CN104074426A - Door closer - Google Patents
Door closer Download PDFInfo
- Publication number
- CN104074426A CN104074426A CN201410058057.7A CN201410058057A CN104074426A CN 104074426 A CN104074426 A CN 104074426A CN 201410058057 A CN201410058057 A CN 201410058057A CN 104074426 A CN104074426 A CN 104074426A
- Authority
- CN
- China
- Prior art keywords
- grease chamber
- piston
- door
- oil
- door closer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention provides a door closer. When the expansion absorption member is used, the door opening angle cannot be changed by adopting three-segment opening/closing speed adjusting force. The door closer (1) is provided with a control mechanism part (17), which can be used to adjust the moving speed of a piston (4) by adjusting the moving oil mass of the working oil between a first oil chamber (3a) and a second oil chamber (3b) and can carry out the reciprocating motion of the piston (4), and therefore the door opening speed can be controlled. The piston (4) is connected with a hollow member (8) in a spring (5). The hollow member (8) is provided with a hollow part (8a) communicated with the first oil chamber (3a) and the second oil chamber (3b), a check valve (8A) capable of preventing the working oil flowing from the first oil chamber (3a) to the hollow part (8a), and a foamed rubber (10) accommodated in the hollow part (8a).
Description
Technical field
The present invention relates to make the door opened slowly and the improvement of the door closer of automatically closing (door self-closing device), especially relate to and there is the door closer that three sections of opening and closing speeds regulate (back check) functions.
Background technology
In general, door closer possesses housing, and this housing has the enclosure space (grease chamber) of filling for working oil, disposes by the spring energized piston that can move back and forth in the enclosure space of this housing.In addition, to above-mentioned piston assembling rack and pinion mechanism, to the pinion of this rack and pinion mechanism so that axis of rotation connects the mode of inserting upper-lower casing links and have this axis of rotation.In addition, in the upper end of this axis of rotation, link the one end that has linkage, the upper ledge side of the door opening portion of the other end of this linkage and building links.
Then, when opposite house carries out opening operation, its spinning movement is passed to axis of rotation via aforementioned link mechanism, and then via above-mentioned rack and pinion mechanism, is converted to the rectilinear motion of piston.Thus, above-mentioned piston moves in the enclosure space of housing, and Compress Spring thus, when hand is left from Men Chu, slowly and automatically closes door by the reaction force of this compressed spring.This closing velocity is controlled to adjust by adjusted the flow of valve mobile working oil pair with the mobile interlock of piston by speed.
Yet, as this type of door closer, in following patent documentation 1, disclose a kind of door closer, its object is that the expansion that prevents the working oil because rising because of temperature causes working oil to leak to the outside of housing, inserts the expansion absorption member (sponge rubber) with separated foam structure to the inside of spring.
In addition, as recorded in following patent documentation 2, in order to prevent at the open angle from regulation, till produce the unlimited action of door sharply during standard-sized sheet angle, recent door closer exists to be attached with to realize and makes so-called three sections of opening and closing speeds regulate the structure of the function (three sections of opening and closing speed regulatory functions) of power work.By these three sections of opening and closing speed adjusting power are worked, can prevent because of door by the speed of blowing, open the door such as wind sharply rise, with the bump damage of the door that causes itself, the damage of wall etc. such as wall.
Possessing the piston Bei grease chamber, grease chamber's (enclosure space) of the door closer of three sections of above-mentioned opening and closing speed regulatory functions moving is divided into two and is divided into the first grease chamber and these two parts of the second grease chamber for spring configuration.At this, in the situation that insert the disclosed expansion absorption member of patent documentation 1 to the inside of the spring in the first grease chamber, the moving of piston of the interior pressure of the first grease chamber during because of door unlimited becomes very high pressure, in continuing to use the process of door closer, may make expansion absorption member crumble.If expansion absorption member crumbles, the amount of contraction that expansion absorption member shrinks changes when door unlimited.And, if cause the air flowing out in the first grease chamber to move to the second grease chamber via oil through because expansion absorption member crumbles, the open angle of the regulation that three sections of opening and closing speed adjusting power is started working changes, and exists and makes three sections of opening and closing speeds regulate power such problem of starting working at the angle place less than set angle.
