RU198780U1 - Wardrobe door - Google Patents

Abstract

Wardrobe door refers to the production of metal furniture, in particular to the double doors of wardrobes for storing office supplies, office equipment, documentation, outerwear and other things. In this description, the design of a removable double-leaf door is presented, which is part of the cabinet, and during the use of the cabinet, the door is in a functional and constructive relationship with the cabinet body. The technical result is to increase the rigidity of the lightweight door. The door for the cabinet contains sashes, which are interconnected in the operating position by a lock, each sash is made of a perforated sheet, the edges of which are curved inward of the sash and rigidly connected to each other in a closed reinforcement belt located around each sash, the latter has a box-shaped section in transverse and longitudinal sections a shape, inside which there is a U-shaped post in cross section with flanges at the ends extending in the opposite direction from each other so that they are parallel to the front wall of the sash, adjoin it tightly and are connected to it along the height of the post. An air cavity is formed between the inner surface of the post and the inner surface of the perforated wall of the sash, and each end wall of the sash is formed by an inwardly bent edge of the front wall of the sash. 4 p.p. f-ly, 26 ill.

Description

Wardrobe door refers to the production of metal furniture, in particular to the double doors of wardrobes for storing office supplies, office equipment, documentation, outerwear and other things. In this description, the design of a removable double-leaf door is presented, which is part of the cabinet and during the use of the cabinet, the door is in a functional and constructive relationship with the cabinet body.

Known door leaf of a metal door containing a frame and cladding elements connected to it, and also known furniture boards of cabinets with holes (RU 99298 U, 20.11.2010. RU 184946 U, 15.11.2018). In cabinets with solid door walls, stagnant air zones are formed, in which dust, moisture, mold and mildew accumulate.

From advertising publications on the Internet, double and single-leaf doors with perforated front walls are known (Doors with perforation DX.YP, PROVENTO group of companies. Perforated door for ITK, LINEA, N18U, LN05-18U6 cabinet, PROVENTO group of companies. Floor cabinet 19 470 600x600, turnkey perforated door Cabeus ND-05C-32U60 / 100 Telecommunication installation cabinet Double-leaf steel door with ventilation for DK-TS, Rittal 60F-42-64-94BL Rackcenter D9000 cabinet 42U x 1000, front door single-leaf perforated, rear door double perforated cabinet Rackcenter D9000 42U 600 x 1200, front perforated door Google ITK double perforated door for LINEA N280 cabinet, 600mm, black, gray, manufactured by Electrostroy-M LLC, inspection date 12/15/2019).

Of the known close door - an analogue of the door presented in this description - is the ITK double-leaf perforated door for the LINEA N280 cabinet, 600mm, black, gray, manufactured by OOO Electrostroy-M. This analogue is intended for installation in the doorway of the cabinet, which serves to accommodate ITK equipment, accessories and accessories, has two door leaves for the LINEA N series cabinets with a width of 600 and 800 mm. Each door can be installed instead of a solid rear wall, or, if necessary, can be installed instead of one or two doors.

A known industrial design is a cabinet door, in which there are elongated slots located at the top of the door and serving for cabinet ventilation (RU 75789 S, 08.16.2010).

Known foreign industrial images of double-leaf doors for cabinets, each of which is characterized by the presence of leaves, making the leaves elongated in height and rectangular, making the leaves with perforated elements forming elaborate distinctive shapes and patterns (CN 99319514.8, 06.01.1999. CN201130076184.7, 14-04 -2011. CN 201030156408.0, 30.04.2010. CN 2010301156481.8, 30.04.2010. CN 2010301155086.8, 30.04.2010.CN 2010301156408.0, 30.04.2010. ES DO521572-0003, 22.07.2015).

Of the known industrial designs, a close analogue to the door presented in this description is a multi-leaf door according to the specified application CN 201030156408.0, which is characterized in that two door leaves are made with solid front walls, and the third leaf is made with a plurality of circular holes in the front wall extending upward from the lower edge of the valve - to the zone of the solid surface of the front wall of the valve.

