DE1165221B - Collapsible table - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Boarding school Class: A 47 b

German class: 34 i- 5/01

Number: 1 165 221

File number: W 23182 X / 34 i

Filing date: April 22, 1958

Opening day: March 12, 1964

There are already collapsible tables known that consist of two with their bottom Foldable tabletop halves exist. The tabletop halves are divided by three Pairs of legs supported with horizontal, parallel to the narrow sides and below the table level lying axes are articulated. Each plate half is in the outer third as well as the plate halves connecting hinge directly supported. So that the pairs of legs are always vertical, they are one below the other and connected to the table top with handlebars. The middle of the table top is used to fold it raised, the tabletop ends each pivot around the horizontal axis of the outer one Pair of legs down and are pushed against each other at the same time, so that the folded Table with the upright halves of the table takes up little space. With these constraints is the height of the middle pair of legs is not adjustable, so that only two pairs of legs are available when the floor is uneven stand up.

In another known construction with two articulated table top halves, which are carried by three controlled pairs of legs, the middle pair of legs is not with the Table top hinge, but only with the main links, in a third of its height, articulated and is kept in a vertical position by springs. The main links are to the Table top halves hinged and connected to the outer pairs of legs by auxiliary links. The table top only supports itself in the unfolded position on the middle pair of legs with the help of the table top joint on a small support surface. When setting up it must be ensured that the table top joint comes to rest on the support surface. Furthermore, the table top hinge pin is in long slots of the hinge arms so that slight unevenness in the floor does not impair the support. Finally the table tops are arranged in the area of the hinge at a small distance, so pinching of the fingers when unfolding is avoided.

It is therefore the task of the middle pair of legs to be linked in such a way that the support position is inevitably reached when unfolding. According to the Invention serves as the only connection of the middle pair of legs with the rest of the table one at or near the table top joint, which also allows the table joint width to be changed until it is completely closed can be adjustable, arranged articulated connection and are guide or support means on the links Collapsible table

Applicant:

Kermit H. Wilson, Minneapolis, Minn.

(V. St. A.)

Representative:

Dr. W. Müller, patent attorney,

Bonn, Koblenzer Str. 46 a

Named as inventor:

Kermit H. Wilson, Minneapolis, Minn.

(V. St. A.)

Claimed priority:

V. St. ν. America October 25, 1957

(No. 692 965)

for the middle pair of legs, for example in the form of Recesses, brackets or the like. For a connecting rod of the middle pair of legs, which in the lower half of the leg height, or bracket on the middle pair of legs for a connection axis of the Pairs of handlebars provided so that the middle pair of legs when unfolding the table inevitably led into the support position and in the vertical position when the position of use is reached can be retained.

The setting of the table joint width has no influence on the position of the middle pair of legs, ie it is neither raised nor lowered and also not tilted.
Further details and advantageous design options are explained in more detail with reference to the drawings, namely shows

F i g. 1 is a view of the table from above, with part of the table tops broken away and some Parts are drawn in section,

F i g. 2 shows a side view of FIG. 1,

F i g. 3 is a side view of the table in one position between the use position and the folded storage position,

F i g, 4 a side view of the table in the folded position,

Fig. 5 is a front view of the unfolded table with some parts broken away,

409 538/14

F i g. 6, on an enlarged scale, the link axis with springs according to FIG. 5, partly in section,

7 shows an enlarged illustration of the table top hinge according to line 7-7 in FIG. 1, in the narrowest position, d. H. when abutting Table top halves,

F i g. 8 a second setting of the hinge with a gap between the tabletop halves, F i g. 9 the connection or 16 protrudes on an enlarged scale. The horizontal hinge arm parts are provided with a pair of spaced holes 30 and 31 leading in to the table top parallel planes and can be connected to one another by hinge pins 32.

