Grasping unit

Abstract

The present invention relates to a gripping unit (20) for a push handle unit (10) of a manually movable transport vehicle (34), wherein the gripping unit (20) is respectively composed of at least a gripping unit receiving part (22) and a gripping unit plug-in part (24), and the gripping unit receiving part and the gripping unit plug-in part jointly form a suspended upwardly protruding gripping angular part (26) for the push handle unit (10) in the assembled state, wherein a fixing device (16) is formed on the gripping unit receiving part (22) respectively for fixing on the transport vehicle (34), and the gripping unit receiving part (22) and the gripping unit plug-in part (24) are connected to each other by means of at least one groove-tenon connection part (28) in the assembled state.

Description

Field of the Invention

[0001] The invention relates to a gripping unit for a push handle unit of a manually movable transport cart, wherein the gripping unit is at least composed of a gripping unit receiver and a gripping unit insert respectively, and the gripping unit receiver and the gripping unit insert jointly form a suspended upwardly protruding gripping angled portion for the push handle unit in the assembled state. Background Art

[0002] Transport carts for heavy and bulky goods, such as those visible in building material markets or large markets, are usually provided with protruding gripping members. These gripping members allow for a more natural or ergonomic way of holding the cart when moving a loaded cart.

[0003] In addition, protruding grips for a more ergonomic way of holding have also been used for transport carts in retail operations, which are usually arranged at the ends of a horizontally extending cross bar.

[0004] A push grip for a transport cart is known from WO 2012 / 042033 A1, which, in addition to having a transverse or horizontally extending cross bar, also has gripping members protruding at both ends of the push grip, wherein the gripping members can be supported in a rotatable manner about a fixed axis and can also be fixed in a position.

[0005] A grip is known from EP 0 985 200 B1, which has an intermediate member and end members that can be fixed at both ends of the intermediate member, wherein the end members have fixing means for fixing on a transport cart, such as a shopping cart.

[0006] Due to the increased force generated by the protruding gripping members, damage may occur in the push handle units mentioned in the prior art, especially in case of improper use.

[0007] Therefore, an expansion of the push handle unit for a transport cart is desired, which on the one hand optimizes the force introduction and torque introduction caused by the user into the push handle unit by the protruding gripping members, and on the other hand allows the user to change his way of holding and provides both vertical and horizontal gripping possibilities. Summary of the Invention

[0008] The object of the invention is to advantageously expand a gripping unit for a transport cart of the kind mentioned at the beginning, in particular in such a way that the gripping unit can be constructed more simply and assembled more easily, and the vertical gripping possibility of the push handle unit can be improved.

[0009] This task is solved according to the invention by a push handle unit having the features of claim 1. Accordingly, a gripping unit is provided for a push handle unit of a manually movable transport vehicle, wherein the gripping unit is composed of at least a gripping unit receiver and a gripping unit insert respectively, and the gripping unit receiver and the gripping unit insert jointly form a suspended upwardly protruding gripping angled portion for the push handle unit in the assembled state, wherein fixing means are respectively formed on the gripping unit receiver for fixing on the transport vehicle, and wherein the gripping unit receiver and the gripping unit insert are connected to each other in the assembled state by means of at least one groove - tenon connection.

[0010] The present invention is based on the following basic idea: The gripping unit is constructed in a multi - piece manner and consists of at least two components, namely a gripping unit receiver and a gripping unit insert. The connection of the at least two components is achieved by a simple plug - in connection. In order to realize this plug - in connection stably and durably, this plug - in connection is constructed at least by a groove - tenon connection. Through a form - fit connection, a simple and reliable connection between the gripping unit receiver and the gripping unit insert is achieved. The relative movement between the gripping unit receiver and the gripping unit insert is also minimized or almost prevented, so that additional connecting agents, such as adhesives, etc., can even be dispensed with if necessary. The two - piece or multi - piece configuration of the gripping unit enables more free and improved configuration possibilities, especially in terms of the shape of the gripping unit insert, which forms the upper part of the gripping angled portion in the assembled state. Therefore, an ergonomic shape can be more easily achieved, which may require multiple side recesses (Hinterschnitt) or other free - form surfaces if necessary, and thus poses corresponding challenges to the manufacturing process. By dividing into a gripping unit receiver and a gripping unit insert, the complexity in manufacturing is significantly reduced. For example, the manufacturing can be realized by means of plastic injection molding.

