DE202023106904U1 - Container and device for power-assisted opening of a door of the container - Google Patents

Abstract

Device (100) for the power-assisted opening of a door (202) of a container (200), in particular for the power-assisted opening of a door (202) of a safe, comprising: a clamping arm (102) which can be positioned in the interior (206) of the container (200), which is set up to be clamped between two walls (204) of the container (200) or to be screwed to at least one of the walls (204); a support arm (106) arranged on the clamping arm (102) so as to be pivotable about a first joint axis (104). the free end of which has an element (108) arranged to act on the door (202) or a part thereof; anda compression spring (110), which is connected at one end to the tensioning arm (102) so that it can pivot about a second hinge axis (112), and which is connected to the support arm (106) at the other end so that it can pivot about a third hinge axis (114).

Description

The invention relates to a device for power-assisted opening of a door of a container, in particular for power-assisted opening of a door of a safe. In addition, the invention includes a container with such a device, in particular a safe with such a device.

In the DE 20 2022 101 774 U1 The applicant describes a power support device for power-assisted pivoting of a safe door of a horizontally stored safe. This has proven itself very well in practice. However, it has been found that, particularly in safes with smaller dimensions, the toggle lever mentioned therein takes up too much space.

It is therefore the object of the present invention to provide a device for power-assisted opening of a door of a container and a container which take into account the disadvantage mentioned above.

This object is achieved with a device with the features of claim 1 and with a container with the features of claim 12. Advantageous embodiments with useful developments of the invention are specified in the dependent claims.

The device for power-assisted opening of a door of a container, in particular for power-assisted opening of a door of a safe, comprises a clamping arm that can be positioned in the interior of the container. The clamping arm is designed to be clamped between two walls of the container or to be screwed to at least one of the walls of the container. Screwing to more than one wall, for example two walls, is also possible. The device further comprises a support arm which is arranged on the clamping arm and can be pivoted about a first joint axis, at the free end of which an element for acting on the door or a part thereof is arranged. Furthermore, a compression spring is present, which is connected to the tension arm at one end so that it can pivot about a second joint axis, and which is connected to the support arm at the other end so that it can pivot about a third joint axis.

This device has the advantage that it is designed to take up very little space, so that even containers with interiors that have smaller dimensions can be opened reliably with the help of force. The device can be adjusted between an opening configuration and a closing configuration under the weight of the door, which in the present case can be pivoted about a horizontal axis. The compression spring ensures that the device automatically changes to the opening configuration and only assumes the closing configuration under a force that is greater than the weight of the door acting on the device.

It is advantageous if the tensioning arm comprises a base plate and two side plates extending parallel to one another, and if the side plates comprise passages through which the first joint axis for the support arm and the second joint axis for the compression spring are received by the side plates. In this way, the tension arm has a U-shaped design in its cross section, which results in increased stability. The first joint axis and the second joint axis are preferably oriented perpendicularly with respect to the side plates, since this ensures a reliable adjustment or pivoting of the support arm with respect to the clamping arm.

So that the compression spring can be reliably positioned between the tension arm and the support arm in the closing configuration, it is advantageous if the first joint axis for the support arm is arranged at a first distance from the base plate, and if the second joint axis for the compression spring is at a second Distance from the base plate is arranged, the first distance being greater than the second distance.

In order to be able to reliably support the clamping arm on the walls of the container or to screw it to at least one or both walls of the container, it has proven to be advantageous if the front of the clamping arm includes an end plate oriented perpendicularly with respect to the side plates. Preferably, at least one of the end plates is assigned a clamping screw in order to clamp the clamping arm between two of the walls of the container or to screw it to at least one of the walls.

It has proven to be advantageous if not only the clamping arm has a U-shaped cross-section, but also if such a U-shape is present in the cross-section of the support arm. In this context, it is preferred if the support arm comprises a support arm base plate and two side cheeks that run parallel to one another and extend from the support arm base plate. The U-shaped cross section also offers increased stability for the device, with the compression spring preferably being positioned between the legs of the U-shape.

To reliably secure the support arm to the tension arm, it is advantageous if the side cheeks of the support arm have a first opening for the passage of the first joint axis of the tension arm and a second opening for the passage of the third joint axis of the compression spring.

In order to keep the device particularly compact, it has proven to be advantageous if the support arm base plate and/or the compression spring is dimensioned such that the compression spring can be positioned between the two side cheeks of the support arm.

