Dispensing device

Abstract

The invention relates to a dispensing device (100) for dispensing viscous and non-viscous materials from a cartridge (1). The dispensing device comprises a base structure (48), a plunger (3), a drive mechanism and a drive member (4) configured to transmit a drive force from the drive mechanism to the plunger (3). The drive member (4) is a bendable drive rod which is coupled to the drive mechanism in a non-releasable manner, in particular via a shaft plug (7). The drive member (4) is a continuous coil of spring steel formed from a wire having a substantially square cross-section and a thickness corresponding to the coil pitch.

Description

Technical Field

[0001] The present invention relates to a dispensing device for dispensing materials from a cylinder filled with viscous and non-viscous materials. Background Technology

[0002] To date, various configurations of such dispensing devices are known. Such dispensing devices can use, for example, so-called single-component cylinders, coaxial cylinders, or side-by-side cylinders to dispense single-component or multi-component materials, and the cylinders can be presented as so-called solid cylinders, collapsible cylinders, or sausage bag-type cylinders.

[0003] However, there is always a need for further improvement in such devices. Summary of the Invention

[0004] Therefore, the object of the present invention is to provide an improved configuration for such dispensing devices. This object is achieved by the subject matter of independent claim 1. Preferred modifications can be derived from the dependent claims.

[0005] According to a first aspect of the invention, a dispensing device for dispensing viscous and non-viscous materials from a barrel includes: a base structure; a plunger configured to translate relative to the base structure; a drive mechanism configured to cause the plunger to perform dispensing movement relative to the base structure; and a drive member configured to transmit a driving force from the drive mechanism to the plunger. The drive member is a flexible drive rod coupled to the drive mechanism in a non-releasable manner (particularly via a piston). The drive member is a continuous coil of a spring material (such as spring steel), the spring material being formed of a wire having a substantially square cross-section and a thickness corresponding to the coil pitch.

[0006] In this way, cost-effective springs can be implemented in the dispensing device. For this purpose, other types of metals or materials besides steel can be used.

[0007] In this document, the term "flexible" refers to the ability of the drive member to deform reversibly (particularly elastically) along its length. The non-releasable connection between the drive member and the drive mechanism prevents any slippage between them and allows for a very robust and durable configuration. A coil configuration of wire with a square cross-section forms the drive member, and its specific thickness produces a simple yet very robust overall configuration capable of reliably transmitting driving force from the drive mechanism to the plunger. For clarity, it should be noted that the statement "a drive mechanism configured to cause the plunger to make dispensing movement relative to the base structure" actually refers to a drive mechanism configured to allow the plunger to enter and move along a barrel connected to the dispensing device (particularly the base structure) (particularly via the drive member) to expel material from the barrel for dispensing.

[0008] Preferably, the drive member has a diameter of 10 mm to 25 mm, and more preferably a diameter of 13 mm to 22 mm.

[0009] This feature makes the overall connection between the drive mechanism and the plunger more stable.

[0010] According to a second aspect of the invention, a dispensing device for dispensing viscous and non-viscous materials from a barrel includes: a base structure; a plunger configured to translate relative to the base structure; a drive mechanism configured to cause the plunger to perform dispensing movement relative to the base structure; and a drive member configured to transmit a driving force from the drive mechanism to the plunger. The drive member is a flexible drive rod coupled to the drive mechanism in a non-releasable manner (particularly via a piston). The drive member is formed of a first component made of a flexible material and a second component made of a rigid material, coupled to each other, such that the drive member is configured to transmit lateral forces along its length but bends under lateral forces acting upon it.

[0011] The multi-component configuration of such drive components allows for highly flexible customization and optimization of specific requirements. The term "rigid" is understood in this document as meaning that, during normal operation of the drive unit, the corresponding component cannot deform under a certain amount of force expected to be applied to it. The term "flexible" is understood in this document as meaning that, during normal operation of the drive unit, the corresponding component can deform under a certain amount of force expected to be applied to it.

[0012] Preferably, the drive component is formed of a plurality of substantially identical sections that are non-releasably connected to each other. Each of the sections includes, in particular, at least one (preferably a plurality of) spring components, joint components, and / or spacers.

[0013] By using the same sections, the cost of producing drive components can be reduced, and the listed components have been found to be suitable for forming robust and reliable drive components.

[0014] Preferably, the dispensing device includes a guiding device having at least one, preferably multiple, of the following components for guiding the dispensing movement of the drive member: a clamshell, a low-friction plate, a low-friction insert, and / or a roller.

