Ratchet wrench and body used in ratchet wrench

A ratchet wrench comprising:

• a body (10);
• a ratchet (40), arranged in the body (10) and having a plurality of teeth (42) defining a circumference of the ratchet (40);
• a first pawl (60), engaged between the body (10) and the ratchet (40) and capable of moving between positions relative to the ratchet as follows:
• a first position, wherein at the first position, the first pawl (60) is coupled with the ratchet (40) so that the body (10) provides a transmitted torque in a first rotation direction through the first pawl (60):
• a second position, wherein at the second position, the first pawl (60) does not transmit the torque;
• a second pawl (80), arranged between the body (10) and the ratchet (40) and capable of moving between positions relative to the ratchet as follows:
• a first position, wherein at the first position, the second pawl (80) is coupled with the ratchet (40) so that the body (10) provides a transmitted torque in a second rotation direction through the second pawl (80);
• a second position, wherein at the second position, the second pawl (80) does not transmit the torque;
• a control member (100), capable of being operated to stay in one of at least the following positions:
• a first position and a second position, wherein
• when the control member (100) is in the first position, the first pawl (60) is coupled with the control member (100), and is therefore away from the first position of the first pawl (60) so that the second pawl (80) is allowed to be coupled with the ratchet (40), so as to enable the body (10) to provide the transmitted torque in the second rotation direction;
• and
• when the control member (100) is in the second position, the second pawl (80) is coupled with the control member (100), and is therefore away from the first position of the second pawl (80) so that the first pawl (60) is allowed to be coupled with the ratchet (40), so as to enable the body (10) to provide the transmitted torque in the first rotation direction;
• wherein at least one of the first pawl (60) and the second pawl (80) comprises teeth (62, 82) including a tooth (66, 86) protruding from a side surface (64) of said at least one of the first pawl (60) and the second pawl (80) to enlarge the contact Surface between teeth (62, 82) and tooth portion (42) of ratchet (40);
• the body (10) has an operating part (14);
• the operating part (14) comprises a groove (16) formed of a bottom wall (18) and an inner peripheral wall (20) surrounding the bottom wall (18) used to accommodate the ratchet (40), the first pawl (60), and the second pawl (80);
• and
• a first wall (22) and a second wall (24) are disposed in the groove (16), the first pawl (60) is disposed between the first wall (22) and the ratchet (40), the second pawl (80) is disposed between the second wall (24) and the ratchet (40), a conformation of the first wall (22) enables the first pawl (60) to be caught between the first wall (22) and the ratchet (40) and to be engaged with the ratchet (40) when the first pawl (60) is at the first position thereof, so as to provide the transmitted torque;
• a conformation of the second wall (24) enables the second pawl (80) to be caught between the second wall (24) and the ratchet (40) and to be engaged with the ratchet (40) when the second pawl (80) is at the first position thereof so as to provide the transmitted torque;
• the first wall (22) extends from a first end close to the inner peripheral wall (20) to a second end close to the second wall (24), and the first wall (22) is inclined so that a distance between the second end and the ratchet (40) is shorter than a distance between the first end and the ratchet (40);
• and
• the second wall (24) extends from a first end close to the inner peripheral wall (20) to a second end close to the first wall (22), and the second wall (24) is inclined so that a distance between the second end and the ratchet (40) is shorter than a distance between the first end and the ratchet (40).

A ratchet wrench comprising:

• a body (10);
• a ratchet (40), arranged in the body (10) and having a plurality of teeth (42) defining a circumference of the ratchet (40);
• a first pawl (60), engaged between the body (10) and the ratchet (40) and capable of moving between positions relative to the ratchet as follows:
• a first position, wherein at the first position, the first pawl (60) is coupled with the ratchet (40) so that the body (10) provides a transmitted torque in a first rotation direction through the first pawl (60):
• a second position, wherein at the second position, the first pawl (60) does not transmit the torque;
• a second pawl (80), arranged between the body (10) and the ratchet (40) and capable of moving between positions relative to the ratchet as follows:
• a first position, wherein at the first position, the second pawl (80) is coupled with the ratchet (40) so that the body (10) provides a transmitted torque in a second rotation direction through the second pawl (80);
• a second position, wherein at the second position, the second pawl (80) does not transmit the torque;
• a control member (100), capable of being operated to stay in one of at least the following positions:
• a first position and a second position, wherein
• when the control member (100) is in the first position, the first pawl (60) is coupled with the control member (100), and is therefore away from the first position of the first pawl (60) so that the second pawl (80) is allowed to be coupled with the ratchet (40), so as to enable the body (10) to provide the transmitted torque in the second rotation direction;
• and
• when the control member (100) is in the second position, the second pawl (80) is coupled with the control member (100), and is therefore away from the first position of the second pawl (80) so that the first pawl (60) is allowed to be coupled with the ratchet (40), so as to enable the body (10) to provide the transmitted torque in the first rotation direction;
• wherein at least one of the first pawl (60) and the second pawl (80) comprises teeth (62, 82) including a tooth (66, 86) protruding from a side surface (64) of said at least one of the first pawl (60) and the second pawl (80) to enlarge the contact Surface between teeth (62, 82) and tooth portion (42) of ratchet (40);
• the control member (100) is capable of being operated to stay in a neutral position, and when the control member (100) is in the neutral position, the control member (100) is not coupled with the first pawl (60) or the second pawl (80), and the body (10) is allowed to provide the transmitted torque in the first rotation direction and the second rotation direction at the same time;
• the body (10) has an operating part (14);
• the operating part (14) comprises a groove (16) formed of a bottom wall (18) and an inner peripheral wall (20) surrounding the bottom wall (18) used to accommodate the ratchet (40), the first pawl (60), and the second pawl (80);
• and
• a first wall (22) and a second wall (24) are disposed in the groove (16), the first pawl (60) is disposed between the first wall (22) and the ratchet (40), the second pawl (80) is disposed between the second wall (24) and the ratchet (40), a conformation of the first wall (22) enables the first pawl (60) to be caught between the first wall (22) and the ratchet (40) and to be engaged with the ratchet (40) when the first pawl (60) is at the first position thereof, so as to provide the transmitted torque;
• a conformation of the second wall (24) enables the second pawl (80) to be caught between the second wall (24) and the ratchet (40) and to be engaged with the ratchet (40) when the second pawl (80) is at the first position thereof so as to provide the transmitted torque;
• wherein
• the first wall (22) extends from a first end close to the inner peripheral wall (20) to a second end close to the second wall (24), and the first wall (22) is inclined so that a distance between the second end and the ratchet (40) is shorter than a distance between the first end and the ratchet (40);
• and
• the second wall (24) extends from a first end close to the inner peripheral wall (20) to a second end close to the first wall (22), and the second wall (24) is inclined so that a distance between the second end and the ratchet (40) is shorter than a distance between the first end and the ratchet (40).

