WO2014024242A1 - タイヤ保持装置 - Google Patents
タイヤ保持装置 Download PDFInfo
- Publication number
- WO2014024242A1 WO2014024242A1 PCT/JP2012/069966 JP2012069966W WO2014024242A1 WO 2014024242 A1 WO2014024242 A1 WO 2014024242A1 JP 2012069966 W JP2012069966 W JP 2012069966W WO 2014024242 A1 WO2014024242 A1 WO 2014024242A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rim
- tire
- holding device
- piston
- main body
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C25/00—Apparatus or tools adapted for mounting, removing or inspecting tyres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
- G01M17/021—Tyre supporting devices, e.g. chucks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
Definitions
- the present invention relates to a tire holding device for attaching a tire to perform a test or molding.
- the tire holding device various test devices such as a tire uniformity measuring device that measures tire uniformity and a tire balance measuring device that measures tire balance are known.
- the rim assembly for fixing the tire to be tested is replaced for each type of tire according to the bead diameter and bead width.
- test rim is tested in a state where it is clamped to the holding device main body by various methods such as bolt fastening and magnets.
- the present invention provides a tire holding device capable of clamping a rim while having a simple structure.
- a tire holding device includes an annular rim that is detachably attached, a main body portion that has a support surface that supports the rim, and is supported by the support surface from the inside of the main body portion.
- An inflation gas supply section for supplying inflation gas to the inside of the tire supported by the rim, and an inflation gas passage that communicates with a central portion of the rim; and attached to the main body section.
- a clamp part that clamps the rim on the support surface of the main body part using the pressure of the inflation gas flowing through the inflation channel as a driving force.
- the rim can be clamped by using the inflation gas for inflating the tire. That is, the main body portion is driven by the clamp portion with the pressure of the inflation gas as the driving force without additionally installing a driving source for generating a driving force for clamping separately or a conduit for circulating a working fluid that transmits the driving force.
- the rim can be clamped to the support surface.
- the drive source, pipe line, and the like are not additionally provided in the rotation system, so that the rim can be clamped easily and reliably.
- the main body portion in the first aspect includes a rotating body that includes the support surface and rotates about a central axis, and the rotating body is rotatable.
- the clamp part may be attached to the rotating body.
- the inflation gas is provided even if the inflation passage for circulating the inflation gas is provided from the support portion that rotatably supports the rotation body to the rotation body.
- the rim can be clamped to the support surface by the clamp portion using the pressure of the above as a driving force. That is, since it is not necessary to additionally install a conduit for flowing the working fluid that transmits the driving force between the support portion and the rotating body, the rim can be easily and reliably clamped.
- the clamp part in the first aspect and the second aspect is attached to the main body part and driven by the inflation gas
- a hook that is attached to the piston presses the rim against the support surface in accordance with the operation of the piston, and clamps the rim to the support surface, and connects the piston and the inflation channel.
- the piston is operated by the inflation gas flowing through the inflation passage through the driving conduit, and the rim can be clamped to the support surface by the hook.
- the inflation gas is released from the tire, that is, when the inflation of the tire is not performed, or even if the pressure of the inflation gas in the inflation flow path is reduced, it is provided in the drive pipeline. It is possible to prevent the inflation gas from flowing backward from the piston to the inflation flow path by the check valve, and the clamp is weakened or released by the hook.
- the clamp portion according to the third aspect is an opening that opens the inside of the piston so that the inflation gas filled in the piston can be discharged. May be provided.
- the clamp by the hook By discharging the inflation gas filled in the piston through such an opening, the clamp by the hook can be released from the state in which the clamp by the hook is maintained by the check valve. For this reason, it is possible to easily remove the rim when the rim is exchanged. Moreover, the timing which cancels
- the opening part in the fourth aspect may include an opening valve and a driving part for driving the opening valve.
- this drive part may be arrange
- the hook in the third to fifth aspects may be attached to a central portion in a direction orthogonal to the operation direction of the piston.
- the hook according to the third to sixth aspects has a roller at a position where the rim is pressed, and the roller is attached to the rim on the support surface. It may be rotatable around a direction orthogonal to the direction in which it is pressed.
- Such a roller allows the hook to operate more smoothly with the rim, leading to improved reliability.
- the rim can be clamped with a simple structure.
- FIG. 1 It is explanatory drawing of the tire holding device of 1st embodiment of this invention. It is sectional drawing explaining the state of the rim assembly attached to the lower spindle of the tire holding device. It is a principal part enlarged view by the side of the pin in FIG. It is a principal part enlarged view by the side of the stand in FIG. It is a top view of the lower rim of the tire holding device. It is a bottom view of the upper rim of the tire holding device. It is a bottom view for demonstrating the engagement state of the pin and pin receiving part of the tire holding device. It is a top view for demonstrating the state by which the pin of a lower rim has been arrange
- FIG. 9 is a cross-sectional view taken along a cutting line A1-A1 in FIG. It is a top view for demonstrating the state by which the protrusion part was arrange
- FIG. 11 is a cross-sectional view taken along line A2-A2 in FIG.
- FIG. 11 is a cross-sectional view taken along section line A3-A3 in FIG.
- FIG. 11 is a cross-sectional view taken along section line A4-A4 in FIG. It is sectional drawing for demonstrating the state which lifted the upper rim
- FIG. 1 It is sectional drawing when the engaging mechanism of the tire holding device will be in a standby state. It is a perspective view of the taper sleeve built in the lower spindle. It is sectional drawing when the same engagement mechanism will be in an engagement state. It is sectional drawing explaining the state which removed the connection adapter from the rim elevator of the tire holding device. It is a front view of the fixing mechanism of the tire holding device, and shows a released state. It is a front view of the fixing mechanism of the tire holding device, and is a view showing a state in which the transition is made from the released state to the stiff state. It is a front view of the fixing mechanism of the tire holding device, and shows a fixed state. FIG.
- 16 is a cross-sectional view taken along section line A5-A5 in FIG. It is a figure explaining the operation
- the tire holding device 1 is described as a tire uniformity measuring device which is a kind of tire testing device.
- the tire holding device 1 includes a rim assembly 10 to which a tire T to be measured is attached, and the rim assembly 10 is detachable, and the attached rim assembly 10 is moved around its axis.
- a main body unit (main body portion) 60 that rotates and performs measurement and a rim replacement unit 130 that replaces the rim assembly 10 attached to the main body unit 60 are provided.
- the tire holding device 1 also includes a fixing mechanism (clamping portion) 64 that clamps the rim assembly to the main body unit 60.
- the tire holding device 1 includes various types of rim assemblies 10 having different outer diameters depending on the type of tire T to be measured.
- rim assembly 10 includes a lower rim (rim) 20 and an upper rim 40. Both the rims 20 and 40 are engaged with each other in a state where the first reference surface S1 set on the lower rim 20 and the second reference surface S2 set on the upper rim 40 face each other. Can be released.
- the lower rim 20 has a main body 21 formed in a substantially cylindrical shape, and a flange 22 provided on the outer peripheral surface of one end 21a of the main body 21, and has an annular shape as a whole.
- the first reference surface S ⁇ b> 1 is set to the main surface 22 a on the side away from the other end 21 b of the main body 21 in the flange portion 22.
- the main body 21 has a lower through hole 23 extending so as to be orthogonal to the first reference plane S1.
- the rim-side inclined surface 23a is formed in the shape of the side surface of the truncated cone.