If the hinge pins 32 are inserted through the inner bores 30 of the hinge arms 26 and 27 according to FIG. 7, the tabletop halves 15 and 16 close in the position of use

of the middle leg with the handlebars close together in section along i °. This results during the

Afkl d Tihkki di Mlihki

Unfolding the table construction the possibility that the user pinches his fingers between the table top halves 15 and 16. However, in order to make the table construction foolproof, so that a small child can operate the table without the risk of pinching fingers while it is being opened, the hinge pins 32 are inserted through the bores 30 according to FIG. 8 plugged. Then the inner transverse sides of the table top halves 15 and iron, for. B. angle iron, reinforced. Around the table ^a ° 16 articulated to one another at a distance, the top plate halves 15 and 16 also to which the table is soon in the position of use. It is

there is absolutely no longer any risk of fingers being trapped between the inner transverse sides will.

The middle support leg structure 33 has a substantially Η-shape and consists of a Pair of laterally spaced parallel and substantially perpendicular legs 34 and one in the substantially horizontally arranged cross brace 35,

The table top halves 15 and 16 can thereby "3 <> The od at both ends by welding

Ends is attached.

The legs 34 and cross brace 35 of the support leg structure 33 are preferably made from steel tubing. The upper ends of the feet 34 are flattened and bored so that they by means of the hinge pin 32 can be suspended from the hinge arms 26 and 27. The hinge pins 32 can have heads and at one end

the outer frame 17 or 18 and on the other hand with 4 ° at the other end by cotter pins or the like the angle iron crosspiece 19 and 20 are fixedly attached to their position, so that the aforementioned

easy repositioning is given. In this way, the support leg structure 33 is at its top

the line 9-9 in FIG. 5 and

F i g. 10 another embodiment of this connection.

The table top consists essentially of two identical, longitudinally extending, generally rectangular table top halves 15 and 16, which od from wood, metal. The like. Can be made. Every The table top half is on the underside along the outer edge by frames 17 and 18 made of profile

To support butting transverse sides, there are transverse angle iron pieces 19 and 20 are provided, the short leg 21 of which lies on the plate and the long leg 22 of which protrudes downward beyond the end face and thereby extending between the inner ends of the outer frames 17, 18. The cross angle iron pieces 19 and 20 are held in place by welding to the outer frames 17 and 18.

End under the short leg 21 and in contact with the long leg 22 of the angle iron crosspieces 19 and 20 are brought and then connected to the outer frame 17 or 18.

Along the table top halves 15 and 16 and firmly connected to these is an inner frame, which consists of consists of a pair of spaced-apart angle irons 23 and by welding od. The like. On the one hand with

is. The normally horizontal leg 24 of the inner frame 23 lies on the underside of the associated Table top half 15 or 16 and can

45 bar connected to it by screws or the like, namely by means of the hinge pins. The downwardly protruding, normally 32, and the hinge arms 26 and 27, the vertical leg 25 forming a mounting flange,
as will be explained in more detail later.

The hinges for the pivoting connection of the adjacent inner ends of the table top halves 15 and 16 consist essentially of two L-shaped each rigid hinge arms 26 and 27. Each left hinge arm 26 is fixed to the angle iron crosspiece 20 connected, for example by welding

or the like, namely at a laterally offset distance 55 are pivotable on one table top half 15 each outside the inner frame 23, but laterally to or 16 between the outer free end and the hinged inside opposite the longitudinal edges of the associated inner end. Essentially that is Table top half 16. The right hinge arms 27 od the upper end of each leg 37 by a pin. are also pivotable on the angle iron crosspiece 19 on the vertical flange 25 of the attached, in such a position that it is hinged with 6o inner frame 23 between its ends.

The lower end 39 of each leg is with a roller

Pivot the end of the table top halves 15 and 16

Axis coincides with the hinge axis for the table top halves. The support leg construction 33 hangs freely from hinges 26,27,32.

