DE8536576U1 - Hinge for a door that closes itself under the influence of gravity or the like. - Google Patents

Description

description

The invention relates to a hinge for a door that closes itself under the influence of its own weight or the like.

In many cases, for example in the case of refrigerators or freezers, it is desirable or even necessary that a door tries to close automatically if it has been left open.

In known hinges for doors of this type v / iron those in mutual contact, the hinge or the Trunnions of the hinge surrounding surfaces of the door fitting and the hinge in the opening direction of the Door helically rising areas, so that the hinge when opening the door with a slight lift the same slides on the door fitting; the dead weight the door then tries to pivot the door back into the closed position on its fixed frame.

_2n In these known devices, which are proven from an exclusively practical point of view, the door fitting and the hinge are only in a very small area in mutual contact with the door open, this area entirely on one side of the

_OK Angel is arranged. This means that the entire weight of the door touches this small area, which can not only lead to rapid wear on the contact surfaces but also to bending of the vertical hinge.

These disadvantages are particularly evident in the case of very

large and heavy doors are noticeable and require the use of a larger number of hinges and / or frequent readjustments or even renewal of the existing hinges.

A particular object of the invention is to obviate the above discussed disadvantages and deficiencies of known hinges by creating Ines hinge for a door that closes itself under the influence of gravity or the like

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which the forces caused by the weight of the door are symmetrical with respect to the vertical hinge a larger contact area are distributed.

Another object of the invention is to provide one Hinge of the type mentioned above, in which the door fitting and the hinge relative to one another around a Angles of more than 180 ° can be rotated so that the Lets the door open fully,

Yet another object of the invention is to provide a hinge of the type mentioned, in which the door up to a ■ - to close is anxious i certain opening angle automatically and when opening beyond that angle in

an indefinite equilibrium position in the open

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Position persists.

Another important object of the invention is to provide a hinge of the type mentioned m which a highly

has a simple structure and is economically competitive is.

The foregoing and other objects which will become apparent from the following description are in accordance with the invention achieved by a hinge for a

₂ f- influence self-closing door or the like with a lower door fitting that can be fastened to a door frame, a hinge that can be fastened opposite the door frame on an edge of the door leaf and a vertical hinge connecting the door fitting rotatably to the hinge, where _{n is provided} according to the invention, that the upper end face of the door fitting, which is in contact with the lower end face of the upper hinge, has at least two inclined flanks rising in the opening direction of the door and that the lower end face of the hinge has the at least

__ two sloping flanks complementary and parallel to them Has ramps, the ramps being in contact with the sloping flanks assigned to them when the door is closed and when the door is opened, slide it on the sloping flanks while lifting it.

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In the following an embodiment of the invention is explained with reference to the drawing. Show it:

Fig. 1 is a disassembled oblique view of a hinge showing the mutual contact surfaces omission of the vertical hinge for the purpose of clarity,

Fig. 2 is a front view of the hinge with a door in the closed and, shown in dashed lines, open, Q neten state,

Fig. 3 is a front view of the hinge when closed Condition of the door,

Fig. 4 is a front view of the hinge in the partially open State of the door for automatic closing of the same and

Fig. 5 is a front view of the hinge with the door in a further opened condition, in which this is _on in an unspecified balance.

A hinge, denoted as a whole by 1 in the drawing, for a door opening under the influence of gravity or the like. has a lower door fitting 2 and an upper hinge 3, which by a vertical hinge 4 can be rotated with one another

are connected. The door fitting 2 can be fastened to a door frame, and the hinge 3 can be attached opposite the door fitting 2 on the edge 6 of a door leaf 7. The door fitting 2 and the hinge 3 are with their end faces surrounding the hinge 4 in mutual contact, ie the hinge 3 rests with its lower end face 8 on the upper end face 9 of the door fitting 2. The two end faces 8 and 9 are so _; - , formed that the lower end piece 10 of the fishing hinge 3 is complementary to the upper end piece 11 of the Türbgächlags 2, so that the hinge has ^{a substantially seamless, smooth outer surface 12 in OD} of the position of the door fitting and the fishing hinge corresponding to the closed state of the door.