Technical literature formerly
Patent documentation
Patent documentation 1: TOHKEMY 2012-207440 communique
Patent documentation 2: TOHKEMY 2007-177460 communique
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, even so that in the situation that using expansion absorption member, the open angle that three sections of opening and closing speed adjusting power is started working can not change yet.
Solution
The present invention completes in order to solve above-mentioned problem, and door closer 1 has: housing 2, and it possesses the grease chamber 3 of filling for working oil, piston 4, Qi Jianggai grease chamber 3 is divided into two and is divided into the first 3a of grease chamber and second these two parts of the 3b of grease chamber, and can reciprocatingly arrange in Gai 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 for driving this piston 4, controlling organization portion 17, its mobile oil mass adjustment by the working oil between this 3a of the first grease chamber and the 3b of this second grease chamber to being accompanied by moving back and forth of this piston 4 is controlled the translational speed of this piston 4, the opening speed of opposite house is controlled thus, it is characterized in that, to be provided with the mode of these piston 4 links the hollow member 8 that is positioned at this spring 5, this hollow member 8 possesses and the 3a of this first grease chamber and the two hollow bulb 8a being communicated with of the 3b of this second grease chamber, the flap valve 8A that stops working oil to move to this hollow bulb 8a from the 3a of this first grease chamber, 8B, at this hollow bulb, 8a contains expansion absorption member 10, 30, 31.
Invention effect
According to the present invention, in thering is the door closer of three sections of opening and closing speed regulatory functions, even if use expansion absorption member, also can prevent that working oil from leaking to the outside of housing.
Accompanying drawing explanation
Fig. 1 is the sectional view of the related door closer of embodiments of the present invention.
Fig. 2 is the left side view of the related door closer of embodiments of the present invention.
Fig. 3 is the V-V sectional view of Fig. 2.
Fig. 4 is the sponge rubber that present embodiment is shown, and (A) is front view, is (B) top view, is (C) right view.
Fig. 5 is for the figure of the opening action of the door that is provided with door closer is described.
Fig. 6 is the sectional view of door closer of variation that the sponge rubber of embodiments of the present invention is shown.
Fig. 7 is the sectional view of major part of variation that the flap valve of embodiments of the present invention is shown, and the state of closure of check ring is shown.
Fig. 8 is the sectional view of major part of variation that the flap valve of embodiments of the present invention is shown, and the state that flap valve is opened is shown.
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
7b MP major path
8 hollow member
8A flap valve
8a hollow bulb
8b ball resettlement section
8c hole
8B flap valve
9 balls
10 sponge rubbers (expansion absorption member)
10a is positive
The 10b back side
10c Right deviation inclined-plane
The left-leaning inclined-plane of 10d
11 flap valve
12 valve bodies
12a ball resettlement section
13 balls
14 tooth bars
15 pinions
16 axis of rotation
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 type rings
30 sponge rubbers (expansion absorption member)
30a hole portion
31 sponge rubbers (expansion absorption member)
31a hole portion
40 valve seats
41 spools
41A flange part
41B side opening
41C internal path
42 O type rings
43 spacer pins
The specific embodiment
Below, use accompanying drawing, to of the present inventionly preferred embodiment describing for implementing.
