JP2015209700A - Tire gripper and automobile transfer device having the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tire gripper which is reducible in weight of a tire griping arm, and can make a vehicle travel with a tip of the tire gripping arm floated at transfer.SOLUTION: In a tire gripper 10 which is arranged at a bogie 11 moving on a placing face 4, and grips a tire from a fore-and-aft direction by a pair of tire gripping arms 20, 21 which rotate the tire from the bogie 11 to a sideway, the tire gripping arms 20, 21 comprise base end parts 22, 23 which are supported to support shafts 24 arranged at the bogie 11, and rotatably support the tire gripping arms 20, 21 in a horizontal direction; and hinge mechanisms 29 which support the tire gripping arms 20, 21 in a vertical direction so as to be oscillatory in the vicinity of the base end parts 22, 23. The bogie comprises a guide 80 which rotates the tire gripping arms 20, 21 in a horizontal direction, and makes the tire gripping arms 20, 21 float at the accommodation of the arms along the bogie 11.

Description

  The present invention relates to a tire holding device that holds and lifts automobile tires in an automobile storage facility or the like, and an automobile conveyance device including the same.

  2. Description of the Related Art Conventionally, in automobile storage facilities, for example, there are those in which an automobile is placed on a pallet and the pallet is stored in a storage place by a transporter, such as an elevator parking device or a plane reciprocating parking device.

  However, in such an apparatus, it may take time to convey the pallet, and an apparatus that can convey the automobile without requiring the pallet has been proposed. For example, a set of four turning arms are provided at the front and rear of the carriage, respectively, and the turning arms are turned horizontally by 90 degrees below the automobile to sandwich the front and rear wheels of the automobile, respectively. There is a transfer device which is lifted from a placement surface (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 6-2449

  However, in the case of the above-described prior art, the structure of the rotation support portion (base portion) of the tire clamping arm, particularly the tire clamping arm used, is rigidly fixed in the direction perpendicular to the rotation axis. Therefore, all the vertical loads when the tire is clamped and lifted must be received by the fixing portion of the tire clamping arm. Therefore, in order to bear all the load when the tire is sandwiched and floated from the mounting surface and transported by the rotation support part, the arm must have high rigidity and strength, and the base that fixes the arm is required. High rigidity is required. For this reason, the weight of a trolley | bogie becomes large and must be an expensive component structure.

  On the other hand, when the tip of the arm is brought into contact with the mounting surface so as to receive a part of the load, when moving between the automobile and the mounting surface to clamp the tire, the tire clamping arm is attached to the carriage. Drive along with it open. For this reason, if the tip of the arm is in contact with the mounting surface at this time, there is a risk that it will become a running resistance and be damaged.

  Accordingly, an object of the present invention is to provide a tire clamping device capable of reducing the weight of the tire clamping arm and allowing the tip of the tire clamping arm to float during movement, and an automobile transport device including the tire clamping device. To do.

  In order to achieve the above object, a tire clamping apparatus according to the present invention is provided on a carriage that moves a mounting surface, and a tire that clamps a tire in the front-rear direction by a pair of tire clamping arms that rotate sideways from the carriage. In the clamping device, the tire clamping arm is supported by a support shaft provided on the carriage and supports the tire clamping arm so as to be rotatable in a horizontal direction, and in the vicinity of the base end portion, A hinge mechanism that supports the tire clamping arms so as to be swingable in the vertical direction, and the tire clamping arms are placed on the mounting surface when the arms are retracted by rotating the pair of tire clamping arms horizontally with respect to the carriage. The carriage is provided with a guide that floats from the top. The “front-rear direction” in the specification and claims refers to the same direction as the front-rear direction of the automobile, and the “left-right direction” refers to the horizontal direction orthogonal to the front-rear direction. The “mounting surface” in the specification and claims refers to a surface on which the carriage moves, such as a floor surface on which the carriage travels and a floor surface of the storage unit.

