion In the state, it is combined with resin.

In this way, by laminating a plurality of fiber sheets containing fibers in the radial direction of the cylindrical portion in the cylindrical portion of the split handle, the circumferential strength of the cylindrical portion can be improved.

In addition, by stacking the fiber sheet in a direction perpendicular to an imaginary line connecting the portion connecting the handle bar portion and the cylindrical portion in the handle bar connecting portion connecting the cylindrical portion and the handle shaft portion, The strength of the direction in which the above-mentioned virtual line extends can be improved. In the handle lever connecting portion, when a force is input to the handle lever portion, bending stress is generated in the handle lever connecting portion. By stacking the fiber sheets in the handle bar connecting portion as described above, the strength in the bending direction of the handle bar connecting portion can be improved.

Therefore, the strength of the split handle can be ensured against the bending stress generated by the handle bar mounting part as the center around the handle bar attachment part due to the input of the force to the handle bar part, and the cylindrical part contains metal The previous structure is lighter than seeking separate handles.

In a split handle according to an embodiment of the present invention, the cylindrical portion may include: a cylindrical cylindrical body portion; and a pair of fastening portions, which are on the right side of the slit portion in the circumferential direction and The left side protrudes from the outer peripheral surface of the barrel body portion. Alternatively, one of the pair of fastening portions may have a member to be fastened that can be fastened to the fastening member. Alternatively, the fastened member may be bonded to the cylindrical portion by resin while being wound by a plurality of fiber pieces included in the fiber-reinforced resin constituting the cylindrical portion.

In this way, by including the fastened member in one of the pair of fastening parts in the cylindrical part, it is possible to prevent the creeping of the fastening surface when the pair of fastening parts are fastened by the fastening member The resulting tightening force is reduced.

That is, since the tube portion includes the fiber-reinforced resin formed by combining the fiber sheets with resin, when the pair of fastening portions of the tube portion is fastened by the fastening member, there is a fastening of the above fastening portion The possibility of face change. On the other hand, by providing the fastened member in one of the pair of fastening parts as described above, it is possible to prevent the fastening surface from being hidden when the fastened member is fastened to the fastened member change.

This can prevent the fastening force from decreasing when the pair of fastening portions are fastened by the fastening member.

In addition, by winding the fastened member in a state where a plurality of fiber pieces included in the fiber-reinforced resin constituting the tube portion are wound, and the resin is bonded to the tube portion, the pair of fastenings can be improved The strength of the connection between the part and the barrel body. With this, it is possible to prevent the structure of the connecting portion from changing due to the stress generated at the connecting portion of the pair of fastening portions and the barrel body portion when the fastening member is fastened to the fastened member.

In the split handle according to an embodiment of the present invention, the handle bar coupling portion may protrude from the cylindrical portion toward the axial direction.

In this way, in the split handle fixed with the cylindrical portion relative to the steering shaft, the handle bar connecting portion protrudes from the cylindrical portion in the axial direction, so that the design freedom of the position of the grip portion can be improved.

In a separate handle according to an embodiment of the present invention, the handle bar connecting portion may be solid.

By making the inside of the handle bar connecting portion solid in this way, the rigidity of the handle bar connecting portion can be improved.

In a separate handle according to an embodiment of the present invention, the handle bar connecting portion may be hollow.

By making the inside of the handle bar connecting portion hollow in this way, and forming a solid structure with respect to the handle bar connecting portion, it is possible to reduce the weight of the separate handle.

In the split handle of one embodiment of the present invention, the handle bar connecting portion may have a polyhedral structure or a bubble structure inside.

By having the polyhedral structure or the bubble structure inside the handle bar connecting part, the weight of the handle can be reduced while ensuring the rigidity of the handle bar connecting part.

In the split handle of one embodiment of the present invention, the handle lever portion and the handle lever coupling portion may be separate members.

In the split handle according to an embodiment of the present invention, the handle lever portion and the handle lever coupling portion may be integrated.

In a separate handle according to an embodiment of the present invention, at least a part of the installation position of the handle rod portion relative to the handle rod portion of the handle rod portion is solid.

In this way, by setting at least a part of the handle bar portion to be solid at the mounting position of the mounting part of the handle bar portion, the strength of the handle bar portion at the mounting position can be improved.

In a separate handle according to an embodiment of the present invention, at least a part of the handle bar portion may be hollow except for the mounting position of the mounting component relative to the handle bar portion.

In this way, by making at least a part of the handle lever portion hollow in the portion of the handle lever portion other than the mounting position of the mounting parts, it is possible to seek a split type while ensuring the strength of the handle lever portion at the mounting position Lightweight handle.

In the split handle according to an embodiment of the present invention, the plurality of fiber pieces combined by resin in a stacked state may include fibers containing any one of carbon, glass resin, and aromatic polyamide .

Thereby, while ensuring the strength of the split handle, it is possible to reduce the weight of the split handle as compared with the previous configuration in which the cylindrical portion contains a metal material. In addition, by using aromatic polyamide fibers as the fiber sheet, it is possible to more reliably prevent at least a part of the split handle from being damaged.