[0015] Such components prevent the reaction force acting on the plunger during dispensing operations from causing undesirable lifting of the drive component from the drive spool.

[0016] Preferably, the drive member is configured to convert the rotary drive movement from the drive mechanism into the translational distribution movement of the plunger.

[0017] This implementation allows for a very compact overall configuration.

[0018] Preferably, the dispensing device is an electrically driven, particularly wireless, handheld device, and the drive mechanism includes a motor gearbox.

[0019] In this regard, it should be noted that the dispensing device can also be a manual dispensing device, which includes a gear mechanism to convert the action of pulling the lever of the dispensing device into the pushing movement of the plunger.

[0020] Preferably, the gear mechanism is adapted to convert the action of the pull rod into a continuous or quasi-continuous pushing movement of the plunger.

[0021] These types of dispensing devices are easy to operate and flexible to use.

[0022] Preferably, when connected to the base structure, the longitudinal axis of the motor gearbox is aligned parallel to the longitudinal axis of the barrel. The drive mechanism includes at least one, preferably several, of the following components: spur gear, compound gear, bevel gear, worm gear, wheel, belt drive, chain, sprocket, and / or friction wheel.

[0023] This configuration can be achieved with minimal width. The other listed components allow for a reliable connection between the motor gearbox and the drive spool, resulting in a very compact overall configuration.

[0024] Preferably, when connected to the base structure, the longitudinal axis of the motor gearbox is perpendicularly aligned with the longitudinal axis of the barrel. The motor output gear of the motor gearbox directly engages with the drive shaft to drive the drive component.

[0025] This configuration can be achieved with minimal components, and is therefore very robust and durable.

[0026] Preferably, the dispensing device includes a guiding device, particularly in the form of a guide wheel and / or guide sleeve, for guiding the drive member during dispensing movement.

[0027] Such guiding devices allow for reliable and well-controlled guidance of drive components during allocation movements.

[0028] Preferably, the drive member is guided through a shaft housing that defines a bending path for changing (especially reversing) the direction of movement of the drive member.

[0029] Such curved paths allow for a very compact overall configuration, while the housing outlines a very robust and reliable implementation for defining such curved paths.

[0030] Preferably, the drive mechanism includes a circular drive spool rotatably coupled to the base structure. A drive member is wound at least partially around the drive spool, particularly through its rear portion. The dispensing device is configured such that rotational movement of the drive spool causes the drive member to unwind from the drive spool, thereby generating a translational axial directional force from the unwound drive member to the plunger, causing the plunger to perform a translational dispensing movement relative to the base structure.

[0031] The rotation of the drive spool is used to drive the drive components to produce a very stable overall configuration, with minimal slippage between the drive mechanism and the drive components.

[0032] Preferably, the drive spool includes at least one of an inner peripheral surface, an outer peripheral surface, and a side surface, having gear teeth that engage with an output gear of a drive mechanism for driving the drive spool. Alternatively, the drive spool includes at least one of an inner peripheral surface, an outer peripheral surface, and a side surface, having ratchet teeth that engage with a ratchet or pawl device of the drive mechanism for driving the drive spool.

[0033] Gear drives allow for high spatial flexibility, enabling space-efficient implementations of drive mechanisms. Ratchet drives are structurally very simple and therefore highly reliable.

[0034] Preferably, the drive member is wound only partially around the drive reel.

[0035] This allows for the provision of a guide device for the drive component in the path between the rear portion of the drive component and the plunger.

[0036] Preferably, the drive spool includes a guide groove on the outer peripheral surface of the drive spool for guiding the dispensing movement of the drive component.

[0037] Therefore, it reliably prevents the drive components from slipping off the drive spool.

[0038] Preferably, the dispensing device includes a housing configured to at least partially enclose the drive reel and have a central opening, allowing a user to hold the dispensing device by gripping the opening.

[0039] This configuration allows for the creation of a very compact and easy-to-operate dispensing device.

[0040] Preferably, the drive mechanism includes a motor gearbox connected to a threaded drive shaft that is threadedly engaged with a drive bracket fixed to the drive member and is held in a retaining tube in a non-rotatable but axially movable manner, such that the rotational driving force from the motor gearbox is converted into a translational thrust on the drive member.

[0041] This configuration is the first example of a robust yet reliable drive mechanism for a dispensing device.