The related door closer of the first embodiment of the present invention is for example fixedly installed on the top of door, and is connected with the arm that is arranged at frame side, can make thus to close Men Li and the work of three sections of opening and closing speed adjusting power with respect to door.Therefore, use Fig. 1～Fig. 4 and the basic structure of the related door closer of present embodiment is described.At this, Fig. 1 is the sectional view of the related door closer of present embodiment, and Fig. 2 is the left side view of the related door closer of present embodiment.In addition, Fig. 3 is the V-V sectional view in Fig. 2, and for convenience of explanation, the members such as piston are omitted by part.In addition, Fig. 4 illustrates the sponge rubber of present embodiment, is (A) front view, is (B) top view, is (C) right view.
The door closer 1 of present embodiment possesses: housing 2, and it possesses the grease chamber 3 of filling for working oil; Piston 4, Qi Jiang grease chamber 3 is divided into two and is divided into the first 3a of grease chamber and second these two parts of the 3b of grease chamber, and can reciprocatingly arrange in grease chamber 3.From the active force that is arranged at the spring 5 of the first 3a of grease chamber side, put on all the time piston 4, in the situation that do not apply outside power, the mode that piston 4 moves with the direction along making the first 3a of grease chamber expansion forms.
In the inside of piston 4, be formed with the 4a of cavity portion of a part that forms the second 3b of grease chamber.The 4a of cavity portion is communicated with first path 6 of distolateral (the first 3a of the grease chamber side) that be formed at piston 4, and is communicated with another the distolateral alternate path 7 that is formed at piston 4.The screw division that the hollow member 8 of tubular is screwed into by the distolateral screw 4b to being formed at piston 4 the base end part periphery that is formed at this hollow member 8 is bonded.Hollow member 8 is extended to have the mode of the length of regulation on the axis direction at spring 5, and links to be positioned at mode and the piston 4 of the inside of spring 5.It is hollow bulb 8a that hollow member 8 possesses for accommodating the space of sponge rubber 10 described later.Hollow bulb 8a is communicated with the 4a of cavity portion (the second 3b of grease chamber) of piston 4 via the first above-mentioned path 6.Leading section in hollow member 8 is provided with flap valve 8A, utilizes flap valve 8A to be communicated with blocking to hollow bulb 8a and the first 3a of grease chamber.Flap valve 8A forms by being formed at the ball resettlement section 8b of front end of hollow member 8 and the ball 9 that is contained in movably this ball resettlement section 8b.Hollow bulb 8a is communicated with the first 3a of grease chamber via the hole 8c that hollow bulb 8a and ball resettlement section 8b are linked and ball resettlement section 8b.In door opens wide process, ball 9 is pressed to the inwall of ball resettlement section 8a by the interior pressure of the first 3a of grease chamber, thereby the working oil that stops the first 3a of grease chamber side goes out to second grease chamber's 3b effluent via hollow bulb 8a and the first path 6.
Hollow bulb 8a to hollow member 8 is inserted with tabular sponge rubber 10.Sponge rubber 10 has separated foam structure, in the situation that Yin Wendu rises and cause the working oil in grease chamber 3 to expand, air in each bubble is compressed and make sponge rubber 10 shrink its volumes.Because Yin Wendu rises, cause the expansion of working oil to be absorbed by the change of the volume of sponge rubber 10, so the interior voltage rise of grease chamber 3 is high, prevents from housing 2 leakage of oils.Sponge rubber 10 is along with working oil returns to normal temperature and returns to original volume.It should be noted that, sponge rubber 10 is equivalent to expansion absorption member of the present invention.
As shown in Figure 4, sponge rubber 10 is that positive 10a and back side 10b, other faces of possessing parallelogram are rectangular hexahedron, when hollow bulb 8a to hollow member 8 inserts, in the end that is positioned at a side of piston 4 sides, possess Right deviation inclined-plane 10c, in the opposing party's the end that is positioned at the opposition side of piston 4 sides, possess left-leaning inclined-plane 10d.At this, Right deviation inclined-plane 10c and left-leaning inclined-plane 10d are the inclined plane with respect to the axis inclination of hollow member 8.The height H of sponge rubber 10 and thickness T form than the aperture of the hole 8c of hollow bulb 8a and ball resettlement section 8b link and the first path 6 is large, and form littlely than the internal diameter of hollow bulb 8a.Because sponge rubber 10 has Right deviation inclined-plane 10c and left-leaning inclined-plane 10d, so hole 8c and the first path 6 sealed by sponge rubber 10, and can not stop flowing of working oil.