The technical terms used in this specification are used for the purpose of defining only specific embodiments, and are not intended to limit the invention with the above technical terms.

The term "and / or" used in this specification includes all combinations of one or more of the listed constituents in association.

In this specification, the use of the terms "including," "comprising," or "having" and their variations are used to specify the features, steps, elements, ingredients, and / or The existence of an equivalent thereof, but may include one or more of the group of steps, actions, elements, components, and / or the like.

In this manual, the terms "installed", "connected", "combined", and / or their equivalents are used in a broad sense, including "direct and indirect" installation, connection, and combination Both. Furthermore, "connected" and "bonded" are not limited to physical or mechanical connections or connections, and may include direct or indirect connections or connections.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.

The terms defined in commonly used dictionaries should be interpreted as having meanings consistent with the meaning in the context of the relevant technology and the present invention, as long as they are not clearly defined in this specification, they should not be idealized or over-formalized Explain the meaning.

In the description of the present invention, it can be understood that there are many techniques and steps disclosed. Each of these has different benefits, and can also be used with more than one of the technologies disclosed separately, or with all as the case may be.

Therefore, in order to be clear, the description of the present invention restricts all possible combinations of unnecessary repetition of each step.

However, the scope of the specification and patent application should be understood and interpreted as all such combinations are within the scope of the invention.

In this specification, the embodiment of the split handle will be described.

In the following description, in order to provide a complete understanding of the present invention, a number of specific examples are described. However, it is obvious to those skilled in the art that the present invention can be implemented even without such specific examples.

Therefore, the following disclosure should be understood as an illustration of the present invention, and is not intended to limit the present invention to the specific embodiments represented by the following drawings or descriptions.

[Definition of straddle type vehicle] In this specification, a straddle type vehicle refers to a vehicle in which a rider rides on the seat part while straddling the seat part. Therefore, the above-mentioned straddle-type vehicle naturally includes a two-wheeled vehicle, and as long as the rider rides on the seat portion while straddling the seat portion, it also includes other vehicles such as a tricycle and a four-wheeled vehicle. In addition, the above-mentioned straddle type vehicle also includes a Sukoda type vehicle.

[Definition of one end and the other end of the handle bar] When the handle bar is divided into two in the center in the longitudinal direction, the end on one side in the longitudinal direction of the handle bar is one end, and the longitudinal direction in the handle bar The end on the other side is the other end.

[Defined directly or indirectly supported by the steering mechanism] In this specification, directly or indirectly supported by the steering mechanism includes not only the case where it is directly connected or connected to the steering mechanism, but also the connection to the steering mechanism via other components. Or link to the situation.

[Definition of latent change] Generally, when a certain load is applied to an object, the deformation of the object stops when it does not continue to deform, but there is a continuous application of a certain load to the object, and the deformation of the object gradually increases with time. The situation. In this specification, this phenomenon is called creep. It is known that resin will undergo creep at room temperature. [Effect of invention]

According to the split type handle of one embodiment of the present invention, it is possible to obtain a structure capable of achieving weight reduction.

Hereinafter, each embodiment will be described with reference to the drawings. In each figure, the same parts are marked with the same symbols, and the description of the same parts is not repeated. In addition, the dimensions of the constituent members in the drawings do not faithfully represent the actual dimensions of the constituent members and the ratio of the dimensions of the constituent members.

Hereinafter, the arrow F in the figure indicates the front direction of the vehicle. The arrow U in the figure indicates the upward direction of the vehicle. The arrow R in the figure indicates the right direction of the vehicle. The arrow L in the figure indicates the left direction of the vehicle. In addition, the directions of front, back, left, and right respectively mean the directions of front, back, left, and right when viewed from a rider driving a vehicle.

(Embodiment 1) <Overall Configuration> FIG. 1 is a left side view showing an outline of the overall configuration of a vehicle 1 according to Embodiment 1. FIG. FIG. 2 is a plan view showing the schematic structure of the vehicle 1. As shown in FIGS. 1 and 2, the vehicle 1 is, for example, a straddle-type vehicle such as a locomotive, and includes a vehicle body 2, a front wheel 3, and a rear wheel 4. The vehicle 1 of the present embodiment is, for example, a tilted vehicle that swings in a tilted posture. That is, the vehicle 1 is inclined in the left direction when turning in the left direction, and is inclined in the right direction when turning in the right direction.

The vehicle body 2 includes a main frame 5, a head pipe 6, a swing arm 7, a seat 8, and a footrest 9.

The head pipe 6 is provided at the front end of the main frame 5. A pair of front forks 10 (shaft portions) are rotatably supported by the head pipe 6 via a steering shaft (not shown). A front wheel 3 is rotatably attached to the lower end of a pair of front forks 10. At the upper ends of the pair of front forks 10, a left handle unit 20 and a right handle unit 21 for steering are supported respectively. Furthermore, the head pipe 6, the steering shaft, and the pair of front forks 10 constitute at least a part of the steering mechanism S.

The swing arm 7 is rotatably attached to the rear of the main frame 5. A rear wheel 4 is rotatably attached to the rear end of the swing arm 7.

