Disassembly structure of unit

Abstract

Provided is a unit detachable structure that enables easy change of only a first unit and, in the case where the first unit is changed, enables mechanical action to be transmitted from the new first unit to a second unit. A three-wheeled motorcycle (1) is provided with an upper unit (51) having a handlebar (4) and a lower unit (52) having a wheel (3). The upper unit (51) is provided with a first transmission mechanism that is connected to the lower unit (52) and mechanically transmits the action of the upper unit (51) to the lower unit (52). The lower unit (52) is provided with a lower plate (7) that is connected to the upper unit (51) and is mechanically transmitted the action of the upper unit (51) from the upper unit (51). The unit detachable structure is provided with a switching structure that switches between a fixed state in which the first transmission mechanism and the lower plate (7) cannot be detached and a non-fixed state in which the first transmission mechanism and the lower plate (7) can be detached.

Description

Technical Field

[0001] The present invention relates to a disassembly and assembly structure for a unit, the unit comprising a first unit and a second unit which is detachably and assembled from the first unit. Background Technology

[0002] Previously, vehicles with at least two wheels, handlebars for operating the wheels, and a frame supporting the wheels and handlebars were known (see, for example, Patent Document 1). The automatic two-wheeled vehicle described in Patent Document 1 employs a front fork to transmit the operating action of the handlebars to the wheels. This front fork has two suspensions that clamp and support the rotation axle of the front wheel of the automatic two-wheeled vehicle, each suspension being connected to the handlebars. Furthermore, the user of the automatic two-wheeled vehicle can rotate the front fork by operating the handlebars, thereby controlling the front wheel.

[0003] In addition, in order to stimulate consumer demand, the design of the vehicle is an important factor, so there is a desire to change the design of the handlebars and other parts, and to change the appearance of the vehicle to a new design.

[0004] Prior art literature Patent documents Patent document 1: Japanese Patent Application Publication No. 2022-026317. Summary of the Invention

[0005] The problem that the invention aims to solve However, since the automatic two-wheeled vehicle described in Patent Document 1 uses a front fork, when changing the design of the handlebars, etc., it is impossible to transmit the operating action of the handlebars, which are mechanical actions, to the wheels. Therefore, there is a problem that not only the first unit with handlebars needs to be changed, but also the second unit with wheels must be changed.

[0006] The purpose of this invention is to provide a disassembly and assembly structure for a unit that allows for easy modification of only the first unit, and also enables the transmission of mechanical motion from the new first unit to the second unit even after the first unit has been modified.

[0007] Methods for problem solving Regarding the disassembly and assembly structure of the unit of the present invention, the unit includes a first unit and a second unit that is detachably mounted on the first unit, and the second unit is operated based on the operation of the first unit. The first unit is characterized in that the first unit has a first transmission mechanism that is connected to the second unit and mechanically transmits the operation of the first unit to the second unit, and the second unit has a second transmission mechanism that is connected to the first unit and mechanically transmits the operation of the first unit from the first unit. The disassembly and assembly structure has a switching structure that switches between a fixed state in which the first transmission mechanism and the second transmission mechanism cannot be detached and a non-fixed state in which the first transmission mechanism and the second transmission mechanism can be detached.

[0008] With this configuration, the first transmission mechanism is connected to the second unit and mechanically transmits the action of the first unit to the second unit. The second transmission mechanism is connected to the first unit and mechanically transmits the action of the first unit from the first unit. Therefore, the first unit can mechanically transmit its action to the second unit. Furthermore, the assembly / disassembly structure includes a switching mechanism that allows switching between a fixed state where the first and second transmission mechanisms cannot be detached and a non-fixed state where they can be detached. Thus, the user can switch between the fixed and non-fixed states using the switching mechanism, thereby enabling the first unit to be assembled / disassembled relative to the second unit. Therefore, the vehicle can easily be modified by only changing the first unit, and even after the first unit has been modified, mechanical actions can still be transmitted from the new first unit to the second unit.

[0009] In this invention, preferably, the first transmission mechanism includes a first cylindrical body formed in a cylindrical shape, and the second transmission mechanism includes a second cylindrical body formed in a cylindrical shape and fitted into the first cylindrical body along the axial direction. The first transmission mechanism and the second transmission mechanism mechanically transmit the action of the first unit through the interior of the first cylindrical body and the interior of the second cylindrical body. The disassembly and assembly structure includes a locking part that locks the first cylindrical body and the second cylindrical body and restricts the axial movement of the first cylindrical body and the second cylindrical body. The switching structure moves the locking part to the locking position that locks the first cylindrical body and the second cylindrical body to switch to a fixed state, and moves the locking part to the non-locking position that does not lock the first cylindrical body and the second cylindrical body to switch to a non-fixed state.

