CN104074426B - Door closer - Google Patents
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- CN104074426B CN104074426B CN201410058057.7A CN201410058057A CN104074426B CN 104074426 B CN104074426 B CN 104074426B CN 201410058057 A CN201410058057 A CN 201410058057A CN 104074426 B CN104074426 B CN 104074426B
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Abstract
The present invention provides a kind of door closer, even if in the case of using expansion absorption component, the open angle that three sections of opening and closing speed regulation power is started working also will not change.Door closer (1) has controlling organization portion (17), it by could be adjusted to control the translational speed of piston (4) along with piston (4) to mobile oil mass that move back and forth, working oil between the first grease chamber (3a) and the second grease chamber (3b), and thus the opening speed of opposite house is controlled.The hollow member (8) being positioned at spring (5) it is linked with at piston (4).Hollow member (8) possesses both connect with the first grease chamber (3a) and the second grease chamber (3b) hollow bulb (8a), prevention working oil to the check-valves (8A) of hollow bulb (8a) movement, and contains sponge rubber (10) at hollow bulb (8a) from the first grease chamber (3a).
Description
Technical field
The improvement of the door closer (door self-closing device) that the present invention relates to make the door opened slowly and automatically turn off, especially
Relate to the door closer with three sections of opening and closing speed regulation (back check) functions.
Background technology
In general, door closer possesses housing, and this housing has the closing space (grease chamber) filled for working oil, at this shell
It is configured with, in the closing space of body, the piston that can move back and forth exerted a force by spring.It addition, fill rack tooth to above-mentioned piston set
Wheel mechanism, is linked with this rotation to the little gear of this rack and pinion mechanism in the way of making rotary shaft through insertion upper-lower casing
Axle.Additionally, be linked with one end of linkage in the upper end of this rotary shaft, the other end of this linkage is opened with the door of building
The upper ledge side of oral area links.
Then, when opposite house carries out opening operation, its spinning movement is passed to rotary shaft via aforementioned link mechanism,
And then be converted to the linear motion of piston via above-mentioned rack and pinion mechanism.Thus, above-mentioned piston is in the closing space of housing
Inside move, thus compression spring, when making hands leave from Men Chu, make door by the counteracting force of this spring compressed
Slowly and automatically turn off.The work that this closing velocity flows by being adjusted valve pair and the mobile gearing of piston by speed
The flow of oil is controlled adjusting.
But, as this type of door closer, disclosed in following patent documentation 1, have a kind of door closer, its object is to prevent because of
The expansion of working oil that rises because of temperature and cause the working oil External leakage to housing, insert to the inside of spring and have solely
The expansion absorption component (sponge rubber) of vertical bubble structure.
It addition, as described in Patent Document 2, in order to prevent at the open angle from regulation to standard-sized sheet angle
The unlimited action of generation door drastically during till, recent door closer existence is attached with and is capable of making so-called three sections of opening and closings
The structure of the function (three sections of opening and closing speed regulatory functions) of speed regulation power work.By making this three sections of opening and closing speed regulation power works
Make, it is possible to prevent because of the damage of the door that door is blown by wind etc., speed of opening the door steeply rises and wall etc. collides and causes itself
Wound, the damage etc. of wall.
Possess what the grease chamber (closing space) of the door closer of above-mentioned three section opening and closing speed regulatory function was moved in grease chamber
Piston is divided into two and is divided into the first grease chamber for spring configuration and these two parts of the second grease chamber.Here, to the first grease chamber
In the inside of spring insert expansion absorption component disclosed in patent documentation 1 in the case of, the first grease chamber intrinsic pressure is because of door
Open wide time moving of piston and become the highest pressure, expansion absorption structure may be made during persistently using door closer
Part crumbles.If expansion absorption component crumbles, then expansion absorption component carries out the amount of contraction shunk and changes when door unlimited.
And, if cause the air flowed out in the first grease chamber to move to the second grease chamber via oil through because expansion absorption component crumbles
Dynamic, the open angle of the regulation that three sections of opening and closing speed regulation power is started working changes, and exists and makes three sections of opening and closing speeds regulations
Power is started working such problem at the angle less than set angle.