Furthermore, two outer pairs of legs 36 are provided, each preferably a pair in the side Spaced legs 37 and a transverse part 38, which is fixed to the legs 37 by welding or the like. is connected, include. The outer pairs of legs 36

the hinge arms 26 correspond. Additional rigid horizontal struts 27 a, the one hand through Welding or the like, each connected to a hinge arm 26 or 27 and, on the other hand, to an inner frame 23 each are, support the attachment of the hinge arms 26 and 27. These each have one to the table top parallel part 28 and 29, which extends in the longitudinal direction over the associated table top half 15 40 provided to ensure the mobility of the table in the folded state and make it easier to unfold or collapse. It should be noted that the lower Ends 39 essentially in the longitudinal direction of the table top halves 15 and 16 turned outwards and - as in FIG. 4 is shown - over the vertical

5 6

kalen surfaces that are diverted from the table top halves 15 that they the pivoting movement of the outer and 16 can control pairs of legs 36 formed in the collapsed state. In detail they are become, protrude. This results in auxiliary links 55 pivotable on cross strut 38 an extraordinary stability of the Tisch Konstruk- aid of a sleeve 56 pivotally articulated, the tion when folded. 5 by welding or the like on the associated auxiliary In In this context, it should be mentioned that the handlebar 55 is rigidly attached while it is on the outer Pairs of legs 36 can be rotated on the associated cross strut 38 belonging to the table. The others plate halves 15 and 16 at a distance from the ends of the auxiliary links 55 are pivotable to the outer free end are pivotably articulated, attached to the handlebar cross struts 44 and 42, respectively. Serves for this The bushing 57, which is firmly welded to the auxiliary link 55, is smaller than the distance between the hinge and the outwardly turned ends 39 of the legs and on the associated crossbar 44 or 37. In this way, 42 is rotatable during the collapse. The auxiliary links 55 control the fold the table the outer edge of the table pivoting movements of the outer pairs of legs 36 of the plate halves 15 and 16 talk about the outward art that they are always in an upright position put turned leg ends 39 so that the table 15 remain while the table is being folded, plate halves parallel close together - as in The links 41 and 43 form a variable F i g. 4 is shown - are arranged. Angle whose apex is formed by axis 45 Furthermore, a handlebar construction is provided. They can thrive inwards around this axis be pivoted on the right half of the plate from a pair and the movement of the table-like rigid links 41 consists, which in side plate halves 15 and 16 from their position of use Lichem distance are arranged and by a in FIG. 2 in the storage position according to FIG substantially horizontally arranged cross brace 42 lead and support.

are connected to each other. This can be done by the movement of the table top halves 15 and 16 welding or the like. In addition, a pair of identical rigid links 25 is brought about on the left half of the plate from its use position into the storage position, in that the operator, who is provided at 43 at a lateral distance from one another at one end of the table, puts his hands on the one end of the table, which is also supported by a cross strut 44 places the outer edge of one of the tabletop halves with one another and are bound. The pair of links 41 is pressed with the right this forcefully downwards, whereby the table-top half 15 and the pair of links 43 is initiated with the collapse. Then the left half of the table top 16 are connected. The two table top halves 15 and 16 are pressed against one another, pairs of links 41 and 43 can be pivoted underneath until they have been folded together. The hinges are connected to one another by horizontally arranged movements of the table top halves 15 and 16 from axis 45. The handlebars 43 are the use in the storage position is a Schwenan their ends 46 rigidly by welding od. Like. With ken around the articulation axis on the outer pair of legs 36, the axis 45, while the handlebars 41 at 35 while the articulation axis is horizontal their ends 47 connected by welding bearing pushes inward. Carrying the inner ends of the table bushings 48, which move around the axis 45 in the plate halves 15 and 16 can rotate during the proximity of the ends of the link 43. At folding vertically upwards, the opposite ends 49 are the handlebars 41 freely hanging middle pair of legs vertically pivotable by pegs or the like with the legs 4 ° up, namely between the positions 25 of the inner frame 23 between the Linkage of the as shown in FIG. 2 and 4 are shown,
outer pairs of legs 36 and the inner end of the hinged when unfolding from the position according to table top half 15. 4 in the position of use according to FIG. 2, it is desirable for the links 43 at their ends 50 by means of pegs to provide means which guide the middle or the like with the inner frame 23 of the table top 45 pair of legs 33 in a vertical position . Further half 16 between the outer pair of legs 36 and towards it is quite essential to provide means which are articulated to the hinge 30. The axis 45 is subject to a lateral movement of the middle pair of legs half of the cross strut 35 of the support leg structure 33 33 in the position of use according to FIG. 2 between the pair of legs 33 and is essentially in hindrance.

