pull-out guide device

Abstract

A pull-out guide for pulling out a pull-out furniture part (5) from a furniture body (4) has a first guide rail (1) and a second guide rail (2), a stop element (13) of the first guide rail (1) abutting against a pull-out stop (12) of the second guide rail (2) limits the first guide rail (1) from being pulled out. A locking element (14) is movably supported on the second guide rail (2) and is adjustable between a release position and a locking position, in the release position the first guide rail (1) is deflectable relative to the second guide rail (2) for complete removal of the first guide rail (1) in order to enable the stop element (13) to be disengaged from the pull-out stop (12). The locking element (14) is movably supported along a movement path extending from the locking position to the release position in the direction of movement (15) at an angle (16) of less than 20° to the opposite direction of the pull-out direction (6). The deflection of the first guide rail (1) continuously increases over the movement path of the locking element (14).

Description

Technical Field

[0001] This invention relates to a pull-out guide device for pulling out a retractable furniture component from a furniture body. The pull-out guide device has a first guide rail and a second guide rail. The first guide rail can be pulled out from the second guide rail in a pull-out direction from a push-in position to a pull-out position. In the pull-out position, a stop element of the first guide rail abuts against a pull-out stop portion of the second guide rail to limit further pulling of the first guide rail from the second guide rail. A locking fastener is movably supported on the second guide rail, adjustable between a release position and a locking position. In the release position, the first guide rail... The guide rail is completely removed from the second guide rail from the pull-out position of the first guide rail. The first guide rail is deflected relative to the second guide rail by lifting its front end until the stop element of the first guide rail can disengage from the pull-out stop of the second guide rail and can move past the pull-out stop of the second guide rail. In the locked position, the deflection of the first guide rail by lifting its front end is prevented, at least to the extent that the stop element of the first guide rail in the pull-out position remains engaged with the pull-out stop. Background Technology

[0002] Pull-out guides of the type described at the beginning are known from GB 1 335 776 B and GB 801 255 B. This pull-out guide has a first guide rail in the form of a pull-out rail or drawer rail, a second guide rail in the form of an intermediate guide rail, and a third guide rail in the form of a main body rail. It is constructed as a differential pull-out guide with a load-transmitting differential wheel rotatably supported in the central region of the intermediate guide rail. When the pull-out rail is pulled out from the intermediate guide rail, the pull-out is restricted by a stop element of the pull-out rail abutting the pull-out stop portion of the intermediate guide rail. To completely remove the pull-out rail from the intermediate guide rail, a locking fastener (Sicherungsteil, safety lock) rotatably supported on the intermediate guide rail is rotated from a locked position to a released position against the force of the spring element. In the locked position, the locking fastener prevents the front end of the pull-out rail from lifting. In the released position, the front end of the pull-out rail can be lifted, thereby guiding the stop element of the pull-out rail past the pull-out stop of the intermediate rail, and thus the pull-out rail can be removed from the intermediate rail. Conversely, the pull-out rail can also be inserted into the intermediate rail, for example, when assembling the pull-out guide device. The disadvantage of this is that in order to insert the drawer (on which the left and right pull-out rails are mounted), the locking fasteners of both intermediate rails must be simultaneously adjusted to the released position against the force of the spring elements, and the drawer must be inserted in this position of the locking elements, which is difficult for one person to do. The same applies to removing the drawer along with its pull-out guide device from the intermediate rails.

[0003] A similar pull-out guide device can also be found in GB 202,526B. However, here, the locking element is not loaded into the locked position by a spring element, but is held in its current rotational position around the rotation axis by friction locking. When the drawer is closed, the drawer front moves toward the locking element and adjusts the locking element into the locked position. However, for this to work, the drawer front and the center rail must be installed precisely with the correct relative relationship; otherwise, the locking element will not be properly adjusted into the locked position when the drawer is closed. However, in practice, this precise relationship cannot be easily maintained when the pull-out guide device is installed on the drawer. For example, for freezers with thick sealing lips, there is a problem in this regard: the pull-out guide device (with a self-pull-in mechanism) will compress the sealing lip to different degrees depending on the load and thus have different final positions.

[0004] The same applies to the pull-out guide device disclosed in EP 1 795 088 A1. Here, the locking fastener can rotate and move relative to a journal head. If the drawer stop touches the locking fastener when the drawer is closed, the stop causes the locking fastener to move relative to the journal head, thereby engaging the shoulder of the locking fastener with the retaining surface of the intermediate guide rail, thus preventing the locking fastener from rotating about the axis of rotation.

[0005] In pull-out guides known from GB 345,539B, the locking element can also pivot and move about a central axis. If the pull-out guide is closed in the released position of the locking element, the locking element collidees with a flange of the main guide rail and thereby pivots about the axis of rotation to the locked position and moves relative to the axis of rotation. This pushes a pin mounted on the intermediate guide rail into a recess in the locking element, thus preventing the locking element from rotating about the axis of rotation. If, because the pull-out guide is mounted on the drawer, the drawer front contacts the furniture body before the pull-out guide is fully pushed into the intermediate guide rail, then preventing the locking element from rotating about the axis of rotation will not be achieved.

[0006] CH 679735A5 and US 4,065,196 A disclose pull-out guide devices in which the pull-out stop of the intermediate guide rail is itself pivotable so as to guide the stop element of the pull-out guide rail past the pull-out stop of the intermediate guide rail. Summary of the Invention

[0007] The object of this invention is to provide a pull-out guide device of the type described at the beginning, which is more advantageous in that it is simple to operate and reliable in function. According to the invention, this object is achieved by a pull-out guide device having the features described in claim 1.

