SU1480752A3 - Dumb-waiter table - Google Patents

Abstract

A table has extension leaves 26 secured to opposite edges of the table top by hinges 30. The hinges include a first hinge member 84 which is secured to the leaf and a second hinge member 90 which is connected to the table top and is slidable in a channel 104 relative to the table top. The first and second hinge members are pivotally connected to one another by a pivot pin 96 carried by the slidable second hinge member and received within an elongated slot 88 of the first hinge member. A rigid stop 100 is secured to the second hinge member and spaced away from the pivot pin 96 a distance such that the stop prevents pivotable movement of the leaf when the latter is vertical and the pivot pin 96 abuts the end 89 of the slot 88. The second hinge members 90 of hinges on opposite sides of the table may be connected by a spring (110, figure 4). <IMAGE>

Description

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FIELD OF THE INVENTION The invention relates to furniture, in particular, to tables with folding boards and a mechanism for swiveling boards with tabletops.

The purpose of the invention is to improve the convenience of operation ,.

Natfig 1 shows the table, general view, axonometrics; in fig. 2 shows a table with a lid in a vertical position for storage; FIG. 3 — table with lid tilted to the use position, side view; in fig. 4 - table with a lid in a horizontal position, with folding boards in the upper vertical position, side view of the end; in fig. 5 - overhang mechanism; in fig. 6 - channel with fixing element, axonometric; in fig. 7 - articulated and locking mechanisms for table shelves, axonometrics; FIGS. 8–10 — unit for connecting a table cover with a folding board when it is sequentially moved from a horizontal to a vertical position, side view

The table contains a support 1 and the cover 2 of the table, hinged on the support 1. Two folding boards 3 and 4 are fixed on opposite edges 5 and 6 by means of canopies 7, 8, 9 and 10.

Bearing 1 includes a pair of spaced apart longitudinal parallel elements 11 and 12 of the base, which are provided with wheels 13-16 and by means of elements 11 and 12 of the installation

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are placed on a horizontal surface 17. Support 1 also includes a pair of vertical posts 18 and 19 arranged perpendicular to the elements 11 and 12 of the base, respectively. The posts 18 and 19 are connected by a horizontal bar 1 20. The flip-side 21 of the table cover 2 is provided with a pair of parallel channels 22 and 23 spaced apart, adjacent to the parallel edges 5 and 6, respectively. Channels 22 and 23 are spaced apart by a distance greater than the gap between racks 18 and 19. Channels 22 and 23 are identical, each of them is an extruded profile having a U-shaped channel part 24. Vertical strut 25 connects channel portion 24 with a horizontal mounting flange 26 attached to the back side 21 of the cover in any known manner, for example with a plurality of screws. Channels 22 and 23 are attached to the back side 21 of the lid 2 by the respective sections 27 and 28 facing each other.

A rod 29 is fixed on the upper part of racks 18 and 19, the length of which ensures that its ends 30 and 31 protrude to racks 18 and 19 and enter channel sections 27 and 28, respectively.

The free ends 30 and 31 of the rod 29 are provided with plastic slide 32 and 33, which are installed with the possibility of sliding movement in the channel sections 27 and 28. A pair of supporting rollers 34 and 35 are hingedly connected to the channels 22 and 23 at points

36 and 37 and pivotally connected to the uprights 18 and 19 at points 38 and 39.

The channel 22 has a lock 40, the surface 41 of which abuts against the outer surface of the channel 22. The outwardly extending section 42 connects the locking surface 41 with the handle 43, which is removed from the outer surface of the channel.

The latch 40 is pivotally connected to the channel 22 by means of a bolt 44 passing through the channel 22 and the carrier spring 45, the envelope bolt 44 and located between the channel 22 and the lock nut 46. On the channel part 27 a hole 47 is made, in which the plastic slider 32 is rotated turning the table cover 1 to a horizontal position.

The locking surface 41 of the retainer 40 is provided with a bent tab 48, which is sized to fit into the hole 47 and interact with the locking edge of the plastic slider 32.