In order to facilitate the opening or closing process of the door, it is advantageous if the support arm base plate is assigned a sliding plate or a sliding coating on its side facing away from the clamping arm.

A particularly space-saving device can be achieved by making the support arm narrower, and preferably also shorter, than the clamping arm.

In order to additionally promote the opening or closing process of the door, a support roller which can be rotated about an axis of rotation is preferably arranged at the free end of the support arm, which then forms the element for acting on the door. Instead of a support roller, another simple sliding element, for example made of plastic, can also be arranged at the free end of the support arm.

So that the required force can be applied by the compression spring, especially when opening safe doors, it has proven to be advantageous if the compression spring is designed as a gas pressure spring. Preferably, a pressure tube of the gas pressure spring is articulated to the clamping arm, with a piston of the gas pressure spring being articulated to the support arm. This configuration lowers the center of gravity of the device so that the gas spring can apply the majority of its force to operate the door.

The advantages, configurations and effects explained in connection with the device according to the invention apply equally to the container according to the invention which is equipped with such a device. The device is clamped or screwed in the interior of the container, in particular in the interior of the safe, preferably with the walls of the container.

For a quiet and reliable opening or closing of the door of the container, which can be pivoted about a horizontal axis, it has proven to be advantageous if the door is assigned a slider on its side facing the device, which is set up when opening or to interact with the element for acting on the door when closing the door. Such a sliding piece does not affect the integrity of the door, which is particularly important if it is a door for a safe.

In order to be able to reliably move the door into the closed position or to reliably transfer the device into the closed configuration under the influence of the weight of the door, it has proven to be advantageous if the slider on the door has a control cam for a guided opening of the door or for a guided Closing the door has. This control cam is preferably designed in a wedge shape.

In order to reliably hold the door in its open position, it has proven to be advantageous if the slider comprises a locking seat in which the element for acting on the door is accommodated when the door is in an open state.

Alternatively, there is the possibility that the slider includes a step which serves as a stop for the element for loading the door when the door is in an open state.

• 1 eine perspektivische Ansicht auf eine Vorrichtung zum kraftunterstützten Öffnen eines als ein Tresor gebildeten Behältnisses, wobei die Vorrichtung in einer Öffnungskonfiguration gezeigt ist, und wobei der Übersicht halber keine Schrauben dargestellt sind,
• 2 eine seitliche Ansicht der Vorrichtung aus 1, ebenfalls in der Öffnungskonfiguration gezeigt,
• 3 eine der 2 entsprechende Ansicht der Vorrichtung aus 1, wobei die Vorrichtung in einer Schließkonfiguration gezeigt ist,
• 4 eine perspektivische Ansicht auf ein Behältnis mit einer Vorrichtung aus 1, wobei die Vorrichtung in der Öffnungskonfiguration gezeigt ist, und wobei sich die Tür des Behältnisses in einer Offenstellung befindet,
• 5 eine seitliche Ansicht auf das Behältnis aus 4, bei der sich die Türe ebenfalls in der Offenstellung befindet, und
• 6 eine der 5 entsprechende Ansicht des Behältnisses aus 4, wobei die Türe in einer Schließstellung gezeigt ist, in welcher sich die Vorrichtung in der Schließkonfiguration befindet.

Further features, properties and advantages of the present invention are described in more detail below using embodiment variants with reference to the attached figures. All features described so far and below are advantageous both individually and in any combination with one another. The embodiment variants described below merely represent examples, which, however, do not limit the subject matter of the invention. Show:

• 1 a perspective view of a device for power-assisted opening of a container formed as a safe, the device being shown in an opening configuration, and no screws being shown for the sake of clarity,
• 2 a side view of the device 1 , also shown in the opening configuration,
• 3 one of the 2 corresponding view of the device 1 , wherein the device is shown in a locking configuration,
• 4 a perspective view of a container with a device 1 , with the device in the opening configuration tion is shown, and with the door of the container in an open position,
• 5 a side view of the container 4 , where the door is also in the open position, and
• 6 one of the 5 corresponding view of the container 4 , wherein the door is shown in a closed position in which the device is in the closed configuration.

In the 1 until 3 a device 100 is shown for power-assisted opening of a door 202 of a container 200, in particular for power-assisted opening of a door 202 of a safe. The device 100 includes a clamping arm 102, which is set up to be clamped between two walls 204 of the container 200 in the interior 206. Alternatively, the clamping arm 102 can also be screwed to at least one of the walls 204.