- a second collar 24 is provided on the outer peripheral surface of the end 21 b of the main body 21.
- a positioning hole 24b is formed in the main surface 24a of the second flange 24 on the side away from the flange 22.
- a pin 27 and a stand 28 are erected on the main surface 22a of the flange portion 22.
- the three pins 27 and the three stands 28 are alternately arranged around the axis C1, and the three pins 27 and the three stands 28 are arranged at equal angles around the axis C1. .
- the pin 27 is formed in a substantially cylindrical shape, and a groove portion 29 is formed on the distal end side (upper side) in the standing direction of the pin 27 over the entire circumference of the outer peripheral surface.
- the side surface 29a on the distal end side and the side surface 29b on the proximal end side of the groove portion 29 are formed so as to be parallel to the main surface 22a.
- a tip end side of the groove portion 29 in the pin 27 is a tapered projection portion 30 whose diameter is reduced toward the tip end.
- the stand 28 is formed in a columnar shape as shown in FIGS.
- the front end surface 28a of the stand 28 is provided with a substantially hemispherical projection 28b protruding from the front end surface 28a.
- the tire T to be measured is attached to the edge side from the portion where the pin 27 and the stand 28 are provided on the main surface 22a of the flange portion 22.
- the upper rim 40 has a main body 41 formed in a substantially cylindrical shape, and a flange 42 provided on the outer peripheral surface of one end 41 a of the main body 41.
- the second reference surface S2 is set to the main surface 42a on the side away from the other end 41b of the main body 41 in the collar portion 42.
- the main body 41 is formed with an upper through hole 43 extending so as to be orthogonal to the second reference plane S2.
- a pin receiving portion 46 and a stand receiving portion 47 are provided on the main surface 42 a of the flange portion 42.
- three pin receiving portions 46 and three stand receiving portions 47 are alternately arranged around the axis C2 of the upper rim 40, and the three pin receiving portions 46 and the three stand receiving portions 47 are respectively They are arranged at equal angles around the axis C2.
- the pin receiving portion 46 is formed with an insertion opening 48 and a slide opening 49.
- the insertion opening 48 and the slide opening 49 communicate with each other.
- the insertion opening 48 allows the protrusion 30 of the pin 27 to enter and exit.
- the slide opening 49 is formed on one side of the insertion opening 48 and opens along the circumferential direction of the upper rim 40.
- the width of the sliding opening 49 is narrower than the outer diameter of the protrusion 30 of the pin 27 and wider than the outer diameter of the groove 29.
- the slide opening 49 is arranged on the side that is counterclockwise with respect to the insertion opening 48.
- the pin receiving portion 46 includes a pair of wall portions 50 erected so as to face each other from the main surface 42 a, and the tip ends of the wall portions 50 facing each other at the tip portions of the respective wall portions 50. And a protruding portion 51 provided so as to extend to the portion side.
- the above-described sliding opening 49 is formed by the gap between the protrusions 51 extending so as to approach each other.
- Each wall portion 50 extends along the circumferential direction of the upper rim 40, and the interval between the wall portions 50 is wider than the outer diameter of the protruding portion 30 of the pin 27.
- the distance from the main surface 42 a to the protrusion 51 is longer than the length of the protrusion 30.
- the thickness dimension of the protruding portion 51 is set to be shorter than the distance between the side surfaces 29a and 29b of the groove portion 29, and when the protruding portion 51 is disposed in the groove portion 29, the protruding portion 51 extends from any of the side surfaces 29a and 29b. Are also configured to be separated from each other.
- a concave groove 51a having a concave shape capable of accommodating the protruding portion 30 of the pin 27 is formed on the surface of the protruding portion 51 on the side away from the main surface 42a.
- the stand receiving portion 47 is formed in an arc shape in the bottom view along the circumferential direction of the upper rim 40, in other words, extending around the axis C ⁇ b> 2.
- the front end surface 47a of the stand receiving portion 47 is formed to be parallel to the main surface 42a.
- each of the front end surfaces 47a has a recess 54 that can be engaged with the protrusion 28b of the stand 28 when the front end surface 28a of the stand 28 comes into contact with the front end surface 47a.
- a guide recess 55 is formed.
- the recess 54 is provided at a position facing the protrusion 28 b of the stand 28 when the protrusion 51 is disposed in the groove 29.
- the guide recess 55 is formed around the axis C ⁇ b> 2 in plan view from a position facing the protrusion 28 b when the protrusion 30 of the pin 27 is inserted into the insertion opening 48. It is formed to extend around, that is, toward the slide opening 49 that communicates with the insertion opening 48 in which the protrusion 30 is inserted.
- the protrusions 28b, the recesses 54, and the guide recesses 55 of the stand 28 are centered on the axes C1 and C2.
- the recess 54 has a shape that is recessed into a slightly larger shape than the protrusion 28b.
- the guide recess 55 has a shape in which the recess 54 extends around the axis C2.
- the recesses 54 are arranged side by side so as to be spaced apart from each other around the axis C2 on the counterclockwise side with respect to the guide recess 55.
- the tire T to be measured is attached to the edge side of the main surface 42a of the flange portion 42 from the portion where the pin receiving portion 46 and the stand receiving portion 47 are provided.
- the engaged state of the rim assembly 10 configured as described above will be described.
- the rim assembly 10 is removed from the main unit 60 and disposed on the rim replacement unit 130, the lower rim 20 is disposed on the floor or the like, and the lower rim 20 is disposed on the lower rim 20.
- An upper rim 40 engaged with 20 is disposed.
- the pin 27 and the pin receiving portion 46 are engaged as described below. At this time, the stand 28 and the stand receiving portion 47 are separated from each other. The pin 27 and the pin receiving portion 46 are brought into contact with or separated from each other depending on the engaged state.
- the upper rim 40 is disposed above the lower rim 20 so that the reference surfaces S1 and S2 face each other.
- the groove 29 of the pin 27 is disposed on the extension line L around the axis C2 with respect to the protrusion 51.
- the protrusion 28 b of the stand 28 engages with the guide recess 55 of the stand receiving portion 47.
- the lower through hole 23 of the lower rim 20 and the upper through hole 43 of the upper rim 40 communicate with each other.
- the lower rim 20 When the lower rim 20 is rotated about the axis C1 with respect to the upper rim 40 from this state, the lower rim 20 is first brought into contact with the stand receiving portion 47 as shown in FIGS.
- the protruding portion 51 of the upper rim 40 is disposed in the groove portion 29, and then the protruding portion 28b is engaged with the recessed portion 54 from the engaged state with the guiding recessed portion 55 (see FIG. 12).
- the protrusion 28 b moves over the guide recess 55 and moves to the recess 54, the upper rim 40 temporarily moves upward with respect to the lower rim 20.
- the protruding portion 51 When the stand 28 is in contact with the stand receiving portion 47, the protruding portion 51 is separated from both side surfaces 29a and 29b of the groove portion 29 (see FIG. 13).
- the stand receiving portion 47 is formed in an arc shape, either the state in which the pin 27 is inserted into the insertion opening 48 or the state in which the protrusion 51 is disposed in the groove 29 is selected.
- the stand receiving portion 47 and the stand 28 overlap in the direction of the axis C1, and the stand 28 can be brought into contact with the stand receiving portion 47.
