WO2010140764A1 - Machine de coulée à mode convertible - Google Patents

Machine de coulée à mode convertible Download PDF

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Publication number
WO2010140764A1
WO2010140764A1 PCT/KR2010/002130 KR2010002130W WO2010140764A1 WO 2010140764 A1 WO2010140764 A1 WO 2010140764A1 KR 2010002130 W KR2010002130 W KR 2010002130W WO 2010140764 A1 WO2010140764 A1 WO 2010140764A1
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WO
WIPO (PCT)
Prior art keywords
fixing pin
fixing
mode
lower frame
moving means
Prior art date
Application number
PCT/KR2010/002130
Other languages
English (en)
Korean (ko)
Inventor
김현우
Original Assignee
Kim Hyun-Woo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kim Hyun-Woo filed Critical Kim Hyun-Woo
Publication of WO2010140764A1 publication Critical patent/WO2010140764A1/fr

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Classifications

    • 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
    • B60B33/0002—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
    • B60B33/0018—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor in the form of a flat mounting plate
    • 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
    • B60B33/0078—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 tire tread

Definitions

  • the present invention relates to a caster capable of mode switching, and more particularly, to a caster including a fixed upper frame, a lower frame rotatably coupled to the upper frame, and a wheel rotating in combination with the lower frame. Rotating portion coupled to the wheel to rotate with the wheel; A fixing pin connected to the lower frame (upper frame) and interlocked with or fixed to the upper frame (lower frame) by interlocking with the following fixing pin moving means; By including a fixed pin moving means for moving the fixing pin by using the rotation of the rotating unit, it is possible to easily switch between the fixed mode of the lower frame fixed state or the rotation mode of the lower frame can be rotated state
  • the present invention relates to a caster capable of switching modes.
  • Casters used in transport carts or baby carriages used in large shops or airports can be easily moved by pushing or pulling without heavy force even under heavy loads.
  • Carrying carts usually have four wheels, and two or four of them are mounted in a caster shape. In this case, the following problems occur when using a conventional caster.
  • the wheels located in the direction of rotation among the two fixed wheels will function as the rotating shaft when moving in a straight direction. It has the advantage of being able to easily resist inertia to go straight, thereby facilitating a change of direction with little force, but if you want to move sideways while stationary, friction between the two fixed wheels and the floor It is difficult to move sideways in the narrow space by the side or difficult to move to the exact position in the narrow space by this, there is a problem that requires a separate operation to reduce the friction, such as lifting the fixed wheels.
  • the present invention has been made to solve the above problems,
  • the object of the present invention is not only to switch the caster to the rotational mode that can be freely changed or the fixed mode that can be fixed in a straight direction, but also to easily change the mode with a simple operation of slightly backward or forward the wheel.
  • a caster capable of mode switching to facilitate the change of direction while going straight as well as lateral movement in a narrow space.
  • Another object of the present invention is to provide a caster capable of mode switching that can be easily switched between modes by allowing the elastic force of the elastic member to be used in the process of switching back to the fixed mode after the wheel is rotated by the reverse of the wheel. .
  • Still another object of the present invention is to provide a caster capable of mode switching, which can prevent friction between members and damage to the members generated when the caster changes direction in the rotation mode.
  • the caster capable of mode switching for achieving the above object of the present invention includes the following configuration.
  • the mode changeable caster according to the present invention includes a fixed upper frame, a lower frame rotatably coupled to the upper frame, and a wheel that rotates to couple to the lower frame.
  • a caster comprising: a rotating portion coupled to the wheel to rotate together with a wheel; A fixing pin connected to the lower frame and interlocked with the fixing pin moving means to be bound or released from the upper frame; By including a fixed pin moving means for moving the fixing pin by using the rotation of the rotating unit, it is possible to easily switch between the fixed mode of the lower frame fixed state or the rotation mode of the lower frame can be rotated state It is characterized by being.
  • the rotating part in the caster capable of mode switching according to the present invention, includes a protruding protrusion, and the upper frame has a fixing groove in which the fixing pin is embedded so that the fixing pin can be engaged in the fixing mode.
  • the fixing pin is hinged to the lower frame, one end of the fixing pin includes a fixing projection that can be bound to the fixing groove of the upper frame, the other end of the fixing pin is hinged to the fixing pin moving means Is coupled, the fixing pin moving means is one end hinged to the fixing pin, the other end is characterized in that it comprises a projection engaging portion that can be caught in the projection of the rotating part.
  • the rotating part includes a protruding protrusion
  • the upper frame is a fixing groove in which the fixing pin is engaged so that the fixing pin can be engaged in the fixing mode.
  • the fixing pin is hinged to the lower frame, one end of the fixing pin includes a fixing projection that can be bound to the fixing groove of the upper frame, the other end of the fixing pin to the fixing pin moving means Hinge coupled,
  • the fixed pin moving means is a fixed pin coupling portion hinged to the fixed pin and moving inside the lower frame; Rotating portion coupling portion hinged to the protruding end of the fixed pin coupling portion and formed with a projection engaging portion that can be caught by the projection of the rotating portion;
  • the lower frame is a fixed pin coupling portion that can be moved by inserting the fixed pin coupling portion It characterized in that it comprises an insertion hole.
  • the fixing pin coupling part in the caster capable of mode switching according to the present invention, includes a protrusion on one side, and the lower frame rotates the protrusion in the fixing pin coupling part insertion hole.
