WO2011105563A1 - 手元ブレーキ付きキャスター - Google Patents
手元ブレーキ付きキャスター Download PDFInfo
- Publication number
- WO2011105563A1 WO2011105563A1 PCT/JP2011/054336 JP2011054336W WO2011105563A1 WO 2011105563 A1 WO2011105563 A1 WO 2011105563A1 JP 2011054336 W JP2011054336 W JP 2011054336W WO 2011105563 A1 WO2011105563 A1 WO 2011105563A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- brake
- lever
- force
- caster
- wheel
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000012212 insulator Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C5/00—Rigid or semi-rigid luggage
- A45C5/14—Rigid or semi-rigid luggage with built-in rolling means
- A45C5/145—Rigid or semi-rigid luggage with built-in rolling means with immobilising means, e.g. means for blocking the wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
- B60B33/0015—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor
- B60B33/0023—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor in the form of specific adaptations to the form of the object
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0028—Construction of wheels; methods of assembling on axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0036—Castors in general; Anti-clogging castors characterised by type of wheels
- B60B33/0039—Single wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
- B60B33/0049—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being horizontal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
- B60B33/0057—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being offset from swivel axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
- B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
- B60B33/0068—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being vertical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
- B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
- B60B33/0073—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being symmetrical to wheel or wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
- B60B33/0081—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism acting on tyre tread
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
- B60B33/0086—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism acting on rim or side portion of tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
- B60B33/0092—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism actuated remotely, e.g. by cable or electrically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
- B60B33/021—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism combined with braking of castor wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/10—Reduction of
- B60B2900/111—Weight
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/10—Reduction of
- B60B2900/112—Costs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2900/00—Purpose of invention
- B60B2900/10—Reduction of
- B60B2900/115—Complexity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
- B62B2301/04—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors
- B62B2301/046—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors with means restricting the rotation about that axis
- B62B2301/0467—Wheel arrangements; Steering; Stability; Wheel suspension comprising a wheel pivotable about a substantially vertical axis, e.g. swivelling castors with means restricting the rotation about that axis combined with means for braking the wheel
Definitions
- the present invention relates to a caster with a hand brake for dredging, and more particularly, to a caster with a hand brake that locks a caster wheel with a hand operating part.
- the “caster locking mechanism” disclosed in Patent Document 1 can be operated with a small force. As shown in FIG. 10 (a), the leading end and the trailing end of the lever portion can be moved up and down alternately. The wheels of the caster part can be locked by moving the stopper part upward.
- the upper end side of the arm portion is connected to the rear end side of the lever portion, and is slidable in the vertical direction.
- One end side of the first connecting rod is rotatably fixed to the heel body side, and the other end side is connected to the lower end side of the arm portion.
- the middle of the second connecting rod is rotatably fixed to the heel body side, one end side is connected to one end of the first connecting rod, and the other end side is connected to the stopper portion.
- the “caster used in a suitcase” disclosed in Patent Document 2 has a reliable braking effect and is convenient for operation.
- a wheel seat having an upper through hole is fixed to the suitcase.
- a bracket having a lower through hole is in contact with the wheel seat at the shaft.
- the rotating part and the restraining part are installed coaxially in contact with the bracket at the shaft.
- the diameter of the rotating part of the ring body is larger than the diameter of the stop part.
- the switching member is in contact with the wheel seat at the shaft and can swing between the first position and the second position.
- There is a contact end and a drive end The contact end appears outside the wheel seat.
- the driven rod is formed in the upper through hole of the wheel seat and the lower through hole of the bracket.
- the top end of the driven rod is in contact with the drive end of the switching member at the shaft.
- the brake member is connected to the bottom end of the driven rod and has a stop portion.
- the “suitcase” disclosed in Patent Document 3 has a brake structure that simultaneously stops the rotation of two casters.
- a case body, two caster units, a control component, two actuating components, and two interlocking components are provided.
- the caster unit includes a hollow shaft tube, a caster base, and a caster.
- the control component is axially connected on the case body and can be switched between a brake position and a non-brake position.
- the front end of the control component is provided with a tactile end that provides an external force action, and the drive end is provided at the rear end.
- the operating component is located at the top end in the case body and the bottom end outside the case body, and has at least one stopper portion at the bottom end.
- One end of the interlocking component and the drive end of the control component are connected to each other, and the other end is connected to the top end of the operating component.