[0008] In the pull-out guide device according to the invention, the locking fastener is movably supported on the second guide rail along a moving direction extending from the locked position to the released position, the moving direction forming an angle of less than 20°, preferably less than 10°, opposite to the pull-out direction. Here, the deflectability of the first guide rail relative to the second guide rail by its front end increases continuously along the moving stroke of the locking fastener from the locked position to the released position, until, in the released position, the first guide rail, with its front end raised, can deflect relative to the second guide rail to such an extent that the stop element of the first guide rail can disengage from the pull-out stop portion of the second guide rail. Thus, the first guide rail can be completely removed from the second guide rail.

[0009] If the first guide rail is deflected (pivoted) in the pulled-out position by lifting the front end of the first guide rail, the deflection is about an axis formed by the support point of the first guide rail relative to the second guide rail, wherein the support point is formed in particular by a roller of the second guide rail.

[0010] In an advantageous embodiment of the invention, the direction of movement is parallel to the direction of pull-out over the entire travel.

[0011] In another advantageous embodiment of the invention, the direction of movement is oriented over the entire travel such that the locking fastener is lifted relative to an imaginary movement parallel to the pull-out direction over the entire travel from the locked position to the released position.

[0012] Preferably, the movement of the locking element is linear over its entire travel. Therefore, the movement of the locking element advantageously involves pure translation.

[0013] In another possible embodiment of the invention, the direction of movement may also be altered in the travel distance. For example, in the first segment of the travel distance from the locked position, it may be parallel to the pull-out direction, while in an adjacent segment, it may be oriented such that an imaginary movement relative to the pull-out direction is lifted. Here, the movement of the locking device from the locked position to the released position may include a certain degree of rotation in addition to translation, particularly rotation about a horizontal axis perpendicular to the pull-out direction. However, this rotation is preferably less than 5°.

[0014] If the vertical distance between the contact surface of the locking fastener and the horizontal flange of the first guide rail (which is in contact with the contact surface when the first guide rail is deflected by lifting the front end of the first guide rail) remains constant between the locked and released positions of the locking fastener, then the greater deflectability of the front end of the first guide rail relative to the second guide rail is achieved solely by the different distances between the locking fastener and the axis around which the deflection is enclosed.

[0015] It is also conceivable and possible that the section of the first guide rail that abuts against the contact surface when the first guide rail is deflected by lifting its front end in the pulled-out position and in the released position of the locking device is lower than the section of the first guide rail that abuts against the contact surface of the locking device when the first guide rail is deflected by lifting its front end in the pulled-out position and in the locked position of the locking device.

[0016] Preferably, the travel distance from the locking position to the releasing position of the locking fastener extends over at least one-fifth of the longitudinal extension range (i.e., its length) of the second guide rail. It can be configured such that the locking fastener is movable relative to the second guide rail between the locking and releasing positions over at least one-quarter or even at least one-third of the longitudinal extension range of the second guide rail.

[0017] One possible configuration of the invention specifies that the locking fastener is located in the first third of the longitudinal extension of the second guide rail in the locking position, and in the middle third of the longitudinal extension of the second guide rail in the releasing position. This configuration is particularly advantageous if the direction of movement extends parallel to the pull-out direction over the entire travel.

[0018] Advantageously, when the locking position is reached, the mobility of the locking member relative to the second guide rail is limited in the opposite direction of movement by a movement stop. In an advantageous embodiment of the invention, this movement stop is formed by a spring tongue of the locking member, which engages with a stop surface provided on the second guide rail. This allows for simple assembly of the locking member onto the second guide rail and, if necessary, simple disassembly from the second guide rail.

[0019] In an advantageous embodiment of the invention, in addition to the first and second guide rails, the pull-out guide device also has a third guide rail from which the second guide rail can be pulled out and into. Thus, the second guide rail is positioned between the first and third guide rails. The third guide rail can be attached to the furniture body, and the first guide rail can be attached to a pull-out furniture component. The third guide rail can also be referred to as the body guide rail, the second guide rail as the intermediate guide rail, and the first guide rail as the pull-out guide rail (or drawer guide rail). In particular, this design specifies that when the first guide rail moves relative to the second guide rail, the second guide rail moves synchronously relative to the third guide rail. This pull-out guide device is also called a synchronous pull-out mechanism or a differential pull-out mechanism. Advantageously, the second guide rail has a rotatably supported differential wheel in the central region of its longitudinal extension (i.e., its length), the differential wheel having a clearance relative to the second guide rail in the vertical direction and rolling between the raceways of the first and third guide rails. Such differential pull-out guide devices are known in principle. Advantageously, all rollers are positioned on the intermediate guide rail.

[0020] Advantageously, starting from the second guide rail in the pulled-out position and the locking fastener in the released position, when the second guide rail is pushed into the third guide rail, a section of the third guide rail, preferably located in the front end region of the third guide rail, can contact the locking fastener, and when the second guide rail is pushed into the pushed-in position, the locking fastener moves into the locked position. Thus, the locking fastener automatically enters the locked position when the pull-out guide device is operated.