  • the fixing pin coupling portion spring located in the moving direction in the process of switching to the mode, the fixed pin can be easily converted to the fixed mode by the elastic force of the fixed pin coupling portion spring.
  • the rotating part includes a protruding protrusion
  • the upper frame is a fixing groove in which the fixing pin is engaged so that the fixing pin can be engaged in the fixing mode.
  • the fixing pin is a fixing projection that can be bound to the fixing groove of the upper frame;
  • the lower frame is characterized in that it comprises a fixing pin insertion hole that the fixing pin is inserted to move.
  • the fixing pin in the caster capable of mode switching according to the present invention, includes a protrusion on one side, and the lower frame switches the protrusion into the rotation mode in the fixing pin insertion hole.
  • a fixing pin spring located in the moving direction in the process, it is characterized in that the fixing pin can be easily switched to the fixed mode by the elastic force of the fixing pin spring.
  • the auxiliary wheel is included at the end of the fixing protrusion of the fixing pin, so that the lower frame is easily in the rotating mode in which the lower frame rotates. It is possible to rotate as well as to prevent damage due to friction of the fixing projections.
  • the rotating part includes a moving means insertion groove into which the fixing pin moving means can be inserted and the moving means insertion groove has a length.
  • the upper frame includes a fixing groove which is embedded so that the fixing pin can be engaged in the fixing mode
  • the fixing pin is hinged to the lower frame
  • one end of the fixing pin is the upper
  • the other end of the fixing pin includes a moving means catching portion that can be caught by the fixing pin moving means only when the rotating part rotates in the reverse direction
  • the fixing The pin moving means is formed in a shape in which the included angle between the two sides is smaller than the shape of the moving means insertion groove, and through the moving means insertion groove. Is hinged to the rotary part is characterized in that it can be rotated according to the rotation direction of the rotation unit.
  • the caster capable of mode switching according to the present invention includes a fixed upper frame, a lower frame rotatably coupled to the upper frame, and a wheel rotating in combination with the lower frame.
  • a caster comprising: a rotating portion coupled to the wheel to rotate together with a wheel;
  • a fixing pin connected to the upper frame and linked with the following fixing pin moving means to bind or release the binding to the lower frame;
  • the rotating part in the caster capable of mode switching according to the present invention, includes a protruding protrusion, and the upper frame includes a fixing pin groove into which the fixing pin can be inserted.
  • the lower frame includes a groove for moving means to which the fixing pin moving means can be inserted and connected, and the fixing pin moves downward to the moving means groove located below the fixing pin groove in the fixing mode and binds to the lower frame.
  • the fixing pin moving means is characterized in that when the rotating part rotates in the reverse direction, one end is caught by the projection of the rotating part to move the fixing pin upward to release the binding with the lower frame.
  • the lower frame includes a protruding jaw to prevent the fixing pin moving means from falling down in the groove for the moving means
  • the fixing The pin moving means includes a protrusion corresponding to the protruding jaw
  • the upper frame includes a fixing pin spring positioned in a moving direction in the process of switching the fixing pin into the rotation mode within the fixing pin groove. It is characterized in that the fixing pin can be easily switched to the fixed mode by the elastic force of the pin spring.
  • an auxiliary wheel is included at the end of the fixing pin, so that the lower frame can easily rotate in the rotation mode in which the lower frame rotates.
  • it is characterized in that to prevent damage by the friction of the fixing pin.
  • the rotating part includes a protruding protrusion, and one end of the fixing pin is hinged to the upper frame and the other end of the lower frame. It includes a fixing projection that can be bound to the fixed pin moving part insertion hole, the fixing pin moving means is a fixed pin moving unit for moving the fixing pin while moving inside the lower frame; And a rotating part coupling part hinged to the protruding end of the fixing pin moving part and formed with a projection catching part capable of being caught by the projection of the rotating part, wherein the lower frame includes a fixing pin to which the fixing pin moving part is inserted and moved. It characterized in that it comprises a moving part insertion hole.
  • the fixing pin moving part in the caster capable of mode switching according to the present invention, includes a protrusion on one side, and the lower frame has the protrusion in the fixing pin moving part insertion hole.
  • the fixing pin moving part spring located in the moving direction in the process of switching to the rotation mode, the fixed pin moving part can be easily switched to the fixed mode by the elastic force of the fixed pin moving part spring do.
  • the hinge of the upper frame or the lower frame and the fixing pin is easily restored to the fixed mode by the elastic force in the fixed mode. It is characterized in that the restoring spring to be formed.
  • the present invention can obtain the following effects by the configuration, combination, and use relationship described above with the present embodiment.
  • the present invention can not only change the caster to a rotation mode that can be freely changed direction or a fixed mode that can be fixed in a straight direction, but also to be able to easily switch the mode by a simple operation of moving the wheel slightly backward or forward, In addition to lateral movement in a narrow space, it provides a caster capable of mode switching to facilitate straight forward direction change.
  • the present invention provides a caster capable of mode switching that enables easy mode switching by allowing the elastic force of the elastic member to be used in the process of switching back to the fixed mode after the wheel is rotated by the reverse of the wheel.
  • the present invention provides a caster capable of mode switching to prevent friction between members and damage to the members generated when the caster changes direction in the rotation mode.
  • FIG. 1 is a cross-sectional view of a state in which a caster capable of mode switching according to an embodiment of the present invention is switched to a rotating mode while reversing;