Citation
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2012-207440 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2007-177460 publication
Summary of the invention
Therefore, the present invention completes in view of above-mentioned existing problem points, and its problem is to provide a kind of door closer, so that
Even if using in the case of expansion absorption component, the open angle that three sections of opening and closing speed regulation power is started working also will not occur
Change.
Solution
The present invention completes to solve above-mentioned problem, and door closer 1 has: housing 2, and it possesses fills for working oil
Grease chamber 3；Piston 4, this grease chamber 3 is divided into two and is divided into the first grease chamber 3a and second these two parts of grease chamber 3b by it, and
Can reciprocatingly arrange in this grease chamber 3；Spring 5, it applies the active force of constant direction all the time to this piston 4；Piston
Drive mechanism portion, it is used for driving this piston 4；Controlling organization portion 17, its by along with moving back and forth of this piston 4
The mobile oil mass of the working oil between this first grease chamber 3a and this second grease chamber 3b could be adjusted to control the mobile speed of this piston 4
Degree, thus the opening speed of opposite house is controlled, it is characterised in that is provided with in the way of linking with this piston 4 and is positioned at this spring 5
Interior hollow member 8, this hollow member 8 possesses the hollow bulb connected with both this first grease chamber 3a and this second grease chamber 3b
Check-valves 8A, 8B that 8a, prevention working oil move to this hollow bulb 8a from this first grease chamber 3a, contains swollen at this hollow bulb 8a
Swollen absorption component 10,30,31.
Invention effect
According to the present invention, in the door closer with three sections of opening and closing speed regulatory functions, even with expansion absorption component,
It also is able to prevent the working oil External leakage to housing.
Accompanying drawing explanation
Fig. 1 is the sectional view of the door closer involved by embodiments of the present invention.
Fig. 2 is the left side view of the door closer involved by embodiments of the present invention.
Fig. 3 is the V-V sectional view of Fig. 2.
Fig. 4 is the sponge rubber illustrating present embodiment, and (A) is front view, and (B) is top view, and (C) is right view.
Fig. 5 is the figure of the opening action of the door being provided with door closer for explanation.
Fig. 6 is the sectional view of the door closer of the variation of the sponge rubber illustrating embodiments of the present invention.
Fig. 7 is the sectional view of the major part of the variation of the check-valves illustrating embodiments of the present invention, it is shown that non-return
The state that valve cuts out.
Fig. 8 is the sectional view of the major part of the variation of the check-valves illustrating embodiments of the present invention, it is shown that non-return
The state that valve is opened.
Description of reference numerals is as follows:
1 door closer
2 housings
2b embedded hole
3 grease chambeies
3a the first grease chamber
3b the second grease chamber
4 pistons
4a cavity portion
5 springs
6 first paths
7 alternate paths
7a cavity portion side path
The big path of 7b
8 hollow member
8A check-valves
8a hollow bulb
8b ball resettlement section
8c hole
8B check-valves
9 balls
10 sponge rubbers (expansion absorption component)
10a front
The 10b back side
10c Right deviation inclined-plane
10d "Left"-deviationist inclined-plane
11 check-valves
12 valve bodies
12a ball resettlement section
13 balls
14 tooth bars
15 little gears
16 rotary shafts
17 controlling organization portions
18 oil circuits
19 first oil throughs
20 second oil throughs
21 the 3rd oil throughs
22 fuel volume adjusting valves
23 end plugs
23a outer screw section
24 o-rings
30 sponge rubbers (expansion absorption component)
30a hole portion
31 sponge rubbers (expansion absorption component)
31a hole portion
40 valve seats
41 spools
41A flange part
41B side opening
41C internal path
42 o-rings
43 spacer pins
Detailed description of the invention
Hereinafter, use accompanying drawing, to for implementing preferred embodiment illustrating of the present invention.
