CA1055557A - Withdrawal guide for drawers - Google Patents
Withdrawal guide for drawersInfo
- Publication number
- CA1055557A CA1055557A CA253,598A CA253598A CA1055557A CA 1055557 A CA1055557 A CA 1055557A CA 253598 A CA253598 A CA 253598A CA 1055557 A CA1055557 A CA 1055557A
- Authority
- CA
- Canada
- Prior art keywords
- rollers
- compensating
- roller
- guide
- drawer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Drawers Of Furniture (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The present invention provides a withdrawal guide for a drawer or the like with one support rail at each side on a fixed structure and one guide rail on the drawer or the like and first rollers which transmit vertical forces occurring between the guide rail and the support rail, the rollers being supported in a roller carrier constituted as a mobile unit, wherein at least one compensating roller is provided in the mobile unit, the axis of rotation of which is normal to the axis of rotation of the first rollers, and which when assembled runs on a vertical track of the support rail and a vertical track of the guide rail.
The present invention provides a withdrawal guide for a drawer or the like with one support rail at each side on a fixed structure and one guide rail on the drawer or the like and first rollers which transmit vertical forces occurring between the guide rail and the support rail, the rollers being supported in a roller carrier constituted as a mobile unit, wherein at least one compensating roller is provided in the mobile unit, the axis of rotation of which is normal to the axis of rotation of the first rollers, and which when assembled runs on a vertical track of the support rail and a vertical track of the guide rail.
Description
The invention relates to a withdrawal guide for drawers or the like with one support rail at each side on a fixed structure and one guide rail at each side on the drawer or the like and rollers which transmit vertical forces occuring between the guide rail and the support rail, the rollers being supported in a roller carrier constituted as a mobile unit.
Withdrawal guides of this kind find application not only ~for drawers but also for working surfaces and the like in modern furniture construction, in particular in many instances of kitchen and office furniture construction.
It is generally the task of such withdrawal guides to simplify the pulling out of the drawers or the like and to make the pulling out of the drawers or the like as free from sticking as possible, and also to enable the drawer or the like to be held in the piece of furniture itself even when almost completely pulled out.
Known drawer guides are in general equipped with rollers or slides, preferably of plastic, or with a combination of rollers and slides, or with freely mobile ball races.
It is an object of the present invention to produce a withdrawal guide of the kind described above which makes possible a particularly low friction sliding of the supporting rail of the fixed structure and the guide rail on the drawer or the like one upon the other and which ensures optimum lateral stability, lateral guidance and quiet movement.
According to the present invention there is provided a withdrawal guide for a drawer and the like comprising: fixed support base means; one support rail on said fixed base means for each side of the drawer, one guide rail on the drawer, rollers for transmitting vertical forces occurring between said guide rail and said support rail, a roller carrier for supporting said rollers and comprising a mobile unit, at least one compensating roller which is elastically ~, ~
~ - 1 -lOSSSS7 - deformable perpendicular to the running surface in the mobile unit, said compensating roller having an axis of rotation normal to the axis of rotation of said rollers, a vertical track on said support - rail said compensating roller running on said vertical track of the support rail and said guide rail respectively, said compensating roller being held only on its peripheral area without an axle being free tomove ina radialdirection toa predetermineddegree,spigotmeans to secure the compensating roller to the roller carrier when the drawer guide rail is pulled out of the support rail, said spigot means extending only in a lateral recess in said compensating roller.
Thus the invention provides a withdrawal guide for a drawer or the like with one support rail at each side on a fixed -- la -structure and one guide rail on the drawer or the like and first rollers which transmit vertical forces occurring between the guide rail and the support rail, the rollers being supported in a roller carrier consti~uted as a mobile unit, wherein at least one compensating roller is provided in the mobile unit, the axis of rotation of which is normal to the axis of rotation of the first rollers, and which when assembled runs on a vertical track of the support rail and a vertical track of the yuide rail.
The mobile unit of the withdrawal guide of the inven-tion differs substantially from the central rail of known differ-ential withdrawal assemblies in that it exerts no supporting function itself. Load transmission is effected purely through the rollers. Consequently it is generally advantageous that, even when the guide rail is pulled out, the mobile unit remains wholly or at least to a substantial extent within the support rail.
Advantageously two compensating rollers are present in the mobile unit.
The invention is further described below by way of exar;lple with reference to the accompanying drawings, wherein:
Figure 1 is a schematic illustration of a withdrawal guide in accordance with the invention;
Figure 2 shows a side view of a modified embodiment of the withdrawal guide;
Figure 3 shows a plastic stabilisation roller in the unloaded stage;
Figure 4 shows a stabilisation roller of metal wire in the unloaded state;
Figure 5 illustrates a stabilisation roller fashioned from a tube; and Figure 6 shows partly in section a schematic plan view of a drawer guide in accordance with the invention with elastic `` 1~55557 compensating rollers, during the exertion of lateral pressure upon the drawer.