  • FIG. 2 is a cross-sectional view of a state capable of switching the mode according to an embodiment of the present invention is converted to a fixed mode while moving forward
  • Figure 3 is a cut plan view of the AA 'portion of the upper frame in Figure 1
  • FIG. 4 is a cross-sectional view of a state capable of switching the mode according to another embodiment of the present invention is converted to the rotation mode while reversing
  • FIG. 5 is a cross-sectional view of a state in which the caster capable of mode switching according to another embodiment of the present invention is switched to the fixed mode while moving forward;
  • FIG. 6 is a cross-sectional view of a state capable of switching the mode according to another embodiment of the present invention is converted to the rotation mode while reversing
  • FIG. 7 is a cross-sectional view of the caster capable of mode switching according to FIG. 6 being switched to the fixed mode while advancing
  • FIG. 8 is a cross-sectional view of a state capable of switching the mode according to another embodiment of the present invention is converted to the rotation mode while reversing
  • FIG. 9 is a cross-sectional view of a state capable of switching the mode according to FIG.
  • FIG. 10 is a cross-sectional view of a state in which the caster capable of mode switching according to another embodiment of the present invention is switched to the rotating mode while reversing;
  • FIG. 11 is a cross-sectional view of the caster capable of mode switching according to FIG. 10 being switched to the fixed mode while advancing
  • FIG. 12 is a cross-sectional view of a state in which the caster capable of mode switching according to another embodiment of the present invention is switched to the rotating mode while reversing;
  • FIG. 13 is a cross-sectional view of the caster capable of mode switching according to FIG. 12 being switched to the fixed mode while advancing
  • FIG. 14 is a cross-sectional view showing the operation relationship of the restoring spring in the caster capable of mode switching according to an embodiment of the present invention.
  • fixing pin 6 fixing pin moving means 7: restoring spring
  • Fixing groove 12 Fixing pin groove 13: Fixing pin spring
  • Fixing pin spring 25 Fixing pin moving part insertion hole 26: Fixing pin moving part spring
  • protrusion 42 groove for moving means 421: long side 422: short side ⁇ 1: included angle
  • protrusion engaging portion 62 fixing pin coupling portion 621: protruded end 622: protrusion
  • rotating unit coupling portion 64 fixing pin moving portion 641: protruding end 642: protrusion
  • FIG. 1 is a cross-sectional view of a state changeable caster according to an embodiment of the present invention is converted to the rotation mode while reversing
  • Figure 2 is a fixed mode while the mode switchable caster according to an embodiment of the present invention
  • 3 is a cross-sectional view of a portion A-A 'of the upper frame in FIG. 1
  • FIG. 14 illustrates an operation relationship of a restoring spring in a caster capable of mode switching according to an embodiment of the present invention. It is sectional drawing.
  • a caster capable of mode switching includes a fixed upper frame 1, a lower frame 2 rotatably coupled to the upper frame 1, A caster comprising a wheel (3) to rotate in conjunction with the lower frame (2), comprising: a rotating portion (4) coupled to the wheel (3) to rotate with the wheel; A fixing pin (5) connected to the lower frame (2) and interlocked with or fixed to the upper frame (1) by interlocking with the following fixing pin moving means (6); A fixing pin moving means (6) for moving the fixing pin (5) using the rotation of the rotating part (4), wherein the rotating part (4) includes a protruding protrusion (41), and the upper frame (1) includes a fixing groove (11) embedded in the fixing mode so that the fixing pin (5) can be engaged, the fixing pin (5) is hinged to the lower frame (2), fixing pin ( One end of the 5) includes a fixing protrusion 51 that can be coupled to the fixing groove 11 of the upper frame 1, the other end of the fixing pin 5 is hinged to the fixing pin moving means (6) Is coupled
  • the upper frame 1 is a part attached to and fixed to the bottom of a shop cart or an industrial cart, and serves as a central axis of the caster, and a lower portion of the upper frame 1 is generally circular in consideration of the rotation of the caster. It can be formed as, the lower frame 2 to be described later is coupled to the lower portion rotatably.
  • the upper frame 1 includes a fixing groove 11 in which the fixing pin 5 is engaged in the fixing mode, and the fixing groove 11 has a lower circular shape of the upper frame 1.
  • the fixing pin 5 preferably the fixing protrusion 51 to be described later, can be inserted at a point where the fixing pin 5 will be located. It is formed.
  • the lower frame 2 is a part rotatably coupled by using a known means such as a ball bearing in the lower portion of the upper frame 1, the upper portion of the lower frame 1 is generally considering the rotation of the caster It can be formed in a circular shape and the wheel 3 to be described later is fixedly coupled to be rotated.
  • the upper circular portion of the lower frame 1 may be formed at a position higher than the wheels 3 so as not to interfere with the wheels 3, or grooves (not shown) may be formed at portions interfering with the wheels 3. have.
  • the wheel 3 is a part which is fixedly coupled to the lower part of the lower frame 2 to rotate while rubbing against the ground, and the lower frame 2 when the lower frame 2 is switched to the rotation mode for changing direction Will be rotated integrally with One side or both sides of the wheel (3) or between the wheel (3) may be coupled to the rotating portion (4) capable of moving the fixing pin moving means 6 by using the rotation of the wheel.
  • the rotating part 4 is a part which rotates together with the wheel 3 between one side or both sides of the wheel 3 or between the wheels 3, and is fixed while being combined with the wheels 3 to rotate together.
  • the pin moving means 6 may be formed in various shapes as long as it can move.
  • the pin moving means 6 may be formed in a circular shape having a radius smaller than that of the wheel 3.
  • a plurality of protrusions 41 protruding in a sawtooth shape, etc. may be formed, the protrusions 41 are engaged with the protrusion coupling portion 61 and the like, which will be described later, in particular, when the rotating part 4 rotates in the backward direction, the fixing pins. It is possible to move the moving means 6 and its operation will be described later.
