U.S. patent application number 13/386917 was filed with the patent office on 2012-05-17 for shift box for screed box and bead dispenser box deployment.
This patent application is currently assigned to GRACO MINNESOTA INC.. Invention is credited to Roland M. Bedard, Steven H. Fredrickson, James C. Schroeder, Thomas L. Triplett.
Application Number | 20120121332 13/386917 |
Document ID | / |
Family ID | 43544847 |
Filed Date | 2012-05-17 |
United States Patent
Application |
20120121332 |
Kind Code |
A1 |
Fredrickson; Steven H. ; et
al. |
May 17, 2012 |
SHIFT BOX FOR SCREED BOX AND BEAD DISPENSER BOX DEPLOYMENT
Abstract
A thermoplastic line striper has a shift box assembly (10) which
guides the screed box (12) and bead dispenser box (14) to following
positions: 1) the deployed position where the screed box (12) is
down and screed gate (18) is open and the bead box dispenser wheel
is engaged; 2) non-deployed and down on ground where the screed box
(12) is down, the screed gate (18) is closed and the bead box (14)
dispenser wheel is disengaged; and 3) non-deployed and raised off
the ground where the screed box (12) is raised up, the screed gate
(18) is closed and the bead box dispenser (14) wheel is disengaged.
In this third position, the stick shift (20) is locked for
transport mode by hooking it behind hook (22) in shift plate
(24).
Inventors: |
Fredrickson; Steven H.;
(Minneapolis, MN) ; Schroeder; James C.; (Ramsey,
MN) ; Triplett; Thomas L.; (Rockford, MN) ;
Bedard; Roland M.; (Lindstrom, MN) |
Assignee: |
GRACO MINNESOTA INC.
Minneapolis
MN
|
Family ID: |
43544847 |
Appl. No.: |
13/386917 |
Filed: |
July 26, 2010 |
PCT Filed: |
July 26, 2010 |
PCT NO: |
PCT/US2010/043203 |
371 Date: |
January 25, 2012 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61228688 |
Jul 27, 2009 |
|
|
|
Current U.S.
Class: |
404/93 |
Current CPC
Class: |
E01C 23/16 20130101;
E01C 23/206 20130101 |
Class at
Publication: |
404/93 |
International
Class: |
E01C 23/16 20060101
E01C023/16 |
Claims
1. A shift box assembly for use with a thermoplastic line striper
having a screed box moveable between up and down positions and a
screed gate moveable between open and closed positions, said shift
box assembly comprising: a shift lever attached to said screed box
and said screed gate; and a latch, said shift lever being moveable
between: a first position wherein said screed box is down and said
screed gate is open; a second position wherein said screed box is
down and said screed gate is closed; and a third position wherein
said screed box is up and said screed gate is closed.
2. The shift box assembly of claim 1 further comprising a bead
dispenser box having a dispenser wheel and wherein said shift lever
is further attached to said bead dispenser box: wherein in said
first position said bead box dispenser wheel is engaged; (2) and
the bead box 14 dispenser wheel is disengaged with the ground; and
wherein in said second position said bead box dispenser wheel is
disengaged from the ground.
Description
TECHNICAL FIELD
[0001] This application claims the benefit of U.S. Application Ser.
No. 61/228,688, filed Jul. 27, 2009, the contents of which are
hereby incorporated by reference.
BACKGROUND ART
[0002] Devices for applying thermal markings and striping to
roadways and the like are well known.
DISCLOSURE OF THE INVENTION
[0003] The shift box will provide a positive and repetitive means
for shifting the screed box and bead dispenser from the deployed to
the non-deployed position.
[0004] The shift box guides the screed box and bead dispenser box
to following positions: (1) the deployed position where the screed
box is down and screed gate is open and the bead box dispenser
wheel is engaged; (2) non-deployed and down on ground where the
screed box is down, the screed gate is closed and the bead box
dispenser wheel is disengaged; and (3) non-deployed and raised off
the ground where the screed box is raised up, the screed gate is
closed and the bead box dispenser wheel is disengaged. The stick
shift is locked for transport mode.
[0005] The shift box assembly for the screed box and bead box
allows the boxes of be deployed or nondeployed with one hand. The
design of the stick shift provides ergonomically friendly
positioning of operator's hand, wrist, arm and back. The guide
track of the shift box provides an effortless, accurate, positive
and repetitive positioning of both the screed box and bead box
dispenser.
[0006] These and other objects and advantages of the invention will
appear more fully from the following description made in
conjunction with the accompanying drawings wherein like reference
characters refer to the same or similar parts throughout the
several views.
BRIEF DESCRIPTION OF DRAWINGS
[0007] FIG. 1 shows a thermoplastic line striper utilizing the
instant invention.
[0008] FIG. 2 shows detail of the shift mechanism
BEST MODE FOR CARRYING OUT THE INVENTION
[0009] The shift box assembly 10 guides the screed box 12 and bead
dispenser box 14 to following positions: (1) the deployed position
where the screed box 12 is down and screed gate 18 is open and the
bead box dispenser wheel 30 is engaged with the ground; (2)
non-deployed and down on ground where the screed box 12 is down,
the screed gate 18 is closed and the bead box 14 dispenser wheel 30
is disengaged; and (3) non-deployed and raised off the ground where
the screed box 12 is raised up, the screed gate 18 is closed and
the bead box dispenser 14 wheel 30 is disengaged. In this third
position, the stick shift 20 is locked for transport mode by
hooking it behind hook 22 in shift plate 24.
[0010] When the operator is ready to use the striper 16, it is
likely in the third or transport position where the stick shift 20
is locked by hooking it behind hook 22 in shift plate 24. The
operator then pulls back slightly on shift lever 20 and moves it
laterally to unhook it and then gently allows shift lever to move
forward into the second position where the screed box 12 is down,
the screed gate 18 is closed and the bead box 14 dispenser wheel is
disengaged. When the operator is ready to stripe, he or she pushes
forward on shift lever 20 which transfers motion through linkage
members 26 and 28 to open screed gate 18. Temporary stripe stoppage
may be accomplished by pulling back a bit on shift lever 20.
[0011] It is contemplated that various changes and modifications
may be made to the shift box without departing from the spirit and
scope of the invention as defined by the following claims.
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