[0021] When "before" and "after" are mentioned within the scope of this article, they are relative to the direction of pulling out. Attached Figure Description

[0022] Other advantages and details of the invention are now illustrated with reference to the accompanying drawings. The drawings show:

[0023] Figure 1 A perspective view of a first embodiment of the pull-out guide device according to the present invention is shown, in the closed position of the pull-out guide device and the locked position of the locking fastener;

[0024] Figure 2 The pull-out guide device in the open position is shown to be similar to Figure 1 A slanted view;

[0025] Figure 3 An end view of the pull-out guide device is shown, in which parts of the furniture body and the pull-out furniture components are shown in dashed lines;

[0026] Figure 4 and Figure 5 The oblique views of the third guide rail are shown from different viewing directions;

[0027] Figure 6 and Figure 7 The second guide rail is shown in a perspective view from different viewing directions, with the locking fastener in the locked position;

[0028] Figure 8 It shows something similar to Figure 6 An oblique view of the second guide rail, but the locking fastener is in the released position;

[0029] Figure 9 and Figure 10 The first guide rail is shown in oblique views from different viewing directions;

[0030] Figure 11 and Figure 12 A side view of the second guide rail is shown with the locking fastener in the locked and released positions;

[0031] Figure 13 and Figure 14 The fasteners are shown from different viewing angles at an angle;

[0032] Figure 15 A view of the locking mechanism is shown;

[0033] Figures 16 to 19 A side view of the first and second guide rails is shown to illustrate the process of the first guide rail detaching from the second guide rail.

[0034] Figure 20 A side view of the pull-out guide is shown when the pull-out guide is pushed together with the locking fastener initially in the released position.

[0035] Figure 21 and Figure 22 The first and second guide rails used in the second embodiment of the present invention are shown to be similar to those of the present invention. Figure 16 and Figure 17 The view;

[0036] Figure 23 A side view is shown in the first guide rail in the pulled-out position and in the locking fastener in the released position;

[0037] Figure 24 It shows the relationship with Figure 23 The corresponding view shows that the first guide rail is deflected relative to the second guide rail by lifting its front end. Detailed Implementation

[0038] The following uses Figures 1 to 20A first embodiment of the pull-out guide device according to the present invention is described. This pull-out guide device is constructed as a roller-type pull-out mechanism. In a roller-type pull-out mechanism, a number of rollers are rotatably supported on guide rails, which are used to achieve mutual movable guidance of the guide rails. The pull-out guide device has a first guide rail 1, a second guide rail 2, and a third guide rail 3. In this embodiment, all rollers are rotatably supported on the second guide rail. The third guide rail 3 is used for mounting on the furniture body 4, only... Figure 3 A section of the furniture body is shown in dashed lines. The first guide rail 1 is used for mounting on a pull-out furniture component 5, such as a drawer, where only one section of the component is located. Figure 3 The third guide rail 3 can also be called the main guide rail, the second guide rail 2 can be called the intermediate guide rail, and the first guide rail 1 can be called the pull-out guide rail.

[0039] In this embodiment, the pull-out furniture component is placed on a horizontal flange 1e, which is connected to the lower end of the vertical flange 1d of the first guide rail 1. Alternatively, the horizontal flange 1e can be omitted, and the pull-out furniture component 5 can be placed on the vertical flange 1d.

[0040] Guide rails 1-3 are guided synchronously, meaning that when the first guide rail 1 is pulled out from the second guide rail 2 along the pull-out direction 6, the second guide rail 2 moves synchronously with respect to the third guide rail 3 along the pull-out direction 6. Here, relative to the third guide rail 3, the second guide rail 2 always travels half the stroke of the first guide rail 1.

[0041] To synchronously guide guides 1 to 3, a rotatable differential wheel is provided on the second guide rail 2 in the middle region of its longitudinal extension. This differential wheel rolls between a downward-facing raceway 1a on the first guide rail 1, located below the horizontal flange 1c of the first guide rail 1, and an upward-facing raceway 3a on the third guide rail 3, located above the lower horizontal flange 3b of the third guide rail 3, thereby directly transferring a portion of the load of the first guide rail 1 to the third guide rail 3. Here, the differential wheel 7 has a clearance in the vertical direction. This pull-out mechanism is known as a "differential pull-out mechanism".

[0042] The horizontal flange 1c is connected to the upper end of the vertical flange 1d of the first guide rail 1.

[0043] In the middle region of the longitudinal extension range of the second guide rail 2, above the differential wheel 7, in this embodiment a support wheel 8 is provided slightly forward offset relative to the differential wheel 7. In the pulled-out position of the first guide rail 1, the support wheel 8 can support the rear end of the first guide rail 1 in the upward direction.

[0044] In this embodiment, as already mentioned, all rollers are mounted on the second guide rail 2, which is preferred in the differential pull-out guide device. Specifically, a roller 9 is located in the front region of the second guide rail 2, engaging with the downward-facing raceway 1a of the first guide rail 1 and, in the pushed-in position of the second guide rail 2, with the upward-facing raceway 3a of the third guide rail 3; and a roller 10 is located in the rear region of the second guide rail 2, engaging with the downward-facing raceway of the third guide rail 3, which is positioned below the upper horizontal flange 3c of the third guide rail 3. In the region between the differential wheel 7 and the rear end of the second guide rail 2, an auxiliary wheel 11 is preferably rotatably supported, which, in the pushed-in position of the first guide rail 1, supports the rear end of the first guide rail 1 downwards.

[0045] The pull-out stop 12 of the second guide rail 2 is used to restrict the pull-out of the first guide rail 1 relative to the second guide rail 2 in the pull-out position. The stop element 13 of the first guide rail contacts the pull-out stop in the pull-out position of the first guide rail 1. In addition, a locking fastener 14 is provided on the second guide rail 2, which will be described in more detail below. The locking fastener prevents the front end of the first guide rail 1 from being lifted to the extent that the stop element 13 may be guided past the pull-out stop 12 in the locked position.