The door closer involved by first embodiment of the present invention is such as fixedly installed on the top of door, and be arranged at
The arm of frame side connects, and thus enables that and closes Men Li and three sections of opening and closing speeds regulation power work relative to door.Therefore, figure is used
1～Fig. 4 and the basic structure of the door closer involved by present embodiment is illustrated.Here, Fig. 1 is involved by present embodiment
And the sectional view of door closer, Fig. 2 is the left side view of the door closer involved by present embodiment.It addition, Fig. 3 is in Fig. 2
V-V sectional view, for convenience of description, the component such as piston is locally omitted.It addition, Fig. 4 illustrates the sponge rubber of present embodiment,
(A) being front view, (B) is top view, and (C) is right view.
The door closer 1 of present embodiment possesses: housing 2, and it possesses the grease chamber 3 filled for working oil；Piston 4, it is by oil
Room 3 is divided into two and is divided into the first grease chamber 3a and second these two parts of grease chamber 3b, and can be reciprocatingly in grease chamber 3
Arrange.Active force from the spring 5 being arranged at the first 3a side, grease chamber puts on piston 4 all the time, is not applying outside power
In the case of, piston 4 is constituted in the way of moving along the direction making the first grease chamber 3a extension.
Cavity portion 4a being internally formed the part constituting the second grease chamber 3b at piston 4.Cavity portion 4a be formed at
First path 6 of the end side (the first 3a side, grease chamber) of piston 4 connects, and with the second of another side being formed at piston 4
Path 7 connects.The hollow member 8 of tubular is formed at this hollow structure by being screwed into the screw 4b of the end side being formed at piston 4
The screw division of the base end part periphery of part 8 and be concatenated.Hollow member 8 is to have the length of regulation on the axis direction of spring 5
Mode extend, and link with piston 4 in the way of being positioned at the inside of spring 5.Hollow member 8 possesses for housing sea described later
The space i.e. hollow bulb 8a of continuous rubber 10.Hollow bulb 8a via the first above-mentioned path 6 with cavity portion 4a (second of piston 4
Grease chamber 3b) connection.It is provided with check-valves 8A in the leading section of hollow member 8, utilizes check-valves 8A to come hollow bulb 8a and first oil
Room 3a carries out connection blocking.Check-valves 8A is formed from the ball resettlement section 8b of the front end of hollow member 8 and receives movably
The ball 9 being dissolved in this ball resettlement section 8b is constituted.Hollow bulb 8a is via the hole 8c linked by hollow bulb 8a and ball resettlement section 8b
And ball resettlement section 8b and connect with the first grease chamber 3a.Door open wide during, ball 9 by the intrinsic pressure of the first grease chamber 3a to
The inwall pressing of ball resettlement section 8a, thus stop the working oil of the first 3a side, grease chamber via hollow bulb 8a and the first path 6
Flow out to the second 3b side, grease chamber.
The sponge rubber 10 of tabular it is inserted with to the hollow bulb 8a of hollow member 8.Sponge rubber 10 has separated foam structure
Making, in the case of the working oil within cause grease chamber 3 because temperature rises expands, the air in each bubble is compressed and is made sponge
Rubber 10 shrinks its volume.Owing to causing expanding of working oil to be changed absorption by the volume of sponge rubber 10 because temperature rises,
Therefore the intrinsic pressure rising of grease chamber 3, prevents from housing 2 leakage of oil.Sponge rubber 10 recovers to recover to former to room temperature along with working oil
The volume come.It should be noted that sponge rubber 10 is equivalent to the expansion absorption component of the present invention.
As shown in Figure 4, sponge rubber 10 be possess the front 10a and back side 10b of parallelogram, other faces are rectangle
Hexahedron, when to hollow member 8 hollow bulb 8a insert time possess Right deviation inclined-plane in the end of the side being positioned at piston 4 side
10c, possesses left-leaning inclined-plane 10d in the end of the opposing party of the opposition side being positioned at piston 4 side.Here, Right deviation inclined-plane 10c and "Left"-deviationist
Inclined-plane 10d is the inclined plane tilted relative to the axis of hollow member 8.The height H of sponge rubber 10 and thickness T-shaped become to compare will
Hole 8c and the aperture of the first path 6 that hollow bulb 8a and ball resettlement section 8b links are big, and the internal diameter being formed than hollow bulb 8a
Little.Owing to sponge rubber 10 has Right deviation inclined-plane 10c and left-leaning inclined-plane 10d, therefore hole 8c and the first path 6 are by sponge rubber 10
Close, without stoping the flowing of working oil.