  With this configuration, the hinge mechanism provided in the vicinity of the support shaft that rotatably supports the tire clamping arm in the horizontal direction allows the front end portion of the tire clamping arm to be in proper contact with the mounting surface, and the tire is clamped The vertical load can be appropriately distributed and held in the tip portion and the hinge mechanism portion. Therefore, the structure of the tire clamping device can be simplified by suppressing the rigidity of the portion where the tire clamping arm and the support shaft are provided. In addition, since the tire clamping arm is floated by a predetermined distance from the mounting surface by the guide when retracted, the tire clamping arm can move stably without causing running resistance when the automobile transport device is driven.

  The tire clamping arm includes an arm shaft supported by the hinge mechanism, and a cylindrical body that is rotatably provided around a rotation axis parallel to an extending direction of the arm shaft, and the guide May be configured to support the cylindrical body from below and to float the tire clamping arm.

  If comprised in this way, when storing a tire clamping arm, since a cylinder contacts a guide and rotates, it will be stored in the upper part of a guide, and a tire clamping arm can be smoothly supported by a guide.

  Further, the tire clamping arm is rotatable at a tip portion around a rotation axis parallel to the extending direction of the tire clamping arm, and at least a ground contact surface thereof is positioned below a lower end of the tire clamping arm. A roller may be in contact with the placement surface during clamping, and the guide may be configured to support an intermediate portion of the tire clamping arm from below and to float the roller from the placement surface.

  If comprised in this way, since the tire clamping arm is floated by supporting the middle part of the tire clamping arm in a state in which the lower end is separated from the mounting surface from below, it is placed on the carriage by a certain distance from the mounting surface. Can be easily arranged.

  In addition, the guide may have a tapered portion at an end portion that contacts when the tire clamping arm is retracted.

  If comprised in this way, when storing a tire clamping arm, it can get on smoothly along the taper part of a guide.

  The guide may have a concave receiving portion at a holding portion of the tire clamping arm.

  If comprised in this way, the tire clamping arm of a stored state can be received by a receiving part, and the tire clamping arm of a stored state can be stably located in the fixed position of a guide.

  The guide may further include an upper guide above the stored tire clamping arm.

  If comprised in this way, even if the force of an up-down direction arises when moving a motor vehicle conveyance apparatus, it can prevent that a tire clamping arm jumps up.

  On the other hand, the automobile conveyance device according to the present invention is an automobile conveyance device provided with any one of the tire clamping devices in the left and right positions of the carriage, and the carriage includes traveling means that can move in the front-rear direction of the automobile. And is configured to be movable between the left and right wheels of the front tire of the automobile or between the left and right wheels of the rear tire.

  With this configuration, the traveling resistance is small when moving between the left and right wheels without sandwiching the tire of the automobile, and when the tire is sandwiched, the vehicle can be transported with the vertical load properly dispersed and held.

  According to the present invention, the structure of the tire clamping device can be simplified by appropriately dispersing and holding the vertical load applied when the tire is clamped and suppressing the rigidity of the portion where the tire clamping arm and the vertical support shaft are provided. It becomes possible. In addition, since the tire clamping arm is lifted by a predetermined distance from the mounting surface by the guide during storage, the tire clamping device can be stably moved.

FIG. 1 is a plan view showing an automobile conveyance device provided with a tire clamping device according to an embodiment of the present invention. FIG. 2 is a plan view showing a state in which the tire clamping arm is closed in the automobile conveyance device shown in FIG. 3 is a cross-sectional view of the tire clamping device portion shown in FIG. FIG. 4 is an enlarged plan view showing a state where the tire clamping arm of the tire clamping device shown in FIG. 1 is opened. FIG. 5 is an enlarged plan view showing a state where the tire clamping arm of the tire clamping device shown in FIG. 2 is closed. 6 (a) to 6 (c) are drawings showing another example of the guide shown in FIG. FIG. 7 is a side view showing a state before the vehicle is conveyed by the vehicle conveyance device shown in FIG. FIG. 8 is a plan view of the automobile transport apparatus shown in FIG. FIG. 9 is a plan view showing a state where the automobile is lifted by the automobile conveyance device from the state shown in FIG. FIG. 10 is a plan view showing a state in which the automobile is conveyed by the automobile conveyance device from the state shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, a tire clamping device provided in an automobile conveyance device that clamps and lifts an automobile tire and conveys the automobile in that state will be described. In this embodiment, a configuration in which the tire clamping arm is opened and closed by rotating the screw shaft will be described as an example.