From foreign patent documentation, cabinet doors with ventilation holes in them are known, with each door being double-leafed and each door leaf containing a frame and a front wall facing sheet attached to it, located on the front side of the door (US2018332958A1, 2018-11-22. CN207807669U, 2018-09-04. CN206834514U, 2018-01-02). In the patent CN206834514U, a double-leaf door is presented, containing leaves, which in the operating position are connected to each other by a lock, each leaf has longitudinal elements connected to the transverse elements, together forming a frame of the door leaf, each leaf has a metal sheet attached to the leaf frame from its front side with ventilation holes in it, while the sheet is rigidly connected to the transverse and longitudinal elements of the sash frame.

The known constructive solutions of doors do not sufficiently meet modern requirements for ventilated doors, which on the one hand set limits on the weight of the door, and on the other hand set limits on their rigidity. In the case of a decrease in the mass of the door, its rigidity decreases, the parallelism of the fit of the sash to the door opening of the cabinet is not achieved, the adhesion of the door to the elements of the opening becomes uneven with gaps in the places where the light door is curved.

Of the known doors, the one closest to the door presented in this description is a double-leaf perforated door containing leaves that are interconnected by a lock in the working position, each leaf has longitudinal elements connected to the transverse elements, together forming the frame of the door leaf, each leaf has an adjacent to the sash frame from its front side, a perforated metal sheet rigidly connected to the transverse and longitudinal elements of the sash frame (ITK double-leaf perforated door for LINEA N280 cabinet, 600mm, black, gray, manufactured by OOO Electrostroy-M, inspection date 12/15/2019 - prototype).

The prototype does not meet the technological requirements for cabinet doors in terms of the weight of the doors and their resistance to bending loads that occur on the doors during operation of the door installed in the cabinet doorway.

The technical result of the presented double-leaf door is to increase the rigidity and reduce the weight of the cabinet door.

The technical result is obtained by a cabinet door containing shutters, which are interconnected in the operating position by a lock, each shutter is made of a perforated sheet, the edges of which are curved inwardly of the shutter and rigidly connected to each other in a closed reinforcement belt located around each shutter, the latter has a transverse and longitudinal sections of a box-like shape, inside which there is a U-shaped cross-section stand with flanges at the ends extending in the opposite direction from each other so that they are parallel to the front wall of the sash, fit tightly to it and are connected to it by the height of the stand, while between An air cavity is formed by the inner surface of the post and the inner surface of the perforated wall of the sash, and each end wall of the sash is formed by the edge of the front wall of the sash bent inward.

Each perforated wall of each flap is formed by a plurality of holes with a diameter d, with a step hg horizontally and with a step hb vertically, equal to each other, which are with the ratio hg = hw = (3.0-6.0) d.

Between the inner surface of the front wall of the sash and the surface of the post, a vertically oriented air cavity is formed at the ends.

In each transverse perforated end wall of the sash there are bushings with holes in them for the hinge pin.

The left wing of the door is made with a fold of the leaf of the wing wall, while the fold is located on the inner side of the wing along its entire length, extends towards the right wing and in the closed position of the wings, the fold is closed from the inner side of the door by a horizontal lock of the right wing.

Figure 1 shows a cabinet door in a working position, front view.

Figure 2 is a cabinet door, rear view.

Fig. 3 is a cabinet door, top view along arrow A in Fig. 1.

Figure 4 - place B in figure 3.

Figure 4 is a section b-b in figure 2.

Figure 5 is a section b-b in figure 2.

Figure 6 is a section L-G in figure 2.

Fig. 7 is a left wing leaf, front view.

Figure 8 is a right wing flap, front view.

Figure 9 - left door leaf, rear view.

Figure 10 is a right wing flap, rear view.

In Fig.11 - place D in Fig.1 in an enlarged form.

FIG. 12. - view E in figure 10, the location of the horizontal door lock.

Fig. 13 is a fragmentary rear view of the upper part of the right wing of the door.

Fig. 14 is a fragmentary rear view of the upper part of the left wing of the door.

Figure 15 is a fragment of the upper part of the right wing of the door in the rear view in

with the location of the end walls after their connection with the L-shaped

limbs.

Figure 16 is a fragment of the upper part of the left wing of the door in the rear view in c

bend made on the side wall.

In Fig. 17-26, the shape and location of different variants of holes in the walls

door leaves.

This metal double-leaf cabinet door is universal, it is designed to be installed mainly in the doorway of a metal cabinet, and it can also be installed in the doorway of a cabinet made of non-metallic materials.