[0010] With this configuration, since the assembly / disassembly structure includes a locking portion that locks the first and second cylindrical bodies and restricts their axial movement, the interior of the first cylindrical body and the interior of the second cylindrical body can be connected by locking the first and second cylindrical bodies. Furthermore, since the first and second transmission mechanisms mechanically transmit the movement of the first unit through the interiors of the first and second cylindrical bodies, the parts transmitting the movement of the first unit can be protected by the first and second cylindrical bodies, ensuring reliable transmission of the first unit's movement.

[0011] In this invention, preferably, the first cylindrical body and the second cylindrical body are formed into a cylindrical shape, and the locking part has a groove provided along the outer periphery of either the first cylindrical body or the second cylindrical body, and a plurality of spheres arranged along the inner periphery of the other cylindrical body or the second cylindrical body. The switching structure causes the spheres to protrude toward the groove to switch to a fixed state, and causes the spheres to retract relative to the groove to switch to a non-fixed state.

[0012] With this configuration, since the switching structure causes the sphere to protrude toward the groove to switch to a fixed state and causes the sphere to retract relative to the groove to switch to a non-fixed state, even if an axial offset occurs when the first and second cylindrical bodies are fitted together, the axial offset can be corrected by causing the sphere to protrude relative to the groove.

[0013] In this invention, preferably, the first transmission mechanism comprises two first cylindrical bodies disposed on a predetermined plane, and the second transmission mechanism comprises two second cylindrical bodies disposed on the predetermined plane and fitted into each of the two first cylindrical bodies.

[0014] With this configuration, even when the first and second cylindrical bodies are formed into cylindrical shapes, the rotation of the first and second cylindrical bodies around their axes can be restricted, and the first and second cylindrical bodies can be reliably locked in place.

[0015] In this invention, preferably, the first transmission mechanism electrically transmits the action of the first unit to the second unit via the interior of the first cylindrical body, and the second transmission mechanism electrically transmits the action of the first unit from the first unit via the interior of the second cylindrical body.

[0016] With this configuration, since the first transmission mechanism and the second transmission mechanism electrically transmit the action of the first unit through the interior of the first cylindrical body and the interior of the second cylindrical body, the parts that transmit the action of the first unit (such as communication cables) can be protected by the first cylindrical body and the second cylindrical body, and the action of the first unit can be reliably transmitted. Attached Figure Description

[0017] Figure 1 This is a perspective view of a three-wheeled motorcycle according to one embodiment of the present invention.

[0018] Figure 2 This is a front view of a three-wheeled motorcycle.

[0019] Figure 3 This is a picture of the back of a three-wheeled motorcycle.

[0020] Figure 4 This is a left-side view of a three-wheeled motorcycle.

[0021] Figure 5 This is a right-side view of a three-wheeled motorcycle.

[0022] Figure 6 It is a plan view of a three-wheeled motorcycle.

[0023] Figure 7 This is a bottom view of a three-wheeled motorcycle.

[0024] Figure 8 It is a three-dimensional view taken from the upper oblique side of the XY plane, showing the state after the upper and lower units have been removed.

[0025] Figure 9 This is a 3D view taken from the lower side of the XY plane, showing the state after the upper and lower units have been removed.

[0026] Figure 10 It is an enlarged 3D view of the top panel.

[0027] Figure 11 This is a magnified 3D view of the lower panel.

[0028] Figure 12 It is a magnified 3D view of the lock sleeve.

[0029] Figure 13 This is a bottom view of the lower plate.

[0030] Figure 14 This is a cross-sectional view of the lock sleeve.

[0031] Figure 15 It is an enlarged 3D view showing the lock sleeve in its current state after the open / close button has been moved.

[0032] Figure 16 This is a bottom view of the lower plate after the on / off switch has been moved.

[0033] Figure 17 This is a cross-sectional view of the lock sleeve in its current state after the open / close button has been moved.

[0034] Figure 18 It is an enlarged 3D view showing the state after the upper and lower plates are installed.

[0035] Figure 19 It is a cross-sectional view showing the state after the upper and lower plates are installed.

[0036] Figure 20 This is an enlarged cross-sectional view of the lock shaft and lock sleeve.

[0037] Figure 21 It is a magnified three-dimensional diagram showing the mechanism that transmits the operating actions of the handlebars to the wheels.

[0038] Figure 22 It is an enlarged three-dimensional diagram showing the mechanism that transmits the braking action of the brake to the wheels.