[0046] The pulling out of the second guide rail 2 relative to the third guide rail 3, as well as the pushing of the first guide rail 1 into the second guide rail 2 and the pushing of the second guide rail 2 into the third guide rail 3, are all limited by stops. These stops can be designed according to existing technology and will not be explained in detail here.

[0047] In the closed position of the pull-out guide device, the first guide rail 1 has a pushed-in position, in which the first guide rail is fully pushed into the second guide rail 2; and the second guide rail 2 has a pushed-in position, in which the second guide rail is fully pushed into the third guide rail 3. In the open position of the pull-out guide device, the first guide rail 1 has a pulled-out position, in which the first guide rail is fully pulled out from the second guide rail 2; and the second guide rail 2 has a pulled-out position, in which the second guide rail is fully pulled out from the third guide rail 3.

[0048] In this embodiment, a locking fastener 14 is movably supported in an upper and front section of the second guide rail 2, parallel to its longitudinal extension, i.e., parallel to the pull-out direction 6. In this embodiment, in the locked position, the locking fastener 14 is located in the first third of the longitudinal extension of the second guide rail 2, preferably directly at the front end of the second guide rail 2. This locking position is determined by… Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 11 , Figure 16 and Figure 17 As can be seen, in this embodiment, the locking fastener 14 is located in the middle third of the longitudinal extension range of the second guide rail 2 in the released position. Here, the locking fastener 14 can rest against the front side of the support wheel 8 in the released position as shown. The release position is... Figure 8 , Figure 12 , Figure 18 and Figure 19 As can be seen in the text.

[0049] In this embodiment, the movement of the locking fastener 14 from the locked position to the released position is, for example, linearly along a movement direction 15 parallel to and opposite to the pull-out direction over a travel distance. If the lower edge of the second guide rail 2 is placed horizontally (this is the position where the pull-out guide device is used), the movement direction 15 is horizontal here.

[0050] In order to movably support the locking member 14, the locking member 14 has a channel 14a extending through the locking member 14 parallel to the direction of movement 15, the channel 14a accommodating an upper section of the second guide rail 2.

[0051] In this embodiment, the second guide rail 2 has a vertical flange 2a that rotatably supports the rollers 7-11, an upper horizontal flange 2b, and an inclined connecting flange 2c that connects the upper horizontal flange 2b to the vertical flange 2a. The channel 14a accommodates the upper horizontal flange 2b and the connecting flange 2c.

[0052] The locking fastener 14 has a spring tongue 14b located inside the channel 14a. In the locked position away from the locking fastener 14, the spring tongue 14b is located above the upper horizontal flange 2b of the second guide rail 2, and is spring-loaded against it. Therefore, the spring tongue 14b increases the frictional force that must be overcome to allow the locking fastener 14 to move relative to the second guide rail 2. This also achieves a certain holding effect on the locking fastener 14 in the released position. In the locked position of the locking fastener 14, the spring tongue 14b engages with an opening 2d in the horizontal flange 2b of the second guide rail 2 (in... Figure 8 (See inside). Here, in the locked position of the fastener 14, the spring tongue 14b, with its end pointing towards the front end of the second guide rail 2, abuts against the front end of the opening 2d in the upper horizontal flange 2b of the second guide rail 2. This front end forms a stop surface, which restricts the movement of the fastener 14 relative to the second guide rail 2 in the pull-out direction 6. Thus, a movement stop portion is formed for restricting the movement of the fastener 14 relative to the second guide rail 2 in the pull-out direction 6.

[0053] If it is desired to completely remove the locking fastener 14 from the second guide rail 2, the spring tongue 14b can be lifted (through the opening 2d in the vertical flange 2a) to disengage it from the stop surface. When the locking fastener 14 is installed on the second guide rail 2, the spring tongue 14b is automatically lifted as the locking fastener 14 is pushed onto the front end of the second guide rail 2.

[0054] Instead of an opening, a recess can be provided in the second guide rail 2, the front end of which forms the stop surface.

[0055] The spring tongue can also be positioned outside the channel 14a, and for example, it can press against the underside of the upper horizontal flange 2b or against the side of the vertical flange 2a when the locking fastener 14 is outside the locked position.

[0056] Channel 14a is located in the head section 14c of the fastener 14. An arm protrusion 14d of the fastener 14 extends downward from this head section. The lower end of the arm protrusion 14d forms a contact surface 14e. This contact surface engages with a support surface 1b of the first guide rail 1, which is formed by the upper side of the horizontal flange 1c of the first guide rail 1. Viewed in a horizontal side view perpendicular to the pull-out direction, when the front end of the first guide rail 1 is not lifted, the horizontal flange 1c of the first guide rail 1 extends parallel to the pull-out direction 6. (See [reference]) Figure 15 and Figure 16 .

[0057] If the first guide rail 1 is deflected relative to the second guide rail 2 in the pulled-out position, the front end of the first guide rail 1 is lifted, and the support surface 1b of the first guide rail 1 abuts against the contact surface 14e. The deflection of the first guide rail 1 is achieved by lifting the front end of the first guide rail 1 around the support point (as the axis) of the differential wheel 7 on the raceway 1a. In the locked position of the locking fastener 14, the deflection of the first guide rail 1 relative to the second guide rail 2 by lifting the front end of the first guide rail 1 can only be achieved to such an extent that the stop element 13 of the first guide rail 1 remains engaged with the pull-out stop portion 12 of the second guide rail 2.