This description presents a two-leaf door having a left wing 1 (Fig. 1) and a right wing 2, which are hinged in the cabinet doorway (hinges and cabinet are not shown).

The flaps are fixed to each other in the working position of the door by the door lock 3 so that in this position the flaps are essentially connected to each other by the horizontal latch 7 of the lock 3. A nest is made in the right flap 2 in which the lock body is fixed 3. The lock cylinder is connected by rods 4 and 5 (figure 2) with two vertical locks 6. The locks 6 when closing and opening the door leaves move in the vertical direction. In this case, the vertical locks 6 engage with the transverse elements of the cabinet body (not shown) and are fixed in the working position. Each sash has a box-like shape and, in this regard, it has end top, bottom and side walls, the thickness of each of which at the end can be in the range of 15.0-40.0 mm, depending on the size of the cabinet.

The lock 3 has a horizontal latch 7 (Fig. 2) interacting with the left flap 1 (Fig. 2.5) when the flaps are fixed to each other in the closed position of the door. The left door leaf is fixed in the cabinet doorway. The lock 7, when turning the lock handle, moves along a radius and moves in a horizontal direction, engages with the left flap 1 and is fixed in the cabinet opening simultaneously with fixing the vertical locks 6 of the lock.

It is possible to install the door leaves using such a lock, which has only vertical locks 6. In this case, the left door leaf is fixed by pressing the right leaf against the left wing rebate, followed by fixing the leaves with vertical locks 6.

The leaves of a double-leaf door have the same dimensions and differ: by the presence on the left leaf of a fold 21 for the right wing of the door to be attached to it; the location on the right wing of the door of the holes (not shown) for installing the lock body complete with locks on the right wing.

Each door leaf has a front wall 8 (Fig. 1) made of a perforated metal sheet, thin within 1.0 mm. In the process of manufacturing the flap, the blank sheet is sequentially bent as shown in FIGS. 13-16. The curved end parts of the sheet form a reinforcement belt 9 closed along the flap perimeter (Fig. 15), which is formed by L-shaped folds 10 of the metal sheet. The folds 10 are a continuation of the front wall 8, which is made of a perforated sheet. The mentioned reinforcement belt 9 is formed by the longitudinal and transverse L-shaped folds of each door leaf.

Each perforated wall of each door leaf is formed by a plurality of holes (FIGS. 19-26) having a circular shape (FIG. 19), or a rectangular elongated shape with a horizontally arranged longitudinal axis (FIG. 20), or a square shape (FIG. 21), or a hexagonal shape (Fig. 25), or an oval shape (Fig. 24), or in the form of separate groups of honeycomb-shaped holes (Fig. 26).

The holes can be arranged in rows, the rows of holes can be offset or not offset from each other. Round holes preferably have a diameter of 2.0 mm to 6.0 mm, square holes with a side ranging from 2.0 mm to 4.0 mm, hex holes with a circumscribed circle diameter of 2.0 mm to 4.0 mm. It is possible to use other types of holes - rectangular, oval, oval with an offset relative to each other and holes.

When the centers of adjacent holes are connected with straight lines, these lines form square, rectangular, triangular, and polygonal shapes. Shown in FIG. 19-26, the holes can be located in the walls of the door leafs in separate groups or sequentially-evenly over the entire area of the wall of each door leaf.

Figure 11 shows one of the examples of the implementation of circular holes with a diameter d, with a step hg horizontally and with a step hb vertically. equal to each other, which are in the ratio hg = hv = (2.0-6.0) d.

The double door is installed in the opening of a cabinet (not shown) having a relatively wide door opening. The door is implemented in the cabinet design with the following overall dimensions: H x W x D = 1850 x 700 x 390mm, where H is the cabinet height, W is the cabinet width, and D is the cabinet depth.

The door opening of the specified cabinet has a width of about 700 mm and for such a width, each door leaf is made lightweight. It has, in cross-section, a thin perforated sheet having a minimum thickness t (Fig. 6). In order to exclude bending of the sash during operation, it has volumetric upper and lower identical transverse end walls 11 (Fig. 2) and identical volumetric left and right end walls 12. In addition, each sash is reinforced with a support 13 pressed from a thin metal sheet in the form of a channel in cross section (Fig.2.5).