Another the distolateral alternate path 7 that is formed at piston 4 forms by the side path 7a of cavity portion with than the large MP major path 7b of the side path 7a of this cavity portion, at this MP major path, 7b is provided with flap valve 11, by this flap valve 11, the cavity Bu4aYu 3c of grease chamber is communicated with to blocking.Flap valve 11 possesses the valve body 12 chimeric with MP major path 7b, and in valve body 12, ball resettlement section 12a forms in the mode being communicated with the cavity side path 7aHe 3c of grease chamber, and ball 13 is contained in ball resettlement section 12a movably.And, flap valve 11 in door closing process by the interior pressure of the 3c of grease chamber and ball 13 is pressed on to the ball resettlement section 12a inwall communicating with the side path 7a of cavity portion and closes alternate path 7, thereby the working oil of the 3c of grease chamber side is not gone out to the 4a of cavity portion effluent via alternate path 7.
To housing 2, insert and be fixed with not shown speed adjustment valve, in the face of by the not shown stream linking between the 3c of grease chamber and the 4a of cavity portion, with the mobile interlock of piston 4, the flow of working oil is controlled, the closing velocity of opposite house is adjusted thus.
At door closer 1, be provided with rack and pinion mechanism portion, can make the switching campaign of door and the motion that moves back and forth of piston 4 reciprocally change.Specifically, rack and pinion mechanism portion, by being fixedly installed on the tooth bar 14 of piston 4 and the pinion 15 that is arranged at freely housing 2 that rotatablely moves forms, is connected with at the axis of rotation 16 being connected with housing 2 freely that rotatablely moves for pinion 15 the not shown arm that is arranged at frame side.Therefore, the switching campaign of door is delivered to axis of rotation 16 via not shown arm, thereby makes pinion 15 rotations.It should be noted that, rack and pinion mechanism portion is equivalent to piston drive mechanism of the present invention portion.
Fig. 1 is illustrated in the door closer 1 under the state after door is closed completely.And, when applying from this state the power opening the door wide, via arm (not shown), transmit and to make axis of rotation 16 around the power turning clockwise, make pinion 15 also around turning clockwise, with the tooth bar 14 of these pinion 15 engagements towards the paper left of Fig. 1 to movement.Be accompanied by the action of this tooth bar 14, the piston 4 being connected with tooth bar 14 overcome spring 5 active force and to paper left to movement.By the moving movement of piston 4 that has overcome the active force of this spring 5, while putting aside the power moving to closing direction all the time, opened wide at door.
Otherwise when door is during from the power of the movement of the status releasing limiting door that opened wide completely, by the active force applying from spring 5, piston 4 moves towards the paper right of Fig. 1.By the movement of this piston 4, the tooth bar 14 being connected with piston 4 also moves towards paper right, makes pinion 15 around being rotated counterclockwise.By rotatablely moving of this pinion 15, axis of rotation 16 is around being rotated counterclockwise, therefore by the not shown arm being connected with axis of rotation 16, this is rotatablely moved and transmit the power for door is moved towards closing direction, thereby implement closing of door, when door becomes the state of closing completely, door closer 1 becomes the state shown in Fig. 1.According to above explanation, the rotatablely moving of the moving movement of tooth bar 14 and pinion 15, moving back and forth of piston 4 can be by rack and pinion mechanism portion and conversion mutually with the switching campaign of door.