It is formed at the alternate path 7 of another side of piston 4 by cavity portion side path 7a with than this cavity portion side path 7a
Big big path 7b is constituted, and this big path 7b is provided with check-valves 11, by this check-valves 11 to cavity portion 4a and grease chamber
3c carries out connection blocking.Check-valves 11 possesses and big valve body 12 chimeric for path 7b, in valve body 12, ball resettlement section
12a is formed in the way of connecting with cavity side path 7a and grease chamber 3c, and ball 13 is contained in ball resettlement section 12a movably.
And, ball 13 is pressed on and cavity portion side path 7a phase in door closing process by check-valves 11 by the intrinsic pressure of grease chamber 3c
Logical ball resettlement section 12a inwall also closes alternate path 7, so that the working oil of 3c side, grease chamber is not via alternate path 7
Flow out to cavity portion 4a side.
Insert to housing 2 and be fixed with not shown speed adjustment valve, in the face of by link between grease chamber 3c and cavity portion 4a
Not shown stream, is controlled the flow of working oil with the mobile gearing of piston 4, and thus the closing velocity of opposite house is carried out
Adjust.
Door closer 1 is provided with rack and pinion mechanism portion, it is possible to make the opening and closing campaign of door and piston 4 moves back and forth motion
Reciprocally change.Specifically, rack and pinion mechanism portion is set freely by the tooth bar 14 and rotary motion being fixedly installed on piston 4
The little gear 15 being placed in housing 2 is constituted, and connecting in the rotary shaft 16 being connected with housing 2 freely for the rotary motion of little gear 15 has
It is arranged at the not shown arm of frame side.Therefore, the opening and closing campaign of door is delivered to rotary shaft 16 via not shown arm, thus
Little gear 15 is made to rotate.It should be noted that rack and pinion mechanism portion is equivalent to the piston drive mechanism portion of the present invention.
Fig. 1 is shown in the door closer 1 under the state after door completely closes.And, when the power applying to open the door wide from this state
Time, transmit the power making rotary shaft 16 be rotated clockwise via arm (not shown), make little gear 15 also be rotated clockwise, with this
The tooth bar 14 of little gear 15 engagement moves towards the paper left direction of Fig. 1.Along with the action of this tooth bar 14, it is connected with tooth bar 14
Piston 4 overcome the active force of spring 5 to move to paper left direction.Piston 4 by the active force that overcomes this spring 5
Moving movement, door is put aside the power moved to closedown direction all the time and is opened.
Otherwise, when the power of the movement that door limits door from the status releasing opened wide completely, by the work applied from spring 5
Firmly, piston 4 moves towards the paper right direction of Fig. 1.By the movement of this piston 4, the tooth bar 14 being connected with piston 4 also towards
Paper right direction moves, and makes little gear 15 rotate counter-clockwise.By the rotary motion of this little gear 15, rotary shaft 16 is around the inverse time
Pin is rotated, therefore by the not shown arm being connected with rotary shaft 16 by this rotary motion transmission for make door towards
Closing the power that direction is moved, thus implement the closedown of door, when door becomes completely closed state, door closer 1 becomes shown in Fig. 1
State.According to moving back and forth of the rotary motion of above explanation, the moving movement of tooth bar 14 and little gear 15, i.e. piston 4
Opening and closing campaign with door mutually can be changed by rack and pinion mechanism portion.
As it is shown on figure 3, be provided with controlling organization portion 17 at door closer 1, this controlling organization portion 17 is by along with piston 4
Move back and forth and the mobile oil mass of working oil between the first grease chamber 3a and the second grease chamber 3b could be adjusted to control piston 4
Translational speed, thus the opening speed of opposite house is controlled.Controlling organization portion 17 possesses and is formed at housing 2 along grease chamber 3
Oil circuit 18.
