1. A machine for removing and mounting a tire relative to a vehicle wheel rim, said machine comprising:
a supporting structure,
a clamping and rotating device mounted on said supporting structure for clamping and rotating a wheel rim around a rotating axis,
an operating unit which comprises:
a carriage which is movably mounted on said support structure,
a slide which is movably mounted on said carriage,
an actuator for moving said slide relative to said supporting structure,
a guide means for guiding movement of said slide relative to said carriage along a substantially curvilinear path, said guide means comprising a connecting rod positioned between said slide and said carriage, and
an operating head which includes a pushing body for pushing a portion of a side surface of the tire, and a grip tool for gripping one section of a bead of the tire,
said guide means guiding the operating head between first and second positions located respectively closer and farther from said clamping and rotating device.
2. A machine according to claim 1, wherein said pushing body comprises at least one contact surface positionable against said portion of side surface of the tire and said grip tool moves between an idle position in which it is at least partially housed inside said pushing body, an intermediate fitting position in which it is at least partially protruding from said pushing body, and an entrainment position in which it is protruding from said pushing body and is substantially sloped towards said contact surface for the entrainment of said tire.
3. A machine according to claim 2, comprising movement device of said grip tool between said idle position and said intermediate fitting position.
4. A machine according to claim 3, wherein said movement device comprise a small connecting rod that has one end hinged along a substantially median portion of said grip tool and the opposite end hinged to said pushing body.
5. A machine according to claim 3, wherein said movement device comprise at least a linear second actuator.
6. A machine according to claim 5, wherein said movement device comprise a drive element with a substantially elongated shape that is associated with said second actuator and that is arranged sliding inside said pushing body.
7. A machine according to claim 6, wherein said grip tool has an end hinged to said drive element.
8. A machine according to claim 5, wherein said second actuator is a fluid actuator.
9. A machine according to claim 2, comprising drive means for conveying the sideways movement of said operating head to said grip tool and suitable for moving said grip tool between said intermediate fitting position and said entrainment position.
10. A machine according to claim 9, wherein said drive means comprise at least one system of levers.
11. A machine according to claim 10, wherein said system of levers comprises a first lever which has one end hinged to a second lever and the opposite end hinged to a supporting slide of said operating head, associated with said supporting structure moving along said above curvilinear direction.
12. A machine according to claim 11, wherein said first lever supports a linear second actuator of a movement device of said grip tool between said idle position and said intermediate fitting position.
13. A machine according to claim 11, wherein said first lever is arranged substantially parallel to said rotation axis.
14. A machine according to claim 11, wherein said second lever has the end opposite said first lever hinged to a third lever.
15. A machine according to claim 14, wherein said third lever has the end opposite said second lever hinged to a supporting carriage of said slide associated moving with said structure, and is hinged to said slide along a substantially median section.
16. A machine according to claim 15, wherein the section of said third lever placed in between said carriage and said slide coincide with a connecting rod placed in between said carriage and said slide.
17. A machine according to claim 2, wherein said contact surface is shaped substantially protruding towards said clamping and rotating device.
18. A machine according to claim 2, wherein said grip tool is fully housed inside said pushing body in said idle position.
19. A machine according to claim 2, wherein said grip tool has a substantially elongated shape and has a free end provided with a substantially hooked end section and suitable for locating itself on the inner surface of said tire.
20. A machine according to claim 1, wherein said guide means comprise at least one curvilinear slot defined in one of said slide and said carriage, and pin which extends through said slot and engages a second of said slide and said carriage.
21. A machine according to claim 20, wherein said curvilinear slot has the convexity turned towards said clamping and rotating device.
22. A machine according to claim 20, wherein said curvilinear slot is defined on at least one substantially vertical wall of said slide.
23. A machine according to claim 20, wherein said guide means comprise a plurality of said curvilinear slots and of corresponding pins.
24. A machine according to claim 1, wherein said carriage is movable along a transom of said structure arranged above said clamping and rotating device.
25. A machine according to claim 1, wherein said actuator element is placed in between said carriage and said slide.
26. A machine according to claim 1, wherein said actuator element is composed of a first actuator of the linear type.
27. A machine according to claim 26, wherein said first actuator is a fluid actuator.
28. A machine according to claim 1, wherein said pushing body is substantially tubular.
29. A machine according to claim 1, wherein said pushing body is arranged substantially transversal with respect to said rotation axis.
30. A machine according to claim 1, wherein said rotation axis is substantially horizontal.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A communication apparatus comprising:
an acquisition unit configured to acquire first access category information to be used in communication between a base station and another communication apparatus, wherein said acquisition unit further acquires first communication band information to be used in the communication between the base station and the other communication apparatus; and
a connection unit configured to perform connection process to the base station, in accordance with second access category information to be used in communication between the base station and the communication apparatus, and the first access category information acquired by said acquisition unit, wherein said connection unit performs the connection process to the base station, in accordance with the second access category information, second communication band information to be used in the communication between the base station and the communication apparatus, the first access category information and the first communication band information.
2. The apparatus according to claim 1, further comprising a selection unit configured to select, among a plurality of base stations, a base station as a connection-destination in the connection process to be performed by said connection unit, in accordance with the second access category information and the first access category information.
3. The apparatus according to claim 2, wherein said selection unit accepts a user input for selecting the base station, as the connection-destination in the connection process to be performed by said connection unit, among the plurality of base stations.
4. The apparatus according to claim 1, wherein the first communication band information includes information of occupancy time during which a wireless communication medium is occupied in the communication between the base station and the other communication apparatus, and
the second communication band information includes information of occupancy time during which a wireless communication medium is occupied in the communication between the base station and the communication apparatus.
5. The apparatus according to claim 1, wherein said connection unit performs connection process to the base station, in a case where sum of a first time included in the first communication band information and a second time included in the second communication band information is less than a predetermined reference time.
6. The apparatus according to claim 1, wherein said connection unit performs the connection process to the base station, in accordance with the second access category information, the first access category information, the number of other communication apparatuses being connected to the base station.
7. The apparatus according to claim 1, wherein said connection unit performs the connection process to the base station, in accordance with the second access category information, the first access category information, and a communication scheme between the base station and the other communication apparatus.
8. The apparatus according to claim 1, further comprising a holding unit configured to hold encryption information and authentication information, which are used in communication with the base station,
wherein said connection unit performs the connection process to the base station based on the encryption information and the authentication information held by said holding unit.
9. A method of controlling a communication apparatus, the method comprising:
an acquisition step of acquiring first access category information to be used in communication between a base station and another communication apparatus, wherein the acquisition step further acquires first communication band information to be used in the communication between the base station and the other communication apparatus; and
a connection step of performing connection process to the base station, in accordance with second access category information to be used in communication between the base station and the communication apparatus, and the first access category information acquired in the acquisition step, wherein the connection step performs the connection process to the base station, in accordance with the second access category information, second communication band information to be used in the communication between the base station and the communication apparatus, the first access category information and the first communication band information.
10. A non-transitory computer-readable storage medium storing a computer program for controlling a communication apparatus, wherein the computer program causes a computer to execute the following:
an acquisition step of acquiring first access category information to be used in communication between a base station and another communication apparatus, wherein the acquisition step further acquires first communication band information to be used in the communication between the base station and the other communication apparatus; and
a connection step of performing connection process to the base station, in accordance with second access category information to be used in communication between the base station and the communication apparatus, and the first access category information acquired in the acquisition step, wherein the connection step performs the connection process to the base station, in accordance with the second access category information, second communication band information to be used in the communication between the base station and the communication apparatus, the first access category information and the first communication band information.