As shown in Figure 3, at door closer 1, be provided with controlling organization portion 17, this controlling organization portion 17 carrys out the translational speed of control piston 4 by the mobile oil mass adjustment of the working oil between the first 3a of grease chamber and the second 3b of grease chamber to being accompanied by moving back and forth of piston 4, the opening speed of opposite house is controlled thus.Controlling organization portion 17 possesses along grease chamber 3 and be formed at the oil circuit 18 of housing 2.
Oil circuit 18 possesses three oil throughs 19,20,21 that are communicated with grease chamber 3.And, from left surface side direction oil circuit 18, screw togather and dispose fuel volume adjusting valve 22.The mode that this fuel volume adjusting valve 22 is positioned at its valve point the oil through 21 communicating with the first 3a of grease chamber all the time configures, by fuel volume adjusting valve 22 is rotated to operation, can realize oil through 21 conducting, close, fuel volume adjusting.
Be formed in the oil through of oil circuit 18, be disposed at the paper in Fig. 3 right side the second 3b of grease chamber side be the first oil through 19.This first oil through 19 be without concern door state and all the time with the oil through that is positioned at spring 5 and arranges the second 3b of grease chamber (4a of cavity portion of piston 4) conducting of the opposition side of side, when piston 4 is positioned at the paper rightmost side even door is closed, also maintain the state with the second 3b of grease chamber conducting.
With the first oil through 19 adjacent formation be the second oil through 20.This second oil through 20 be door during in closed condition with the oil through that is positioned at the first 3a of grease chamber conducting that spring 5 arranges side, is closed by piston 4 while piston 4 being moved being accompanied by the opening moving of direction of door.
In addition, be formed in the oil through of oil circuit 18, be arranged at the leftmost side of paper and without concerning the state of door, maintain all the time be positioned at spring 5 arrange side the first 3a of grease chamber conducting state be the 3rd oil through 21.
In Fig. 1,23 is end plug, and 24 is O type ring.End plug 23 is chimeric with embedded hole 2a by the 2b of negative thread portion of the outer screw section 23a of periphery and the embedded hole 2a of housing 2 is screwed togather.
Above, the basic structure of the door closer 1 of present embodiment is illustrated.Next, the action of the door closer 1 of present embodiment is described.At this, Fig. 5 is for the figure of the opening action of the door that is provided with door closer 1 is described.
First, when door is when the Reference numeral α by Fig. 5 illustrates such closed condition, door closer 1 is in the state shown in Fig. 1.Now, whole oil throughs 19,20,21 maintain with for the first 3a of grease chamber of conducting separately, the state of the second 3b of grease chamber conducting.And, while moving in the scope that door represents to Reference numeral β at the Reference numeral α by from Fig. 5, maintain the conducting state of whole oil through 19,20,21, working oil by two routes that represented by Reference numeral F1, F2 in Fig. 3 the 4a of cavity portion (the second 3b of grease chamber) from the first 3a of grease chamber to piston 4 mobile.
In addition, door moves, when door moves to the position that the Reference numeral β by Fig. 5 represents, the second oil through 20 is closed by piston 4, thus, the route being represented by Reference numeral F1 that so far can realize the movement of working oil is closed, and the movement of the 4a of cavity portion from the first 3a of grease chamber to piston 4 (the second 3b of grease chamber) of working oil only becomes the route being represented by F2, three sections of opening and closing speed adjusting power are started working, and piston 4 reduces translational speed and moves.The position that represents from the Reference numeral β by Fig. 5 of door to the position of door standard-sized sheet with the speed of the having slowed down action of opening the door.It should be noted that, even if piston 4 moves to the position of a standard-sized sheet, the flap valve 8A of hollow member 8 also forms in the mode 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 3a of grease chamber, and to be positioned at the inside of spring 5 and link with piston 4 and can with piston 4 together the hollow bulb 8a of mobile hollow member 8 insert sponge rubber 10.And hollow member 8 possesses flap valve 8A, this flap valve 8A is communicated with blocking to the first 3a of grease chamber with the hollow bulb 8a of hollow member 8a.At door, open wide in process, utilize flap valve 8A that working oil is not flowed out in hollow bulb 8a from the first 3a of grease chamber, the movement of the piston 4 while therefore opening wide by door, even repeatedly become high pressure in the first 3a of grease chamber, in hollow bulb 8a, can not become high pressure, so sponge rubber 10 can not crumble yet.Thereby in the door closer 1 of present embodiment, the open angle that three sections of opening and closing speed adjusting power is started working can not change.And, hollow bulb 8a in the hollow member 8 being communicated with the first 3a of grease chamber and the second 3b of grease chamber contains sponge rubber 10, because the rise expansion of the working oil cause of temperature is absorbed by the change of the volume of sponge rubber 10, the interior voltage rise that prevents grease chamber 3 is high and cause from housing 2 leakage of oils.
