JP2015205409A - tire printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tire printer capable of executing highly accurate printing to a tire with no wheel attached as compared to conventional ones.SOLUTION: A tire printer 10 comprises: a tire placement part 30 for placing a tire 93 thereon in a state in which a pair of side face portions 93a of the tire 93 is arranged vertically in a vertical direction indicated by an arrow 10a; a DD motor 29 for rotating the tire placement part 30 in order to rotate the tire 93 placed on the tire placement part 30 in a circumferential direction of the tire 93; and an ink jet head 53 for executing printing to the upper side of the upper side face portion 93a of the pair of side face portions 93a when the tire 93 is placed on the tire placement part 30. In the tire placement part 30, the tire 93 is placed thereon by supporting the lower side face portion 93a of the pair of side face portions 93a from below.

Description

  The present invention relates to a tire printer that performs printing on a tire.

  As a conventional tire printer, a wheel support portion that supports a wheel attached to the tire, and a tire that rotates the wheel support portion in order to rotate the tire supported by the wheel support portion via the wheel in the circumferential direction of the tire There is known a tire printer that includes a rotating portion and an inkjet head that performs printing on a side surface portion of the tire when the tire is supported by a wheel support portion via a wheel (see, for example, Patent Document 1). .)

  Further, as a conventional tire printer, a tire placement portion on which a tire is placed in a state where a pair of side surface portions of the tire are vertically arranged in a vertical direction, and a tire placed on the tire placement portion are tired A tire rotating portion that rotates the tire mounting portion in order to rotate in the circumferential direction of the tire, and when the tire is mounted on the tire mounting portion, printing is performed on the upper side portion of the upper side portion of the pair of side surface portions of the tire There is also known a tire printer including an inkjet head that performs the above (see, for example, Patent Document 2). The tire placement portion of the tire printer places the tire by supporting the upper side surface portion from the lower side of the pair of side surface portions of the tire.

JP 2012-101392 A JP 2010-125440 A

  However, since the tire printer described in Patent Document 1 performs printing only on a tire to which a wheel is attached, there is a problem that printing cannot be performed on a tire to which no wheel is attached.

  On the other hand, the tire printer described in Patent Document 2 can execute printing on a tire to which no wheel is attached. However, the tire printer described in Patent Literature 2 supports the upper side surface portion from the lower side of the pair of side surface portions of the tire in a state where the pair of side surface portions of the tire are arranged vertically in the vertical direction. The upper side surface portion of the pair of side surface portions of the tire, that is, the portion to be printed by the inkjet head may be deformed by the weight of the tire. Therefore, the tire printer described in Patent Document 2 has a problem that it is difficult to perform high-precision printing on the tire.

  Therefore, an object of the present invention is to provide a tire printer capable of executing printing with higher accuracy than before in a tire to which a wheel is not attached.

  The tire printer according to the present invention includes a tire placement portion on which the tire is placed in a state where a pair of side surface portions of the tire are vertically arranged in the vertical direction, and the tire placed on the tire placement portion. A tire rotating portion that rotates the tire placement portion to rotate the tire placement portion in the circumferential direction of the tire, and an upper side surface of the pair of side surface portions when the tire is placed on the tire placement portion An inkjet head that performs printing on the upper side of the portion, and the tire placement portion supports the lower side surface portion of the pair of side surface portions from the lower side to place the tire. It is characterized by that.

  With this configuration, the tire printer of the present invention supports the lower side surface portion from the lower side of the pair of side surface portions of the tire in a state where the pair of side surface portions of the tire are vertically arranged in the vertical direction. It is possible to suppress the upper side surface portion of the pair of side surface portions of the tire, that is, the portion to be printed by the ink jet head, from being deformed by the weight of the tire. Therefore, the tire printer of the present invention can execute printing with higher accuracy than before on a tire to which no wheel is attached.

  Further, in the tire printer of the present invention, the tire placement portion includes a plurality of tire support portions that support the lower side surface portion from the lower side, and a direction orthogonal to the rotation axis of the tire by the tire rotation portion. A tire positioning portion for positioning the tire, and each of the plurality of tire support portions may support the tire positioning portion.

  With this configuration, the tire printer of the present invention includes a tire support portion in a direction orthogonal to the tire rotation axis by the tire rotation portion, and a tire positioning portion as compared with a configuration in which the tire positioning portion is not supported by the tire support portion. The positional accuracy between the plurality of tire support portions and the tire positioned by the tire positioning portion can be improved in the direction orthogonal to the tire rotation axis by the tire rotating portion. it can. Therefore, the tire printer of the present invention can stably support the tire by the plurality of tire support portions. Therefore, the tire printer of the present invention can execute high-precision printing on a tire to which no wheel is attached.

