U.S. patent application number 10/773856 was filed with the patent office on 2005-08-11 for door state controller.
Invention is credited to Shiu, Kuang-Sheng.
Application Number | 20050172450 10/773856 |
Document ID | / |
Family ID | 34826851 |
Filed Date | 2005-08-11 |
United States Patent
Application |
20050172450 |
Kind Code |
A1 |
Shiu, Kuang-Sheng |
August 11, 2005 |
Door state controller
Abstract
A door state controller comprises an elastic telescopic
cylinder; a telescopic rod in the telescopic cylinder; a resisting
sheet located on the telescopic rod in the telescopic cylinder; the
resisting sheet having a control sheet and a via hole and the
telescopic rod passing through the telescopic rod; an extension
sheet with a stopper being at one end of the telescopic cylinder; a
receiving space being between the stopper and the telescopic
cylinder; the resisting sheet being installed in the receiving
space; and a resilient spring being installed between the resisting
sheet and the telescopic cylinder; thereby, the resisting sheet
being confined in the resisting sheet by the stopper without
sliding by mistake; and the resilient spring being capable of
restoring the resisting sheet. By using the control sheet, stopper
and resilient spring, the state of opening a door is determined or
the door is set as an auto-close state.
Inventors: |
Shiu, Kuang-Sheng; (Chang
Hua Hsien, TW) |
Correspondence
Address: |
Kuang-Sheng Shiu
235 Chung - Ho
Box 8-24
Taipei
TW
|
Family ID: |
34826851 |
Appl. No.: |
10/773856 |
Filed: |
February 9, 2004 |
Current U.S.
Class: |
16/70 |
Current CPC
Class: |
E05F 3/221 20130101;
Y10T 16/286 20150115; E05Y 2900/132 20130101 |
Class at
Publication: |
016/070 |
International
Class: |
A45C 003/00 |
Claims
What is claimed is:
1. A door state controller comprising an elastic telescopic
cylinder; a telescopic rod movably retained to the telescopic
cylinder; a resisting sheet located on the telescopic rod in the
telescopic cylinder; the resisting sheet having a control sheet and
a via hole and the telescopic rod passing through the telescopic
rod; the telescopic cylinder being fixed to a doorframe and a
doorplate using a doorframe positioning seat and a doorplate
positioning seat at two sides; an extension sheet with a stopper
located near one end of the telescopic cylinder; a receiving space
being formed between the stopper and the telescopic cylinder; the
resisting sheet being installed in the receiving space; and a
resilient spring being installed between the resisting sheet and
the telescopic cylinder; thereby, the resisting sheet being
confined in the resisting sheet by the stopper without sliding by
mistake; and the resilient spring being capable of restoring the
resisting sheet to be in a vertical state; wherein by using the
control sheet, stopper and resilient spring, the state of opening a
door is determined or the door is set as an auto-close state.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to doors, and more particular
to a door state controller having a receiving space between a
telescopic rod cylinder and a stopper. The receiving space serves
to receive a resisting sheet and a resilient spring so that the
resisting sheet will not move by mistake. Thus the angle about the
opening of the door is controlled precisely.
BACKGROUND OF THE INVENTION
[0002] The door state controller is a device for controlling the
door opening state so that the door is controlled in an open state,
but not close automatically or in an open state, while close
automatically.
[0003] With reference to FIGS. 1 and 2, the door state controller
comprises an elastic telescopic cylinder 1. The telescopic cylinder
1 has a telescopic rod 2. The telescopic rod 2 will extend out as a
pull force is acted thereon, and will return to an original
position by an internal resilient force as the pull force
disappears. The telescopic rod 2 has a resisting sheet 3. The
resisting sheet 3 has a control sheet 4 and a via hole 5. In use,
the telescopic cylinder 1 is fixed to a doorframe 8 and a doorplate
9 using a doorframe positioning seat 6 and a doorplate positioning
seat 7 at two sides.
[0004] In operation in a state of closing door automatically
without setting the door opening angle, referring to FIG. 2A, the
door (illustrated by dashed lines) is opened, the telescopic rod 2
of the telescopic cylinder 1 is prolonged. After persons pass
through the door, if no force is acted to the doorplate 9, the
doorplate 9 closes by the resilient force of the telescopic rod 2.