  • the fixing pin (5) is connected to the lower frame (2) and is linked to the following fixing pin moving means (6) is a portion which is bound or released from the upper frame (1), the fixing pin (5) It is coupled to the lower frame (2) by a hinge (h1) at its central portion, one end thereof includes a fixing protrusion (51) which can be bound to the fixing groove (11) of the upper frame (1), the other end
  • the one end of the fixing pin moving means 6 may be coupled to the hinge (h2). Therefore, the fixing pin 5 is coupled to or released from the upper frame 1 in response to the movement of the fixing pin moving means 6, thereby fixing the lower mode or the lower frame 2 in the fixed state.
  • the frame 2 can be switched to the rotation mode in a rotatable state, the operation principle of which will be described later.
  • the fixing protrusion 51 is formed in a shape corresponding to the shape of the fixing groove 11 is protruded from one end that the fixing pin 5 abuts the fixing groove 11 of the upper frame (1). In part, the fixing protrusion 51 is bound to the fixing groove 11 so that the lower frame 2 is maintained in a fixed mode that can no longer be rotated.
  • an end of the fixing protrusion 51 may include an auxiliary wheel 54, the auxiliary wheel 54 is fixed to the end of the fixing protrusion 51 to rotate, the rotation mode
  • the hinge h1 coupled to the lower frame 2 and the fixing pin 5 has a restoring spring 7 for easily restoring the position of the fixing pin 5 to the fixed mode by an elastic force.
  • the restoring spring 7 surrounds the hinge h1 as shown separately in FIG.
  • the fixing pin moving means 6 is a part for moving the fixing pin 5 by using the rotation of the rotating part 4, one end of which is coupled to one end of the fixing pin 5 by a hinge h2.
  • the other end includes a projection catching portion 61 which can be caught by the projection 41 of the rotating part 4.
  • the protrusion catching portion 61 may be formed by being recessed into a shape corresponding to the protrusion 41 so as to be caught by the protrusion 41 of the rotating part 4.
  • the process of converting the caster to the rotation mode will be described.
  • the wheel 3 rotates backward, that is, clockwise (1 direction).
  • the rotation part 4 also rotates clockwise (1 direction)
  • the protrusion 41 is caught by the protrusion catching part 61 of the fixing pin moving means 6 to move the fixing pin moving means 6. It moves in the (i) direction.
  • one end of the fixing pin 5 connected by the fixing pin moving means 6 and the hinge h2 is also moved in the same direction, and thus the hinge h1.
  • the fixing projection 51 of the fixing pin 5 is rotated in the counterclockwise direction (a direction) to be separated from the fixing groove 11 of the upper frame (1). Accordingly, the lower frame 2 is switched to the rotation mode that can freely rotate the direction. As shown in FIG. 3, when the lower frame 2 rotates ( ⁇ direction), the fixing protrusion 51 may cause friction while interfering with the outer circumferential surface of the upper frame 1.
  • An auxiliary wheel 54 is formed at the end of the fixing protrusion 51 so that the auxiliary wheel 54 rotates along the outer circumferential surface of the upper frame 1 ( ⁇ direction) and the fixing protrusion 51 and the upper portion. It is possible to prevent the friction between the frames 1 and the resulting damage.
  • the fixing protrusion 51 rotates in the clockwise direction (b direction)
  • the other end of the fixing pin 5 also rotates in the same direction about the hinge h1, and thus the hinge h2 is rotated in the same direction.
  • the fixed pin moving means 6 which is connected by the movable means 6 moves in the (ii) direction, and both the rotating part 4 and the wheel 3 rotate in the counterclockwise direction (2 direction) while the caster is fixed in the fixed mode to move forward. do.
  • Such a caster capable of mode switching according to an embodiment of the present invention can be easily switched to the rotation mode with a simple operation of slightly reversing the wheel, and also easy to switch to the fixed mode by using the elastic force of the elastic member. Can be switched.
  • Figure 4 is a cross-sectional view of the state changeable caster according to another embodiment of the present invention is converted to the rotation mode while the reverse
  • Figure 5 is a caster capable of mode switching according to another embodiment of the present invention the fixed mode It is sectional drawing of the state switched to.
  • a caster capable of mode switching includes a fixed upper frame 1, a lower frame 2 rotatably coupled to the upper frame 1, A caster comprising a wheel (3) to rotate in conjunction with the lower frame (2), comprising: a rotating portion (4) coupled to the wheel (3) to rotate with the wheel; A fixing pin (5) connected to the lower frame (2) and interlocked with or fixed to the upper frame (1) by interlocking with the following fixing pin moving means (6); A fixing pin moving means (6) for moving the fixing pin (5) using the rotation of the rotating part (4), wherein the rotating part (4) includes a protruding protrusion (41), and the upper frame (1) includes a fixing groove (11) embedded in the fixing mode so that the fixing pin (5) can be engaged, the fixing pin (5) is hinged to the lower frame (2), fixing pin ( One end of the 5) includes a fixing protrusion 51 that can be coupled to the fixing groove 11 of the upper frame 1, the other end of the fixing pin 5 is hinged to the fixing pin moving means (6) Coupled,
  • the fixing pin moving means 6 is a portion for moving the fixing pin 5 by using the rotation of the rotating part 4 as in the previous embodiment, the fixing pin 5 and the hinge (h2) is coupled A fixed pin coupling part 62 moving inside the lower frame 2; Rotating portion coupling portion 63 having a hinge (h3) is coupled to the protruding end 621 of the fixed pin coupling portion 62 and the projection engaging portion 61 is caught to the projection 41 of the rotating portion (4) It is formed to include.
  • the fixing pin coupling part 62 is a part for moving the fixing pin 5 coupled by the hinge h2 while stably moving in the fixing pin coupling part insertion hole 21 which will be described later.
  • Protruding portion 622 is formed at one side of the pin coupling portion 62 to press the fixed pin coupling portion spring 22 to be described later, or to use its elastic force, and at one side, a protruding end 621 is formed and hinged.
  • the fixed pin coupling portion 62 and the rotary coupling portion 63 are interlocked together by being connected to the rotary coupling portion 63 by (h3).
  • the rotatable engaging portion 63 is coupled to the fixed pin engaging portion 62 and the hinge (h3) at one end thereof while the other end of the projection engaging portion 61 that can be caught on the projection 41 of the rotating portion (4) Is formed to move in conjunction with the rotation of the rotary unit 4 to move the fixing pin coupling portion 62 together.
