Rail mechanism with release assembly

Abstract

The invention relates to a rail mechanism comprising a release assembly for easily detaching a drawer from a furniture body in a tool free manner. The rail mechanism comprises a first rail for fixing to a furniture body, a second rail being movable telescopically relative to said first rail, and a third rail for fixing to a drawer. Said rails can move telescopically relative to each other. There is a first and a second carrying elements to provide the telescopic movement between the rails. Said rail mechanism comprises a release assembly. The release assembly is arranged such that it can be operated in a tool free manner and can release the third rail from the second rail. With the release assembly, the drawer is released from the furniture body in an easy and controlled manner.

Description

[0001] RAIL MECHANISM WITH RELEASE ASSEMBLY

[0002] TECHNICAL FIELD

[0003] The invention relates to a rail mechanism comprising a release assembly for easily detaching a drawer from a furniture body in a tool free manner. With said rail mechanism, it is ensured that the drawer can be attached and removed from the furniture body easily and without tools.

[0004] STATE OF THE ART

[0005] Telescopic rail mechanisms for opening and closing the drawer, which have some parts connected to the drawer and some parts connected to the furniture cabin, have been used in furniture for many years. These rail mechanisms are mechanical systems that facilitate user access to the contents inside the drawer. Said rail mechanisms consist of inner rail, preferably middle rail, and outer rail. The outer rail is fixed to the furniture cabin and the inner rail is fixed to the drawer. The middle rail is located between the inner rail and the outer rail. The movement of said rails relative to each other is provided by the ball carrying elements there between.

[0006] The outer rail is fixed to the furniture cabin, and the middle rail moves on the longitudinal axis relative to the outer rail. The inner rail is fixed to the drawer and moves on the longitudinal axis relative to the middle rail and the outer rail. The outer rail carries the middle rail and inner rail. In rail mechanisms where there is no middle rail present, the outer rail only carries the inner rail.

[0007] When the user pulls the drawer to open the drawer, the inner rail and the middle rail move in the pulling direction and the rail mechanism opens. When the user pushes the drawer to close the drawer, the inner rail and the middle rail move in the pushing direction and the rail mechanism closes. One of the common problems encountered in rail mechanisms is the inability to perform regular maintenance. Without adequate maintenance, the life of parts can be shortened, performance can decline, and failures can occur more frequently. Dust, dirt and other contaminants that accumulate between the rails over time can increase the friction between the rails. In this case, opening and closing the drawer requires more effort. Also, dirt accumulated on the rails causes the rails to wear out. In addition, dirty and worn rails may cause noises that negatively affect the user experience during the movement of the drawer. For this reason, regular maintenance and cleaning of the rails affects the life and performance of the rail mechanism.

[0008] Cleaning and maintenance of the rail mechanism is done by dismantling the rail mechanism. In the rail mechanisms currently used, the inner rail connected to the drawer is removed from the middle rail by means of a tool. It is known that the currently used mechanisms are difficult and complex to operate. For this reason, the maintenance and cleaning of the rail mechanism is overlooked by the user, as the rail mechanism cannot be easily dismantled. Since the rail mechanism cannot be dismantled and maintained, its service life and performance degrade.

[0009] Also, it is known that currently the user must use tools such as screwdrivers to dismantle the rail mechanism attached to the drawer. Since this process is found difficult and complex by the user, the maintenance and cleaning of the rail mechanism cannot be done. As a result, the service life and performance of the rail mechanism degrade.

[0010] The above-mentioned problems are solved by the rail mechanism of the invention.

[0011] OBJECT OF THE INVENTION

[0012] The object of the invention is to provide a rail mechanism that allows the drawer to be easily dismantled and attached to the furniture body in a tool manner.

