Door

Abstract

Gate with a gate leaf (10) that is movable between a closed position in which it at least partially closes a wall opening and is arranged in an approximately vertical closing plane, and an open position in which it at least partially releases the wall opening, wherein the gate leaf has a lower bottom area (16) of lesser width in a horizontal direction in the plane of the gate leaf in the closed position and an upper closing area (12) of greater width in a horizontal direction in the plane of the gate leaf in the closed position, wherein a sealing arrangement (40) is provided for sealing the transition between at least one lateral edge of the bottom area (16) and the wall containing the wall opening.

Description

[0001] The invention relates to a gate with a gate leaf that is movable between a closed position, in which it closes a wall opening and is arranged in an approximately vertical closing plane, and an open position, in which it at least partially releases the wall opening, wherein the gate leaf has a lower bottom area of ​​smaller width in a horizontal direction in the gate leaf plane in the closed position and an upper closing area of ​​greater width in a horizontal direction in the gate leaf plane in the closed position.

[0002] These gates, also known as ramp gates, are used to close wall openings located in the loading dock areas of warehouses, logistics centers, and similar facilities. These loading docks are designed so that a truck can reverse up to them for loading and / or unloading. A loading bridge is typically used for loading and / or unloading. This bridge spans the gap between the truck's loading platform and the building's loading floor, and may also compensate for any difference in level between the loading platform and the loading floor. The loading bridge is usually recessed into the building's loading floor and is positioned after the truck has approached to achieve the desired bridging and leveling.

[0003] In addition to the loading bridge, so-called approach buffers are often installed at the wall opening forming the loading and / or unloading opening. These buffers prevent damage to the wall and / or the truck when approaching the loading and / or unloading opening. The loading bridge is typically positioned between these approach buffers. The loading bridge, or the mechanisms for moving it into the desired loading position, also often need protection from the elements. For this purpose, gates of the type described above are used. The closing section of these gates covers the building opening used for loading and unloading, while the bottom section, when closed, covers the loading ramp and its actuators, which may be mechanical, electrical, hydraulic, and / or pneumatic.This ensures, on the one hand, satisfactory protection of the loading bridge, on the other hand, satisfactory collision protection without impairing the existing loading opening in the wall, and finally, complete closure of the loading opening.

[0004] The closing section of the door leaf is often designed as a so-called sectional door leaf, which comprises a number of door leaf elements connected to each other by hinges perpendicular to the direction of movement. The door leaf movement is guided by guide rollers attached to the individual door leaf elements, which run on roller tracks located along the lateral edges of the wall opening. This guidance system is not available for the floor area. To guide the floor area when the door leaf reaches the closed position, vertical guide channels are often used in the reveal of the wall opening that accommodates the floor area. The lateral edges of the floor area retract into these channels when the door leaf is closed.

[0005] The transition between the wall opening and the door leaf in the closed position can be sealed in the area of ​​the lateral edges of the door leaf with sealing arrangements such as those described, for example, in EP 2136025. Additionally, a seal can be provided at the lower edge of the floor area and / or at a parallel lower edge of the closing area, which is regularly arranged above the lower edge of the floor area, using suitable floor seals. Similar door constructions are disclosed in EP 3064698 A1, DE 20 2016 103 845 U1, US 2827114 A and GB 2017795 A.

[0006] However, in the operation of conventional ramp gates of the type described above, it has been shown that the thermal separation between the outside and inside is unsatisfactory using the known gates.

[0007] In view of these problems in the prior art, the invention is based on the objective of providing ramp doors with which heat losses from a room enclosed by such doors can be satisfactorily counteracted. This objective is achieved by a further development of the known doors, which is essentially characterized by the fact that a sealing arrangement is provided for sealing the transition between at least one lateral edge of the floor area and the wall containing the wall opening in the closed position of the door leaf. Doors according to the preamble of claim 1 are described in DE 20019490 U1.