The seat portion 8 is provided above the central portion of the vehicle 1 in the front-rear direction. The footrest 9 is provided below the central portion of the vehicle 1 in the front-rear direction. The rider grips the left handle unit 20 and the right handle unit 21 in a state of riding on the seat 8 and placing his feet on the footrest 9, respectively. With this, the rider can turn the vehicle 1.

The pair of front forks 10 includes a pair of left and right cylindrical outer tubes 11 and 12 and cylindrical inner tubes 13 and 14. In the front fork 10, the outer tubes 11, 12 are located at the lower portion, and the inner tubes 13, 14 are located at the upper portion. At the upper end of each of the inner tubes 13 and 14, a left handle holder 26 of the left handle unit 20 and a right handle holder 27 of the right handle unit 21 are fixed.

<Left Handle Unit> FIG. 3 is a diagram showing a schematic structure of the left handle unit 20. FIG. 3 is a view of the left handle unit 20 viewed from above the vehicle 1. As shown in FIG. 3, the left handle unit 20 has a left handle 22, a clutch lever 50, a bracket 51, a left switch box 52, and a grip 53.

The left handle 22 is a separate handle separated from the right handle 23 described below. That is, the left handle 22 and the right handle 23 are independently fixed to the upper end of the inner tube 13 of the front fork 10.

The left handle 22 has a left handle bar 24 (handle bar) and a left handle holder 26. The left handle lever 24 and the left handle holder 26 are integrally formed.

An end (right end) on one side in the longitudinal direction of the left handle lever 24 is connected to the left handle holder 26. That is, the left handle lever 24 extends from the left handle holder 26 in the left direction.

The left handle holder 26 is formed in an annular shape. The left handle holder 26 is fixed to the upper end of the inner tube 13 of the front fork 10 in a state of penetrating through the upper end. Thereby, the left handle 22 is fixed to the upper end of the inner tube 13 of the front fork 10.

The left handle 22 has the same structure as the right handle 23 described below except that the left and right are opposite.

The bracket 51 and the left switch box 52 are attached to the left handle lever 24. The clutch lever 50 is rotatably attached to the left handle 22 via a bracket 51. That is, the left handle 22 supports the clutch lever 50, the bracket 51, and the left switch box 52.

The bracket 51, the left switch box 52 and the grip portion 53 are mounting parts in the left handle 22.

<Right Handle Unit> FIG. 4 is a diagram showing a schematic configuration of the right handle unit 21. This FIG. 4 is a view of the right handle unit 21 viewed from above the vehicle 1. As shown in FIG. 4, the right handle unit 21 has a right handle 23, a brake lever 55, a brake master cylinder 56, a right switch box 57, a throttle housing 58, and a grip portion 59.

The right handle 23 is a separate handle separated from the left handle 22. That is, the right handle 23 and the left handle 22 are independently fixed to the upper end of the inner tube 14 of the front fork 10.

The right handle 23 has a right handle lever 25 (handle lever) and a right handle holder 27. The right handle lever 25 and the right handle holder 27 are integrally formed.

An end portion (left end portion) of one side in the longitudinal direction of the right handle lever portion 25 is connected to the right handle holder 27. That is, the right handle lever 25 extends from the right handle holder 27 in the right direction.

The right handle holder 27 is formed in an annular shape. The right handle holder 27 is fixed to the upper end of the inner tube 14 of the front fork 10 in a state of penetrating through the upper end. Thereby, as shown in FIG. 6, the right handle 23 is fixed to the upper end of the inner tube 14 of the front fork 10.

The detailed structure of the right handle 23 is described below. In addition, the right handle 23 and the left handle 22 have the same structure except that the left and right are opposite.

As shown in FIG. 4, the master brake cylinder 56, the right switch box 57 and the throttle housing 58 are attached to the right handle lever 25. The brake lever 55 is rotatably attached to the right handle 23 via the master cylinder 56. That is, the right handle 23 supports the brake lever 55, the brake master cylinder 56, the right switch box 57 and the throttle housing 58.

The master cylinder 56, the right switch box 57, the throttle housing 58 and the grip portion 59 are mounting parts in the right handle 23.

<Split handle> FIG. 5 is a perspective view of the right handle 23 (split handle) viewed from above and behind the vehicle body. In addition, as described above, the left handle 22 and the right handle 23 have the same structure except that the left and right are opposite. Therefore, in the following, only the right handle 23 will be described.

As shown in FIG. 5, the right handle 23 has a right handle lever 25 and a right handle holder 27. The right handle lever portion 25 and the right handle holder 27 are made of resin using carbon fiber-containing fiber sheets (for example, epoxy resin, vinyl ester, phenol resin, polyamide, polypropylene, polyphenylene sulfide, etc .; about the following The resin in the description is also the same) The carbon fiber reinforced resin reinforced is integrally formed. The above-mentioned fiber sheet means a member formed into a sheet shape (planar shape) by braiding and reinforcing fibers, for example.

<Handle bar part> The right handle bar part 25 is a cylindrical member. The right handle lever 25 extends from the right handle holder 27 in the right direction. That is, the left end portion of the right handle lever portion 25 which is one end in the longitudinal direction is connected to the right handle holder 27.