Between the ends of each post 13 and the end transverse walls 11 of the flap, air gaps 14 (Fig. 2) are formed, communicating with the air cavity inside the post 13. Each post 13 is made with flanges 15 at the ends (Fig. 4), while the middle part of the post 13 has a U-shaped profile in cross-section. The flanges 15 of the pillar 13 form the end parts of a U-shaped profile, they extend in opposite directions from each other and each of them is located so that it is parallel to the front wall 8 of the sash, snugly adheres to it and at the same time is connected to the wall along the entire height of the pillar 13.

In the connection of the flanging 15 of each pillar 13, the front wall 8 of the sash and the stiffening belt 9 formed by the L-shaped bends 10 create the necessary rigidity of the door sash, which meets the requirements for creating such a sash that has the lowest possible mass and is resistant to bending.

In the end wall 11 of the left flap 1, below and above (Fig. 3) there are bushings 16 and 17 for the end of the pin of the pin loop located in each of them (not shown). The other end of the hinge pin is fixed in a cross member of a door cabinet (cabinet not shown). Two hinges of the indicated type are used for hanging the left sash in the cabinet opening.

At the bottom and at the top, the right flap 2 (Fig. 5) has bushings 17 for the end of the hinge pin located in each of them. At the bottom and at the top, the right flap 2 (Fig. 5) has bushings 18 for the end of the lock 6 (Fig. 2) located in each of them.

Two hinges of the indicated type are used for hanging the sash in the cabinet opening. When in the working position the flaps 1 and 2 are closed along the closing line 19 (Fig. 1) with a gap 20 between the flaps, then the horizontal lock 7 (Fig. 5), associated with the drive of the lock mechanism 3, is wound behind the bend 21 of the left flap of the door from its inside. All bushings 16-18 are thin-walled, each bushing has a through hole and its wall is rigidly connected to the end walls of the door leaves.

The left flap 1 (Figs. 3-5) has a bend 21 located along the length of the flap on its rear side. Bend 21 increases the rigidity of the left wing and is a rebate for the right wing of the door.

As one example of the use of a perforated sheet for the manufacture of door leaves, Fig. 11 shows a fragment of the front wall 8 of the door. Such a wall 8 has a plurality of small circular openings 22, which are cut through the sheet during the manufacture of the perforated sheet of the sash wall 8. Holes 22 are staggered or otherwise arranged in order to avoid stress concentration in dangerous sections of the sheet when it is bent in two opposite directions. The diameter d of each hole is set in the range of 2.0-6.0mm, the pitch hw in the vertical direction is equal to the pitch hg of the holes in the horizontal direction. Moreover, each step is in the range of 5.0-18 mm for the specified limits of the hole diameter d = 2.0-6.0 mm, which meets the requirements for a given bending stiffness of the door leaf.

Within the specified limits of steps horizontally and vertically with a corresponding sheet thickness t within 1.0 mm, the door leaf has optimal rigidity, minimum weight and minimum permissible deviations when it bends in the plane of the door leaf for the specified types of cabinets. This ensures a tight fit of the door sash to the cabinet elements that form its opening. With these ratios, the sash weight and rigidity are optimal. In comparison with the solid walls of the doors, the weight of this door is reduced by 20-30%, and the load on the hinges and the load-bearing elements of the cabinet is reduced.

It is essential that all the end walls of the door leaf are made perforated from one perforated sheet blank - by bending the blank on bending equipment.

Between the inner surface of the sheet 8 and the inner surface of the rack 13, a vertically oriented air cavity 23 (Fig. 5) is formed, which serves as an air duct, facilitating ventilation and air movement from the room to the cabinet and vice versa. This movement occurs both in the process of opening and closing the doors of the cabinet door, and during the operation of the latter in cases of temperature and air pressure differences in the cabinet cavity and in the room.

The left wing of the door is locked by the right wing, in which the lock body 3 is installed with a turnkey larva 24 located in it (Fig. 1). The lock is made with a three-sided crossbar locking system, it has the above-mentioned upper and lower vertical locks 6 (Fig. 2) and a flat horizontal lock 7, wound behind the bend 21 of the left flap (Fig. 4). The diameter of each vertical lock 6 is chosen to be 7mm. The locks 6 are in working position when they are inserted behind the transverse elements of the cabinet frame (the cabinet frame is not shown). The lock 7 is in the working position when it is wound behind the bend 21 of the left flap (Fig. 5).