  Moreover, the tire printer of this invention WHEREIN: The said tire positioning part may position the said tire in the direction orthogonal to the said rotating shaft by contacting the inner peripheral part of the said tire.

  With this configuration, the tire printer according to the present invention has a distance between the tire rotation axis and the tire positioning portion by the tire rotating portion, as compared with the configuration in which the tire positioning portion contacts the outer peripheral portion of the tire to position the tire. Therefore, in the direction orthogonal to the tire rotation axis by the tire rotation portion, the amount of positional deviation between the tire central axis positioned by the plurality of tire positioning portions and the tire rotation axis by the tire rotation portion is reduced. can do. Therefore, the tire printer of the present invention can execute high-precision printing on a tire when a tire to which a wheel is not attached is rotated by a tire rotating unit and printing is performed by an inkjet head.

  Further, in the tire printer of the present invention, the tire placement portion includes three tire support portions as the plurality of tire support portions, and the tire support portions extend in a radial direction of the tire. The three tire support portions may be arranged at equal intervals on the same circumference around the rotation axis.

  With this configuration, the tire printer of the present invention has the lower side surface portion of the pair of side surface portions of the tire arranged at equal intervals on the same circumference around the rotation axis of the tire by the tire rotation portion. Since the tire is supported by the three tire support portions, the tire can be stably supported as compared with the configuration in which the entire lower side surface portion of the pair of side surface portions is supported by the flat surface. Therefore, the tire printer of the present invention can execute high-precision printing on a tire to which no wheel is attached.

  Moreover, the tire printer of this invention WHEREIN: The said tire mounting part may be provided with the link mechanism which moves the said tire positioning part currently supported by each of the said three tire support parts simultaneously in the said radial direction.

  With this configuration, when the tire positioning portion is moved in the tire radial direction, the tire printer of the present invention has three tire positioning portions on the same circumference around the tire rotation axis by the tire rotating portion. Are maintained at equal intervals by the link mechanism, so that the tire is placed on the tire placement portion as compared with the configuration in which each of the three tire positioning portions is independently moved in the radial direction of the tire. The position to be performed can be determined with high accuracy. Therefore, the tire printer of the present invention can execute high-precision printing on a tire to which no wheel is attached.

  In the tire printer of the present invention, the tire placement portion includes three tire support portions that support the lower side surface portion from the lower side, and the three tire support portions are the tire rotation portions. May be arranged at equal intervals on the same circumference around the rotation axis of the tire.

  With this configuration, the tire printer of the present invention has the lower side surface portion of the pair of side surface portions of the tire arranged at equal intervals on the same circumference around the rotation axis of the tire by the tire rotation portion. Since the tire is supported by the three tire support portions, the tire can be stably supported as compared with the configuration in which the entire lower side surface portion of the pair of side surface portions is supported by the flat surface. Therefore, the tire printer of the present invention can execute high-precision printing on a tire to which no wheel is attached.

  Further, in the tire printer of the present invention, the tire placement portion includes three tire positioning portions that position the tire in a direction perpendicular to the rotation axis of the tire by the tire rotating portion, and the three tire positioning portions. A link mechanism that simultaneously moves the three tire positioning portions in the radial direction of the tire while being arranged at equal intervals on the same circumference around the rotation axis may be provided.

  With this configuration, when the tire positioning portion is moved in the tire radial direction, the tire printer of the present invention has three tire positioning portions on the same circumference around the tire rotation axis by the tire rotating portion. Are maintained at equal intervals by the link mechanism, so that the tire is placed on the tire placement portion as compared with the configuration in which each of the three tire positioning portions is independently moved in the radial direction of the tire. The position to be performed can be determined with high accuracy. Therefore, the tire printer of the present invention can execute high-precision printing on a tire to which no wheel is attached.

  Further, the tire printer of the present invention includes a wheel support portion that supports a wheel attached to the tire in a state where a pair of side surface portions of the tire are vertically arranged in the vertical direction, and the tire rotating portion is The wheel support portion is rotated in order to rotate the tire supported by the wheel support portion via the wheel in the circumferential direction of the tire, and the inkjet head is configured such that the tire passes through the wheel. When supported by the wheel support portion, printing may be performed on the upper side surface portion.