The withdrawal guide in accordance with the invention comprises a support rail 1 on a fixed structure, which is for example produced with a U-section profile and can be inserted in a groove of the side wall of the structure and further comprises a guide rail 4 on the drawer. The guide rail 4 is provided with tabs 18 and 19 which are not essential to the operation of the present invention and they will not therefore be described fur-ther.
The drawer and the fixed structure are components of a piece of furniture.
In the embodiment shown, the guide rail 4 on the drawer is constituted with a Z-section profile, so that when fitted it extends under the side wall of the drawer.
Obviously it would alternatively be possible to form the guide rail with an L-section profile.
As can be seen in particular from Figure 1 of the drawings, a roller carrier or roller cage constituted as a mobile unit 6 is disposed in the U-section of the support rail 1. r~ he mobile unit 6 is desirably a plastics injection moulding. In the embodiment shown three rollers 7 with horizontal axes are carried in the~mobile unit 6 in such a way that two of the rollers 7 run on the supporting track 8 of the support rail 1, while the third roller 7 is located in the zone of the upper horizontal track 9 of the support rail 1 on the fixed structure.
When the withdrawal guide is fitted in the piece of furniture, the upper horizontal track 10 of the guide rail 4 engages between the rollers 7 in such a way that it runs on two rollers, while the uppermost roller 7 prevent the horizontal track 10 and thus the suide rail 4 from tilting or tipping upwards.
Thus the guide rail 4 is held in the support rail 1 secure against tipping and accordingly the drawer is also held secure against tipping.
If the drawer and thus the guide rail 4 are pulled out of the piece of furniture in the direction of the arrow A, the free mobile unit 6 is moved with it.
In Figure 1, in the forward zone, flaps 11, which are injection-moulded in one piece with the mobile unit 6, lie under an abutment 12 of the support rail 1. In Figure 2, an alterna-iive arrangement is shown where a single flap 11' extends in the opposite direction to the flaps 11 of figure 1.
This abutment 12 is formed on the free edge of the upper horizontal track 9 of the support rail 1 and constitutes a lateral guide for the mobile unit 6 when the drawer is pulled out.
The abutment 12 has two purposes.
The first purpose of the abutment 12 is to prevent the mobile unit 6 being pulled completely out of the support rail 1 and the second purpose of the abutment 12 is to prevent the-mobile unit 6 from tipping sideways when the drawer is pulled fully out.
If the drawer is wholly withdrawn, the flap 11 of the mobile unit 6 presses downwards and thus causes a peg 13 consti-tuting a stop to be engaged in a cut-out 14 of the track 8. In order to make engagement of the peg 13 in the cut-out 14 possible at least one roller 7, preferably that in the vicinity of the peg 13, is carried in the mobile unit 6 with vertical play.
This arrangement causes the mobile unit 6 to remain held in the support rail 1 and prevents the mobile unit from falling out when there is no lateral guidance from the drawer.
As can also be seen from the drawings, compensating rollers 15 are provided in the mobile unit 6, the axes of which are normal to the axes of rotation of the rollers 7.
When the drawer or the guiding rail 4 is pushed in, the compensating rollers 15 run first on the vertical track 1' of tl~e support rail 1 and then on the vertical track 4' of the guide rail 4.
The guide rail 4 is thus guided in the support rail 1 by means of rollers both with respect to the load acting verti-cally and also with respect to horizontal forces.
The compensating rollers 15 are made elastically deform-able, that is to say, their rolling surfaces adapt themselves to the vertical tracks 1' and 4' when the drawer is pushed in and they exhibit no fixed diameter.
When the withdrawal guide is installed in the piece of furniture, the elastic compensating rollers 15 are compressed by the two vertical tracks 1' of the support rail 1 and the verti-cal tracks 4' o~ the guide rails 4, so that, for example, they take on an oval form and in practice run in the form of running chains on the two rails.
Through this arrangement assured guidance of the drawer is attained despite lateral horizontal forces which occur.
Within the scope of the invention the expression "com-pensating roller" is to be understood in its widest sense, since the compensating rollers may be in the form of balls, running chains or the like.
The expression "axis" is to be taken in its widest sense, since the compensating rollers 15 are guided virtually free between the guiding rails, only spigots 17 preventing the compensating rollers 15 falling out when the drawer has been pulled out.
Withdrawal guides of this kind find application not only ~for drawers but also for working surfaces and the like in modern furniture construction, in particular in many instances of kitchen and office furniture construction.