When the handle 43 is gripped and fed toward the channel 22, it turns on the bolt 44, and the locking tab 48 comes out of engagement with the edge 49. When released, the table cover 1 can be tilted to the vertical storage position,

Sheds 7-10 folding boards 3 and 4 are made the same. Each of them includes the first element 50, having a mounting plate 51 fixed on the back side of the board, and a tongue 52, passing perpendicular to the plate 51, longitudinally positioned and having a rounded end 53 ″. The long groove 54 of the tongue is parallel to the mounting plate 51.

The second element 55 of each of the pumps 7-10 is a rectangular rod having such a size that it can be installed with the possibility of sliding in the channel 22. This element 55 has a hinged end 56 with an axis 57 located mainly parallel to the edge 5 or 6 table covers and perpendicular tongue 52 of the first canopy element 50.

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The axis 57 extends past the oblong groove 54, the first 50 and the second 55 elements of each are pivotally attached to each other by weight.

An anvil 58, which is a steel bar, is mounted on the second canopy element 55 on the side of the hinge axis 57 opposite the hinge end

10 56. The stop is centered on the second element 55 in order to have a vertical locking surface 59.

The locking surface is removed from the hinge axis 57 for a distance of not much greater than the radius of the rounded end 53 of the first canopy element 50. The distance from the hinge axis 57 to the locking surface 59 is smaller than the radial distance from the second end 60 of the elongated groove 54 to the end 61 of the tongue 52.,

There are a pair of parallel channels 62 and 63 spaced apart between them, located generally perpendicular to edges 5 and 6. Channels 62 and 63 pass almost the entire length in the reversing surface of the cover 2. the table. The canopies are centered on the folding boards 3 and 4 so that the canopies 7 and 8

30 mounted on the board 3 of them first

elements 50. Similarly, canopies 9 and 10 are installed by their respective first elements 50 on a folding board 4. The canopies are attached to their respective boards 35 so that their second elements 55 are opposite and centered relative to each other.

Channels 62 and 63 are identical in construction with channel 22 and each

40 has a channel section 64 and 65, respectively. The second elements 55 canopies in size are made so that they can be installed with the possibility of sliding in channel

45 sections 62 and 63 so that the second elements 55 of the canopies are slidably positioned at opposite ends of the channel sections 64 and 65 of the channels 62 and 63. The opposite ends of the second elements of the canopies 55 are equipped with racks 66-69. The springs 70 and 71 interconnect the posts 66 and 67 and the posts 68 and 69, respectively, directing the second canopies 55 attached to them to each other.

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Channel sections 64 and 65 (Fig. 91 are at the same distance from the back surface of the table as the long groove 54 of the first canopy element 50 is removed from the back of the folding boards so that when the boards are horizontal, flush with the lid the table, opposite edges of the table cover and folding boards were centered and rested against one another, and the opposite edges of the table cover and boards were rounded at the upper surface and angled inside.

A pair of boards 72 and 73 of the boards (FIG. 2) is provided for resting the folding boards 3 and 4, respectively, in the position when the folding boards are mounted with the table top 2. The supports 72 and 73 of the boards are made identical.

Each of the supports 72 and 73 includes channel elements 74 and 75, which are extruded profiles identical in cross section to channel 22. Channels 74 and 75 are centered, and its channel section is located mainly transversely to the opposite edges of the board 3 and the lid 2 tables. The hinge boards 72 and 73 include a rod 76, having a size that allows it to be installed slidably in the channels 74 and 75 and passes through the hole 77 made in the channel 22. The free end of the support rod 76 is provided with a handle 78 which is turned inwards from the support rod 76 at an appropriate angle to it is approximately 90 or any other angle. The support bar 76 is slidably mounted in channels 74 and 75 between the first position, when the handle 78 is under the table cover 2, to allow the pivoting board 3 to rotate freely. The support bar 76 can be moved to the second position, when the handle 78 is located under the folding board. An accurate installation in the extended folding of the support bar 76 is provided by a stop 79 fixed to the inner end of the support rod 76, which rests on the channel 75 when the support rod 76 is extended to the desired full stroke. In the fully extended position, the handle 78 is located coaxially with the opposite strut 80 mounted on the reverse surface, folding access

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ki The spacer 80 has a surface opposed to the handle 78 remote from the flap 3 at a distance sufficient for the spacer to hold the support plate on the handle 78 when the board 3 is flush with the table lid 2. The spacer 80 is provided with an inclined surface 81 opposite the channel bar 22. Each of the folding boards 3 and 4 is provided with an operator handle 82 and 83 mounted on and under its surface centrally located on the outer edge of the reverse sides of the folding boards 3 and 4, respectively,

Bearing 1 is provided with a pair of shelves 84 and 85 located on opposite sides of racks 18 and 19. As can be seen from FIG. 1 and 7, shelves 84 and 85 are the same.

