TABLE

20180055213 ยท 2018-03-01

    Inventors

    Cpc classification

    International classification

    Abstract

    A table has at least one table leg and a table top, the at least one table leg being pivotable relative to the table top, between an unfolded position and a folded position, about at least one first joint, wherein a strut is held on the table leg so that, at a first end, it is pivotable about a second joint, is provided for fixation of the table leg, and in the unfolded position of the table leg, it is operatively connected to the table top at a second end, opposite the first end. The table leg has a stop limiting the angle between the table leg and the table top in the unfolded position, such that the strut comes into frictional contact with the second end on a support surface held on the table top. In an unfolded direction of the strut, the support surface extends from a first end to a second end, and the distance from the first end of the support surface to the second joint in the unfolded position of the table leg is greater than the distance from the second end of the support surface to the second joint in the unfolded position of the table leg, so that, in the unfolded position, the strut is in self-locking frictional contact with the support surface.

    Claims

    1. A table having at least one table leg and a table top, wherein the at least one table leg (3, 4) is held so that it is pivotable relative to the table top (2) about at least one first joint (5, 6) between an unfolded position and a folded position, wherein a strut (12), which is held on the table leg (3, 4), so that it is pivotable about a second joint (13) at a first end (12a), is provided for fixation of the table leg (3, 4), and in the unfolded position of the table leg (3, 4), it is in operative connection with the table top (2) at a second end, which is opposite the first end, and the table leg (3, 4) has a stop (11), which limits the angle between the table leg (3, 4) and the table top (2) in the unfolded position of the table leg (3, 4), such that the strut (12) in the unfolded position of the table leg (3, 4) comes into frictional contact with the second end (12b) on a support surface (14) held on the table top (2), characterized in that in an unfolded direction of the strut (12), the support surface (14) extends from a first end (14a) to a second end (14b), and the distance from the first end (14a) of the support surface (14) to the second joint (13) in the unfolded position of the table leg (3, 4) is greater than the distance from the second end (14b) of the support surface (14) to the second joint (13) in the unfolded position of the table leg (3, 4), so that, in the unfolded position of the table leg (3, 4), the strut (12) is in self-locking frictional contact with the support surface (14).

    2. The table (1) according to claim 1, characterized in that in the unfolded position of the table leg (3, 4), the angle () between the table leg (3, 4) and the table top (2) amounts to 90100.

    3. The table (1) according to claim 1, characterized in that at least one spring element (15), which forces the strut (12) into a position unfolded from the table leg (3, 4), is provided between the table leg (3, 4) and the strut (12).

    4. The table (1) according to claim 1, characterized in that the support surface (14) is designed to be curved or straight.

    5. The table (1) according to claim 1, characterized in that the support surface (14) has a contact point between the first end (14a) and the second end (14b) of the support surface (14), on which the strut (12) is in self-locking frictional contact at its second end (14b) in the unfolded position of a table leg (3, 4).

    6. The table (1) according to claim 1, characterized in that the folding direction of the strut (12), a sliding surface (18) or step is connected to the support surface (14), wherein the strut (12) comes into contact with the sliding surface (18) or the step when the table leg (3, 4) is folded in.

    7. The table (1) according to claim 6, characterized in that the strut (12) comes into sliding contact with the sliding surface (18) for at least some phases when the table leg (3, 4) is folded up.

    8. The table (1) according to claim 1, characterized in that the strut (12) is pivotable about the second joint (13) between a position in which it is folded against the table leg (3, 4) and an unfolded position in which the strut (12) is in self-locking frictional contact, wherein in the unfolded position of the table leg (3, 4), the support surface (14) extends from a first unfolded angle (1) of the strut (12) up to a second unfolded angle (3) of the strut (12).

    9. The table (1) according to claim 1, characterized in that the strut (12) in the unfolded position of the table leg (3, 4) is in self-locking frictional contact with a contact point (14c) on the support surface (14) in the unfolded position of the table leg (3, 4), wherein the angle of the strut (12) to the support surface (14) amounts to 907.