[0013] SUMMARY OF THE INVENTION

[0014] The invention relates a rail mechanism of a telescopic structure that allows a drawer to be easily detached from the furniture body in a tool free manner. The rail mechanism comprises a first rail for fixing to a furniture body, a third rail for fixing to a drawer, and a second rail between the first rail and the third rail telescopically movable relative thereto. The third rail can move telescopically relative to the first rail and the second rail. The rail mechanism comprises carrying elements for the telescopic movement of the rails relative to each other. The rail mechanism comprises a first carrying element between the first rail and the second rail, and a second carrying element between the second rail and the third rail, respectively. The rail mechanism of the invention comprises a release assembly. The release assembly can be operated in a tool free manner and can release the drawer from the furniture body. The release assembly can release the third rail from the second rail. With the release assembly, the detachment of the third rail, which is connected to the drawer, from the first rail and / or the second rail, which are connected to the furniture body, is done in an easy and practical way without tools.

[0015] Preferably, the release assembly comprises a lock element configured to prevent detaching said third rail from the second rail in a first position and to release the third rail from the second rail in a second position. When said lock element is in the first position, it prevents detaching the third rail from the second rail and allows the third rail to be released from the second rail by moving it from the first position to the second position without the need for any tools. The operation of the lock element is the same in the rail mechanism located on both sides of the furniture body. With the lock element, the detachment of the third rail from the second rail is prevented.

[0016] Said release assembly preferably comprises a connection section. By means of the connection section, the lock element is configured to be held in the first position, and the lock element is configured to move to the second position with a force applied to the connection section in a longitudinal axis of the rail. Said connection section is preferably in the form of a flexible arc. When the lock element is in the first position, with a force applied to the connection section in a pulling direction in the longitudinal axis of the rail, the lock element moves to the second position. With the flexible arc form of the connection section, the connection section undergoes deformation and stretches, and with this stretching, said lock element moves to the second position and releases the third rail from the second rail. When the force applied in the longitudinal axis of the rail is removed, the connection section returns to its original shape. When said connection section returns to its original shape, the lock element returns to the first position.

[0017] Said release assembly preferably comprises an operating arm that is connected to the lock element via the connection section and configured to move the lock element from the first position to the second position with a force applied in a pulling direction in the longitudinal axis of the rail. The lock element cooperates with the operating arm to release the third rail from the second rail. Here, the operating arm moves the release assembly from the first position to the second position, while also ensuring the operation of the lock element. The operating arm ensures effective use of the lock element. Using the operating arm, which is easily accessible and operable, the user can move the lock element and release the third rail from the second rail.

[0018] Said operating arm is preferably on the third rail and pivotable relative thereto. When force is applied to the operating arm in the pulling direction, the operating arm pivots and allows the release assembly to move to the second position.

[0019] Said operating arm preferably comprises a first tab and a second tab, and the tabs are supported in bearings in a groove contained in said third rail. With the bearing of the tabs in the groove, the release assembly is sandwiched between the side walls and the base of the third rail, thus preventing the dislodging of the release assembly from the third rail. This ensures that the release assembly is placed safely. Here, the groove also helps the tabs to move in the correct position and ensures that they are properly aligned. Said groove ensures that the tabs are properly in contact with the third rail and helps to ensure that the release process is carried out properly.

[0020] Said operating arm preferably comprises a handle on its outer surface facing away from the base of said third rail. Said handle is arrange to support the position of the hand or finger when the user uses the operating arm. With the handle, the user is provided with a more solid hold (grip) on the operating arm. Thus, it is ensured that the release assembly is easily accessible and easily gripped by the user in order to the release of the third rail from the second rail. Furthermore, when using the operating arm, it is ensured that the user's hand or finger remains at a safe distance, creating a safe usage area for the user.

[0021] Preferably, the release assembly is pivotably connected to the third rail by means of a fixing element. The fixing element ensures that the release assembly is safely and securely connected to the third rail. Also, it controls the movement of the release assembly by compensating the force applied to the operating arm along the longitudinal axis of the rail. The fixing element compensates for the force on the release assembly by axially directing the force applied to the operating arm as the release assembly moves from the first position to the second position. The fixing element connects the release assembly to the third rail from the base of the third rail, preventing the release assembly from being dislodged when in use. Thus, the assembly works safely and is not damaged. The fixing element provides a secure connection for the release assembly.