It is generally the task of such withdrawal guides to simplify the pulling out of the drawers or the like and to make the pulling out of the drawers or the like as free from sticking as possible, and also to enable the drawer or the like to be held in the piece of furniture itself even when almost completely pulled out.
Known drawer guides are in general equipped with rollers or slides, preferably of plastic, or with a combination of rollers and slides, or with freely mobile ball races.
It is an object of the present invention to produce a withdrawal guide of the kind described above which makes possible a particularly low friction sliding of the supporting rail of the fixed structure and the guide rail on the drawer or the like one upon the other and which ensures optimum lateral stability, lateral guidance and quiet movement.
According to the present invention there is provided a withdrawal guide for a drawer and the like comprising: fixed support base means; one support rail on said fixed base means for each side of the drawer, one guide rail on the drawer, rollers for transmitting vertical forces occurring between said guide rail and said support rail, a roller carrier for supporting said rollers and comprising a mobile unit, at least one compensating roller which is elastically ~, ~
~ - 1 -lOSSSS7 - deformable perpendicular to the running surface in the mobile unit, said compensating roller having an axis of rotation normal to the axis of rotation of said rollers, a vertical track on said support - rail said compensating roller running on said vertical track of the support rail and said guide rail respectively, said compensating roller being held only on its peripheral area without an axle being free tomove ina radialdirection toa predetermineddegree,spigotmeans to secure the compensating roller to the roller carrier when the drawer guide rail is pulled out of the support rail, said spigot means extending only in a lateral recess in said compensating roller.
Thus the invention provides a withdrawal guide for a drawer or the like with one support rail at each side on a fixed -- la -structure and one guide rail on the drawer or the like and first rollers which transmit vertical forces occurring between the guide rail and the support rail, the rollers being supported in a roller carrier consti~uted as a mobile unit, wherein at least one compensating roller is provided in the mobile unit, the axis of rotation of which is normal to the axis of rotation of the first rollers, and which when assembled runs on a vertical track of the support rail and a vertical track of the yuide rail.
The mobile unit of the withdrawal guide of the inven-tion differs substantially from the central rail of known differ-ential withdrawal assemblies in that it exerts no supporting function itself. Load transmission is effected purely through the rollers. Consequently it is generally advantageous that, even when the guide rail is pulled out, the mobile unit remains wholly or at least to a substantial extent within the support rail.
Advantageously two compensating rollers are present in the mobile unit.
The invention is further described below by way of exar;lple with reference to the accompanying drawings, wherein:
Figure 1 is a schematic illustration of a withdrawal guide in accordance with the invention;
Figure 2 shows a side view of a modified embodiment of the withdrawal guide;
Figure 3 shows a plastic stabilisation roller in the unloaded stage;
Figure 4 shows a stabilisation roller of metal wire in the unloaded state;
Figure 5 illustrates a stabilisation roller fashioned from a tube; and Figure 6 shows partly in section a schematic plan view of a drawer guide in accordance with the invention with elastic `` 1~55557 compensating rollers, during the exertion of lateral pressure upon the drawer.
The withdrawal guide in accordance with the invention comprises a support rail 1 on a fixed structure, which is for example produced with a U-section profile and can be inserted in a groove of the side wall of the structure and further comprises a guide rail 4 on the drawer. The guide rail 4 is provided with tabs 18 and 19 which are not essential to the operation of the present invention and they will not therefore be described fur-ther.
The drawer and the fixed structure are components of a piece of furniture.
In the embodiment shown, the guide rail 4 on the drawer is constituted with a Z-section profile, so that when fitted it extends under the side wall of the drawer.
Obviously it would alternatively be possible to form the guide rail with an L-section profile.
As can be seen in particular from Figure 1 of the drawings, a roller carrier or roller cage constituted as a mobile unit 6 is disposed in the U-section of the support rail 1. r~ he mobile unit 6 is desirably a plastics injection moulding. In the embodiment shown three rollers 7 with horizontal axes are carried in the~mobile unit 6 in such a way that two of the rollers 7 run on the supporting track 8 of the support rail 1, while the third roller 7 is located in the zone of the upper horizontal track 9 of the support rail 1 on the fixed structure.
When the withdrawal guide is fitted in the piece of furniture, the upper horizontal track 10 of the guide rail 4 engages between the rollers 7 in such a way that it runs on two rollers, while the uppermost roller 7 prevent the horizontal track 10 and thus the suide rail 4 from tilting or tipping upwards.
Thus the guide rail 4 is held in the support rail 1 secure against tipping and accordingly the drawer is also held secure against tipping.
If the drawer and thus the guide rail 4 are pulled out of the piece of furniture in the direction of the arrow A, the free mobile unit 6 is moved with it.