  As shown in FIG. 1, the tire clamping device 10 provided in the automobile conveyance device 1 of this embodiment is provided on a carriage 11 disposed between tires of an automobile V (FIG. 8). The cart body 12 of the cart 11 is formed in a substantially rectangular shape in plan view, and the right and left direction (vertical direction in the figure) is formed in a size that fits between the tires TF and TR (FIG. 9) of the car. . The cart body 12 is formed such that the central portion 13 protrudes upward and extends in the front-rear direction M, and the support portion 14 in the left-right position is positioned below (FIG. 2). The tire clamping device 10 is disposed on the upper surface of the support portion 14 so that the two wheels of the front tire TF or the rear tire TR of the automobile are clamped from the inside by the tire clamping device 10 at the left and right positions ( FIG. 10).

  At the left and right positions of the carriage main body 12, wheels 16 serving as traveling means are provided front and rear. These four wheels 16 are rotatably supported by a wheel bracket 17 projecting upward from the cart body 12. The carriage 11 of this embodiment has a configuration that does not include a drive unit for self-propelling. Therefore, the carriage 11 can move the mounting surface 4 (for example, the floor surface) in the front-rear direction M by the four wheels 16 by applying a force in the front-rear direction M to the carriage main body 12 by another device (not shown). It has become. In addition, you may make the trolley | bogie 11 equip the drive machine for self-propelled.

  The tire clamping device 10 disposed on the upper surface of the support portion 14 is provided with a pair of tire clamping arms 20, 21 whose base end portions 22, 23 are rotatably supported by the carriage main body 12. . Hereinafter, the “tire holding arms 20 and 21” are also simply referred to as “arms 20 and 21”. These arms 20 and 21 are rotatable in the horizontal direction. In the illustrated pair of arms 20 and 21, the left side of the drawing is referred to as a first arm 20, and the right side of the drawing is referred to as a second arm 21. Further, the base end portion of the first arm 20 is also referred to as a first base end portion 22, and the base end portion of the second arm 21 is also referred to as a second base end portion 23. The configuration of the tire clamping device 10 shown at the top and bottom of the figure is line-symmetric with respect to the center line of the carriage 11 at the left and right positions.

  The arms 20 and 21 have base end portions 22 and 23 supported on a support shaft 24 provided on the upper surface of the support portion 14 so that the axis is in the vertical direction. A bearing 25 is provided between the base end portions 22 and 23 and the support shaft 24. By rotating the respective base end portions 22 and 23, the first arm 20 and the second arm 21 can be rotated in a horizontal plane. A large-diameter roller 28 is provided at the tip of these arms 20 and 21.

  Further, the tire clamping device 10 is provided with screw shafts 30 and 31 extending in the front-rear direction M along the wall surface 15 rising from the support portion 14 of the carriage main body 12 to the central portion 13. The screw shafts 30 and 31 of this embodiment are twisted in the opposite direction at the same pitch, are supported by bearings (not shown) of holding parts 33 and 34 provided at both ends, and the central part is connected by a coupling 32. Has been. These screw shafts 30 and 31 are rotationally driven by a driving machine 35 (drive motor) provided on an axially extending line.

  Further, nut members 40 and 41 are screwed onto the screw shafts 30 and 31, respectively. When the screw shafts 30 and 31 are rotated by the driving machine 35, the nut members 40 and 41 are moved in the opposite directions by the screw shafts 30 and 31 of the reverse screws, respectively. The screw shafts 30 and 31 and the nut members 40 and 41 can be configured to have a small loss of driving force by using ball screws.