The right handle bar portion 25 is bonded with resin in a state where fiber sheets containing carbon fibers are stacked in the radial direction. That is, the right handle lever 25 includes carbon fiber reinforced resin reinforced with carbon fiber.

On the outer peripheral surface of the right handle lever portion 25, a master brake cylinder 56, a right switch box 57, a throttle housing 58 and a grip portion 59 are attached. Specifically, the right portion of the right grip lever 25 in the longitudinal direction is covered with the grip portion 59 to the right of the center portion. A brake master cylinder 56, a right switch box 57, and a throttle housing 58 are installed in the longitudinal direction of the right handle lever portion 25 closer to the right handle holder 27 than the center portion.

By stacking the fiber pieces in the radial direction in the right handle bar 25 as described above, the right handle bar can be secured with respect to the weight of each component mounted on the right handle bar 25 and the force input to the right handle bar 25 The strength of section 25. <Handle holder> The right handle holder 27 is an annular member. As shown in FIG. 6, the right handle holder 27 is fixed to the upper end of the inner tube 14 of the front fork 10 in a state where it passes through a cylinder 33 described below.

In detail, as shown in FIG. 5, the right handle holder 27 includes a holding portion 31 (handle bar mounting portion), a cylindrical portion 33, and a handle bar coupling portion 34.

In the present embodiment, the cylindrical portion 33 has: a cylindrical cylindrical body portion 35 extending in the cylindrical axis direction (axial direction); and a pair of fastening portions 36, 37, etc., facing from the cylindrical body portion 35 It projects radially outward. The barrel body portion 35 is provided with a slit portion 32 extending in the barrel axis direction at least at one location in the circumferential direction (one location in the present embodiment). The slit portion 32 extends from the end on one side of the above-mentioned cylinder axis direction to the end on the other side of the cylinder body portion 35. With this, the barrel body portion 35 is divided by the slit portion 32 in the circumferential direction. In the barrel body portion 35, the circumferential end portions facing the slit portion 32 are circumferential end portions 33a, 33b. That is, the slit portion 32 is formed between the pair of circumferential end portions 33a, 33b.

The pair of fastening portions 36 and 37 are provided such that the pair of circumferential end portions 33 a and 33 b protrude outward in the radial direction of the barrel body portion 35. That is, the cylindrical portion 33 has a pair of fastening portions 36 and 37 arranged in the circumferential direction on the left and right sides of the slit portion 32. The pair of fastening portions 36 and 37 are formed integrally with the barrel body portion 35.

As shown in FIG. 8, one of the pair of fastening portions 36 and 37 has a cylindrical nut 38 (fastened member) inside. The nut 38 is disposed in a fastening portion 36 so that the axis extends in a direction tangent to the outer peripheral surface of the barrel body portion 35 when the barrel body portion 35 is viewed from the barrel axis direction. That is, the axis of the nut 38 extends in the direction in which the pair of fastening portions 36 and 37 are arranged on the outer peripheral surface of the barrel body 35.

The other fastening part 37 of the pair of fastening parts 36 and 37 has a through hole 37a. The through hole 37a penetrates the other fastening portion 37 in the direction of a tangent to the outer peripheral surface of the barrel body portion 35 when the barrel body portion 35 is viewed from the barrel axis direction. That is, the axis of the through hole 37a extends in the tangential direction.

The nut 38 and the through hole 37a are provided in the pair of fastening portions 36, 37 so that their axes are aligned.

In the above configuration, the bolt 39 (fastening member) penetrating the through-hole 37a of the other fastening portion 37 of the pair of fastening portions 36, 37 is fastened to the nut provided in the fastening portion 36 38. The pair of fastening portions 36 and 37 can be connected. The pair of fastening portions 36 and 37 are connected in a state where the upper end portion of the inner tube 14 of the front fork 10 penetrates the barrel body portion 35. With this, the right handle holder 27 can be fixed to the upper end of the inner tube 14.

By connecting the pair of fastening portions 36 and 37 as described above, compared with the case where the pair of fastening portions 36 and 37 is not connected, the circumferential end portions 33 a and 33 b of the barrel body portion 35 can be brought closer to each other. With this, tensile stress is generated in the cylindrical portion 33 in the circumferential direction.

In addition, when the pair of fastening portions 36 and 37 are connected by the bolt 39 as described above, the pair of fastening portions 36 and 37 is bent and deformed so that the front end portions are in close contact. Therefore, bending stress is generated at the base end portions of the pair of fastening portions 36 and 37. That is, tensile stress is generated at the base end portions of the pair of fastening portions 36 and 37.

The barrel body portion 35 is bonded with resin in a state where fiber sheets containing carbon fibers are stacked in the radial direction. That is, the barrel body portion 35 contains carbon fiber reinforced resin obtained by reinforcing the resin with carbon fiber.

By stacking the fiber sheets in the radial direction in the cylindrical body portion 35 as described above, the circumferential strength of the cylindrical body portion 35 can be improved. Thereby, the strength of the cylinder body 35 can be ensured against the tensile stress generated in the cylinder body 35 in the circumferential direction when the pair of fastening portions 36 and 37 are connected.

