CN101135216A

CN101135216A - Upper door closer

Info

Publication number: CN101135216A
Application number: CNA2006101266741A
Authority: CN
Inventors: B·内勒斯
Original assignee: Dorma Deutschland GmbH
Current assignee: Multi Makai pull Germany Co Ltd
Priority date: 2006-09-01
Filing date: 2006-09-01
Publication date: 2008-03-05
Anticipated expiration: 2026-09-01
Also published as: CN101135216B

Abstract

The upside door closer includes one slender casing with thread plugs and caps connected to the thread plugs, one opening piston inside the casing, one compression spring connected to one side of the opening piston, one driving unit connected to the other side of the opening piston, and one damping piston connected to the driving unit. The driving unit has one driving shaft, which is supported on two shaft housings and extended beyond the shaft housings for connecting with link rods and fixing with thread elements. The upside door closer has also one device to avoid the transfer of the twisting action of the compression spring to the opening piston or the damping piston.

Description

Upper door closer

Technical field

The present invention relates to a kind of upper door closer, described upper door closer comprises the longilineal shell of a monolithic, and described shell all has a thread plug on each end face, described thread plug be provided be positioned at housing exterior be used for connection cover around groove.Portion has a continuous cylindrical hole in the enclosure, in described cylindrical hole, opens piston for one and is connected with the compression spring action on a side, and open the other end of piston and being connected of transmission device.In addition, transmission device is being connected with the daming piston effect.Transmission device has power transmission shaft at this, and described power transmission shaft is bearing in the axle housing on two opposite sides of shell in this wise, and it is so far away that power transmission shaft is stretched out from two axle housings, so that can utilize connecting rod or motion arm, for example is used for slide type rail system.The two ends of power transmission shaft respectively are provided with square toes or similar item, and also have threaded hole, and connecting rod or motion arm will be fixed by above-mentioned screwed hole.The external surface that shell is provided at an outer portion with mutual bending or tilt shrinks, described external surface stretches and ends at straight front the upper door closer front region from rear side.Upper door closer has the holding flange that is used for fixing that is shaped in side direction, and described holding flange is provided with each three hole.

Background technology

This class door closer is well-known, and they have proved its reliability and multiple application possibility in actual applications.This door closer can be installed on the inboard of door leaf and on the outside, and also can be installed on doorframe or the similar item.

In addition, known automatic door closer, wherein using can be towards the door closer axle of two direction of rotation rotation from make position, and is provided with a cam in the enclosure.In this case, spring assembly is an accumulator.

Summary of the invention

The purpose of this invention is to provide a kind of upper door closer, described upper door closer can be made in large quantities at an easy rate, and when using door, also realizes expensive door closer comfortableness.This means promptly use the slide rail door closer also should have to reduce open the commentaries on classics distance.In addition, the efficient of this door closer should be very high.And in order to catch up with present development trend, door closer should be realized as much as possible little, means simultaneously and should adopt minimum material to make shell.

This purpose reaches with the feature of claim 1.Dependent claims provides another formation by the present invention's design.

According to the solution of the object of the invention, this upper door closer can be made by the longilineal shell of monolithic, and described shell all is provided with thread plug on each end face.This thread plug be provided with the outside that is positioned at shell be used for connection cover around groove.In the continuous cylindrical hole of portion, open piston and on a side, be connected, and be connected with transmission device in the enclosure at the other end of opening piston with the compression spring action, described transmission device have door closer and between the mechanism that connects.In addition, a daming piston is set, described daming piston also is connected with the transmission device effect.Can eliminate because the reversing of the unlatching piston that twisting action produced of spring by corresponding device thereof.

This device is avoided opening reversing of piston or is also avoided reversing of daming piston according to structure according to embodiment.The function of this door closer is not subjected to the influence of this device at all, and on the contrary, the efficient of door closer increases.

In order cheaply to make, be noted that and make shell especially in a large number that this shell is consumed the least possible material, and above-mentioned shell is produced with casting.Therefore, the present invention proposes the external surface that shell has bending or mutually shrinks obliquely, and described external surface begins and ends at front region from the rear side of shell, and described front region preferably extends abreast with rear wall.Two axle housings are formed in the external surface, realize the outlet of power transmission shaft in above-mentioned axle housing.The external surface of this axle housing is provided with corresponding side and front in addition, and above-mentioned side becomes a special angle, is to extend obliquely to a certain extent.