[0039] Explanation of reference numerals in the attached drawings: 1-Three-wheeled motorcycle (vehicle), 2-Seat, 3-Wheel, 4-Handlebar, 5-Frame, 6-Upper plate (first transmission mechanism), 7-Lower plate (second transmission mechanism), 41-Brake, 51-Upper unit (first unit, unit disassembly and assembly structure), 52-Lower unit (second unit, unit disassembly and assembly structure), 53-Steering linkage, 54-Rear tilting rod, 64-Locking shaft (first cylindrical body), 74-Locking sleeve (second cylindrical body), 77-Opening and closing lever, 78-Cylindrical lock, 411-Brake lever, 412-Brake cable, 642A-Groove (locking part), 743-Ball (ball, locking part), 772-Opening and closing button (switching structure). Detailed Implementation

[0040] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0041] Figure 1 This is a perspective view of a three-wheeled motorcycle according to one embodiment of the present invention. Figure 2 This is a front view of a three-wheeled motorcycle. Figure 3 This is a picture of the back of a three-wheeled motorcycle. Figure 4 This is a left-side view of a three-wheeled motorcycle. Figure 5 This is a right-side view of a three-wheeled motorcycle. Figure 6 It is a plan view of a three-wheeled motorcycle. Figure 7 This is a bottom view of a three-wheeled motorcycle.

[0042] like Figures 1-7 As shown, the three-wheeled motorcycle 1 is a vehicle comprising a seat 2 for seating, three wheels 3, a brake 41 for braking the wheels 3 and for operating the wheels 3, and a frame supporting the wheels 3 and the handlebars 4. The frame 5 comprises an upper unit 51 having the seat 2 and the handlebars 4 as a first unit, and a lower unit 52 having the wheels 3 as a second unit.

[0043] In addition, Figures 1-7 In this diagram, the vertical top is designated as the +Z axis, and the two axes orthogonal to this Z axis are designated as the X and Y axes. The same applies to the accompanying figures.

[0044] The wheel 3 has a front wheel 31 mounted on the +Y axis side of the lower unit 52 and a rear wheel 32 mounted on the -Y axis side of the lower unit 52.

[0045] The front wheel 31 has a left front wheel 33 mounted on the -X axis side of the lower unit 52 and a right front wheel 34 mounted on the +X axis side of the lower unit 52, thus having a pair of two wheels on the left and right.

[0046] The rear wheel 32 is connected to a motor 35 mounted on the lower unit 52. The motor 35 responds to the accelerator input by the user of the tricycle 1, causing the rear wheel 32, which serves as the drive wheel, to rotate around a rotation axis.

[0047] Furthermore, in this embodiment, the wheel 3 has a front wheel 31 with a pair of left and right wheels, but it may also have a rear wheel with a pair of left and right wheels. Alternatively, the wheel may have both a front wheel with a pair of left and right wheels and a rear wheel with a pair of left and right wheels, or it may have one front wheel and one rear wheel. The vehicle only needs to have at least two wheels.

[0048] Figure 8 It is a three-dimensional view taken from the upper oblique side of the XY plane, showing the state after the upper and lower units have been removed. Figure 9 This is a 3D view taken from the lower side of the XY plane, showing the state after the upper and lower units have been removed.

[0049] like Figure 8 and Figure 9 As shown, the frame 5 can be in a state where the upper unit 51 and the lower unit 52 are removed.

[0050] Unit 51, as shown Figure 9 As shown, an upper plate 6, which is connected to the lower unit 52 and serves as the first transmission mechanism, mechanically transmits the operating action of the handlebar 4 and the braking action of the brake 41 to the lower unit 52.

[0051] Unit 52 as follows Figure 8 As shown, a lower plate 7 is provided as a second transmission mechanism, which is connected to the upper unit 51 and mechanically transmits the operating action of the handlebar 4 and the braking action of the brake 41 from the upper unit 51.

[0052] Furthermore, the frame 5 has a disassembly and assembly structure that allows for easy installation and removal of the upper plate 6 (upper unit 51) and the lower plate 7 (lower unit 52).

[0053] The following describes the assembly and disassembly structure of the upper unit 51 and the lower unit 52.

[0054] Figure 10 This is a magnified 3D view of the upper panel. Specifically, Figure 10 (A) is a three-dimensional view of the upper plate 6 from the oblique upper side of the XY plane. Figure 10 (B) is a perspective view of the upper plate 6 from the lower side of the XY plane.

[0055] like Figure 10As shown, the upper plate 6 has a rectangular plate-shaped upper plate body 61. The upper plate body 61 has a circular hole 611 with a circular cross-section formed at the center of the length direction, and two circular holes 612 formed on both sides of the circular hole 611 in the length direction, which are formed with a larger diameter than the circular hole 611 and have a generally circular cross-section.

[0056] Furthermore, in this embodiment, the circular hole 612 is formed to have a larger diameter than the circular hole 611, but it may also be formed to have the same diameter or a smaller diameter.

[0057] The upper plate 6 has a generally cylindrical first coupling 62 that is inserted into the interior of a circular hole 611, and a support member 63 that is fixed to the upper surface of the upper plate body 61 and supports the first coupling 62 so that it can rotate freely about the Z-axis.

[0058] The first coupling 62 has claws 621 formed at three locations along its periphery and is supported by a support member 63 in such a way that its axis of rotation is coaxial with the central axis of the circular hole 611.

[0059] In addition, the upper plate 6 has two generally cylindrical locking shafts 64 installed in each of the circular holes 612, two generally cylindrical second couplings 65 inserted into each of the locking shafts 64, and a support member 66 fixed to the upper surface of the upper plate body 61 and supporting the second couplings 65 so as to be rotatable about the Z-axis.