The pair of fastening portions 36 and 37 are bonded with resin in a state where the fiber sheets containing carbon fibers are stacked from the inside toward the outside. That is, the pair of fastening portions 36 and 37 each include carbon fiber reinforced resin reinforced with carbon fiber.

The fiber pieces of the pair of fastening portions 36 and 37 are integrated with the fiber pieces of the barrel body portion 35. That is, the fiber sheet of the fiber-reinforced resin constituting the pair of fastening portions 36 and 37 is a part of the fiber sheet of the fiber-reinforced resin constituting the cylindrical portion 33.

In addition, in a fastening portion 36, a fiber sheet is stacked with respect to the nut 38. The nut 38 is bonded to the cylindrical portion 33 with resin in a state where the fiber sheet included in the carbon fiber reinforced resin constituting the cylindrical portion 33 is wound. With this, the nut 38 can be firmly fixed to the cylindrical portion 33.

By integrating the fiber pieces of the pair of fastening portions 36 and 37 and the fiber piece of the barrel body portion 35 as described above, the strength of the connection portion between the pair of fastening portions 36 and 37 and the barrel body portion 35 can be improved. Therefore, the strength of the base end portion of the pair of fastening portions 36 and 37 can be improved. Thereby, the strength of the connecting portion can be ensured against the tensile stress generated at the connecting portion between the base end portion of the pair of fastening portions 36, 37 and the barrel body portion 35 when the pair of fastening portions 36, 37 are connected .

The holding portion 31 has a recess (not shown) into which one end (left end) of the right handle lever 25 can be inserted. That is, the holding portion 31 is configured to be able to hold the right grip lever portion 25 in a cylindrical shape. The holding portion 31 supports the outer side of the barrel body portion 35 in such a manner that the length direction of the right handle lever portion 25 coincides with the direction of the tangent to the outer peripheral surface of the barrel body portion 35 when the barrel body portion 35 is viewed from the barrel axis direction Right hand lever 25. Here, the longitudinal direction of the right handle lever portion 25 and the direction of the tangent to the outer peripheral surface of the barrel body portion 35 when the barrel body portion 35 is viewed from the above-mentioned barrel axis direction coincide not only includes the case of complete agreement, but also includes When the cylinder body 35 is viewed in the direction, the angle between the longitudinal direction of the right handle lever 25 and the tangent line is 45 degrees or less.

The holding portion 31 is bonded with resin in a state where a fiber sheet containing carbon fibers is stacked in a direction perpendicular to the axial direction of the right handle lever portion 25. That is, the holding portion 31 includes a carbon fiber-reinforced resin reinforced with carbon fiber.

Thereby, the strength of the holding portion 31 can be secured against the stress generated in the holding portion 31 due to the input of the force to the right handle lever portion 25.

As shown in FIG. 5, the handle bar connecting portion 34 connects the cylindrical portion 33 and the holding portion 31. That is, the handle bar coupling portion 34 protrudes radially outward from the outer peripheral surface of the barrel body portion 35. The handle bar connecting portion 34 is provided so that the holding portion 31 and the barrel body portion 35 overlap when viewed from the radial direction of the barrel body portion 35 (direction orthogonal to the barrel axis).

The handle bar connecting portion 34 is bonded with resin in a state where a fiber sheet containing carbon fibers is stacked in a direction perpendicular to the virtual line 40, and the virtual wire 40 connects the handle bar connecting portion 34 and the holding portion 31 The part is connected to the part where the handle bar connecting part 34 and the barrel body part 35 are connected. That is, the handle bar connecting portion 34 includes carbon fiber reinforced resin obtained by reinforcing the resin with carbon fiber. Furthermore, the above-mentioned connected portion means the central portion when the connected portion is viewed from the direction of connection.

In the present embodiment, the handle bar connecting portion 34 contains carbon fiber reinforced resin up to the inside and has a so-called solid structure.

By configuring the handle bar connecting portion 34 with carbon fiber reinforced resin as described above, the strength of the handle bar connecting portion 34 can be ensured against the stress generated in the handle bar connecting portion 34 due to the input of the force to the right handle bar portion 25.

In the present embodiment, by forming the right handle holder 27 by using carbon fiber reinforced resin reinforced with carbon fiber by resin, the weight of the vehicle body can be reduced without increasing the size of the vehicle.

Furthermore, by configuring the right handle holder 27 with carbon fiber reinforced resin obtained by reinforcing carbon fiber with resin, it is possible to ensure the strength necessary for each part of the right handle holder 27.

For example, when an input is applied to the right handle lever 25 by a brake operation, a force is applied to the cylinder 33 to rotate toward the front of the vehicle or the rear of the vehicle around the holding portion 31 that holds the right handle lever 25. With such a rotational force, tensile stress is generated in the cylinder body portion 35 in the circumferential direction. On the other hand, by stacking the fiber sheets containing carbon fibers in the radial direction in the tube body portion 35, the circumferential strength can be improved. Therefore, the strength of the barrel body 35 can be ensured against the tensile stress generated in the barrel body 35 during the brake operation.

The structure of the right handle 23 has been described above. The left handle 22 also has the same structure as the right handle 23 except that the left and right are opposite. Therefore, the same effect as the right handle 23 can be obtained by the configuration of the left handle 22.