Oil circuit 18 possesses three oil throughs 19,20,21 connected with grease chamber 3.And, screw togather from the lateral oil circuit of left surface 18
It is configured with fuel volume adjusting valve 22.This fuel volume adjusting valve 22 is positioned at the oil through 21 that communicates all the time with the first grease chamber 3a with its valve point
Mode configures, by fuel volume adjusting valve 22 is carried out rotation process, it is possible to realize the conducting of oil through 21, closedown, fuel volume adjusting.
Be formed in the oil through of oil circuit 18 paper being configured in Fig. 3 3b side, that is second grease chamber, right side be first lead to
Oilhole 19.This first oil through 19 be without concern door state and all the time be positioned at spring 5 arrange side opposition side second oil
The oil through that room 3b (cavity portion 4a of piston 4) turns on, when even door is closed, piston 4 is positioned at the paper rightmost side, also ties up
Hold and the state of the second grease chamber 3b conducting.
With the first adjacent formation of oil through 19 be the second oil through 20.This second oil through 20 is to be in closedown shape at door
During state be positioned at spring 5 arrange side first grease chamber 3a conducting, make piston 4 move the moving of opening direction along with door
Time the oil through closed by piston 4.
The oil through of oil circuit 18 is arranged at the leftmost side of paper and without concerning the state of door and maintaining the beginning additionally, be formed at
Eventually be positioned at spring 5 arrange side the first grease chamber 3a conducting state be the 3rd oil through 21.
In Fig. 1,23 is end plug, and 24 is o-ring.The embedded hole of the end plug 23 outer screw section 23a Yu housing 2 by making periphery
The female threaded portion 2b of 2a screws togather and chimeric with embedded hole 2a.
Above, the basic structure of the door closer 1 of present embodiment is illustrated.It follows that to present embodiment
The action of door closer 1 illustrates.Here, the figure of the opening action that Fig. 5 is the door being provided with door closer 1 for explanation.
First, when door is in and is illustrated such closed mode by reference α of Fig. 5, door closer 1 is in shown in Fig. 1
State.Now, whole oil through 19,20,21 maintenances turns on for each the first grease chamber 3a of conducting, the second grease chamber 3b
State.And, when door is by when moving in the range of representing from reference α of Fig. 5 to reference β, maintain whole leading to
The conducting state of oilhole 19,20,21, working oil is by two routes being represented by reference F1, F2 in figure 3 and from first
Grease chamber 3a is mobile to cavity portion 4a (the second grease chamber 3b) of piston 4.
Additionally, door moves, when door moves to the position represented by reference β of Fig. 5, the second oil through 20 quilt
Piston 4 is closed, and thus, reference F1 the route represented of the movement being so far capable of working oil is closed, working oil
Only become, from the first grease chamber 3a to the movement of cavity portion 4a (the second grease chamber 3b) of piston 4, the route represented by F2, open for three sections
Closing speed regulation power to start working, piston 4 makes translational speed reduce and move.Door is from being represented by reference β of Fig. 5
Position carries out door opening action to the position of door standard-sized sheet with the speed slowed down.Even if it should be noted that piston 4 is mobile complete to door
The position opened, the check-valves 8A of hollow member 8 is also constituted in the way of not contacting with end plug 23.
So, the door closer 1 of present embodiment does not insert sponge rubber 10 to the inside of the spring 5 of the first grease chamber 3a, and
To being positioned at the inside of spring 5 and linking with piston 4 and the hollow bulb 8a interpolation of hollow member 8 that together can move with piston 4
Enter sponge rubber 10.And, hollow member 8 possesses check-valves 8A, and this check-valves 8A is to the first grease chamber 3a and hollow member 8a
Hollow bulb 8a carries out connection blocking.Door open wide during, utilize check-valves 8A make working oil not from the first grease chamber 3a to
Flowing out in sky portion 8a, the movement of the piston 4 when therefore being opened wide by door, even if repeatedly becoming high pressure, hollow in the first grease chamber 3a
Also will not become high pressure in portion 8a, therefore sponge rubber 10 will not crumble.Thus, in the door closer 1 of present embodiment, three sections
The open angle that opening and closing speed regulation power is started working will not change.And, with the first grease chamber 3a and the second grease chamber 3b
The hollow bulb 8a of the hollow member 8 of both connections contains sponge rubber 10, the expansion of the working oil caused because temperature rises
Changed by the volume of sponge rubber 10 and absorb, prevent the intrinsic pressure rising of grease chamber 3 from causing from housing 2 leakage of oil.