The device 100 also includes a support arm 106, which is arranged on the clamping arm 102 so that it can pivot about a first joint axis 104. At the free end of the support arm 106, an element 108 for acting on the door 202 or a part thereof is arranged. The element 108 is here formed as a support roller 138. The support roller 138 can be rotated about an axis of rotation 136 at the free end of the support arm 106. This support roller 138 acts on the door 202 when opening or closing. In the present case, the support roller 138 is made from a thermoplastic, in particular from a polyethylene terephthalate (PETG) modified with glycol.

A compression spring 110 is present between the tension arm 102 and the support arm 106. The compression spring 110 is connected at one end to the clamping arm 102 so that it can pivot about a second joint axis 112. At the other end, the compression spring is pivotally connected to the support arm 106 about a third joint axis 114.

It can be seen that the clamping arm 102 is U-shaped in cross section and comprises a base plate 116, from which two side plates 118 aligned parallel to one another extend. The side plates 118 include passages 120 through which the first joint axis 104 for the support arm 106 and the second joint axis 112 for the compression spring 110 are guided by the side plates 118, the first joint axis 104 and the second joint axis 112 being oriented perpendicularly with respect to the side plates 118 . Preferably, the clamping arm 102 is formed from a steel sheet, in particular from a thermomechanically rolled steel sheet (for example according to DIN EN 10149-2:2013-12 ). The steel sheet preferably has a thickness of between 1 millimeter and 3 millimeters, preferably exactly 2 millimeters. The steel sheet, in particular the hot-rolled steel sheet, is preferably formed in another embodiment with a minimum thickness of 3 millimeters (for example according to DIN EN 10029:2011-02 ), but it is then no more than 2 centimeters thick. This design provides the tension arm 102 with a high yield strength and improved stability. Preferably, the surface of the steel sheet is pickled and, in particular, laser-capable. The surface of the steel sheet is preferably powder-coated, which protects it from corrosion and also improves aesthetics.

The support arm 106 is also U-shaped in cross section and includes a support arm base plate 126 and two side cheeks 128 that run parallel to one another and extend from the support arm base plate 126. Inside the “U” of the clamping arm 102 and within the “U” of the support arm 106 is there the compression spring 110 is positioned or enclosed by the two arms. In other words, the support arm base plate 126 and/or the compression spring 110 is dimensioned such that the compression spring 110 can be positioned between the two side cheeks 128 of the support arm 106. The support arm 106 is preferably formed from a steel sheet, in particular from a thermomechanically rolled steel sheet (for example according to DIN EN 10149-2:2013-12 ). The steel sheet preferably has a thickness of between 1 millimeter and 3 millimeters, preferably exactly 2 millimeters. The steel sheet, in particular the hot-rolled steel sheet, is preferably formed in another embodiment with a minimum thickness of 3 millimeters (for example according to DIN EN 10029:2011-02 ), but it is then no more than 2 centimeters thick. This design provides the support arm 106 with a high yield strength and improved stability. Preferably, the surface of the steel sheet is pickled and, in particular, laser-capable. The surface of the steel sheet is preferably powder-coated, which protects it from corrosion and also improves aesthetics.

The compression spring 110, which in the present case is formed as a gas pressure spring with a pressure tube 140 and a piston 142, can then be reliably positioned between the clamping arm 102 of the support arm 106 when the first joint axis 104 for the support arm 106 is at a first distance from the base plate 116 is arranged, and when the second hinge axis 112 for the compression spring 110 is arranged at a second distance from the base plate 116, the first distance being greater than the second distance. In order to realize these two distances, the 2 the clamping arm 102 has a first extension section 144, on which chem the support arm 106 is pivotally attached. This first extension section 144 extends beyond a base height of the side plate 118, whereby the passage 120 for the first joint axis 104 is positioned at a greater distance from the base plate 116 from the base plate. In addition, a second extension section 146 is present on the clamping arm 102, which has a smaller extent of extension compared to the base height of the side plate 118.

