Abstract: A cruise control device with adjustable traveling distance of pulling cord reel, which is installed in a motor vehicle, and the motor vehicle is driven by an internal combustion engine having a speed control mechanism; the cruise control device of the motor vehicle comprising a running gear, a clutch, a pulling cord reel, and a pulling cord, characterized in that said pulling cord reel comprises: two side walls for forming a groove to accommodate the pulling cord; a middle section having at least two arcs with different radii; wherein the running gear of the cruise control device of the motor vehicle can detach the pulling cord reel by the clutch; an end of the pulling cord is coupled to the pulling cord reel, and the other end to the speed control mechanism; such that the installation of such pulling cord reel can be reversed, and the traveling distance for the cruise control device of the motor vehicle can be changed easily.

Abstract: A cruise control device with adjustable traveling distance of pulling cord reel, which is installed in a motor vehicle, and the motor vehicle is driven by an internal combustion engine having a speed control mechanism; the cruise control device of the motor vehicle comprising a running gear, a clutch, a pulling cord reel, and a pulling cord, characterized in that said pulling cord reel comprises: two side walls for forming a groove to accommodate the pulling cord; a middle section having at least two arcs with different radii; wherein the running gear of the cruise control device of the motor vehicle can detach the pulling cord reel by the clutch; an end of the pulling cord is coupled to the pulling cord reel, and the other end to the speed control mechanism; such that the installation of such pulling cord reel can be reversed, and the traveling distance for the cruise control device of the motor vehicle can be changed easily.

Abstract: A tire-condition sensor for installing on a wheel rim of a tire where the wheel rim defines a wheel rim platform and a valve rod. The tire-condition sensor includes a valve rod, a main body, and two positioning devices. The valve rod is for passing through the valve hole and is fixed on the wheel rim. The main body has a sensor for sensing the condition of the tire, connecting to the valve rod, and defining a positioning direction which is more or less perpendicular to the wheel rim platform. The two positioning devices, positioning on the main body, can move in the positioned direction relative to the main body, adjustably touch the wheel rim platform, and by means of this to firmly fix the tire-condition sensor.