When it is desired to retained the door in an opening state, with
reference to FIG. 2B and FIG. 2C, the control sheet 4 is controlled
by a finger so that the resisting sheet 3 slides to a desired
angle. The telescopic cylinder 1 will extends to a position set by
the resisting sheet 3. One end of the telescopic cylinder 1 will
resist against the control sheet 4 so that the resisting sheet 3
generates a slop angle .theta.. The resisting sheet 3 has an effect
of stopping so that the telescopic cylinder 1 and telescopic rod 2
will not resilient and thus retain to the extend lengths so as to
retain in the state shown in FIG. 2B, namely, the door retains in
an open state. Moreover, when desire to release the door plate to
return to a state of closing door automatically, the control sheet
4 is controlled by fingers so that the resisting sheet 3 will not
inclined further (to be vertical to the telescopic rod 2). Thereby,
the telescopic cylinder 1 can move forwards so that the telescopic
rod 2 is reduced into the telescopic cylinder 1. Although above
mentioned prior art can control the door opening angle so that the
door can return to the effect of auto closing effect. However, the
prior art has the following defect:
[0005] 1. When the resisting sheet 3 is set to have a desired
opening angle, the resisting sheet 3 slides by finger. The
operation is inconvenient.
[0006] 2. When the setting is released, the door is returned to an
auto-closing state, the resisting sheet 3 must be slid to the
distal end (the doorframe positioning seat 6, as shown in FIG. 2A).
The operation is inconvenient.
[0007] 3. The setting and releasing of the resisting sheet 3 must
be executed by hands. However, at this moment, the telescopic
cylinder 1 has a telescopic pull force, it is often that the
telescopic cylinder 1 will move toward to the resisting sheet 3 so
as to clamp and hurt the finger (since the finger is positioned on
the control sheet 4 and thus the telescopic cylinder 1 resists
against the control sheet 4).
[0008] 4. Since the resisting sheet 3 is not confined, when the
setting is released, the sliding of the resisting sheet 3 will have
some error so that door is not closed completely.
SUMMARY OF THE INVENTION
[0009] Accordingly, the primary object of the present invention is
to provide a door state controller having a receiving space between
a telescopic rod cylinder and a stopper. The receiving space serves
to receive a resisting sheet and a resilient spring so that the
resisting sheet will not move by mistake. Thus the angle about the
opening of the door is controlled precisely.
[0010] Another object of the present invention is to provide a door
state controller the operations of setting the angle of the opening
of the door and of releasing the setting state can be performed
rapidly.
[0011] To achieve above objects, the present invention provides a
door state controller. The controller comprises an elastic
telescopic cylinder; a telescopic rod in the telescopic cylinder; a
resisting sheet located on the telescopic rod in the telescopic
cylinder; the resisting sheet having a control sheet and a via hole
and the telescopic rod passing through the telescopic rod; an
extension sheet with a stopper being at one end of the telescopic
cylinder; a receiving space being between the stopper and the
telescopic cylinder; the resisting sheet being installed in the
receiving space; and a resilient spring being installed between the
resisting sheet and the telescopic cylinder; thereby, the resisting
sheet being confined in the resisting sheet by the stopper without
sliding by mistake; and the resilient spring being capable of
restoring the resisting sheet. By using the control sheet, stopper
and resilient spring, the state of opening a door is determined or
the door is set as an auto-close state.
[0012] The various objects and advantages of the present invention
will be more readily understood from the following detailed
description when read in conjunction with the appended drawing.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] FIG. 1 is perspective view of a prior art.
[0014] FIG. 2 shows the use of the prior art, where (A) shows the
operation of auto-close door; (B) shows the positioning of a door;
(C) shows the operation of setting the angle of opening a door.
[0015] FIG. 3 is a partial cross sectional view of the present
invention.
[0016] FIG. 4 show the uses of the present invention, where (A)
shows the operation of positioning; (B) shows the operation of
auto-close and (C) shows the front schematic view of adjustment of
positioning.
