Patent Application
20110219734
1. Field of the Invention
The present invention relates generally to a dust collector and, more particularly, to a dust collector having a lid-opening apparatus assembled thereon.
2. Description of the Related Art
Taiwan Patent M336816 discloses a dust-collecting assembly having a support structure, a dust collector installed on the support structure, and a container. The dust collector includes a lid connected thereon. The lid has a first position in which the lid is spaced from the container so that the container can be moved, and a second position in which the lid is abutted against the container to provide a seal thereat. A base is provided on the support structure and adjacent to the dust collector. A handle has a proximal end pivotally connected with the base. The handle further associates with a bar connected with one side of the lid of the dust collector. The lid will move up to the first position to facilitate the movement of the container when the handle is pulled up. The lid will move down to the second position when the handle is pulled down. The container includes an exhaust chamber formed thereon. The exhaust chamber can provide a vacuum condition to firm a bag installed in the container. A control system provided on one side of the support structure is used to control the dust collector.
According to the prior art, the base is provided on the support structure and the bar is connected with one side of the lid. While the handle is pulled, the lid is imbalance because that only one side of the lid will move up and the other side of the lid will move down. Moreover, the imbalance lid will make the container difficult to be removed when the handle is pulled up.
The present invention is, therefore, intended to obviate or at least alleviate the problems encountered in the prior art.
According to the present invention, the main purpose is to provide a dust collector which includes a lid, a lid-opening apparatus installed on the lid, a container and a conduit. The lid-opening apparatus includes a base, a controller, at least one cord and at least one limiting member. The controller is pivotally connected to the base, and the cord is associated with the conduit and the controller. While a user operates the controller, the cord will be tighten and the lid can be taken up steadily.
An advantage of the dust collector according to the present invention is that the cords of the lid-opening apparatus are respectively associated with two sides of the conduit and limiting members, and the limiting members are separately installed on two sides of the lid and corresponding to the two sides of the conduit. The lid can keep balance while the user operates the lid-opening apparatus.
Another advantage of the dust collector according to the present invention is that the controller is associated with the second ends of the cords so that the lid-opening apparatus can be easily operated by controlling the handle of the controller.
Other advantages and features of the present invention will become apparent from the following description referring to the drawings.
The present invention will be described through detailed illustration of the preferred embodiments referring to the drawings.
Referring to
The lid-opening apparatus 1 comprises a base 10, a controller 20 and at least one cord 30. Preferably, the lid-opening apparatus 1 has two cords 30. The base 10 is disposed on the lid 200. The controller 20 is installed on the base 10. Each of the cords 30 includes a first end 301 associated with the conduit 300, and a second end 302 associated with the controller 20. Two limiting members 210, which are installed on the lid 200 and adjacent to the conduit 300, are respectively associated with the cords 30 and between the first end 301 and the second end 302 of the cord 30. Preferably, the limiting members 210 are hooks. The first ends 301 of the cords 30 are respectively associated with two sides of the conduit 300. The second ends 302 of the cords 30 are respectively associated with two sides of the controller 20. The controller 20 can be pivoted to a first position and a second position. In the first position, the cords 30 are in a loose condition, and the flexible portion 310 of the conduit 300 can be stretched so that the lid 200 can seal the container 100. Preferably, the lid 200 is tightly fit on the container 100. In the second position, the cords 30 are in a tight condition, and the flexible portion 310 of the container 300 shortens so that the lid 200 leaves the container 100. Preferably, the flexible portion 310 has a resilient force to keep the lid 200 spacing from the container 100. Because the first ends 301 of the cords 30 are respectively associated with two sides of the conduit 300, the lid 200 can leave the container 100 steadily.
Referring to
The controller 20 includes a frame 21 and a handle 22. The frame 21 is substantially of T shaped and includes a proximal end 211 and a distal end 212. The proximal end 211 of the frame 21 has a fastener 213 connected to the proximal end 211 of the frame 21 and the aperture 12 of the second portion 102 of the base 10. Two receiving portions 214 are respectively formed on two sides of the distal end 212 of the frame 21. Preferably, a bolt is inserted through the distal end 212 of the frame 21, and a nut is screwed on the bolt. One of the receiving portions 214 is formed between the frame 21 and a head of the bolt. The other receiving portion 214 is formed between the frame 21 and the nut. The handle 22, which is connected to the proximal end 211 of the frame 21, crosses over the distal end 212 of the frame 21.
The second ends 302 of the cords 30 are respectively wound on the receiving portion 214. The cord 30 can be a steel rope or a chain.
Referring to
Referring to
The controller 20a can be rotated to a first position and a second position. While the controller 20a is clockwise rotated to the first position, the fastener 211a is rotated to unwind the second ends 302 of the cords 30 by operating the handle 22a. In the meanwhile, the first end 301 and second end 302 of the cords 30 are in the loose condition. A first length La1 is defined between the first end 301 of the cord 30 and the limiting member 210. In the meanwhile, the flexible portion 310 of the conduit 300 is stretched, and the lid 200 seals the container 100.
While the controller 20a is counter-clockwise rotated to the second position, the fastener 211a is rotated to wind the second ends 302 of the cords 30 by operating the handle 22a. In the meanwhile, the first end 301 and second end 302 of the cords 30 are in the tight condition. A second length La2 is defined between the first end 301 of the cord 30 and the limiting member 210. In the meanwhile, the flexible portion 310 of the conduit 300 shortens, and the lid 200 leaves the container 100.
The structure of the present invention exhibits advantages as follows:
Firstly, the dust collector of the present invention is stable; the cords 30 of the lid-opening apparatus 1 are respectively associated with two sides of the conduit 300 and limiting members 210, and the limiting members 210 are separately installed on two sides of the lid 200 and corresponding to the two sides of the conduit 300. The lid 300 can keep balance while the user operates the lid-opening apparatus.
Secondly, the dust collector of the present invention is simple and effective; the controller 20, 20a is associated with the second ends 302 of the cords 30 so that the lid-opening apparatus 1 can be easily operated by controlling the handle 22, 22a of the controller 20, 20a.
The present invention has been described through the illustration of the embodiments. Those skilled in the art can derive variations from the embodiments without departing from the scope of the present invention. Hence, the embodiments shall not limit the scope of the present invention defined in the claims.