  In addition, linear guides 50 and 51 extending in the front-rear direction M are provided on the outer sides of the screw shafts 30 and 31 in the left-right direction, in parallel with the screw shafts 30 and 31. These linear motion guides 50 and 51 have slide members 52 and 53 that move along rail members 54 extending in the front-rear direction M. As the linear motion guides 50 and 51, for example, those using rolling balls for linear movement of the slide members 52 and 53 (for example, LM guide (registered trademark)) are preferably used since the slide resistance is small. The slide members 52 and 53 are engaged with the nut members 40 and 41, and move in the front-rear direction integrally with the nut members 40 and 41.

  The movement position of the slide member 53 is detected by the sensors 70 and 71. When the slide member 53 reaches a predetermined position, the drive unit 35 is stopped and the arms 20 and 21 are stopped at the fixed positions. As the sensors 70 and 71, photoelectric sensors or the like are used, and by detecting that the slide member 53 has reached a predetermined position, the arms 20 and 21 are moved / stopped as having reached a predetermined angle.

  Further, between the base end portions 22 and 23 of the arms 20 and 21 and the slide members 52 and 53, link mechanisms 60 that rotate the base end portions 22 and 23 by linear movement of the slide members 52 and 53, respectively. Is provided. The arms 20 and 21 are in a state opened in the front-rear direction M of the carriage 11 (state shown in FIG. 1) when the carriage 11 is disposed between tires of the automobile V (FIG. 9).

  The carriage 11 is provided with a guide 80 that holds the arms 20 and 21 from below in a state of being opened in the front-rear direction M and floats the roller 28 at the front end portion at a predetermined distance from the mounting surface 4. . The guide 80 of this embodiment is a plate-like member provided so as to protrude from the left and right sides at the position of the wheel 16, and supports the intermediate portion of the arms 20, 21 from below. .

  As shown in FIG. 2, the tire clamping device 10 disposed on the support portion 14 of the cart body 12 has a support shaft 24 provided on the upper surface of the support portion 14 and a base end portion 22 ( 23) is supported. The base end portion 22 (23) is supported by a bearing 25 provided between the support shaft 24 and the arm 20 (21) can be smoothly rotated. The base end portion 22 (23) is provided with a support bracket 22a (23a) protruding laterally, and the base portion 26a of the arm shaft 26 of the arm 20 (21) is interposed between the support bracket 22a (23a). It is supported by a pin 26b having a horizontal axis. The hinge mechanism 29 is supported by the pin 26b. Therefore, the arm 20 (21) can swing in the vertical direction around the pin 26b by the hinge mechanism 29.

  A rotatable cylinder 27 is provided around the arm shaft 26. The cylindrical body 27 is formed in a cylindrical body, and is rotatable around the arm shaft 26 by bushes 27 a provided at both ends of the arm shaft 26. Furthermore, the roller 28 having a diameter larger than the outer shape of the cylindrical body 27 coaxial with the arm shaft 26 is provided at the distal end portion of the arm shaft 26 so as to be rotatable by a bearing 28a.

  The arms 20 and 21 of this embodiment are configured to have an arm shaft 26 with a circular cross section and a cylindrical body 27 with a cylindrical cross section provided around the arm shaft 26, but various modifications are possible as will be described later. is there. Further, a large-diameter roller 28 that is coaxial with the arm shaft 26 is provided, but this configuration can be variously modified as will be described later.

  According to such a tire clamping device 10, the tire clamping arm 20 () is provided by the hinge mechanism 29 provided in the vicinity of the base end portion 22 (23) that rotatably supports the tire clamping arm 20 (21) in the horizontal direction. 21) is appropriately brought into contact with the mounting surface 4, and the vertical load applied when the tire is clamped can be appropriately dispersed and held by the roller 28 and the hinge mechanism 29 at the tip portion. Therefore, the structure of the tire clamping device 10 can be simplified by suppressing the rigidity of the portion where the tire clamping arm 20 (21) and the support shaft 24 are provided, and the tire clamping device 10 can be configured to be lightweight and inexpensive.

  In addition, when the tire clamping arm 20 (21) is retracted (FIG. 1), the guide roller 80 (FIG. 1) causes the tip roller side to be centered on the pin 26b of the hinge mechanism 29 by a predetermined distance from the mounting surface 4. Since it floats, the tire holding arm 20 (21) can move stably without causing the running resistance when the automobile transport device 1 is run.