A ratchet wrench comprising:

• a body (10);
• a ratchet (40), arranged in the body (10) and having a plurality of teeth (42) defining a circumference of the ratchet (40);
• a first pawl (60), engaged between the body (10) and the ratchet (40) and capable of moving between positions relative to the ratchet as follows:
• a first position, wherein at the first position, the first pawl (60) is coupled with the ratchet (40) so that the body (10) provides a transmitted torque in a first rotation direction through the first pawl (60):
• a second position, wherein at the second position, the first pawl (60) does not transmit the torque;
• a second pawl (80), arranged between the body (10) and the ratchet (40) and capable of moving between positions relative to the ratchet as follows:
• a first position, wherein at the first position, the second pawl (80) is coupled with the ratchet (40) so that the body (10) provides a transmitted torque in a second rotation direction through the second pawl (80);
• a second position, wherein at the second position, the second pawl (80) does not transmit the torque;
• a control member (100), capable of being operated to stay in one of at least the following positions:
• a first position and a second position, wherein
• when the control member (100) is in the first position, the first pawl (60) is coupled with the control member (100), and is therefore away from the first position of the first pawl (60) so that the second pawl (80) is allowed to be coupled with the ratchet (40), so as to enable the body (10) to provide the transmitted torque in the second rotation direction;
• and
• when the control member (100) is in the second position, the second pawl (80) is coupled with the control member (100), and is therefore away from the first position of the second pawl (80) so that the first pawl (60) is allowed to be coupled with the ratchet (40), so as to enable the body (10) to provide the transmitted torque in the first rotation direction;
• wherein at least one of the first pawl (60) and the second pawl (80) comprises teeth (62, 82) including a tooth (66, 86) protruding from a side surface (64) of said at least one of the first pawl (60) and the second pawl (80) to enlarge the contact Surface between teeth (62, 82) and tooth portion (42) of ratchet (40);
• the first pawl (60) and the second pawl (80) are separated from each other by a spacing so that the two do not interfere with each other when moving;
• the body (10) has an operating part (14);
• the operating part (14) comprises a groove (16) formed of a bottom wall (18) and an inner peripheral wall (20) surrounding the bottom wall (18) used to accommodate the ratchet (40), the first pawl (60), and the second pawl (80);
• and
• a first wall (22) and a second wall (24) are disposed in the groove (16), the first pawl (60) is disposed between the first wall (22) and the ratchet (40), the second pawl (80) is disposed between the second wall (24) and the ratchet (40), a conformation of the first wall (22) enables the first pawl (60) to be caught between the first wall (22) and the ratchet (40) and to be engaged with the ratchet (40) when the first pawl (60) is at the first position thereof, so as to provide the transmitted torque;
• a conformation of the second wall (24) enables the second pawl (80) to be caught between the second wall (24) and the ratchet (40) and to be engaged with the ratchet (40) when the second pawl (80) is at the first position thereof so as to provide the transmitted torque;
• wherein
• the first wall (22) extends from a first end close to the inner peripheral wall (20) to a second end close to the second wall (24), and the first wall (22) is inclined so that a distance between the second end and the ratchet (40) is shorter than a distance between the first end and the ratchet (40);
• and
• the second wall (24) extends from a first end close to the inner peripheral wall (20) to a second end close to the first wall (22), and the second wall (24) is inclined so that a distance between the second end and the ratchet (40) is shorter than a distance between the first end and the ratchet (40).