In order to use this upper door closer in different installation situation, described upper door closer has the lateral fixation flange, and above-mentioned lateral fixation flange replaces two traditional fixing holes, but has three fixing holes.Owing to this generality, this upper door closer can be installed in the very high place of upper edge of door.

In fact transmission device is transformed into lengthwise movement and rotatablely moves, and above-mentioned transmission device comprises a cam disc.Cam disc force closure ground and shape are connected on the power transmission shaft sealedly.Under with the corresponding production equipment situation, also can make the cam disc that has power transmission shaft by single-piece.

Described thus upper door closer can widespread usage, that is on DIN standard offside door and DIN standard offside door, two outlets in shell, upper door closer has a cam disc, and described cam disc has the cam trend of symmetry.Move towards coupling by cam, can realize being matched with separately local specified criteria with this transmission device.And, can reach minimizing by this cam disc and open torque.

Because the high pressure that compression produced by spring type mechanical accumulator when open the door, therefore current spring rotate around it self axis easily.This also produces simultaneously is to open the torque of piston or reverse at least.One corresponding bearing can be installed between compression spring and the unlatching piston, so that avoid this situation.Yet corresponding bearing is very expensive.Two pins have proved avoids opening the inexpensive devices that piston and daming piston reverse, and above-mentioned pin is fixedly mounted on one of them piston and inserts in another piston.These lock and thickly are arranged near the power transmission shaft, have therefore avoided opening reversing of piston and daming piston, and above-mentioned unlatching piston and daming piston interconnect, because when reversing the trend generation, each pin is bearing on the power transmission shaft.Can be with roundwood material with respective strengths, but also can be with heavy holding pin or closing sleeve as stop pin.

Provide a kind of door closer to solve known problem, above-mentioned door closer has a small outline package, and described small outline package has very small-sized outer shape, and therefore very little structure height is arranged.This door closer can be used in the narrow or disadvantageous mounting condition equally.Although the sheathing material demand of the present invention of door closer is few, reached the function that big stability is become reconciled.In this case, all wall thickness all reduce to minimum.Resulting thus exterior contour is designed in appearance by having transition relevant radii, level and smooth and seamless.In this case, the trend that particularly preferably is between end face the crooked of outside external surface or tilts.The level and smooth trend of exterior contour has significantly reduced the problem that material uses and minimizing occurs usually in casting process.

Description of drawings

The possible embodiment that schematically illustrates in inciting somebody to action with reference to the accompanying drawings below illustrates the present invention, wherein:

Fig. 1 illustrates the phantom drawing of upper door closer of the present invention;

Fig. 2 illustrates the upper door closer lateral view according to Fig. 1;

Fig. 3 illustrates along the sectional view of the line A-A of Fig. 2;

Fig. 4 illustrates along the sectional view of the line B-B of Fig. 2;

Fig. 5 illustrates with vertical view and passes the partial sectional view that the shell that comprises antitorque rotary device is cut open;

Fig. 6 illustrates with front elevation drawing and passes the sectional view that shell is cut open in the power transmission shaft zone that comprises antitorque rotary device;

Fig. 7 illustrates the lateral seal lid with phantom drawing;

Fig. 8 illustrates closing cap according to Fig. 7 with sectional view.

The specific embodiment

Fig. 1 provides the embodiment of the upper door closer that has shell 1.Shell 1 has the holding flange 3 of side direction, makes the corresponding fixing hole 4 that is used for fixing door closer in described holding flange 3.In this case, begin, holding flange 3 is connected with radius 66 from the rear side 44 of shell 1.On side direction, shell 1 is limited by the end face 13 that be arranged in parallel.Vice 6 is packed on each side of shell 1 in the visible end face 13.And, have control valve 14 on an end face 13 therein.Begin from rear side 44, launch two external surfaces 36, described external surface 36 has the trend of bending or inclination.External surface 36 ends at front 37, and described front 37 preferred parallel are extended in rear side 44.In this case, between external surface 36 and the front 37 and the transition region of end face 14 by corresponding radius rounding.

Axle housing 26 is outside external surface 36.Axle housing 26 is arranged on outside the center of door closer, therefore realizes little back shaft size.Axle housing 26 equally also has corresponding side 45 and front 46.The two all is provided with corresponding radius side 45 and front 46.The top sealing of axle housing 26 constitutes surface 42.The power transmission shaft 11 that is bearing in the shell 1 stretches out from each axle housing 26.