(Embodiment 2) FIG. 7 shows the configuration of the right handle 123 of Embodiment 2. FIG. 7 is a perspective view of the right handle 123 viewed from above and behind the vehicle 1. The right handle 123 in this embodiment is viewed from the radial direction of the barrel body portion 35, at least a part of the holding portion 131 is located outside of the barrel body portion 35 in the direction of the barrel axis, and the handle bar coupling portion 134 faces the barrel body portion 35 The point where the above-mentioned tube axis direction extends outward is different from the configuration of the right handle 23 of the first embodiment. In the following, the same components as those of the first embodiment are denoted by the same reference numerals and the descriptions are omitted, and only the parts that differ from the configuration of the first embodiment will be described.

In addition, in the present embodiment, as in the first embodiment, the right handle and the left handle have the same structure except for the opposite points. Therefore, in the following, only the right handle will be described.

The right handle 123 has a right handle lever 25 and a right handle holder 127. The right handle holder 127 includes a cylindrical portion 33, a holding portion 131, and a handle bar coupling portion 134.

The holding portion 131 is cylindrical. The holding portion 131 is provided on the outer side of the barrel body portion 35 and is offset from the barrel body portion 35 in the above-mentioned barrel axis direction. That is, at least a part of the holding portion 131 is located on the outside of the cylinder body portion 35 in the above-mentioned cylinder axis direction when viewed from the radial direction of the cylinder body portion 35.

The holding portion 131 is bonded with resin in a state where a fiber sheet containing carbon fibers is stacked in a direction perpendicular to the axis direction of the right handle lever 25. That is, the holding portion 131 includes carbon fiber-reinforced resin reinforced with carbon fiber.

With this, the strength of the holding portion 131 can be secured against the stress generated in the holding portion 131 due to the input of the force to the right handle lever portion 25.

The handle bar connecting portion 134 connects the outer peripheral surface of the tube body portion 35 to the holding portion 131. Therefore, the handle bar coupling portion 134 protrudes radially outward from the outer peripheral surface of the barrel body portion 35 and extends in the above-mentioned barrel axis direction of the barrel body portion 35. That is, the handle bar connecting portion 134 extends outward from the cylindrical portion 33 in the above-mentioned cylindrical axis direction.

The handle bar connecting portion 134 is bonded with resin in a state in which a fiber sheet containing carbon fibers is stacked in a direction perpendicular to the virtual line 140, and the virtual wire 140 connects the handle bar connecting portion 134 and the holding portion 131 The center of the part is connected to the center of the part where the handle bar connecting part 134 and the cylindrical part 33 are connected. That is, the handle bar connecting portion 134 includes carbon fiber reinforced resin reinforced with carbon fiber. Furthermore, the center of the above-mentioned connected parts refers to the center when the connected parts are viewed from the connection direction.

In this embodiment, as in the first embodiment, the handle bar connecting portion 134 includes carbon fiber reinforced resin up to the inside, and has a so-called solid structure.

By configuring the handle bar connecting portion 134 with carbon fiber reinforced resin as described above, the strength of the handle bar connecting portion 134 can be ensured against the stress generated in the handle bar connecting portion 134 due to the input of the force to the right handle bar portion 25.

In the present embodiment, the handle bar connecting portion 134 protrudes from the barrel main body portion 35 in the direction of the barrel axis, so that the design freedom of the arrangement of the right handle 123 can be improved. Therefore, with the configuration of this embodiment, it is possible to increase the design freedom of the arrangement of the handlebars while reducing the weight of the vehicle body without increasing the size of the vehicle.

The structure of the right handle 123 has been described above. The left handle has the same structure as the right handle 123 except that the left and right are opposite. Therefore, the same effect as the right handle 123 can be obtained by the configuration of the left handle.

(Embodiment 3) FIG. 9 is a schematic view of the state where the right handle 23 in Embodiment 1 is attached to the front fork 10 from the rear of the vehicle 1. FIG. In this embodiment, the right handle holder 27 is fitted to the front fork 10 under the top bridge 15.

In addition, in the present embodiment, as in the first embodiment, the right handle and the left handle have the same structure except that the left and right are opposite. Therefore, in the following, only the right handle will be described.

As shown in FIG. 9, by fitting the right handle holder 27 to the front fork 10 below the roof beam 15, the weight of the vehicle body can be improved without increasing the size of the vehicle, and the left handle unit and the right handle can be raised Design freedom for the location of the unit.

(Other Embodiments) In the above, the embodiments of the present invention have been described, but the above embodiments are only examples for implementing the present invention. Therefore, it is not limited to the above-mentioned embodiment, and the above-mentioned embodiment can be implemented with appropriate changes without departing from the gist thereof.

In the above embodiments, the vehicle is a locomotive. However, the vehicle is not limited to a locomotive, but may also be a three-wheeled vehicle or a four-wheeled vehicle. In addition, the above-mentioned vehicle is not limited to a tilted vehicle, but may be a vehicle other than a tilted vehicle.