[0008] The invention is based on the finding that the observed heat losses occur primarily in the floor area designed to protect the loading bridges. In this area, the gate leaf movement is guided when reaching the closed position exclusively by means of the channels provided in the reveal of the wall opening. However, these channels must be manufactured with large tolerances to ensure that the lateral edges of the floor area can be reliably inserted into them. This results in significant heat losses between the interior and exterior.

[0009] The inventive further development of the known gates reduces these heat losses. It was discovered that the seals can be arranged in the area of ​​the shafts that receive the lateral edges of the base section without impairing the secure insertion of the lateral edges of the base section into these shafts. The seals can, for example, be designed with sufficient flexibility. If the sealing arrangement includes, for instance, a sealing element that can be fixed against the wall on one side and, in the closed position, against an outer boundary surface of the base section on the other, the sealing element can be designed such that, when the outer boundary surface of the base section comes into contact with it, the necessary flexibility is achieved even if the base section is not inserted precisely into the shaft.

[0010] In the embodiment of the invention just described, as well as in all other embodiments of the invention, the width of the base area can be 95% or less, in particular 90% or less, of the width of the closure area. The height of the base area can be 5% or more, in particular 10% or more, of the height of the closure area.

[0011] Within the scope of the invention, it has proven particularly advantageous to provide a guide arrangement fixed to the wall, with which an outer boundary surface of the floor area is pressed against the sealing element during a closing movement of the gate leaf. This embodiment of the invention allows for an arrangement of the sealing element that is only effective in the closed position, thus providing sufficient space for the insertion of the lateral edges of the floor area into the shafts, if any, provided in the area of ​​the reveal of the wall opening.

[0012] Furthermore, this prevents the outer boundary surface of the base area from rubbing against the sealing element, if this outer boundary surface of the base area is slowly brought closer to the sealing element with the help of the guide surface during the closing movement and only comes into contact with the sealing element when the closed position is reached.

[0013] In connection with low-wear operation of gates according to the invention, it has proven particularly advantageous if the guide arrangement has a guide surface that, during the closing movement, comes into contact with an inner boundary surface and / or a lower edge of the bottom area, preferably forming an acute angle of more than 0.1° with a vertical plane. Due to the inclined arrangement of the guide surface, the closing movement of the bottom area of ​​the gate leaf can be guided in such a way that it gradually approaches the sealing element without any rubbing.

[0014] In view of the tolerances in the assembly of gates according to the invention and the different installation situations, it has proven particularly advantageous if an adjustment device is provided for adjusting the inclination of the guide surface, which may be at least partially housed in an approximately vertical shaft of the reveal, with which, after assembly of the gate, the inclination of the guide surface can be adjusted in such a way that, on the one hand, a rubbing contact with the guide element is avoided, and on the other hand, the insertion of the lower edge of the floor area into a guide shaft, if any, is not obstructed.

[0015] The adjusting device of gates according to the invention can have an actuating element that can be fixed on one side with respect to the wall and on the other side with respect to the guide surface, and which is arranged, in particular, between the wall and the guide surface, and which can be displaced with respect to the guide surface in a direction approximately perpendicular to the closing plane. This actuating element is preferably arranged in the lower half of the guide surface. To secure the setting, two, three, or more actuating elements arranged one above the other can be provided.

[0016] For attaching the guide surface, the actuating element and / or the sealing arrangement, a gate according to the invention can have a fastening leg that can be fixed with respect to the wall and is preferably arranged in a vertical plane approximately perpendicular to the closing plane for attaching a guide element forming the guide surface.

[0017] The guide element, together with the mounting leg, can optionally be inserted into a shaft designed to accommodate the lateral edges of the base area in the closed position. To secure the guide element to the mounting leg, the guide element can be designed such that the guide surface runs perpendicular to the mounting leg and preferably has a fixing leg running approximately parallel to the mounting leg. Accordingly, the guide element of the described embodiment of the invention is designed as an angle profile. The guide element and / or the mounting leg can be made at least partially of steel, plastic, or aluminum.

[0018] In the embodiment of the invention described last, the actuator can have an actuator plate arranged at least partially between the fixing leg and the mounting leg. The actuator plate can, for example, comprise an elongated hole through which a fixing bolt passes and which extends approximately in a horizontal direction, allowing the actuator plate to be displaced with respect to the guide surface in a horizontal direction.

