BACKGROUND OF THE INVENTION
1. Field of Invention
The invention relates to a hand puller and, in particular, to the structure of a hand puller that stores a band.
2. Related Art
FIG. 9 shows the structure of a conventional hand puller. Its body 90 includes a base 91 and a handle 92. The base 91 is provided with a winding axle 93. When binding an object, one lets the band 94 go through the winding axle 93. In accord with the size of the object, the extra band 940 is pulled out. The user then uses the handle 92 to tighten the band 94 so that the object is tightly bundled. The extra band 940 mentioned above is usually collected and tied outside the tightened band 94 or directly put in the cart of a truck (not shown). Aside from a bad appearance, the extra band 940 may become loose and fall out of the car.
PROC Pat. No. 200680001004.5 discloses a cargo safety protection device, which is one embodiment of the hand puller. As shown in its FIG. 1b, the band 4 is winded and stored around a storage axle 6. Although winding the band 4 around the storage axle 6 can prevent it from getting loose, the volume of this structure is too large. One also needs to design an appropriate structure for the band 4 to wind around or be released from the storage axle 6. Therefore, such a device has a higher production cost. The large volume of the winded band 4 is inconvenient for the user to operate.
It is therefore an objective of the invention to solve the aforementioned problems in the conventional hand puller.
SUMMARY OF THE INVENTION
An objective of the invention is to provide a hand puller for storing a band that has simple structure and small volume. In comparison with the conventional hand puller, the invention has the advantages of lower cost and convenience in use.
To achieve the above-mentioned objective, the invention includes:
a body containing at least a base whose one end is provided with a winding axle having a ratchet driven to rotate the winding axle;
a long band whose one end is connected with a first hook and whose other end goes through the winding axle of the body to wind around the winding axle as the winding axle rotates;
a second hook containing a connecting part to connect with the end of the base without the winding axle and a hook part at the end of the connecting part; and
at least one band structure having a belt and at least one buckle, with one end of the belt fixed to the buckle and the other end thereof winding around the connecting part and going through the buckle so that the other end is fixed by the buckle after adjusting the length.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features, aspects and advantages of the invention will become apparent by reference to the following description and accompanying drawings which are given by way of illustration only, and thus are not limitative of the invention, and wherein:
FIG. 1 is a three-dimensional view of the hand puller according to a first embodiment of the invention;
FIG. 2 is a three-dimensional exploded view of the buckle in the first embodiment;
FIG. 3 is a schematic view of collecting the extra band according to the first embodiment;
FIG. 4 shows the action of tightening the band with respect to the buckle according to the first embodiment;
FIG. 5 is a schematic view showing that the band is positioned by the buckle after it is tightened according to the first embodiment;
FIG. 6 is a schematic view showing that the extra band is collected within a short band according to the first embodiment;
FIG. 7 is a schematic view showing that the extra band is collected within a short band according to the second embodiment of the invention;
FIG. 8 is a schematic view showing that the extra band is collected within a short band according to the third embodiment of the invention; and
FIG. 9 is a schematic view of the usage of a conventional hand puller.
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be apparent from the following detailed description, which proceeds with reference to the accompanying drawings, wherein the same references relate to the same elements.
Please refer to FIGS. 1 to 6 for a first embodiment of the invention. In this embodiment, the hand puller for storing a band includes a body 1, a long band 2, a short band 3, and a binding structure composed of a belt 4 and a buckle 5, as shown in FIG. 1.
As shown in FIG. 1, the body 1 includes a base 10 and a handle 11. One end of the base 10 is provided with a winding axle 12. Both ends of the winding axle 12 are connected with a ratchet 13, respectively. The ratchets 13 are driven by the handle 11 to rotate the winding axle 12. An axle bar 14 is provided on the end of the base 10 opposite to the winding axle 12.
As shown in FIG. 1, one end of the long band 2 is connected with a first hook tool (not shown). The other end of the long band 2 goes through the winding axle 12 of the body 1. As the winding axle 12 rotates, the long band 2 is winded around the winding axle 12.