- the conventional caster with a hand brake requires a strong force to lock the tire
- the locking mechanism and the shape of the parts to be locked are complicated and large, which is costly and cumbersome to operate.
- the conventional type that operates with the foot that is not operated at hand needs to match the shape of the toe of the shoe, and it is not easy to perform the brake operation with the foot, and it may damage the shoe etc. is there.
- the heel In any of the methods, in which the caster tires are individually locked, the heel is not fixed just by locking one tire, and the heel rotates around the locked tire. Need to be locked.
- the object of the present invention is to solve the above-mentioned conventional problems and improve the usability of a caster with a hand brake for dredging while reducing the size and weight of the caster.
- a plurality of wheels having tires, a fork portion that rotatably supports the wheels by an axle, and a fork portion that is pivotally supported by a hollow cylindrical swivel shaft.
- a hand brake comprising a connecting wire for transmitting the force to the driving part from the place and an operating part for pulling the connecting wire and locking a plurality of wheels in one operation, a rotating knob and a rotating knob
- a double crank that is fixed and has two crank arms, and two links each having one end connected to the double crank and the other end connected to a connecting wire.
- the link is operated so as to lock the rotary knob by reversing the rotational moment due to the spring force when the rotary knob is turned more than a predetermined angle, so that the brake pin passes through the inside of the turning shaft and comes into contact with the tire.
- the drive portion is transmitted to the brake pin by increasing the force of the connecting wire by the action of the lever.
- the operation unit includes an operation lever, two cranks connected to the operation lever, and two links each having one end connected to the crank and the other end connected to a connection wire. When it is turned more than a predetermined angle, it works to lock the control lever by reversing the rotational moment due to the spring force.
- the operation unit includes a rotary knob, a crescent moon cam fixed to the rotary knob, and a rectangular link in which one end is in contact with the crescent moon cam and a connecting wire is connected to the other end. When the knob is rotated more than a predetermined angle, it works to lock the rotary knob by reversing the rotational moment due to the spring force.
- the caster with a hand brake can be reduced in size, weight and cost. Furthermore, since a plurality of caster wheels can be locked with one operation, it is easy to use.
- the connecting wire is pulled with the rotary knob of the operation unit away from the wheel, and the force is applied to the brake pin passing through the inside of the swing shaft of the fork unit through the lever on the wheel.
- It is a caster with a hand brake that presses the brake pin against the tire to prevent the wheel from rotating.
- Fig. 1 shows the configuration of the wheel part of a caster with a hand brake.
- FIG. 2 shows the configuration of the brake system. 3 to 5 show the configuration of the operation unit. 6 and 7 show the configuration of the brake drive unit.
- FIG. 8 shows an operation procedure using the rotary knob.
- FIG. 9 shows an operation procedure using the operation lever.
- a tire 1 is a rotating ground member made of rubber or the like.
- the wheel 2 is a rotating member in which a tire is put on the outer periphery of a plastic rim or the like.
- the fork unit 3 is a member that supports the wheel rotatably on the axle.
- the base portion 4 is a member that is fixed to the bag main body and holds the fork portion so as to be able to turn.
- the brake pin 5 is a member that abuts on the tire and prevents rotation of the tire.
- the brake drive unit 6 is a mechanism that presses the brake pin against the tire with a lever.
- the connecting wire 7 is a wire that connects the operation unit and the drive unit.
- a rod or the like may be used instead of the wire.
- the connecting wire is meant to include a rod or the like.
- the operation unit 8 is a mechanism for pulling the connecting wire.
- the double crank 9 is a crank having two arms on one shaft.
- the link 10 is a member that connects the crank and the wire.
- the operation lever 11 is an operation lever for pulling the connecting wire.
- the bearing 12 is a bearing that supports the pivot shaft so as to be pivotable.
- the rotary knob 13 is a mechanism for pulling a wire.
- the operation members such as the rotary knob and the operation lever are represented by the rotary knob.
- the turning shaft 14 is a rotating shaft for turning the fork portion.
- the axle 15 is an axis that rotates the wheel.
- the rim 16 is a member that connects the tire and the axle.
- the sheath 17 is a member that holds the wire. The sheath and the wire may be simply called a wire.
- the insulator 18 is a member that is pulled by a wire and pushes a brake pin.
- the adjusting screw 19 is a means for adjusting the pressing force of the brake pin by adjusting the relative positional relationship between the wire and the sheath.
