One-way pepper grinding tool

Details One-way pepper grinding tool One-way pepper grinding tool

2001-04-04

2003-01-21

Rosenbaum, Mark (Department: 3725)

Solid material comminution or disintegration

Apparatus

Hand support comminutor

Reexamination Certificate

active

06508425

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to a pepper grinding tool which has an inner grinding part turnably received in an outer grinding part to grind pepper in between, and particularly to one, of which the inner grinding part can only turn in one direction.
Referring to
FIGS. 7 and 8
, a conventional pepper tool, with British Patent No. 2256378, has a pressing block
10
, a tooth bar
20
, a gear wheel
30
, a gear cluster
301
, a shaft
40
, an inner grinding part
50
and an outer grinding part
60
.
The pressing block
10
is depressable to move the toothed bar
20
downwards; when the pressing block
10
is released, the toothed bar
20
is biased up by an elastic member. The gear wheel
30
is connected to the toothed bar
20
and the gear cluster
301
. The shaft
40
is connected to gear cluster
301
and the inner grinding part
50
such that when the toothed bar
20
is moved up and down, the inner grinding part
50
can be turned by means of the gear wheel
30
, the gear cluster
301
and the shaft
40
.
The inner grinding part
50
is disposed in the outer grinding part
60
which is fixedly disposed in the pepper grinding tool.
Thus, the inner grinding part
50
can turn relative to the outer grinding part
60
to grind pepper in between.
However, the pepper grinding tool is found to have a disadvantage that the inner grinding part
50
turns in one direction when the pressing block
10
is depressed, and the other direction when the pressing block is released, making the grinding movement not relatively smooth, especially when there are relatively big pepper granules between the grinding parts
50
and
60
.
SUMMARY OF THE INVENTION
Therefore, it is a main object of the present invention to provide a pepper grinding tool, of which the inner grinding part can turn relative to the outer grinding part in only one direction to make a relatively smooth grinding movement.
The pepper grinding tool of the present invention includes a housing member, a grinding assembly and a one-way member.
The grinding assembly has an inner grinding part and an outer grinding part. The outer grinding part is fixedly received in the housing member. The inner grinding part is turnably received in the outer part for permitting pepper to be ground in between.
The one-way member includes a main body, a ratchet, and a turning part. A shaft is passed through the main body and the ratchet, and is secured to the turning part from an upper end. The shaft is connected to the inner grinding part from a lower part. The turning part is disposed between teeth on an inner side of the ratchet; the ratchet is secured to the main body; the teeth of the ratchet engage the turning part when the ratchet turns clockwise in order for the inner grinding part to turn to grind pepper, the teeth can't engage the turning part when the ratchet turns counterclockwise.
The main body of the one-way member is operationally connected to an operation lever and a torsional spring such that the main body can be turned by depressing and releasing the lever repeatedly. By depressing and releasing the lever repeatedly, the turning part, the shaft, and the inner grinding part connected to the turning part can turn and in only one direction in the pepper grinding movement.


REFERENCES:
patent: 4374574 (1983-02-01), David
patent: 5082190 (1992-01-01), Chen
patent: 5180114 (1993-01-01), Chen

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