a common vertical plane with the share 50. In the preferred embodiment of the table kidneys between the table top halves 15 and 16 construction according to FIG. 1 to 9, the ends 47 are arranged. of the pair of arms 41 and the ends 46 of the arm spring means in the form of a helical spring 51 are notched pairs 43, as shown in detail in so that they the pairs of arms 41 and 43 F i g. 9 is shown, so that strive to fold between the Lengendezuklappen to thereby 55 cores 41 and 43 an upwardly open slot 58 bildie table top halves 15 and 16 in their vertical det, which press in the position of use above the axis 45 position. According to the detail in Fig. 6 and the leg cross brace 35 takes up and it should be noted that one of the bearing bushes holds as soon as the middle pair of legs 33 is extended from the attached-48. The helical spring 51 surrounds this raised position according to FIG. 4 in the position of the elongated bearing bush 48. The end 52 of the 60 ground contact according to FIG. 2 arrives. Be it the helical spring 51, it is mentioned in a slot 53 at the end that in the event that the middle pair of legs 33 of the axle 45 is laterally offset or at an angle in the vicinity of the extended bearing, the leg transverse bushing 48 is arranged. The other end 54 of the strut 35 in contact with the links 41 or 43. Spring 51 is hooked around the arm 41, which comes and is guided into the slot 58,
extended bearing bush48 carries. 65 According to a modification in FIG. 10, two rigid auxiliary links 55 are in front of the notches of links 41 and 43, which see each forming slot 58 at an intermediate point of link 41, an inverted U-shaped link or 43 and the outer pair of legs 36 are provided in such a way that the leg cross brace 35

10 and is firmly attached thereto by welding or the like. The U-shaped link 59 forms a downwardly open slot 60 which can receive and encompass the axis 45 as soon as the middle pair of legs 33 from the raised position according to FIG. 4 to the position in contact with the ground according to FIG. 2 arrives. The overlapping of the U-shaped member 59 on the axis 45 prevents harmful lateral movements of the middle pair of legs 33 and causes the stability of the table construction in use position.

The open lower ends 61 of the U-shaped member 59 are bent outward for insertion of the axis 45 in the channel 60 to facilitate, however, the middle pair of legs 33 could possibly be swiveled sideways so much that the U-shaped link is missed and not encompassed. Such an amount of lateral pivoting is not expected, however, because of this possibility the embodiment according to FIG. 1 to 9 preferred, as this automatically applies to the middle pair of legs 33 is guided into the slot 58.

The lower ends of the legs 34 which come into contact with the ground are provided with friction feet 62 which are firmly seated on the ground and counteract a sliding of the table into the position of use. In the storage position, however, are the feet 62 are lifted upwards from the ground (see FIG. 4), the outer ones provided with rollers 40 Pairs of legs 36 ensure that the table is easy to move. In this position the table can easily and quickly brought to a place where it takes up a minimum of space.

Claims (1)

Claim: Foldable table, the table top of which consists of two, articulated table top halves, with three pairs of legs, which are connected with horizontal, articulated parallel to the narrow sides and axes lying below the table level as well as one below the other and are connected to the table top with handlebars, characterized in that the only connection of the middle pair of legs (34) with the rest of the table one at or near the table top joint (26,27,32), which is also used for Change of the table joint width can be adjustable up to complete closure, arranged Articulated connection is used and that on the links (41, 43) guide or support means for the middle pair of legs (34), for example in the form of recesses (58), brackets or the like., for a connecting rod (35) of the middle pair of legs (34) in the lower half of the Leg height is, or bracket (59) on the middle pair of legs (34) for a connecting axis (45) of the Pairs of handlebars (41, 43) are provided in such a way that the middle pair of legs (34) folds apart of the table inevitably guided into the support position and when the position of use is reached can be held in a vertical position. Considered publications:
U.S. Patents Nos. 2777 742, 2747 958,
699 978, 2 167 342. 1 sheet of drawings 409 538/14 3.64 © Bundesdruckerei Berlin