JP2014080172A - Clamp device for front wheel of motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clamp device for a front wheel of a motorcycle which can move a link point and perform a pressure-welding of an upper side face of a front wheel of a motorcycle firmly by a toggle mechanism of a link and a toggle clamp regardless of a wheel diameter of the motorcycle and a tire width diameter of the motorcycle which are mounted uprightly.SOLUTION: By a toggle mechanism of a link and a toggle clamp,an upper side face of a front wheel is clamped firmly from both sides by disposing a screw shaft,a rack pinion,a device for increasing speed and a torque limiter so as to follow a front wheel's width diameter and moving a link point when the motorcycle goes ahead regardless of a wheel diameter and a tire width diameter of the motorcycle.

Description

  The present invention relates to a motorcycle from a moped to a large motorcycle (hereinafter referred to as “bike”). The present invention relates to a bicycle parking device that can be used as a bicycle parking device.

  Bikes are less stable when parked than four-wheeled vehicles, and the flat type falls due to an earthquake, and when incorporated in a mechanical multilevel parking device, it vibrates due to vibration, shock, or earthquake during an emergency stop. There is a risk of falling and falling due to, etc. Therefore, a motorcycle overturn prevention device for stably parking a motorcycle on a mechanical multilevel parking device has been proposed (Patent Document 1, Patent Document 2).

JP2011-235897 Japanese Patent Application No. 2010-189572

  The tipping prevention device described in Patent Document 1 is such that the tire width is limited by the groove width of the front wheel lower holding portion, and the tire is sandwiched and pressed from the front and rear by the front stop portion, and can be applied to any tire width. It is impossible, and in particular to prevent left and right runout, it is necessary to prepare the groove width of the front wheel lower holding portion for each tire width.

  The bicycle parking device described in Patent Document 2 drives the fulcrum lateral movement of the upper link by a motor, and the drive system is expensive to apply to a mechanical multilevel parking device.

  In view of such circumstances, the present invention follows the size of the front wheel width regardless of the size of the front wheel diameter of the motorcycle mounted upright, and moves the upper link fulcrum in the forward direction of the motorcycle to move the link toggle mechanism and toggle. An object of the present invention is to provide a front wheel clamp device for a motorcycle which can press the front side of the front wheel more firmly from the left and right by means of the clamp.

  In order to achieve the above-mentioned problems, the invention of claim 1 is arranged such that a clamp plate having a rubber plate fixed from both sides of the front wheel upper side surface of the motorcycle on which the motorcycle is mounted upright is arranged on both left and right sides of the front wheel stopper on the motorcycle center line. The left and right clamp plates can be adjusted to the left and right, and the moving frame with the upright bike front wheels is moved forward, so that the left and right moving bodies that are pivotally supported have opposite screw holes in the same axial direction. The screw shafts that are hinged on both sides are arranged in the opposite screw holes of the left and right moving bodies, and the upper side of the front wheel is toggled by two sets of upper and lower link toggle mechanisms Are abutted from the left and right with a clamp plate to which a rubber plate is fixed. Next, by operating the pedal for the front wheel upper clamp, the upper link pivots around the upper link fulcrum to the bike center line side by pushing down the lifting base plate connected to the lower link by the toggle clamp interlocked with the pedal A front wheel clamp device for a motorcycle, wherein the clamp plate and the rubber plate are further pressed against the bike center line side, and the upper side surface of the front wheel is pressed from the left and right.

  Further, the invention of claim 2 converts the linear motion of the moving part into a rotational motion by a rack and pinion by advancing the moving frame, increases the speed by a speed increaser, and generates resistance torque generated on the screw shaft by tire contact pressure. 2. The front wheel clamp device for a motorcycle according to claim 1, wherein a torque limiter that rotates idly when detected by a torque limiter having a torque setting function, returns when the torque limiter is below the set torque, and rotates forward and reverse is provided.

  As is apparent from the means for solving the problems, according to the motorcycle front wheel clamp device according to the first and second aspects of the invention, the upper link can be obtained by advancing the moving unit carrying the upright motorcycle front wheel. The fulcrum is moved to the bike center line side, and the left and right clamp plates with the rubber plate secured detect the resistance torque generated on the screw shaft by the tire contact pressure with a torque limiter. A torque limiter that rotates in the forward and reverse directions is arranged, and the clamp plate with rubber fixed by the rack and pinion mechanism and the screw shaft (right screw, left screw) as the moving part moves forward moves the upper and lower sides of the front wheel to the left and right. The front wheel upper side surface can be firmly pressed from both the left and right sides and clamped by the toggle clamp and the link toggle mechanism interlocking with the pedal.