  With this configuration, the tire printer according to the present invention can perform printing on a tire with a wheel attached thereto by attaching a wheel support portion to the tire rotating portion, so that only a tire with no wheel attached can be used. Rather, printing can be performed on tires with wheels attached.

  The tire printer of the present invention can perform printing with higher accuracy than before on a tire to which no wheel is attached.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external perspective view of a tire printer when a tire printer according to an embodiment of the present invention in a state where a tire to which a wheel is attached is installed is observed from the upper left toward the front. FIG. 2 is an external perspective view of the tire printer when the tire printer in the state shown in FIG. 1 is observed from the upper right side toward the front. It is a front view of the tire printer in the state shown in FIG. It is a top view of the tire printer in the state shown in FIG. It is side surface sectional drawing of the tire support apparatus in the state shown in FIG. It is a front view of the tire printer shown in FIG. 1 in the state in which the tire to which the wheel is not attached is installed. It is a top view of the tire printer in the state shown in FIG. It is side surface sectional drawing of the tire support apparatus in the state shown in FIG. It is a one part perspective view of the tire support apparatus shown in FIG. FIG. 10 is a partial front view of the tire support device shown in FIG. 9. FIG. 10 is a plan view of a part of the tire support device shown in FIG. 9. It is a block diagram of the tire printer shown in FIG. (A) is a top view of the tire printer shown in Drawing 1 in the state where a slide board was pulled out. FIG. 14B is a side view of the tire printer in the state shown in FIG. (A) is a top view of the tire printer shown in FIG. 1 in the state which is supporting the tire to which the wheel is attached and the slide plate is pulled out. FIG. 15B is a side view of the tire printer in the state shown in FIG. (A) is a top view of the tire printer shown in FIG. 1 in the state which is supporting the tire to which the wheel is not attached and the slide plate is pulled out. FIG. 16B is a side view of the tire printer in the state shown in FIG. It is a bottom view of the tire mounting part shown in Drawing 1 in the state where three stoppers approach each other. It is a bottom view of the tire mounting part shown in Drawing 16 in the state where three stoppers are separated from each other.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, the structure of the tire printer which concerns on one embodiment of this invention is demonstrated.

  FIG. 1 is an external perspective view of the tire printer 10 when the tire printer 10 according to the present embodiment in a state where a tire 91 to which a wheel 92 is attached is installed is observed from the upper left toward the front. is there. FIG. 2 is an external perspective view of the tire printer 10 when the tire printer 10 in the state shown in FIG. 1 is observed from the upper right toward the front. FIG. 3 is a front view of the tire printer 10 in the state shown in FIG. FIG. 4 is a plan view of the tire printer 10 in the state shown in FIG.

  As illustrated in FIGS. 1 to 4, the tire printer 10 includes a tire support device 20 that supports a tire such as a tire 91, and an inkjet printer 50 that is supported by the tire support device 20.

  The tire support device 20 is arranged on the upper side of the leg portion 21 in the vertical direction indicated by the arrow 10a, that is, in the vertical direction indicated by the arrow 10a, and is supported by the leg portion 21. A rectangular parallelepiped frame 22 is provided.

  FIG. 5 is a side cross-sectional view of the tire support device 20 in the state shown in FIG.

  As shown in FIGS. 1 to 5, the tire support device 20 is supported by the frame body 22 on the upper side of the frame body 22, and the vertical direction indicated by an arrow 10 a and the front-back direction indicated by an arrow 10 b orthogonal to the vertical direction. A pair of slide rails 23 that are spaced apart from each other in the left-right direction indicated by an arrow 10 c orthogonal to both, a slide plate 24 supported by the pair of slide rails 23, and a frame body 22 above the frame body 22. And a pair of shock absorbers 25 that are spaced apart from each other in the front-rear direction, and attached to the lower surface of the rear side of the slide plate 24 so as to contact the shock absorber 25 in the front-rear direction of the slide plate 24 A stop member 26 for stopping movement, a handle 27 attached to the front end of the slide plate 24 and gripped by the user, And a pin 28 which is inserted into the slide rail 23 and the slide plate 24 to fix the position in the longitudinal direction of the slide plate 24 relative to the body 22.

  The pair of slide rails 23 extend in the front-rear direction indicated by the arrow 10 b, and support the slide plate 24 with respect to the frame body 22 so as to be movable in the front-rear direction.

  The tire support device 20 includes a DD (Direct Drive) motor 29 supported by a slide plate 24, and a tire placement portion 30 that is rotatably supported by the DD motor 29 and on which a tire is placed. .