- the rim assembly 10 when the rim assembly 10 is detached from the main body unit 60, the rims 20 and 40 are engaged with each other by the protrusion 51 being disposed in the groove 29. On the other hand, when the rim assembly 10 is attached to the main unit 60, this engagement is released and the rims 20 and 40 are fixed by the engagement mechanism 76 as will be described later.
- the main unit 60 includes a lower spindle (rotating body) 62 rotatably supported on a base (supporting portion) 61, and an elevating mechanism 63 attached to the base 61. .
- the lower spindle 62 is provided at a cylindrical portion 67 formed in a substantially cylindrical shape, and a lower end portion of the cylindrical portion 67, and from the outer peripheral surface 67 a of the cylindrical portion 67 as the distance from the cylindrical portion 67 increases.
- a taper portion 68 provided with a device-side inclined surface (support surface) 68a that expands in diameter, and a lower end portion of the taper portion 68, the outer diameter of which is larger than the taper portion 68, and the upper surface 69c of the lower rim 20 It has an enlarged diameter portion 69 that faces the second flange portion 24.
- the outer diameter of the cylindrical portion 67 can be inserted into the lower through hole 23 of the lower rim 20 and the upper through hole 43 of the upper rim 40.
- the pipe path of the cylindrical portion 67 is a large diameter portion 67b having a constant inner diameter on the lower side, and a small diameter portion 67c having an inner diameter smaller than that of the large diameter portion 67b on the upper side.
- the small diameter portion 67c is formed so that the inner diameter becomes smaller toward the upper side.
- the cylindrical portion 67 is formed with a hole 72 having an opening 72a on the outer peripheral surface 67a of the cylindrical portion 67 and communicating with the large diameter portion 67b.
- a tire hole for supplying air W between the lower rim 20 and the upper rim 40 when the rim assembly 10 is attached to the lower spindle 62 is formed. It communicates with the diameter 67b.
- the hole 72 can be used to supply lubricating oil from the outside of the lower spindle 62 into the large diameter portion 67b when the rim assembly 10 is not attached to the lower spindle 62.
- the opening 72a is provided at a position facing the inner peripheral surface of the lower rim 20.
- the apparatus-side inclined surface 68a is formed in the shape of the side surface of the truncated cone having the axis C4 of the lower spindle 62 as the central axis, and is exposed on the side opposite to the axis C4.
- the device-side inclined surface 68a faces the side opposite to the axis C4.
- the angle ⁇ 1 formed between the axis C4 and the apparatus-side inclined surface 68a is set equal to the angle ⁇ 2 formed between the axis C1 of the lower rim 20 and the rim-side inclined surface 23a.
- the enlarged diameter portion 69 is formed with a vent hole (inflation channel) 69a communicating with the large diameter portion 67b.
- the vent hole 69a is connected to an air supply source (inflation gas supply part) 73 inside the enlarged diameter part 69, and the compressed air (inflation gas) W is compressed into the large diameter part 67b through the vent hole 69a. Can be supplied.
- the air W supplied into the large diameter portion 67b is discharged to the outside through the tire hole (not shown).
- a positioning convex portion 69b that engages with the positioning hole portion 24b is formed on the upper surface of the enlarged diameter portion 69.
- FIG. 15 A state in which the lower rim 20 is attached to the lower spindle 62 configured as described above will be described.
- the lower through hole 23 of the lower rim 20 is inserted into the lower spindle 62, and the lower rim 20 is lowered while adjusting the direction of the lower rim 20 around the axis C1.
- the positioning hole 24b is engaged with the positioning convex portion 69b and the rim side inclined surface 23a of the lower rim 20 is brought into contact with the apparatus side inclined surface 68a of the lower spindle 62, the rim side inclined surface 23a is brought into contact with the apparatus side inclined surface 68a. Makes surface contact.
- a minute gap E1 is formed between the outer peripheral surface 67a of the cylindrical portion 67 and the inner peripheral surface of the lower through hole 23, and the second flange 24 is separated from the enlarged diameter portion 69. That is, the lower rim 20 is mainly supported by the apparatus-side inclined surface 68 a and is prevented from being inclined by the cylindrical portion 67.
- the lower spindle 62 incorporates a known engagement mechanism 76 described in, for example, Japanese Patent No. 3040514. More specifically, the engagement mechanism 76 includes a tapered sleeve 77 and a hook operation rod 78 connected to the tapered sleeve 77 as main components.
- the taper sleeve 77 has a main body 79 formed in a substantially truncated cone shape, and a flange portion 80 provided on the outer peripheral surface of the lower end of the main body 79.
- a through hole 79a is formed in the main body 79 in the axial direction.
- the side wall 79b of the main body 79 is formed with a plurality of slits 79c that penetrate the side wall 79b in the thickness direction and extend along the axis of the main body 79.
- the tapered sleeve 77 configured as described above receives the force compressed in the radial direction, whereby the width of the slit 79c is narrowed, and the inner diameter of the through hole 79a can be reduced.
- the hook operation rod 78 includes a cylindrical portion 83 formed in a bottomed cylindrical shape, and a shaft-shaped member 84 that is fixed to the bottom surface of the cylindrical portion 83 and extends downward.
- An annular groove 83 a that engages with the flange portion 80 of the taper sleeve 77 is formed at the upper end of the inner peripheral surface of the cylindrical portion 83.
- the cylindrical portion 83 is formed with a pair of long holes 83b penetrating through the wall portion and having a major axis in the vertical direction.
- a cylinder (not shown) or the like is connected to the lower end side of the shaft-like member 84, and the hook operation rod 78 can be moved up and down.
- a pair of hooks 87 are disposed in the cylindrical portion 83 so as to face each other with the axis C4 interposed therebetween. Both ends of the pin 88 serving as a fulcrum of the hook 87 are fixed to the lower spindle 62 through the long hole 83 b of the cylindrical portion 83.
- a spring 89 is connected to the lower end portion of each hook 87 and urges the lower end portions of the hooks 87 to approach each other.
- An engaging claw 87a is projected from the axis C4 side of the upper end portion of the hook 87.
- the engaging mechanism 76 configured in this way has an outer peripheral surface of the tapered sleeve 77 in a natural state and a small diameter of the cylindrical portion 67. A slight gap is formed between the portion 67c. Further, the upper end portion of the hook 87 enters the notch 83c formed on the inner peripheral surface of the cylindrical portion 83 by being biased by the spring 89, and the distance between the engaging claws 87a is outside the upper rim shaft 112 described later. It is separated from the diameter.
- the lower spindle 62 is supported on the base 61 by a bearing (not shown).
- the lower spindle 62 can be rotated around the axis C4 by the servo motor 90 shown in FIG.
- a rim elevator 95 is attached to a frame 93 fixed to the base 61 via a ball screw 94.
- the rim elevator 95 can be moved up and down by a ball screw 94.
- the rim elevator 95 includes a positioning portion 96 and a chuck portion 97 as shown in FIG.
- the positioning portion 96 is configured by fixing a substantially disc-shaped positioning member 102 to the lower end of the rod 101 inserted through a through hole 100a formed in the support plate 100 and a support member 103 to the upper end.
- a second device-side inclined surface 102a that increases in diameter as it goes downward is formed.
- the second device-side inclined surface 102 a is formed in the shape of the side surface of the truncated cone, and is exposed on the axis C ⁇ b> 6 side of the positioning member 102.
- the second apparatus-side inclined surface 102a faces the axis C6 side.