[0042] Preferably, the end section of the threaded drive shaft is configured to extend into the rear end section of the drive member or is positioned parallel to the rear end section of the drive member but displaced relative to it.

[0043] The joint configuration is very compact. The side-by-side arrangement is very stable.

[0044] Preferably, the drive member defines an external thread structure that engages with the threaded chuck of the drive mechanism.

[0045] This configuration is a second example of a robust yet reliable drive mechanism for a dispensing device.

[0046] Preferably, the drive member defines an internal thread structure that engages with the threaded spindle of the drive mechanism.

[0047] This configuration is a third example of a robust yet reliable drive mechanism for a dispensing device.

[0048] Preferably, the drive mechanism includes a catch plate drive device that engages with the plunger side section of the drive member.

[0049] This configuration is an example of a simple and reliable drive mechanism on a manually driven structure for a dispensing device.

[0050] Preferably, the drive mechanism includes a nut drive device that engages with the plunger side section of the drive member.

[0051] This configuration is the fourth example of a robust yet reliable drive mechanism for a dispensing device.

[0052] Preferably, the drive mechanism includes a rotary worm gear drive that engages with the middle section of the drive member, particularly the curved section.

[0053] This configuration is the fifth example of a robust yet reliable drive mechanism for a dispensing device.

[0054] Preferably, the dispensing device includes an anti-drip device configured to be operated by the user to release the pressure applied to the plunger by the drive member, and thus the pressure applied to the piston of the barrel, particularly by causing a small reverse movement of the end section of the drive member connected to the plunger.

[0055] With this configuration, unwanted piston movement within the barrel and the resulting leakage can be reliably prevented.

[0056] Preferably, the anti-drip device includes anti-drip fingers and a guide device acting on the drive member to prevent shear force from acting on the plunger when the anti-drip fingers are activated.

[0057] This configuration describes a simple yet reliable implementation of a drip-proof device.

[0058] Preferably, the base structure includes a connecting device for connecting the rear end of the barrel or for securely but releasably retaining the central portion of the barrel. The base structure has a length significantly shorter than the length of the barrel to which it is to be connected.

[0059] Such allocation devices (especially for storage allocation devices) can be configured to be very compact.

[0060] Preferably, the base structure includes a retractable frame configuration configured to hold barrels of varying lengths.

[0061] This configuration allows for the reliable connection of barrels of various lengths to the dispensing device.

[0062] Preferably, the base structure is configured such that the barrel can be fixedly but releasably connected to the base structure.

[0063] In other words, when connected to the barrel and during dispensing operations, the barrel does not move relative to the base structure. However, the barrel can be released from the base structure for replacement with a new barrel.

[0064] Preferably, the base structure is configured such that the 2k barrels (e.g., so-called side-by-side barrels) can be fixedly but releasably connected parallel to each other to the base structure. The dispensing device includes a separate plunger and a separate drive member for each barrel, but only one common drive mechanism. The drive members are driven by a common drive mechanism.

[0065] With this type of dispensing device, material can be dispensed simultaneously from the 2k barrel without the need for a separate dispensing device. The dispensing process for the 2k barrel can be reliably synchronized by using a common drive mechanism for each individual plunger.

[0066] Preferably, the dispensing device includes an adjusting device for changing the lateral distance between the individual components dispensing material from the hopper.

[0067] This configuration depicts the first possibility of reliably connecting 2k barrels with different and / or varying widths to a dispensing device.

[0068] Preferably, the dispensing device includes an adjusting device for changing the orientation between the individual components dispensing material from the barrel.

[0069] This configuration depicts a second possibility for reliably connecting 2k barrels with different and / or varying widths to a dispensing device.

[0070] Preferably, the individual drive spools of the drive mechanism are pivotable relative to each other. The drive spools are connected to each other via direct gear engagement or via two pinions connected to each other via a universal joint.