- the bag main body 20 is a baggage storage part of the bag.
- the rectangular link 21 is a rectangular frame-like member that draws a wire.
- the crescent moon cam 22 is a crescent-shaped cam that moves the rectangular link in accordance with the rotation of the rotary knob.
- FIG. 1A shows a side view of caster wheels.
- FIG. 1B shows a front view of the caster wheel.
- FIG. 1C shows a side view of the caster wheel and the brake drive unit.
- a wheel 2 including a tire 1 and a rim 16 is rotatably supported by a fork portion 3 via an axle 15.
- the fork portion 3 is supported by the base portion 4 so as to be rotatable.
- a hollow swivel shaft 14 is turnably attached to the bearing of the base portion 4.
- connection wire 7 is pulled by turning the rotary knob of the operation part, and the connection wire 7 is used to brake as shown in FIG. Pull the lever 18 of the drive unit 6.
- the force of the connecting wire 7 is increased by the action of the lever 18, and the brake pin 5 passing through the inside of the turning shaft 14 of the fork portion 3 is pressed against the tire 1 of the wheel 2.
- the connecting wire 7 a force may be transmitted by a combination of a link and a rod.
- An operation lever that pulls a wire or pushes a link may be used instead of the rotary knob of the operation unit.
- Suitcases and carry cases are usually equipped with 2 to 4 wheels, but these multiple wheels can be locked with a single operation by the operating unit at hand. Even if the brake drive unit 6 is provided directly above the wheel 2, the wheel 2 can be easily locked by remote control using an operation unit installed at a distant position. Since the operation unit and the brake drive unit 6 are connected by a space-saving connecting wire 7, even if this brake system is externally or internally mounted on a suitcase or a carry case, there is an adverse effect that restricts the design or content of the bag. Very few. By simply changing the length and bending method of the connecting wire 7, the operation unit can be installed at an arbitrary position. In addition, since the operation unit is composed of a rotary knob, a double crank and a link that are familiar to everyday life, it can be easily operated with a small size and light weight and can be braked strongly with a sufficient stroke.
- FIGS. 2B, 2F, 2G, and 2H show the locked state of the brake.
- the structure of the brake drive unit 6 is very simple, but a strong pressing force can be obtained. While the shape of the brake pin 5 that contacts the tire is very simple, the wheel can be strongly locked. Although only two wheels are locked in this embodiment, a plurality of wheels can be locked simultaneously by branching the connecting wire 7.
- the connecting wire 7 can be freely deformed in shape and can be flexibly adapted according to the size, shape and material of the ridge, so that it is very easy to attach to the ridge.
- FIGS. 3A to 3C use an L-shaped link 10 guided in a groove.
- 3D to 3F use a C-shaped link 10 that does not use a guide groove. In either case, when the rotary knob 13 is turned to a certain angle, the rotation moment in the reverse direction works and is locked. Instead of pulling the connecting wire 7, two rods may be pushed.
- the double crank 9 attached to the shaft rotates.
- One arm of an L-shaped link 10 is connected to the double crank 9.
- a connecting wire 7 is connected to the other arm.
- the corner portion of the link 10 moves while being guided by the guide groove.
- the connecting wire 7 is urged toward the brake release side by a spring.
- the connecting wire 7 is pulled by the operation lever 11 instead of the rotary knob. Only the rotation axis of the operation lever 11 is 90 degrees different from the rotation axis of the rotary knob, and the functions and operations of the other parts are almost the same.
- the crank connected to the operating lever 11 pulls the link 10 and the connecting wire 7 connected to the link 10 is pulled.
- the operation lever 11 is raised to a certain angle or more, the spring force that pulls the connecting wire 7 acts to tilt the operation lever 11 in the brake lock direction, so that the operation lever 11 is stably held at the brake position. .
- the crescent moon cam 22 is directly connected to the shaft of the rotary knob. When the crescent moon cam 22 is further rotated after the rectangular link 21 is pulled up to the highest level, the crescent moon cam 22 receives a rotational moment in the opposite direction, so that it receives a force in the left direction and hits the left inner side of the rectangular link 21 to hold it stably. Is done.
- FIG. 6A shows an appearance of an example of the brake drive unit 6.
- FIGS. 6B to 6E show the external appearance of another example of the brake drive unit 6.
- the insulator 18 is movably fastened to the frame of the brake drive unit 6 with a spring pin.