- the springs 104 inserted by the rod 101 are respectively locked to the lower surface of the support plate 100 and the upper surface of the positioning member 102, and the support plate 100 and the positioning member 102 are separated from each other regardless of the distance between the support plate 100 and the positioning member 102. A force to try to generate is generated.
- the outer diameter of the support member 103 is larger than the outer diameter of the through hole 100 a, and the support member 103 is locked to the upper surface of the support plate 100.
- a pair of gripping members 107 that are slidable in a direction parallel to the horizontal plane are attached to the air cylinder 106.
- the positioning portion 96 and the chuck portion 97 described above can be attached to and detached from the connection adapter 110 attached to the upper rim 40.
- the connection adapter 110 includes an adapter main body 111 that is detachably attached to the upper rim 40 with a bolt (not shown) and the like, and an upper rim shaft 112 that is fixed to the lower portion of the adapter main body 111.
- the adapter main body 111 and the upper rim shaft 112 may be integrally formed, or may be joined after being formed separately.
- the second rim side inclined surface 111a is formed on the upper part of the adapter body 111.
- the second rim-side inclined surface 111a is formed in the shape of the side surface of the truncated cone, and is exposed on the side opposite to the axis C7 of the connection adapter 110.
- the second rim-side inclined surface 111a faces the side opposite to the axis C7 side.
- the angle ⁇ 4 formed by the axis C6 and the second apparatus-side inclined surface 102a is set equal to the angle ⁇ 5 formed by the axis C7 and the second rim-side inclined surface 111a.
- an engaging groove 111b for engaging the grip member 107 is formed on the outer peripheral surface of the adapter main body 111.
- an engagement recess 112a that engages with the engagement claw 87a is formed.
- connection adapter 110 When the connection adapter 110 is attached to the rim elevator 95 configured as described above, the procedure is as follows. In advance, the space between the pair of gripping members 107 is widened by the air cylinder 106.
- the adapter main body 111 is inserted into the positioning member 102, and the second rim side inclined surface 111a is brought into contact with the second apparatus side inclined surface 102a.
- the gripping member 107 is engaged with the engagement groove 111 b of the adapter main body 111 in a state where the connection adapter 110 is moved toward the support plate 100 against the biasing force of the spring 104. Since the connection adapter 110 is engaged by the grip member 107 that is positioned and adjusted so as to maintain the relative center, the connection adapter 110 is centered in the direction of the axis C7 of the connection adapter 110 and the direction parallel to the horizontal plane. Further, the second rim-side inclined surface 111a is biased downward by the second device-side inclined surface 102a, so that the connection adapter 110 is reliably positioned in a direction parallel to the horizontal plane perpendicular to the axis C7.
- a plurality of fixing mechanisms 64 are provided on the lower spindle 62, and clamp the lower rim 20 to the apparatus-side inclined surface 68a.
- the enlarged-diameter portion 69 of the lower spindle 62 has an enlarged-diameter flange portion 70 formed to have a large diameter so as to protrude outward in the radial direction of the axis C4 below the second flange portion 24 of the lower rim 20. have.
- Each fixing mechanism 64 is attached to the piston 140 provided on the upper surface 70 a of the enlarged-diameter flange portion 70, the driving pipeline 141 connecting the piston 140 and the vent hole 69 a of the enlarged-diameter portion 69, and the piston 140. And a hook 142 provided so as to be rotatable about one axis orthogonal to the axis C4.
- the fixing mechanism 64 includes a check valve 145 that is provided in the driving pipeline 141 and prevents the backflow of the air W from the piston 140 to the vent hole 69a.
- the piston 140 includes a cylindrical cylinder 150 and a piston main body 160 that is accommodated in the cylinder 150.
- the cylinder 150 is installed on the upper surface 70a of the enlarged-diameter flange portion 70 so that its own center line C8 faces the same direction as the axis C4. Further, the partition plate 151 is provided so as to partition the inside of the cylinder 150 vertically, so that the inside is divided into an upper space A1 and a lower space A2.
- a through-hole 151b that penetrates vertically at the center of the axis of the cylinder 150 is formed. Further, on the lower surface 151 d of the partition plate 151, an annular recess 151 a that is recessed upward in the circumferential direction of the cylinder 150 is formed at a position in contact with the inner peripheral surface 150 a of the cylinder 150.
- the cylinder 150 is formed with a communication hole 151c that opens toward the annular recess 151a and communicates the lower space A2 and the outside of the cylinder 150.
- the cylinder 150 has a guide pin support portion 152 that protrudes upward at the upper end portion.
- the guide pin support portion 152 has a uniaxial direction perpendicular to the axis C4 (the piston 140 shown in FIGS. 19A, 19B, and 19C). Then, a guide pin 155 extending in the depth direction of the drawing is attached.
- the piston main body 160 is provided inside the cylinder 150. Further, the piston main body 160 connects the upper main body 161 disposed in the upper space A1, the lower main body 165 disposed in the lower space A2, the upper main body 161 and the lower main body 165, and the cylinder 150. And a connecting portion 166 inserted through the through-hole 151b.
- the upper main body 161 has a columnar shape whose outer diameter is substantially the same as the inner diameter of the cylinder 150, and can move up and down while sliding with the inner peripheral surface 150a of the cylinder 150.
- a spring 167 is inserted into the spring insertion portion 161a, and one end of the spring 167 is attached to the upper end surface 161a1 of the spring insertion portion 161a, and the other end is attached to the upper surface 151e of the partition plate 151.
- the urging force is applied in the direction in which the upper body 161 is pushed upward.
- the spring constant of the spring 167 is generated in the piston 140 when it can be pushed upward against the weight of the piston body 160 as a whole and against the resistance of the cylinder 150 during sliding, and when air W is supplied. The value is compressed by the applied force.
- the upper body 161 has a hook support pin 162 attached to extend in the same direction as the extending direction of the guide pin 155 of the cylinder 150 therein. More specifically, the upper main body 161 is formed with a hook groove 161b that is recessed from the upper surface 161d to a lower middle position (above the spring insertion portion 161a) at a position that is radially outward of the axis C4.
- the hook support pin 162 is disposed in the hook groove 161b. That is, the hook support pin 162 is disposed at a position on the outer side in the radial direction of the axis C4 that is separated from the axis C4 in the upper main body 161.
- the shape of the bottom surface 161b1 of the hook groove 161b is downward from the upper surface 161d when viewed from the extending direction of the hook support pin 162 in this embodiment (the depth direction in FIGS. 19A, 19B, and 19C). As it goes, it is a curved surface that inclines smoothly from the inside in the radial direction of the axis C4 to the outside. This prevents the hook 142 from interfering with the upper body 161 when the hook 142 is attached to the hook support pin 162 to operate.
- the shape of the hook groove 161b is not limited to the case of this embodiment.
- the bottom surface 161b1 of the hook groove portion 161b may not be inclined, and the hook groove portion 161b may have a rectangular groove shape that is recessed downward from the upper surface 161d.
- the lower body 165 has a columnar shape whose outer diameter is substantially the same as the inner diameter of the cylinder 150, and can move up and down while sliding between the inner circumferential surface 150a of the cylinder 150. ing.
- the connecting portion 166 has a columnar shape whose outer diameter is substantially the same as the inner diameter of the through hole 151b of the cylinder 150 so that no gas flows in and out between the upper space A1 and the lower space A2. And the lower main body 165 are connected, and the upper main body 161 and the lower main body 165 can be moved up and down integrally.