[0071] This configuration depicts a third possibility for reliably connecting 2k barrels with different and / or varying widths to a dispensing device. Attached Figure Description

[0072] This document describes exemplary configurations and functions of the present disclosure in conjunction with the following accompanying drawings, wherein: Figure 1 A photograph of an exemplary prototype of the dispensing device developed in conjunction with the present invention is shown; Figure 2A A schematic perspective view of the internal configuration of a first exemplary dispensing device is shown; Figure 2B It shows Figure 2A The side view of the configuration; Figure 3 It shows the relationship with Figure 2A and Figure 2B The side view of the dispensing device is similar to that of the dispensing device, but with the addition of a handle configuration; Figure 4A A photograph is shown of an end portion of an exemplary drive component that can be used in the developed dispensing device; Figure 4B It shows Figure 4A A photograph of the middle section of the drive component in a bent state; Figure 5A A schematic diagram showing the configuration of other drive components that can be used in the developed dispensing device is illustrated. Figure 5B It shows that according to Figure 5A A photograph of a first exemplary embodiment of the configuration of the driving component; Figure 5C It shows that according to Figure 5A A photograph of a second exemplary embodiment of the configuration of the driving component; Figure 5D It shows that according to Figure 5A A photograph of a third exemplary embodiment of the configuration of the driving component; Figure 6 A schematic diagram showing the configuration of additional drive components that can be used in the developed dispensing device is shown; Figure 7A A schematic perspective view of a dispensing device having a first exemplary drive mechanism is shown; Figure 7B It shows Figure 7A The side view of the configuration; Figure 8A A schematic perspective view of a dispensing device having a second exemplary drive mechanism is shown; Figure 8B It shows Figure 8A The side view of the configuration; Figure 9A A schematic perspective view of a first exemplary dispensing device configured to be coupled to a 2k barrel is shown; Figure 9B It shows Figure 9A A top view of the configuration; Figure 10 A top view of a second exemplary dispensing device configured to be connected to a 2k barrel is shown; Figure 11 A schematic top view of a third exemplary dispensing device configured to be connected to a 2k barrel is shown; Figure 12A A schematic perspective view of a fourth exemplary dispensing device configured to be coupled to a 2k barrel is shown; Figure 12B It shows Figure 12A The rear view of the configuration; Figure 13A A schematic perspective view of a dispensing device with a longitudinally acting drive mechanism is shown; Figure 13B It shows Figure 13A The side view of the configuration; Figure 14A It shows Figure 13A and Figure 13B The first exemplary implementation of the configuration; Figure 14B It shows Figure 14A The side view of the configuration; Figure 15A It shows Figure 13A and Figure 13B A second exemplary implementation of the configuration; Figure 15B It shows Figure 15A The side view of the configuration; Figure 16A It shows Figure 13A and Figure 13B A third exemplary implementation of the configuration; Figure 16B It shows Figure 16A The side view of the configuration; Figure 17A It shows Figure 13A and Figure 13B The fourth exemplary implementation of the configuration; Figure 17B It shows Figure 17A The side view of the configuration; Figure 18A A schematic perspective view shows a dispensing device with another configuration for the drive mechanism in a first state; Figure 18B It shows a casing and a support. Figure 18A A perspective view of the dispensing device; Figure 18C It shows Figure 18A An enlarged view of the left part; Figure 18D It shows Figure 18C A top view of the configuration; Figure 18E It shows Figures 18A to 18D A schematic perspective view of the dispensing device in its second state; Figure 18F It shows Figure 18E An enlarged view of the left part; Figure 18G It shows Figure 18F A top view of the configuration; Figure 18H The diagram shows... Figure 18D (On the left) and Figure 18G The difference (on the right) between; Figure 19 It schematically shows the relationship with Figures 18A to 18H The dispensing device in the middle has a similar configuration, but is configured to be connected to a 2k barrel; Figure 20 It schematically shows the relationship with Figures 18A to 18H It has a similar configuration to the distribution device in the middle, but with an alternative implementation of a guide device for driving the components; Figure 21A A schematic perspective view of a dispensing device with another drive mechanism configuration is shown; Figure 21B It shows Figure 21A The side view of the configuration; Figure 22A A schematic perspective view of a dispensing device with another drive mechanism configuration is shown; Figure 22B It shows Figure 22A The side view of the configuration; Figure 23 Another exemplary configuration of the drive mechanism for the distribution mechanism is schematically illustrated; Figure 24A A schematic side view of a configuration with an exemplary anti-drip device in a first state is shown; Figure 24B It shows the second state. Figure 24A Configuration; Figure 25AA schematic perspective view of a dispensing device with another drive mechanism configuration in a first state is shown; Figure 25B It shows Figure 25A The side view of the configuration; Figure 25C It shows Figure 25A and Figure 25B The first side view of the dispensing device in the second state; Figure 25D It shows Figure 25C The relative second side view of the configuration; Figure 26A A schematic perspective view of a dispensing device with another drive mechanism configuration is shown; Figure 26B It shows Figure 26A The side view of the configuration; Figure 27A A schematic partial perspective view of a dispensing device having an exemplary connecting device for a barrel is shown; Figure 27B It shows Figure 27A A cross-sectional side view of the configuration; Figure 28A A schematic perspective view of a dispensing device with a retractable frame configuration in a first state is shown. Figure 28B It shows Figure 28A The side view shows the configuration in its first state; Figure 28C It shows Figure 28A A schematic perspective view of the configuration in the second state; Figure 28D It shows Figure 28C The side view of the configuration; Figure 29 The diagram illustrates an undesirable lifting process that may occur under the action of a retraction force acting on the plunger; Figure 30A A schematic perspective view of a dispensing apparatus with a guiding device according to a first exemplary configuration is shown; Figure 30B It shows Figure 30A The side view of the configuration; Figure 31 A schematic perspective view of a dispensing device with a guiding device according to a second exemplary configuration is shown; Figure 32 A schematic perspective view of a dispensing device with a guiding device according to a third exemplary configuration is shown; Figure 33 A schematic perspective view of a dispensing device with a guiding device according to a fourth exemplary configuration is shown; Figure 34A A schematic perspective view of a dispensing device according to another exemplary configuration is shown; Figure 34B It shows Figure 34A The side view of the configuration; and Figure 34C It shows Figure 34A The rear view of the configuration.