[0060] The locking shaft 64 has a hollow, disc-shaped flange 641 fixed to the upper surface of the upper plate body 61, and a cylindrical portion 642 extending from the inner edge of the flange 641 toward the interior of the circular hole 612. The cylindrical portion 642 is fixed to the upper plate body 61 in such a way that its central axis is coaxial with the central axis of the circular hole 612. The cylindrical portion 642 has a groove 642A formed along its outer circumference.

[0061] The second coupling 65 has claw portions 651 formed at three locations along its periphery, and is supported by a support member 66 in such a way that its rotation axis is coaxial with the central axis of the circular hole 612 (i.e., the central axis of the cylindrical portion 642 on the locking shaft 64).

[0062] Figure 11 This is a magnified 3D view of the lower panel. Specifically, Figure 11 (A) is a three-dimensional view of the lower plate 7 from the oblique upper side of the XY plane. Figure 11 (B) is a perspective view of the lower plate 7 from the lower side of the XY plane.

[0063] like Figure 11As shown, the lower plate 7 has a rectangular plate-shaped lower plate body 71. The lower plate body 71 has a circular hole 711 with a circular cross-section formed at the center of the length direction, and two circular holes 712 formed on both sides of the length direction with a larger diameter than the circular hole 711 and a generally circular cross-section.

[0064] The lower plate 7 has a generally cylindrical first coupling 72 that is inserted into the interior of a circular hole 711, and a support member 73 that is fixed to the bottom surface of the lower plate body 71 and supports the first coupling 72 so that it can rotate freely about the Z-axis.

[0065] The first coupling 72 has claws 721 formed at three locations along its periphery and is supported by a support member 73 in such a way that its axis of rotation is coaxial with the central axis of the circular hole 711.

[0066] In addition, the lower plate 7 has two generally cylindrical locking sleeves 74 installed in each of the circular holes 712, two generally cylindrical second couplings 75 inserted into the interior of each locking sleeve 74, and two brake converter units 76 fixed to the bottom surface of the lower plate body 71 and supporting the second couplings 75 so that they can rotate freely about the Z-axis.

[0067] The second coupling 75 has claws 751 formed at three locations along its periphery and is supported by two brake converter units 76 in such a way that its rotation axis is coaxial with the central axis of the circular hole 712.

[0068] Each brake converter unit 76 includes a brake lever 761 that moves back and forth along the Y-axis direction based on the rotational movement of each second coupling 75. Furthermore, each brake converter unit 76 uses hydraulic pressure to brake each front wheel 31 and rear wheel 32 based on the back and forth movement of each brake lever 761.

[0069] Figure 12 It is a magnified 3D view of the lock. Specifically, Figure 12 This is a three-dimensional view of the lower plate 7 and the locking sleeve 74 from the upper oblique side of the XY plane.

[0070] like Figure 12 As shown, the locking sleeve 74 is integrally formed into a cylindrical shape. This locking sleeve 74 includes: multiple bolts 741A (see reference...) Figure 13 The cage 741 is fixed to the flange portion on the bottom surface of the lower plate body 71 and is disposed on the inner circumference. The cage 741 is generally cylindrical and has a central axis coaxial with the central axis of the cage 741 and is disposed on the outer circumference. The cage 741 and the locking cam 742 are generally cylindrical and are disposed on the outer circumference. The cage 741 and the locking cam 742 hold a plurality of balls 743.

[0071] The locking sleeve 74 can cause the ball 743 to retract from the inner circumference of the cage 741 by rotating the locking cam 742 about the central axis.

[0072] Figure 13 This is a bottom view of the lower plate. Figure 14 This is a cross-sectional view of the lock sleeve. Specifically, Figure 13 and Figure 14 The components in the locking sleeve 74 required for retracting the ball 743 from the inner circumference of the cage 741 are shown. Figure 14 The cross-section showing the lock 74 cut by the XY plane is shown.

[0073] like Figure 13 and Figure 14 As shown, the lower plate 7 includes: a hollow disc-shaped opening and closing lever 77 with a hole of the same diameter as the round hole 711 and which is rotatably mounted on the bottom surface of the lower plate body 71 by aligning the hole with the round hole 711; and a cylindrical lock 78 for limiting the rotation of the opening and closing lever 77.

[0074] The opening and closing lever 77 has rectangular holes 771 with rectangular cross-sections formed at two locations on both sides of the Y-axis direction, and an opening and closing button 772 provided on the -X-axis side. It is mounted on the bottom surface of the lower plate body 71 by moving the opening and closing button 772 to both sides of the Y-axis direction and rotating freely about the Z-axis.