Door closer based on the present invention is not limited to above-mentioned embodiment, it is possible in the scope described in claims
Inside carry out various deformation, improvement.Such as, as shown in Figure 6, cylindrical shape is formed as to the receiving space 8a insertion of hollow member 8
Sponge rubber 30.If making the hole portion 30a of sponge rubber 30 and the hole 8c of hollow member of cylindrical shape and the first of piston 4 lead to
Road 6 connects, then when door is closed it is easy to ensure that at the stream of working oil of hollow bulb 8a flowing such that it is able to make working oil therefrom
Sky portion 8a is smooth to the flowing of the first grease chamber 3a.
It addition, in the above-described embodiment, the check-valves 8A of the leading section being located at hollow member 8 is formed from hollow structure
The ball resettlement section 8b of the front end of part 8 and be contained in the ball 9 of this ball resettlement section 8b movably and constitute, but be not limited to
This.For instance, it is possible to use Fig. 7 and check-valves 8B as shown in Figure 8.As it is shown in fig. 7, to the hollow member 8 linked with piston 4
Hollow bulb 8a be inserted with the sponge rubber 31 of multiple cylindrical shape.The hole portion 31a of cylindric sponge rubber and the first of piston 4
Path 6 connects, and becomes the stream of working oil.Inwall in the leading section of hollow member 8 is fixed on valve seat 40 by press-in, and
Spool 41 can be provided with on the left and right directions of Fig. 7 movably relative to this valve seat 40.It is installed on the rearward end of spool 41
The two ends of spacer pin 43 are located in the groove 40a of rearward end formation of valve seat 40, and spool 41 can not be rotatable around its axis.Such as Fig. 7
Shown in, during door opens wide, spool 41 is become the most relatively move relative to valve seat 40 by the oil pressure of the first grease chamber 3a
Dynamic state, the flange part 41A of spool 41 abuts with the leading section of valve seat 40, and compresses o-ring 42 and make the side of spool 41
Hole 41B becomes the state of closedown.As shown in Figure 8, in door closing process, spool 41 is become by the oil pressure of receiving space 8a
Relative to the state of valve seat 40 relative movement to the left, it is installed on the spacer pin 43 of spool 41 and the bottom land of the groove 40a of valve seat 40
Portion abuts, and the fore-end of the flange part 41A of spool 41 and o-ring 42 and valve seat 40 becomes from, the side opening 41B of spool 41 to be opened
State, the working oil of the second 3b side, grease chamber pass through the hole portion 31a of sponge rubber, the inboard channel 41C and side opening 41B of spool 41
And move to first grease chamber's 3a effluent.That is, the side opening 41A and inboard channel 41B of spool 31 is constituted the first grease chamber 3a and second oil
The intercommunicating pore of room 3b connection.