- the hook 142 is disposed in the hook groove 161b, is attached to the hook support pin 162 of the piston 140 at the lower portion, and is supported so as to be rotatable about the hook support pin 162.
- the shape of the lower portion of the hook 142 is such that when the hook 142 is attached to the hook support pin by the hook groove portion 161b and operates, it does not interfere with the bottom surface 161b1 of the hook groove portion 161b. It has a curved shape.
- a guide hole 143 through which the guide pin 155 of the cylinder 150 is inserted is formed in the upper part of the hook 142.
- the guide hole 143 has a dimension in the vertical direction and the width direction orthogonal to the extending direction of the guide pin 155 substantially the same as the diameter of the guide pin 155 in a state where the hook 142 rotates and rises straight in the vertical direction.
- the first long hole 143a extending in the vertical direction, and the width direction dimension is made substantially the same as the diameter of the guide pin 155 continuously to the first long hole 143a.
- the second long hole 143b is inclined and extends toward the C4 direction.
- the hook 142 has an engaging portion 144 that protrudes toward the axis C4 at the upper end portion. In a fixed state described later, the engaging portion 144 is attached to the second flange portion 24 of the lower rim 20. Engage.
- the driving pipeline 141 in each fixing mechanism 64 is divided into an annular channel 141a formed around the axis C4 inside the enlarged diameter portion 69 and the annular channel 141a. And a branch channel 141 b connected to the piston 140. In this way, the cylinder 150 and the vent hole 69a are connected, and the compressed air W from the vent hole 69a can be introduced into the communication hole 151c of the cylinder 150.
- Each branch flow path 141b has an exhaust flow path 141b1 that extends and opens toward the outside of the piston 140, and an opening portion is provided with a closing member (opening portion) 139 to close the exhaust flow path 141b1. is doing.
- the check valve 145 is provided in the middle of each drive pipe 141, and prevents backflow when the air W from the vent hole 69a is introduced into the cylinder 150.
- FIG. 19A the compressed air W from the vent hole 69a is first introduced into the lower space A2 of the cylinder 150 through the annular recess 151a.
- the lower body 165 of the piston body 160 is in contact with the lower surface 151 d of the partition plate 151 of the cylinder 150.
- the guide pin 155 is located in the second long hole 143b in the guide hole 143.
- the introduction amount of the air W is increased, and the lower main body 165 is pushed down, whereby the upper main body 161 is also pushed down.
- the guide pin 155 is guided in the guide hole 143 to the connection portion between the second long hole 143b and the first long hole 143a while rotating around the hook support pin 162.
- the engaging portion 144 of the hook 142 gradually approaches the second flange portion 24 of the lower rim 20.
- the introduction amount of the air W is further increased, the upper main body 161 is pushed downward, the guide pin 155 is guided upward in the first long hole 143a, and the hook 142 is As a result, the engaging portion 144 is finally engaged with the second flange portion 24. In this way, the fixing mechanism 64 is in a fixed state.
- a load wheel 124 is arranged on the rail 123 in the base 61.
- the road wheel 124 can approach the lower spindle 62 or move away from the lower spindle 62 by traveling on the rail 123.
- the swivel base 131 can travel on the rail 132 and can approach the lower spindle 62 or be separated from the lower spindle 62.
- a swivel shaft 133 is provided on the swivel base 131.
- a plurality of stocker frames 134 are connected to the turning shaft 133, and the turning shaft 133 rotates the stocker frame 134 around the axis of the turning shaft 133.
- the turning shaft 133 can move the rim assembly 10 disposed on the rim pedestal 135 of the stocker frame 134 closer to or away from the lower spindle 62.
- a positioning projection 69b (see FIG. 23) is formed on each stocker frame 134, and the phase around the axis C1 of the rim assembly 10 arranged on the stocker frame 134 is positioned.
- each rim 20, 40 is separated and the lower rim 20 is attached to the lower spindle 62 and fixed to the upper rim 40.
- a description will be given from a state in which the adapter 110 is attached to the rim elevator 95 and moves upward.
- the engagement mechanism 76 in the lower spindle 62 is in a standby state
- the fixing mechanism 64 is in a released state
- the load wheel 124 and the swivel 131 are in a state of being separated from the lower spindle 62.
- the rim elevator 95 is lowered to move the upper rim 40 downward, and the upper rim 40 is overlaid on the lower rim 20.
- the phase relationship between the rims 20 and 40 at this time is as shown in FIGS. 8 and 9, and the protrusion 28 b is engaged with the guide recess 55 in a state where the stand receiving portion 47 is in contact with the stand 28. . Further, the protrusion 30 of the pin 27 is inserted into the insertion opening 48.
- the engagement mechanism 76 is in a standby state, so that the engagement claw 87 a of the hook 87 does not engage with the engagement recess 112 a of the upper rim shaft 112.
- the servo motor 90 rotates the lower rim 20 together with the lower spindle 62 counterclockwise around the axis C1.
- the phase relationship between the rims 20 and 40 at this time is as shown in FIGS. That is, the protrusions 51 of the upper rim 40 are disposed in the groove 29 of the pin 27 while the stand 28 is in contact with the stand receiver 47 by the rotation of the lower rim 20, and the pin receiver 46 and the pin 27 are engaged. Then, the lower rim 20 and the upper rim 40 are integrated. The protrusion 28 b engages with the recess 54.
- the rim elevator 95 is raised, and the rim assembly 10 in which the rims 20, 40 are integrated is moved upward.
- the pin receiving portion 46 of the upper rim 40 supports the pin 27, and the lower rim 20 is suspended from the upper rim 40.
- the rim replacement unit 130 is moved closer to the lower spindle 62. At this time, the stocker frame 134 in which the rim assembly 10 is not disposed is disposed below the rim assembly 10 supported by the rim elevator 95.
- the rim elevator 95 is lowered, and the rim assembly 10 to which the connection adapter 110 is attached is arranged on the rim base 135 on the stocker frame 134.
- the positioning hole 24b of the lower rim 20 is engaged with the positioning convex portion 69b protruding on the stocker frame 134.
- the stand receiving portion 47 comes into contact with the stand 28, and the lower rim 20 supports the upper rim 40.
- the pin 27 and the pin receiving portion 46 do not interfere with each other, the pin 27 does not support the load of the upper rim 40, and damage to the pin 27 can be prevented.
- the pair of gripping members 107 supporting the connection adapter 110 are moved away from each other, and the rim elevator 95 is moved.
- the rim assembly 10 is removed.
- the rim elevator 95 is raised and separated from the rim replacement unit 130.
- the stocker frame 134 is rotated around the axis of the pivot shaft 133, and the rim assembly 10 is of a type different from the rim assembly 10 attached to the main unit 60 until now. Is positioned below the rim elevator 95.
- the rim elevator 95 is lowered and the gripping member 107 is moved so as to sandwich the engagement groove 111b of the adapter main body 111.
- the gripping members 107 are brought close to each other, and the gripping members 107 are engaged with the engagement grooves 111b.
- the lower rim 20 and the upper rim 40 of the rim assembly 10 are engaged with each other.
- the rim elevator 95 engaged with the rim assembly 10 is raised.
- the rim replacement unit 130 is separated from the lower spindle 62, and the stocker frame 134 of the rim replacement unit 130 is retracted from above the lower spindle 62.