    10. The table (1) according to claim 1, characterized in that the strut (12) is pivotable about the second joint (13) between a folded position on the table leg (3, 4) and an unfolded position in which the strut (12) is in self-locking frictional contact, wherein a releasable locking element (17) secures the strut (12) in the unfolded position.

    11. The table (1) according to claim 10, characterized in that the locking element (17) is formed by a pendulum, which is freely pivotable between the released position in which the strut (12) is released and a locked position in which the strut (12) is secured, depending on the alignment of the table (1).

    12. The table (1) according to claim 11, characterized in that the pendulum in the locked position cooperates with a rib (20) having a blocking effect and is pivotable away from the rib (20) and into the released position.

    Description

    BRIEF DESCRIPTION OF THE DRAWINGS

    [0015] Additional embodiments of the invention are now explained in greater detail on the basis of the following description of an exemplary embodiment and the drawing.

    [0016] In the drawings:

    [0017] FIG. 1 shows a front view of the table according to the invention,

    [0018] FIG. 2 shows a side view of the table according to FIG. 1,

    [0019] FIG. 3 shows a detail view in the region of the strut with the table leg unfolded,

    [0020] FIG. 4 shows a detail view in the region of the strut during the folding and unfolding of the table leg,

    [0021] FIG. 5 shows a detail view in the region of the strut in the folded condition of the table leg,

    [0022] FIG. 6 shows an enlarged detail view according to FIG. 3,

    [0023] FIG. 7 shows a side view of the table tilted onto its side,

    [0024] FIG. 8 shows a sectional diagram in the region of the detail X in FIG. 7, which shows the locking element in the locked position, and

    [0025] FIG. 9 shows a sectional diagram in the region of the detail X in FIG. 7, which shows the locking element in the released position.

    DETAILED DESCRIPTION

    [0026] The table 1 illustrated in FIGS. 1 and 2 is a folding table with a table top 2 and two table legs 3, 4. In the connecting region with the table top 2, each table leg 3, 4 has a crossbar 3a and/or 4a, such that each table leg 3, 4 is supported on the table top in such a way that it can pivot by means of two first joints 5, 6 at a distance from one another. The two table legs 3, 4 are each formed as a central mounting stand and have a diagonal foot bar 7 with feet 8, 9 in the lower region.

    [0027] The two table legs 3, 4 are designed to be identical, so that the remainder of the description refers only to table leg 3, although it logically also applies to table leg 4.

    [0028] FIGS. 3 to 5 show sectional diagrams along the line A-A in various folding positions of the table leg 3 with regard to the table top 2. The pivoting movement of the table leg takes place about a pivot axis 10, which is defined by the first joints 5, 6.

    [0029] In the unfolded position of the table leg 3 according to FIG. 3, an upper end 3b of the table leg 3 comes in contact with a stop 11, which is attached to the table top and limits the pivoting movement of the table leg 3 about the pivot axis. In this unfolded position, the table top 2 and the table leg 3 are aligned so they are essentially perpendicular to one another.

    [0030] To secure the table legs 3 in the unfolded position, a strut 12 is provided and is held at a first end 12a on the table leg 3, so that it can be pivoted about a second joint 13. The strut 12 here can be pivoted between an unfolded position according to FIG. 3 and an unfolded position on the table leg 3 according to FIG. 5, so that it can be pivoted about the second joint 13. The second end 12b of the strut 12 opposite the first end 12a comes into self-locking frictional contact with a support surface 14 mounted on the table top 2 in the unfolded position according to FIG. 3. FIG. 6 sows an enlarged diagram in this region.

    [0031] At least one spring element 15 is provided between the table leg 3 and the strut 12, forcing the strut 12 into a position in which it is unfolded from the table leg 3. However, the spring element could also be designed as a torsion spring in the second joint 13.