Claims (1)
1. a door closer, has:
Housing, it possesses the grease chamber being filled with working oil；
Piston, this grease chamber is divided into two and is divided into the first grease chamber and the second grease chamber, and is arranged in this grease chamber by it
Enough move back and forth freely；
Spring, it applies the active force of constant direction all the time to this piston；
Piston drive mechanism portion, it drives this piston；
Controlling organization portion, it is by moving back and forth along with this piston and between this first grease chamber and this second grease chamber
The mobile oil mass of the working oil of movement could be adjusted to control the translational speed of this piston, and thus the opening speed of opposite house is controlled
System,
Described door closer is characterised by,
The hollow member of the inside being positioned at this spring it is provided with this piston in the way of linking,
Described hollow member possesses: the hollow bulb connected with this first grease chamber and this both the second grease chamber；Stop working oil from
The check-valves that this first grease chamber moves to this hollow bulb,
Expansion absorption component is contained at described hollow bulb,
During door opens wide, prevent from becoming described first grease chamber of high pressure because of described moving of piston by described check-valves
Interior described working oil contacts with described expansion absorption component.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-067892 | 2013-03-28 | ||
| JP2013067892A JP6006150B2 (en) | 2013-03-28 | 2013-03-28 | Door closer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104074426A CN104074426A (en) | 2014-10-01 |
| CN104074426B true CN104074426B (en) | 2016-08-17 |
Family
ID=51595992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410058057.7A Active CN104074426B (en) | 2013-03-28 | 2014-02-20 | Door closer |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6006150B2 (en) |
| CN (1) | CN104074426B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016208182B4 (en) * | 2016-05-12 | 2019-11-28 | Geze Gmbh | drive |
| JP6708852B2 (en) * | 2016-06-23 | 2020-06-10 | 日本ドアーチエック製造株式会社 | Door closer |
| CN108710274A (en) * | 2018-04-24 | 2018-10-26 | 周柳含 | A kind of automatic carbon dust tucker |
| DE102018210296B4 (en) * | 2018-06-25 | 2020-04-09 | Geze Gmbh | Drive for a door or window sash |
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| GB1214673A (en) * | 1968-03-06 | 1970-12-02 | Parkes Josiah & Sons Ltd | Improvements in or relating to door closers |
| GB2193757A (en) * | 1986-07-22 | 1988-02-17 | Newman Tonks Eng | Door closer |
| CN101469586A (en) * | 2007-12-28 | 2009-07-01 | 盖泽工业（天津）有限公司 | Driving device for leaf of door or window |
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| JPS572634Y2 (en) * | 1975-05-15 | 1982-01-18 | ||
| JPS5287846A (en) * | 1975-12-15 | 1977-07-22 | Sankyo Seiki Seisakusho Kk | Door closer |
| US5259090A (en) * | 1991-07-31 | 1993-11-09 | Emhart Inc | Fluid door closer with means to permit entrapped gases to move |
| JPH0643184U (en) * | 1992-11-07 | 1994-06-07 | リョービ株式会社 | Automatic door closing device for sliding doors |
| JP4012326B2 (en) * | 1998-12-21 | 2007-11-21 | 美和ロック株式会社 | Door closer |
| JP3349675B2 (en) * | 1998-12-25 | 2002-11-25 | リョービ株式会社 | Door closer |
| JP4753712B2 (en) * | 2005-12-27 | 2011-08-24 | リョービ株式会社 | Door closer |
| JP2008038389A (en) * | 2006-08-02 | 2008-02-21 | Miwa Lock Co Ltd | Door closer |
| TWI345607B (en) * | 2008-06-27 | 2011-07-21 | Taiwan Fu Hsing Ind Co Ltd | Automatic door closer |
| JP5555198B2 (en) * | 2011-03-30 | 2014-07-23 | リョービ株式会社 | Door closer |
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- 2013-03-28 JP JP2013067892A patent/JP6006150B2/en active Active
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- 2014-02-20 CN CN201410058057.7A patent/CN104074426B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2994906A (en) * | 1958-01-08 | 1961-08-08 | Yale & Towne Mfg Co | Door closer with expansion chamber |
| GB1214673A (en) * | 1968-03-06 | 1970-12-02 | Parkes Josiah & Sons Ltd | Improvements in or relating to door closers |
| GB2193757A (en) * | 1986-07-22 | 1988-02-17 | Newman Tonks Eng | Door closer |
| CN101469586A (en) * | 2007-12-28 | 2009-07-01 | 盖泽工业（天津）有限公司 | Driving device for leaf of door or window |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104074426A (en) | 2014-10-01 |
| JP2014190101A (en) | 2014-10-06 |
| JP6006150B2 (en) | 2016-10-12 |
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