[0075] The locking cam 742 of the locking sleeve 74 is mounted on the side of the circular hole 711 and has a cylindrical locking cam button 742A protruding from the bottom surface of the lower plate body 71. The locking cam button 742A is inserted into the rectangular hole 771 of the opening and closing lever 77, so that by moving the opening and closing button 772 to both sides in the Y-axis direction, the opening and closing lever 77 can be rotated, and the locking cam 742 can be rotated about the central axis.

[0076] In addition, the retainer 741 of the locking sleeve 74 is as follows Figure 14 As shown, the cage 741 has multiple circular holes formed at positions corresponding to each ball 743. The diameter of these holes is slightly smaller on the inner side of the cage 741 than the diameter of the ball 743, and slightly larger on the outer side of the cage 741 than the diameter of the ball 743. In other words, the holes are formed with a diameter that increases from the inner side of the cage 741 toward the outer side.

[0077] Furthermore, the locking cam 742 of the locking sleeve 74 has a plurality of cams 742B formed at positions corresponding to each ball 743.

[0078] Figure 15 It is an enlarged 3D view showing the lock sleeve in its current state after the open / close button has been moved. Figure 16 This is a bottom view of the lower plate after the on / off switch has been moved. Figure 17 This is a cross-sectional view of the lock sleeve in its current state after the open / close button has been moved. Specifically, Figures 15-17 Is with Figures 12-14 The corresponding diagram.

[0079] Each lock case 74 Figures 12-14 As shown, it has a locked state after the on / off button 772 is moved towards the -Y axis direction, and as shown in the figure. Figures 15-17 As shown, this is the unlocked state after the on / off button 772 is moved to the +Y axis direction.

[0080] In the locked state of lock 74, such as Figures 12-14 As shown, each ball 743 is pushed out by the cam 742B of the locking cam 742 toward the central axis of the locking sleeve 74. At this time, as described above, the diameter of the inner side of the retainer 741 is slightly smaller than the diameter of the ball 743, so the ball 743 will not fall off the retainer 741, but will protrude from the retainer 741.

[0081] Furthermore, in the unlocked state of the lock sleeve 74, each ball 743, as... Figures 15-17 As shown, the cam 742B, which is not locked by the cam 742, is pushed out toward the central axis of the locking sleeve 74. At this time, since the diameter of the outer side of the retainer 741 is slightly larger than the diameter of the ball 743, as described above, the balls 743 can be inserted into the space formed between the retainer 741 and the cam 742B, and can be pushed back into the retainer 741 by being pushed toward the interior of the retainer 741.

[0082] Figure 18 This is an enlarged 3D view showing the state after the upper and lower panels are installed. Specifically, Figure 18 The diagram shows the locking shaft 64 and the locking sleeve 74, as well as the components required to switch the state of the locking sleeve 74. Furthermore, Figure 18 (A) is a three-dimensional view of the upper plate 6 and the lower plate 7 from the oblique upper side of the XY plane. Figure 18 (B) is a perspective view of the upper plate 6 and the lower plate 7 from the lower side of the XY plane.

[0083] like Figure 18 As shown, the upper plate 6 and the lower plate 7 can be interlocked by inserting the locking shaft 64 relative to the locking sleeve 74 along the central axis direction.

[0084] Thus, in this embodiment, the upper plate 6 has a locking shaft 64, which is formed in a cylindrical shape and serves as a first cylindrical body. In addition, the lower plate 7 has a locking sleeve 74, which is formed in a cylindrical shape and fits into the locking shaft 64 in the axial direction and serves as a second cylindrical body.

[0085] Furthermore, in this embodiment, the upper plate 6 has two locking shafts 64 disposed on a predetermined plane, and the lower plate 7 has two locking sleeves 74 disposed on a predetermined plane and fitted with each of the two locking shafts 64. Here, in this embodiment, the predetermined plane is the bottom surface of the upper plate body 61 and the upper surface of the lower plate body 71.

[0086] Figure 19 This is a cross-sectional view showing the state after the upper and lower plates are installed. Specifically, Figure 19 The cross-section showing the upper plate 6 and the lower plate 7 cut in the YZ plane is shown.

[0087] When the upper plate 6 and lower plate 7 are engaged by inserting the locking shaft 64 along the central axis direction into the locking sleeve 74, as follows: Figure 19 As shown, the ball 743 of the locking sleeve 74 is opposite to the groove 642A of the locking shaft 64.

[0088] Figure 20 This is an enlarged cross-sectional view of the locking shaft and locking sleeve. Specifically, Figure 20 A cross-section showing the locking shaft 64 and locking sleeve 74 cut through the XY plane is shown. Furthermore, Figure 20 (A) is a cross-sectional view of the locking shaft 64 and the locking sleeve 74 in the locked state. Figure 20 (B) is a cross-sectional view of the locking shaft 64 and the locking sleeve 74 in the unlocked state.

[0089] When the locking state is achieved after the on / off button 772 moves towards the -Y axis, each ball 743... Figure 20 As shown in (A), the cam 742B of the locking cam 742 is pushed out toward the central axis of the locking sleeve 74, thus protruding from the retainer 741 and engaging with the groove 642A of the locking shaft 64.