Based on door closer of the present invention, be not limited to above-mentioned embodiment, in the scope that can record at claims, carry out various distortion, improvement.For example, as shown in Figure 6, to the receiving space 8a of hollow member 8, insert and form sponge rubber 30 cylindraceous.If the first path 6 of the 30a of hole portion of sponge rubber 30 cylindraceous and the hole 8c of hollow member and piston 4 is communicated with, when door is closed, easily guarantee the stream at the mobile working oil of hollow bulb 8a, thereby can make working oil flowing smoothly from hollow bulb 8a to the first 3a of grease chamber.
In addition, in the above-described embodiment, the flap valve 8A that is located at the leading section of hollow member 8 forms by being formed at the ball resettlement section 8b of front end of hollow member 8 and the ball 9 that is contained in movably this ball resettlement section 8b, but is not limited to this.For example, can use Fig. 7 and flap valve 8B as shown in Figure 8.As shown in Figure 7, the hollow bulb 8a to the hollow member 8 with piston 4 links is inserted with a plurality of sponge rubbers cylindraceous 31.The 31a of hole portion of sponge rubber cylindraceous is communicated with the first path 6 of piston 4, becomes the stream of working oil.Inwall at the leading section of hollow member 8 is fixed on valve seat 40 by being pressed into, and can on the left and right directions of Fig. 7, be provided with movably spool 41 with respect to this valve seat 40.The two ends of spacer pin 43 that are installed on the rearward end of spool 41 are located in the groove 40a that the rearward end of valve seat 40 forms, and spool 41 can not rotate around its axis.As shown in Figure 7, at door, open wide in process, spool 41 is subject to the oil pressure of the first 3a of grease chamber and becomes the state relatively moving to the right with respect to valve seat 40, the flange part 41A of spool 41 and the leading section butt of valve seat 40, and compression O type ring 42 and make the side opening 41B of spool 41 become the state of closing.As shown in Figure 8, in door closing process, spool 41 is subject to the oil pressure of receiving space 8a and becomes the state relatively moving to the left with respect to valve seat 40, be installed on the spacer pin 43 of spool 41 and the trench bottom butt of the groove 40a of valve seat 40, the fore-end of the flange part 41A of spool 41 and O type ring 42 and valve seat 40 from, the side opening 41B of spool 41 becomes the state of opening, the working oil of the second 3b of grease chamber side by the 31a of hole portion of sponge rubber, the inboard channel 41C of spool 41 and side opening 41B and to the first 3a of grease chamber side flow.That is, the side opening 41A of spool 31 and inboard channel 41B form the intercommunicating pore of the first 3a of grease chamber and the second 3b of grease chamber connection.