The pressure tube 140 of the gas pressure spring is made of steel, which gives the pressure tube 140 the necessary stability. For surface refinement and corrosion protection, the pressure pipe 140 can be painted, for example painted in color. The piston rod 142 of the gas pressure spring is preferably also made of steel, which gives the piston rod 142 the necessary stability. For surface refinement and corrosion protection as well as for additional hardening of the piston rod 142, the piston rod 142 can be hard chrome-plated. The progression of the gas pressure spring is preferably between 20 percent and 40 percent, in particular between 25 percent and 35 percent, preferably 30 percent. The progression of between 25 percent and 35 percent, in particular 30 percent, ensures reliable pressure behavior for opening the door 202. The extension force of the gas pressure spring is preferably from 50 Newton to 800 Newton. In the present case the extension force is 440 Newton. In the present case, the piston rod 142 has a diameter of 5 millimeters to 11 millimeters, in particular a diameter of 8 millimeters. This ensures a compact design of the gas pressure spring. Accordingly, the pressure pipe 140 is then formed with a diameter of 15 millimeters to 24 millimeters, in particular 19 millimeters. The stroke is from 30 millimeters to 80 millimeters, especially from 40 millimeters to 60 millimeters. The latter serves to make the gas pressure spring more compact. This is further increased when the stroke is 50 millimeters. Overall, a length of the gas pressure spring can be achieved with the piston rod 142 extended, which is 120 millimeters and 170 millimeters, preferably 130 millimeters and 160 millimeters, in particular 145 millimeters. A different stroke and length are also possible and can be selected or adjusted depending on the prevailing conditions.

The clamping arm 102 has an end plate 122 at each end, one of the end plates 122 of which includes a passage 120 for a clamping screw 124. With the help of this clamping screw 124, the clamping arm can be firmly clamped between two walls 204 in the interior 206 of the container 200. To avoid sharp edges and to provide sufficient "material" for fastening the tension screw 124, each of the side plates 118 has a rise 148 on the side of the tension screw 124 which extends above the base height of the side plate 118; in an analogous manner to the two extension sections 144, 146. This rise 148 is chosen to be linear in the present case, but could also have a different design.

The support arm 106 also has a first connection plate 150 on its two side cheeks 128 on its end facing the clamping arm 102, which provides a larger amount of “material” in order to be able to form a reliable connection with the clamping arm 102. The side cheeks 128 are also reinforced at the opposite free end in the area of the third joint axis 114, with a second connection plate 152 also being present on each side cheek 128 on the side of the element for acting on the door 108, namely the support roller 138.

To interact with the edge of the door 202, the support arm 106 has a sliding plate 134. This sliding plate 134 is attached to the support arm base plate 126 on its side facing away from the clamping arm 102. In the present case, the sliding plate 134 is made from a thermoplastic, in particular from a polyethylene terephthalate (PETG) modified with glycol. In the closing configuration, which is in 3 As shown, the device 100 is folded; the compression spring 110 is therefore maximally compressed there. It can be seen particularly clearly here that the support arm 106 is narrower and also shorter than the clamping arm 102. In other words, the support arm 106 does not extend beyond the clamping arm 102.

In 4 the device 100 is now fixed within a container 200, namely within a safe. For this purpose, the clamping arm 102 is clamped between two walls 204 with a clamping screw 124. While 4 and 5 Showing the open position of door 202 is in 6 to recognize a closed position of the door 202.

The door 202 of the safe, which can be pivoted about a pivot axis in the horizontal direction, has a slider 208 which is designed to interact with the element 108 for acting on the door 202 when the door 202 is opened or closed. This slider 208 has a control cam 210 that works particularly well 5 can be recognized. This straight and wedge-shaped control cam 210 serves for the guided opening of the door 202 and also a guided closing of the door 202. At the end, this slider 208 has a step 212, which acts as a stop for the element ment 108 is used to act on the door, therefore for the support roller 138. With this step 212 the door 202 is kept in an open state. Only when a predetermined force is exerted can the element 108 overcome the step 212, in particular because no dead center is assumed. The use of a support roller 138, which is rotatable, also contributes to this.

In 6 The closed configuration can then be seen, which only builds up slightly axially. This means that even particularly small interior spaces 206 of containers 200 can be provided with such a device 100 in order to open the door 202 with the help of force.