    [0032] In unfolding the table leg 3 from the position illustrated in FIG. 5 into the position according to FIG. 3, the strut 12 is thus automatically unfolded by the spring element 15 and snaps back into the position shown in FIGS. 3 through 6 after an intermediate position according to FIG. 4, so that in this new position, the second end 12b of the strut 12 comes into self-locking frictional contact with the support surface 14. The strut 12 is thus pivotable about the second joint 13 between a partially folded position on the table leg 3 and an unfolded position, in which the strut 12 is in self-locking frictional contact, such that, in the unfolded position of the table leg, the support surface 14 extends from a first unfolded angle 1 (for example, in the range of 9) to a second unfolded angle e (for example, in the range of 16) of the strut 12 (see FIG. 6). However, the strut 12 comes into self-locking frictional contact before the end of the support surface 14, for example, at an unfolded angle 2 of 12.5. The angle of the strut 12 to the support surface 14 amounts to approx. 7 at the unfolded angle 1, approx. 5 at the unfolded angle 2 and approx. 0 at the unfolded angle 3. Each angle is thus understood to include a tolerance range of 1.5, preferably 1.

    [0033] The support surface 14 is designed to be flat in the exemplary embodiment shown here but could also have a curved shape. It extends from at least a first end 14a to a second end 14b. The self-locking frictional contact comes about at a contact point 14c on the support surface. The distance from the first end 14a of the support surface 14 to the second joint 13 in the unfolded position of the table leg is greater than the distance from the second end 14b to the second joint 13. The length of the strut 12 is also somewhat shorter than the distance from the first end 14a to the second joint 13, so that the self-locking frictional contact occurs only at the unfolded angle 2. In the position according to FIG. 3, the strut 12 forms a static triangle with the table leg 3 and the table top 2 and is aligned approximately at a right angle to the support surface 14, thereby ensuring the self-locking frictional contact. Due to the spring element 15, there is contact between the strut 12 and the support surface 14 without any play, thus resulting in an absolutely rigid construction of the table after it has been set up.

    [0034] In the folding direction of the strut 12, a sliding surface 18, which is connected to the support surface 14, comes into contact with the second end 12b of the strut 12 in folding and unfolding the table leg (FIG. 4). For folding the table leg, first the strut 12 is folded until the unfolded angle of the strut 12 is less than 1. Then the second end 12b of the strut is free and the table leg 3 can be folded in. In further folding of the table leg, the strut 12 must not be held any longer but instead must come in sliding contact (i.e., non-self-locking contact) with the sliding surface 18 in at least some phase, so that in the wake of the folding of the table leg, there is a synchronous folding of the strut 12. However, to do so, the sliding surface 18 need not cause the entire folding movement of the strut 12. In the exemplary embodiment shown here, the strut 12 comes in contact with a protrusion 19 in the remaining course of folding the table leg 3, this protrusion concluding the folding movement of the strut 12 on the table leg 3 (FIG. 5).

    [0035] When unfolding the table leg 3 from the position shown in FIG. 5, one must only unfold the table leg into the position according to FIG. 3. The strut 12 automatically snaps into the self-locking frictional contact at the contact point 14c of the support surface 14, actuated by the spring element 15.

    [0036] In the exemplary embodiment shown here, a locking element 17 that is provided is designed as a pendulum, which can be pivoted about a pivot axis 21, to prevent inadvertent folding of the strut 12, in the condition in which the table has been set up. When the table has been set up according to FIGS. 3 and 8, the pendulum is in a locked position, in which it cooperates with a rib 20 on the table leg, so that the strut 12 can no longer be folded by hand. As soon as the table is turned on its side, as illustrated in FIG. 7, the pendulum pivots out of the locked position according to FIG. 8 and into the released position illustrated in FIG. 9, in which the pendulum no longer cooperates with the rib 20 and therefore the strut 12 can be folded again. However, as an alternative to a pendulum, some other locking element 17, such as a ball that cooperates with a skewed plane, may also be used.