The external surface 36 that extends with bending or radius is especially obvious in the lateral view according to Fig. 2 of Fig. 1 upper door closer.Axle housing 26 constitutes until 37 ground, front with its front 46 extensions.

The internal construction of upper door closer uses the sectional view of cutting open along the line A-A of Fig. 2 shown in Figure 3.In shell 1, in the screw thread 8 and each of two end faces 13 of under the situation of using seal 53, packing into of thread plug 6 by side direction end face 13 places.In this case, thread plug has the groove that is used for tool insert 7.Simultaneously, will around groove 41 make zone at the thread plug 6 that is arranged in shell 1 outside.

Below begin to illustrate the upper door closer internal construction from the right side of Fig. 3.On thread plug 6, connect a thrust washer 9 that is provided with hole 56 thus.Hole 56 is aimed at the hole 54 that is positioned at thread plug 6.This hole 54 is used for filling up upper door closer with corresponding damping medium.Hole 54 usefulness, one locking device, 55 sealings.

One end bearing of compression spring 2 is on thrust washer 9, and above-mentioned compression spring 2 is formed in the cylindrical hole 5 that runs through whole casing 1.The other end of compression spring 2 is bearing in to be opened on the piston 10.Open piston 10 and have a hole 16.Roller 18 is bearing in rotatably by axle 17 and opens in the piston 10.In this case, cam disc 19 collaborative works of roller 18 and adjacency, described cam disc 19 is members of power transmission shaft 11.Cam disc 19 is close on the roller 18 by groove 67.The curve that cam disc 19 is provided with two side direction symmetry formations moves towards 64.Two curves move towards 64 and end at a tip 68, and described most advanced and sophisticated 68 are positioned on the central axis 63 in the resting position of door closer; Axle 17 is arranged on this central axis 63 equally.Roller 21 is positioned on the central axis 63 equally by the roller 21 that is close on most advanced and sophisticated 68 of axle 20 supportings.Roller 21 is positioned at the otch 22 of daming piston 23.It should be noted that roller 18 is configured in the otch of opening in the piston 10 15 equally.

Daming piston 23 is bearing in left side thread plug 6 by compression spring 25.The hole 40 that valve member 24 inserts wherein is arranged in the daming piston 23.Valve member 24 is combined to form by one way valve and reducing valve.The space that stays between left side thread plug 6 and the daming piston 23 is called the damping chamber, and it is represented with Reference numeral 49.

In Fig. 4, the upper door closer that B-B along the line cuts open is shown.Especially open piston 10 power transmission shaft 11 daming piston 23 be bearing in this view high-visible.

Power transmission shaft 11 inserts the shell 1 from a side, is that the upside from Fig. 4 is inserted in the shell 1 in this case.Cam disc 19 or force closure ground and shape are fixed on the power transmission shaft 11 sealedly, or power transmission shaft 11 and member of cam disc 19 formation.Power transmission shaft 11 has two outlets in axle housing 26.Power transmission shaft 11 passes corresponding axial outlet hole 38 with its end and stretches out, and square toes 12 are respectively fixed on the above-mentioned end, and comprise screwed hole 65 in described end.Because upper door closer is not as the bottom door closer, it needn't carry the whole weight of door.Therefore, the size of the bearing of power transmission shaft 11 can be quite little.Except seal 29, so bearing 30 is arranged in the bottom of Fig. 4.The upper support of power transmission shaft 11 realizes by the bearing in the bearing insert 28 23.The outlet of power transmission shaft 11 is by seal 31 sealings, and the sealing of bearing insert 28 realizes by seal 33.After the bearing insert 28 of packing into, just above-mentioned bearing insert 28 is locked in its positions in axle housing 26 by snap ring 27.