[0022] Preferably, the second rail comprises an opposite lock element. The lock element is configured to hold the opposite lock element in the first position and to release the opposite lock element in the second position. Here, for the release process, the user applies force to the operating arm in the pulling direction in the longitudinal axis of the rail and moves the lock element to the second position. With this movement, the lock element is released from the opposite lock element on the second rail, and the third rail is detached from the second rail. The attachment process takes place when the user moves the third rail towards the second rail in the pushing direction (F2) along the longitudinal axis of the rail and the lock element engages with the opposite lock element on the second rail. When the lock element is correctly positioned towards the opposite lock element on the second rail and fixed, the third rail is securely attached and fixed to the second rail. In this way, the user can easily perform the release and attachment processes, and thus the release assembly can be used quickly and effectively.

[0023] Preferably, the lock element comprises a guide surface that is configured to guide the opposite lock element during the transition of said lock element (35.1 ) from the first position to the second position. When the lock element is moved in the pushing direction (F2) along the longitudinal axis of the rail while in the first position, the guide surface moves on the opposite lock element. The guide surface is arranged to regulate the movement of the release assembly and to enable it to perform the release and attachment of the third rail from the second rail without difficulty. The guide surface has a flat form. With this flat-formed guide surface, the release assembly moves smoothly on the opposite lock element. The guide surface determines the area in which the release assembly will move and prevents undesired deviations as the release assembly moves. The user is properly guided with the guide surface when attaching or detaching the third rail from the second rail, which makes the process easier and more safe. The guide surface ensures the correct use of the release assembly and improves the user experience.

[0024] Preferably, the lock element comprises a protrusion in flexible form configured to abut the opposite lock element in the first position. When the third rail is pulled in the pulling direction, the lock element abuts the opposite lock element. This abutment state can be hard due to the effect of the incoming force. If the abutment is hard, the lock element wears out and loses its form. If the lock element loses its form, it creates the risk of the third rail falling. The protrusion increases the strength of the lock element and prevents damaging of the lock element due to the effect of the abutment movement. Thus, the protrusion controls the undesirable continuous movement of the third rail in the pulling direction and reduces the risk of falling. The protrusion can be arranged in the form of a flexible thread section consisting of at least one thread. With this form, the risk of damage of the release assembly is reduced by ensuring soft contact of the protrusion with the second rail. With the flexible thread section form, the contact between the release assembly and the opposite lock element becomes more compatible and possible damage is prevented. This ensures a longer service life of the release assembly and increases safety during use.

[0025] The invention also relates to a method for releasing a drawer from a furniture body. The method comprises the steps of, providing the rail according to the invention; mounting the first rail on the furniture body, and the third rail on the drawer; pulling the drawer in a pulling direction (F1 ) in a longitudinal axis of the rail; moving an operating arm of the release assembly in the pulling direction (F1 ); pivoting of the operating arm relative to the third rail with the movement of the operating arm in the pulling direction (F1 ); moving a lock element of the release assembly from a first position to a second position by the pivoting of the operating arm relative to the third rail, and releasing the second rail and / or an opposite lock element arranged on the second rail, and detaching the third rail from the second rail in a tool free manner.

[0026] BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a perspective view of the rail mechanism of the invention connected to the furniture body and drawer,

[0028] Figure 2 is a frontal cross-sectional view of the rail mechanism of the invention connected to the furniture body and drawer,

[0029] Figure 3 is a perspective view of the rail mechanism of the invention, Figure 4 is an exploded view of the rail mechanism of the invention,

[0030] Figure 5 is a perspective view of the first rail and the second rail connected to the furniture body,

[0031] Figure 5a is a detailed perspective view of the second rail,

[0032] Figure 6 is a perspective view of the third rail connected to the drawer,

[0033] Figure 6a is a detailed perspective view of the release assembly,

[0034] Figure 7 is a side cross-sectional view of the first rail and the second rail connected to the furniture body,

[0035] Figure 8 is a side cross-sectional view of the third rail connected to the drawer,

[0036] Figure 9 is a cross-sectional view of the release assembly in the first position, connected to the second rail,

[0037] Figure 10 is a view of the release assembly in the second position.