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According to the invention, the upper end face 9 has a first and a second inclined flank 13 and 14, which in relation on the vertical hinge 4 are arranged opposite one another and around the hinge 4 in the opening direction of the door increase. Between the two inclined flanks 13 and 14, the upper end face 9 has around the tang 4 in the circumferential direction horizontal areas running around it. So is the first inclined flank 13 with a first lower horizontal Area 15 and a first upper horizontal area connected, while the second inclined flank 14 is between a second lower horizontal area 17 and a second upper horizontal area 18 extends. The first upper horizontal circumferential region 16 is in the circumferential direction adjacent to the second lower horizontal area and connected to it via a vertical step 19. In the same way, the second upper horizontal area 18 is the first lower horizontal area in the circumferential direction Area 15 is adjacent and connected to it via a second vertical step 20.

The horizontal areas, vertical steps and inclined flanks forming the upper end face 9 are thus uniform arranged around the vertical hinge 4 and show the following sequence in the opening direction of the door: The The first lower horizontal area 15 merges into the first inclined flank 13, which is followed by the first upper horizontal area 16, which over the '. -rste vertical step 19 is connected to the second lower horizontal area 17, at the end of which the second inclined

“ ₀ flank 14 adjoins in order to pass into the second upper horizontal area 18, which in turn is connected to the first lower horizontal area 15 via the second vertical step 20.

The two lower and the two upper horizontal areas 15, 17 or * 16, 18 each run in one common level, but the two lower horizontal areas 15 and 17 and the two upper horizontal areas Areas 16 and 18 in the circumferential direction each

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have different dimensions, so that the two perpendicular Steps 19 and 20 are arranged in two different levels through the axis of the vertical tang 4.

The first and second inclined flanks 13 and 14, the second lower horizontal area 17 and the second horizontal area In an advantageous embodiment, upper area 18 can extend over a circumferential angle of, for example each extending 45 °, the first lower jQ horizontal area 15 and the first upper horizontal area then Area 16 can each extend over a circumferential angle of 90 °.

As already indicated above, the lower end face 8 of the fishing tape 3 also has lower and upper horizontal

right areas, vertical steps and sloping flanks or Rams, which are arranged in the same order as the corresponding areas of the upper face 9. In particular, there are a pair of ramps 22 and 23, a pair of vertical steps 24 and 25, a pair

coplanar upper horizontal areas 27 and 27 and a pair of coplanar lower horizontal areas 28 and 29, which are arranged alternately in the circumferential direction and each have the same extent as the corresponding Areas of the upper end face 9 so that

the two parts of the hinge arranged one above the other in full contact with one another when the door is closed are located. The sloping flanks and ramps are located, the lower horizontal areas and the upper ones horizontal areas and the vertical steps of the two

the end faces in mutual contact.

For the sake of completeness, it should also be mentioned that on a side surface 31 of the hinge 3 assigned to the door leaf 7 and on a side surface 32 of the door fitting 2 assigned to the door frame 5, seats or bores 33 or 3 ^ for the reception of fastening elements such as screws öd. Like. Are formed.

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Its mode of operation can largely be seen from the above description of the hinge.

When the door is opened, see e.g. Fig. 4, the ramps slide 22 and 23 initially on the inclined flanks 13 and 14, the door fitting 2 and the hinge 3 to a Move away from each other in order to lift the door panel 7 accordingly. The fishing hinge 3 is continuously supported on two opposite each other in relation to the tang 4 -

^ q the places on the door fitting. Will the door in this initially released or partially open state, it strives to act on its own Weight close. If the door is over one of the circumferential extent of the inclined flanks 13 and 14 corresponding

open out at each angle, then the fishing hinge 3 is supported with the lower horizontal areas 28 and 29 of its end face 8 on the upper horizontal areas 16 or 18 of the end face 9 of the door fitting 2, so that the door leaf 7 is in an indefinite equilibrium

2Q is in a position and strives to persist in this.

In all partially or fully open positions of the door, the hinge 3 is supported on two in each case facing each other with respect to the vertical tang 4

/ the positions on the door fitting 2. The in relation to the

vertical tang 4 asymmetrical arrangement of the horizontal End face areas, which result from their different

; ■ which results in circumferential extension, enables the opening of the

Door leaf 7 beyond an angle of 180 ° without the two parts of the hinge are locked together.