As shown in FIG. 1, the short band 3 has a fixed length. One end of the short band 3 is connected to the axle bar 14 of the body 1, and the other end thereof is connected with a head section 30. The head section 30 is integrally formed with a hook part 31. The short band 3, the head section 30, and the hook part 31 together form a connecting part. Both ends of the short band 3 have a through hole 32, respectively. The axle bar 14 of the body 1 goes through one of the through holes 32, and the head section 30 goes through the other through hole 32.
As shown in FIG. 1, one end of the belt 4 enters one side of the short band 3 and goes out from the other side of the short band 3, in the direction perpendicular to the short band 3. One end of the belt 4 is fixed to the buckle 5. The other end of the belt 4 goes through the buckle 5, and gets fixed by the buckle 5 after the length thereof is adjusted.
As shown in FIGS. 2 and 4, the buckle 5 in this embodiment includes a base 50 and a positioning element 51. The positioning element 51 can pivotally rotate within the base 50. One end of the base 50 has an axle bar 500. The other end thereof has a stopping part 501. The positioning element 51 is pivotally installed between the axle bar 500 and the stopping part 501 of the base 50 using an axle element 510. The positioning element 51 includes a tugging part 511 and a pressing part 512. A torsional spring 513 is mounted on the axle element 510. The torsional spring 513 has two end feet 513a, one of which urges against the base 50 and the other urges against the pressing part 512. One end of the belt 4 is connected to the axle bar 500 of the base 50. The belt 4 in this embodiment goes through the center of the short band 3 between the two through holes 32. Moreover, the belt 4 and the short band 3 are fixed in stitches.
As shown in FIG. 3, after the long band 2 of the hand puller is winded around the winding axle 12 and tightened, the extra band 20 outside the winding axle 12 can be collected and attached to the surface 33 of the short band 3 that is facing outside. As shown in FIGS. 4 and 5, the end of the belt 4 different from the one in connection with the buckle 5 goes through between the tugging part 511 and the stopping part 501. The positioning element 51 is urged by the torsional spring 513. Therefore, the tugging part 511 pinches and fixes the belt 4 toward the stopping part 501. In this case, one only needs to tighten the end of the belt 4 different from the one in connection with the buckle 5 in order to tighten and collect the extra band 20 on the short band 3, as shown in FIG. 6. To release the extra band 20 from the short band 3, one simply presses the pressing part 512. The pressing part 512 overcomes the urging force of the torsional spring 513 and presses downward. The tugging part 11 lifts up and removes the pressing on the belt 4. The user can then release the belt 4 from the buckle 5 and release the extra band 20.
From the above description, it is easy to find that a feature of the invention is in the tying structure of the short band 3. The structure for connecting the belt 4 and the hook tool is relatively simple in comparison with the conventional hand pullers. The disclosed hand puller has a lower cost. The operation of tightening the extra band 20 is also very simple for users.
Of course, the invention has many other embodiments that only vary in details. Please refer to FIG. 7 for a second embodiment of the invention. It differs from the first embodiment in that the short band 3 in this embodiment has two tying structures as in the first embodiment. One tying structure is the belt 4 fixed to the short band 3 near one of the through holes 32 by stitches. The other tying structure is the belt 4 fixed to the short band 3 near the other through hole 32 by stitches. When the two belts 4 are tightened and positioned by the buckle 5, the extra band 20 is attached to the belt surface 33 of the short band 3 at the two through holes 32. In this embodiment, the extra band 20 is attached better to the short band, achieving the same effect as the first embodiment.
Please refer to FIG. 8 for a third embodiment of the invention. Its main difference from the first and second embodiments is also in the two tying structures on the short band 3. In this embodiment, the belt 4 of one of the tying structures movably goes through one through hole 32 of the short band 3. The belt 4 of the other tying structure movably goes through the other through hole 32 of the short band 3. When the two belts 4 are tightened and positioned by the buckle 5, the tightened extra band 20 is attached to the belt surface 33 of the short band 3 at the two through holes 32, as in the second embodiment. As in the second embodiment, the extra band 20 has better attachment with the short band than the first embodiment.
Although the invention has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternative embodiments, will be apparent to people skilled in the art. Therefore, it is contemplated that the appended claims will cover all modifications that fall within the true scope of the invention.
Patent Application
20130291353