[0038] REFERENCE NUMBERS

[0039] 10. Furniture body

[0040] 20. Drawer

[0041] 30. Rail mechanism

[0042] 31. First rail

[0043] 32. Second rail

[0044] 32.1 First side wall

[0045] 32.2 Second side wall

[0046] 32.3 Base

[0047] 32.4 Front end

[0048] 33. Third rail

[0049] 33.1 First side wall

[0050] 33.2 Second side wall 33.3 Base

[0051] 33.4 Back end

[0052] 33.5 Groove

[0053] 34.1 First carrying element

[0054] 34.2 Second carrying element

[0055] 35. Release assembly

[0056] 35.1 Lock element

[0057] 35.1 .1 Guide surface

[0058] 35.1 .2 Protrusion

[0059] 35.2 Operating arm

[0060] 35.2.1 First tab

[0061] 35.2.2 Second tab

[0062] 35.2.3 Handle

[0063] 35.2.4 Outer surface

[0064] 35.3 Opposite lock element

[0065] 35.4 First side wall

[0066] 35.5 Second side wall

[0067] 35.6 Connection section

[0068] 35.6.1 First connection element

[0069] 35.6.2 Second connection element

[0070] 35.7 Fixing element

[0071] 35.8 Fixing hole

[0072] 36. Mounting hole

[0073] F1 . Pulling direction

[0074] F2. Pushing direction

[0075] +F3, -F3. Vertical direction

[0076] +x, -x. Longitudinal axis of the rail

[0077] DETAILED DESCRIPTION OF THE INVENTION

[0078] Figure 1 shows a furniture body (10), a movable piece of furniture (20), and a rail mechanism (30). A movable piece of furniture is, for example, a drawer (20). With the rail mechanism (30), the drawer (20) can move relative to the furniture body (10) in the longitudinal axis of the rail (+x, -x), in the pulling direction (F1 ) and in the pushing direction (F2). The pulling direction (F1 ) is the direction in which the drawer (20) is pulled out of the furniture body (10), while the pushing direction (F2) is the direction in which the drawer is pushed into the furniture body (10). Figure 1 shows the perspective view of the drawer (20) being pulled out of the furniture body (10). Figure 2 shows a frontal cross-sectional view of the rail mechanism (30) connected to the furniture body (10).

[0079] Figure 3 shows a perspective view of the rail mechanism (30) telescopically extended. The rail mechanism (30) comprises a first rail (31 ) for fixing to a furniture body (10), a second rail (32) being movable telescopically relative to the first rail (31 ), and a third rail (33) for fixing to a drawer (20). The third rail (33) is movable telescopically relative to the first rail (31 ) and the second rail (32). The rail mechanism (30) comprises a first carrying element (34.1 ) between the first rail (31 ) and the second rail (32), and a second carrying element (34.2) between the second rail and the third rail, respectively, for the telescopic movement of the rails (31 , 32, 33) relative to each other. The rail mechanism (30) has a release assembly (35). The release assembly (35) can be operated in a tool free manner and releases the third rail (33) from the second rail (32). With the release assembly (35), the detachment of the third rail (33), which is connected to the drawer (20), from the first rail (31 ) and the second rail (32), which are connected to the furniture body (10), is achieved by the user in an easy and practical way without tools.

[0080] Figure 4 shows the exploded view of the rail mechanism (30). The rail mechanism (30) comprises mounting elements, carrying elements, restraint elements and release elements in addition to the first rail (outer rail) (31 ), second rail (middle rail) (32) and third rail (inner rail) (33) made of steel, aluminum or durable plastic. The mounting elements allow the rail mechanism (30) to be mounted on the furniture body (10) and on the drawer (20). The mounting elements allow the rail mechanism (30) to be mounted on the furniture body (10) and drawer (20) with elements such as screws, etc. For this reason, there are mounting holes (36) on the first (31 ) and third rail (33). The restraint elements determine the movement limits of the carrying elements (34.1 , 34.2) and rails (31 ,32,33). The restraint elements are not shown in the figures. The restraint elements are generally the structures that are mounted on the rails or integrated with the rail. The restraint elements ensure that the drawer remains in the desired position on the rails, preventing excessive movement and reducing wear. The release elements are used for the release of the third rail (33) from the rail mechanism (30). The release assembly (35) is described in detail below. The release assembly (35) preferably comprises a lock element (35.1 ) configured to prevent detaching the third rail (33) from the second rail (32) in a first position and to release the third rail (33) from the second rail (32) in a second position. The release assembly (35) comprises a first side wall (35.4) and a second side wall (35.5). The lock element (35.1 ) is arranged on the the first side wall (35.4).

[0081] When the third rail (33) is connected to the second rail (32), the release assembly (35) is in the first position, as shown in Figure 9. In this position, the third rail (33) is telescopically extended to the maximum level relative to the second rail (32), and the release assembly (35) prevents the third rail (33) from detaching from the second rail (32). When the release assembly (35) is moved to the second position, as shown in Figure 10, the third rail (33) is released (detached) from the second rail (32).

[0082] Figure 5 shows a perspective view of the furniture body (10) detached from the drawer (20), with the first rail (31 ) and the second rail (32) mounted thereto. Figure 6 shows a perspective view of the drawer (20) detached from the furniture body (10), with the third rail (33) mounted thereto. Figure 6a is a detailed view of the release assembly (35) on the drawer (20) presented in Figure 6. The detail view is a perspective view of a section of the third rail (33) that carries the release assembly (35) and where the release assembly (35) is in the first position.

[0083] Attaching the drawer (20) to the furniture body (10) means attaching the third rail (33) to the second rail (32). For the attachment process of the third rail (33) to the second rail

[0084] (32), the first rail (31 ) and the second rail (32) must be in the position telescopically pulled outwards, as shown in Figure 5. The release assembly (35) on the third rail (33) should be in the first position as shown in Figure 6a. When the drawer (20) is pushed in the pushing direction (F2) in the longitudinal axis of the rail such that the back end (33.4) of the third rail (33) coincides with the front end (32.4) of the second rail (32), the third rail

[0085] (33) is attached to the second rail (32) by means of the release assembly (35). With the lock element (35.1 ) of the release assembly (35), the detachment of the third rail (33) from the second rail (32) is prevented.

[0086] Figure 7 shows a side cross-sectional view of the furniture body (10), which is detached from the drawer (20). Figure 8 shows a side cross-sectional view of the drawer (20), which is detached from the furniture body (10). For the process of attaching the drawer (20) to the furniture body (10), the third rail (33) is pushed on the second rail (32) in the pushing direction (F2) along the longitudinal axis of the rail. At the end of the attachment process, the third rail (33) and the second rail (32) are as shown in Figure 9. This position corresponds to the first position. With the lock element (35.1 ), the detachment of the third rail (33) from the second rail is prevented. For the process of releasing the drawer (20) from the furniture body (10), the third rail (33) is pulled on the second rail (32) in the pulling direction (F1 ) in the longitudinal axis of the rail and the lock element (35.1 ) is moved from the first position to the second position. The second position is shown in Figure 10.

[0087] The release assembly (35) preferably comprises a connection section (35.6). The lock element (35.1 ) is configure to be held in the first position by means of the connection section (35.6). With a force applied to the connection section (35.6) along the longitudinal axis of the rail (+x, -x), the lock element (35.1 ) is moved to the second position. The connection section (35.6) is preferably in the form of a flexible arc. When the lock element

[0088] (35.1 ) is in the first position, with a force applied to the connection section (35.6) in the pulling direction (F1) in the longitudinal axis of the rail, the lock element (35.1 ) is moved to the second position. With the flexible arc form of the connection section (35.6), the connection section (35.6) stretches by deformation. With this stretch, the lock element

[0089] (35.1 ) moves to the second position as shown in Figure 10. With this movement, the lock element (35.1 ) releases the third rail (33) from the second rail (32). When the force in the pulling direction (F1 ) applied in the longitudinal axis of the rail is removed, the connection section (35.6) returns to its original position as shown in Figure 8. When the connection section (35.6) returns to its original position, the lock element (35.1 ) also returns to the first position.

[0090] The release assembly (35) preferably comprises an operating arm (35.2), which is connected to the lock element (35.1 ) via the connection section (35.6) and configured to move the lock element (35.1 ) from the first position to the second position with the force applied in the pulling direction (F1 ) in the longitudinal axis of the rail. The operating arm

[0091] (35.2) enables the release assembly (35) to be operated manually by the user without the need for any tools. When the user applies force to the operating arm (35.2) in the pulling direction (F1 ) in the longitudinal axis of the rail, the lock element is moved from the first position shown in Figure 9 to the second position shown in Figure 10. In the second position, the lock element (35.1 ) cooperates with the operating arm (35.2) to release the third rail (33) from the second rail (32). The operating arm (35.2) is preferably arranged on the third rail (33) and pivotable relative to the third rail (33). In this way, the operating arm (35.2) moves the release assembly (35) from the first position to the second position, while ensuring the operation of the lock element (35.1 ).

[0092] The operating arm (35.2) preferably comprises a first tab (35.2.1 ) and a second tab

[0093] (35.2.2), and the tabs (35.2.1 , 35.2.2) are supported in bearings in a groove (33.5) contained in the third rail (33). When force is applied to the operating arm (35.2) in the pulling direction (F1 ) in the longitudinal axis of the rail, the operating arm (35.2) pivots and the release assembly (35) is brought to the second position, as shown in Figure 9. The groove (33.5) is located between the base (33.3) and the vertical side walls

[0094] (33.1.33.2) of the third rail (33). By bearing these tabs (35.2.1 , 35.2.2) in the groove (33.5), the release assembly (35) is sandwiched between the side edges (33.1 , 33.2) and the base (33.3) of the third rail and is prevented from being dislodged from the third rail (33) in vertical direction (+F3, -F3) in the longitudinal axis of the rail (+x, -x).

[0095] The operating arm (35.2) preferably comprises a handle (35.2.3). The handle (35.2.3) can be provided on the outer surface (35.2.4) facing away from the base (33.3) of the third rail (33). With the handle (35.2.3), the user is provided with a more solid hold (grip) on the operating arm (35.2). Thus, it is ensured that the release assembly (35) is easily accessible and easily gripped by the user when the third rail (33) is released from the second rail (32).

[0096] The connection section (35.6) is arranged between the operating arm (35.2) and the lock element (35.1 ). The connection section (35.6) comprises a first connection element

[0097] (35.6.1 ) in a straight form and a second connection element (35.6.2) in a curved form. The second connection element (35.6.2) is in a curved form towards the first side wall

[0098] (33.1 ) of the third rail (33). The connection section (35.6) is manufactured from a flexible material.

[0099] With a force in the pulling direction (F1 ) applied to the connection section (35.6), the connection section (35.6) undergoes deformation and stretches, reaching the second position. Thus, the lock element (35.1) also moves to the second position and allows the third rail (33) to be detached from the second rail (32). When the force applied to the operating arm (35.2) by the user in the pulling direction (F1 ) is removed, the connection section (35.6) returns to its original position. When the connection section returns to its original position, the release assembly (35) also returns to the first position.

[0100] The release assembly (35) preferably comprises a fixing element (35.7). By means of the fixing element (35.7), the release assembly (35) is pivotably connected to the third rail (33). The fixing element (35.7) is attached to a fixing hole (35.8) contained in the release assembly. The fixing element (35.7) compensates for the applied force by directing the force applied to the operating arm (35.2) in the pulling direction (F1 ) to the pivot of the operating arm (35.2) as the release assembly (35) moves from the first position to the second position. Thus, the release assembly (35) moves from the first position to the second position and the third rail (33) is released from the second rail (32). The fixing hole (35.8) connects the release assembly (35) to the third rail (33) from the base (33) of the third rail (33). This prevents the release assembly (35) from being dislodged and damaged while in use.

