1. A fixing unit comprising:
an endless fixing belt having an inside surface, the inside surface being adapted to receive a lubricant and having outside edges extending circumferentially about the fixing belt;
a driver for drivingly rotating the fixing belt in a moving rotating direction; and
a pressing member for pressing the fixing belt on the inside surface thereof thereby pressing the fixing belt against a recording member;
wherein the fixing belt includes grooves formed in the inside surface thereof,
a majority of the grooves extending entirely around the endless fixing belt and along a circumferential direction of the fixing belt and having a width of 10 to 80 \u03bcm.
2. A fixing unit according to claim 1, wherein the grooves have a depth of 4 to 30 \u03bcm and a density of 5 or more groove linesmm with respect to the inside surface of the fixing belt.
3. A fixing unit according to claim 1, wherein the majority of the grooves each extend to form a concave shape facing in the forward moving rotating direction of the fixing belt.
4. A fixing unit according to claim 1, wherein all the grooves are extended entirely around the endless fixing belt and along the circumferential direction of the fixing belt.
5. A fixing unit according to claim 1, wherein none of the grooves crosses one another.
6. The fixing unit according to claim 1, wherein all of the grooves are arranged to extend entirely around the endless fixing belt.
7. An image forming apparatus comprising:
an image carrier;
an electrostatic latent image forming unit for forming an electrostatic latent image on the image carrier;
a developing device for forming a toner image on the image carrier by developing the electrostatic latent image;
a transfer unit for transferring the toner image from the image carrier to a recording member; and
a fixing unit for fixing the toner image, formed on the recording member, to the recording member, wherein the fixing unit comprises:
an endless fixing belt having a lubricant applied to an inside surface thereof and including grooves formed in the inside surface thereof, a majority of the grooves extending entirely around the endless fixing belt and along a circumferential direction thereof so that lubricant applied to the grooves is prevented from leaking outside edges of the fixing belt;
a driver for drivingly rotating the fixing belt; and
a pressing member for pressing the fixing belt on the inside surface thereof thereby pressing the fixing belt against the recording member,
wherein the grooves have a width of 10 to 80 \u03bcm.
8. An image forming apparatus according to claim 7, wherein all of the grooves extend entirely around the endless fixing belt and along a circumferential direction thereof.
9. An image forming apparatus according to claim 7, wherein none of the grooves crosses one another.
10. The image forming apparatus according to claim 7, wherein all of the grooves are arranged to extend entirely around the endless fixing belt.
11. A fixing belt for use in a fixing unit which drivingly rotates an endless fixing belt having a lubricant applied to an inside surface thereof and which presses the fixing belt against a recording medium formed with a toner image thereon thereby fixing the toner image to the recording medium, wherein the inside surface of the fixing belt is formed with grooves, a majority of the grooves extending entirely around the endless fixing belt and along a circumferential direction of the fixing belt and having a width of 10 to 80 \u03bcm.
12. A fixing unit according to claim 11, wherein the majority of the grooves each extend to form a concave shape facing in the forward moving rotating direction of the fixing belt.
13. A fixing belt according to claim 11, wherein all of the grooves are extended entirely around the endless fixing belt and along a circumferential direction of the fixing belt.
14. A fixing belt according to claim 11, wherein none of the grooves crosses one another.
15. The fixing belt according to claim 11, wherein all of the grooves are arranged to extend entirely around the endless fixing belt.
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 front wheel assembly for baby strollers, comprising:
a positioning member adapted to be connected to a front frame of the stroller, a connection unit inserted into the positioning member and connected with a connection member to which front wheels are connected,
wherein the positioning member has a passage defined therethrough and the connection unit is inserted into the passage, the connection unit includes a button, a spring, an insertion and two pins, the insertion is received in the passage of the positioning member and the insertion has a receiving hole for receiving the spring and the button therein, the button has two inclined guide slots and the two pins extend into the guide slots, when the button is moved up and down, the two pins are moved in the inclined guide slots,
wherein the connection member includes protrusions extending from a top thereof and the positioning member has caves defined in an underside thereof so that the protrusions are engaged with the caves, a connection piece is connected between the positioning member and the connection member.
2. (canceled)
3. The assembly as claimed in claim 2, wherein the insertion has an expandable portion which has an axial slit to define the expandable portion into two pieces, each piece of the expandable portion has a flange, the passage of the positioning member includes an upper space, a middle space and a low space, the insertion, the expandable portion and the flanges are respectively engaged with the upper space, the middle space and the low space.
4. (canceled)
5. The assembly as claimed in claim 1, wherein the connection piece has an annular groove defined in an outer periphery of a first end thereof so that the two pins are engaged with the annular groove.
6. The assembly as claimed in claim 5, wherein the connection piece has a threaded section on a second end thereof and a nut is connected to the threaded section.
7. The assembly as claimed in claim 1, wherein the connection piece has a positioning plate extending radially outward from a middle portion thereof and the connection member has a positioning hole through which the connection piece extends, the positioning plate has two straight sides and the positioning hole has two straight inner sides which are matched with the straight sides of the positioning plate so that the connection piece is not rotatable.
8. (canceled)
9. A front wheel assembly for baby strollers, comprising:
a positioning member adapted to be connected to a front frame of the stroller, a connection unit inserted into the positioning member and connected with a connection member to which front wheels are connected,
wherein the positioning member has a horizontal passage and a vertical passage, a first rod is inserted into the horizontal passage and includes a first block and a second block extending radially therefrom, a recess with two inner ends is defined in the horizontal passage so that the second block is axially movable in the recess and stopped by the inner ends, a second rod is inserted into the vertical passage and a spring is mounted to the second rod, a radial hole is defined through the second rod so that the first rod extends through the radial hole, the first block includes an inclined surface which pushes a periphery of the radial hole to move the second rod to compress the spring when the first rod is moved horizontally.