  FIG. 6 is a front view of the tire printer 10 in a state where a tire 93 to which no wheel is attached is installed. FIG. 7 is a plan view of the tire printer 10 in the state shown in FIG. FIG. 8 is a side sectional view of the tire support device 20 in the state shown in FIG. FIG. 9 is a perspective view of a part of the tire support device 20. FIG. 10 is a front view of a part of the tire support device 20. FIG. 11 is a plan view of a part of the tire support device 20.

  In the tire support device 20 shown in FIGS. 6 to 11, a shaft 41 (see FIG. 3) described later is removed from the tire placement portion 30.

  As shown in FIGS. 6 to 11, the tire placement unit 30 includes a disk 31 that is rotatably supported by the DD motor 29, three rails 32 fixed on the disk 31, and three Three stoppers 33 that are supported one by one on each of the rails 32 and fix the tire 93 are provided.

  The tire placement section 30 is a place on which the tire 93 is placed in a state where the pair of side surface portions 93a of the tire 93 are arranged vertically in the vertical direction indicated by the arrow 10a. The tire placement unit 30 is configured to place the tire 93 by supporting the lower side surface portion 93a of the pair of side surface portions 93a of the tire 93 from the lower side.

  The disc 31 is formed with a shaft fixing hole 31a for fixing the shaft 41 at the center.

  The three rails 32 are arranged at equal intervals on the same circumference centering on the rotation shaft 90 a (see FIG. 8) of the tire 93 by the DD motor 29. The rail 32 constitutes a tire support portion that supports the lower side surface portion 93a of the pair of side surface portions 93a of the tire 93 from the lower side. The rail 32 extends in the radial direction indicated by the arrow 90b (see FIG. 11) of the tire 93, and supports the stopper 33 so as to be movable in the radial direction indicated by the arrow 90b.

  The three stoppers 33 are arranged at equal intervals around the rotation axis 90 a of the tire 93. The stopper 33 is a member that fixes the tire 93 by contacting the inner peripheral portion 93b of the tire 93 in a direction away from the rotation shaft 90a of the tire 93 by the DD motor 29 in the radial direction indicated by the arrow 90b of the tire 93. In other words, the stopper 33 constitutes a tire positioning portion that positions the tire 93 in a direction orthogonal to the rotation shaft 90a. The stopper 33 is fixed to the rail 32 by tightening a screw (not shown) inserted in a through hole 33a that is open to the top.

  The DD motor 29 rotates the tire mounting portion 30 in order to rotate the tire 93 mounted on the tire mounting portion 30 in the circumferential direction indicated by an arrow 90c (see FIG. 11) of the tire 93. The tire rotation part is constituted.

  As shown in FIGS. 3 and 5, the tire support device 20 includes a shaft 41 that is attachable to and detachable from the shaft fixing hole 31 a of the disk 31 of the tire placement portion 30, and a nut 42 that is attached to the shaft 41. ing.

  The shaft 41 constitutes a wheel support portion that supports a wheel 92 attached to the tire 91.

  The nut 42 fixes the wheel 92 together with the shaft 41 by being attached to the shaft 41 in a state where the shaft 41 is inserted into the wheel 92 attached to the tire 91.

  The shaft 41 supports the tire 91 via the wheel 92 in a state where the pair of side surface portions 91a of the tire 91 are arranged vertically in the vertical direction indicated by the arrow 10a. When the tire 91 is supported by the shaft 41 via the wheel 92, the tire 91 is not placed on the tire placement unit 30.

  The DD motor 29 rotates the shaft 41 via the disk 31 in order to rotate the tire 91 supported by the shaft 41 via the wheel 92 in the circumferential direction indicated by the arrow 90 c of the tire 91.

  As shown in FIGS. 1 to 5, the tire support device 20 supports the inkjet printer 50 and is supported by the frame body 22 so as to be movable in the vertical direction indicated by the arrow 10a; A handle 44 that is rotated by a user to move the printer vertical mechanism 43 in the vertical direction, and a transmission mechanism (not shown) that moves the printer vertical mechanism 43 in the vertical direction as the handle 44 rotates are provided. .

  The pair of printer up-and-down mechanisms 43 are disposed away from each other in the left-right direction indicated by the arrow 10c with the pair of slide rails 23 sandwiched therebetween.

  As shown in FIGS. 1 to 4, 6, and 7, the inkjet printer 50 is supported by a guide rail 51 that extends in the left-right direction indicated by an arrow 10 c and a guide rail 51 that is movable in the left-right direction. A plurality of ink jet heads 53 that are mounted on the carriage 52 and eject ink droplets toward the tires, and a plurality of tanks 54 that supply ink to the ink jet heads 53.