- the rim elevator 95 is lowered and the rim assembly 10 is attached to the lower spindle 62.
- the lower spindle 62 is inserted into the lower through hole 23 of the lower rim 20 and the upper through hole 43 of the upper rim 40.
- the gap between the lower through hole 23 and the lower spindle 62 is small.
- the lower spindle 62 cannot be smoothly inserted into the lower through hole 23.
- by pushing the upper rim 40 downward with the rim elevator 95 the stand 28 of the lower rim 20 is pushed downward with the stand receiving portion 47 of the upper rim 40, and the lower spindle 62 is inserted into the lower through hole 23. Let me insert it.
- dust or the like may adhere to the outer peripheral surface 67a of the lower spindle 62 or the apparatus-side inclined surface 68a after the rim assembly 10 is removed.
- the air W is supplied from the air supply source 73 and discharged from the hole 72 in a state where the inner peripheral surface of the lower through-hole 23 is opposed to the opening 72a, so that the air W as shown by the arrow Z1. To blow down the dust.
- the rim elevator 95 is lowered to bring the rim-side inclined surface 23a of the lower rim 20 into contact with the apparatus-side inclined surface 68a of the lower spindle 62, and the apparatus-side inclined surface 68a makes the rim assembly. 10 is supported.
- the rims 20 and 40 are prevented from being inclined with respect to the axis C4 of the lower spindle 62.
- the lower spindle 62 is rotated clockwise around the axis C4 in plan view, and the lower rim 20 is rotated with respect to the upper rim 40.
- the phase relationship between the upper rim 40 and the lower rim 20 is as shown in FIGS. That is, the protrusion 30 of the pin 27 reaches the insertion opening 48 by the clockwise rotation of the lower rim 20.
- the engagement between the pin receiving portion 46 and the pin 27 can be released. That is, by raising the rim elevator 95, the pin 27 is separated from the pin receiving portion 46, and the rim assembly 10 can be separated into the lower rim 20 and the upper rim 40 as shown in FIG.
- the hook operating rod 78 When the hook operating rod 78 is moved upward, the inner diameter of the through hole 79a of the taper sleeve 77 is reduced, and the upper part of the upper rim shaft 112 is fixed to the lower spindle 62 via the taper sleeve 77.
- the engaging claw 87a of the hook 87 engages with the engaging recess 112a.
- the upper rim shaft 112 is fixed to the lower spindle 62 by changing the engagement mechanism 76 from the standby state to the engagement state. Thereby, the lower spindle 62, the rim assembly 10, and the connection adapter 110 are integrated.
- the air W is supplied from the air supply source 73 and discharged from a tire hole (not shown), thereby causing the air W in the tire T to reach a predetermined pressure and the tires T to the rims 20 and 40.
- the tire T is pressed against the flange portion 22 of the lower rim 20 and the flange portion 42 of the upper rim 40 due to the pressure of the air W, and at the same time, the lower rim 20 is also pressed against the apparatus-side inclined surface 68a.
- the air W when the air W is supplied from the air supply source 73, the air W also flows into the fixing mechanism 64 to operate the hook 122, and the fixing mechanism 64 is in a fixed state (solid line in FIG. 17) as described above.
- the lower rim 20 is clamped to the apparatus-side inclined surface 68a.
- the rotation of the lower spindle 62 is stopped.
- the tire T is exchanged for the next test. Specifically, first, the supply of the air W to the tire T by the air supply source 73 is stopped, and the air W in the tire T is depressurized. Thereafter, the tire T is removed from the rim assembly 10, and a new tire T to be tested next is attached. At this time, since the fixing mechanism 64 has the check valve 145, even if the pressure of the air W in the vent hole 69a decreases, the air W in the cylinder 150 flows backward and flows into the vent hole 69a. Thus, the clamp of the lower rim 20 by the hook 142 is not released.
- the closing member 139 (see FIG. 20) is opened to discharge the air W from the cylinder 150, and as shown in FIG. 29, the hook 142 is operated as described above to release the fixing mechanism 64 (see FIG. 29).
- the lower rim 20 is opened from above the apparatus-side inclined surface 68a. Thereby, the rim assembly 10 composed of the lower rim 20 and the upper rim 40 can be replaced.
- the air supply source 73 that supplies the air W to the tire T at the time of measurement can be used as it is to introduce the air W into the fixing mechanism 64.
- the fixing mechanism 64 can reliably clamp the lower rim 20 being measured.
- the air supply source 73 and the vent hole 69a originally installed in the rotating system there is no need to newly install a facility for operating the fixing mechanism 64 in the rotating system. Further, since the air W is also supplied to the fixing mechanism 64 according to the supply of the air W to the tire T, the lower rim 20 can be reliably clamped during the measurement.
- the tire holding device 1 of the present embodiment can maintain the fixed state of the fixing mechanism 64 even after measurement, and can open the closing member 139 as necessary to release the state. It is possible to easily remove the tire T after measurement.
- the clamping of the lower rim 20 can be automated with a simple configuration without providing special equipment, and the efficiency of exchanging the rim assembly 10 for measuring various tires T can be improved.
- the tire holding device 201 according to the second embodiment of the present invention will be described. Constituent elements common to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
- the fixing mechanism 204 is different from that of the first embodiment.
- each fixing mechanism 204 includes a piston 210 provided on the upper surface 70a of the enlarged-diameter flange portion 70, a drive pipe 141, and a piston 210 as in the first embodiment. And a check valve 145 provided with a hook 213 that is pivotable about one axis orthogonal to the axis C4.
- the piston 210 has a cylindrical cylinder 150 and a piston body 211 accommodated in the cylinder 150.
- the piston main body 211 includes an upper main body 212 disposed in the upper space A1, a lower main body 165 disposed in the lower space A2, and a connecting portion 166 that connects the upper main body 212 and the lower main body 165. Yes.
- the upper body 212 has substantially the same configuration as the upper body 161 of the first embodiment, but the arrangement position of the hook support pins 214 in the hook groove 161b is different. Specifically, the hook support pin 214 is disposed so that the center axis of the hook support pin 214 passes through the center axis of the piston body 211 (center line C8 of the cylinder 150), that is, the radial direction of the axis C4 (the operation direction of the piston 210). The hook support pin 214 is attached to the central position of the upper body 212 in the direction orthogonal to the upper body 212.
- the hook 213 is attached to the hook support pin 214 at the lower portion, and has an engaging portion 224 that protrudes toward the axis C4 at the upper end portion.
- the engaging portion 224 is engaged with the second flange portion 24 of the lower rim 20.
- the engaging portion 224 includes an engaging portion roller 225 that can rotate about the same direction as the extending direction of the guide pin 155 and the hook support pin 214.
- the joint roller 225 comes into contact with the second flange 24.
- the fixing mechanism 204 repeats the fixed state and the released state.
- the bending moment of the hook support pin 214 generated by the vertical movement of the piston body 211 can be suppressed.
- the force from the piston body 211 to the hook 213 can be efficiently transmitted, the bending stress of the hook support pin 214 can be reduced, and durability can be improved.
- the fixing mechanism 204 cannot shift from the fixed state to the released state even if the air W is discharged from the cylinder 150. There is a risk that.
- the transition state shown in FIGS. 30A, 30B, and 30C is caused by the discharge of the air W from the cylinder 150.