  Therefore, the operation of claim 1 and claim 2 can be performed with one touch in conjunction with the pedal, and the drive source is only human power, so it does not matter even during a power failure. It becomes unnecessary, and a significant cost reduction can be achieved.

  It is a top view of the front-wheel clamp apparatus of the motorcycle which shows embodiment of this invention.   It is AA arrow sectional drawing of FIG.   It is BB arrow sectional drawing of FIG.   It is CC sectional view taken on the line of FIG.   It is DD sectional view taken on the line of FIG.   It is E1-E1 arrow sectional drawing of FIG.   It is E2-E2 arrow sectional drawing of FIG.   FIG. 5 is a cross-sectional view taken along line FF in FIG. 2.   It is explanatory drawing of the spherical bearing part of FIG.   It is explanatory drawing of the raising / lowering board part after a clamp.   (A) is explanatory drawing which shows the time of the maximum opening width, (b) is explanatory drawing which shows the time of the minimum opening width.   (A) is explanatory drawing which shows the time of tire contact pressure, (b) is explanatory drawing which shows after a tire clamp.

  Hereinafter, the present invention will be described more specifically based on embodiments for carrying out the invention described in the drawings.

  As shown in FIGS. 1 to 4, in this embodiment, the fixed frame 10 belonging to the fixed portion G is formed of, for example, a square steel pipe. Forms a moving part P.

  The moving frame 20 belonging to the moving part P is in a backward limit, that is, in a state of waiting for entry or at the time of entry, and shows a state in which the front wheel FW is in contact with the front wheel stopper 23, and the front wheel FW is guided by a guide plate 81. . It is stopped by abutting against a backward limit stopper 51 disposed on the fixed frame 10, and the stopped state is held by a tension spring 54 and a magnet 55. Further, if the tension spring 54 has an appropriate attractive force, the magnet 55 can be constructed without being necessary.

  The forward limit of the moving frame 20 stops when the forward limit stopper 52 disposed on the fixed frame 10 and the moving frame 20 come into contact with each other. The movement distance is defined as a forward movement amount S1.

  In the case of flat parking, as in this embodiment, the fixed frame 10 containing the moving part P may be fixed to the ground and anchor bolts (not shown) and installed in a mechanical multilevel parking device. Similarly, the fixed frame 10 is fixed with a parking pallet and a bolt (not shown).

  As shown in FIGS. 1 and 7, the front wheel weight of the motorcycle and the weight of the moving part P are changed back and forth by the slide rail 11 and the bracket 22 arranged on the fixed frame 10 and the roller 13 arranged on the moving frame 20 on the other side. It is supported so that it can move in the direction of the motorcycle. A presser plate 14 is provided to prevent the roller 13 from floating.

  As shown in FIGS. 5 and 7, the rack 37 is fixed to the rack mounting member 38 disposed on the fixed frame 10, and the pinion 36 disposed above the gearbox 31 disposed on the moving frame 20 is engaged with the rack 37. Match. As the moving frame 20 advances, the rotation of the pinion 36 causes the pulley 35a on the other side of the speed increaser 31 to rotate at a higher speed, and rotates the pulley 35b via the belt 35c.

  As shown in FIG. 6, the pulley 35 b is fixed to the torque limiter 32, and when the transmission force of the belt 35 c exceeds the set torque of the torque limiter 32, the pulley 35 b rotates idly. The torque limiter 32 is fixed to the end of a screw shaft (right screw, left screw) 41a rotatably supported by bearings 47a and 47b disposed on the left and right of the moving frame 20.

  Screw holes 42a and 42b opposite to each other are fixed to the moving body 41b arranged on the left and right, and the screw shaft 41a rotates forward or backward around the axis, for example, the screw shaft 41a When the left and right moving bodies 41b whose opposite ends are in opposite directions are rotated in the direction toward the center of the motorcycle center line, the four fulcrum pins 45 fixed to the front and rear of the moving body 41b are also rotated. Move in the direction toward the center.