  FIG. 3 is a drawing of a state in which the first arm 20 and the second arm 21 of the tire clamping device 10 are closed and the tire TF (TR) is clamped. As shown in the figure, according to the tire clamping device 10, the nut members 40, 41 move in the reverse direction by rotating the screw shafts 30, 31 by the drive unit 35. Thereby, the slide members 52 and 53 engaged with the nut members 40 and 41 are moved along the rail member 54, and are provided at the base end portions 22 and 23 of the arms 20 and 21 via the link mechanism 60. The arm links 61 and 62 (FIGS. 4 and 5) are swung in the front-rear direction M in the reverse direction.

  Then, the arms 20, 21 are rotated in the reverse direction about the base end portions 22, 23 and closed toward the side of the carriage 11. The tire TF (TR) is sandwiched from the front-rear direction by the first arm 20 and the second arm 21 thus closed, and is lifted from the placement surface 4. The rotation angles of the first arm 20 and the second arm 21 are controlled by the movement positions of the slide members 52 and 53. In this embodiment, the movement position of the slide member 53 is controlled by the sensors 70 and 71.

  Next, the opening / closing operation of the arms 20 and 21 by the screw shafts 30 and 31 and the linear motion guides 50 and 51 and the link mechanism 60 and the arm holding by the guide 80 will be described with reference to FIGS. Since the configurations of the arms 20 and 21 and the like are axisymmetric configurations at the central portion in the front-rear direction of the carriage 11, the illustrated arm 21 side will be described, and the configuration on the arm 20 side will be described only with reference numerals.

  FIG. 4 is an enlarged plan view showing a state in which the tire clamping arms 21 and 20 of the tire clamping device 10 are opened in the front-rear direction M. As shown in the drawing, in a state where the arms 21 and 20 are opened, the nut members 41 and 40 screwed to the screw shafts 31 and 30 are located on the center side in the front-rear direction of the carriage 11. , 40 and the slide members 53, 52 that move integrally with each other are also located on the center side of the carriage 11 in the front-rear direction. The arms 21 and 20 in which the base end portions 23 and 22 are connected by the slide members 53 and 52 and the link mechanism 60 are along the side portion of the carriage 11 in an open state with the front-rear direction reversed.

  In the retracted state in which the arms 21 and 20 are opened as described above, the arms 21 and 20 are bent upward at the hinge mechanism 29 provided in the vicinity of the base end portions 23 and 22, and are provided in the cart body 12. The roller 28 at the front end is lifted by a predetermined distance by the guide 80. The guide 80 of this embodiment is formed of a plate material that protrudes laterally from the cart body 12. While the retracted state of the arms 21 and 20 is maintained, the state in which the roller 28 provided at the tip portion is lifted from the placement surface 4 is maintained.

  FIG. 5 is an enlarged plan view showing a state where the tire clamping arms 21 and 20 of the tire clamping device 10 are closed. As shown in the figure, the nut members 41 and 40 are moved in the front-rear direction M in the reverse direction by rotating the screw shafts 31 and 30 by the drive unit 35 (FIG. 1) from the state of FIG. As a result, the slide members 53 and 52 engaged with the nut members 41 and 40 are moved in the reverse direction along the rail member 54. By the movement of the slide members 53 and 52, the base end portions 23 and 22 are rotated in the reverse direction by the link mechanism 60. Then, when the arms 21 and 20 lifted by the guide 80 at a predetermined distance are rotated to the side and separated from the guide 80, the roller at the distal end is rotated by the hinge mechanism 29 provided in the vicinity of the base end portions 23 and 22. 28 is in contact with the mounting surface 4 and is rotated by about 90 degrees in that state to be closed. At this time, as shown in FIG. 3, the tire TF (TR) is sandwiched and lifted from the placement surface 4. In this state, the vertical load applied when the tire is sandwiched can be appropriately dispersed and held by the roller 28 and the hinge mechanism 29 at the tip. Therefore, the rigidity of the support portion 14 of the carriage main body 12 provided with the tire clamping arms 21 and 20 and the support shaft 24 can be suppressed, and the structure of the tire clamping device 10 can be simplified.