  • the lower frame 2 includes a fixing pin coupling part inserting hole 21 in which the fixing pin coupling part 62 is inserted and movable, and the fixing pin at the bottom of the fixing pin coupling part inserting hole 21.
  • the through hole is formed so that the protruding end 621 of the coupling portion 62 may protrude therethrough, and the protrusion 622 and the fixing pin coupling portion spring 22 of the fixing pin coupling portion 62 are positioned on the upper portion thereof.
  • the movable space can be formed.
  • the fixing pin coupling part spring 22 is an elastic member having an elastic force (for example, a spring) and the protrusion part 622 moves in the direction in which the protrusion 622 of the fixing pin coupling part 62 is converted into a rotation mode. 622 is located in connection with the caster is pressed by the protrusion 622 in the process of switching to the rotation mode, and the protrusion 622 is moved by the elastic force in the process of casting the caster in the fixed mode.
  • One end of the fixing pin 5 connected to the fixing pin coupling part 62 is also moved in the same direction by the hinge h2 according to the movement of the fixing pin coupling part 62, and thus the hinge h1.
  • the fixing projection 51 of the fixing pin 5 is rotated in the counterclockwise direction (a direction) to be separated from the fixing groove 11 of the upper frame (1). Accordingly, the lower frame 2 is switched to the rotation mode that can freely rotate the direction.
  • the process of converting the caster back to the fixed mode will be described.
  • the lower frame 2 moves forward of the wheel 3. It is rotated so that it can be placed in a straight line and the fixing projections 51 of the fixing pin (5) is in the position coinciding with the fixing groove 11 of the upper frame (1), the fixing pin coupling portion
  • the fixing pin coupling portion As the protrusion 622 of the fixing pin coupling portion 62 is pushed by the elastic force of the spring 22 (or the elastic force of the restoring spring 7 formed at the hinge h1), the fixing pin coupling portion 62 is also pushed.
  • Figure 6 is a cross-sectional view of the state changeable caster according to another embodiment of the present invention is converted to the rotation mode while the reverse
  • Figure 7 is a mode changeable caster according to another embodiment of the present invention while the forward It is sectional drawing of the state switched to fixed mode.
  • a caster capable of mode switching includes a fixed upper frame 1 and a lower frame 2 rotatably coupled to the upper frame 1;
  • the caster comprising a wheel (3) to rotate in combination with the lower frame (2), coupled to the wheel (3) to rotate with the wheel (4);
  • a fixing pin (5) connected to the lower frame (2) and interlocked with or fixed to the upper frame (1) by interlocking with the following fixing pin moving means (6);
  • Fixing protrusions 51 that can be;
  • the fixing pin 5 is a portion which is connected to the lower frame 2 and linked with the fixing pin moving means 6 to be bound or released from the upper frame 1, as in the previous embodiments, Moving in the fixing pin insertion hole 23 of the lower frame 2 to be described later, one end is formed with a fixing projection 51 that can be bound to the fixing groove 11 of the upper frame (1) The other end is formed with a protrusion 52 for protruding means to be coupled to the fixing pin moving means 6 and the hinge (h2), the fixing projections 51 in accordance with the movement of the fixing pin moving means (6) It can be separated from the fixing groove 11, a detailed description thereof will be described later.
  • one side of the fixing pin 5 may be formed with a protrusion 53 that protrudes and moves within the fixing pin insertion hole 23, which presses or fixes the elastic pin spring 24 to be described later. That's where it becomes available.
  • the lower frame 2 includes a fixing pin insertion hole 23 which can be moved by the fixing pin 5 is inserted, the lower portion of the fixing pin insertion hole 23 is a projection 52 for the movement means
  • a through hole may be formed to protrude through, and a space in which the protrusion 53 and the fixing pin spring 24 may be positioned may move.
  • the fixing pin spring 24 is an elastic member having an elastic force (for example, a spring) and is positioned in connection with the protrusion 53 in a moving direction in the process of the protrusion 53 being switched to the rotation mode. In the process of switching to the rotation mode is pressed by the protrusion 53, in the process of the caster is converted to the fixed mode to move the protrusion 53 by the elastic force.
  • the fixing pin moving means 6 connected by the hinge h2 also moves in the (ii) direction, and the rotating part 4 and the wheel 3 are both While rotating counterclockwise (2 direction), the caster is fixed in the fixed mode and advanced.
  • FIG 8 is a cross-sectional view of a state changeable caster according to another embodiment of the present invention is converted to the rotation mode while the reverse
  • Figure 9 is a mode changeable caster according to another embodiment of the present invention while the forward It is sectional drawing of the state switched to fixed mode.
  • the caster capable of mode switching includes a fixed upper frame 1 and a lower frame 2 rotatably coupled to the upper frame 1.
  • the caster comprising a wheel (3) to rotate in combination with the lower frame (2), coupled to the wheel (3) to rotate with the wheel (4);
  • a fixing pin (5) connected to the lower frame (2) and interlocked with or fixed to the upper frame (1) by interlocking with the following fixing pin moving means (6);
  • the rotating part 4 is a part that rotates together with the wheel 3, and unlike the above-described embodiments, instead of the protrusion 41, a moving means inserting means into which the fixing pin moving means 6 can be inserted is connected.
  • the moving means insertion groove 42 may be formed as a 'v' shaped grooves having two sides (421,422) of different lengths forming a constant angle ( ⁇ 1), the moving means insertion groove
  • the fixed pin moving means 6 to be described later into 42 is connected.
  • the fixing pin 5 is hinged (h1) to the lower frame (2), one end of the fixing pin has a fixing protrusion 51 that can be bound to the fixing groove 11 of the upper frame (1)
  • the other end of the fixing pin includes a moving means catching part 55 that can be caught by the fixing pin moving means 6 only when the rotating part 4 rotates in the backward direction.
  • the moving means catching part 55 is formed to a length such that it does not directly contact the rotating part 4, and the rotating part 4 or the fixed part when the rotating part 4 rotates in the forward direction (2 direction).