REFERENCE SYMBOL LIST

100

contraption

102

Tension arm

104

first joint axis

106

Support arm

108

Element for loading the door

110

Compression spring / damper / gas pressure spring

112

second joint axis

114

third joint axis

116

Base plate (clamping arm)

118

Side plate (tension arm)

120

Passage (clamping arm)

122

End plate (tension arm)

124

Clamping screw (clamping arm)

126

Support arm base plate (support arm)

128

Side cheek (support arm)

130

first opening (support arm)

132

second opening (support arm)

134

Slide plate (support arm)

136

Axis of rotation

138

Support roller

140

Pressure pipe (compression spring)

142

Piston (compression spring)

144

first extension section (tension arm)

146

second extension section (tension arm)

148

Rise (tension arm)

150

first connection plate (support arm)

152

second connection plate (support arm)

200

container (safe)

202

door

204

Wall

206

inner space

208

Slider

210

Control cam (sliding piece)

212

step (slider)

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202022101774 U1 [0002]

Non-patent literature cited

• DIN-EN 10149-2:2013-12 [0026, 0027]
• DIN-EN 10029:2011-02 [0026, 0027]

Claims (15)

Device (100) for power-assisted opening of a door (202) of a container (200), in particular for power-assisted opening of a door (202) of a safe, comprising: a clamping arm (102) which can be positioned in the interior (206) of the container (200) and is designed to be clamped between two walls (204) of the container (200) or to be screwed to at least one of the walls (204); a support arm (106) arranged on the clamping arm (102) so as to be pivotable about a first joint axis (104), at the free end of which an element (108) for acting on the door (202) or a part thereof is arranged; and a compression spring (110), which is connected to the tensioning arm (102) at one end so that it can pivot about a second joint axis (112), and which is connected to the support arm (106) at the other end so that it can pivot about a third joint axis (114). Device (100) after Claim 1 , characterized in that the clamping arm (102) comprises a base plate (116) and two side plates (118) extending parallel to one another, and in that the side plates (118) comprise passages (120) through which the first joint axis (104) for the Support arm (106) and the second joint axis (112) for the compression spring (110) are received by the side plates (118), whereby they are preferably oriented vertically with respect to the side plates (118). Device (100) after Claim 2 , characterized in that the first joint axis (104) for the support arm (106) is arranged at a first distance from the base plate (116), and that the second joint axis (112) for the compression spring (110) is arranged at a second distance from the Base plate (116) is arranged, the first distance being greater than the second distance. Device (100) after Claim 2 or 3 , characterized in that the clamping arm (102) on the front side each comprises an end plate (122) oriented perpendicularly with respect to the side plates (118), with at least one of the end plates (122) being assigned a clamping screw (124) in order to hold the clamping arm (102) between to brace two of the walls (204) of the container (200) or to screw them to at least one of the walls (204). Device (100) according to one of Claims 1 until 4 , characterized in that the support arm (102) comprises a support arm base plate (126) and two side cheeks (128) which run parallel to one another and extend from the support arm base plate (126). Device (100) after Claim 5 , characterized in that the side cheeks (128) have a first opening (130) for the passage of the first joint axis (104) of the tension arm (102) and a second opening (132) for the passage of the third joint axis (114) of the compression spring (110 ) exhibit. Device (100) after Claim 5 or 6 , characterized in that the support arm base plate (126) and/or the compression spring (110) is dimensioned such that the compression spring (110) can be positioned between the two side cheeks (128) of the support arm (106). Device (100) according to one of the Claims 5 until 7 , characterized in that the support arm base plate (126) is provided with a sliding plate (134) or a sliding coating on its side facing away from the clamping arm (102). Device (100) according to one of Claims 1 until 7 , characterized in that the support arm (106) is narrower, and preferably also shorter, than the clamping arm (102). Device (100) according to one of Claims 1 until 8th , characterized in that the free end of the support arm (106) is assigned a support roller (138) which can be rotated about an axis of rotation (136). Device (100) according to one of Claims 1 until 9 , characterized in that the compression spring (110) is present as a gas pressure spring, the pressure tube (140) of which is articulated to the clamping arm (102), and the piston (142) of which is articulated to the support arm (106). Container (200), in particular a safe, with an interior (206) and a door (202), as well as with a device (100) clamped or screwed into the interior (206) according to one of the Claims 1 until 11 . container (200). Claim 12 , characterized in that the door (202) is assigned a slider (208) on its side facing the device (100), which is designed to act on the element (108) when opening or closing the door (202). Door (202) to interact. container (200). Claim 13 , characterized in that the slider (208) has a control cam (210) for a guided opening of the door (202) or for a guided closing of the door (202). container (200). Claim 13 or 14 , characterized in that the slider (208) comprises a locking seat in which the element (108) for acting on the door (202) is received when the door (202) is in an open state, or that the slider (208) comprises a step (212). which serves as a stop for the element (108) for acting on the door (202) when the door (202) is in an open state.

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