  6A to 6C are drawings showing different examples of the guide 80. FIG. FIG. 6A shows the guide 80 shown in FIGS. A guide 80 protrudes from the cart body 12 toward the left and right sides. The guide 80 is provided at a predetermined height position from the placement surface 4, and when the cylindrical body 27 comes into contact with the guide 80 when the arms 20 and 21 are stored, the tip portion is lifted upward by the hinge mechanism 29. In the state held by the guide 80, the roller 28 (FIG. 1) at the tip end is lifted at a predetermined distance from the placement surface 4 and floats.

  FIG. 6B is a drawing showing another example of the guide. The guide 81 in this example is provided with a concave receiving portion 82 in the holding portion of the arms 20 and 21. By providing the concave receiving portion 82 in this way, the arms 20 and 21 can be easily held in place by the receiving portion 82 when the arms 20 and 21 are stored. Further, even when the arms 20 and 21 bounce up and down during movement, the arms 20 and 21 can be stably held in place. Further, the guide 81 is formed with a tapered portion 83 at an end portion with which the arms 20 and 21 come into contact with each other during storage. By providing the taper portion 83, the arms 20 and 21 can be smoothly climbed.

  FIG. 6C is a drawing showing still another example of the guide. The guide of this example is provided with a lower guide 84 and an upper guide 85. Further, the lower guide 84 is formed with a taper portion 86 at an end portion with which the arms 20 and 21 come into contact when stored. By providing the taper portion 86, the arms 20, 21 can be smoothly climbed up. Further, by providing the upper guide 85, the arms 20 and 21 can be prevented from jumping up when the carriage 11 is traveling, and can be held at a fixed position.

  The guides 80, 81, 84, and 85 are not limited to these forms, and may be appropriate guides that combine them according to use conditions. The form of the guides is limited to the above example. It is not something.

  As described above, according to the tire clamping device 10, the rollers provided at the distal ends of the arms 20, 21 are provided by the hinge mechanism 29 provided in the vicinity of the base ends 22, 23 of the tire clamping arms 20, 21. In the state where the tires TF, TR are sandwiched and lifted, the state 28 is always in a state of being in contact with the mounting surface 4 stably.

  Therefore, the vertical load applied to the arms 20 and 21 from the tires TF and TR can be appropriately dispersed and held by the rotatable roller 28 at the distal end and the base end portions 22 and 23 of the arms 20 and 21. Thus, the tires TF and TR can be stably sandwiched and conveyed without increasing the rigidity of the support portions 14 of the main body 20 and 21 and the carriage main body 12. Therefore, the tire clamping device 10 can be made light and inexpensive to reduce the device cost.

  When the arms 20 and 21 of the tire clamping device 10 are opened and stored, the roller 28 at the tip is lifted from the placement surface 4 by a predetermined distance by the guides 80 (81 and 84) and held in a floating state. Therefore, when the carriage 11 is moved, it is possible to run the roller 28 (arms 20, 21) stored so that the running direction and the axis coincide with each other without contacting the mounting surface 4.

  Therefore, according to the tire clamping device 10, the support portion of the tire clamping arms 20, 21 is the hinge mechanism 29, and the guides 80, 81, which float so that the tip ends of the tire clamping arms 20, 21 are lifted during storage. By providing 84, the rigidity of the configuration relating to the tire clamping arms 20 and 21 can be lowered. As a result, the tire clamping arms 20 and 21 can be reduced in weight, and the tire clamping device 10 can be made inexpensive. Moreover, at the time of movement, the tire clamping arms 20 and 21 can be appropriately moved between the transporter 3 and the storage unit 2 without causing running resistance.

  In the above-described embodiment, the tire clamping arms 20 and 21 having the large-diameter roller 28 coaxially with the arm shaft 26 at the distal end portion have been described as an example. However, the present invention can also be applied to a configuration without the roller 28. .