Because the power of compression spring 2 and compression spring 25 is close on the cam disc 19 with its roller 21 with its roller 18 and daming piston 23 all the time so guarantee to open piston 10.When operation power transmission shaft 11, make cam disc 19 rotations, and daming piston 23 is implemented sliding motion with unlatching piston 10 in shell 1.Twisting resistance produces by tensioning compression spring 2, and above-mentioned twisting resistance makes at least opens piston 10 around central axis 63 rotations.Piston 10 and 23 rotation cause the efficient of upper door closer to reduce greatly.In order to restrain this point, the piston connection device 35 of interconnection is positioned to be opened piston 10 and also is positioned at daming piston 23.Described piston connection device 35 is shown in Figure 5, and piston connection device 35 illustrates with the form of pin 51 herein.In this embodiment, two pins 51 are positioned at and open piston 10.These pin 51 longitudinal directions at door closer shell 1 (being parallel to central axis 63) go up to extend and transverse to power transmission shaft.They for example are connected by sealed the connection with unlatching piston 10 of force closure and shape.This can for example realize with following method, promptly utilizes heavy holding pin as pin 51, and described pin 51 is installed in by interference fit and opens in the piston 10.Yet, can be implemented in the daming piston 23 equally and fixedly mount.Yet concerning the function of pin 51, conclusive is that they closely are positioned on the power transmission shaft 11 with less clearance.Therefore, they directly extend above cam disc 19 with corresponding gap and direct mistake power transmission shaft 11 both sides.Therefore, can for example go out part and in the zone of pin 51, make, so that the space that is used for pin 51 accordingly is provided by groove by aixs cylinder.Guaranteeing to open piston 10 by this measure can not be with respect to cam disc 19 rotation.Still do not change to anticlockwise to the right and open the position of piston 10 with respect to cam disc 19.

Therefore opposed daming piston 23 is prevented the locking device of rotation, thus sell the corresponding length of 51 designs, like this so that can not be inserted into frictionally in two interior blind holes 50 of daming piston 23 with matched in clearance.The degree of depth of blind hole or length are determined size like this, so that keep enough big free space between the end of the insertion end of stop pin and blind hole 50.This free space must be enough dark, so that at daming piston 23 with during opening the lengthwise movement of piston 10, the impact of pin 51 takes place not in daming piston 23.On the contrary, above-mentioned blind hole 50 can be arranged on and open in the piston 10.But importantly preferably use two pins 51, because if only use a pin, it is perhaps only locked on a direction of rotation then to open piston 10 and daming piston 23.

In the embodiment shown in Fig. 5 and 6, the material that utilizes circle is as pin 51.These round bars or pin are cheap locking device, and their processing during making door closer are convenient.Certainly, it also is feasible using square material or similar item.

The respective seat of pin 51 can be found out in Fig. 6.

Can be used to cover the holding flange 3 of band fixing hole 4 at the lid 57 shown in Fig. 7 and 8.Lid 57 has 59, one sides 58 of a median plane to begin at above-mentioned median plane 59 places respectively.Consistent with external surface 36, face 58 and 59 constitutes at an angle or with corresponding radius.

For fixed cap 57, lid 57 has a fishplate bar 60, and described fishplate bar 60 interrupts in the heart district therein.The thickness of fishplate bar 60 is matched with the width and the degree of depth of the groove 41 that is arranged in the thread plug 6.Therefore, by lid is assembled to simply on the thread plug 6 and will covers with the holding flange 3 of fixing hole 4.Shell 1 has corresponding convex shoulder 52 at its end face 13 places, therefore draw cover 57 and shell 1 between clearly transition.