  • the long side 6a of the fixing pin moving means 6 which is not in contact with the pin moving means 6 but protrudes from the outer circumferential surface of the rotating part 4 when the rotating part 4 rotates in the backward direction (1 direction). Contact and rotate in the (i) direction.
  • the fixing pin moving means 6 has a shape corresponding to the moving means insertion groove 42, and the lengths of two sides 6a and 6b having different lengths are two sides 421 and 422 of the moving means insertion groove 42. ) Is equal to the length of, but the included angle ( ⁇ 2) between the two sides (6a, 6b) is formed in a shape smaller than the included angle ( ⁇ 1) between the two sides (421,422) of the moving means insertion groove 42, the moving means The hinge h4 is coupled to the rotating part 4 in the insertion groove 42 to be rotated according to the rotation direction of the rotating part 4.
  • the fixed pin moving means 6 when the rotating part 4 rotates in the counterclockwise direction (2 direction) to move forward, the fixed pin moving means 6 has a long side 6a of the long side 421 of the moving means insertion groove 42.
  • the fixed pin moving means 6 is not in contact with the moving means catching portion 55 of the fixing pin 5 because it rotates in contact with the rotary pin 4, but clockwise (1 direction) for the rotating part 4 to move backward.
  • the fixing protrusion 51 of the fixing pin 5 moves around the hinge h1 in the direction a and the fixing groove 11 of the upper frame 1 is moved. ). Accordingly, the lower frame 2 is switched to the rotation mode that can freely rotate the direction.
  • the moving means catching part 55 rotates in the (ii) direction about the hinge h1, and the fixing pin moving means 6 and the rotating part. Both the 4 and the wheel 3 rotate in the counterclockwise direction (2 direction), and the caster is fixed and moved forward in the fixed mode.
  • Figure 11 is a mode changeable caster according to another embodiment of the present invention while the forward It is sectional drawing of the state switched to fixed mode.
  • a caster capable of mode switching includes a fixed upper frame 1, a lower frame 2 rotatably coupled to the upper frame 1 and In the caster comprising a wheel (3) to rotate in combination with the lower frame (2), coupled to the wheel (3) to rotate with the wheel (4); A fixing pin (5) connected to the upper frame (1) and linked to or fixed to the lower pin (2) to be connected to the lower frame (2); A fixing pin moving means (6) for moving the fixing pin (5) using the rotation of the rotating part (4), wherein the rotating part (4) includes a protruding protrusion (41), and the upper frame (1) comprises a fixing pin groove 12 which can be connected to the fixing pin (5), the lower frame (2) is a movement means groove (27) that can be connected to the fixing pin moving means (6) ), Wherein the fixing pin (5) is moved downward in the fixing means groove (27) located in the lower portion of the fixing pin groove (12) in the fixing mode and is bound to the lower frame (2), the fixing The pin moving means (6) when the rotating part 4 is rotate
  • the upper frame 1 includes a fixing pin groove 12 into which the fixing pin 5 can be inserted, and the fixing pin groove 12 is recessed upwardly from the lower portion of the upper frame 1.
  • the fixing pin 5 is moved therein.
  • a fixing pin spring 13 is included in the fixing pin groove 12, and the fixing pin spring 13 is an elastic member (for example, a spring) having an elastic force as in the fixing pin spring 24.
  • the fixing pin 5 is positioned in connection with the fixing pin 5 in the moving direction in the process of switching to the rotation mode, and is pressed by the fixing pin 5 in the process of changing the caster to the rotation mode, and the caster is fixed. In the process of switching to the mode is to move the fixing pin (5) by the elastic force.
  • the lower frame 2 includes a moving means groove 27 to which the fixing pin moving means 6 can be inserted and connected, and the moving means groove 27 is located at a position corresponding to the fixing pin groove 12. Is formed so that the fixing pin (5) of the fixing pin groove 12 is also moved to the groove for the moving means 27 to fix the lower frame (2).
  • the fixing pin moving means (6) inserted into the moving means groove (27) is in contact with the lower portion of the fixing pin (5) at the top to be able to move the fixing pin (5).
  • the moving means groove 27 is formed with a protruding jaw 271 protruding from the inner circumferential surface, which is to prevent the fixing pin moving means 6 inserted into the moving means groove 27 from being separated.
  • the moving means 6 is provided with a protrusion 6c corresponding to the protruding jaw 271 so that the fixing pin moving means 6 is not detached by the protruding portion 6c being caught by the protruding jaw 271. .
  • the fixing pin 5 is formed in a shape corresponding to the fixing pin groove 12 and the moving means groove 27, in the fixing mode by the elastic force of the fixing pin spring 13 in the fixing pin groove 12
  • the lower frame (2) is fixed by moving to the moving means groove (27), and in the rotating mode, the fixed pin moving means (6) is pushed into the fixing pin groove (12).
  • the fixing pin moving means (6) is a part for moving the fixing pin (5) while moving in the groove (27) for the moving means by the projection (41) of the rotating part (4), the fixing pin moving means ( One end of the 6) is located in the groove 27 for the moving means, and the other end thereof is caught by the protrusion 41 when the rotary part 4 rotates in the reverse direction (clockwise, 1 direction).
  • the fixing pin 5 is formed to a length enough to be separated to the outside of the groove 27 for the moving means.
  • one end of the fixing pin moving means 6 located in the moving means groove 27 may include a protrusion 6c corresponding to the protrusion jaw 271, wherein the protrusion 6c is the protrusion jaw.
  • the locking pin moving means 6 is prevented from being separated from the groove 27 for the moving means by being caught by the 271.
  • the fixing pin moving means (6) may be formed in the middle of the bending incision (6e), the bending incision (6e) is the fixing pin moving means (6) of the rotating part (4) It is to prevent the interference of the rotation of the rotary part 4 by interfering with the projection 41 during the rotation of the forward direction (counterclockwise, 2 direction), the middle of the fixing pin moving means (6) And the other side of the side in contact with the protrusion 41 of the incision surface is formed to form a '>' groove and then the hinged upper and lower sections are combined by the rotating portion (4) while rotating in the forward direction the bending When the protrusions 41 are in contact with the fixing pin moving means 6 at the lower portion of the melt cut portion 6e, the fixing pin moving means 6 is bent around the bending cutout 6e to rotate the rotating part. We do not disturb rotation of (4).