- the hook 213 is automatically rotated in the direction away from the axis C4 while the engaging portion roller 225 rotates.
- the fixing mechanism 204 can be surely released, and the reliability of the rim assembly 10 can be improved while improving the efficiency of the replacement operation of the rim assembly 10 with a simple configuration.
- the fixing mechanism 304 includes an opening mechanism (opening portion) 305 for discharging the air W inside the cylinder 150 in addition to the fixing mechanism 64 (204) of the first embodiment or the second embodiment.
- the opening mechanism 305 includes an opening button 306 provided in the exhaust flow path 141 b 1, an actuator (drive unit) 307 that operates the opening button 306, and an electromagnetic that introduces air W into the actuator 307. And a valve (open valve) 308.
- the exhaust passage 141b1 is opened, and the air W can be discharged to the outside. That is, in the present embodiment, instead of providing the above-described closing member 139 in the exhaust flow path 141b1, this open button 306 is provided.
- the actuator 307 has a piston 307a that can be operated linearly by hydraulic pressure or pneumatic pressure.
- a rod 307b is attached to the piston 307a so as to be directed in the direction in which the release button 306 is pressed.
- the release button 306 can be pressed.
- the electromagnetic valve 308 is a valve device that introduces and stops introduction of the medium (air or oil) W1 from the working medium supply unit 310 provided outside the tire holding device 301 to the actuator 307.
- the electromagnetic valve 308 may be operated by being manually powered, or a controller that electrically detects the end of measurement and supplies power to the electromagnetic valve 308 may be used.
- the release timing of the fixing mechanism 304 can be selected at the operator's discretion. Furthermore, such work can be performed automatically, and work efficiency can be improved.
- the air W when the air W is supplied between the rims 20 and 40 by the air supply source 73 when the tire T is mounted between the rims 20 and 40,
- the rim-side inclined surface 23a is pressed against the apparatus-side inclined surface 68a by a force that separates the rims 20, 40 from each other.
- the frictional force between the device-side inclined surface 68a and the rim-side inclined surface 23a is increased, and the lower rim 20 is reliably supported on the device-side inclined surface 68a.
- the device-side inclined surface 68a and the rim-side inclined surface 23a are not necessarily provided. That is, it is possible to clamp the lower rim 20 using the upper surface 69c of the enlarged diameter portion 69 as a support surface.
- the fixing mechanisms 64, 204, and 304 are described as fixing the lower rim 20, but the fixing mechanisms 64, 204, and 304 can be installed to fix the upper rim 40, and the lower rim 20 can be installed. Both the rim 20 and the upper rim 40 may be fixed.
- the tire holding devices 1, 201 and 301 are tire uniformity measuring devices.
- the present invention is not limited to this, and other testing devices such as a tire balance measuring device may be used. Further, the present invention can be applied to other tire holding devices such as a post-cure inflator for cooling and molding the vulcanized tire T.
- the present invention relates to a tire holding device for attaching a tire to perform a test or molding.
- a rim clamp can be clamped with a simple structure by adopting a fixing mechanism (clamp portion) that uses air (inflation gas) pressure as a driving force. is there.
- Rim elevator 96 Positioning part 97 ... Chuck part 100 ... Support plate 100a ... Through hole 101 ... Rod 102 ... Positioning member 102a ... Second device side inclined surface 103 ... Support Member 104 ... Spring 106 ... Air cylinder 107 ... Gripping member 110 ... Connection adapter 111 ... Adapter body 111a ... Second rim side inclined surface 111b ... Engagement groove 112 ... Upper rim shaft 112a ... Engagement recess 123 ... Rail 124 ... Load Wheel 130 ... Rim exchange unit 131 ... Swivel base 132 ... Rail 133 ... Swivel axis 134 ... Stocker frame 135 ... Rim base 139 ...
- Closure member (opening part) 140 Piston 141 ... Driving pipe 141a ... Annular flow path 141b ... Branching channel 141b1 ... Exhaust channel 142 ... Hook 143 ... Guide hole 143a ... First long hole 143b ... Second long hole 144 ... Engagement part 145 ...
- Check valve 150 Cylinder 150a ... Inner peripheral surface 151 ... Partition Plate 151a ... annular recess 151b ... through hole 151c ... communication hole 151d ... lower surface 151e ... upper surface 152 ... guide pin support portion 155 ... guide pin 160 ... piston body 161 ... upper body 161a ... spring insertion portion 161a1 ... upper surface 161b ...
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Balance (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Manipulator (AREA)
- Tyre Moulding (AREA)
Abstract
Description
図1に示すように、タイヤ保持装置1は、測定対象であるタイヤTが取り付けられるリム組立体10と、リム組立体10が着脱可能とされ、装着されたリム組立体10をその軸線周りに回転させ測定を行う本体ユニット(本体部)60と、本体ユニット60に装着されたリム組立体10を交換するためのリム交換ユニット130とを備えている。