[0019] As mentioned above, the fastening leg can also be designed to secure the sealing element. For this purpose, the invention provides for a holder, preferably extending approximately parallel to the closing plane, to hold the sealing element. In the closed position, a lateral edge of the bottom area is preferably arranged between the holder and the guide surface of the guide arrangement. The holder is expediently fixed to the fastening leg, and the sealing element is attached to a boundary surface of the holder opposite the guide surface, so that in the closed position, a lateral edge of the bottom area lies between the guide surface and the sealing element.

[0020] Within the scope of the invention, it has proven particularly advantageous for providing an easily assembled component if the guide element, the mounting leg, and the holder form a guide rail that is at least partially recessed in a vertical channel of the wall opening's jamb, which receives the bottom section of the gate leaf in the closed position. To ensure smooth closing while simultaneously providing adequate weather protection, it has proven advantageous to provide a centering element that can be placed on the upper edge of the guide rail, into which the lower edge of the bottom section can be inserted, and which preferably covers an outer area of ​​the channel surrounding the bottom section received in the guide rail.

[0021] In order to increase the wear resistance of gates according to the invention, it has proven advantageous to provide a sliding element fixed at the lower edge of the floor area, which comes into contact with the guide surface during the closing movement.

[0022] As already mentioned at the beginning, the closing area of ​​a gate according to the invention can have a plurality of gate leaf elements articulated to one another with respect to joint axes extending perpendicular to the direction of gate leaf movement, wherein a bottom seal can be arranged at the lower edge of the closing area and / or at the lower edge of the floor area.

[0023] To further increase the wear resistance and corrosion resistance of gates according to the invention, it can be provided that a cap made of a corrosion-resistant material, such as plastic, is placed on the lower edge of the guide rail received in the guide shaft.

[0024] The invention is explained below with reference to the drawing, to which express reference is made with regard to all details essential to the invention and not further detailed in the description. The drawing shows: Fig. 1 a gate according to the invention before reaching the closed position, Fig. 2 a gate according to the invention with the gate leaf moved into the closed position, Fig. 3 a guide rail of a gate according to the invention and Fig. 4 a sectional view of a gate according to the invention with a bottom area of ​​the gate leaf received in the guide rail.

[0025] The in Fig. 1 The gate depicted comprises a gate leaf, designated 10, which has a closing area 12 and a bottom area 16. The gate leaf is approximately T-shaped, with the closing area 12 having a greater width in a horizontal direction of the gate leaf plane than the bottom area 16. A bottom seal 18 is provided at the lower edge of the bottom area 16. In addition to the bottom area 16, bottom seals 14 are also arranged at the lower edges of the closing area 12, which run approximately parallel to the lower edge of the bottom area 16 in a horizontal direction.

[0026] Due to the movement of the gate leaf in the Fig. 1 The direction marked with arrow P indicates the direction in Fig. 2 The gate leaf reaches the closed position shown. In this closed position, the locking section 12 covers a wall opening serving as a loading port, while the bottom section 16 can cover a receptacle for a loading ramp (not shown). Approach buffers can be attached to the wall next to the bottom section 16 to prevent damage to the wall and / or a truck during approach, without obstructing the loading port covered by the locking section 12.

[0027] As particularly evident in Fig. 1b ) shown, is in the closed position ( Fig. 2 A vertical slot 20 is formed in the jamb 10, which receives the bottom area 16 of the gate leaf 10. A guide rail 30, designated as a whole, is received in this slot. The guide rail 30, received in the slot 20, serves to guide the gate leaf movement in the bottom area 16. To guide the gate leaf movement in the closing area 12, guide rollers (not shown in the drawing) are provided on the inner boundary surface of the closing area 12. These rollers are received in guide roller rails attached to an inner boundary surface of the wall containing the wall opening and interact with these rails to guide the gate leaf movement. The gate leaf 10 can have a plurality of gate leaf elements pivotally connected to one another in the closing area 12 with respect to pivot axes perpendicular to the direction of movement of the gate leaf.