[0101] Detaching the drawer (20) from the furniture body (10) means releasing the third rail (33) from the second rail (32). In order to release of the third rail (33) from the second rail (32), the furniture body must be in a pulled position, as shown in Figure 1. The release assembly (35) in the first position is brought to the second position by means of the operating arm (35.2). Figure 10 shows the second position. The lock element (35.1 ) is detached from the second rail (32) and thus the third rail (33) is released from the second rail. At the same time, the drawer (20) connected to the third rail (33) is pulled by the user in the pulling direction (F1 ), allowing the drawer to be easily detached from the furniture body.

[0102] The second rail (32) preferably comprises an opposite lock element (35.3), and the lock element (35.1 ) is configured to hold the opposite lock element (35.3) in the first position and releases the opposite lock element (35.3) in the second position. The opposite lock element (35.3) is arranged between a first side wall (32.1 ) and a second side wall (32.2) of the second rail (32) and on a base (32.3). In the first position, the third rail (33) is prevented from detaching from the second rail by the lock element (35.1 ) holding the opposite lock element (35.3). In the second position, the third rail (33) is released from the second rail (32) by the lock element (35.1 ) releasing the opposite lock element (35.3). The lock element (35.1 ) preferably comprises a guide surface (35.1.1 ). When the lock element (35.1 ) is moved in the pushing direction (F2) from the first position to the second position, the opposite lock element (35.3) is guided on the guide surface (35.1.1 ). The guide surface (35.1.1 ) is arranged in a flat form. With the guide surface (35.1 .1 ), the area in which the release assembly (35) will move on the second rail (32) is determined. In this way, it is ensured that the user can use the release assembly (35) without difficulty when the third rail (33) is detached from the second rail (32) or vice versa, when the third rail (33) is attached to the second rail (32).

[0103] Figure 9 shows the third rail (33) attached to the second rail (32). While the third rail (33) is attached to the second rail (32), the release assembly (35) is attached by moving on the opposite lock element (35.3) arranged on the second rail (32). After the third rail (33) is attached to the second rail (32), there is a risk that the third rail (33) will detach from the second rail (32) in the first position and fall, depending on the use. The lock element

[0104] (35.1 ) preferably comprises a protrusion (35.1 .2) of flexible form, abuts the opposite lock element (35.3) in the first position. After the third rail (33) is attached to the second rail (32), when the release assembly (35) is in the first position and the third rail (33) is moved in the pulling direction (F1 ), the flexibly formed protrusion (35.1.2) comes into contact with the opposite lock element (35.3). By the contact of the protrusion (35.1.2) with the opposite lock element (35.3), the continuous movement of the third rail (33) in the pulling direction (F1 ) is prevented. Thus, the risk of falling of the third rail (33) by detaching from the second rail (32) is prevented. The aforementioned protrusion (35.1.2) can be arranged in the form of a flexible thread section. With the flexible thread section form, the contact of the protrusion (35.1.2) with the second rail (32) is soft. Thus, the risk of contact damage to the release assembly (35) is reduced.

[0105] The invention also relates to the method of releasing a drawer (20) from a furniture body (10). The method comprises the steps of providing the rail according to the invention; mounting the first rail to the furniture body, and the third rail to the drawer; pulling the drawer (20) in a pulling direction (F1 ) in the longitudinal axis of the rail; moving an operating arm (35.2) of the release assembly (35) in the pulling direction (F1 ); pivoting of the operating arm (35.2) relative to the third rail with movement of the operating arm

[0106] (35.2) in the pulling direction (F1 ); moving a lock element (35.1) of the release assembly (35) from a first position to a second position by the pivoting of the operating arm (35.2) relative to the third rail and releasing the second rail (32) and / or an opposite lock element

[0107] (35.3) arranged on the second rail (32), and detaching the third rail (33) from the second rail (32) in a tool free manner.