  As shown in FIG. 6, one end side (upper end side in FIG. 6) of the upper link 43b is connected to a hinge 77 fixed to the left and right clamp plates 71 by a pin 44c so as to be rotatable forward and backward. One end of the lower link 43a is connected to the other end side (the lower end side in FIG. 6) of the upper link 43b by a pin 44b so as to be rotatable forward and backward. The other end of each of the left and right lower links 43a is connected to the elevating base plate 46 so as to be rotatable forward and backward by pins 44a in the same axial direction. A long slot 48 is provided in the upper link 43b connected to the pin 44c.

  A rubber plate 71 a is fixed to the bike center line side of the left and right clamp plates 71, and the clamp plate 71 is movably supported by a guide rod 72 fixed to the moving frame 20 and a bush 73 fixed to the clamp plate 71. ing. Further, as shown in FIG. 10, the side surface of the front wheel stopper 23 is provided with a notch hole 23a through which the guide rod 72 passes.

  Further, as the moving frame 20 advances, the screw shaft 41a rotates forward, the left and right moving bodies 41b move to the bike center line side, and the fulcrum pins 45 fixed to both ends of the moving body 41b are used as pivot fulcrums. The clamp plate 71 and the rubber plate 71a come into contact with the front wheel FW from the left and right as the pin 44c of the upper portion of the upper link 43b rotates toward the bike center line by the link mechanism of the upper link 43b and the lower link 43a. Further, a long slot 48 is provided in the upper link 43b in order to absorb the vertical displacement of the pin 44c accompanying the rotation of the upper link 43b.

  Further, although not shown in order to reduce the displacement of the clamp plate 71 due to the clearance between the guide rod 72 and the bush 73, an LM guide (product name) that moves linearly using rolling friction may be used.

  As shown in FIGS. 6 and 10, four guide pins 88 are fixed to the lower portion of the moving frame 20, and compression springs 89 are inserted into the guide pins 88, respectively. The elevating base plate 46 is disposed from above the guide pin 88, and the elevating base plate 46 is raised to the upper end of the guide pin 88 by a compression spring 89 to maintain the height of the elevating base plate 46.

  As shown in FIGS. 8 and 9, the pedal 94 is rotatably supported by a fulcrum pin 97 disposed on the moving frame 20, and a spherical bearing 94 a is disposed at one end of the pedal 94.

  The shaft 96 is slidable in the vertical direction in the block 95, and a pin 96a is fixed to the middle of the shaft 96. The pin 96a is configured to be slidable with the spherical bearing 94a. The block 95 is provided with a pin long slot 95a so that the pin 96a can move up and down.

  FIG. 8 shows a clamped state. The pedal 94 rotates around the fulcrum pin 97 as an axis, and the shaft 96 is inserted into the return preventing plate 15 to prevent the movement portion P from moving as shown in FIG. Further, when the pedal 94 is lowered clockwise, the shaft 96 disposed at one end of the pedal 94 rises in conjunction with the pin 96a, and a clearance is generated between the return preventing plate 15 and the shaft 96 in the vertical direction so that it can move freely. Become.

  As shown in FIGS. 8 and 9, the pedal 94 abuts against the stopper 98 and stops during clamping.

  As shown in FIGS. 3, 8, and 10, the pedal 94 is in a clamped state, and on the bike center line of the moving frame 20 via the universal joint 92 b, the turnbuckle 93, and the universal joint 92 a connected to the pedal 94. The handle 91a of the toggle clamp 91 is connected. Further, the toggle clamp 91 is in a locked state, and the lift base plate 46 is pushed down by Hmm. As shown in FIG. And hold the state.

  Here, when the pedal 94 corresponding to the temporary opening of the clamp is operated to the opening side, the bolt 91b of the toggle clamp 91 rises through the universal joint 92b, the turnbuckle 93, and the universal joint 92 connected to the pedal 94, The toggle clamp 91 is unlocked.

  As the bolt 91b is raised, the lifting base plate 46 is raised by the reaction force of the compression spring 89, and as shown in FIG. 12, the clamp plate 71 and the rubber plate 71a are moved by the link mechanism of the lower link 43a and the upper link 43b. Each of them moves to the outside from the bike center line side, the tire compression amount K disappears, the clamp state of the front wheel FW is released, and a contact state with a clamp force within the slip torque of the torque limiter 32 is obtained. At this point the bike is not stable but can stand on its own.