- the brake pin 5 and the connecting wire 7 are movably fastened to the insulator 18 with a spring pin.
- the brake pin 5 passes through a turning shaft that is a hollow cylinder.
- the head of the brake pin 5 is fastened to the point of action of the linear insulator 18 so as to be rotatable by a spring pin.
- the fulcrum of the lever 18 is rotatably attached to the rod body through the frame of the brake drive unit 6.
- the power point of the insulator 18 is connected to the connecting wire 7.
- the sheath of the connecting wire 7 is fixed to the frame of the brake drive unit 6. Since the connecting wire 7 is biased by a spring in the brake release direction, the brake pin 5 is separated from the tire 1 in the released state.
- the connecting wire 7 is pulled in the direction to apply the brake by operating the rotary knob 13 of the operation unit 8, the lever 18 is pulled by the connecting wire 7, the action point of the lever 18 pushes the brake pin 5, and the brake pin 5 Pressed against the tire 1.
- the brake pin 5 stops the rotation of the wheel 2 by pushing the ground contact surface of the tire 1 diagonally. Even if the pulling force of the connecting wire 7 is small, the connecting wire 7 has a long stroke, so the force is increased by the lever 18 and the tire 1 is pushed with a strong force. Even if the stroke of the brake pin 5 is small, an open position sufficiently separated from the tire 1 can be secured, and the tire 1 can be pressed sufficiently at the brake position.
- the axis of the brake pin 5 is the same as the turning axis, even if the wheel 2 turns, a constant position can always be maintained with respect to the wheel 2.
- the brake pin 5 is held in a state of being strongly pressed against the tire 1, so that the wheel 2 cannot rotate.
- the turning of the fork portion 3 is also suppressed by the brake pin 5.
- the brake pin 5 comes into contact with the vicinity of 45 degrees on the upper right part of the outer periphery of the tire 1.
- the tip of the brake pin 5 has a taper of about 45 degrees, and the tapered surface of the tip of the brake pin 5 is in close contact with the outer peripheral surface of the tire 1. Since the brake pin 5 itself does not rotate, it functions to suppress the fork 3 from turning. It is more effective if vertical stripes are provided on the tapered surface of the tip of the brake pin 5.
- the turning shaft 14 of the fork portion 3 is tilted, so that the frictional resistance between the turning shaft 14 of the fork portion 3 and the bearing 12 increases, and the fork portion 3 cannot turn.
- the fork portion 3 since the turning of the fork portion 3 is strongly suppressed by the brake pin 5, the fork portion 3 does not turn at a normal swing level in the train.
- a method of using a link as an elastic member there are various methods such as a method of using a link as an elastic member, a method of using a connecting wire as an elastic wire, and a method of using a lever of a brake drive unit as a wire spring.
- a method of using the insulator 18 as a wire spring will be described.
- the insulator 18 is composed of a single spring.
- FIG. 7A shows the appearance of the brake drive unit 6 of the first modification.
- FIG. 7B shows the inside of the brake drive unit 6.
- FIG. 7C shows an insulator 18 constituted by one spring.
- the insulator 18 is composed of two springs.
- FIG. 7D shows the appearance of the brake drive unit 6 of the second modification.
- FIG. 7E shows the inside of the brake drive unit 6.
- FIG. 7F shows an insulator 18 composed of two springs. There is no functional difference between the two variants. Since the integrated type in which the insulator 18 is constituted by a single spring is easier to assemble than the split type constituted by two springs, errors in the assembling work are less likely to occur. However, if the accuracy of the spring of the integrated type is the same as that of the split type, the cost increases. Therefore, the split type has better spring accuracy at the same cost.
- the brake pin 5 When the connecting wire 7 is pulled by the operation unit, the brake pin 5 is pressed against the tire via the insulator 18. At this time, since the insulator 18 is a spring, the insulator 18 functions as a buffer material for the brake pin 5. That is, even if the connecting wire 7 is pulled strongly, the force is absorbed by bending the lever 18, and the brake pin 5 is not strongly pressed by the tire. Since the reaction of the brake pin 5 is not directly transmitted to the operation unit, the brake operation feeling becomes soft. Even if the movement of the brake pin 5 differs from the movement of the operating part due to the dimensional error of each part of the remote control brake mechanism or the assembly error during assembly, the force of the lever 18 is always within a certain range due to the spring action.