[0011] Furthermore, it can be provided that at least one tenon of the groove - tenon connection is constructed by a raised portion and / or a lifted portion formed by the surface structure of the gripping unit receiver and / or the gripping unit insert. This raised portion can also be produced by an injection molding method, for example, by corresponding structuring of the injection molding die and by means of forced demolding (Zwangsentformung) from the die. The raised portion or the lifted portion is constructed integrally or (material - integrally) from the surface of the gripping unit receiver and / or the gripping unit insert. Therefore, simple and low - cost manufacturing can be achieved. In addition, thus, the groove - tenon connection can be configured stably and durably.

[0012] Furthermore, at least one groove of the tongue-and-groove connection is configured by means of depressions and / or grooves in the surface of the gripper unit receptacle and / or the gripper unit insert. Here, production can also be achieved by means of an injection molding method, for example by appropriate structuring of an injection molding tool and by means of forced demolding from the tool. Such surface structuring can be produced simply and at the same time a good form-fit for the tongue-and-groove connection can be achieved.

[0013] The tongue and / or the groove can be configured substantially annularly. This results in an improved form-fit effect. In particular, it can be considered that there is an encircling tongue ring which is inserted into an encircling annular groove. In principle, it can further be considered that the annular groove / tongue configuration is also configured in an encircling segmented manner or with interruptions. This allows for a uniform load at the form-fit location, i.e., in the region where form-fit or ring-lock is achieved. Thereby, an improved connection and an improved retention can be achieved.

[0014] The gripper unit receptacle and / or the gripper unit insert can be configured substantially cup-shaped. This enables a simpler connection of the gripper unit receptacle and the gripper unit insert. Therefore, it can be considered to push one element into the other or to insert two cup-shaped components into one another.

[0015] Furthermore, it can be considered that the gripper unit receptacle and / or the gripper unit insert are configured at least in sections as double-walled. By means of this double-walled configuration, other possibilities for form-fit are obtained by inserting the gripper unit receptacle and the gripper unit insert into one another. Here, it can be considered that one component is configured in sections as double-walled, while the other component is not configured as double-armed, i.e., is configured as single-walled only in the insertion region. Then, the single-walled component in the insertion region can be simply and definitely inserted into the component configured in sections as double-walled.

[0016] In particular, it can be considered that the gripper unit receptacle and / or the gripper unit insert, by means of their double-walled configuration, form an open annular gap into which the wall of the gripper unit receptacle or the gripper unit insert is inserted in the assembled state. By configuring the annular gap, defined insertion possibilities are provided for other components, i.e., either for the gripper unit receptacle or for the gripper unit insert.

[0017] The tongue-and-groove connection can be arranged and configured in the annular gap.

[0018] It can be considered that only one component is configured as double-walled and has an annular gap, while the other component is configured as single-walled in the insertion region which is received in the annular gap.

[0019] In particular, it can be further provided that the annular gap is delimited by an inner wall and an outer wall, wherein, measured from the bottom of the annular gap, the inner wall is longer than the outer wall. Thus, stability is achieved by the dimensions of the inner wall, and the inner wall protrudes beyond the height of the outer wall. Thus, the inner wall can be used as an additional support and fixing part in the assembled state. In addition, during the assembly of the gripping unit, the inner wall also serves as a guiding element.

[0020] Furthermore, it can be provided that the gripping unit receptacle and the gripping unit plug each have plug-in elements which are located inside the gripping unit and engage with each other in the assembled state of the gripping unit. These plug-in elements or complementary plug-in elements can be arranged centrally in the gripping unit. Thereby, additional stability and an additional plug connection are achieved.

[0021] In particular, the plug-in elements can engage with each other according to the key-lock principle. Thereby, simple and secure assembly can be achieved.

[0022] Furthermore, it can be considered that one of these plug-in elements is configured cross-shaped, in particular double-cross-shaped, with respect to its cross-section. The stability and also the rigidity are increased by the cross-shaped cross-section. In addition, in particular, bending that might occur is prevented. The cross-shaped configuration also enables secure retention in the complementarily configured mating part.

[0023] However, in principle, it can also be considered to select a suitable other cross-section instead of the cross-shaped cross-section, that is, in particular, one of these plug-in elements is configured with an anti-bending cross-section. This can be achieved, for example, by a shape having ribs and / or ridges, etc. Convex and concave shapes can also be used to increase stability.

[0024] Furthermore, it can be provided that the tongue-and-groove connection has a plurality of grooves with different depths. By the special shape of the tongue-and-groove geometry, low assembly forces can be achieved, but correspondingly high disassembly forces (pull-out forces) can be achieved. For this purpose, the annular grooves can be formed with different depths in the assembly direction of the gripping corner part. This is achieved, for example, by a surrounding wedge-shaped feed area which increases the undercut. The undercut makes assembly easier and disassembly more difficult. Description of the Drawings

[0025] Now, other details and advantages of the present invention will be explained based on the embodiments further shown in the drawings. The drawings show:

[0026] Figure 1 A perspective view of the basic structure of a push handle unit having a gripping unit according to the present invention;

[0027] Figure 2A perspective view of a shopping cart having a push handle unit according to Figure 1 ;

[0028] Figure 3 A perspective view of another embodiment of a push handle unit having a grip unit according to the present invention;

[0029] Figure 4 A perspective view of an assembled grip unit according to the present invention;

[0030] Figure 5 According to Figure 4 An exploded view of the grip unit;

[0031] Figure 6 According to Figure 4 A separate view of the grip unit receiving part of the grip unit;

[0032] Figure 7 According to Figure 4 A separate view of the grip unit plug of the grip unit;

[0033] Figure 8 According to Figure 4 A partial cross-sectional view of the grip unit;

[0034] Figure 8a Figure 8 A detail view of detail A; and

[0035] Figure 9 Figure 8 Another detail view of detail A. DETAILED DESCRIPTION

[0036] Figure 1 An embodiment of a grip unit 20 according to the present invention for a push handle unit 10 is shown in perspective.

[0037] The push handle unit 10 has a cross brace 12, which is embodied here as a transverse rod.

[0038] However, the cross brace 12 may also have an intermediate member 13' and two grip sections 18' separated from each other by the intermediate member 13' (see Figure 3 ).

[0039] However, the cross brace 12 may also have a coin deposit system, as disclosed, for example, in EP 0 985 200B1.

[0040] As Figure 1 shown, in the assembled state, the push handle unit 10 further has an end member 14 at each end of the cross brace 12, and these end members are constructed identically to each other in a mirror-inverted manner.

[0041] The end part 14 has a fixing device 16 for fixing the end part 14 to a manually movable transport cart 34 (see Figure 2 ).

[0042] Such a transport cart 34 can be a shopping cart or a transport cart for a building materials market.

[0043] In the regions of the two ends of the cross brace 12, two gripping sections 18 are respectively provided, and these gripping sections are the normal gripping positions of the person who pushes the transport cart 34 during the normal pushing operation of the transport cart 34.

[0044] As Figure 3 can be seen, two gripping sections 18' separated by a section of the intermediate member 13' are provided.

[0045] The pushing handle unit 10 respectively has a suspension and upwardly protruding gripping unit 20 according to the invention on the two end parts 14.

[0046] Here, each gripping unit 20 is at least composed of a gripping unit receiving part 22 and a gripping unit insert 24.

[0047] In the assembled state, a radially surrounding outer demarcation joint 24c exists between the gripping unit receiving part 22 and the gripping unit insert 24 on their contact surfaces with each other.

[0048] In the assembled state, the gripping unit receiving part 22 and the gripping unit insert 24 together form a suspended and upwardly protruding gripping angled part 26 for the pushing handle unit 10.

[0049] A fixing device 16 is respectively formed on the gripping unit receiving part 22, and this fixing device is used to fix the end part 14 to the transport cart 34.

[0050] Here, in the illustrated embodiment, the fixing device 16 and the gripping unit receiving part 22 are integrally formed.

[0051] From Figure 5 and Figure 6 other details can be seen.

[0052] Here, the gripping unit receiving part 22 is formed in a cup shape.

[0053] Here, the gripping unit insert 24 is inserted into the cup-shaped gripping unit receiving part 22 or is latched in the gripping unit receiving part through a groove-tongue connection part 28.

[0054] In the assembled state, the gripping unit receiving part 22 and the gripping unit insert 24 are at least partially form-locked and engaged with each other.

[0055] Here, the end part 14 is constructed of plastic, here polyamide, i.e. PA6GF15. In principle, embodiments made of polypropylene (PP) or similar thermoplastics can also be considered. In principle, the use of fiber-reinforced plastics can also be considered, and they are also suitable.

[0056] The grip unit receiving part 22 and the grip unit insert 24 can be constructed of the same material.

[0057] However, this is not mandatory, and it can also be considered that the grip unit receiving part 22 and the grip unit insert 24 are at least partially constructed of different materials as shown here.

[0058] Therefore, it is provided here that the grip unit receiving part 22, like the end part 14, is constructed of plastic, while the grip unit insert 24 is partially constructed of a rubber material to achieve better gripping characteristics.

[0059] The shape of the grip unit 20 is generally such that the grip unit provides the following gripping possibilities: These grip units are ergonomically matched to the hand of the user of the push handle unit 10.

[0060] Recesses for the fingers, a placement surface, and recesses and corresponding protrusions for the thumb can also be considered, which are matched to the shape of the user's hand.

[0061] Therefore, in particular, it can be considered to provide a special placement surface for the palm with protrusions, which can be placed directly on the inner side of the palm accordingly.

[0062] Overall, the grip unit 20 is thus ergonomically matched, wherein the configuration is selected such that the configuration is suitable for both small hands and large hands and the height and cross-section are correspondingly matched thereto.

[0063] Through the improved placement of the hand and the corresponding ergonomic configuration, the force can also be introduced into the grip unit 20 more simply.

[0064] Through the improved placement possibilities of the hand on the grip unit 20, the user can also move a heavy shopping cart or transport vehicle more simply.

[0065] Figure 2 The push handle unit 10 is shown in a perspective view in the assembled state on the shopping cart 34.

[0066] The fixing device 16 for fixing on the manually movable transport vehicle 34 is constructed such that the fixing device can be arranged on the corresponding attachment part of the transport vehicle 34.

[0067] There, either only a form-fitting fixation can be provided, or a form-fitting fixation with additional bolt fixation, riveting or screwing can be provided.

[0068] In principle, it can be considered that the fixing device 16 is arranged on a part of a basket or a support of the running chassis of the transport cart 34.

[0069] Figure 3 Another embodiment of the pushing handle unit 10' is shown in a perspective view, which alternatively can be assembled on Figure 2 the shopping cart 34 shown therein.

[0070] Here, the cross brace 12' has an intermediate piece 13', which is configured as a coin deposit system 35'.

[0071] The coin deposit system 35' further has a display area 37', in which an advertisement can be clipped in.

[0072] The end part 14' with the grip unit receptacle 22' and the grip unit insert 24' is constructed identically to Figure 1 and Figure 2 the embodiment shown therein.

[0073] Figure 4 A perspective view of the assembled grip unit 20 according to the invention is shown.

[0074] Here, the grip unit receptacle 22 and the grip unit insert 24 have been inserted into each other in a form-fitting manner and assembled.

[0075] In the assembled state, the grip unit receptacle 22 and the grip unit insert 24 are connected to each other in particular by means of at least one groove-tongue connection 28.

[0076] The end part 14 is also shown.

[0077] Figure 5 A disassembled view of the grip unit 20 according to Figure 4 is shown.

[0078] The wall 48 of the grip unit receptacle 22 is shown therein.

[0079] The wall 48 is formed on the grip unit receptacle 22 as a sleeve-shaped attachment and forms the end region of the grip unit receptacle 22.

[0080] Elongated, largely arranged guide grooves are introduced into the inner surface of the wall 48.

[0081] In the assembled state, these guide grooves extend from the end of the wall 48 facing the grip unit insert 24 to the base of the grip unit receptacle 22.

[0082] The gripping unit receiving part 22 is at least sectionally hollowly constructed.

[0083] In the assembled state, an elongate guide bar corresponding to the size of the guide groove is inserted into these guide grooves, and the guide bar is formed on the outer surface of the inner wall 52 of the gripping unit insert 24.

[0084] The inner wall 52 of the gripping unit insert 24 is constructed as a sleeve-shaped inner attachment part and is formed in the region of the tip of the gripping unit insert 24 at the bottom.

[0085] Furthermore, the inner wall 52 projects beyond the end of the outer wall 54 of the gripping unit insert 24 that faces the gripping unit receiving part 22 in the assembled state.

[0086] Figure 5 It is also shown that two grooves 42, 44 of the groove and tongue connection 28 are introduced into the surface 38 of the gripping unit receiving part 22.

[0087] According to Figure 5 , the surface 38 of the gripping unit receiving part 22 is constructed as the outer surface of this wall 48.

[0088] Furthermore, the grooves 42, 44 are annularly constructed in this wall.

[0089] In this case, the surface 40 is constructed as the inner surface of the outer wall 54 of the gripping unit insert 24 (see Figure 7 ).

[0090] Figure 6 Shown is a separate view of the gripping unit receiving part 22 of the gripping unit 20 according to Figure 4 .

[0091] The gripping unit receiving part 22 is cup-shaped.

[0092] In the illustrated embodiment, the gripping unit insert 24 (see Figure 5 ) is cup-shaped.

[0093] In Figure 6 a top view of the base or interior of the fixing device 16 is visible, which has a hollow receiving part that is arranged for placement in a fixed position on the transport vehicle 34.

[0094] Furthermore, an attachment part 60 for insertion into the respective gripping section 18 is visible.

[0095] The attachment part 60 has a spring-loaded latch hook 62 for achieving latching in the gripping section 18.

[0096] In the assembled state, the catch hook 62 engages in a corresponding catch groove of the gripping section (not shown further).

[0097] Figure 7 Shows a separate view of the gripping unit insert 24 of the gripping unit 20 according to Figure 4 the gripping unit 20.

[0098] The outer surface 64 of the gripping unit insert 24 of the gripping unit 20 in the assembled state is ergonomically shaped and has in particular a recess 66 in the region of the tip of the gripping unit insert 24.

[0099] The recess 66 is optional and is implemented in the illustrated embodiment here. Other embodiments do not have to implement the recess 66.

[0100] A user of the transport cart 34 can, for example, place their thumb into the recess 66.

[0101] Furthermore, the gripping unit insert 24 is at least sectionally double-walled.

[0102] In this way, the gripping unit insert 24 forms an open annular gap 46 in a double-walled configuration.

[0103] The annular gap 46 is open on one side and extends from the bottom of the closed region of the tip of the gripping unit insert 24 in the direction of the end of the gripping unit insert 24 facing the gripping unit receiving part 22 in the assembled state.

[0104] Furthermore, the annular gap 46 is bounded by an inner wall 52 and an outer wall 54.

[0105] Measured from the bottom of the annular gap 46, the inner wall 52 is longer than the outer wall 54.

[0106] The inner wall 52 and the outer wall 45 merge into a common wall 50 in the closed region of the tip of the gripping unit insert 24 and thus form the bottom of the gripping unit insert 24.

[0107] The inner wall 52 and the outer wall 45 can also be cup-shaped.

[0108] The inner wall 52 also has a projection 52a.

[0109] The projection 52a is hook-shaped and is an integral projection of the wall 52.

[0110] This projection serves to guide the gripping unit insert 24 during assembly with respect to the gripping unit receiving part 22 and for the form-locking support and fixation of the gripping unit receiving part and the gripping unit insert in the assembled state.

[0111] Alternatively, it can be provided that the gripping unit receiving part 22 has a double-wall structure at least in sections.

[0112] Additionally, it can also be considered that the gripping unit receiving part 22 forms an open annular gap with its double-wall structure.

[0113] The two tenons 30 of the groove-tenon connection part 28 shown in Figure 7 are formed by the raised parts 32, 36 from the surface 40 of the gripping unit insert 24.

[0114] According to Figure 7 , the surface 40 of the gripping unit insert 24 is configured as the inner surface of the outer wall 54 of the gripping unit insert 24.

[0115] The two tenons 30 shown in Figure 7 are formed annularly.

[0116] Furthermore, it can be considered that the two tenons 30 of the groove-tenon connection part 28 shown in Figure 7 are formed by the raised parts 32 or the lifted parts 36 from the surface 38 of the gripping unit receiving part 22.

[0117] In this case, the surface 38 is also configured as the outer surface of the wall 48 of the gripping unit receiving part 22 (see Figure 5 ).

[0118] Figure 8 A cross-sectional view of the gripping unit 20 according to Figure 4 is shown, and based on this cross-sectional view, the structurally form-locking connection part formed by the groove-tenon connection part 28 should be further elaborated in particular.

[0119] Correspondingly, Figure 8a a more detailed view of the groove-tenon connection part 28 of the detail A shown in Figure 8 is shown.

[0120] In Figure 9 a more detailed detail view of the detail A shown in Figure 8 is shown.

[0121] According to Figure 8 a gripping unit insert 24 is shown, which has a double-wall structure and an open annular gap 46 formed thereby.

[0122] In the assembled state of the gripping unit 20, the wall 48 of the gripping unit receiving part 22 is inserted into this annular gap 46.

[0123] Thus, in the assembled state, the gripping unit insert 24 axially surrounds the gripping unit receiving part 22 extensively and in sections by means of its outer wall 54.

[0124] By means of this insertion, a double-acting slot-and-tenon connection 28 as shown in Figure 8 and Figure 8a can be produced.

[0125] In this context, single or multiple slot-and-tenon connections 28 can also be considered.

[0126] For this purpose, two annular tenons 30 are formed on the inner surface 40 of the outer wall 54 of the gripping unit insert 24 in the form of elevations 32 or raised portions 36, according to Figure 8 , 8a, which tenons are inserted or latched into two annular slots 42, 44 corresponding to their dimensions.

[0127] The tenons 30 are forced out of the injection mold.

[0128] Correspondingly, the two annular slots 42, 44 are introduced into the surface 38 of the gripping unit receiver 22.

[0129] The slots 42, 44 are also at least partially forced out of the injection mold.

[0130] According to Figure 8 , the surface 38 of the gripping unit receiver 22 is configured as the outer surface of the wall 48 of the gripping unit receiver 22 (see Figure 5 ).

[0131] The outer surface of the gripping unit receiver 22 is at least partially configured in a large-scale wedge shape in the axial direction, where the diameter of the wedge section becomes larger in the direction towards the bottom of the gripping unit receiver 22.

[0132] The two annular slots 42, 44 are introduced radially offset from each other in the outer surface of the wall 48 of the gripping unit receiver 22.

[0133] Thereby, the undercut of the outer surface of the wall 48 of the gripping unit receiver 22 is increased.

[0134] Likewise, the inner surface 40 of the outer wall 54 of the gripping unit insert 24 is at least partially configured in a large-scale wedge shape in the axial direction, where the diameter of the wedge section becomes larger in the direction towards the bottom in the region of the tip of the gripping unit insert 24.

[0135] Furthermore, the tenons 30 in the form of elevations 32 or raised portions 36 are formed radially offset from each other on the inner surface 40 of the outer wall 54 of the gripping unit insert 24.

[0136] Thereby, the undercut of the inner surface 40 of the outer wall 54 of the gripping unit insert 24 is also increased.

[0137] In addition, especially by Figure 8It can be seen that the gripping unit receiving part 22 and the gripping unit plug-in part 24 each have plug-in elements 56, 58.

[0138] In the assembled state of the gripping unit 20, the two plug-in elements 56, 58 are located inside it and are also engaged with each other.

[0139] The plug-in element 56 of the gripping unit receiving part 22 extends parallel to the inner surface of the wall 48 of the gripping unit receiving part.

[0140] The plug-in element 56 of the gripping unit receiving part 22 is integrally formed in the bottom of the gripping unit receiving part 22 and is lifted from this bottom and extends axially within the gripping unit receiving part 22.

[0141] The plug-in element 58 of the gripping unit plug-in part 24 extends parallel to the inner wall 52 of the gripping unit plug-in part. The plug-in element 58 of the gripping unit plug-in part 24 is integrally formed in the bottom in the region of the tip of the gripping unit plug-in part 24 and is lifted from this bottom and projects axially beyond the outer wall 54 of the gripping unit plug-in part.

[0142] Furthermore, the plug-in element 58 of the gripping unit plug-in part 24 axially extends into the plug-in element 56 of the gripping unit receiving part 22 until the receiving part of the plug-in element, thereby improving the support between the gripping unit receiving part 22 and the gripping unit plug-in part 24 in the assembled state.

[0143] Therefore, the plug-in elements 56, 58 are engaged with each other according to the key-lock principle.

[0144] Generally, the plug-in element 58 of the gripping unit plug-in part 24 has at least three times the length compared to the plug-in element 56 of the gripping unit receiving part 22. But this is not mandatory. The covering part of the plug-in element 58 can reach the demarcation joint 24c or be implemented to project slightly.

[0145] Furthermore, the plug-in element 58 of the gripping unit plug-in part 24 is configured in a double cross shape with respect to its cross section.

[0146] In addition, the plug-in element 56 of the gripping unit receiving part 22 has a double cross-shaped receiving part that matches the cross section of the plug-in element 58 of the gripping unit plug-in part 24.

[0147] The function of the push handle unit 10 with the gripping unit 20 according to the present invention can be described as follows:

[0148] Through the gripping section 18, the pushing of a transport vehicle (not further shown) can be achieved as follows, that is, the transport vehicle can be gripped and pushed in the usual way with a horizontally placed hand.

[0149] With the gripping unit 20, it is possible to more easily push and pull the transport cart, especially when the transport cart is loaded.

[0150] Due to the two-piece construction of the gripping unit 20, that is, by means of the gripping unit receptacle 22 and the gripping unit insert 24, it is easier to replace the components of the gripping unit 20 in case of damage.

[0151] Additionally, due to the aforementioned configuration of the tongue-and-groove connection 28 within the gripping unit receptacle 22 and the gripping unit insert 24, the assembly of the gripping unit 20 is generally made easier and its improper disassembly is correspondingly made more difficult.

[0152] Thereby, in particular, it is possible to effectively prevent the improper pulling out of the gripping unit insert 24 from the gripping unit receptacle 22.

[0153] Therefore, a stable and self-supporting gripping unit 20 can be achieved in the assembled state.

[0154] Furthermore, due to the aforementioned configuration of the tongue-and-groove connection 28 in a very narrow space, it is possible to manufacture this tongue-and-groove connection by forced demolding with an injection molding method.

[0155] This allows for the correspondingly low-cost manufacturing of the geometry of the tongue-and-groove connection 28.

[0156] Additionally, such a tongue-and-groove connection 28 can also be adapted to other gripping units 20 for various different applications in the push handle unit 10.

[0157] Furthermore, a better ergonomic shaping of the gripping unit 20 can be achieved.

[0158] Moreover, the gripping unit insert 24 can be assembled after the supply transport, whereby the supply transport can be made easier.

[0159] Even in the case of damage to the gripping unit insert 24, these gripping unit inserts can be replaced and exchanged without problems, without having to completely disassemble the entire push handle unit 10.

[0160] Not only the gripping unit receptacle 22 but also the gripping unit insert 24 or the end part 14 can be manufactured by an injection molding method.

[0161] Possible materials are, for example, impact-resistant, injection-moldable plastics such as polypropylene PP.

[0162] The injection-moldable plastics can be fiber-reinforced or also non-fiber-reinforced.

[0163] List of Reference Numerals

[0164] 10 Push handle unit

[0165] 12 cross brace

[0166] 14 end member

[0167] 16 fixing device

[0168] 18 gripping section

[0169] 20 gripping unit

[0170] 22 gripping unit receiving part

[0171] 24 gripping unit plug

[0172] 24c demarcation joint

[0173] 26 gripping angle part

[0174] 28 groove - tenon connection

[0175] 30 tenon

[0176] 32 raised part

[0177] 34 transport vehicle

[0178] 36 lifting part

[0179] 38 surface of the gripping unit receiving part

[0180] 40 surface of the gripping unit plug

[0181] 42 groove

[0182] 44 groove

[0183] 46 open annular gap

[0184] 48 wall of the gripping unit receiving part

[0185] 50 wall of the gripping unit plug

[0186] 52 inner wall

[0187] 52a protrusion of the inner wall

[0188] 54 outer wall

[0189] 56 plugging element of the gripping unit receiving part

[0190] 58 plugging element of the gripping unit plug

[0191] 60 attachment part for inserting into the gripping section

[0192] 62 locking hook

[0193] The outer surface of the 64 grip unit plug-in

[0194] The recess of the 66 grip unit plug-in

[0195] 10' Push handle unit

[0196] 12' Cross brace

[0197] 13' Middleware

[0198] 14' End component

[0199] 18' Grip section

[0200] 22' Grip unit receiving part

[0201] 24' Grip unit plug-in

[0202] 35' Coin deposit system

[0203] 37' Display area

Claims

1. A gripping unit (20) for a push handle unit (10) of a manually movable transport vehicle (34), wherein, the gripping unit (20) is composed of at least a gripping unit receiving part (22) and a gripping unit insert (24) respectively. The gripping unit receiving part and the gripping unit insert jointly form a suspended upwardly protruding gripping angled part (26) for the push handle unit (10) in the assembled state. A fixing device (16) is formed on the gripping unit receiving part (22) respectively for fixing on the transport vehicle (34). The gripping unit receiving part (22) and the gripping unit insert (24) are connected to each other by at least one groove - tenon connection part (28) in the assembled state. The gripping unit receiving part (22) and / or the gripping unit insert (24) are at least sectionally double - walled in construction, and wherein the gripping unit receiving part (22) and / or the gripping unit insert (24) form an open annular gap (46) through the double - walled construction of the gripping unit receiving part / the gripping unit insert. In the assembled state, the walls (48, 50) of the gripping unit receiving part (22) or the gripping unit insert (24) are inserted into the open annular gap. The annular gap (46) is bounded by an inner wall (52) and an outer wall (54). Measured from the bottom of the annular gap (46), the inner wall (52) is longer than the outer wall (54). The at least one groove - tenon connection part (28) is located in the annular gap.

2. The gripping unit (20) according to claim 1, characterized in that, at least one tenon (30) of the groove - tenon connection part (28) is formed by a raised part (32) and / or a lifted part (36) from the surfaces (38, 40) of the gripping unit receiving part (22) and / or the gripping unit insert (24).

3. The gripping unit (20) according to claim 1 or 2, characterized in that, at least one groove (42) of the groove - tenon connection part (28) is formed by a recess and / or a groove (44) in the surfaces (38, 40) of the gripping unit receiving part (22) and / or the gripping unit insert (24).

4. The gripping unit (20) according to claim 2, characterized in that, the tenon (30) and / or the groove (42) are substantially annularly formed.

5. The gripping unit (20) according to claim 3, characterized in that, the tenon (30) and / or the groove (42) are substantially annularly formed.

6. The gripping unit (20) according to claim 1 or 2, characterized in that, the gripping unit receiving part (22) and / or the gripping unit insert (24) are substantially cup - shaped in construction.

7. The gripping unit (20) according to claim 1 or 2, characterized in that, The gripping unit receiving part (22) and the gripping unit plug-in part (24) each have plug-in elements (56, 58) which, in the assembled state of the gripping unit (20), are located inside the gripping unit (20) and engage with each other.

8. The gripping unit (20) according to claim 7, characterized in that the plug-in elements (56, 58) engage with each other according to the key-lock principle.

9. The gripping unit (20) according to claim 7, characterized in that one of the plug-in elements (56, 58) is cross-shaped with respect to its cross-section, and / or one of the plug-in elements (56, 58) has a cross-section that is resistant to bending.

10. The gripping unit (20) according to claim 1 or 2, characterized in that the groove-tenon connection part (28) has a plurality of grooves with different depths.

11. The gripping unit (20) according to claim 7, characterized in that one of the plug-in elements (56, 58) is double-cross-shaped with respect to its cross-section.

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