Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Handle – handle component – or handle adjunct – Length adjustable pull handle for luggage or luggage cart
Reexamination Certificate
2001-06-28
2002-10-29
Will, Thomas B. (Department: 3671)
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Handle, handle component, or handle adjunct
Length adjustable pull handle for luggage or luggage cart
C190S039000, C190S115000, C280S655000, C280S655100, C280S047260
Reexamination Certificate
active
06470529
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a retractable handle assembly. More particularly, the present invention relates to a retractable handle assembly for a suitcase.
Referring to
FIGS. 1
to
4
, a conventional re-tractable handle assembly has a fixed seat
25
, a grip device
24
disposed in the fixed seat
25
, a pair of cubic blocks
260
, a pair of driven rods
26
, a pair of inner pipes
19
, a pair of middle pipes
20
, a pair of outer pipes
21
, a base seat
27
, a pair of first positioning devices
100
, and a pair of second positioning devices
100
. The fixed seat
25
has two oblong apertures
251
. The grip device
24
has a U-shaped seat
243
disposed in the fixed seat
25
, a button plate
247
disposed in the U-shaped seat
243
, two springs
248
disposed between the button plate
247
and the U-shaped seat
243
, and a cover plate
245
engaging with the button plate
247
. The U-shaped seat
243
has two downward sleeves
244
matching the oblong apertures
251
of the fixed seat
25
. The cover plate
245
has a center hole
246
. The inner pipes
19
are inserted through the downward sleeves
244
. The cubic blocks
260
are inserted in the inner pipes
19
. The base seat
27
has two upward sleeves
28
for receiving the outer pipes
21
. The driven rods
26
are inserted in the inner pipes
19
. The inner pipes
19
are inserted in the middle pipes
20
. The middle pipes
20
are inserted in the outer pipes
21
. Each of the inner pipes
19
has a circular hole
191
. Each of the middle pipes
20
has a round hole
22
. Each of the outer pipes
21
has a circular aperture
23
and a round aperture
240
. Each of the first positioning devices
100
is disposed on a bottom of the corresponding inner pipe
19
. Each of the second positioning devices
100
is disposed on a bottom of the corresponding middle pipe
20
. Each of the first and the second positioning devices
100
has a mount
1
, a cover block
6
engaging with the mount
1
, a shaft
5
, and a movable block
4
. The mount
1
has a channel
2
for receiving the movable block
4
, a hollow column
3
for receiving the shaft
5
, an inner post
7
, and a bottom groove
13
. The cover block
6
has an inner pillar
10
and a hook plate
14
. The shaft
5
has an end protrusion
9
and two lateral posts
18
. An elastic element
11
is disposed in the mount
1
and the inner post
7
is inserted in the elastic element
11
. The movable block
4
has a bottom portion
16
, a top portion
15
, two lateral slant holes
17
, and a bottom post
8
disposed on the bottom portion
16
. The hook plate
14
is inserted in the bottom groove
13
of the mount
1
. A coiled spring
12
is disposed between the inner pillar
10
and the end protrusion
9
of the shaft
5
. The lateral posts
18
are inserted through the lateral slant holes
17
of the movable block
4
. The movable block
4
moves along the channel
2
of the mount
1
. The shaft
5
moves along the hollow column
3
of the mount
1
. The movable block
4
is pushed upward by the elastic element
11
. The lateral posts
18
moves along the lateral slant holes
17
of the movable block
4
. When the button plate
247
is pressed downward, the driven rods
26
are driven to press the movable block
4
downward. Then the shaft
5
enters the hollow column
3
of the mount
1
. However, a user should press the button plate
247
forcefully.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a retractable handle assembly which can be operated easily.
Another object of the present invention is to provide a retractable handle assembly which can be assembled easily.
Accordingly, a retractable handle assembly comprises a fixed seat, a grip device disposed in the fixed seat, a pair of cubic blocks, a pair of driven rods, a pair of inner pipes, a pair of middle pipes, a pair of outer pipes, a base seat, a pair of first positioning devices, and a pair of second positioning devices. The fixed seat has two oblong apertures. The grip device has a U-shaped seat disposed in the fixed seat, a button plate disposed in the U-shaped seat, two springs disposed between the button plate and the U-shaped seat, and a cover plate engaging with the button plate. The U-shaped seat has two downward sleeves matching the oblong apertures of the fixed seat. The cover plate has a center hole. The inner pipes are inserted through the downward sleeves, The cubic blocks are inserted in the inner pipes. The base seat has two upward sleeves for receiving the outer pipes. The driven rods are inserted in the inner pipes. The inner pipes are inserted in the middle pipes. The middle pipes are inserted in the outer pipes. Each of the inner pipes has a circular hole. Each of the middle pipes has a round hole. Each of the outer pipes has a circular aperture and a round aperture. Each of the first positioning devices is disposed on a bottom of the corresponding inner pipe. Each of the second positioning devices is disposed on a bottom of the corresponding middle pipe. Each of the first and the second positioning devices has a mount, a clamp device, a hollow cube, a plug, a helical spring, and a coiled spring. The mount has two lateral slide channels, a guide channel, and an oblong hole communicating with the guide channel. The clamp device has two elastic arms and two end posts disposed on the elastic arms. The hollow cube has a chamber, a U-shaped stepped flange, an opening, two lateral slant holes, and a disk. The plug has a column and a pillar. The plug is disposed in the chamber of the hollow cube. The column is confined by the U-shaped stepped flange. The helical spring is disposed between the plug and the hollow cube. The pillar is inserted in the helical spring. The coiled spring is inserted in the guide channel of the mount. The hollow cube is inserted in the guide channel of the mount. The elastic arms are inserted in the lateral slide channels of the mount. The end posts are inserted in the lateral slant holes of the hollow cube.
REFERENCES:
patent: 5400472 (1995-03-01), Chang
patent: 5639109 (1997-06-01), Liang
patent: 5655260 (1997-08-01), Chang
patent: 5692266 (1997-12-01), Tsai
patent: 5803214 (1998-09-01), Wang
patent: 5816375 (1998-10-01), Tu
patent: 5875520 (1999-03-01), Chang
patent: 6026543 (2000-02-01), Chen
patent: 6128806 (2000-10-01), Shou-Mao
patent: 6223391 (2001-05-01), Kuo
patent: 6223392 (2001-05-01), Chang
patent: 6295698 (2001-10-01), Chang
patent: 6332241 (2001-12-01), Kuo
Pechhold Alexandar K.
Will Thomas B.
LandOfFree
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