- the brake pin 5 is pressed against the tire. That is, since the wire spring lever 18 absorbs the variation, the brake operability and the sense of rotation of the operation lever are within a certain range, and the adjustment with the adjusting screw of the connecting wire 7 is facilitated.
- the connecting wire 7 is biased by a spring and is in a brake released state position.
- the double crank 9 rotates and pulls one end of the link 10 as shown in FIG.
- the link 10 moves while being guided by the guide groove, and pulls the connecting wire 7.
- the double crank 9 and the link 10 become close to a straight line as shown in FIG.
- the rotary knob is further rotated, as shown in FIG.
- FIG. 9A when the operation lever 11 is in the down position, the connecting wire 7 is pulled by the spring and is in the brake release position.
- FIG. 9B when the operating lever 11 is slightly raised, the connecting wire 7 is pulled a little and pushes the brake pin a little.
- FIG. 9C When the operation lever 11 is further raised from the state shown in FIG. 9C, the connecting wire 7 comes to the maximum movement position as shown in FIG. 9D.
- FIG. 9E the operation lever 11 receives a force in the reverse direction from the connecting wire 7 and stops stably.
- the caster with a hand brake is connected to the fork portion through the lever on the wheel by pulling the connecting wire with the rotary knob of the operation portion located away from the wheel. Since the force is transmitted to the brake pin passing through the inside of the turning shaft and the brake pin is pressed against the tire to prevent the wheel from rotating, it is small and light, low cost, and easy to use.
- the caster with a hand brake of the present invention is most suitable as a caster for dredging. It can also be used as a caster with brakes for other carts.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
- Braking Arrangements (AREA)
Abstract
Description
2 車輪
3 フォーク部
4 ベース部
5 ブレーキピン
6 ブレーキ駆動部
7 連結ワイヤー
8 操作部
9 ダブルクランク
10 リンク
11 操作レバー
12 ベアリング
13 回転つまみ
14 旋回軸
15 車軸
16 リム
17 鞘
18 梃子
19 調整ネジ
20 鞄本体
21 矩形リンク
22 三日月カム
Claims (5)
- タイヤを有する複数の車輪と、前記車輪を回転可能に車軸で支持するフォーク部と、前記フォーク部を中空円筒状の旋回軸で旋回可能に支持するように鞄本体に固定されたベース部と、前記車輪の回転を阻止するためのブレーキピンと、前記ブレーキピンを前記タイヤの外周接地面に押し付ける駆動部と、バネによりブレーキ開放方向に付勢されており前記車輪から離れたところから前記駆動部に力を伝達する連結ワイヤーと、前記連結ワイヤーを引いて複数の前記車輪を1操作でロックする操作部とを具備する手元ブレーキ付きキャスターであって、前記操作部は、回転つまみと、前記回転つまみに固定されて2つのクランク腕を有するダブルクランクと、それぞれ一端が前記ダブルクランクに連結され他端が前記連結ワイヤーに連結された2つのリンクとを備え、前記リンクは、前記回転つまみが所定角度以上回されたとき前記バネの力による回転モーメントを逆転させて前記回転つまみをロックするように働き、前記ブレーキピンは、前記旋回軸の内部を通って前記タイヤに当接するようになっており、前記駆動部は、梃子の作用により前記連結ワイヤーの力を大きくして前記ブレーキピンに伝えるものであることを特徴とする手元ブレーキ付きキャスター。
- タイヤを有する複数の車輪と、前記車輪を回転可能に車軸で支持するフォーク部と、前記フォーク部を中空円筒状の旋回軸で旋回可能に支持するように鞄本体に固定されたベース部と、前記車輪の回転を阻止するためのブレーキピンと、前記ブレーキピンを前記タイヤの外周接地面に押し付ける駆動部と、バネによりブレーキ開放方向に付勢されており前記車輪から離れたところから前記駆動部に力を伝達する連結ワイヤーと、前記連結ワイヤーを引いて複数の前記車輪を1操作でロックする操作部とを具備する手元ブレーキ付きキャスターであって、前記操作部は、操作レバーと、前記操作レバーに連結された2つクランクと、それぞれ一端が前記クランクに連結され他端が前記連結ワイヤーに連結された2つのリンクとを備え、前記リンクは、前記操作レバーが所定角度以上回されたとき前記バネの力による回転モーメントを逆転させて前記操作レバーをロックするように働き、前記ブレーキピンは、前記旋回軸の内部を通って前記タイヤに当接するようになっており、前記駆動部は、梃子の作用により前記連結ワイヤーの力を大きくして前記ブレーキピンに伝えるものであることを特徴とする手元ブレーキ付きキャスター。