  In the above-described embodiment, the tire clamping arms 20 and 21 are shown as being coaxial with the arm shaft 26 and provided with the cylindrical body 27 around the arm shaft 26, but in the extending direction of the arm shaft 26. The structure which provided the cylindrical body 27 which can be rotated around a parallel rotating shaft may be sufficient, and these may be another structure. For example, the arms 20 and 21 may be in the form of a strip having a rectangular cross section. And you may make it provide a small diameter rolling element (cylinder) on both surfaces (the tire clamping side and the guide contact side) or one side of the arms 20 and 21. Further, the small-diameter roller 28 may be disposed so as not to be coaxial with the arms 20 and 21, and the lower end of the roller 28 may be disposed below the lower ends of the arms 20 and 21. In other words, at least the contact surface of the roller 28 only needs to be positioned below the lower ends of the tire clamping arms 20 and 21. The roller 28 may be a plurality of two or more. Thus, the configuration of the tire clamping arms 20 and 21 can be variously changed and is not limited to the above embodiment.

  Next, based on FIGS. 7-10, the usage example of the motor vehicle conveying apparatus 1 provided with the said tire clamping apparatus 10 is demonstrated. In these drawings, an example in which the front tire TF and the rear tire TR of the automobile V are lifted and conveyed by the two sets of the automobile conveyance device 1 will be described. The tire clamping device 10 will be described with reference to only the tire clamping arms 20 and 21.

  As shown in FIGS. 7 and 8, the transporter 3 on which the automobile transport device 1 is placed is moved to the front of the automobile V stored in the storage unit 2 and stopped. In the vehicle conveyance device 1 in this state, the arms 20 and 21 are open in the front-rear direction M so that they do not protrude from the width direction of the carriage 11. In addition, since the tips of the arms 20 and 21 are floated by a predetermined distance, stable movement can be achieved.

  Then, as shown in FIG. 9, the vehicle transport device 1 is moved from the transporter 3 between the left and right wheels of the front tire TF and the rear tire TR of the vehicle V located in the storage unit 2. In this state, the pair of arms 20 and 21 are rotated in the horizontal direction. As a result, the pair of first arm 20 and second arm 21 sandwich the left and right tires TF, TR from the front and rear, and rotate (close) both arms 20, 21 to a predetermined position. The tires TF and TR are held by the second arm 21 in a state where the tires TF and TR are lifted from the placement surface 4 of the storage unit 2 (state shown in FIG. 2). At this time, as shown in FIG. 3, the vertical load can be appropriately distributed and held by the roller 28 and the hinge mechanism 29 at the tip.

  Thereafter, as shown in FIG. 10, the automobile transport device 1 is moved in the direction of the transporter 3. As a result, the vehicle V, in which the tires TF and TR are floated from the placement surface 4 by the first arm 20 and the second arm 21, is moved to the upper portion of the transporter 3 integrally with the vehicle transport device 1. The vehicle V placed on the transporter 3 in this way is moved to a desired location by the transporter 3. For example, when it is moved to the loading / unloading port, the vehicle transporting device 1 moves from the transporter 3 to the loading / unloading port, so that the vehicle that is sandwiched between the first arm 20 and the second arm 21 of the vehicle transporting device 1. V is also moved to the entrance / exit (not shown).

  Then, the front ends of the pair of arms 20 and 21 are rotated in a predetermined position in the opening direction (the state shown in FIG. 1), and the tires TF and TR are placed on the placement surface, and the transfer of the automobile V is completed. The rotation of the first arm 20 and the second arm 21 to a predetermined position is detected by detecting the position of the slide member 53 with the sensor 70. Thereafter, the automobile transport apparatus 1 that has been transferred is placed on the transporter 3 and moved to a desired position. In addition, this motor vehicle conveyance apparatus 1 can be utilized in well-known mechanical parking equipment other than a plane reciprocation type.