Claims

CLAIMS1 . A rail mechanism (30), said rail mechanism (30) comprising, a first rail (31 ) for fixing to a furniture body (10), a second rail (32) being movable telescopically relative to the first rail (31 ), a third rail (33) for fixing to a drawer (20), and said third rail (33) being movable telescopically relative to the first rail (31 ) and the second rail (32), a first carrying element (34.1 ) between the first rail (31 ) and the second rail (32), and a second carrying element (34.2) between the second rail (32) and the third rail (33), respectively, for the telescopic movement of said rails (31 ,32,33) relative to each other, and a release assembly (35), characterized in that; said release assembly (35) configured to release the third rail (33) from the second rail (32) in a tool free manner.

2. A rail mechanism (30) according to claim 1 , characterized in that said release assembly (35) comprises a lock element (35.1 ) configured to prevent detaching said third rail (33) from the second rail (32) in a first position and to release the third rail (33) from the second rail (32) in a second position.

3. A rail mechanism (30) according to claim 2, characterized in that said release assembly (35) comprises a connection section (35.6) and said lock element (35.1 ) configured to be held in the first position by means of said connection section (35.6) and said lock element (35.1 ) configured to be moved to the second position with a force applied to the connection section (35.6) in a longitudinal axis of the rail.

4. A rail mechanism (30) according to claim 3, characterized in that said connection section (35.6) is in the form of a flexible arc.

5. A rail mechanism (30) according to claim 2 to 4, characterized in that said release assembly (35) comprises an operating arm (35.2), which is connected to said lock element (35.1 ) via said connection section (35.6) and configured to movesaid lock element (35.1 ) from the first position to the second position with a force applied in a pulling direction (F1 ) in the longitudinal axis of the rail.

6. A rail mechanism (30) according to claim 5, characterized in that said operating arm (35.2) being arranged on the third rail (33) and pivotable relative to the third rail (33).

7. A rail mechanism (30) according to claim 5 to 6, characterized in that said operating arm (35.2) comprises a first tab (35.2.1 ) and a second tab (35.2.2), and said tabs (35.2.1 , 35.2.2) are supported in bearings in a groove (33.5) in said third rail (33).

8. A rail mechanism (30) according to claim 5 to 6, characterized in that the operating arm (35.2) comprises a handle (35.2.3) on its outer surface (35.2.4) facing away from a base (33.3) of said third rail (33).

9. A rail mechanism (30) according to any one of the preceding claims, characterized in that said release assembly (35) is pivotably connected to said third rail (33) by means of a fixing element (35.7).

10. A rail mechanism (30) according to any one of the preceding claims, characterized in that said second rail (32) comprises an opposite lock element(35.3), and said lock element (35.1 ) configured to hold said opposite lock element(35.3) in the first position and to release said opposite lock element (35.3) in the second position.1 1. A rail mechanism according to claim 10, characterized in that said lock element (35.1 ) comprises a guide surface (35.1.1 ) configured to guide the opposite lock element (35.3) during the transition of said lock element (35.1 ) from the first position to the second position.

12. A rail mechanism according to claim 11 , characterized in that said lock element (35.1 ) comprises a protrusion (35.1.2) in flexible form configured to abut the opposite lock element (35.3) in the first position.

13. A method for releasing a drawer (20) from a furniture body (10), comprising the steps of;- providing a rail mechanism (30) according to claim 1 ,- mounting the first rail (31) to the furniture body (10) and the third rail (33) to the drawer (20),- pulling the drawer (20) in a pulling direction (F1) in a longitudinal axis of the rail,- moving an operating arm (35.2) of the release assembly (35) in the pulling direction (F1), - pivoting of the operating arm (35.2) relative to the third rail (33) with the movement of the operating arm (35.2) in the pulling direction (F1),- moving a lock element (35.1 ) of the release assembly (35) from a first position to a second position by the pivoting of the operating arm (35.2) relative to the third rail, and releasing the second rail (32) and / or an opposite lock element (35.3) arranged on the second rail (32), and- detaching the third rail (33) from the second rail (32) in a tool free manner.

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