- タイヤを有する複数の車輪と、前記車輪を回転可能に車軸で支持するフォーク部と、前記フォーク部を中空円筒状の旋回軸で旋回可能に支持するように鞄本体に固定されたベース部と、前記車輪の回転を阻止するためのブレーキピンと、前記ブレーキピンを前記タイヤの外周接地面に押し付ける駆動部と、バネによりブレーキ開放方向に付勢されており前記車輪から離れたところから前記駆動部に力を伝達する連結ワイヤーと、前記連結ワイヤーを引いて複数の前記車輪を1操作でロックする操作部とを具備する手元ブレーキ付きキャスターであって、前記操作部は、回転つまみと、前記回転つまみに固定された三日月カムと、一端の内側が前記三日月カムに当接して他端に前記連結ワイヤーが連結された矩形リンクとを備え、前記矩形リンクは、前記回転つまみが所定角度以上回されたとき前記バネの力による回転モーメントを逆転させて前記回転つまみをロックするように働き、前記ブレーキピンは、前記旋回軸の内部を通って前記タイヤに当接するようになっており、前記駆動部は、梃子の作用により前記連結ワイヤーの力を大きくして前記ブレーキピンに伝えるものであることを特徴とする手元ブレーキ付きキャスター。
- 前記梃子は、1部品からなるバネ性梃子であることを特徴とする請求項1~3のいずれかに記載の手元ブレーキ付きキャスター。
- 前記梃子は、2部品からなるバネ性梃子であることを特徴とする請求項1~3のいずれかに記載の手元ブレーキ付きキャスター。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CN201180011012.9A CN102770283B (zh) | 2010-02-25 | 2011-02-25 | 带手动制动器的小脚轮 |
EP11747519.4A EP2540522B1 (en) | 2010-02-25 | 2011-02-25 | Caster system equipped with hand-operated brakes |
JP2011518105A JP5506794B2 (ja) | 2010-02-25 | 2011-02-25 | 手元ブレーキ付きキャスター |
US13/578,586 US8806714B2 (en) | 2010-02-25 | 2011-02-25 | Caster system equipped with hand-operated brakes |
HK13105453.4A HK1177610A1 (en) | 2010-02-25 | 2013-05-07 | Caster system equipped with hand-operated brakes |
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JP2010-039622 | 2010-02-25 | ||
JP2010039622 | 2010-02-25 | ||
JP2010095593 | 2010-04-19 | ||
JP2010-095593 | 2010-04-19 |
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WO2011105563A1 true WO2011105563A1 (ja) | 2011-09-01 |
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PCT/JP2011/054336 WO2011105563A1 (ja) | 2010-02-25 | 2011-02-25 | 手元ブレーキ付きキャスター |
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---|---|
US (1) | US8806714B2 (ja) |
EP (1) | EP2540522B1 (ja) |
JP (1) | JP5506794B2 (ja) |
CN (1) | CN102770283B (ja) |
HK (1) | HK1177610A1 (ja) |
WO (1) | WO2011105563A1 (ja) |
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CN105151102A (zh) * | 2015-09-08 | 2015-12-16 | 国网山东省电力公司济南供电公司 | 一种电力施工转运车用踩踏锁轮刹车器 |
JP2016064028A (ja) * | 2014-09-25 | 2016-04-28 | 株式会社日乃本錠前 | キャスターのブレーキ装置 |
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US9216754B2 (en) | 2013-02-01 | 2015-12-22 | Sinox Lock (Kunshan) Co. Ltd. | Wheel brake set for luggage case |
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Also Published As
Publication number | Publication date |
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CN102770283B (zh) | 2015-05-13 |
JP5506794B2 (ja) | 2014-05-28 |
CN102770283A (zh) | 2012-11-07 |
EP2540522B1 (en) | 2016-04-20 |
EP2540522A1 (en) | 2013-01-02 |
JPWO2011105563A1 (ja) | 2013-06-20 |
US8806714B2 (en) | 2014-08-19 |
EP2540522A4 (en) | 2014-01-22 |
US20120311821A1 (en) | 2012-12-13 |
HK1177610A1 (en) | 2013-08-23 |
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