  As described above, according to the vehicle conveyance device 1 provided with the tire clamping device 10, the traveling resistance is small when the vehicle V moves without clamping the tires TF and TR, and in the state where the tires TF and TR are clamped. The vertical load can be conveyed while being properly dispersed and held by the roller 28 and the hinge mechanism 29 at the tip.

  In the above-described embodiment, the tire clamping device 10 that opens and closes the arms 20 and 21 using the screw shafts 30 and 31 and the nut members 40 and 41 and the linear motion guides 50 and 51 has been described as an example. The present invention can be similarly applied to a tire clamping apparatus having a configuration in which 50 and 51 are not provided and an opening / closing mechanism using a gear mechanism. The arm drive mechanism of the tire clamping device is not limited to the above embodiment.

  Moreover, the above-described embodiment shows an example, and various modifications can be made without departing from the gist of the present invention, and the present invention is not limited to the above-described embodiment.

  The tire clamping apparatus according to the present invention can be used for an automobile inspection apparatus, a conveyance apparatus used for production, maintenance, storage and the like of an automobile in addition to the automobile conveyance apparatus.

1 Car carrier
DESCRIPTION OF SYMBOLS 4 Mounting surface 10 Tire clamping apparatus 11 Bogie 14 Support part 16 Wheel 17 Wheel bracket 20 Tire clamping arm (1st arm)
21 Tire clamping arm (second arm)
22 Base end (first base end)
22a Support bracket 23 Base end (second base end)
23a support bracket 24 support shaft 26 arm shaft 26a base 26b pin 27 cylinder 28 roller 29 hinge mechanism 30 screw shaft (first screw shaft)
31 Screw shaft (second screw shaft)
35 Drive unit 40 Nut member (first nut member)
41 Nut member (second nut member)
50 Linear guide (First linear guide)
51 Linear guide (Second linear guide)
52 Slide member (first slide member)
53 Slide member (second slide member)
60 Link mechanism 70, 71 Sensor 80, 81 Guide 82 Receiving part 83 Tapered part 84 Lower guide 85 Upper guide 86 Tapered part
M Longitudinal direction TF Front tire TR Rear tire
V car

Claims (7)

A tire clamping device that is provided on a carriage that moves a mounting surface, and that clamps a tire from the front and rear directions with a pair of tire clamping arms that rotate sideways from the carriage,
The tire clamping arm is supported by a support shaft provided on the carriage, and a base end portion that rotatably supports the tire clamping arm in a horizontal direction, and the tire clamping arm in the vertical direction in the vicinity of the base end portion. And a hinge mechanism that swingably supports
A tire clamping device, wherein the cart includes a guide that floats the tire clamping arm from a mounting surface when the arm is retracted so that the pair of tire clamping arms rotate in the horizontal direction relative to the cart. The tire clamping arm has an arm shaft supported by the hinge mechanism, and a cylindrical body provided rotatably around a rotation axis parallel to the extending direction of the arm shaft,
The tire clamping device according to claim 1, wherein the guide is configured to support the cylindrical body from below and to float a tire clamping arm. The tire clamping arm is rotatable at a distal end thereof about a rotation axis parallel to the extending direction of the tire clamping arm, and at least when the grounding surface is positioned below the lower end of the tire clamping arm. Having a roller in contact with the mounting surface;
The tire clamping device according to claim 1 or 2, wherein the guide is configured to support an intermediate portion of the tire clamping arm from below and to float the roller from the mounting surface.   The tire clamping device according to any one of claims 1 to 3, wherein the guide has a tapered portion at an end portion that abuts when the tire clamping arm is retracted.   The tire clamping device according to any one of claims 1 to 4, wherein the guide has a concave receiving portion in a holding portion of the tire clamping arm.   The tire clamping device according to any one of claims 1 to 5, wherein the guide further includes an upper guide above the stored tire clamping arm. An automobile transport device provided with the tire clamping device according to any one of claims 1 to 6 at left and right positions of a carriage,
The carriage has traveling means movable in the front-rear direction of the automobile, and is configured to be movable between the left and right wheels of the front tire of the automobile or between the left and right wheels of the rear tire by the traveling means. A car transport device characterized.

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