  As shown in FIGS. 1 to 4, when the tire 91 is supported on the shaft 41 via the wheel 92, the inkjet head 53 is above the upper side surface portion 91 a of the pair of side surface portions 91 a of the tire 91. Printing is performed. Further, as shown in FIGS. 6 and 7, when the tire 93 is placed on the tire placement portion 30, the inkjet head 53 has an upper side portion 93 a of the pair of side portions 93 a of the tire 93. Printing is executed on the upper side.

  FIG. 12 is a block diagram of the tire printer 10.

  As shown in FIG. 12, the tire printer 10 is a display device such as an operation unit 61 that is an input device such as buttons for inputting various operations and a display device such as an LCD (Liquid Crystal Display) that displays various information. The guide rail 51 includes a communication unit 63 that is a communication device that communicates with an external device such as a PC 62 (Personal Computer), the DD motor 29 and the inkjet head 53, and the carriage 52 (see FIG. 1). A carriage driving device 64 for moving in the left-right direction indicated by an arrow 10c (see FIG. 1) along an arrow 10c (see FIG. 1) and an EEPROM (Electrically Erasable Programmable Read Only Memory) for storing various data. And a storage unit 65 that is a storage device such as a control unit 66 that controls the entire tire printer 10.

  The control unit 66 includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory) that stores programs and various data in advance, and a RAM (Random Access Memory) used as a work area of the CPU. ing. The CPU is configured to execute a program stored in the ROM or the storage unit 65.

  Next, a method for installing a tire on the tire printer 10 will be described.

  First, the installation method of the tire 91 to which the wheel 92 is attached will be described.

  FIG. 13A is a plan view of the tire printer 10 in a state where the slide plate 24 is pulled out. FIG. 13B is a side view of the tire printer 10 in the state shown in FIG.

  First, after the user removes the pin 28 from the slide rail 23 and the slide plate 24, the user moves the slide plate 24 forward by moving the slide plate 24 in the front-rear direction indicated by the arrow 10b. 13 is pulled out from under the ink jet printer 50 as shown in FIG. 13, and then the position of the slide plate 24 is fixed by inserting pins 28 into the slide rail 23 and the slide plate 24. Here, the user attaches the shaft 41 to the shaft fixing hole 31 a of the disc 31 when the shaft 41 is not attached to the shaft fixing hole 31 a of the disc 31.

  FIG. 14A is a plan view of the tire printer 10 in a state where the tire 91 to which the wheel 92 is attached is supported and the slide plate 24 is pulled out. FIG. 14B is a side view of the tire printer 10 in the state shown in FIG.

  After the user pulls out the slide plate 24 as shown in FIG. 13, the user attaches the wheel 92 attached to the tire 91 to the shaft 41 attached to the shaft fixing hole 31 a of the disc 31. Then, the user attaches the nut 42 to the shaft 41 to support the tire 91 via the wheel 92 by the shaft 41 as shown in FIG.

  Next, the user turns the handle 44 to the vertical position indicated by the arrow 10a of the inkjet printer 50 so that the tire 91 does not collide with the inkjet printer 50 when the slide plate 24 is placed under the inkjet printer 50. Adjust.

  Next, the user removes the pin 28 from the slide rail 23 and the slide plate 24, and then grips the handle 27 to move the slide plate 24 backward in the front-rear direction indicated by the arrow 10b. Is stored under the inkjet printer 50, and then the position of the slide plate 24 is fixed by inserting pins 28 into the slide rail 23 and the slide plate 24.

  Finally, the user adjusts the vertical position indicated by the arrow 10a of the inkjet printer 50 by turning the handle 44 so that printing can be appropriately performed on the tire 91 by the inkjet printer 50.

  As described above, the tire 91 is installed in the tire printer 10 as shown in FIGS.

  Next, the installation method of the tire 93 to which no wheel is attached will be described.

  First, after the user removes the pin 28 from the slide rail 23 and the slide plate 24, the user moves the slide plate 24 forward by moving the slide plate 24 in the front-rear direction indicated by the arrow 10b. 13 is pulled out from under the ink jet printer 50 as shown in FIG. 13, and then the position of the slide plate 24 is fixed by inserting pins 28 into the slide rail 23 and the slide plate 24. Here, when the shaft 41 is attached to the shaft fixing hole 31 a of the disc 31, the user removes the shaft 41 from the shaft fixing hole 31 a of the disc 31.