[0090] Here, each ball 743 restricts the axial movement of the locking shaft 64 and the locking sleeve 74 by engaging with the groove 642A.

[0091] Furthermore, when the unlocked state is achieved after the on / off button 772 is moved towards the +Y axis direction, each ball 743, as... Figure 20 As shown in (B), the cam 742B that will not be locked is pushed toward the central axis of the lock sleeve 74, so by pulling the lock shaft 64 out of the lock sleeve 74, it will be pushed toward the interior of the retainer 741 and retracted into the retainer 741.

[0092] Thus, in this embodiment, the disassembly and assembly structure of the upper unit 51 and the lower unit 52 (the disassembly and assembly structure of the frame 5) has an on / off button 772 (switching structure) that switches between a fixed state in which the upper plate 6 and the lower plate 7 cannot be detached and a non-fixed state in which the upper plate 6 and the lower plate 7 can be detached.

[0093] In addition, the unit's disassembly and assembly structure has a locking part (groove 642A and each ball 743) that locks the locking shaft 64 and the locking sleeve 74 and restricts the axial movement of the locking shaft 64 and the locking sleeve 74.

[0094] In other words, the locking part has a groove 642A provided along the outer periphery of the locking shaft 64 which is formed into a cylindrical shape, and a plurality of balls 743 (spheres) arranged along the inner periphery of the locking sleeve 74 which is formed into a cylindrical shape.

[0095] In addition, in this embodiment, a groove 642A is provided on the locking shaft 64 and a plurality of balls 743 are arranged on the locking sleeve 74, but a plurality of balls may also be arranged on the locking shaft 64 and a groove may be provided on the locking sleeve 74.

[0096] Furthermore, the on / off button 772 switches to a fixed state by causing each ball 743 to protrude toward the groove 642A, moving each ball 743 to the locking position that locks the locking shaft 64 and the locking sleeve 74, and switches to a non-fixed state by causing each ball 743 to retract relative to the groove 642A, moving each ball 743 to a non-locking position that does not lock the locking shaft 64 and the locking sleeve 74.

[0097] Figure 21 This is an enlarged perspective view showing the mechanism that transmits handlebar movements to the wheels. Specifically, Figure 21 The handlebars 4 and front wheel 31 are shown, as well as the components required to transmit the operating actions of the handlebars 4 to the front wheel 31.

[0098] like Figure 21 As shown, the front wheel 31 has a hub (not shown) mounted at the center of the wheel and having a steering axle (not shown) extending radially inside, and a tire 312 mounted along the outer periphery of the wheel.

[0099] The steering axis of the wheel hub is connected to a cylindrical caster variable shaft 313. Therefore, the front wheel 31 can change the caster angle, which is the angle of the steering axis, by rotating the caster variable shaft 313 about the axis.

[0100] The lower unit 52 has a swing arm 521 formed in a generally prismatic shape and whose base end is supported to rotate freely about the X-axis. The tilting variable shaft 313 is supported to rotate freely about the X-axis by being inserted into a hole formed in the distal end of the swing arm 521.

[0101] The frame 5 has a steering link 53 for transmitting the operating action of the handlebars 4, and a tilt rod 54 for rotating the tilt variable shaft 313 about the X-axis.

[0102] The steering linkage 53 includes: a steering tie rod 531 with one end connected to the end of the handlebar 4 in the -Z axis direction; a linkage member 532 with the end in the +Z axis direction connected to the other end of the steering tie rod 531 and mounted on the upper unit 51 in a manner that allows it to rotate freely about the X axis; a tie rod 533 with one end connected to the end of the linkage member 532 in the -Z axis direction; and a joint arm 534 with one end connected to the front wheel 31.

[0103] Here, the other end of the tie rod 533 is connected to the first coupling 62 of the upper plate 6. In addition, the other end of the articulated arm 534 is connected to the first coupling 72 of the lower plate 7.

[0104] The operation of the handlebar 4 causes the tie rod 533 to move back and forth along the Y-axis via the steering tie rod 531 and the connecting rod member 532. Furthermore, the back and forth movement of the tie rod 533 causes the first coupling 62 to rotate around the Z-axis.

[0105] Here, with the upper plate 6 and the lower plate 7 installed, the claw portion 621 of the first coupling 62 and the claw portion 721 of the first coupling 72 engage with each other, so by rotating the first coupling 62 around the Z-axis, the first coupling 72 rotates around the Z-axis.

[0106] Furthermore, the rotation of the first coupling 72 causes the articulated arm 534 to move back and forth along the Y-axis, thus causing the front wheel 31 to rotate around the steering axis.

[0107] Therefore, the three-wheeled motorcycle 1 has a hub center steering mechanism, which has a pair of left and right swing arms 521 supported by the lower unit 52 and causing each front wheel 31 to swing in the up and down direction, and a steering linkage 53 connecting the hub of the front wheel 31 and the handlebar 4 and operating each front wheel 31 based on the operation of the handlebar 4.