[0073] Throughout the various figures, the same reference numerals denote corresponding parts (at least functionally). Detailed Implementation

[0074] like Figure 1 As can be seen in the photograph, an exemplary prototype of a dispensing device 100 developed in conjunction with the present invention is shown. The dispensing device 100 includes: a base structure 48 configured to hold a barrel 1; and a plunger 3 (not visible here; see, for example, see...) Figure 2A and Figure 2B A drive mechanism (using a battery-powered screw drive as a motor) that moves along the base structure 48 through the barrel 1 for dispensing; and a drive member 4 (not visible here; see, for example, see...) configured to transmit driving force from the drive mechanism to the plunger 3. Figure 2A and Figure 2B The drive member 4 is enclosed by a housing 14, which guides the movement of the drive member 4 and forms a central opening 65 (see also...). Figure 3 This allows the user to hold the dispensing device 100 by gripping the opening 65.

[0075] The following text will refer to Figure 2A and Figure 2B describe Figure 1 The internal structure and function of the distribution device 100.

[0076] The dispensing device 100 includes a circular drive spool 5 rotatably coupled to a base structure 48 (not shown). A drive member 4 is configured to be flexible and is at least partially wound around the drive spool 5. A first end of the drive member 4 is securely connected to a plunger 3, and a second end of the drive member 4 is securely connected to the drive spool 5, particularly to a piston 7 fixed to the drive spool 5. The plunger 3 is configured to push a piston 2 of a barrel 1 through the barrel 1 to dispense material from the barrel 1.

[0077] In the illustrated embodiment, the drive spool 5 includes an inner peripheral surface having gear teeth that engage with a pinion 6 for driving the drive spool 5. Alternatively, the gear teeth may also be disposed on the outer peripheral surface or side surface of the drive spool 5, or may be provided with a ratchet or pawl device 37 (hereinafter referred to as such). Figure 26A and Figure 26B(Description) The ratchet teeth are replaced to drive the drive spool 5.

[0078] With this configuration, the rotational movement of the pinion 6 causes the rotational movement of the drive spool 5 (see...). Figure 2B (See the small arrow in the image), which causes the drive member 4 to unwind from the drive reel 5. This unwinding of the drive member 4 generates a translational axial directional force on the plunger 3, causing the plunger 3 to undergo translational distribution movement, and consequently causing the piston 2 to undergo translational distribution movement relative to the base structure 48 through the barrel 1 (see [link]). Figure 2A and Figure 2B (The large arrow in the middle).

[0079] To ensure that the drive member 4 does not slip off the drive reel 5 due to reaction force during the dispensing process, the dispensing device 100 includes a guide groove 71 located on the outer peripheral surface of the drive reel 5, which at least partially accommodates the drive member 4 (see [link]). Figure 2A The boot device is a type of boot device. Other configurations of such boot devices will be discussed below. Figures 29 to 33 Further description.

[0080] The drive component 4 is configured to transmit the driving force of the drive mechanism to the plunger 3, and can have various configurations. These will be discussed below. Figures 4A to 6 Some exemplary configurations are described in the view.