  • the fixing pin moving means 6 which is in contact with the fixing pin 5 also moves in the (ii) direction, and the rotating part ( 4) and the wheel 3 are both rotated counterclockwise (2 direction), the caster is fixed in the fixed mode to move forward.
  • the fixing pin moving means 6 is bent around the bending cutout 6e as described above so as not to interfere with the protrusion 41 of the rotating part 4 rotating counterclockwise (2 direction). This does not interfere with the rotation of the rotating part (4).
  • Figure 12 is a cross-sectional view of a state changeable caster according to another embodiment of the present invention is converted to the rotation mode while the reverse
  • Figure 13 is a mode changeable caster according to another embodiment of the present invention while the forward It is sectional drawing of the state switched to fixed mode.
  • a caster capable of mode switching includes a fixed upper frame 1 and a lower frame 2 rotatably coupled to the upper frame 1.
  • the caster comprising a wheel (3) to rotate in combination with the lower frame (2), coupled to the wheel (3) to rotate with the wheel (4);
  • a fixing pin (5) connected to the upper frame (1) and linked to or fixed to the lower pin (2) to be connected to the lower frame (2);
  • a fixing pin moving means (6) for moving the fixing pin (5) using the rotation of the rotating part (4), wherein the rotating part (4) includes a protruding protrusion (41), and the fixing pin (5) is one end is hinged to the upper frame (1), the other end includes a fixing protrusion 51 that can be bound to the following fixing pin moving part insertion hole 25 of the lower frame (2),
  • the fixed pin moving means (6) is a fixed pin moving part 64 to move in the lower frame (2) and to move the fixed pin (5); Rotating portion coupling portion 63 is hinged to the protruding end of the fixed pin moving portion 64
  • the fixing pin 5 has one end coupled to the upper frame 1 by a hinge h1, and the other end is bound to the following fixing pin moving part insertion hole 25 of the lower frame 2. It includes a fixing protrusion 51 which can be, whereby the fixing pin 5 is fixed pin moving part (6) of the fixing pin moving means (6) moving in the fixing pin moving part insertion hole (25) In connection with the movement of 64, the lower frame 2 is bound or released, thereby switching to a fixed mode in which the lower frame 2 is fixed or a rotating mode in which the lower frame 2 can be rotated. The operation principle will be described later.
  • the fixing pin moving means 6 is a portion for moving the fixing pin 5 by using the rotation of the rotating part 4 as in the previous embodiments, and the fixing pin moving part of the lower frame 2 is inserted.
  • a moving pin 64 moving in the ball 25 and coming into contact with the fixing protrusion 51 of the fixing pin 5; Hinge (h3) is coupled to the protruding end 641 of the fixed pin moving part 64 and the rotating portion engaging portion 63 is formed with a projection engaging portion 61 that can be caught on the projection 41 of the rotating part (4) It is formed to include.
  • the fixing pin moving part 64 is fixed to the fixing pin 5 which is fixed to the fixing pin moving part insertion hole 25 while stably moving in the fixing pin moving part insertion hole 25 which will be described later.
  • a protrusion 642 is formed at one side of the fixing pin moving part 64 to press the fixing pin moving part spring 26 to be described later, or to use the elastic force.
  • One end 641 protruding from the other side is connected to the rotary coupling unit 63 by a hinge h3 so that the fixed pin moving unit 64 and the rotary coupling unit 63 interlock together.
  • the rotatable portion engaging portion 63 is coupled to the fixing pin moving portion 64 and the hinge (h3) at one end thereof, the other end of the projection engaging portion 61 that can be caught on the projection 41 of the rotating portion 4 Is formed to move in conjunction with the rotation of the rotary unit 4 can move the fixing pin moving unit 64 together.
  • Detailed operation principle of the fixing pin moving means 6 will be described later.
  • the lower frame 2 includes a fixing pin moving part insertion hole 25 through which the fixing pin moving part 64 is inserted and moved.
  • the fixing pin is located below the fixing pin moving part insertion hole 25.
  • a through hole is formed so that the protruding end 641 of the moving part 64 can protrude through, and the protrusion 642 and the fixing pin moving part spring 26 of the fixing pin moving part 64 are positioned on the upper part thereof.
  • the movable space can be formed.
  • the fixing pin moving part spring 26 is an elastic member having an elastic force (for example, a spring) and the protrusion part in a direction in which the protrusion 642 of the fixing pin moving part 64 moves in the process of being converted to the rotation mode. 642), the caster is pressed by the protrusion 642 when the caster is switched to the rotation mode, and the protrusion 642 is moved by the elastic force when the caster is switched to the fixed mode.
  • the fixing pin moving portion 64 connected by the rotary coupling portion 63 and the hinge (h3) also in the same direction in the fixed pin moving portion insertion hole (25)
  • the protrusion 642 of the fixing pin moving part 64 presses the fixing pin moving part spring 26.
  • the fixing pin moving part 64 moves in the (i) direction
  • the fixing pin 51 of the fixing pin 5 bound in the fixing pin moving part insertion hole 25 is pushed, and thus The fixing protrusion 51 of the fixing pin 5 around the hinge h1 is rotated in a counterclockwise direction (a direction) so as to be separated from the fixing pin moving part insertion hole 25 of the lower frame 2. do. Accordingly, the lower frame 2 is switched to the rotation mode that can freely rotate the direction.
  • the process of switching the caster back to the fixed mode will be described.
  • the lower frame 2 moves forward of the wheel 3. Rotate so that it can be placed in a straight line in the direction when the fixing projection 51 of the fixing pin 5 is in the position coinciding with the fixing pin moving part insertion hole 25 of the lower frame (2),
  • the elastic force of the restoring spring (7) formed in the hinge (h1) is bound in the fixing pin moving part insertion hole 25 while rotating in the clockwise direction (b).
  • the fixing pin moving part 64 is pushed by the fixing protrusion 51 inserted into the fixing pin moving part insertion hole 25, as well as the protrusion 642 of the fixing pin moving part 64.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)