また、このタイヤ保持装置1は、リム組立体を本体ユニット60にクランプする固定機構(クランプ部)64を備えている。
図2に示すように、リム組立体10は、下リム(リム)20および上リム40を有している。両リム20、40は、下リム20に設定される第一の基準面S1と上リム40に設定される第二の基準面S2とを対向させた状態で互いに係合させたり、この係合を解除させたりすることができる。
本体21には、第一の基準面S1に直交するように延びる下貫通孔23が形成されている。下貫通孔23における端部21bの内周面には、端部21aから離間するにしたがって拡径するリム側傾斜面23aが形成されている。リム側傾斜面23aは、円錐台の側面の形状に形成されている。
測定対象であるタイヤTは、鍔部22の主面22aにおけるピン27やスタンド28が設けられた部分より縁部側に取り付けられるようになっている。
本体41には、第二の基準面S2に直交するように延びる上貫通孔43が形成されている。
スライド用開口部49は、挿入用開口部48の一側に形成され、上リム40の周方向に沿って開口している。スライド用開口部49の幅は、ピン27の突起部30の外径よりも狭く、溝部29の外径よりも広い。
リム組立体10が本体ユニット60から取り外されてリム交換ユニット130上に配置されているときなどには、床などの上に下リム20が配置されるとともに、この下リム20の上に下リム20に係合した上リム40が配置される。
後述するように、装置側傾斜面68aにリム側傾斜面23aを当接させたときに、開口72aは下リム20の内周面に対向する位置に設けられている。
円筒部83内には、一対のフック87が軸線C4を挟んで対向するように配置されている。フック87の支点となるピン88の両端は、円筒部83の長孔83bを通して下部スピンドル62に固定されている。
フック87の上端部の軸線C4側には、係合爪87aが突設されている。
リムエレベータ95は、図18に示すように、位置決め部96およびチャック部97を有している。
接続アダプタ110は、不図示のボルトなどで上リム40に着脱可能に取り付けられるアダプタ本体111と、アダプタ本体111の下部に固定された上リムシャフト112とを有している。アダプタ本体111および上リムシャフト112は、一体に形成されてもよいし、別々に形成された後で接合されてもよい。
接続アダプタ110は、相対中心を保つように位置決め調整された把持部材107により係合されるため、接続アダプタ110の軸線C7方向および水平面に平行な方向に芯出しされている。さらに、第二のリム側傾斜面111aが第二の装置側傾斜面102aにより下方に付勢されることで、接続アダプタ110が軸線C7に直交する水平面に平行な方向により確実に位置決めされる。
固定機構64は、図1、図15、図17、図19A、図19B、図19C、図20に示すように、下部スピンドル62に複数設けられ、下リム20を装置側傾斜面68aにクランプする。
ここで、下部スピンドル62における拡径部69は、下リム20の第二の鍔部24の下方で、軸線C4の径方向外側に突出するように大径に形成された拡径部フランジ部70を有している。
より詳細には、上部本体161には、軸線C4の径方向外側となる位置で上面161dから下方の中途位置(バネ挿入部161aの上方)まで凹むフック用溝部161bが形成されている。そしてこのフック用溝部161b内にフック支持ピン162が配置されており、すなわち、フック支持ピン162は、上部本体161において、軸線C4から離間する軸線C4の径方向外側の位置に配置されている。
このガイド孔143は、フック142が回動して上下方向に真っ直ぐ立ち上がった状態で、上下方向及びガイドピン155の延在方向に直交する幅方向の寸法が、ガイドピン155の直径と略同径とされるとともに上下方向に延びる第一長孔143aと、この第一長孔143aに連続して上記幅方向の寸法がガイドピン155の直径と略同径とされるとともに、下方に向かうに従って軸線C4方向に向かって傾斜して延びる第二長孔143bとによって構成されている。
図19Aに示すように、まず通気孔69aからの圧縮された空気Wをシリンダ150の下部空間A2に環状凹部151aを介して導入される。この状態では、シリンダ150の仕切り板151の下面151dにピストン本体160の下部本体165が接触している。また、ガイドピン155はガイド孔143における第二長孔143b内に位置している。
このとき、リム組立体10の下リム20と上リム40は、互いに係合した状態である。
タイヤ保持装置1が図1に示すようになっている状態から、図17に示すように下リム20の鍔部22上にタイヤTを配置する。リムエレベータ95を所定のタイヤ計測用のリム幅まで下降させる。このとき、係合機構76のテーパースリーブ77の透孔79a内、および一対のフック87の間に上リムシャフト112が挿入される。
一方、タイヤTの内径や幅が異なるなどにより別の種類のリム組立体10に交換する場合には、下リム20のクランプを解除する必要がある。すなわち、閉塞部材139(図20参照)を開放してシリンダ150から空気Wを排出し、図29に示すように、上述のようにフック142を動作させて固定機構64を解除状態(図29の実線)として、装置側傾斜面68a上から下リム20を開放する。これにより、下リム20及び上リム40から構成されるリム組立体10を交換することができる。
第一実施形態と共通の構成要素には同一の符号を付して詳細説明を省略する。
本実施形態では、固定機構204が、第一実施形態のものと異なっている。
第一実施形態および第二実施形態と共通の構成要素には同一の符号を付して詳細説明を省略する。
本実施形態では、固定機構304が、第一実施形態および第二実施形態のものと異なっている。
Claims (7)
- 着脱可能に取り付けられた環状のリムと、
前記リムを支持する支持面を有する本体部と、
前記本体部の内部から前記支持面に支持された前記リムの中心部へと通じるインフレート用流路を有し、前記リムに支持された前記タイヤの内部にインフレート用ガスを供給するインフレート用ガス供給部と、
前記本体部に取り付けられ、前記インフレート用流路を流通する前記インフレート用ガスの圧力を駆動力として、前記本体部の支持面に前記リムをクランプするクランプ部とを備えるタイヤ保持装置。 - 前記本体部は、前記支持面を具備して中心軸回りに回転する回転体と、
該回転体を回転可能に支持する支持部とを有し、
前記クランプ部が前記回転体に取付けられている請求項1に記載のタイヤ保持装置。 - 前記クランプ部は、
前記本体部に取り付けられて前記インフレート用ガスで駆動するピストンと、
前記ピストンに取り付けられて、該ピストンの動作に応じて前記支持面に前記リムを押し付けて前記支持面に前記リムをクランプするフックと、
前記ピストンと前記インフレート用流路とを接続する駆動用管路と、
前記駆動用管路に設けられて、前記ピストンから前記インフレート用流路へのインフレート用ガスの逆流を防止する逆止弁とを備える請求項1又は2に記載のタイヤ保持装置。 - 前記クランプ部は、
前記ピストンに充填された前記インフレート用ガスを排出可能に、前記ピストン内部を開放する開放部を備える請求項3に記載のタイヤ保持装置。 - 前記開放部は、開放弁と、
前記開放弁を駆動させる駆動部とを有する請求項4に記載のタイヤ保持装置。 - 前記フックは、前記ピストンの動作方向に直交する方向の中央部に取り付けられている請求項3から5のいずれか一項に記載のタイヤ保持装置。
- 前記フックは、前記リムを押し付ける位置にローラを有し、該ローラは、前記支持面に前記リムを押し付ける方向に直交する方向を中心として回転可能である請求項3から6のいずれか一項に記載のタイヤ保持装置。
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JP2014529170A JP5783585B2 (ja) | 2012-08-06 | 2012-08-06 | タイヤ保持装置 |
KR1020147028333A KR101659198B1 (ko) | 2012-08-06 | 2012-08-06 | 타이어 지지장치 |
PCT/JP2012/069966 WO2014024242A1 (ja) | 2012-08-06 | 2012-08-06 | タイヤ保持装置 |
US14/387,458 US9321315B2 (en) | 2012-08-06 | 2012-08-06 | Tire holding apparatus |
IN8609DEN2014 IN2014DN08609A (ja) | 2012-08-06 | 2012-08-06 | |
DE112012005866.6T DE112012005866B4 (de) | 2012-08-06 | 2012-08-06 | Reifenhaltevorrichtung |
CN201280071858.6A CN104220244B (zh) | 2012-08-06 | 2012-08-06 | 轮胎保持装置 |
TW102116539A TWI545031B (zh) | 2012-08-06 | 2013-05-09 | 輪胎保持裝置 |
Applications Claiming Priority (1)
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PCT/JP2012/069966 WO2014024242A1 (ja) | 2012-08-06 | 2012-08-06 | タイヤ保持装置 |
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US (1) | US9321315B2 (ja) |
JP (1) | JP5783585B2 (ja) |
KR (1) | KR101659198B1 (ja) |
CN (1) | CN104220244B (ja) |
DE (1) | DE112012005866B4 (ja) |
IN (1) | IN2014DN08609A (ja) |
TW (1) | TWI545031B (ja) |
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JP2017181090A (ja) * | 2016-03-28 | 2017-10-05 | 株式会社長浜製作所 | タイヤ保持装置 |
CN111301356A (zh) * | 2020-03-22 | 2020-06-19 | 张思凡 | 一种伸缩式充气轮胎防爆装置 |
WO2020203362A1 (ja) * | 2019-03-29 | 2020-10-08 | 株式会社神戸製鋼所 | リム交換装置およびこれを備えたタイヤ試験装置 |
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TWI545031B (zh) | 2016-08-11 |
DE112012005866T5 (de) | 2014-12-04 |
KR20140138891A (ko) | 2014-12-04 |
US20150047790A1 (en) | 2015-02-19 |
JPWO2014024242A1 (ja) | 2016-07-21 |
US9321315B2 (en) | 2016-04-26 |
CN104220244B (zh) | 2016-10-05 |
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JP5783585B2 (ja) | 2015-09-24 |
DE112012005866B4 (de) | 2022-05-12 |
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