[0058] If the locking fastener 14 moves from the locked position along the moving direction on the second guide rail 2, i.e., moves back in the opposite direction of pull-out 6, then when the front end of the first guide rail 1 is raised by the same distance (i.e., the deflection angle is the same), the vertical travel of the section of the support surface 1b of the first guide rail 1 that cooperates with the contact surface 14e of the locking fastener 14 is reduced. In other words, if the horizontal flange 1c has a constant vertical distance (vertical distance) from the lower end of the locking fastener 14 in its longitudinal extension range when the first guide rail 1 is not raised, then the further the locking fastener 14 moves backward relative to the second guide rail 2, the more the front end of the first guide rail 1 can be raised. At least in the released position of the locking fastener 14, the front end of the first guide rail 1 can be raised to the extent that the stop element 13 of the first guide rail 1 can move past the pull-out stop 12 of the second guide rail 2.

[0059] exist Figures 16 to 19 The image shows the first guide rail 1 being removed from the second guide rail 2. Figure 16 In the diagram, the first guide rail is in its pushed-in position. Starting from this position, the first guide rail 1 is pulled out to its pulled-out position. In the pulled-out position, the stop element 13 of the first guide rail 1 abuts against the pull-out stop part 12 of the second guide rail 2. (See figure) Figure 17 At this point, locking member 14 is in the locked position. Locking member 14 is then moved back to the released position, see [link to previous section]. Figure 18 Therefore, the front end of the first guide rail 1 is now lifted and the stop element 13 of the first guide rail 1 is guided past the pull-out stop 12 of the second guide rail 2, see [reference]. Figure 19 Therefore, the first guide rail 1 can be completely removed from the second guide rail 2 (i.e., removed from the second guide rail 2).

[0060] Conversely, when the locking fastener 14 is in the released position, the first guide rail 1 removed from the second guide rail 1 can be inserted into the second guide rail 2. As the front end of the first guide rail 1 is lifted, the rear end of the first guide rail 1 is introduced between the differential wheel 7 and the support wheel 8, at which time the stop element 13 of the first guide rail 1 moves past the pull-out stop part 12 of the second guide rail 2.

[0061] When the first guide rail 1 is inserted into the second guide rail 2, the second guide rail 2 is typically inserted into the third guide rail 3 and positioned in its pulled-out position. Therefore, when the second guide rail 2 is inserted into the third guide rail 3 and the pull-out guide is fully closed, the locking fastener 14 can be automatically adjusted from the released position to the locked position. Figure 20 As shown, the front end of the upper section of the third guide rail 3 contacts the head section 14c of the locking device 14, and when the second guide rail 2 is pushed into the third guide rail 3, the locking device 14 moves to the locked position.

[0062] The upper section of the third guide rail 3 has a cutout 3d at its front end, which accommodates the locking fastener 14 in the closed position of the pull-out guide device. The second guide rail 2 can thus be fully pushed into the third guide rail 3.

[0063] The arm protrusion 14a of the locking fastener 14 has a partially cylindrical recess 14f on its back side, and the front section of the support wheel 8 is accommodated in the recess in the released position of the locking fastener 14. Therefore, the abutment surface 14e can be positioned as close as possible to the support point of the upper horizontal flange 1c on the differential wheel 7. Thus, in the locked position of the locking fastener 14, the clearance at which the front end of the first guide rail 1 can be lifted can be kept very small.

[0064] If the first guide rail 1 is placed too high when it is inserted into the second guide rail 21, and (in the absence of a locking fastener) the first guide rail 1 may strike the support wheel 8 with its front edge, the locking fastener 14 in the released position can also protect the support wheel 8 from damage caused by the first guide rail 1. In conventional pull-out guide devices without the locking fastener according to the invention, a tab is usually stamped out from the profile of the second guide rail in the area in front of the support wheel and folded upwards, the tab being used to protect the support wheel. This measure is redundant here.

[0065] The following uses Figures 21 to 24 The second embodiment of the present invention will now be described. Except for the differences described below, the construction design of the second embodiment is substantially the same as that of the first embodiment; therefore, the description of the first embodiment and its possible variations and modifications may be referenced in a similar manner.

[0066] exist Figures 21 to 24 In, similar to Figures 16 to 19 Only the first guide rail 1 and the second guide rail 2 are shown. The construction design of the third guide rail 3 is the same as in the first embodiment.

[0067] The main difference between this embodiment and the first embodiment described above is that the locking element moves less backward in the released position, and the direction of movement 15 (along which the locking element 14 moves from the locked position to the released position) is angled relative to the pull-out direction 6. The direction of movement 15 is oriented such that, with the lower edge of the second guide rail 2 horizontal (i.e., with the pull-out direction 6 horizontal), the locking element 14 moves slightly upward as it moves from the locked position to the released position. The angle 16 between the opposite direction of the pull-out direction 6 and the direction of movement 15 is less than 20°, preferably less than 10°. This angle 16 can be 5° or less.