[0028] The guide rail 30, which is received in the vertical slot 20 of the reveal, is in Fig. 3 presented in detail. Fig. 3a ) a view of the guide rail, while Fig. 3b Figure 3 shows a perspective view of the guide rail. The guide rail 30 comprises a mounting leg, designated 60, which can be placed against a wall of the slot 20 that runs vertically perpendicular to the closing plane of the door leaf. A sealing assembly 40 and a guide assembly 50 are attached to the mounting leg 60. The sealing assembly 40 comprises a support 42 and a sealing element 44 attached to the support. The support 42 runs in a vertical plane approximately perpendicular to the mounting leg 60. The seal 40 is defined with respect to the boundary surface of the support 42 facing the guide assembly.

[0029] The guide assembly 50 comprises a fixing leg 54 extending parallel to the mounting leg 60 and a guide leg 52 forming a guide surface facing the seal 44, which extends perpendicularly to the fixing leg 44 and the mounting leg 60. Two actuating plates 70 are provided between the fixing leg 54 of the guide assembly 50 and the mounting leg 60 of the guide rail 30. The guide assembly 50 is displaceable in the horizontal direction with respect to the lower actuating element 70, as indicated by the double arrow P'. In this way, the inclination angle of the guide surface formed by the guide leg 52 with respect to a vertical plane can be adjusted. A centering element designated 90 is arranged at the upper edge of the guide rail 30, through which the lateral edge of the bottom area of ​​the gate leaf 10 can be inserted into the guide rail.The centering element has an upper flange 92 which, after assembly, surrounds the lateral edge of the base area 60, which is received in the guide rail 30 in the closed position, and covers the shaft 20 and the guide rail 30. A sliding element 100 is arranged at the lower edge of the base area 16 (see . Fig. 4 ), which, during the closing movement of the gate leaf, comes into contact with a guide surface formed by the guide leg 52 of the guide arrangement 50.

[0030] In the Fig. 4In the depicted closed position, the lateral edge of the base area 16 is positioned between the sealing element 44, which is fixed to the support 42, and the guide leg 52 of the guide assembly. Due to the adjustable inclination of the guide assembly 50, the horizontal distance between the sealing element 44 and the guide leg 52 decreases in the direction of gravity, so that during the closing movement, the outer boundary surface of the base area 16 is brought closer to the sealing element 44 by the sliding contact of the sliding element 100 with the guide surface of the guide assembly 52, without coming into contact with it.

[0031] The sliding element 100 serves not only as a wear-free guide but also as a means of securing the bottom seal 18. The guide rail 30 ensures reliable guidance of the bottom section 16 of the door leaf during the closing movement, culminating in a sealing contact between the outer boundary surface of the bottom section 16 and the sealing element 14. Simultaneously, the guide arrangement 50 enables a stable and low-play installation of the bottom section 16 in the vertical slot 20 in the reveal area. Without the guide rail 30, the bottom section 16 would be pivotable towards the interior relative to the closing area 12 because the shaft 20 would need to be wider than necessary to ensure reliable closing, and the bottom section 16 lacks any additional guidance.A cap made of corrosion-resistant material is placed on the lower edge of the guide rail 30 in order to prevent corrosion in the area of ​​the edge of the guide rail, which is usually made of steel.

[0032] The invention is not limited to the embodiment illustrated in the drawing. It also encompasses embodiments in which both the support for the seal and the guide leg of the guide assembly are inclined with respect to a vertical plane to form a funnel-shaped inlet for the lower edge of the bottom section 16 of the gate leaf. Conventional side seals, such as those described, for example, in EP 2136025, can be provided in the area of ​​the closing section 12 of the gate leaf 10. The guide assembly and seal assembly can also be mounted directly onto the shaft in the reveal of the wall opening without an intermediate mounting leg. However, by combining the guide assembly, seal assembly, and mounting leg, an assembly can be provided that facilitates the installation of the overall arrangement.