  Next, the operation based on the configuration of the embodiment for carrying out the invention will be described below.

11A shows the maximum opening width, and FIG. 11B shows the minimum opening width. As shown in FIGS. 3 and 7, the lateral movement amount S2 of the moving body 41b moves when the front wheel FW abuts on the front wheel stopper 23 and moves forward, the moving part P moves, and the rack 37 and the moving part P side The pinion 36 is engaged and the pinion 36 rotates forward. The rotation is increased by a speed increaser 31, for example, a speed increase ratio of 2, a lead of the screw shaft 41a (the lead is an advance amount when the screw shaft makes one rotation) 6 mm, a movement amount of the pinion 36 by one rotation of 100 mm, When the lateral movement amount S2 is 15 mm,
Required forward travel S1req = (S2 / lead) × (Pinion travel / speed increase ratio)
= (15/6) x (100/2)
= 125 mm.
Therefore, the forward movement amount S1 = 125 mm.

  As the moving part P advances, as shown in FIG. 12, when the rubber plate 71a hits the left and right of the front wheel FW by the rack and pinion mechanism described above, a reaction force is generated on the screw shaft 41a. When the reaction force exceeds the set slip torque of the torque limiter 32, the pulley 35b fixed to one end of the torque limiter 32 idles and the screw shaft 41a stops rotating.

  3 and 5, as the pulley 35b idles, the remaining advance amount also causes the pinion 36, the pulley 35a, and the belt 35c to idle, and the moving part P moves to the stopper 52 disposed in the fixed part G. The frame 20 comes into contact and stops.

Next, when the moving part P moves backward, the pinion 36 rotates in the reverse direction, but since it exceeds the set torque of the torque limiter 32, it rotates idly, and when it further moves backward and falls below the set torque of the torque limiter 32, the pulley 35b is reversed. The belt 35c, the pulley 35a, the speed increaser 31, and the pinion 36 rotate in the reverse direction. At the same time, the screw shaft 41a rotates in the reverse direction, and the left and right moving bodies 41b move laterally in directions away from each other. As shown in FIG. 6, the fulcrum 45 also moves laterally, and the rubber plate 71a and the clamp plate 71 also move to each other. Move away.

  In the warehousing operation, the motorcycle is first pushed, and the front wheel FW is guided by the guide plate 81 and comes into contact with the front wheel stopper 23 disposed on the moving frame 20 and stops. When further pushed in, the screw shaft 41a is rotated forward by the rack and pinion mechanism as described above, and the clamp plate 71 is moved to the center of the motorcycle by the lower link 43a and the upper link 43b as the moving body 41b moves in the direction toward the center. When the rubber plate 71a contacts the front wheel FW toward the line side and the sum of the resistance torque due to the pressing load and the running resistance torque of the moving part P reaches the set torque, the screw shaft 41a stops rotating by the torque limiter 32, The rubber plate 71a holds the position when idling, and the moving frame 20 comes into contact with the stopper 52 on the fixed portion G side and stops. At this point the bike is not stable but can stand on its own.

  Next, when the pedal 94 is depressed, the handle 91a of the toggle clamp 91 is lowered via the interlocking universal joints 92b and 92a. The

  In the above operation, the left and right clamp plates 71 and the rubber plate 71a firmly clamp the upper side surface of the tire front wheel FW by the link mechanism of the lower link 43a and the upper link 43b connected to the lift base plate 46.

  In conjunction with the above operation, the shaft 96 connected to the end of the pedal 94 (the bike center line side in FIG. 8) descends and is inserted into the hole of the return prevention plate 15 on the fixed part G side. Locked.

  As described above, the front wheel clamp in the warehousing operation completes the warehousing operation with one touch of stepping on the pedal 94.

  When the unloading operation is performed on the side opposite to the time when the pedal 94 is stored, the handle 91a of the toggle clamp 91 is lifted and the bolt 91b is lifted through the universal joint 92b, the turnbuckle 93 and the universal joint 92a at the end of the pedal 94. . Along with the rise, the lift base plate 46 rises H by the repulsion of the compression spring 89.

