Pet leash
A twin pet leash prevents tangling by permitting the reel portion to rotate relative to the handle portion, and features individually controllable leash stop mechanisms. Even while an individual leash is stopped, the reel portion can rotate relative to the handle portion so that tangling of the pet leashes is avoided. The leash handle portion has two triggers that are color coded to match the color of the leash, so that a user can readily identify which of the two leashes are to be stopped. A ball bearing and/or a point contact reduces rotational friction on the reel portion while one or both of the brakes are activated.
1. A pet leash, comprising:
a handle configured to be held by a user;
a first trigger disposed on the handle and positioned to be actuated by the user;
a second trigger disposed on the handle and positioned to be actuated by the user;
a reel casing rotatably connected to the handle;
a first reel disposed in the reel casing and having a first leash wrapped around the first reel;
a second reel disposed in the reel casing and having a second leash wrapped around the second reel;
a brake rotatably disposed in the handle and extending into the reel casing, the brake comprising:
a first brake member slidably disposed in the brake such that the first brake member can slide into and out of contact with the first reel in the reel casing; and
a second brake member slidably disposed in the brake such that the second brake member can slide into and out of contact with the second reel in the reel casing;
a first actuator arm pivotably mounted in the handle and linked to the first trigger such that movement of the first trigger pivots the first actuator arm, wherein the first actuator arm is configured to pivot to displace the first brake member towards the first reel;
a ball bearing disposed at an end of the first actuator arm and positioned to contact the first brake member when the first actuator arm pivots to displace the first actuator arm;
a second actuator arm pivotably mounted in the handle and linked to the second trigger such that movement of the second trigger pivots the second actuator arm, wherein the second actuator arm is configured to pivot to displace the second brake member towards the second reel;
a contact member disposed at an end of the second actuator arm and positioned to contact the second brake member when the second actuator arm pivots to displace the first actuator arm.
2. The pet leash of claim 1 , wherein the first actuator arm is configured to position the ball bearing such that an outer surface of the ball bearing is parallel to a surface of first brake member that is in contact with the ball bearing.
3. The pet leash of claim 1 , wherein the first actuator arm is configured to position the ball bearing such that an outer surface of the ball bearing is not parallel to a surface of first brake member that is in contact with the ball bearing.
4. The pet leash of claim 1 , wherein the ball bearing comprises a curved outer surface such that the contact between the first brake member and the ball bearing contacts the curved outer surface.
5. The pet leash of claim 1 , wherein a contact surface of the first brake member that contacts the ball bearing is an annular surface, and
wherein the first actuator arm is configured to bring a rotational axis of the ball bearing parallel to a radial direction of the annular surface of the first brake member when the ball bearing contacts the annular surface.
6. The pet leash of claim 1 , wherein the contact member comprises a spherical element fixed to the end of the second actuator arm.
7. The pet leash of claim 1 , further comprising a wear element positioned on the second brake member at the location of contact between the second brake member and the contact member, wherein the wear element is configured to reduce wear of the second brake member caused by the contact member.
8. The pet leash of claim 1 , wherein the wear element comprises a metal disk that is fixed to a surface of the second brake member.
9. The pet leash of claim 1 , wherein the contact member is configured to create a point contact between the second actuator arm and the second brake member.