  After the user pulls out the slide plate 24 as shown in FIG. 13, the user loosens the screw inserted in the through hole 33a of the stopper 33 to release the stopper 33 from the rail 32, and the three stoppers 33 are The stopper 33 is moved along the rail 32 in the direction indicated by the arrow 90b so as to approach each other. That is, the user moves the stopper 33 on the rail 32 in the radial direction indicated by the arrow 90 b of the tire 93 in a direction approaching the rotation axis 90 a of the tire 93 by the DD motor 29.

  Next, the user places the tire 93 on the three rails 32 so that the three stoppers 33 are surrounded by the inner peripheral portion 93 b of the tire 93.

  FIG. 15A is a plan view of the tire printer 10 in a state where the tire 93 to which no wheel is attached is supported and the slide plate 24 is pulled out. FIG. 15B is a side view of the tire printer 10 in the state shown in FIG.

  The user places the tire 93 on the three rails 32 and then moves the stopper 33 on the rail 32 away from the rotation axis 90a of the tire 93 by the DD motor 29 in the radial direction indicated by the arrow 90b of the tire 93. After the three stoppers 33 are brought into contact with the inner peripheral portion 93b of the tire 93, the stoppers 33 are fixed to the rails 32 by tightening the screws inserted into the through holes 33a of the stoppers 33. Thus, as shown in FIG. 15, the tire 93 is fixed to the tire placement portion 30 by the stopper 33.

  Next, the user turns the handle 44 to the vertical position indicated by the arrow 10a of the inkjet printer 50 so that the tire 93 does not collide with the inkjet printer 50 when the slide plate 24 is placed under the inkjet printer 50. Adjust.

  Next, the user removes the pin 28 from the slide rail 23 and the slide plate 24, and then grips the handle 27 to move the slide plate 24 backward in the front-rear direction indicated by the arrow 10b. Is stored under the inkjet printer 50, and then the position of the slide plate 24 is fixed by inserting pins 28 into the slide rail 23 and the slide plate 24.

  Finally, the user adjusts the vertical position indicated by the arrow 10a of the inkjet printer 50 by turning the handle 44 so that the inkjet printer 50 can appropriately perform printing on the tire 93.

  As described above, the tire 93 is installed in the tire printer 10 as shown in FIGS. 6 and 7.

  Next, printing on a tire installed in the tire printer 10 will be described.

  When the control unit 66 of the tire printer 10 receives print data transmitted from the outside via the communication unit 63, the control unit 66 controls the DD motor 29, the inkjet head 53, and the carriage drive device 64 based on the print data. Then, printing on tires such as the tires 91 and 93 by the inkjet head 53 is executed.

  Specifically, the control unit 66 controls the carriage driving device 64 to move the carriage 52 in the left-right direction indicated by the arrow 10 c along the guide rail 51, thereby moving the inkjet head 53 mounted on the carriage 52. It is moved relative to the tire in the left-right direction indicated by the arrow 10c. At this time, the control unit 66 executes printing in the left-right direction indicated by the arrow 10c by ejecting ink droplets toward the tire by the inkjet head 53. The control unit 66 changes the printing position of the inkjet head 53 with respect to the tire by controlling the DD motor 29 and rotating the tire every time printing in the left-right direction indicated by the arrow 10c is completed. And the control part 66 performs the printing in the left-right direction shown by the arrow 10c again in a new printing position.

  As described above, the tire printer 10 is configured such that the pair of side surface portions 93a of the tire 93 is vertically arranged in the vertical direction indicated by the arrow 10a, and the lower side surface of the pair of side surface portions 93a of the tire 93 is used. Since the portion 93a is supported from the lower side, the upper side surface portion 93a of the pair of side surface portions 93a of the tire 93, that is, the portion to be printed by the inkjet head 53 is prevented from being deformed by the weight of the tire 93 as compared with the conventional case. Can do. Therefore, the tire printer 10 can execute printing with higher accuracy than before on the tire 93 to which no wheel is attached.

  The tire printer 10 improves the positional accuracy between the rail 32 and the stopper 33 in the direction orthogonal to the rotation axis 90a of the tire 93 by the DD motor 29, as compared with a configuration in which the stopper 33 is not supported by the rail 32. Therefore, the positional accuracy of the three rails 32 and the tire 93 positioned by the stopper 33 can be improved in the direction orthogonal to the rotation shaft 90a. Therefore, the tire printer 10 can stably support the tire 93 by the three rails 32. Therefore, the tire printer 10 can execute highly accurate printing on the tire 93 to which no wheel is attached.