Abstract

La présente invention concerne une machine de coulée à mode convertible, et plus particulièrement une machine de coulée à mode convertible comprenant : un cadre supérieur fixe ; un cadre inférieur fixe accouplé de manière rotative au cadre supérieur ; une roue accouplée au cadre inférieur et tournant ; une unité rotative accouplée à la roue et tournant avec elle ; une goupille de verrouillage raccordée au cadre inférieur (ou au cadre supérieur) et s'articulant avec un moyen de déplacement de goupille de verrouillage de façon à être verrouillée ou déverrouillée depuis le cadre supérieur (ou le cadre inférieur) ; et ledit moyen de déplacement de goupille de verrouillage destiné à déplacer la goupille de verrouillage utilisant la rotation de l'unité rotative, ce qui permet ainsi une commutation aisée d'un mode à l'autre jusqu'à un mode fixe où le cadre inférieur est fixe, ou à un mode rotatif dans lequel le cadre inférieur est rotatif.
PCT/KR2010/002130 2009-06-05 2010-04-07 Machine de coulée à mode convertible WO2010140764A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020090049996A KR100993524B1 (ko) 2009-06-05 2009-06-05 모드전환이 가능한 캐스터
KR10-2009-0049996 2009-06-05

Publications (1)

Publication Number Publication Date
WO2010140764A1 true WO2010140764A1 (fr) 2010-12-09

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PCT/KR2010/002130 WO2010140764A1 (fr) 2009-06-05 2010-04-07 Machine de coulée à mode convertible

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KR (1) KR100993524B1 (fr)
WO (1) WO2010140764A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150306908A1 (en) * 2014-04-29 2015-10-29 Waxman Consumer Products Group Inc. Convertible caster assembly
EP3012116A4 (fr) * 2013-06-21 2017-06-07 Chae Jin Han Galet pivotant de chariot fixe et rotatif

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248445A (en) * 1979-06-18 1981-02-03 Vassar Hervey P Caster brake and swivel lock
JPH0563902U (ja) * 1992-02-04 1993-08-24 有限会社井口商店 構造物用キャスターのロック装置
KR0141040B1 (ko) * 1995-06-26 1998-06-01 김태구 혼합식 캐스터 휠 구조
US20070089265A1 (en) * 2005-10-21 2007-04-26 Paul Lin Lockable wheel assembly and cart including the same
JP2008001355A (ja) * 2006-05-25 2008-01-10 Nansin Co Ltd 二重ロック式キャスタ
KR100828016B1 (ko) * 2000-02-17 2008-05-08 콤비 가부시키가이샤 유모차용 캐스터

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006059490A (ja) 2004-08-23 2006-03-02 Toshiba Corp 半導体記憶装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248445A (en) * 1979-06-18 1981-02-03 Vassar Hervey P Caster brake and swivel lock
JPH0563902U (ja) * 1992-02-04 1993-08-24 有限会社井口商店 構造物用キャスターのロック装置
KR0141040B1 (ko) * 1995-06-26 1998-06-01 김태구 혼합식 캐스터 휠 구조
KR100828016B1 (ko) * 2000-02-17 2008-05-08 콤비 가부시키가이샤 유모차용 캐스터
US20070089265A1 (en) * 2005-10-21 2007-04-26 Paul Lin Lockable wheel assembly and cart including the same
JP2008001355A (ja) * 2006-05-25 2008-01-10 Nansin Co Ltd 二重ロック式キャスタ

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3012116A4 (fr) * 2013-06-21 2017-06-07 Chae Jin Han Galet pivotant de chariot fixe et rotatif
US20150306908A1 (en) * 2014-04-29 2015-10-29 Waxman Consumer Products Group Inc. Convertible caster assembly
US9428009B2 (en) * 2014-04-29 2016-08-30 Waxman Consumer Products Group Inc. Convertible caster assembly

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