In each of the above-mentioned embodiments, the slit portion provided in the cylindrical portion 33 of the right handle holder 27 is one portion. However, a plurality of slits may be provided in the cylindrical portion in the circumferential direction.

In the above embodiments, the left handle unit 20 and the right handle unit 21 are attached to the sleeve-type front fork 10. However, the left handle unit and the right handle unit can also be mounted on parts other than the front fork, such as the top beam.

In the above embodiments, the front fork 10 is exemplified by a so-called upright fork, but the front fork may be a so-called inverted fork.

Furthermore, the above-mentioned upright fork refers to a type of sleeve-type suspension unit, and is a suspension unit in which the inner tube is located above and the outer tube is located below.

In addition, the above-mentioned inverted fork refers to a type of sleeve-type suspension unit, and is a suspension unit in which the inner tube is located below and the outer tube is located above.

In the above embodiments, the front fork 10 as a sleeve-type suspension unit is used as a front wheel tire suspension method. However, as a front wheel tire suspension method, instead of the front fork, a link type suspension unit, a swing arm type suspension unit, or the like may be used.

In the above embodiments, the right handles 23 and 123 and the left handle 22 include carbon fiber reinforced resin using carbon fiber. However, in the right handle and the left handle, the right handle bar and the left handle bar may also contain other materials such as metal or resin. In addition, as the fiber sheet of the fiber-reinforced resin used in the right handle and the left handle, fibers other than carbon, such as aromatic polyamide, glass, cellulose, etc., can also be used. In addition, the plurality of fiber sheets used in the fiber-reinforced resin may also contain different materials. Furthermore, the resin of the fiber-reinforced resin used for the right handle and the left handle may be any type of resin as long as it can bind to the fiber.

In the above embodiments, the right handles 23 and 123 and the left handle 22 include carbon fiber-reinforced resin reinforced with a fiber sheet containing carbon fiber. However, the right handle and the left handle may be formed of fiber-reinforced resin that uses fibers in an unwoven state instead of fiber sheets. In addition, the above-mentioned fiber is a specific length (for example, 1 mm) or more, and may be a continuous fiber or a discontinuous fiber.

In the above embodiments, the right handles 23 and 123 and the left handle 22 include carbon fiber-reinforced resin reinforced with a fiber sheet containing carbon fiber. However, the right handle and the left handle may be formed of a composite material in which a carbon fiber-reinforced resin layer reinforced with a fiber sheet and a foamed resin layer containing a foamed synthetic resin are stacked in the thickness direction. The composite material has a pair of the carbon fiber reinforced resin layers, and the material of the foamed resin layer is disposed between the carbon fiber reinforced resin layers. By forming the structure using the above-mentioned composite material, it is possible to achieve weight reduction compared to the case where the structure is formed using only the carbon fiber-reinforced resin layer, and the thickness of the structure wall can be easily changed. Furthermore, as the foamed synthetic resin of the foamed resin layer, a resin capable of absorbing vibration can also be used.

In the above embodiments, the handle bar connecting portions 34 and 134 have a solid structure. However, the handle bar connecting portion may have a hollow structure, or may include a polyhedral structure. Polyhedral structure usually means honeycomb structure, quadrangular cylinder, triangular cylinder, Weaire-Phelan structure, truncated octahedral structure, rhombic dodecahedron structure, continuous bubble structure, independent bubble structure The two-dimensional or three-dimensional three-dimensional structure, but not limited to these examples, includes a structure having a plurality of faces. Furthermore, the bubble structure may be a continuous bubble structure or an independent bubble structure. In addition, the material of the polyhedral structure is not limited to fiber-reinforced resin.

In each of the above-mentioned embodiments, the left handle bar 24 and the right handle bar 25 are configured separately from the handle bar coupling parts 34 and 134. However, at least one of the left handle bar portion and the right handle bar portion may be formed integrally with the handle bar coupling portion.

In the above embodiments, the left handle bar 24 and the right handle bar 25 are cylindrical and hollow. However, at least one of the left handle bar portion and the right handle bar portion may be solid at least a part of the mounting position of the mounting part. Thereby, the strength of the handle bar at the above-mentioned mounting position can be improved. In addition, at least one of the left handle bar portion and the right handle bar portion may be hollow at least partially except for the mounting position of the mounting component. This makes it possible to reduce the weight of the handle while ensuring the strength of the handle bar at the installation position.

1‧‧‧ Vehicle (Saddle type vehicle)

2‧‧‧car body

3‧‧‧Front wheel

4‧‧‧rear wheel

5‧‧‧Main frame

6‧‧‧Head tube

7‧‧‧ Swing arm

8‧‧‧ seat

9‧‧‧footrest

10‧‧‧Fork (shaft part)

11‧‧‧Outer tube

12‧‧‧Outer tube

13‧‧‧Inner tube

14‧‧‧Inner tube

15‧‧‧top beam

20‧‧‧Left handle unit

21‧‧‧Right handle unit

22‧‧‧Left handle

23‧‧‧Right handle

24‧‧‧Left handle lever (handle lever)

25‧‧‧Right handle lever (handle lever)

26‧‧‧Left handle holder

27‧‧‧Right handle holder

31‧‧‧Holding part (handle bar mounting part)