[0108] Figure 22 This is an enlarged perspective view showing the mechanism that transmits the braking action of the brake to the wheels. Specifically, Figure 22 The diagram shows a brake 41 and the components required to transmit the braking action of the brake 41 to the front wheel 31 (not shown) and the rear wheel 32 (not shown).

[0109] like Figure 22 As shown, the brake 41 includes a pair of left and right brake levers 411 held by the user of the three-wheeled motorcycle 1, and a pair of left and right brake cables 412 connected at one end to each brake lever 411 and transmitting the braking action of the brake 41 by holding each brake lever 411.

[0110] like Figure 10 and Figure 22 As shown, the other end of each brake cable 412 is connected to each of the second couplings 65 on the upper plate 6.

[0111] The braking action of brake 41 causes the second coupling 65 to rotate around the Z-axis via brake cable 412.

[0112] Here, with the upper plate 6 and the lower plate 7 installed, the claw portion 651 of the second coupling 65 and the claw portion 751 of the second coupling 75 are engaged with each other, so by rotating the second coupling 65 around the Z-axis, the second coupling 75 rotates around the Z-axis.

[0113] Furthermore, the rotational action of each of the second couplings 75 is as follows: Figure 11 As shown, each brake lever 761 moves back and forth along the Y-axis, thus, as previously described, the hydraulic pressure of the brake converter unit 76 causes the front wheels 31 and rear wheels 32 (not shown) to brake. Specifically, the brake lever 761 on the +Y-axis side diverts the hydraulic pressure of the brake converter unit 76 to brake each front wheel 31. Furthermore, the brake lever 761 on the -Y-axis side brakes the rear wheels 32.

[0114] Thus, in this embodiment, the upper plate 6 and the lower plate 7 transmit the operating action of the handlebar 4 and the braking action of the brake 41 mechanically through the first coupling 62, 72 and each of the second couplings 65, 75, via the locking shaft 64 and the locking sleeve 74.

[0115] Furthermore, in this embodiment, the upper plate 6 and the lower plate 7 mechanically transmit the operating action of the handlebar 4 and the braking action of the brake 41 through the internal locking shaft 64 and locking sleeve 74. However, other actions can also be mechanically transmitted, or the operating input of the accelerator can be electrically transmitted. In short, the assembly and disassembly structure of the unit can be based on the action of the first unit to make the second unit move. The action of the first unit can be mechanically transmitted relative to the second unit, or it can be electrically transmitted.

[0116] Furthermore, in cases such as the operation input of an electrical transmission accelerator, for example, the first coupling 62, 72 and the second coupling 65, 75 may also have through holes formed on their rotating shafts, through which communication cables and the like are passed.

[0117] With this configuration, since the upper plate 6 and the lower plate 7 electrically transmit the movement of the upper unit 51 through the interior of the locking shaft 64 and the interior of the locking sleeve 74, the parts that transmit the movement of the upper unit 51 (such as communication cables) can be protected by the locking shaft 64 and the locking sleeve 74, and the movement of the upper unit 51 can be reliably transmitted.

[0118] According to this embodiment, the following effects can be achieved.

[0119] (1) The upper plate 6 is connected to the lower unit 52 and mechanically transmits the action of the upper unit 51, which includes the operation of the handlebar 4, to the lower unit 52. The lower plate 7 is connected to the upper unit 51 and mechanically transmits the action of the upper unit 51, which includes the operation of the handlebar 4, from the upper unit 51. Therefore, the upper unit 51 can mechanically transmit the action of the upper unit 51 to the lower unit 52.

[0120] (2) The unit's disassembly and assembly structure has an on / off switch 772 that allows switching between a fixed state where the upper plate 6 and lower plate 7 cannot be detached and a non-fixed state where the upper plate 6 and lower plate 7 can be detached. Therefore, by using the on / off switch 772 to switch between the fixed and non-fixed states, the user can detach and assemble the upper unit 51 relative to the lower unit 52. Thus, the three-wheeled motorcycle 1 can easily change only the upper unit 51, and even after changing the upper unit 51, mechanical actions can still be transmitted from the new upper unit 51 to the lower unit 52.

[0121] (3) The unit has a slot 642A that locks the locking shaft 64 and the locking sleeve 74 and restricts the axial movement of the locking shaft 64 and the locking sleeve 74, and each ball 743. Therefore, by locking the locking shaft 64 and the locking sleeve 74, the interior of the locking shaft 64 and the interior of the locking sleeve 74 can be connected.

[0122] (4) The upper plate 6 and the lower plate 7 mechanically transmit the action of the upper unit 51 through the inside of the locking shaft 64 and the inside of the locking sleeve 74. Therefore, the parts that transmit the action of the upper unit 51 can be protected by the locking shaft 64 and the locking sleeve 74, and the action of the upper unit 51 can be reliably transmitted.