Claims (1)
1. a door closer, has:
Housing, it possesses the grease chamber that is filled with working oil;
Piston, Qi Jianggai grease chamber is divided into two and is divided into the first grease chamber and the second grease chamber, and in Gai grease chamber, is arranged to can 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, its mobile oil mass adjustment by the working oil of the movement between this first grease chamber and this second grease chamber to being accompanied by moving back and forth of this piston is controlled the translational speed of this piston, and the opening speed of opposite house is controlled thus,
Described door closer is characterised in that,
In the mode with this piston link, be provided with the hollow member of the inside that is positioned at this spring,
Described hollow member possesses: with this first grease chamber and the two hollow bulb being communicated with of this second grease chamber; The flap valve that stops working oil to move to this hollow bulb from this first grease chamber,
At described hollow bulb, contain expansion absorption member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013067892A JP6006150B2 (en) | 2013-03-28 | 2013-03-28 | Door closer |
| JP2013-067892 | 2013-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104074426A true CN104074426A (en) | 2014-10-01 |
| CN104074426B 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108710274A (en) * | 2018-04-24 | 2018-10-26 | 周柳含 | A kind of automatic carbon dust tucker |
| CN107366487B (en) * | 2016-05-12 | 2019-09-13 | 盖慈有限公司 | Driving device |
| CN110630130A (en) * | 2018-06-25 | 2019-12-31 | 盖慈有限公司 | Drive device for a door or window leaf |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (6)
| 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 |
| JP2007177460A (en) * | 2005-12-27 | 2007-07-12 | Ryobi Ltd | 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 |
| JP2012207440A (en) * | 2011-03-30 | 2012-10-25 | Ryobi Ltd | Door closer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
-
2013
- 2013-03-28 JP JP2013067892A patent/JP6006150B2/en active Active
-
2014
- 2014-02-20 CN CN201410058057.7A patent/CN104074426B/en active Active
Patent Citations (6)
| 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 |
| JP2007177460A (en) * | 2005-12-27 | 2007-07-12 | Ryobi Ltd | 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 |
| JP2012207440A (en) * | 2011-03-30 | 2012-10-25 | Ryobi Ltd | Door closer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366487B (en) * | 2016-05-12 | 2019-09-13 | 盖慈有限公司 | Driving device |
| CN108710274A (en) * | 2018-04-24 | 2018-10-26 | 周柳含 | A kind of automatic carbon dust tucker |
| CN110630130A (en) * | 2018-06-25 | 2019-12-31 | 盖慈有限公司 | Drive device for a door or window leaf |
| CN110630130B (en) * | 2018-06-25 | 2021-06-08 | 盖慈有限公司 | Drive device for a door or window leaf |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104074426B (en) | 2016-08-17 |
| JP6006150B2 (en) | 2016-10-12 |
| JP2014190101A (en) | 2014-10-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102733703B (en) | Automatic door closing device | |
| CN104074426A (en) | Door closer | |
| US20190338576A1 (en) | Pneumatic door closer | |
| CN101970783A (en) | Hinge for automatically closing door which opens in both directions and structure for door which opening in both directions | |
| JP5973926B2 (en) | Thermo valve | |
| CN109451748A (en) | Gate valve | |
| CN101469586B (en) | Driving device for leaf of door or window | |
| CN208431390U (en) | Valve needle assembly and electronic expansion valve with same | |
| USRE34301E (en) | Fluid operable engine | |
| CN107314150B (en) | Heat control valve | |
| CN104500789B (en) | Anti-backflow twin-core integral type valve | |
| CN104074427B (en) | Door closer | |
| JP2012057798A (en) | Pneumatic shock absorber | |
| JP5702668B2 (en) | Door closer | |
| CN109990099A (en) | A kind of high pressure air governor bacterium valve | |
| CN209654510U (en) | Damp adjustable damper | |
| JP5823071B1 (en) | Gate valve | |
| JP2018511750A5 (en) | ||
| JP2019215040A (en) | Buffer | |
| CN109764077A (en) | Damp adjustable damper | |
| JP7246607B2 (en) | floor hinge | |
| KR20120092883A (en) | Small-sized oil pressure damper | |
| CN219570471U (en) | Cartridge valve | |
| JP2015214256A (en) | Height adjustment device for railway vehicle | |
| CN103867853A (en) | Switchable motor bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |