CN103402398A

CN103402398A - Furniture levelling device

Info

Publication number: CN103402398A
Application number: CN2012800104688A
Authority: CN
Inventors: 凯斯·吉尔德
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-02-18
Filing date: 2012-02-16
Publication date: 2013-11-20
Anticipated expiration: 2032-02-16
Also published as: CA2827667A1; CA2827667C; WO2012112996A1; AU2012219281A1; BR112013021031A2; US20140001320A1; CN103402398B; EP2675322A1; CL2013002375A1; EP2675322A4

Abstract

The invention provides a device for adjusting the effective length of a table leg. The device includes an upper and a lower member (10, 12, 14) that is rotatably associated with one another and are biased apart by spring means (20), the upper member (14) including a first downwardly directed ramp (22) spaced apart from a second ratchet ramps (24) associated with the lower member (12) by a wall. The upper member (10) includes one or more pawls (25) adapted to run in the channel between the ramps (22, 24), and including a formation adapted to engage the ratchet when the desired effective length of the leg plus device has been adjusted.

Description

The furniture leveling apparatus

Technical field

The present invention relates to a kind of device of effective length of table leg of the table be used to regulating many legs table, especially four legs or more legs.But it also is applicable to other article of furniture such as bed, chair and analog.

Background technology

The one or more table legs that cause due to the out-of-flatness on floor lose and the contacting of floor, the tendency that this can cause desk, the desk in especially at the restaurant to rock or swing, and this is troublesome and poverty-stricken source.Any trial that overcomes this problem by mobile desk is all unsuccessful usually; spitball, wedge and the analog that a lot of diners usually will fold be placed on one of leg of not contacting floor below; this method is sometimes effective; but usually can cause over time; paper and wedge are lost on floor, and same trouble occurs once more.

Cam mechanism once was suggested and is used for addressing this problem, and it can activate along with pin, and therefore raise or reduce table leg, but because the slight movement of desk or similar means will make it lose perfect position.

The trial that much utilizes Retractive leg to overcome this problem is suggested, and for example Japan Patent 58206333, but they are very complicated, is difficult to successfully use, and is difficult to pleasant on aesthetic.

In US6920834, each leg is telescopic, and inner tube has keyway and latch lock unit in the bottom of each pipe.Setting can be by the double pointed nail of pressing to discharge, and when length was correct, the slip exterior tube also snapped in double pointed nail in hole.

In US6186453, the leveller of adjustable foot has the bolt of the end of upwards inserting leg.Be formed with pin in its bottom, on pin, with dish, dish can rotate to promote or reduce bolt by pin, thereupon the regulating effect of generation device.

Importantly, this governor motion is be locked on one's own initiative expectation locational.Also it is important, if when desk is moved, adjusting device can easy manipulation.Yet, known to the applicant, even the most complicated setting up to now is being also unsuccessful aspect the persistence of regulating.

A kind of device has been described in US729074, it has the upper and lower element that connects for relatively rotating, and each element has rightabout slope, thus, rotation can make slope move towards each other,, due to the corresponding expansion of upper and lower element and retraction, make table leg raise or reduce.Friction between slope is conducive to the durability that keeps certain, but it also could not provide durability provided by the present invention.Operation simplification and simple structure that it does not provide the present invention to have yet.

The improvement of invention afterwards has been to provide hydraulic pressure or the pneumatic means between the element of upper and lower to be installed.Thus, automatic adjusting to a certain extent is possible, but hydraulic pressure and pneumatic means are but easily deeply influenced because of the change that is applied to the pressure on desk.

Summary of the invention

Device according to the effective length of a kind of leg for regulating table leg or other article of furniture of the present invention, comprise the upper and lower element, and it can rotate relative to one another, and by the bias voltage of spring assembly, separates.Upper element matches with the first slope (or a plurality of slope), and this slope is pointed to down to form one or more walls, and this wall and the second ratchet slope (or a plurality of slope) of with lower element, matching are spaced apart.Upper element comprises one or more ratchets for advancing in the passage between described slope.Ratchet comprises adds when device is adjusted to the effective length of expectation the structure that is used for ratchet engagement when table leg.

Ratchet can comprise be used to provide and the first slope between have the first level and smooth or bending area of minimized friction, and be used for the zone with the band point of ratchet engagement.Ratchet can be positioned at the upper element inboard, and can be to form with the die casting of upper element one.

In an optimal way of the present invention, this device comprises intermediary element, and it comprises described the first slope or a plurality of slope, and this Slope Facies is non-rotatable to lower element.

Preferably, be provided with two or more corresponding slopes on each element.In a specific embodiment, as below being explained in more detail it, be provided with three continuous identical and connecting slopes on each element, if when tiling launched, it was zigzag structure.Being arranged so that in assembly process permission ratchet enters series of passages of gap or guide passage.

Description of drawings

To be elaborated by the following accompanying drawing of reference to embodiments of the invention, wherein:

Fig. 1 is the three-dimensional exploded view according to device of the present invention,

Fig. 2 is the angled top view of the device after the part assembling,

Fig. 3 is the angled side view of Fig. 2,

Fig. 4 is the side view cutaway drawing of device, and

Fig. 5 is the simulation tiled view of the series of passages between slope.

The specific embodiment

The device of the present embodiment comprises upper element 10, lower element 12 and intermediary element 14.

The internal diameter of upper element is greater than intermediary element and lower element, and can be rotated by embossing (knurl) 16.

Intermediary element has hollow endless belt 18, and it is used for admitting the bottom of the spring that is contained in upper element 20 as shown in Figure 4.A series of slopes 22 are from middle element to downward-extension, and this respect can be with reference to Fig. 5.

Lower element also has a series of slopes with ratchet 24, and it is with reference to also shown in Figure 5.

As seen ratchet 25(only has one in Fig. 3, have two as seen in Fig. 4) extend through the opening 26 of intermediary element, thereby in the slope 22 and the passage between lower element 24 that ratchet can be located in be limited to upper element.

The device that assembles is fixed on by bolt element 30 in the structure 28 that matches with table leg, and these elements are to link together by the mode (not shown) of screw and nut or other connected modes.The only leg that it should be noted that four leg tables or other furniture need to be conditioned.And should be noted, can mix similar analogue means to realize effect attractive in appearance for other three legs.

In the situation that the desk shakiness that causes due to the floor out-of-flatness is while operating, desk can make ratchet rise to deviate from outside ratchet by constructing 24 weight that apply, and along the slope 22 of upper element, advance, until during the bottom of bottom contact floor, ratchet will fall in corresponding ratchet this moment.If run into floor, the irregular situation of projection is arranged, ratchet will be deviate from from ratchet, and along slope 22 Support Positions that move to device.Substitute or in addition additionally, also the upper element rotation can be fixed on same position as a kind of.

, with reference to Fig. 5, wherein for the purpose of describing, the slope tiling is launched.If rotation upper element, the ratchet that illustrates will be at first from position, 30 are moved to 32, and fall into from here the extreme lower position of next passage 34.

Claims

1. be used for to regulate the device of effective length of the leg of table leg or other article of furniture, described device comprises upper element and lower element, its cooperation that can rotate relative to one another, and by the bias voltage of spring assembly, separate,

It is characterized in that, described lower element comprises the slope that at least one points to downwards, and it separates by wall and the second ratchet slope, thereby forms passage,

Described upper element comprises that at least one is used for the ratchet that the described passage between described slope is advanced, and described ratchet comprises adds when device is adjusted to the effective length of expectation the structure that is used for ratchet engagement when table leg.

2. device according to claim 1, is characterized in that, described ratchet comprise be used to provide and the first slope between have the first level and smooth or bending area of minimized friction, and be used for the zone with the band point of ratchet engagement.

3. device according to claim 1 and 2, is characterized in that, described ratchet is positioned at the inboard of described upper element.

4. device according to claim 3, is characterized in that, described ratchet and the die casting of described upper element one form.

5. the arbitrary described device according to claim 1 to 4, is characterized in that, described upper element comprises two ratchets.

6. the arbitrary described device according to claim 1 to 5, is characterized in that, described device comprises intermediary element, and it comprises the slope of described downward sensing, and its relatively described lower element is non-rotatable.

7. the arbitrary described device according to claim 1 to 6, is characterized in that, is provided with two or more corresponding slopes on each described element.

8. device according to claim 7, is characterized in that, is provided with three continuous identical and connecting slopes on each element, if when tiling launched, it was zigzag structure.