List of numerals

1 shell, 36 outer surfaces

2,25 Compress Springs, 37,46 fronts

3 holding flanges, 38 axial outlet holes

4 fixing holes, 41 grooves

42 of 5 cylindrical holes

6 thread plugs, 44 rear sides

7 tool insert, 45,58 sides

8 screw threads damping chambers 49

9 thrust washers, 50 blind holes

10 open piston 51 pins

The convex shoulder that 11 power transmission shafts 52 are used to cover

12 square toes, 55 locking devices

13 end faces, 56 lids

14 control valves, 57 lids

15,22 otch, 59 median planes

16,40,54,56 holes, 60 fishplate bars

17,20 63 central axis

18,21 rollers, 64 cams trend

19 cam discs, 65 screwed holes

23 daming pistons, 66 radiuses

24 valve members, 67 grooves

26 axle housings, 68 tips

27 snap rings

28 bearing inserts

29,31,33,53 seals

30,32 bearings

Claims

1. upper door closer, comprise the longilineal shell of a monolithic (1), above-mentioned shell (1) all has a thread plug (6) on each end face (13), this thread plug (6) be provided with one be positioned at shell (1) outside be used for connection cover (57) around groove (41); And described shell has a continuous cylindrical hole (5), in described cylindrical hole (5), opens piston (10) for one and is connected with compression spring (2) effect on a side; And the opposite side of opening piston (10) is connected with a transmission device effect, and above-mentioned transmission device is connected with daming piston (23) effect at opposite side; And transmission device has power transmission shaft (11), described power transmission shaft (11) at two opposite side upper supports of shell (1) in axle housing (26), wherein power transmission shaft (11) stretches out so far away from two axle housings (26), so that connecting rod or motion arm can connect by preferred square toes or similar item, and fix by screwing element; And described upper door closer also has a device, described device is not transferred to the twisting action that only compresses spring (2) and is opened on piston (10) or the daming piston (23), and the external surface (36) that shell (1) has mutual bending or tilts to shrink, described external surface (36) begins and ends at front preferred and that rear side (44) extends in parallel to constitute from the rear side (44) of shell (1) (37), and axle housing (26) has with respect to the side (45) of external surface (36) diagonally extending and front (46), and shell (1) is gone up the outstanding holding flange (3) that has band fixing hole (4) in the zone of rear side (44) at the parallel end face (13) of its side direction.

2. according to the described upper door closer of claim 1, it is characterized in that, transmission device comprises the cam disc (19) that force closure and shape are connected with power transmission shaft (11) sealedly, described cam disc (19) is with in opening piston (10) and roller (18, the 21) collaborative work that has in the daming piston (23).

3. require one of them described upper door closer according to aforesaid right, it is characterized in that, power transmission shaft (11) integrally constitutes with cam disc (19).

4. require one of them described upper door closer according to aforesaid right, it is characterized in that, cam disc (19) has on the both sides of the central axis (63) of door closer and constitutes curve trend symmetrically.

5. require one of them described upper door closer according to aforesaid right, it is characterized in that, open piston (10) and the locked rotation that prevents around central axis (63) of daming piston (23).

6. require one of them described upper door closer according to aforesaid right, it is characterized in that, the anti-locking device that reverses comprises at least one preferred two stop pin (51) that extend towards axis direction (63).

7. require one of them described upper door closer according to aforesaid right, it is characterized in that, at least one stop pin (51) extends on each side of power transmission shaft (11).

8. require one of them described upper door closer according to aforesaid right, it is characterized in that, stop pin (51) force closure and shape sealedly with open piston (10) and be connected, and in (23) the interior clearing hole (50) that inserts daming piston with a gap.

9. require one of them described upper door closer according to aforesaid right, it is characterized in that, be connected with daming piston (23) to stop pin (51) force closure sealedly, and insert in the clearing hole of opening in the piston (10) (50) with a gap with shape.

10. require one of them described upper door closer according to aforesaid right, it is characterized in that, stop pin (51) is made with rounded material or similar item.

11. require one of them described upper door closer, it is characterized in that stop pin (51) is made the holding pin or the closing sleeve of attaching most importance to according to aforesaid right.

12. require one of them described upper door closer according to aforesaid right, it is characterized in that, prevent that the locking device that piston (10,23) reverses from comprising bearing, preferably include journal bearing, described bearing is arranged on to be opened between piston (10) and the compression spring (2).

13. require one of them described upper door closer, it is characterized in that external surface (36) differently curved or inclination or the extension of paraboloidal ground according to aforesaid right.

14. require one of them described upper door closer, it is characterized in that on one of them of side direction end face (13), having control valve (14) according to aforesaid right.

15. require one of them described upper door closer, it is characterized in that control valve (14) is fixed after it is set according to aforesaid right.

16. require one of them described upper door closer, it is characterized in that each holding flange (3) has two or three fixing holes (4) according to aforesaid right.

17. require one of them described upper door closer according to aforesaid right, it is characterized in that in one of described axle housing (26), having bearing insert (28), described bearing insert (28) is used as locking device simultaneously, and locks with snap ring (27).

18. require one of them described upper door closer, it is characterized in that daming piston (23) is supported on the cover cap (6) unilaterally by compression spring (25) according to aforesaid right.

19. require one of them described upper door closer according to aforesaid right, it is characterized in that daming piston (23) has a valve member, described valve member preferably constitutes one way valve or excess pressure valve.

20. require one of them described upper door closer according to aforesaid right, it is characterized in that lid (57) has the fixedly fishplate bar (60) of an inside, described fixedly fishplate bar (60) is provided with groove (61).

21. require one of them described upper door closer, it is characterized in that the outer shape of lid (57) and the shape of shell (1) are complementary according to aforesaid right.

22. require one of them described upper door closer, it is characterized in that the lid (57) that has groove (61) can be shifted onto on the groove (41) according to aforesaid right.

23. require one of them described upper door closer, it is characterized in that lid (57) is removable, and preferably is made of plastics according to aforesaid right.