[0068] The tilt orientation of the movement direction 15 is achieved in this embodiment by the upper edge of the vertical flange 2a rising from front to back in the area traversed by the locking fastener 14 as it moves from the locked position to the released position. Therefore, the contact surface 14e is higher in the released position than in the locked position, and thus the vertical distance (vertical distance) between the contact surface 14e of the locking fastener 14 and the horizontal flange 1c of the first guide rail 1 continuously increases from the locked position to the released position. Therefore, during the movement of the locking fastener from the locked position to the released position (in the travel distance), the deflectability of the first guide rail 1 relative to the second guide rail 2 by the lifting of the front end of the first guide rail 1 continuously increases. In embodiments where the movement of the locking fastener from the locked position to the released position is linear, the deflectability of the first guide rail 1 relative to the second guide rail 2 by the lifting of the front end of the first guide rail 1 is proportional to the travel distance traversed from the locked position.

[0069] In this embodiment, in the locked position, the locking fastener 14 is also located in the area of ​​the front end of the second guide rail 2. However, in this embodiment, in the released position, the locking fastener is located in the middle area between the front end of the second guide rail 2 and the support wheel 8. Relatively speaking, in the released position, the locking fastener can be located further back, that is, it can be located further back so that the locking fastener is close to the support wheel 8.

[0070] Figure 21 The first guide rail 1 is shown in its pushed-in state. Figure 22 The diagram shows the first guide rail 1 in its extended state, with the locking mechanism in the locked position. Figure 23 In the middle, the locking device moves along the moving direction to the released position. Figure 24 In the middle, the first guide rail 1 is deflected by lifting the front end of the first guide rail 1 until the support surface 1b of the first guide rail 1 abuts against the abutment surface 14e of the locking fastener 14, thereby allowing the stop element 13 to move past the pull-out stop part.

[0071] In another modified embodiment of the invention, starting from the locking position of the locking fastener 14, a travel segment parallel to the pull-out direction, particularly extending horizontally, may be provided first. Following this segment, a gradually rising travel segment is connected, so that via this gradually rising segment, the travel direction forms an angle 16 not equal to 0° with the opposite direction of the pull-out direction 6.

[0072] It is also conceivable and feasible that the upward movement of the travel changes from front to back, that is: for example, immediately following the locking position there is a section of the travel parallel to the pull-out direction, which continuously transitions into an upward section of the travel.

[0073] Immediately following the locking position, a travel segment 15 parallel to the pull-out direction 6 is provided. This has the advantage of reducing the risk of accidental movement of the locking element 14 from the locking position towards the release position, for example, due to repeated lifting of the front end of the first guide rail 1. Accordingly, it can even be specified that the first segment of the travel segment 15 is constructed to first descend slightly from the locking position towards the release position, and then transitions to a horizontally extending travel segment. This horizontally extending travel segment may be followed by an upwardly extending travel segment, or similarly transition to an upwardly extending travel segment.

[0074] List of reference numerals

[0075] 1. First guide rail 6. Pull out direction

[0076] 1a raceway 7 differential wheel

[0077] 1b support surface 8 support wheels

[0078] 1c horizontal flange 9 rollers

[0079] 1d vertical flange with 10 rollers

[0080] 1e horizontal flange 11 auxiliary wheel

[0081] 2. Second guide rail 12 pull-out stop part

[0082] 2a Vertical flange 13 Stop element

[0083] 2b upper horizontal flange 14 locking fastener

[0084] 2c connects to the 14a channel of the flange.

[0085] 2d opening 14b spring tongue

[0086] 3 Third guide rail 14c head section

[0087] 3a raceway 14d arm protrusion

[0088] 3b lower horizontal flange 14e abutment surface

[0089] 3c upper horizontal flange piece 14f recess

[0090] 3D cutout 15 movement direction

[0091] 4 furniture bodies 16 angles

[0092] 5 pull-out furniture components

Claims

1. Pull-out guide for pulling out a pull-out furniture part (5) from a furniture body (4), having a first guide rail (1) and a second guide rail (2); the first guide rail (1) being pullable out of the second guide rail (2) in a pull-out direction (6) from a pushed-in position to a pulled-out position in which a stop element (13) of the first guide rail (1) abuts against a pull-out stop (12) of the second guide rail (2) to limit the first guide rail (1) from being pulled out further from the second guide rail (2); and a locking member (14) being movably supported on the second guide rail (2) and being adjustable between a release position in which the first guide rail (1) can be deflected with its front end raised relative to the second guide rail (2) to the extent that the stop element (13) of the first guide rail (1) can be disengaged from the pull-out stop (12) of the second guide rail (2) and can be moved over the pull-out stop (12) of the second guide rail (2) for completely removing the first guide rail (1) from the second guide rail (2) starting from the pulled-out position of the first guide rail (1), and a locking position in which the deflection of the first guide rail (1) with its front end raised is prevented at least to the extent that the stop element (13) of the first guide rail (1) in the pulled-out position remains engaged with the pull-out stop (12); characterized in that The locking element (14) is movably mounted on the second rail (2) in a movement direction (15) over a movement path extending from a locking position to a release position, the movement direction (15) being angled (16) at less than 20° to the opposite direction of the pull-out direction (6), wherein the first rail (1) is continuously increased in its degree of tilting with the front end of the first rail (1) raised relative to the second rail (2) over the movement path of the locking element (14) from the locking position to the release position, and wherein the locking element (14) is located in the locking position in the region of the front end of the second rail (2) and in the release position in the middle third of the longitudinal extent of the second rail (2).

2. The pull-out guide as claimed in claim 1, characterized in that The movement direction (15) is angled (16) at less than 10° to the opposite direction of the pull-out direction (6).

3. The pull-out guide according to claim 1, characterized in that The movability of the locking element (14) relative to the second rail (2) in the movement direction (15) is limited by a movement stop when the locking position is reached.