In the case of the hinge described, the forces caused by the weight of the door are evenly distributed, see above that the loads acting on the hinge g-sr-inger and the hinge is particularly useful for heavy doors. In addition, details of the pre- / ' standing described embodiment within the framework of

te invention can be modified in various ways.

Claims (5)

1. Hinge for a self-closing under the influence of gravity door od _{4 the} like. With a lower door fitting attachable to a door frame, a hinge attachable to the door frame on an edge of a door leaf and a hinge connecting the hinge rotatably with the door fitting, characterized in that a upper end face (9) of the door fitting (2), on which the upper hinge (3) is supported with a lower end face (8), at least two inclined flanks (13, 1 ¹ O in the opening direction of the door leaf (7) and that the lower end face (8) of the fishing tape (3) has the at least two inclined flanks (13, 1 ¹ O complementary and parallel to these ramps (22, 23), welohe when the ϊ The door is in contact with the sloping flanks (13, 14) and when opening the door by lifting the door leaf (7) slide this on. 2. Hinge according to claim 1, characterized in that the upper end face (9) in one lower horizontal areas (15, 17) running in a common plane and upper ones running in a common plane has horizontal areas (16, 18), sxch each, Q sloping flank (13, 14) from a lower to an upper horizontal area. 3. Hinge according to claim 1 or 2, characterized in that the lower horizontal Areas (15, 17) close to their respective sloping flanks (13, 14) facing away from the end via a vertical step (19, 20) are connected to an upper horizontal area (16, 18). 4. Hinge according to at least one of claims 1 to 3, characterized in that the lower end face (8) of the fishing tape (3) in the circumferential direction alternating ramps (22, 23), lower horizontal areas (28, 29), upper horizontal areas (26, 27) and vertical steps (24, 25) so that the lower end piece (10) of the fishing line (3) corresponds to the upper end piece (11) of the door fitting (2) is complementary and the hinge (1) is smooth when the door is closed Has outer surface (12). _o "5. hinge according to at least one of claims 1 ov to 4, characterized in that the at least two inclined flanks (13, 14), the upper horizontal Areas (16, 18), the lower horizontal areas (15, 17) and the vertical steps (19, 20) _{oc of} the upper end face (9) is in the radial direction of the Oo vertical tang (4) extend and are formed in alternating order. 6, hinge according to at least one of claims 1 to 5 j, characterized in that the lower horizontal areas (15, 17) have different circumferential extensions. 7. Hinge according to at least one of claims 1 to 6, characterized in that the upper horizontal areas (16, 18) are different Have circumferential extent. 8. Hinge according to at least one of claims 1 to 7), characterized in that the at least two inclined flanks (13, 1 * 0 essentially have the same circumferential extent. 9. Hinge according to at least one of claims 1 to 8, characterized in that the vertical steps (19, 20) extend in vertical planes extending ^{through the vertical tang (1 I).} 10. Hinge according to at least one of claims 1 to 9, characterized in that the upper end face (9) of the door fitting (2) in the following specified sequence a first lower horizontal area (15), a subsequent first Inclined flank (13), an adjoining first upper horizontal area (16), one above a first vertical area Step (19) connected to it, the second lower horizontal area (17), followed by a second _ ₀ inclined flank (14), a second upper horizontal area (18) adjoining this and a second vertical step (20) connecting this to the first lower horizontal area (15). 11. Hinge according to at least one of the preceding Claims, characterized in that the first lower horizontal area (15) and the first upper horizontal area (16) have a circumferential extension of essentially 90 °. 12. Hinge according to at least one of the preceding claims, characterized in that the first sloping flank (13) »the second lower horizontal area (17), the second sloping flank (14) and the second 5 upper horizontal area (18) has a circumferential extension of essentially 45 ° * 13- Hinge according to at least one of the preceding Claims, characterized in that each area of the lower end face (δ) of the fishing tape (3) has essentially the same circumferential extent as the respectively assigned area of the upper end face (9) of the door fitting (2).