32‧‧‧Slit

33‧‧‧Cylinder

33a‧‧‧Circumferential end

33b‧‧‧Circumferential end

34‧‧‧Handle bar connecting part

35‧‧‧Cylinder body

36‧‧‧Tightening Department

37‧‧‧Tightening Department

37a‧‧‧Through hole

38‧‧‧ Nut (fastened member)

39‧‧‧bolt (fastening member)

40‧‧‧Imaginary line

50‧‧‧clutch lever

51‧‧‧Bracket (installation parts)

52‧‧‧Left switch box (installation parts)

53‧‧‧ Grip (installation parts)

55‧‧‧brake lever

56‧‧‧Master cylinder (installation parts)

57‧‧‧Right switch box (installation parts)

58‧‧‧ throttle valve housing (installation parts)

59‧‧‧ Grip (installation parts)

123‧‧‧Right handle

127‧‧‧Right handle holder

131‧‧‧ Keeping Department

134‧‧‧Handle bar connecting part

140‧‧‧Imaginary line

F‧‧‧arrow

L‧‧‧arrow

R‧‧‧arrow

S‧‧‧Steering mechanism

U‧‧‧arrow

FIG. 1 is a left side view showing a schematic configuration of a locomotive equipped with a split handle according to an embodiment of the present invention. 2 is a plan view showing a schematic configuration of a locomotive equipped with a split handle according to an embodiment of the present invention. Fig. 3 is a schematic diagram showing a schematic configuration of the left handle unit in the first embodiment. 4 is a schematic diagram showing a schematic configuration of the right handle unit in the first embodiment. 5 is a perspective view of the split handle in the first embodiment viewed from above and behind the vehicle body. FIG. 6 is a perspective view of the state where the split handle in the first embodiment is attached to the front fork from above and behind. 7 is a perspective view of the split handle in Embodiment 2 viewed from above and behind the vehicle body. FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 5. 9 is a schematic view of the state in which the split handle in Embodiment 3 is attached to the front fork from the rear of the vehicle body. 10 is a diagram showing a schematic structure of a vehicle and a split handle, and a schematic structure of a fastening portion of the split handle, respectively.

Claims (11)

A separate handle, which is directly or indirectly fixed to the steering mechanism of a straddle type vehicle, and is provided with: a cylindrical portion, which is a cylindrical shape extending in the axial direction, and is inserted through the shaft portion of the steering mechanism The state is directly or indirectly fixed to the steering mechanism; a handle bar portion, which is provided with a grip portion; a handle bar mounting portion, which connects an end portion of the handle bar portion on one side in the longitudinal direction; and a handle bar coupling portion, It connects the cylindrical part and the handle bar mounting part; and the cylindrical part and the handle bar connecting part include a plurality of fiber pieces combined by resin in a stacked state, the cylindrical part has the cylindrical part At least one slit portion that is circumferentially divided and allows elastic deformation of the cylindrical portion in the circumferential direction in such a manner that the cylindrical portion can be fixed to the shaft portion of the steering mechanism and includes a fiber-reinforced resin The plurality of fiber pieces are combined with resin in a state where the plurality of fiber sheets are stacked in the radial direction in a manner that has a strength higher than the axial direction in the circumferential direction; the handle bar connecting portion A fiber-reinforced resin is used which utilizes the resin in a state where the plurality of fiber pieces are stacked in a direction perpendicular to an imaginary line connecting the portion connecting the handle bar portion and the portion connecting the cylindrical portion To be combined. The split handle according to claim 1, wherein the cylindrical portion has: a cylindrical cylindrical body portion; and a pair of fastening portions equal to the left and right sides of the slit portion in the circumferential direction from the outer peripheral surface of the cylindrical body portion Protruding; one of the pair of fastening parts has a fastened member that can be fastened with a fastening member, the fastened member is attached to the plurality of the fiber-reinforced resins constituting the cylindrical portion In a state where the fiber sheet is wound, it is bonded to the above-mentioned tube portion with resin. The split handle of claim 1, wherein the handle bar connecting portion protrudes from the cylindrical portion toward the axial direction. The split handle according to any one of claims 1 to 3, wherein the handle bar connecting portion is solid. The split handle according to any one of claims 1 to 3, wherein the handle bar connecting portion is hollow. The split handle according to any one of claims 1 to 3, wherein the handle bar connecting portion has a polyhedral structure or a bubble structure inside. The split handle according to any one of claims 1 to 3, wherein the handle lever portion and the handle lever coupling portion are separate members. The split handle according to any one of claims 1 to 3, wherein the handle lever portion is integrated with the handle lever coupling portion. The split handle according to any one of claims 1 to 3, wherein the handle bar portion is attached to the mounting position of the mounting component relative to the handle bar portion, and at least a portion is solid. The split handle according to any one of claims 1 to 3, wherein at least a part of the handle bar is hollow except for the mounting position of the mounting part relative to the handle bar. The split handle according to any one of claims 1 to 3, wherein a plurality of fiber pieces combined by resin in the above-mentioned stacked state contains fibers containing any one of carbon, glass resin, and aromatic polyamide .