  In the above operation, the lower link 43a and the upper link 43b connected to the lift base plate 46 are separated to the outside on the left and right sides with the fulcrum pin 45 of the moving body 41b as the axis. At this point the bike is not stable but is self-supporting.

  In conjunction with the above operation, as the shaft 96 connected to the end of the pedal 94 rises, the shaft 96 rises above the return prevention plate 15 on the fixed portion G side, and the lock of the moving portion P is released.

  Next, when the motorcycle is manually retracted, the moving frame 20 is also pulled by the tension spring 54, and when the torque is lower than the set torque of the torque limiter 32, the screw shaft 41a rotates in the reverse direction, and the moving body 41b moves outward from left and right. The clamp plate 71 and the rubber plate 71a are further separated outward by the link mechanism of the separated upper and lower links 43b and 43a.

  When the vehicle further moves backward, the stopper 51 on the fixed portion G side and the moving frame 20 come into contact with and stop, and the motorcycle can be left as it is.

  In conjunction with the above operation, the lower link 43a and the upper link 43b rotate about the fulcrum pin 45 of the moving body 41b as an axis, and the left and right rubber plates 71a have the same maximum opening width as when entering the warehouse.

  According to the present invention, it is not necessary to drive a motor or the like, and the front wheel upper part of the motorcycle can be reliably clamped only by human power. Therefore, not only a flat-type bicycle parking machine but also a mechanical multi-level parking device can be used as a bicycle parking machine.

10 fixed frame 11 slide rail 13 roller 14 holding plate 15 return prevention plate 20 moving frame 22 bracket 23 front wheel stopper 23a notch hole 31 speed increaser 32 torque limiter 35a pulley 35b pulley 35c belt 36 pinion 37 rack 38 rack mounting material 41a Screw shaft (right screw, left screw)
41b Moving body 42a Screw hole body 42b Screw hole body 43a Lower link 43b Upper link 44a, 44b, 44c Pin 45 Support pin 46 Lifting plate 47a Bearing 47b Bearing 48 Long slot 51 Stopper 52 Stopper 54 Tension spring 55 Magnet 71 Clamp plate 71a Rubber plate 72 Guide rod 73 Bush 77 Hinge 81 Guide plate 88 Guide pin 89 Compression spring 91 Toggle clamp 91a Handle 91b Bolt 92a Universal joint 92b Universal joint 93 Turnbuckle 94 Pedal 94a Spherical bearing 95 Block 95a Pin slot 96 shaft 96a pin 97 Supporting pin 98 Stopper G Fixed part P Moving part FW Front wheel H Lowering amount S1 Forward movement amount S2 Lateral movement amount Lmax Maximum opening width Lmin Minimum opening width L1 Arbitrary tire width L2 Tire width K after clamping T Compression amount L3 maximum fulcrum pin distance L4 minimum fulcrum pin distance

Claims (2)

A clamp plate with rubber plates firmly attached from both sides to the front wheel upper side of the motorcycle that is mounted upright is arranged on both the left and right sides of the front wheel stopper on the motorcycle center line, making it possible to adjust the distance between the left and right clamp plates. By moving the moving frame with the front bike wheels upright, the left and right moving bodies that are pivotally supported have opposite screw holes in the same axial direction, and the left and right moving bodies have opposite screw holes on both sides. The threaded shaft is fitted, and the upper side of the front wheel is abutted from the left and right by the clamp plate to which the rubber plate is fixed by the toggle mechanism of the two sets of upper links and lower links arranged at the front and rear of the moving body. Next, for the front wheel upper clamp, by operating the pedal, the upper link pivots around the upper link fulcrum to the bike center line side by pushing down the lifting base plate connected to the lower link by the toggle clamp linked to the pedal A front wheel clamp device for a motorcycle, wherein the clamp plate and the rubber plate are further pressed against the bike center line side, and the upper side surface of the front wheel is pressed from the left and right. A torque limiter with a torque setting function that converts the linear motion of the moving part into a rotational motion by a rack and pinion by the advance of the moving frame, increases the speed by the speed increaser, and sets the resistance torque generated on the screw shaft by the tire contact pressure The front wheel clamp device for a motorcycle according to claim 1, further comprising a torque limiter that rotates idly when detected by the motor and returns to a predetermined torque or less and rotates forward and backward.

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