1. A hair clipper having a moving lower blade comprising: an eccentric cam, which is connected to a rotary shaft of a motor installed in a main body and an eccentric shaft formed on the eccentric cam, which is inserted into a fixing groove formed in an upper blade fixing plate, the eccentric cam driving the fixing plate to vibrate horizontally,
wherein the lower blade is mounted on a blade support, such that the lower blade can move horizontally, and is connected to one end of a link, the central portion of which is connected to the blade support, and the other end of which is connected to the lower surface of an upper blade fixing plate, an upper blade being fixed to the lower surface of the upper blade fixing plate, and thus, when the upper blade fixing plate vibrates horizontally by the rotation of the motor, the lower blade vibrates on the blade support in the direction opposite to the vibration of the upper blade by way of the link.
2. The hair clipper according to claim 1, wherein:
the upper blade fixing plate further includes a link fixing protrusion, which is formed on the center of the lower surface thereof and is inserted into an upper blade fixing hole of the link, and spring fixing holes, which are respectively formed through both sides of the front end of an upper surface thereof, ends of a vibration spring being respectively fixedly inserted into the spring fixing holes;
the link includes a lower blade fixing hole formed through one end thereof, the upper blade fixing hole formed through the other end thereof, and a rotational center hole formed through the center thereof;
the blade support includes a link fixing protrusion, which is formed on the center of the upper surface thereof and is inserted into the rotational center hole of the link, a locking protuberance formed along the circumferential surface of the link fixing protrusion, and guide protrusions formed on the upper surface of the blade support at both sides of the link fixing protrusion; and
the lower blade includes guide grooves respectively formed at both sides thereof so that the lower blade moves horizontally under the condition that the guide protrusions of the blade support are inserted into the guide grooves, a link fixing protrusion moving groove formed between the guide grooves for preventing the link fixing protrusion from interfering with the lower blade when the lower blade moves horizontally, and a link connecting protrusion formed on a center of the upper surface of the lower blade and fixedly inserted into the lower blade fixing hole of the link.
3. The hair clipper according to claim 2, wherein the vibration spring includes a hook portion formed at a central region thereof that is positioned on a spring fixing protrusion formed on the blade support, spring portions formed at both sides of the hook portion, and fixing terminals formed at the ends of the spring portions and fixedly inserted into the spring fixing holes of the upper blade fixing plate.
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. An automatic transmission control apparatus comprising:
a shift control section configured to issue instructions to selectively engage and disengage a combination of a plurality of frictionally engaging elements of a planetary gear mechanism to establish a corresponding one of a plurality of gear ratios;
a first rotary-speed detecting section configured to detect a rotational speed of a first rotary member of the planetary gear mechanism which rotates at a different speed from an input shaft of the planetary gear mechanism;
a second rotary-speed detecting section configured to detect a rotational speed of a second rotary member of the planetary gear mechanism which rotates at a different speed from the input shaft of the planetary gear mechanism;
an input shaft speed calculation section configured to calculate a rotational speed of the input shaft using values detected by the first and second rotary-speed detecting sections;
an output shaft speed detection section configured to detect a rotational speed of an output shaft of the planetary gear mechanism;
a gear ratio calculation section configured to calculate a gear ratio from the rotational speed of the input shaft calculated by the input shaft speed calculation section and the rotational speed of the output shaft detected by the output shaft speed detection section;
a neutral determination section configured to determine if the automatic transmission has failed and a neutral state has been established due to an occurrence of an engagement malfunction of one the frictionally engaging elements, based on the gear ratio calculated by the gear ratio calculation section; and
a neutral control section configured to conduct a neutral control by forcing the automatic transmission to shift to a non-malfunctioning gear ratio upon the neutral determination section determining that the automatic transmission failed and is in the neutral state when the shift control section issues instructions to establish an appropriate one of the gear ratios for driving.
2. The automatic transmission control apparatus as claimed in claim 1, wherein
the neutral control section is further configured to determine which one of the frictionally engaging elements has the engagement malfunction based on a selected gear ratio requiring at least one of the frictionally engaging elements to be engaged, and a relationship between the rotational speeds detected by the first and second rotary-speed detecting sections.
3. The automatic transmission control apparatus as claimed in claim 2, wherein
the neutral control section is further configured to conduct a shift control without using the frictionally engaging element determined as having the engagement malfunction.
4. The automatic transmission control apparatus as claimed in claim 1, wherein
the neutral control section is further configured to determine a gear ratio, which a shift should be made to, depending on a vehicle speed at the time when the neutral determination section determines that the automatic transmission has failed and the neutral state has been established.
5. The automatic transmission control apparatus as claimed in claim 2, wherein
the neutral control section is further configured to determine a gear ratio, which a shift should be made to, depending on a vehicle speed at the time when the neutral determination section determines that the automatic transmission has failed and the neutral state has been established.
6. The automatic transmission control apparatus as claimed in claim 3, wherein
the neutral control section is further configured to determine a gear ratio, which a shift should be made to, depending on a vehicle speed at the time when the neutral determination section determines that the automatic transmission has failed and the neutral state has been established.
7. An automatic transmission control apparatus comprising:
shift control means for issuing instructions to selectively engage and disengage a combination of a plurality of frictionally engaging elements of a planetary gear mechanism to establish a corresponding one of a plurality of gear ratios;
first rotary-speed detecting means for detecting a rotational speed of a first rotary member of the planetary gear mechanism which rotates at a different speed from an input shaft of the planetary gear mechanism;
second rotary-speed detecting means for detecting a rotational speed of a second rotary member of the planetary gear mechanism which rotates at a different speed from the input shaft of the planetary gear mechanism;
input shaft speed calculation means for calculating a rotational speed of the input shaft using values detected by the first and second rotary-speed detecting means;
output shaft speed detecting means for detecting a rotational speed of an output shaft of the planetary gear mechanism;
gear ratio calculation means for calculating a gear ratio from the rotational speed of the input shaft calculated by the input shaft speed calculation means and the rotational speed of the output shaft detected by the output shaft speed detection means;
neutral determination means for determining if the automatic transmission has failed and a neutral state has been established due to an occurrence of an engagement malfunction of one the frictionally engaging elements, based on the gear ratio calculated by the gear ratio calculation means; and
neutral control means for conducting a neutral control by forcing the automatic transmission to shift to a non-malfunctioning gear ratio upon the neutral determination means determining that the automatic transmission has failed and is in the neutral state when the shift control section issues instructions to establish an appropriate one of the gear ratios for driving.
8. A method of controlling an automatic transmission comprising:
issuing instructions to selectively engage and disengage a combination of a plurality of frictionally engaging elements of a planetary gear mechanism to establish a corresponding one of a plurality of gear ratios;
detecting a first rotational speed of a first rotary member of the planetary gear mechanism which rotates at a different speed from an input shaft of the planetary gear mechanism;
detecting a second rotational speed of a second rotary member of the planetary gear mechanism which rotates at a different speed from the input shaft of the planetary gear mechanism;
calculating a rotational speed of the input shaft using values of the first and second rotational speeds that were detected;
detecting a rotational speed of an output shaft of the planetary gear mechanism;
calculating a gear ratio from the rotational speed of the input shaft that was calculated and the rotational speed of the output shaft that was detected;
determining if the automatic transmission has failed and a neutral state has been established due to an occurrence of an engagement malfunction of one the frictionally engaging elements, based on the gear ratio that was calculated; and
conducting a neutral control by forcing the automatic transmission to shift to a non-malfunctioning gear ratio upon determining that the automatic transmission has failed and is in the neutral state when instructions are issues to establish an appropriate one of the gear ratios for driving.