The door leaves have a powder coating of predominantly dark colors, which does not exclude other colors in accordance with the RAL range. The inner surface 25 (Fig. 5) of each pillar 13 is coated with a light paint contrasting with the indicated dark color of the flap wall 8 so that in the front view of each flap - the light color of the inner surface 25 is seen through the perforation holes 22 of the flap sheet 8 as a light strip dividing monotonous dark coloration of the valve in two parts. A decorative effect is created, which is achieved by the rack, which has a solid wall without holes. This effect is achieved due to light refraction when light hits the perforated door leaves. To enhance this effect, it is possible to paint the perforated or non-perforated post 13 in different contrasting color tones. The door leaf strips obtained in this way can be of different colors to facilitate the search for the desired cabinet when the cabinets in their set are arranged in a row.

Each flap of the cabinet door is designed to be installed in the inner opening of a cabinet (not shown), the space of which is divided by removable, height-adjustable shelves (not shown) with a step of about 170 mm. The depth of each shelf is about 300mm.

During the operation of the cabinet, the door sashes open and close by turning them on the hinges, while in the case of closing, the left sash 1 is fixed in the door opening, and the right sash 2 is locked with vertical locks 6 (Fig. 2), which are moved by turning the larva 24 by means of a key or the handle in the lock body 3. When the larva 24 (Fig. 1) turns, the movement to the locks 6 is transmitted through the rods 4 and 5, and the movement to the horizontal lock 7 is transmitted from the rotation of the larva. As a result, the right sash is connected to the left sash by a lock 7, and it is also connected by locks 6 to the cabinet body elements. In this position, the left wing is in the locked position.

The door is made lightweight due to the described perforated design of each door leaf, as well as thanks to lightweight struts 13 and a lightweight contour of stiffness 9 of each leaf. As a result of the use of lightweight door leaves, the loads on the front part of the cabinet body are significantly minimized, which is less stable and less durable due to the large doorway made in it and due to the fact that the front part of the cabinet is most exposed to loads during the operation of the cabinet.

The original solution of the door made it possible to significantly reduce its weight through the described layout of the sash, as well as by redistributing the loads on the load-bearing elements of the door leaves, which in turn made it possible to reduce the cross-sections of the load-bearing elements of the cabinet. The perforation of the side panels of the door leaves has created a stylish appearance of the door in a modern trend.

Cabinets of this type have various modifications - they are used in ventilated archival storages, supermarkets, sports halls and offices.

At the same time, the door design makes it possible, with minimal transformation by the user, to easily change the layout solutions of the cabinets and their functional purposes, since each door leaf is made unified, mating with other similar leaves that form the given structures.

Claims (5)

1. The door for the cabinet, containing the doors, which are interconnected in the working position by a lock, each door is made of a perforated sheet, the edges of which are curved inward of the door and rigidly connected to each other in a closed reinforcement belt located around each door, the latter has a transverse and longitudinal sections of a box-like shape, inside which there is a U-shaped cross-section stand with flanges at the ends extending in the opposite direction from each other so that they are parallel to the front wall of the sash, fit tightly to it and are connected to it along the height of the stand, while an air cavity is formed between the inner surface of the post and the inner surface of the perforated wall of the sash, and each end wall of the sash is formed by the inwardly bent edge of the front wall of the sash. 2. The cabinet door according to claim 1, characterized in that each perforated wall of each sash is formed by a plurality of holes with a diameter d, with a step hg horizontally and with a step hw vertically, equal to each other, which are with the ratio hg = hw = ( 3.0-6.0) d. 3. A cabinet door according to claim 1, characterized in that a vertically oriented air cavity is formed between the inner surface of the front wall of the sash and the surface of the rack. 4. A cabinet door according to claim 1, characterized in that bushings with holes in them for the hinge pin are fixed in each transverse perforated end wall of the sash. 5. The cabinet door according to claim 1, characterized in that the left wing of the door is made with a fold of the leaf of the wing wall, while the fold is located on the inner side of the flap along its entire length, extends towards the right wing, and in the closed position of the wings, the fold is closed with the inner side of the door with a horizontal lock of the right wing.

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