  The tire printer 10 positions the tire 93 in a direction orthogonal to the rotation shaft 90 a when the stopper 33 contacts the inner peripheral portion of the tire 93. With this configuration, the tire printer 10 has a shorter distance between the rotation shaft 90a and the stopper 33 than the configuration in which the stopper 33 is positioned by contacting the outer peripheral portion of the tire 93. Therefore, the rotation shaft 90a In a direction orthogonal to the center axis of the tire 93 positioned by the three stoppers 33, the amount of positional deviation between the rotation shaft 90a can be reduced. Therefore, the tire printer 10 can execute high-precision printing on the tire 93 when the tire 93 to which no wheel is attached is rotated by the DD motor 29 and printing is performed by the inkjet head 53.

  In the tire printer 10, the lower side surface portion 93 a of the pair of side surface portions 93 a of the tire 93 is arranged at equal intervals on the same circumference around the rotation axis 90 a of the tire 93 by the DD motor 29. Since it is supported by the three rails 32, the tire 93 can be stably supported as compared with the configuration in which the entire lower side surface portion 93a of the pair of side surface portions 93a of the tire 93 is supported by a flat surface. Therefore, the tire printer 10 can execute highly accurate printing on the tire 93 to which no wheel is attached.

  The tire printer 10 may have a configuration in which the entire lower side surface portion 93a of the pair of side surface portions 93a of the tire 93 is supported by a flat surface.

  Since the tire printer 10 has not only a function of supporting the tire 93 as a function of the rail 32 but also a function of supporting the stopper 33 so as to be movable in the radial direction indicated by the arrow 90b of the tire 93, the tire printer 10 is supported. Compared with the structure which implement | achieves the function to perform and the function which supports the stopper 33 so that a movement to the radial direction of the tire 93 is possible by a separate member, it can reduce in size.

  The tire printer 10 may have a configuration in which the function of supporting the tire 93 and the function of supporting the stopper 33 movably in the radial direction of the tire 93 are realized by separate members.

  Since the tire printer 10 can perform printing on the tire 91 to which the wheel 92 is attached by attaching the shaft 41 to the DD motor 29, not only the tire 93 to which the wheel is not attached but also the wheel Printing can also be performed on the tire 91 to which 92 is attached.

  The tire printer 10 may have a configuration capable of executing printing only on the tire 93 to which no wheel is attached.

  In the tire mounting portion 30 described above, the three stoppers 33 can move independently from each other in the radial direction indicated by the arrow 90 b of the tire 93 with respect to the rail 32. However, the tire placement unit 30 is configured so that the three stoppers 33 are arranged at equal intervals on the same circumference around the rotation shaft 90a of the tire 93 by the DD motor 29. For example, a link mechanism 34 as shown in FIG. 16 and FIG.

  FIG. 16 is a bottom view of the tire placement unit 30 in a state where the three stoppers 33 are close to each other. FIG. 17 is a bottom view of the tire placement portion 30 in a state where the three stoppers 33 are separated from each other.

  As shown in FIGS. 16 and 17, the link mechanism 34 extends in the same direction as the extending direction of the rail 32 and the ring-shaped plate 35 supported by the circular plate 31 so as to be rotatable in the direction indicated by the arrow 90 c. Three rails 36 arranged below the rail 32, three long plates 37 connected to the stopper 33 and movable along the rails 36, an annular plate 35 and a long plate 37. 3 links 38 connected to each other.

  The link 38 includes a shaft 38 a that is rotatably supported by the annular plate 35 and a shaft 38 b that is rotatably supported by the long plate 37.

  When the tire printer 10 includes the link mechanism 34, the circular plate 31 and the rail 32 are indicated by an arrow 90b for movably supporting a portion (not shown) connecting the stopper 33 and the long plate 37. A long hole (not shown) extending in the direction is formed.

  When the tire placement unit 30 includes the link mechanism 34, if any one of the three stoppers 33 is moved along the rail 32 in the direction indicated by the arrow 90 b, the tire placement unit 30 is left via the link mechanism 34. The two stoppers 33 are similarly moved along the rails 32 in the directions indicated by the arrows 90b.

