Membrane reel fixing device for a membrane strapping dispenser
A membrane reel fixing device for a membrane strapping dispenser includes a reel pivot having its outer circumference formed integral with three support ribs respectively connected with a convex holding plate extending along the circumference of the reel pivot. The three holding plates have their lower sides suspended in midair; therefore, when pressed diametrically, the holding plates can be elastically shifted and deformed and after a membrane reel is fitted on the reel pivot, the holding plates can firmly prop the inner wall of the central tube of the membrane reel. Different-sized membrane reels can be firmly fitted on the reel pivot by means of the holding plates that can be elastically shifted and deformed.
1. Field of the Invention
This invention relates to a membrane reel fixing device for a membrane strapping dispenser, particularly to one able to firmly fix a membrane reel in position and applicable to different-sized membrane reels.
2. Description of the Prior Art
Generally, a membrane reel has a membrane wound thereon to be released and strapped on articles so as to prevent them from swaying and falling when they are stored or transported. Nowadays, a membrane strapping dispenser is widely employed for the convenience of carrying out membrane releasing and strapping work. A conventional membrane strapping dispenser 10, as shown in
However, although the inner diameters of the central tubes of common membrane reels are fixed and similar in size, yet there is still a little difference between them. In addition, the holding plates 114 assembled on the conventional membrane strapping dispenser 10 for fixing the central tube of the membrane reel are fixed in structure and in size, inapplicable to all central tubes of membrane reel with similar sizes. As a result, it is always found that the membrane reel cannot be fitted on the reel pivot or that the membrane reel cannot be firmly fixed in position after it is fitted on the reel pivot.
SUMMARY OF THE INVENTIONThe objective of the invention is to offer a membrane reel fixing device for a membrane-strapping dispenser, provided with a reel pivot having its circumference formed integral with three support ribs extending outward axially. Each support rid is connected with a convex holding plate extending along the circumference of the reel pivot. The three holding plates have their lower sides opposite to a handle fitting rod suspended in midair; therefore, when pressed diametrically, the holding plates can be elastically shifted and deformed and after a membrane reel is fitted on the reel pivot, the holding plates are able to firmly press the inner wall of the central tube of the membrane reel. Thus, different-sized membrane reels can be firmly fitted on the reel pivot of the membrane strapping dispenser of this invention by means of the holding plates that can be elastically shifted and deformed.
BRIEF DESCRIPTION OF DRAWINGSThis invention will be better understood by referring to the accompanying drawings, wherein:
A preferred embodiment of a membrane reel fixing device for a membrane strapping dispenser in the present invention, as shown in
The reel pivot 20 is formed with a hollow shaft 21 having the circumference of one end extending outward to form a stopping annular surface 22 having one side extending outward diametrically and forming a stopping rim 23. The hollow shaft 21 is connected integrally with the handle fitting rod 30. The membrane 52 on the membrane reel 50 can be released for strapping after the central tube of the membrane reel 50 is firmly fitted on the reel pivot 20, as shown in
Further, the hollow shaft 21 of the reel pivot 20 has its outer circumferential surface formed integral with three support ribs 24 protruding outward and spaced apart equidistantly. Each support rib 24 has its upper edge formed with a convex holding plate 25 extending along the circumference of the reel pivot 20 and having its inner intermediate portion connected with the support rib 24. Each holding plate 25 has its upper end protruding out of the support rib 24 so that the holding plates 25 can be elastically pressed to move inward for facilitating fitting a membrane reel 50 on the reel pivot 20. In addition, each holding plate 25 has its opposite outer walls respectively and axially fixed with a tightening rib 251 protruding outward to exceed the inner diameter of the central tube 51 of the membrane reel 50 and each tightening rib 251 of the holding plate 25 is formed with an arc-shaped upper edge 252 for closely pushing against the inner wall of the central tube 51 of the membrane reel 50 fitted thereon. Each tightening ribs 251 has its insert end formed with a guiding slope 253 for smoothly guiding the central tube 51 of the membrane reel 50 to be fitted on the reel pivot 20. Furthermore, the holding plates 25 have their lower sides opposite to the handle fitting rod 30 separated from the stopping rim 23 and suspended in midair. Thus, when pressed inward diametrically, the holding plates 25 can be elastically shifted and deformed to closely push against the inner wall of the central tube 51 after the membrane reel 50 is fitted on the reel pivot 20.