Claims

1. Door having a door leaf (10) which can be moved between a closed position, in which it at least partially closes a wall opening and is arranged in an approximately vertical closing plane, and an open position, in which it at least partially exposes the wall opening, wherein the door leaf has, in the closed position, a lower bottom region (16) having a smaller width in a horizontal direction in the door leaf plane, and, in the closed position, an upper closure region (12) having a larger width in a horizontal direction in the door leaf plane, characterized by a sealing arrangement (40) for sealing the transition between at least one lateral edge of the bottom region (16) and the wall having the wall opening.

2. Door according to claim 1, characterized in that the sealing arrangement (40) has a sealing element (44) which is, on the one hand, configured to be fixed to the wall and, on the other hand, in the closed position, bears against an outer boundary surface of the bottom region (16).

3. Door according to claim 2, characterized by a guide arrangement (50) which is configured to be fixed to the wall and by means of which an outer boundary surface of the bottom region (16) is forced against the sealing element (44) in the course of a closing movement of the door.

4. Door according to claim 3, characterized in that the guide arrangement (50) has a guide surface which, in the course of a closing movement of the door leaf (10), comes into contact with an inner boundary surface and / or a lower edge of the bottom region.

5. Door according to claim 4, characterized in that the guide surface encloses an acute angle of more than 0.1° with a vertical plane.

6. Door according to claim 5, characterized by an adjusting device (70) for adjusting the inclination of the guide surface.

7. Door according to claim 6, characterized in that the adjusting device (70) has an actuating member which is, on the one hand, configured to be fixed to the wall and, on the other hand, configured to be fixed to the guide surface, in particular arranged between the wall and the guide surface, and which is displaceable with respect to the guide surface in a direction (P') running approximately perpendicular to the closing plane.

8. Door according to one of claims 3 to 6, characterized in that the guide arrangement (50) is configured to be fixed to the wall and preferably has a fastening limb, which runs in a vertical plane approximately perpendicular to the closing plane, for fastening a guide element (52) forming the guide surface.

9. Door according to claim 8, characterized in that the guide surface runs approximately perpendicular to the fastening limb (60) and the guide element (50) has a fixing limb which preferably runs approximately parallel to the fastening limb (60).

10. Door according to claim 9, characterized in that the actuating member (70) has an actuating member plate (70) which is arranged at least partially between the fixing limb (54) and the fastening limb (60).

11. Door according to one of claims 2 to 10, characterized by a holder (42), which preferably runs approximately parallel to the closing plane, for holding the sealing element (44), wherein, in the closed position, a lateral edge of the bottom region (16) is preferably arranged between the holder (42) and the guide surface.

12. Door according to claim 10 or 11, characterized in that the holder (42) is fixed to the fastening limb (60) and the sealing element (44) is fastened with respect to a boundary surface of the holder (42) opposite the guide surface.

13. Door according to claim 11 or 12, characterized in that the guide element (50), the fastening limb (60) and the holder (42) form a guide rail (30) which is received in a vertical shaft (20) of the reveal of the wall opening which receives the bottom region (16) of the door leaf (10) in the closed position.

14. Door according to claim 13, characterized by a centering element (90) which can be placed on the upper edge of the guide rail (30) and into which the lower edge of the bottom region (16) is introducable and which preferably covers an outer region of the shaft (20) which encircles the bottom region received in the guide rail.

15. Door according to one of claims 3 to 14, characterized by a sliding element (100) which is configured to be fixed to the lower edge of the bottom region and which, in the course of the closing movement, comes into contact with the guide surface.

16. Door according to one of the preceding claims, characterized in that the closure region has a plurality of door leaf elements which are pivotably connected to one another about a hinge axis running perpendicular to the door leaf movement direction.

17. Door according to one of the preceding claims, characterized by a bottom seal (14, 18) arranged on the lower edge of the closure region (12) and / or on the lower edge of the bottom region (16).

18. Loading ramp having a door according to one of the preceding claims and a loading bridge which is covered by the bottom region in the closed position of the door leaf.

19. Loading ramp according to claim 18, characterized by at least one start-up buffer which is fixed to the wall next to the bottom region.

Images