[0081] Typically, the drive member 4 is configured to transmit translational force, while the corner or spool is flexible to form a compact overall configuration.

[0082] To meet these requirements, the drive component 4 can be formed as follows: Figure 4A and Figure 4B The diagram shows a continuous coil of spring steel. The coil is preferably formed from wire with a substantially square cross-section (see Figure 1). Figure 4A (The cut surface). The wire can have a thickness corresponding to the pitch of the formed coil, so that the coil can be formed into a tube with a closed outer surface when longitudinally aligned, such as... Figure 4A As illustrated in the figure. For a compact yet robust configuration, coils with diameters of 10 mm to 25 mm (preferably 13 mm to 22 mm) have been shown; for example, commercially available springs with diameters of 13.5 mm and 22 mm are preferred. With this particular configuration of the drive member 4, the drive member can transmit force longitudinally along the drive member 4, but can also be guided / bent, for example, around the drive reel 5, as... Figure 2A and Figure 2B As shown in the diagram.

[0083] Alternatively, the drive member 4 may be composed of alternating first flexible material component 66 and second rigid material component 67 (see...). Figure 5AThey are interconnected to form a configuration capable of transmitting lateral forces along their length but bending under transverse forces acting upon them. Specifically, the drive member 4 may consist of multiple substantially identical segments connected to each other in a non-releasable manner, such as... Figures 5B to 5D As illustrated in the figure. Each of the segments may include at least one (preferably multiple) spring members serving as flexible members 66, spacers (particularly spacers serving as rigid members 67), and / or joint members for connecting the flexible members 66 and rigid members 67 of the segments and / or different segments to each other.

[0084] According to another exemplary configuration, the drive member 4 may be formed of various rigid components 67, each rigid component 67 being successively connected to a common elongated flexible (particularly bendable) component 66, such as... Figure 6 As shown in the diagram.

[0085] To ensure that such at least partially flexible drive components 4 follow the desired movement path and do not bend under specific reaction forces (such as... Figure 29 As shown in the figure, the distribution device 100 may be equipped with various guiding devices.

[0086] As indicated above, such guiding devices can take the form of a guiding groove 71 along the drive spool 5 to prevent lateral slippage of the flexible drive member 4. To prevent... Figure 29 The radial lifting distribution device 100 shown in the figure may be provided with at least one flip cover 52 (e.g., Figure 30A and Figure 30B (as shown in the diagram), or at least one low-friction plate 53 (such as...) Figure 31 (as shown in the diagram), at least one (especially multiple) low-friction inserts 54 (such as...) Figure 32 (as shown in the diagram), and / or at least one (especially multiple) rollers 55 (as shown in the diagram). Figure 33 (See illustration in the image).

[0087] and Figure 1 Similar to the prototype configuration, the dispensing device 100 can be electrically driven, particularly wireless, to form a handheld device. For this purpose, the drive mechanism 100 can be equipped with a motor gearbox 9, for example... Figures 7A to 8B As shown in the diagram.

[0088] refer to Figure 7A and Figure 7B The motor gearbox 9 can be arranged parallel to the longitudinal axis of the barrel 1 to form a narrower configuration. Alternatively, the longitudinal axis of the motor gearbox 9 can be perpendicular to the longitudinal axis of the barrel 1 to allow for a more direct transmission of the output force from the motor gearbox 9 to the drive reel 5 (see [link to relevant documentation]). Figure 8A and Figure 8B ).

[0089] In order to transmit the output force from the motor gearbox 9 to the drive shaft 5, the motor output gear 8 of the motor gearbox 9 can be directly engaged with the drive shaft 5, such as... Figure 8A and Figure 8B As illustrated in the figure. Alternatively, at least one (preferably multiple) spur gear, compound gear, bevel gear, worm gear, wheel, belt drive, chain, sprocket, and / or friction wheel may be provided to connect the motor output gear 8 of the motor gearbox 9 to the pinion 6 that engages with the drive shaft 5 (see Figure 1). Figure 7A and Figure 7B ).

[0090] like Figure 7A and Figure 7B As further illustrated, the distribution device 100 may be equipped with a battery 10 (particularly assembled into a battery pack) for powering the motor gearbox 9. Alternatively, an energy storage device for powering the motor gearbox 9 can be directly integrated into the motor gearbox 9, for example, as shown in the figure. Figure 8A and Figure 8B As shown in the diagram.

[0091] By way of examples Figure 8A and Figure 8B The energy storage device can also be provided in the form of a battery 10. Such a battery 10 or energy storage device can be arranged parallel to the motor axis on or below the barrel 1, in an arrangement similar to that of a combined... Figure 7A and Figure 7B The distribution device 100 can be arranged in an optional manner.

[0092] The following text will refer to Figures 9A to 12B The description describes various configurations that allow the 2k barrels 1 (especially barrels 1 of different widths) to be connected to each other in parallel in a fixed but releasable manner to the base structure 48 of the dispensing device 100.

[0093] In this configuration, the dispensing device 100 preferably includes a separate plunger 3 and a separate drive member 4 for each barrel 1, but only one common drive mechanism. Each of the drive members 4 is mounted on its own drive spool 5 (forming part of the common drive mechanism). The drive spool 5 is driven by at least one pinion 6 connected to a common motor gearbox 9 (not shown), thereby forming a common drive mechanism for the two drive members 4.

[0094] To allow for lateral positioning variations in the 2k barrel 1, enabling barrels 1 of different widths to be reliably connected to the dispensing device 100, the dispensing device 100 may be equipped with a guiding device, such as the guide wheel 19 of the guide drive member 4 (see [link to dispensing device]). Figures 9A to 10To achieve variable position adjustment of the 2k barrel 1, only one of the two drive components 4 can be equipped with such a guide wheel 19, the latter of which can move in the lateral direction (see...). Figure 9A and Figure 9B (The arrow in the image). For greater flexibility and even greater adjustability, both drive members 4 can be guided by such laterally movable guide wheels 19, as shown in the image. Figure 10 As shown in the diagram. The guide wheel 22 can be replaced or supplemented with the guide sleeve 22.

[0095] Alternatively, the dispensing device 100 may be equipped with adjusting devices for changing the lateral distance between the individual components dispensing material from the 2k cylinder 1, such as... Figure 11 As illustrated in the diagram. Here, the drive member 4 and the corresponding drive spool 5 are laterally movable relative to each other (see arrow). Each of the drive spools 5 engages with its own pinion 6, wherein two pinions 6 are connected, for example, via a common splined drive shaft (not shown) to a common motor gearbox 9 (not shown).

[0096] Alternatively, the dispensing device 100 may be provided with adjusting devices for changing the orientation between the individual components dispensing material from the 2k barrel 1, such as... Figure 12A and Figure 12B As illustrated in the diagram. Here, the two drive spools 5 are tilted at a variable angle relative to each other, but are engaged with each other via direct tooth engagement of a lateral gear ring 68. The variable angle ranges from, for example, 0° to 90°, particularly 60° or only 45°. Therefore, only one of the two drive spools 5 (here, the left one) must be connected to the motor gearbox 9 (not shown) via a pinion 6. Alternatively, each of the drive spools 5 can engage with its own pinion 6, with the two pinions 6 connected to each other via a universal joint (not shown).

[0097] As mentioned above Figure 1 The configuration with drive reel 5 indicated in the view and Figure 13A and Figure 13B The configuration shown in the figure does not have such a drive spool. The drive member 4 can be guided through the housing 14, which defines a curved (partially circular) path for guiding the direction of movement of the drive member 4. The radius of the drive spool 5 can be, for example, in the range of 5 cm to 25 cm, especially in the range of 10 cm to 20 cm (especially 16 cm).

[0098] The following will describe a device that does not have a drive reel 5 and has the following characteristics: Figure 13A and Figure 13B An exemplary embodiment of the drive mechanism of the distribution device 100 for the movement characteristics of the drive member 4 indicated herein.

[0099] For example, such as Figure 14A and Figure 14B As illustrated, the drive mechanism may include a motor gearbox 9 connected to a drive shaft 11, which is threadedly engaged with a drive bracket 12 fixed to the drive member 4. The drive bracket 12 is non-rotatable (particularly by longitudinal guide protrusions engaging corresponding guide grooves) but axially movable within a retaining tube 16. This configuration results in the rotational drive force from the motor gearbox 9 being converted into a translational thrust acting on the drive member 4. This translational thrust is redirected by the shaft housing 14 and then acts on the piston 2 within the barrel 1 via the plunger 3, as shown in the figure. Figure 13A and Figure 13B As indicated by the arrow in the image.