4. The pull-out guide according to claim 3, characterized in that The locking element (14) has a spring tongue (14b) which cooperates with a stop surface provided on the second rail (2) to form the movement stop.

5. The pull-out guide according to claim 4, characterized in that The spring tongue (14b) is spring-elastic pressed against a surface of the second rail (2) extending parallel to the movement direction (15) when leaving the locking position.

6. The pull-out guide according to claim 4, characterized in that The locking element (14) has a channel (14a) extending through the locking element (14) parallel to the movement direction (15), the channel accommodating an upper section of the second rail (2), wherein the spring tongue (14b) of the locking element (14) is provided inside the channel.

7. The pull-out guide according to claim 5, characterized in that The locking element (14) has a channel (14a) extending through the locking element (14) parallel to the movement direction (15), the channel accommodating an upper section of the second rail (2), wherein the spring tongue (14b) of the locking element (14) is provided inside the channel.

8. The pull-out guide according to any one of claims 1 to 7, characterized in that The pull-out guide has a third rail (3) from which the second rail (2) can be pulled out in the pull-out direction (6) from a pushed-in position to a pulled-out position, the pull-out guide being in a closed position in the pushed-in position of the first and second rails (1, 2) and being in an open position in the pulled-out position of the first and second rails (1, 2).

9. The pull-out guide according to claim 8, characterized in that The second rail (2) is moved synchronously relative to the third rail (3) when the first rail (1) is moved relative to the second rail (2).

10. The pull-out guide according to claim 8, characterized in that The second rail (2) has a load-transmitting differential wheel (7) which is rotatably mounted with a clearance in the vertical direction relative to the second rail (2) and rolls between a running surface (1a) of the first rail (1) and a running surface (3a) of the third rail (3).

11. The pull-out guide according to claim 8, characterized in that From the state in which the second rail (2) is in the pulled-out position and the locking element (14) is in the release position, when the second rail (2) is pushed into the third rail (3), a section of the third rail (3) hits against the locking element (14) and the locking element (14) moves into the locking position when the second rail (2) is pushed into the pushed-in position.

12. The pull-out guide according to claim 9, characterized in that From the state in which the second rail (2) is in the pulled-out position and the locking element (14) is in the release position, when the second rail (2) is pushed into the third rail (3), a section of the third rail (3) hits against the locking element (14) and the locking element (14) moves into the locking position when the second rail (2) is pushed into the pushed-in position.

13. The pull-out guide according to claim 10, characterized in that From the state in which the second rail (2) is in the pulled-out position and the locking element (14) is in the release position, when the second rail (2) is pushed into the third rail (3), a section of the third rail (3) hits against the locking element (14) and the locking element (14) moves into the locking position when the second rail (2) is pushed into the pushed-in position.

14. The pull-out guide according to claim 10, characterized in that The locking element (14) in the release position rests with a back side against a support wheel (8) arranged above the differential wheel (7).

15. The pull-out guide according to claim 14, characterized in that The back side of the locking element (14) has a recess (14f) which accommodates a front section of the support wheel (8) in the release position of the locking element (14).

16. The pull-out guide according to claim 13, characterized in that The locking element (14) in the release position rests with a back side against a support wheel (8) arranged above the differential wheel (7).

17. The pull-out guide according to claim 16, characterized in that The back side of the locking element (14) has a recess (14f) which accommodates a front section of the support wheel (8) in the release position of the locking element (14).

18. The pull-out guide according to any one of claims 1 to 7, characterized in that The locking element (14) has an abutment face (14e) which, when the first rail (1) is deflected with the front end of the first rail (1) raised relative to the second rail (2), abuts against a support face (1b) formed by the upper side of a horizontal flange piece (1c) of the first rail (1).

19. The pull-out guide according to claim 18, characterized in that The horizontal flange piece (1c) of the first rail (1) extends parallel to the pulling-out direction (6) in the case in which the first rail (1) is not deflected with the front end of the first rail (1) raised relative to the second rail (2).

20. The pull-out guide according to claim 8, characterized in that The locking element (14) has an abutment face (14e) which, when the first rail (1) is deflected with the front end of the first rail (1) raised relative to the second rail (2), abuts against a support face (1b) formed by the upper side of a horizontal flange piece (1c) of the first rail (1).

21. The pull-out guide according to claim 20, characterized in that The horizontal flange piece (1c) of the first rail (1) extends parallel to the pulling-out direction (6) in the case in which the first rail (1) is not deflected with the front end of the first rail (1) raised relative to the second rail (2).

22. The pull-out guide according to claim 9, characterized in that The lock member (14) has an abutting surface (14e) which abuts against a support surface (1b) formed by the upper side of the horizontal flange piece (1c) of the first rail (1) when the first rail (1) is deflected with the front end of the first rail (1) raised relative to the second rail (2).

23. The pull-out guide according to claim 22, characterized in that The horizontal flange piece (1c) of the first rail (1) extends parallel to the pull-out direction (6) in the case where the first rail (1) is not deflected with the front end of the first rail (1) raised relative to the second rail (2).

24. The pull-out guide according to claim 10, characterized in that The lock member (14) has an abutting surface (14e) which abuts against a support surface (1b) formed by the upper side of the horizontal flange piece (1c) of the first rail (1) when the first rail (1) is deflected with the front end of the first rail (1) raised relative to the second rail (2).

