Adjustable dispenser for protective adhesive film
The present invention is a device for dispensing rolls of protective adhesive film having different widths. In one embodiment, the device comprises a central support assembly comprising first and second elongated members having a first longitudinal axis and a second longitudinal axis, respectively. The first longitudinal axis of the first elongated member is off-set from the second longitudinal axis of the second elongated member. The central support assembly further comprises first and second extension members each having a first portion telescopically engaged with the first and second elongated members, respectively, and a second portion. The device further comprises a right support assembly engaged with the second portion of the first extension member and comprising a film mounting roller adapted to support the first end portion of the roll of film. The device further comprises a left support assembly engaged with the second portion of the second extension member and comprising a film mounting roller adapted to support the second end portion of the roll of film. The device further comprises a handle engaged with the central support assembly. In use, the first and second extension members may be extended or retracted from the first and second elongated members, respectively, to accommodate film roll widths of 24 inches, 30 inches, 36 inches or 48 inches. At any film width, the handle is centered between the right and left support assembly.
1. A device for dispensing rolls of film having first and second end portions and different film roll widths, the device comprising:
a) a central support assembly comprising first and second elongated members having a first longitudinal axis and a second longitudinal axis, respectively; said first longitudinal axis of said first elongated member is off-set from said second longitudinal axis of said second elongated member; said central support assembly further comprising first and second extension members each having a first portion engaged with said first and second elongated members, respectively, and a second portion;
b) a right support assembly engaged with said second portion of said first extension member; said right support assembly comprising a film mounting roller adapted to support the first end portion of the rolls of film;
c) a left support assembly engaged with said second portion of said second extension member; said left support assembly comprising a film mounting roller adapted to support the second end portion of the rolls of film;
d) a handle engaged with said central support assembly; and
e) whereby said first and second extension members may be moved relative to said first and second elongated members, respectively, to accommodate the different film roll widths, and at any of the film roll widths, said handle is centered between said right support assembly and said left support assembly.
2. The device of claim 1 , wherein each of said first and second elongated members have a hollow cavity and an open end portion.
3. The device of claim 2 , wherein said first portion of said first extension member is telescopically engaged with said hollow cavity of said first elongated member.
4. The device of claim 3 , wherein said first portion of said second extension member is telescopically engaged with said hollow cavity of said second elongated member.
5. The device of claim 4 , wherein said central support assembly further comprises a first fastener mechanism operable between a first position where said first extension member is moveable relative to said first elongated member and a second position where said first extension member is fixed relative to said first elongated member.
6. The device of claim 5 , wherein said central support assembly further comprises a second fastener mechanism operable between a first position where said second extension member is moveable relative to said second elongated member and a second position where said second extension member is fixed relative to said second elongated member.
7. The device of claim 6 , wherein said second fastener mechanism comprises a plurality of spring button holes disposed in said second elongated member and a spring button disposed in said second extension member adapted to engage one of said spring button holes.
8. The device of claim 7 , wherein said plurality of spring button holes comprises a first spring button hole, a second spring button hole, a third spring button hole, and a fourth spring button hole.
9. The device of claim 8 , wherein said first spring button hole is used when the film roll width is 24 inches; said second spring button hole is used when the film roll width is 30 inches; said third spring button hole is used when the film roll width is 36 inches; and said fourth spring button hole is used when the film roll width is 48 inches.
10. The device of claim 9 , wherein said first fastener mechanism comprises a thumb screw disposed in said first elongated member; said thumb screw having a knob portion and an end portion engaged with said first extension member upon rotation of said knob portion.
11. The device of claim 10 , where said handle is removably engaged with said first elongated member.
12. The device of claim 11 , wherein said first and second elongated members are rectangular shaped.
13. The device of claim 12 , wherein said first and second extension members are rectangular shaped.
14. The device of claim 13 , wherein said first elongated member is welded to said second elongated member.
15. The device of claim 14 , wherein said second end portion of said first extension member is welded to said right support assembly.
16. The device of claim 15 , wherein said second end portion of said second extension member is welded to said right support assembly.
17. The device of claim 1 , wherein said right and left support assembly each comprise a film pressing roller adapted to support said first and second end portions of said pressing tube; respectively, said film pressing roller of said right support assembly has a length L 1 ; said film mounting roller of said left support member has a length L 2 ; said length L 1 of said film pressing roller is greater than said length L 2 of said film mounting roller; said film pressing roller of said left support assembly has a length L 3 ; said film mounting roller of said left support member has a length L 4 ; said length L 3 of said film pressing roller is greater than said length L 4 of said film mounting roller.