Storage unit for tools

Abstract

The invention relates to a storage unit, in particular a mechanic's vehicle (1), for storing tools. The storage unit comprises at least one main body (2), which has a plurality of drawers (4) that can be pulled out. The drawers can be locked via at least one locking unit (40) in such a way that when any one drawer (4) is pulled out, the remaining drawers (4) are locked. In order to be able to pull out a plurality of drawers and to arrange the drawers as individually as possible, the locking unit is provided with an adjusting element, which in a first position ensures the locking function and in a second position releases at least one or more drawers.

Description

Technical Field

[0001] The invention relates to a storage unit, in particular a mechanic's vehicle for storing tools, comprising at least one main body having a plurality of drawers that can be pulled out. The drawers can be locked via at least one locking unit so that when any one drawer is pulled out, the remaining drawers are blocked. Background Art

[0002] Tool storage units can consist of, for example, a mechanic's cart, but they can also be constructed from fixed tool cabinets. These are typically used in professional settings, such as in automotive factories or production lines, for example, during final assembly or repair of cars or trucks. However, their use in the private sector is not excluded. This is particularly true in mechanic's carts, which are frequently used due to their flexibility and are used to accommodate a variety of hand tools or specialized tools. These tools must always be readily accessible, visually visible, and organized, minimizing the time required to find a specific tool. The mechanic's cart is therefore equipped with multiple drawers that can be pulled out from the main body. The drawers are held in place by guide rails or movable tracks, allowing them to be fully extended. This ensures that the entire tool set required in the factory or production line is always readily available. However, in factories, fixed tool cabinets can also be used instead of mechanic's carts. These cabinets not only divide workstations but also organize tools closely together.

[0003] However, in many cases, tool drawers are insufficient and during installation one must more frequently switch back and forth between different tools, which are located in different drawers, thereby requiring the use of two or more drawers in alternation.

[0004] Storage units known from the prior art, particularly mechanic carts, have locking units that, in addition to closing the tool cabinet or mechanic cart, also maintain a closed position, allowing only a single drawer to be pulled out. Once a drawer is at least partially pulled out, all other drawers are locked. This makes it very likely that a drawer must always be pushed back in until it stops before another drawer can be pulled out. Such locking units are required because tool sets can weigh several kilograms, which can alter the tilting moment when multiple drawers are pulled out, potentially causing the mechanic cart to tip over.

[0005] German Utility Model DE 20 2005 018 504 U1, for example, discloses a mechanic's cart equipped with such a locking unit. German Utility Model DE 20 2018 100 948 U1 also discloses another embodiment of a mechanic's cart, which also has a locking unit. The locking units are individually configured, but are designed to allow only a single drawer to be extended while simultaneously locking the others. Even when cleaning the mechanic's cart, for example, all or most of the drawers cannot be extended. Summary of the Invention

[0006] In order to eliminate the above-mentioned problems in tool cabinets or mechanic carts, the object of the present invention is to provide a storage unit with a novel locking unit which provides greater flexibility when pulling out the drawers.

[0007] According to the invention, to achieve this object, it is provided that the locking unit has a locking element which ensures the locking function in a first position and releases at least one drawer in a second position. Further advantageous embodiments of the invention are disclosed in the dependent claims.

[0008] In this case, the locking unit is combined with an adjustment element that ensures a locked function in a first position and releases at least one or more drawers in a second position. This allows the installer to decide which function of the tool cabinet or mechanic cart is most beneficial to them. For example, this could involve drawers in the lower or upper area, but the drawers offer the option of using multiple tools simultaneously, as the other tools are also available in the lower drawer. This eliminates the need for cumbersome insertion of individual drawers and ensures that the existing lock can be released again by moving the drawer in before pulling out another one. Furthermore, the pulled-out drawers and the tools stored therein can generate higher tilting moments in the mechanic cart. This tilting moment can be counteracted, for example, by providing counterweights on the bottom elements of the mechanic cart. These counterweights ensure high stability even when multiple drawers are pulled out. In extreme cases, all drawers, including the tool set, can be pulled out without the mechanic cart tipping over. In this regard, in the case of a tool cabinet, the cabinet can be secured to the wall to prevent tipping.

[0009] The main advantage of the storage unit according to the invention is therefore that the locking unit can be locked in two positions, optionally in multiple positions, via the adjusting element, and thus such a storage unit can be used in a conventional manner with locked drawers, but the locking unit can be deactivated if necessary and more than one drawer can thus be pulled out simultaneously.

[0010] To enable locking, the movable rail is provided with a locking element in the rear region, which corresponds to the locking unit. The locking element is used to allow the locking unit to move vertically and is supported in a respective recess, which serves as a guide, in the movable rail. A spring presses the locking element toward the locking element, i.e., in the extension direction, and the inserted drawer is pressed against the spring force into the rear region of the recess as viewed from the front. When the drawer is extended, the spring presses the locking element in the extension direction and, in turn, between the locking elements, thereby locking the remaining drawers. The mobility of the locking element is determined by the length of the recess, allowing it to be easily pressed back into the end position without reaching the end of the recess. When the drawer is extended, the locking element is movable enough to allow the spring force to reach between the locking elements. Furthermore, the release of the locking element allows the drawer to slide into the corresponding end position, essentially without being subject to spring force.

[0011] The locking element of each drawer, which is supported in a recess of the movable rail, is also coupled to a locking element supported within the movable rail, which is activated simultaneously when the locking element protruding to the outside is locked, thereby preventing the other drawers from being pulled out. The movable rails used here are used in many ways in industry and are therefore considered prior art.

[0012] In a first embodiment, the locking unit is configured as a U-shaped plate with vertically movable locking elements arranged on the plate in a manner corresponding to the number of drawers. The U-shaped plate serves only to secure the locking elements, which are secured to the plate, for example, by two screws or, if necessary, rivets, in such a manner that the locking elements can still move vertically. This mobility is ensured, for example, by slots in the locking elements. The movement of the locking elements is triggered by a stop element, which operates against the locking element or against a stop surface, so that, for example, if a drawer has already been pulled out, the drawer cannot be pulled out any further. Alternatively, when no drawers have been pulled out, the stop element slides between the locking elements, causing the locking element above the stop element to move upward vertically, while the locking element below the stop element is locked. Locking the locking elements prevents the other stop elements assigned to the lower drawers from reaching between the locking elements, thereby locking these drawers as well. When, for example, the middle drawer is pulled out, the vertically higher locking element moves vertically upward, thereby facilitating the locking action of the stop. A special feature of this arrangement is that the locking element can vertically move one or more locking elements and thereby trigger the locking action. To this end, the locking elements are fastened in a planar, movably fixed to the base of the U-shaped plate, specifically by screws or, if necessary, rivets. The vertical movement of the locking elements is enabled by the presence of elongated holes.

[0013] In another design, the locking element has two rounded corners on its longitudinal edge, wherein the rounded corners are provided with stop surfaces and, after installation, face the rear wall of the main body. The rounded corners serve to abut against a stop element, which, due to its shape, moves the locking element from its rigid position by sliding over the rounded corners. The stop element itself can only perform horizontal movements. Here, the rounded corners are provided with stop surfaces, so that when the locking element reaches its end position, the stop elements of the remaining drawers move at least partially directly against the stop surfaces. Alternatively, a locking element that moves vertically downward prevents horizontal movement of the stop element.

[0014] Alternatively, the locking element can cause a rotation of the locking element via the locking element, so that the remaining locking element moves against the stop surface.

[0015] After one drawer has been pulled out, a locking unit consisting of a U-shaped plate and a corresponding number of locking elements is used to lock the remaining drawers, depending on how many drawers the tool cabinet or mechanic's car has. It is necessary to secure the U-shaped plate in a specific position. In order to cancel the locking of the other drawers, in a first embodiment, the U-shaped plate is connected to the main body in a swingable manner via at least two hinges, wherein the hinges have a vertical axis of rotation. Therefore, based on the selected structure, the U-shaped plate can be swung around the vertical axis of rotation in its vertical arrangement. This is achieved only by swinging, and the locking element no longer engages with the locking element, and thus all drawers can be pulled out in sequence. In this embodiment, unlocking is achieved solely and only by the swinging of the U-shaped plate, because the locking element is now freely movable.

[0016] To securely hold the U-shaped plate in one position or another, another embodiment of the present invention provides that the U-shaped plate has a retaining bracket for a spring-preloaded locking pin, the free end of which engages in a hole in the base element of the main body. This locking pin, which engages in the hole in the base element, can secure at least two positions, and optionally multiple positions. In the simplest case, the first position of the U-shaped plate is secured via the first hole, and the second position via the second hole, wherein the locking pin is pressed into the existing hole due to the spring preload. Lifting the locking pin releases the lock, thereby allowing the U-shaped plate to pivot.

[0017] In another embodiment, the tool cabinet or mechanic cart has an upper storage surface on which tools can be temporarily placed, for example when they are needed several times in succession but other hand tools must be used in the meantime. There are also embodiments in which the mechanic cart has a handle integrally formed on at least the narrow side of the storage surface, which allows the mechanic cart to be pulled from the rear, or in which the desired position of the mechanic cart is provided for the personnel concerned, and the mechanic cart can be pulled into the desired position using the handle of the mechanic cart.

[0018] In another design of a mechanic vehicle, the narrow side has a perforated plate or hole for a tool hook. This narrow side can be, for example, a panel wall that is arranged at a right angle to the drawer and is part of the main body. However, it can also be, for example, the rear wall of the mechanic vehicle. The perforated plate or hole for the tool hook is used to accommodate particularly large and heavy tool parts, especially specialized tools, so that they can be readily accessible at any time.

[0019] To ensure the mobility of the mechanic cart, it is equipped with two fixed rollers and at least one movable roller, preferably two movable rollers, which are also provided with fixings. Usually, the mechanic cart always needs to be moved to the correct position, and the two fixed rollers and one or two movable rollers are used to move the mechanic cart to the correct position so that the person who needs the tool can easily operate it.

[0020] In another embodiment of a storage unit, particularly in the form of a tool cabinet or mechanic's cart, the adjustment element is formed by a spring-loaded locking pin that can be locked in a plurality of holes, or by an internal mechanism that allows the locking unit to be adjusted and locked from the outside using a rotary switch. The rotary switch significantly simplifies the operation of the locking unit for changing its position and allows the setting to be changed at any time. Furthermore, there is a possibility that such a rotary switch is additionally equipped with a lock and a key, so that the locking can be changed only using the key.

[0021] The present invention is characterized in that, in addition to locking other drawers when one drawer is pulled out, conventional tool cabinets or mechanic carts also provide a means of locking other drawers, wherein it is not important which drawer is pulled out first. The tool cabinet or mechanic cart according to the present invention also provides the means of pulling out not only one but also multiple, if necessary all, drawers, so that the required tools are always readily available. For this purpose, there is a possibility that the locking unit can be pivoted by an adjusting element into a position in which the existing locking element disengages from the locking element. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The invention is described in detail in the form of an example mechanic vehicle with reference to the accompanying drawings.

[0023] Shows:

[0024] Figure 1 A mechanic's vehicle is shown in perspective;

[0025] Figure 2 The perspective diagram shows the Figure 1 A mechanic's cart with a pull-out drawer;

[0026] Figure 3 Shown according to Figure 1 a mechanic's cart with three pull-out drawers;

[0027] Figure 4 A perspective partial view shows a locking unit for a corresponding drawer in an activated position;

[0028] Figure 5 The locking unit is shown in a perspective partial view in an inactive position;

[0029] Figure 6 A locking unit for an existing drawer is shown in a perspective partial view, with the locking element in an activated basic position;

[0030] Figure 7 A perspective partial view shows a locking unit for an existing drawer after the middle drawer has been pulled out, with activated locking elements;

[0031] Figure 8 shows a top view of the locking unit in the basic position, and

[0032] Figure 9 A top view of the locking unit with the triggered locking element is shown. DETAILED DESCRIPTION

[0033] Figure 1 A perspective view shows a mechanic trolley 1, for example, in a conventional configuration. The mechanic trolley 1 has a main body 2 with a front part 3, in which a plurality of drawers 4 are arranged so as to be pull-out. The drawers 4 are arranged at different heights. A rear wall is located in the integral rear area of ​​the mechanic trolley 1. The main body 2 of the mechanic trolley 1 is completed in the lower area by a base element 5 and a placement surface 6. The base element 5 is provided with two fixed rollers 7, which are connected to the base element via roller brackets 8. Furthermore, the mechanic trolley 1 has two rotatable rollers 9 and 10, which are connected to the base element 5 via roller brackets 11 and 12, respectively. The roller brackets 11 and 12 are also provided with fixing elements 13 and 14, which allow the position of the mechanic trolley 1 to be partially fixed.

[0034] The placement surface 6 has a recess 15 in the middle, which is laterally delimited by recessed sections 16 and 17. The entire placement surface 6 is used to support tools, particularly specialized tools, that have been removed from one of the drawers 4 and must be temporarily set down before being used again. Furthermore, tools (not shown) are returned to the drawer 4. For better operation of the mechanic's cart, the cart can be pulled into the desired position after releasing the fastening elements 13 and 14 via the existing engagement slots 18 and 19, and then the fastening elements 13 and 14 can be reengaged. Recesses 20 and 21 are machined into the placement surface 6 on the opposite side of the engagement slots 18 and 19, which allow for the placement of screws, etc., for example. Consequently, there is also an elongated recess behind the engagement slots.

[0035] Here, the side wall 23 of the main body 2 is provided with a plurality of different recesses 24 , 25 , into which hooks can be hooked and other tool parts can be suspended.

[0036] The function of the drawer 4 of the mechanic vehicle 1 cannot be seen from the schematic diagram, but becomes clear from the following figures.

[0037] Figure 2 The perspective diagram shows the Figure 1 The known mechanic's cart 1 comprises a main body 2, a base element 5, a front part 3, a storage surface 6, and drawers 4, one of which is pulled out. Drawer 4 is divided by a conventional replaceable insert 30. Drawer 4 is supported by movable rails 31, which are arranged on both sides of drawer 4 and are fixedly guided within main body 2. Each drawer 4 is constructed similarly and has different heights, but each has a pair of movable hinges 31 designed for greater loads.

[0038] Figure 3 The perspective diagram shows Figure 1 The mechanic trolley 1, wherein in this case all three drawers 4 are pulled out of the mechanic trolley 2. Each drawer 4 is provided with a pair of movable rails 31, which are stable in this respect so as to ensure that each individual drawer 4 is firmly held within the body. The rest is the same as according to Figure 1 The other structures of the repair car 1 are the same.

[0039] Figure 4The perspective, detailed view shows the rear area of ​​the mechanic's cart 1 without the rear wall, specifically the corner area with the movable rollers 9 housed in roller brackets 12. The movable rollers 9 and roller brackets 12 are fixed to the base element 5, only a portion of which is visible. The base plate 32, on which the main body of the mechanic's cart 1 is constructed, rests on the base element 5. The rear wall 33 of the drawers is visible, corresponding to the height of the respective drawer 4. The figure also shows the locking unit 40, which has individual locking elements 41, specifically corresponding to the number of drawers present. The locking elements 41 secure U-shaped plates 42 in such a way that each locking element 41 can be moved vertically upward. The U-shaped plates 42 are held in position by locking pins 43 positioned in holes 44. These locking pins 43 are housed in brackets 45 and are spring-loaded into the holes 44. For unlocking, the locking pin 43 is provided with a ring 46 in the upper region, which enables the locking pin 43 to be easily pulled out of the hole 44. The locking pin 43 can lock the U-shaped plate 42 in a specific position, specifically according to the Figure 4 The second hole 47 is used to lock the locking pin 43 when the U-shaped plate 42 is swung, that is, in another position in which the individual drawers 4 can no longer be locked to each other. Figure 5 Shown in.

[0040] Figure 5 The perspective partial view shows the mechanic vehicle 1, a locking unit 40, and a U-shaped plate 42, with individual locking elements 41 fixed to the base of the plate 42. The locking elements 41 are fixed to the U-shaped plate 42 in the same number of drawers as the drawers, allowing each locking element 41 to be moved in height. This mobility is achieved by having each locking element 41 have two elongated holes 48, 49, into which are inserted securing bolts 50, 51, respectively. These securing bolts 50, 51 are bolts, but can also be rivets, and each have a washer to prevent the locking unit 41 from falling out, while ensuring vertical movement of each locking element 41. Each locking element 41 has a stop surface 52 and rounded portions 53, 54 on its longitudinal sides. These rounded portions 53, 54 serve to better guide a stop element 56, for example, located in the rear region of each drawer 4. The locking element 56 acts on the existing rounded portions 52, 53 by sliding down between the individual locking elements 41 and can be moved upward in the vertical direction. Figure 4 In the first position, the drawer 4 can be locked so that the other drawers are locked when the drawer 4 is pulled out. This is the first position of the locking pin 43 in the hole 44, and Figure 5The second position of the locking pin 43 in the hole 47 is shown, in which the entire locking element 40 is pivoted about the vertical axis and the locking unit 41 is no longer engaged relative to the stop element 56. This allows the drawers 4 to be extended independently of one another, or even all of them in some cases, since they are no longer locked together. The locking pin 43 and the holes 44, 47 form an adjustment element.

[0041] Figure 6 The perspective detail shows the mechanic vehicle 1 from another perspective. In this case, the corner regions of the locking unit 41 are shown again, but the U-shaped plate 42 is omitted, making it clear how the individual locking elements 41 are positioned relative to the locking element 56. In the lower region, a bracket 45 is provided, which carries the locking pin 43, which engages in a hole 44 or 47. Figure 6 In the embodiment of the present invention, the locking pins 43 engage in the holes 44 and thus assume a position in which the drawers 4 are locked to one another. Each movable rail 31 is provided with a locking element 56 on the side, which is movably supported in a longitudinal recess 57. The locking element 56 has a spring preload so that, for example, it can be damped when the drawer 4 is pushed in or pulled out and the locking element 56 is pressed against the locking element 41 by the spring force.

[0042] The outwardly projecting stop element 56 is also coupled to an internal stop element that is a component of the movable rail 31. If the outer stop element 56 cannot move due to the locking element 41, this simultaneously prevents the other drawers 41 from being pulled out.

[0043] This view shows three hinges 58, which allow the U-shaped plate 42 to pivot. The pivot axis is arranged vertically here. The hinges 58 serve only to bring the plate 42 into a position that releases the locking element 56. This view also clearly illustrates the shape of the locking element 41, specifically, its two rounded portions 53 and 54 and the stop surface 52. The locking element 41 operates as follows. In the normal state, the stop element 56 contacts the corresponding adjacent locking element 41 and rests against the rounded portion 54. When the drawer is extended, the spring force guides the stop element 56 along the rounded portion and slides between the two adjacent locking elements 41. Simultaneously, the upper and lower locking elements 41 are pressed apart by the vertical movement of the upper locking element 41, forcing it into a raised position. This causes the other stop element 55 to operate against the stop surface 52. The lower locking element 41, however, is locked in this position, unable to move vertically. This simultaneously prevents the locking elements 56 of the deeper drawer 4 from entering between the locking elements 41 and thus also securely locking the lower drawer 4 .

[0044] Only when the drawer 4 in question, the locking of which has already been triggered, is pushed in completely again, is the locking element 41 unlocked and can be moved again in the vertical direction, whereby another locking element 56 can be triggered.

[0045] Figure 7 The perspective partial view mainly shows the arrangement of the locking unit 40, for example Figure 6 Known arrangement. The difference is that the drawer 4 is pulled out, so that the stop element 56 in question enters between two adjacent locking elements 41. For this reason, the stop element 41 located above it moves vertically upwards and the stop element 41 located below it is locked, so that it cannot move further. All other drawers are thus completely stopped. Only after the drawer 4 in question is pushed in again and the stop element 56 returns to the locking element 41 is the stop triggered again by another stop element 56. It should be noted that the locking pin 43 is located in the hole 44 and thus activates the lock. The second hole 47 represents the second position here, in which the entire locking unit 44 swings relative to the drawer 4 and thus the stop element 56 disengages from the locking element 41. Therefore, in this position all drawers 4 can be pulled out in sequence without being locked to each other.

[0046] Here again from Figure 8 and Figure 9 The blocking element 41 and the locking element 56 can be seen in FIG.

[0047] Figure 8 The top view shows the locking unit 40, which consists of a U-shaped plate 42 and a plurality of locking elements 41. These elements are connected to the U-shaped plate 42 via connecting elements 50, 51, specifically allowing the locking elements 41 to be moved upward in the vertical direction. To this end, the locking elements 41 have elongated holes 48, 49 that allow for vertical movement. A locking pin 43 is secured to the U-shaped plate 42 via a bracket 45. The locking pin 43 engages in a hole 44 and secures the first locked position of the locking unit 40. By pulling on the ring 46 of the locking pin 43, the locking pin can be pulled out of the hole 44 and inserted into another hole (not visible in this view), thereby unlocking the entire drawer 4.

[0048] Figure 8The basic position of the entire drawer 4 is shown here, which is characterized in that the stop element 56 is arranged in the transition area from one locking element 41 to the next locking element and abuts against the rounded portion 54. Therefore, when the drawer 4 is pulled out, the stop element 56 moves in the direction of the drawer being pulled out, whereby the stop element 56 slides between two adjacent locking elements 41, more precisely, along the rounded portion 54. This achieves that the other locking elements 41 located below the moving stop element 56 are locked in their movement and can no longer move upward, while the locking element 41 located above moves upward and is thus also locked. With the movement of the upper locking element 41, the other stop elements 56 reach the stop surface 52, so that the drawer 4 located thereon can no longer be pulled out. Figure 9 This stop is clearly shown again in FIG.

[0049] Figure 9 The top view shows the locking unit 40, specifically in the position where the middle drawer 4 is pulled out. This is achieved by the locking element 56 in question being positioned between two adjacent locking elements 41. The locking element 41 located above the locking element 56 moves upward, causing the other locking element 56 to rest against the stop surface 52, and the other drawer 4 is blocked. The lower locking element 56 is locked in such a way that, due to the immobility of the adjacent locking elements 41, it cannot slide between them, thereby also locking the lower drawer 4. The locking can only be released again after the drawer 4 in question has been pushed in, and the other drawer 4 can be pulled out instead.

[0050] The locking unit 40 described for the mechanic vehicle 1 can also be used in a stationary tool cabinet, wherein other materials can in part be used.

[0051] Reference Signs List

[0052] 1 Mechanic

[0053] 2 Main body

[0054] 3 front

[0055] 4 drawers

[0056] 5 Bottom components

[0057] 6 Placement surface

[0058] 7 Scroll Wheel

[0059] 8 Roller bracket

[0060] 9 Scroll Wheel

[0061] 10 Scroll Wheel

[0062] 11 Roller bracket

[0063] 12 Roller Bracket

[0064] 13 Fixing parts

[0065] 14 Fixing parts

[0066] 15 notch

[0067] 16 recess

[0068] 17 recess

[0069] 18 action slots

[0070] 19 action slots

[0071] 20 concavity

[0072] 21 recess

[0073] 22 recess

[0074] 23 sidewall

[0075] 24 Gap

[0076] 25 Gap

[0077] 30 Inserts

[0078] 31 active tracks

[0079] 32 bottom plate

[0080] 33 posterior wall

[0081] 40 locking units

[0082] 41 Locking element

[0083] 42 boards

[0084] 43 Locking pin

[0085] 44 holes

[0086] 45 bracket

[0087] 46 rings

[0088] 47 holes

[0089] 48 Long hole

[0090] 49 Long hole

[0091] 50 fixed bolt

[0092] 51 fixing bolt

[0093] 52 stop surface

[0094] 53 rounded part

[0095] 54 rounded part

[0096] 56 Stop element

[0097] 57 longitudinal notch

[0098] 58 hinge

Claims

1. A storage unit comprising at least one main body (2), the at least one main body (2) having a plurality of drawers (4) capable of being pulled out, the storage unit comprising at least one locking unit (40), each drawer (4) having a stopper element (56) corresponding to the locking unit (40), characterized in that: The locking unit (40) is configured to be movable between a first position and a second position, and the locking unit (40) has an adjusting element, and the adjusting element is configured to maintain the locking unit (40) in the first position or the second position. In the first position, the locking unit (40) is engaged with a corresponding stop element (56) so that when any one drawer is pulled out, the remaining drawers (4) are locked. In the second position, the locking unit (40) is disengaged from the corresponding stop element (56), thereby releasing at least one or more drawers. The locking unit (40) is composed of a U-shaped plate (42), the number of locking elements (41) corresponds to the number of drawers, and the locking element (41) that can move vertically is arranged on the U-shaped plate (42), and / or the locking element is arranged on the base of the U-shaped plate (42) in a planar manner so as to be pushable, wherein the movement of the locking element is triggered by a corresponding stop element (56).

2. The storage unit according to claim 1, wherein: In the second position of the adjusting element, all drawers (4) are released.

3. The storage unit according to claim 1, wherein: The bottom element (5) of the body (2) is provided with a counterweight for stability.

4. The storage unit according to claim 1, wherein: Each drawer (4) has a movable rail (31), which is provided with the locking element (56) in the rear region and corresponds to the locking unit (40).

5. The storage unit according to claim 4, characterized in that: The locking element (56) is spring-loaded in a longitudinal recess (57) of the movable rail (31) and can be moved back and forth between two stops in the extension direction, wherein the locking element (56) can be moved toward an end position by the drawer (4) against the spring force.

6. The storage unit according to claim 1, wherein: The storage unit is a mechanic vehicle (1) for storing tools.

7. The storage unit according to claim 1, wherein: The locking element (41) has a stop surface (52) for the locking element (56), and / or one or more locking elements (41) can be vertically displaced by means of the locking element (56).

8. The storage unit according to claim 7, wherein: The locking element (41) has two rounded corners on a longitudinal edge, wherein the rounded corners are provided with stop surfaces (52) and wherein the rounded corners face the rear wall of the body (2) after installation.

9. The storage unit according to claim 1, wherein: The U-shaped plate (42) is connected to the main body (2) via at least two hinges (58) in a pivotable manner, wherein the hinges (58) have a vertical axis of rotation.

10. The storage unit according to claim 1, wherein: The U-shaped plate (42) has a bracket (45) for a locking pin (43) preloaded by a spring, which engages with its free end in a hole (44, 47) in the bottom element (5) of the body (2).

11. The storage unit according to claim 10, wherein: At least two holes (44, 47) of the bottom element (5) are provided for locking the U-shaped plate (42) in a first position and in a second position.

12. The storage unit according to claim 6, wherein: The mechanic vehicle (1) has an upper placement surface (6).

13. The storage unit according to claim 12, wherein: The mechanic cart (1) has a molded handle or an engagement groove (18, 19) at least on the narrow side on the placement surface (6).

14. The storage unit according to claim 13, wherein: The narrow side of the mechanic vehicle (1) has a perforated plate or hole for a tool hook.

15. The storage unit according to claim 14, wherein: The mechanic vehicle (1) is equipped with two fixed rollers (7) and at least one rotatable roller (9, 10), and the rollers are further provided with fixing parts (13, 14).

16. The storage unit according to claim 1, wherein: The adjusting element is formed by a spring-loaded locking pin (43) which can be locked in a plurality of holes (44), or by an internal mechanism which is configured to adjust and lock the locking unit (40) from the outside by means of a rotary switch.

17. The storage unit according to claim 16, wherein: The adjusting element is designed in the form of a rotary switch having a cylindrical lock and a key.

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