In using, as shown in
As can be understood from the above description, the tightening ribs 251 of the holding plates 25 of the membrane strapping dispenser of this invention can be elastically adjusted to move bias in accordance with different sizes of the central tubes 51 of membrane reels 50. Therefore, the central tubes 51 of membrane reels 50 with a little difference in size can be firmly fitted on the reel pivot 20 of the membrane strapping dispenser for carrying out releasing and strapping work of the membrane 52.
While the preferred embodiment of the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.
Claims
1. A membrane reel fixing device for a membrane strapping dispenser comprising a reel pivot, a handle fitting rod and a movable handle, said handle fitting rod extending outward axially from said reel pivot, said movable handle pivotally fitted on said handle fitting rod, the central tube of a membrane reel firmly fitted on said reel pivot for carrying out releasing and strapping work of membrane: and,
- Characterized by said reel pivot having its outer circumference formed with three support ribs extending axially, each said support rib connected with a convex arc-shaped holding plate extending along the circumference of said reel pivot, said holding plates having their lower sides opposite to said handle fitting rod suspended in midair, said holding plates able to be elastically shifted and deformed when they are pressed diametrically, said holding plates able to closely push against the inner wall of said central tube of said membrane reel after said membrane reel is fitted on said reel pivot, different-sized membrane reels able to be fitted on said reel pivot by means of said holding plates that can be elastically shifted and deformed.
2. The membrane reel fixing device for a membrane strapping dispenser as claimed in claim 1, wherein each said holding plate has the opposite sides of its outer wall respectively and axially fixed with a tightening rib protruding outward and a little exceeding the inner diameter of said central tube of said membrane reel, said tightening ribs of said holding plates closely pushing against the inner wall of said central tube of said membrane reel after said membrane reel is fitted on said reel pivot.
3. The membrane reel fixing device for a membrane strapping dispenser as claimed in claim 2, wherein each said tightening rib is formed with an arc-shaped upper edge and has its insert end formed with a guiding slope for guiding said central tube of said membrane reel to be fitted on said reel pivot.
4. The membrane reel fixing device for a membrane strapping dispenser as claimed in claim 1, wherein said holding plates are arc-shaped plates extending along the circumference of said reel pivot and having their inner intermediate portions respectively connected with said support ribs.
5. The membrane reel fixing device for a membrane strapping dispenser as claimed in claim 1, wherein each said holding plate has its opposite ends protruding out of said support rib so as to enable the opposite ends of said holding plate to be shifted elastically for facilitating said membrane reel to be fitted on said reel pivot.
6. The membrane reel fixing device for a membrane strapping dispenser as claimed in claim 1, wherein said three support ribs are equidistantly formed on said reel pivot.
7. The membrane reel fixing device for a membrane strapping dispenser as claimed in claim 1, wherein said reel pivot, said support ribs and said holding plates are integrally connected together.
8. The membrane reel fixing device for a membrane strapping dispenser as claimed in claim 1, wherein said reel pivot is formed with a hollow shaft and three support ribs protruding outward diametrically from the outer wall of said hollow shaft.
9. The membrane reel fixing device for a membrane strapping dispenser as claimed in claim 1, wherein said reel pivot has one end opposite to said movable handle formed with a stopping annular surface extending for a preset length and having one side extending outward diametrically and forming a stopping rim.
Type: Application
Filed: Jun 13, 2005
Publication Date: Dec 14, 2006
Inventor: Hsiu-Man Chen (Taichung)
Application Number: 11/150,754
International Classification: B65H 16/02 (20060101);