In Figure 1, in the forward zone, flaps 11, which are injection-moulded in one piece with the mobile unit 6, lie under an abutment 12 of the support rail 1. In Figure 2, an alterna-iive arrangement is shown where a single flap 11' extends in the opposite direction to the flaps 11 of figure 1.
This abutment 12 is formed on the free edge of the upper horizontal track 9 of the support rail 1 and constitutes a lateral guide for the mobile unit 6 when the drawer is pulled out.
The abutment 12 has two purposes.
The first purpose of the abutment 12 is to prevent the mobile unit 6 being pulled completely out of the support rail 1 and the second purpose of the abutment 12 is to prevent the-mobile unit 6 from tipping sideways when the drawer is pulled fully out.
If the drawer is wholly withdrawn, the flap 11 of the mobile unit 6 presses downwards and thus causes a peg 13 consti-tuting a stop to be engaged in a cut-out 14 of the track 8. In order to make engagement of the peg 13 in the cut-out 14 possible at least one roller 7, preferably that in the vicinity of the peg 13, is carried in the mobile unit 6 with vertical play.
This arrangement causes the mobile unit 6 to remain held in the support rail 1 and prevents the mobile unit from falling out when there is no lateral guidance from the drawer.
As can also be seen from the drawings, compensating rollers 15 are provided in the mobile unit 6, the axes of which are normal to the axes of rotation of the rollers 7.
When the drawer or the guiding rail 4 is pushed in, the compensating rollers 15 run first on the vertical track 1' of tl~e support rail 1 and then on the vertical track 4' of the guide rail 4.
The guide rail 4 is thus guided in the support rail 1 by means of rollers both with respect to the load acting verti-cally and also with respect to horizontal forces.
The compensating rollers 15 are made elastically deform-able, that is to say, their rolling surfaces adapt themselves to the vertical tracks 1' and 4' when the drawer is pushed in and they exhibit no fixed diameter.
When the withdrawal guide is installed in the piece of furniture, the elastic compensating rollers 15 are compressed by the two vertical tracks 1' of the support rail 1 and the verti-cal tracks 4' o~ the guide rails 4, so that, for example, they take on an oval form and in practice run in the form of running chains on the two rails.
Through this arrangement assured guidance of the drawer is attained despite lateral horizontal forces which occur.
Within the scope of the invention the expression "com-pensating roller" is to be understood in its widest sense, since the compensating rollers may be in the form of balls, running chains or the like.
The expression "axis" is to be taken in its widest sense, since the compensating rollers 15 are guided virtually free between the guiding rails, only spigots 17 preventing the compensating rollers 15 falling out when the drawer has been pulled out.
Claims (9)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A withdrawal guide for a drawer and the like compri-sing: fixed support base means; one support rail on said fixed base means for each side of the drawer, one guide rail on the drawer, rollers for transmitting vertical forces occurring between said guide rail and said support rail, a roller carrier for supporting said rollers and comprising a mobile unit, at least one compensating roller which is elastically deformable perpendicular to the running surface in the mobile unit, said compensating roller having an axis of rotation normal to the axis of rotation of said rollers, a vertical track on said support rail said compensating roller running on said vertical track of the support rail and said guide rail respectively, said compensating roller being held only on its peripheral area without an axle and being free to move in a radial direction to a predetermined degree, spigot means to secure the compensating roller to the roller carrier when the drawer guide rail is pulled out of the support rail, said spigot means extending only in a lateral recess in said compensating roller.
2. A withdrawal guide as defined in claim 1 including an auxiliary compensating roller in said mobile unit.
3. A withdrawal guide as defined in claim 1, wherein said compensating rollers are comprised of an elastic plastic.
4. A withdrawal guide as defined in claim 1, wherein said compensating rollers are comprised of roller metal.
5. A withdrawal guide as defined in claim 1 wherein said compensating rollers comprise freely deformable rings.
6. A withdrawal guide as defined in claim 1 wherein said compensating rollers comprise a section of a tube.
7. A withdrawal guide as defined in claim 4 wherein said compensating rollers are comprised of spring wire.
8. A withdrawal guide as defined in claim 4 wherein said compensating rollers are rolled from metal bond.
9. A withdrawal guide as defined in claim 6 wherein said section tube has a slit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT410575A AT346527B (en) | 1975-05-30 | 1975-05-30 | EXTENDING GUIDE FOR DRAWERS OD. DGL. |
| AT575075 | 1975-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1055557A true CA1055557A (en) | 1979-05-29 |
Family
ID=25600817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA253,598A Expired CA1055557A (en) | 1975-05-30 | 1976-05-28 | Withdrawal guide for drawers |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1055557A (en) |
-
1976
- 1976-05-28 CA CA253,598A patent/CA1055557A/en not_active Expired
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