Shelf 84 includes a pair of parallel side walls 86 and 87 spaced apart, which are hinged to base 11 and 12 by means of hinged axes 88 and 89. The hinge axes 88 and 89 are located in oblong slots 90 and 91 of side walls 86 and 87 respectively. Axes 88 and 89 are distant from vertical posts 18 and 19 a distance sufficient for side walls 86 and 87 to rotate freely on axes 88 and 89 when the axes interact with the first ends 92 of the elongated grooves 90 and 91. When the hinge axes 88 and 89 interact with the second ends 93 of the elongated grooves 90 and 91, the walls 86 and 87 abut against the uprights 18 and 19, as a result of which the rotation of the side walls ceases. The side walls are connected by crossbars 94 and 95, with crossbar 95 having a notch 96 located in its center. The horizontal flanges 97 of the wheels: 13-16 form a support for the side walls 86 and 87 when the flanges are turned down.

The table is used as follows.

When the table is in the position for use in the hotel room, the folding boards 3 and 4 are fully extended and flush with the table cover 2. Shelves 84 and 85 can be tilted up or down, as indicated by the arrows in FIG. 3. When turning the shelves from position up to

the lower position, the crossbar 95 is gripped and raised until the hinge axles 88 interact with the first ends 92 of the slots 90 and 91, and at this point the shelves can be rotated to the lower position where the side walls 86 interact with mirrors 97. During transportation The table shelves can remain in the down position, with notch 96 providing a suitable gap for the corners and feet of the operator pushing the table along the corridor.

When the table is in the working position for use in the room, the folding boards are flush with the table cover and the tab 52 of the first hinge element 50 is located in a horizontal plane, basically coinciding with the second hinge element 55. In this position, the springs 71 and 72 tighten the opposite elements of the canopies 55 together with the hinge axes 57 located under the table top 2. The opposing rounded edges of the table cover and the folding boards abut each other. The handle 78 of the support rod 76 interacts with the spacer 86, which holds the opening boards in the corresponding centered position with the table top. In addition, the table cover is inclined to its horizontal position, with the locking element 48 of the retainer 40 interacting with the locking edge 49 of the plastic sliders 32 and 33, forming a locking connection. FIG. 9 shows the canopy 10 when the board 4 is in the extended (extended) position flush with the table top 2.

From the position described above, the folding boards can be moved to the upper or lower position. To move the flap 4 to a lower position, for example, shown in FIG. 10, the operator takes the handle 83 of the board with one hand, and with the other hand takes the handle 78 of the support 74, the supporting rod 76 is pushed into position when the handle 78 is under the table cover 2. The force of gravity causes the now retained board 4 to turn on axles 57, with the board 4 generally moving in a vertical position to its edge located under the edge 6 of the table top, since

The pivot point is under the table top. In these positions, the sliding elements 55 of the sheds are fully displaced in channels 62 and 63 so that the stops 58 abut against the outer surfaces of the channels.

When the board has to be moved to install it in a vertical position above the table top (as shown in Fig. 8, where the flap 4 reaches the vertical position), the operator grabs the flap handle 83 and rotates the board around the hinge axes 57. When the board 4 reaches generally horizontal position, the edge of the board abuts against the opposite rounded edge 5 of the table top and continues to rotate, with the opposite rounded edges rolling along each other.