  When the tire printer 10 includes the link mechanism 34, when the stopper 33 is moved in the radial direction indicated by the arrow 90 b of the tire 93, the three stoppers 33 move the rotation axis 90 a of the tire 93 by the DD motor 29. Since the link mechanism 34 maintains the state of being arranged at equal intervals on the same circumference as the center, compared to a configuration in which each of the three stoppers 33 is independently moved in the radial direction of the tire 93, The position where the tire 93 is placed in the tire placement unit 30 can be determined with high accuracy. Therefore, when the tire printer 10 includes the link mechanism 34, the tire printer 10 can perform high-precision printing on the tire 93 to which no wheel is attached.

  In the above, in the tire printer 10, the three rails 32 are arranged at equal intervals on the same circumference around the rotation axis 90 a of the tire 93 by the DD motor 29, but the three rails 32 are the rotation axes. It does not need to be arranged at equal intervals on the same circumference centering on 90a. Similarly, in the tire printer 10, the three stoppers 33 are arranged at equal intervals on the same circumference around the rotation axis 90a, but the three stoppers 33 are the same circle around the rotation axis 90a. It does not have to be arranged at equal intervals on the circumference.

  Further, in the above, the tire printer 10 positions the tire 93 in the direction orthogonal to the rotation shaft 90 a when the stopper 33 contacts the inner peripheral portion of the tire 93. However, the tire printer 10 may be configured to position the tire 93 in a direction perpendicular to the rotation shaft 90 a by at least one of the three stoppers 33 coming into contact with the outer peripheral portion of the tire 93.

  In the above, the tire printer 10 includes three rails 32 and three stoppers 33. However, the tire printer 10 may include a plurality of rails 32 and stoppers 33 other than three.

10 Tire printer 10a Arrow (arrow indicating vertical direction)
29 DD motor (tire rotating part)
30 Tire placement part 32 Rail (tire support part)
33 Stopper (tire positioning part)
34 Link mechanism 41 Shaft (wheel support)
53 Inkjet head 90a Rotating shaft 90b Arrow (arrow indicating the radial direction of the tire)
90c arrow (arrow indicating the circumferential direction of the tire)
91 Tire 91a Side surface portion 92 Wheel 93 Tire 93a Side surface portion 93b Inner peripheral portion

Claims (8)

A tire placement portion on which the tire is placed in a state where a pair of side surface portions of the tire are arranged vertically in the vertical direction;
A tire rotating unit for rotating the tire mounting unit in order to rotate the tire mounted on the tire mounting unit in a circumferential direction of the tire;
An inkjet head that performs printing on the upper side of the pair of side surfaces when the tire is mounted on the tire mounting portion;
The tire mounting portion is configured to mount the tire by supporting a lower side surface portion of the pair of side surface portions from below. The tire placement portion is
A plurality of tire support portions for supporting the lower side surface portion from below;
A tire positioning unit that positions the tire in a direction perpendicular to the rotation axis of the tire by the tire rotating unit,
The tire printer according to claim 1, wherein each of the plurality of tire support portions supports the tire positioning portion.   The tire printer according to claim 2, wherein the tire positioning unit positions the tire in a direction orthogonal to the rotation axis by contacting an inner peripheral portion of the tire. The tire placement portion includes three tire support portions as the plurality of tire support portions,
The tire support portion extends in a radial direction of the tire,
4. The tire printer according to claim 2, wherein the three tire support portions are arranged at equal intervals on the same circumference with the rotation axis as a center. 5.   5. The tire according to claim 4, wherein the tire placement portion includes a link mechanism that simultaneously moves the tire positioning portion supported by each of the three tire support portions in the radial direction. printer. The tire placement portion includes three tire support portions that support the lower side surface portion from the lower side,
2. The tire printer according to claim 1, wherein the three tire support portions are arranged at equal intervals on the same circumference around the rotation axis of the tire by the tire rotation portion. The tire placement portion is
Three tire positioning portions for positioning the tire in a direction perpendicular to the rotation axis of the tire by the tire rotating portion;
A link mechanism that simultaneously moves the three tire positioning portions in the radial direction of the tire in a state where the three tire positioning portions are arranged at equal intervals on the same circumference around the rotation axis. The tire printer according to claim 1, wherein: A pair of side surface portions of the tire includes a wheel support portion that supports a wheel attached to the tire in a state of being arranged vertically in the vertical direction;
The tire rotating unit rotates the wheel support unit to rotate the tire supported by the wheel support unit via the wheel in the circumferential direction of the tire,
The said inkjet head performs printing on the upper side of the said upper side surface part, when the said tire is supported by the said wheel support part via the said wheel, From Claim 1 to Claim 7 characterized by the above-mentioned. The tire printer in any one.

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