DETAILED DESCRIPTION OF THE INVENTION
[0017] In order that those skilled in the art can further
understand the present invention, a description will be described
in the following in details. However, these descriptions and the
appended drawings are only used to cause those skilled in the art
to understand the objects, features, and characteristics of the
present invention, but not to be used to confine the scope and
spirit of the present invention defined in the appended claims.
[0018] With reference to FIGS. 3 and 4, the door state controller
comprises an elastic telescopic cylinder 1.
[0019] The telescopic cylinder 1 has a telescopic rod 2. The
telescopic rod 2 has a resisting sheet 30. The resisting sheet 30
has a control sheet 31 and a via hole. The telescopic cylinder 1 is
fixed to a doorframe 6 and a doorplate (as those shown in FIG. 2)
using a doorframe positioning seat 6 and a doorplate positioning
seat 70 at two sides.
[0020] An extension sheet 10 with a stopper 11 is at one end of the
telescopic cylinder 1. A receiving space H is formed between the
stopper 11 and the telescopic cylinder 1. The resisting sheet 30 is
installed in the receiving space H.
[0021] A resilient spring 20 is installed between the resisting
sheet 30 and the telescopic cylinder 1. Thereby, the resisting
sheet 30 is confined in the resisting sheet 3 by the stopper 11
without sliding by mistake; and the resilient spring 20 is capable
of restoring the resisting sheet 30 to be in a vertical state.
[0022] The uses, effects and advantages of the present invention
will be described herein.
[0023] With reference to FIG. 4A, an operation of the present
invention is illustrated, where the present invention is used as a
position for setting an opening angle to a door. The control sheet
31 is controlled so that the third thread 13 to be in a tilt angle.
The end of the telescopic cylinder 1 resists against the control
sheet 31 so that the resisting sheet 30 is in a tilting state due
to being buckled by the telescopic cylinder 1 and the resilient
spring 20 is compressed at one side. Therefore, the telescopic
cylinder 1 and telescopic rod 2 will not be compressed to reduce
the length. The doorplate is retained at the angle. When it is
desired to release the setting so that the door can be closed
automatically, as shown in FIG. 4B, the resisting sheet 30 is
pushed away slightly so that the telescopic cylinder 1 moves away
slightly so as not to resist against the control sheet 31. The
resisting sheet 30 will be pushed away by the resilient force of
the resilient spring 20 to resist against the stopper 11. By the
resilient force of the resilient spring 20, the resisting sheet 30
is retained at that state without inclination. Thus the telescopic
cylinder 1 and telescopic rod 2 can telescopically move freely.
After one passes through the door, the door closes automatically.
When it is desired to set the opening of the door, it is only
necessary to set the resisting sheet 30 to be inclined by
controlling the control sheet 31 using fingers. Thereby, the
control sheet 31 can stop the telescopic rod 2 to be at that
position.
[0024] Advantages of the present invention will be described
here.
[0025] It is only necessary to control the orientation of the
control sheet 31 by fingers, the angle of the door can be set. By
the resilient force of the resilient spring 20, the control sheet
31 will not be buckled. Thereby, the user of the present invention
is very convenient.
[0026] When it is desired to set the door at a predetermined
opening, it is only necessary to set the control sheet 31 in a tilt
angle so that the control sheet 4 is buckled. Thus the use of the
present invention is very convenient.
[0027] Since the resilient spring 20 is used to resist against the
resisting sheet 30 by the elastic force thereof, the resisting
sheet 30 is controlled rapidly. It is unnecessary to the control
the resisting sheet 30 by fingers for a longer time. Thus the
fingers will not be clamped by mistake and thus is hurt.
[0028] The control sheet 31 is confined within the receiving space
H. The control sheet 31 is controlled by the elastic force of the
resilient spring 20. Thereby, the resisting sheet 3 will not slide
by mistake. Thus the operation of "auto-closing" and "retaining in
a set angle" can be performed.
[0029] The present invention is thus described, it will be obvious
that the same may be varied in many ways. Such variations are not
to be regarded as a departure from the spirit and scope of the
present invention, and all such modifications as would be obvious
to one skilled in the art are intended to be included within the
scope of the following claims.
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