25. The pull-out guide according to claim 24, characterized in that The horizontal flange piece (1c) of the first rail (1) extends parallel to the pull-out direction (6) in the case where the first rail (1) is not deflected with the front end of the first rail (1) raised relative to the second rail (2).

26. The pull-out guide according to claim 11, characterized in that The lock member (14) has an abutting surface (14e) which abuts against a support surface (1b) formed by the upper side of the horizontal flange piece (1c) of the first rail (1) when the first rail (1) is deflected with the front end of the first rail (1) raised relative to the second rail (2).

27. The pull-out guide according to claim 26, characterized in that The horizontal flange piece (1c) of the first rail (1) extends parallel to the pull-out direction (6) in the case where the first rail (1) is not deflected with the front end of the first rail (1) raised relative to the second rail (2).

28. The pull-out guide according to any of claims 1 to 7, characterized in that The movement direction (15) is parallel to the pull-out direction (6).

29. The pull-out guide according to claim 8, characterized in that The movement direction (15) is parallel to the pull-out direction (6).

30. The pull-out guide according to claim 9, characterized in that The movement direction (15) is parallel to the pull-out direction (6).

31. The pull-out guide according to claim 10, characterized in that The movement direction (15) is parallel to the pull-out direction (6).

32. The pull-out guide according to claim 11, characterized in that The movement direction (15) is parallel to the pull-out direction (6).

33. The pull-out guide according to claim 18, characterized in that The movement direction (15) is parallel to the pull-out direction (6).

34. The pull-out guide according to claim 19, characterized in that The movement direction (15) is parallel to the pull-out direction (6).

35. The pull-out guide according to any one of claims 1 to 7, characterized in that The movement direction (15) is parallel to the pull-out direction (6).

36. The pull-out guide according to claim 8, characterized in that The degree of deflection of the first rail (1) relative to the second rail (2) with the front end of the first rail (1) raised increases proportionally to the movement path of the lock member (14) from the locking position to the release position.

37. The pull-out guide according to claim 9, characterized in that The degree of deflection of the first rail (1) relative to the second rail (2) with the front end of the first rail (1) raised increases proportionally to the movement path of the lock member (14) from the locking position to the release position. The degree of deflection of the first rail (1) relative to the second rail (2) with the front end of the first rail (1) raised increases proportionally to the movement path of the lock member (14) from the locking position to the release position.

38. The pull-out guide according to claim 10, characterized in that The first rail (1) is deflectable relative to the second rail (2) by a degree of deflection of the front end of the first rail (1) that increases proportionally to the movement path travelled from the locking position to the release position of the locking member (14) over the movement path of the locking member (14).

39. The pull-out guide according to claim 11, characterized in that The first rail (1) is deflectable relative to the second rail (2) by a degree of deflection of the front end of the first rail (1) that increases proportionally to the movement path travelled from the locking position to the release position of the locking member (14) over the movement path of the locking member (14).

40. The pull-out guide according to claim 18, characterized in that The first rail (1) is deflectable relative to the second rail (2) by a degree of deflection of the front end of the first rail (1) that increases proportionally to the movement path travelled from the locking position to the release position of the locking member (14) over the movement path of the locking member (14).

41. The pull-out guide according to claim 19, characterized in that The first rail (1) is deflectable relative to the second rail (2) by a degree of deflection of the front end of the first rail (1) that increases proportionally to the movement path travelled from the locking position to the release position of the locking member (14) over the movement path of the locking member (14).

42. The pull-out guide according to claim 28, characterized in that The first rail (1) is deflectable relative to the second rail (2) by a degree of deflection of the front end of the first rail (1) that increases proportionally to the movement path travelled from the locking position to the release position of the locking member (14) over the movement path of the locking member (14).

43. The pull-out guide according to any of claims 1 to 7, characterized in that The movement path from the locking position of the locking member (14) to the release position of the locking member (14) extends over at least one fifth of the longitudinal extent of the second rail.

44. The pull-out guide according to claim 8, characterized in that The movement path from the locking position of the locking member (14) to the release position of the locking member (14) extends over at least one fifth of the longitudinal extent of the second rail.

45. The pull-out guide according to claim 9, characterized in that The movement path from the locking position of the locking member (14) to the release position of the locking member (14) extends over at least one fifth of the longitudinal extent of the second rail.

46. The pull-out guide according to claim 10, characterized in that The movement path from the locking position of the locking member (14) to the release position of the locking member (14) extends over at least one fifth of the longitudinal extent of the second rail.

47. The pull-out guide according to claim 11, characterized in that The movement path from the locking position of the locking member (14) to the release position of the locking member (14) extends over at least one fifth of the longitudinal extent of the second rail.

48. The pull-out guide according to claim 18, characterized in that The movement path from the locking position of the locking member (14) to the release position of the locking member (14) extends over at least one fifth of the longitudinal extent of the second rail.

49. The pull-out guide according to claim 19, characterized in that The movement path from the locking position of the locking member (14) to the release position of the locking member (14) extends over at least one fifth of the longitudinal extent of the second rail.

50. The pull-out guide according to claim 28, characterized in that The movement path from the locking position of the locking member (14) to the release position of the locking member (14) extends over at least one fifth of the longitudinal extent of the second rail.

51. The pull-out guide according to claim 35, characterized in that The movement path from the locking position of the locking member (14) to the release position of the locking member (14) extends over at least one fifth of the longitudinal extent of the second rail. The movement path from the locking position of the locking member (14) to the release position of the locking member (14) extends over at least one fifth of the longitudinal extent of the second rail.

Images