Thus, the edges of the flap and the table top become part of the overhang mechanism. When the flap 4 of the table continues to move mainly to a vertical position, the board 3 rotates at opposite edges, with the tongs 52 pulling the sliding elements 55 of the canopy out of the channels 62 and 63. The sliding movement of the canopy elements 55 is compensated by springs 71 and 72. When the folding board is in a vertical position, the elements 55 are in their fully extended position and the elongated grooves 54 of the tabs 52 are arranged vertically. FIG. 5 shows the canopy 7 in its vertical position above the table lid 2. In this position, shown in FIG. 5, the tabs and the board are lowered vertically until the axes 57 are abutted into the second ends of the slots 54, with the edge of the folding board 3 now below edge cover 2 tables. In this position, the lugs 58 interact with tabs that prevent further rotary movement of the elements of the canopy. To move the flap 3 back to a horizontal position, the operator grips the board handle 83 and lifts the entire board 3 until the tabs move so that the first ends of the grooves 54 will not interact with the axles 57 and at this point the gap between the hinge axes and the stops 58 will be sufficient to

provide the ability to rotate the rounded edges of the tabs. When the operator rotates the flap back to a horizontal position, the opposite edges of the plank and the table are rolled together and the sliding elements 55 of the sheds are fed back to the channels 62 and 63 by means of springs 71 and 72.

If it is necessary to tilt the table cover from a horizontal position to a vertical operator, it grips the handle 43 of the lock 40 and feeds the handle 43 towards the channel 22, Elahadar, to the hinge fixing of the lock, the locking element 48 is pulled out of the hole 47, resulting in the channel 27 in the plastic slide 32 freely slid against each other.

Claims (1)

The convenience of using the table has been made using the same extruded profiles as well as Czech ones. Invention Formula A table containing a support, a table cover with two folding boards, means for connecting the cover with a support, canopies, each of which includes first and second elements connecting between one of the opposite edges of the table cover and the edge of the folding board with the possibility of moving the folding board horizontal position coaxially with the table lid, to the upper or lower vertical positions and back, and the means of locking the folding board in vertical positions, with the second canopy element mounted on the table top, the first the element is fixed on the folding board and has an oblong groove, and both elements are hingedly connected to each other by is made by the fact that in order to move the axle installed in the elongated From the vertical position above the table to the position flush with the table, the operator should only lift the table cover, overcoming the force of gravity, and should not rise against the additional force applied by the spring, as was previously required. The design of the table provides a relatively simple and smooth operation with thirty the groove of the first element, and the spring means for holding the flap in horizontal and vertical positions, characterized in that, in order to increase ease of operation, it is provided with guides arranged on the reverse side of the cover, installed parallel to its longitudinal axis, and positioned perpendicular to its edges with flank boards, providing 35 ways to hold the flap in Complete and interference free installation of the serving table. In addition, since the folding boards move from a vertical position above the table cover to a horizontal position flush with the opposite edges of the table cover and the folding boards form a hinge point for a pivoting action, the canopy mechanisms do not open during these movements, thus avoiding the likelihood of contamination tablecloths, as well as the need to open the eyes of guests unpleasant canopy mechanism. In addition, when turning down, the folding boards are more compact, which facilitates movement through the narrow high aisles of hotels, as well as reduces the size requirement for table storage. The device is economical, since all channel elements can be 0 the groove of the first element and the spring means for holding the flap in horizontal and vertical positions, characterized in that, in order to increase the ease of operation, it is provided with guides arranged parallel to its longitudinal axis and arranged perpendicular to the back side of the cover Harnesses its edges horizontal position, the first element of each overhang has a protruding tongue, and the second - transverse stop interacting with the lateral sides of the overhang, while in the vertical position of the folding board, the axis of the hinged connection of the overhang elements is located in the upper end, and when the folding board is horizontal, the end face of the elongated groove of the first overhang element, the spring means are placed in the guides for the elastic retraction into them with the possibility of the second overhang elements sliding, and The opposite edges of the cover and the folding board have a curved surface to provide contact rolling when the folding board moves from the first position to the second. four H 1b 26 6 71 FI.5 nineteen 12 66 fi & .7 fi & in 92 SO  I - - ±: idi is G 50 Editor H Kistulinets Compiled by S. Brazhnik Tehred L. Serdyukova Proofreader U. Petrov Order 2562/58 Circulation 468 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 FIG. YU Subscription