[0123] (5) The opening and closing button 772 causes each ball 743 to protrude into the groove 642A and switch to the fixed state, and causes each ball 743 to retract relative to the groove 642A and switch to the non-fixed state. Therefore, when the axial direction is offset when the locking shaft 64 and the locking sleeve 74 are engaged, the axial offset can be corrected by causing each ball 743 to protrude relative to the groove 642A.

[0124] (6) The upper plate 6 has two locking shafts 64 arranged on a specified plane, and the lower plate 7 has two locking sleeves 74 arranged on a specified plane and fitted with each of the two locking shafts 64. Therefore, when the locking shafts 64 and locking sleeves 74 are formed into a cylindrical shape, the rotation of the locking shafts 64 and locking sleeves 74 around the axis can be restricted, and the locking shafts 64 and locking sleeves 74 can be reliably locked.

[0125] [Variations on the implementation method] Furthermore, the present invention is not limited to the above-described embodiments, and variations and improvements within the scope of achieving the purpose of the present invention are included in the present invention.

[0126] For example, in the above embodiment, the disassembly and assembly structure of the unit includes a locking part (groove 642A and each ball 743) that locks the locking shaft 64 and the locking sleeve 74 and restricts the axial movement of the locking shaft 64 and the locking sleeve 74. The locking part is not limited to the configuration of groove 642A and each ball 743; other configurations such as grooves and claws can also be used. Any structure can be adopted as long as it can lock the first cylindrical body and the second cylindrical body and restrict the axial movement of the first cylindrical body and the second cylindrical body.

[0127] Furthermore, in the above embodiment, the upper plate 6 has two locking shafts 64 disposed on a predetermined plane, and the lower plate 7 has two locking sleeves 74 disposed on the predetermined plane and fitted with each of the two locking shafts 64. Accordingly, the first transmission mechanism and the second transmission mechanism may each have a first cylindrical body and a second cylindrical body. In this case, for example, the first cylindrical body and the second cylindrical body may be formed into other shapes such as a square cylinder. By adopting a shape with corners, such as a square cylinder, the rotation of the first cylindrical body and the second cylindrical body around the axis can be restricted.

[0128] Industrial availability As described above, the present invention is applicable to the assembly and disassembly structure of a unit, which includes a first unit and a second unit that can be detachably mounted on the first unit.

Claims

1. A detachable and detachable structure for a unit, the unit comprising a first unit and a second unit detachably mounted to the first unit, wherein the second unit is activated based on the action of the first unit, characterized in that, The first unit has a first transmission mechanism that connects to the second unit and mechanically transmits the actions of the first unit to the second unit. The second unit includes a second transmission mechanism that is connected to the first unit and mechanically transmits the motion of the first unit from the first unit. The disassembly and assembly structure has a switching structure that allows switching between a fixed state in which the first and second transmission mechanisms cannot be detached and a non-fixed state in which the first and second transmission mechanisms can be detached.

2. The disassembly and assembly structure of the unit as described in claim 1, characterized in that, The first transmission mechanism includes a first cylindrical body formed in a cylindrical shape. The second transmission mechanism includes a second cylindrical body that is formed in a cylindrical shape and fits into the first cylindrical body along the axial direction. The first and second transmission mechanisms mechanically transmit the movement of the first unit through the interiors of the first and second cylindrical bodies. The disassembly and assembly mechanism includes a locking portion that locks the first cylindrical body and the second cylindrical body and restricts the axial movement of the first cylindrical body and the second cylindrical body. The switching structure moves the locking part to a locking position that locks the first cylindrical body and the second cylindrical body, thus switching to the fixed state; and moves the locking part to a non-locking position that does not lock the first cylindrical body and the second cylindrical body, thus switching to the non-fixed state.

3. The disassembly and assembly structure of the unit as described in claim 2, characterized in that, The first cylindrical body and the second cylindrical body are formed into a cylindrical shape. The locking portion includes: A groove is provided along the outer periphery of either the first cylindrical body or the second cylindrical body; and A plurality of spheres are arranged along the inner periphery of the other of the first cylindrical body and the second cylindrical body. The switching structure causes the sphere to protrude toward the groove to switch to the fixed state, and causes the sphere to retract relative to the groove to switch to the non-fixed state.

4. The disassembly and assembly structure of the unit as described in claim 3, characterized in that, The first transmission mechanism comprises two first cylindrical bodies disposed on a predetermined plane. The second transmission mechanism comprises two second cylindrical bodies disposed on a predetermined plane and fitted into each of the two first cylindrical bodies.

5. The disassembly and assembly structure of the unit as described in any one of claims 2 to 4, characterized in that, The first transmission mechanism transmits the movement of the first unit to the second unit via the internal electrical system of the first cylindrical body. The second transmission mechanism electrically transmits the action of the first unit from the first unit via the interior of the second cylindrical body.

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