[0100] The threaded drive shaft 11 can be configured such that its end section extends into the rear end section of the drive member 4, such as... Figure 14A and Figure 14B As shown in the diagram, the end segment can be positioned parallel to the rear end segment of the drive member 4 but displaced relative to it, such as... Figure 15A and Figure 15B As shown in the diagram.

[0101] Alternatively, the drive member 4 can be configured to define an external thread structure that engages with the threaded chuck 17 of the drive mechanism, such as... Figure 16A and Figure 16B As shown in the figure. The threaded chuck 17 is axially fixed but rotatably connected to... Figures 14A to 15B The retaining tube 16 (not shown here) is similar to the retaining tube 16, so that the rotational movement of the threaded chuck 17 causes the translational movement of the drive member 4.

[0102] Alternatively, the drive member 4 can be configured to define an internal thread structure that engages with a threaded spindle 18 connected to the motor gearbox 9 (not shown here), for converting the rotational driving force from the motor gearbox 9 into translational driving movement of the drive member 4 (see [link to relevant documentation]). Figure 17A and Figure 17B ).

[0103] In this regard, it is pointed out that the developed dispensing device 100 is similar to a simple cylinder 1 equipped only with a piston 2 (e.g., as shown in the image). Figures 2A to 3 , Figure 7A and Figure 7B (as shown in the diagram) and compatible with the feed cylinder 1 formed by the barrel 15, in which a bag 13 filled with the material to be dispensed and a piston 2 are provided (see Figure 1). Figures 13A to 17B ).

[0104] The following text will refer to Figures 18A to 20 Various configurations of the dispensing device 100 (particularly for the floor dispensing device 100) for a relatively large hopper 1 are described.

[0105] like Figure 18A As seen, this configuration is preferably used with a material cylinder 1 having a barrel 15 that encloses and fills a bag 13 containing the material to be dispensed. Figure 18B An exemplary perspective view of such a dispensing device 100 is shown, which includes a housing 69 and a support 70.

[0106] refer to Figure 18C and Figure 18D The drive member 4 of this type of dispensing device 100 can be mounted on a support member 20 in the form of a rod-shaped roller (particularly through multiple windings). The drive member 4 is guided by a guide device in the form of a guide sleeve 22, which centers the end of the drive member 4 acting on the plunger 3. The illustrated support member 20 is configured to be rotatably fixed on a splined shaft 21 rotatably connected to a motor gearbox 9 but capable of translational movement. Therefore, the motor gearbox 9 can rotate the support member 20 to cause the drive member 4 to perform the unwinding dispensing movement described above.

[0107] The guide sleeve 22 is positioned in a fixed position relative to the cylinder 1 connected to the dispensing device 100, such that when the drive member 4 is rotated and unwound from the support member 20, the support member 20 translates in a direction Y perpendicular to the expected direction of movement of the plunger 3. Figure 18A , Figure 18C and Figure 18D (This shows the dispensing device 100 in its first initial state) and Figures 18E to 18G (This centering movement can be seen when comparing the distribution device in its second final state after performing the distribution operation.) Figure 18H It shows Figure 18D (Top left) and Figure 18G A direct comparison (top right) is used to clearly describe the movement of the support member 20 in the direction Y during the dispensing process, thereby keeping the first end of the drive member 4 connected to the plunger 3 centered.

[0108] refer to Figure 19 The fact that is pointed out is that the second support member 20, having the second drive member 4, is guided by the second guide sleeve 20 to dispense material from the second hopper 1 (or foldable hopper) connected to the dispensing device 100. This second support member 20 can be connected in parallel with the first support member 20 described above to a single splined shaft 21 and thus to a single motor gearbox 9. Therefore, the configuration allows for the simultaneous dispensing of material from the 2k hopper 1 connected to a single dispensing device 100.

[0109] like Figure 20 As shown in the figure, the guide sleeve 20 can be replaced by a pair of guide wheels 19 so that the first end of the drive member 4 is centered.

[0110] Figure 21A and Figure 21B Another configuration for the dispensing device 100 is shown, which has a drive member 4 wound around a reel 39, similar to the one described above. Figure 7A and Figure 7B The described drive reel 5.

[0111] However, the configuration illustrated herein is not electrically driven via a motor gearbox 9 connected to the drive spool 5, but rather manually driven via a latch plate drive mechanism for directly driving the drive member 4. The latch plate drive mechanism includes a trigger 27 pivotally supported on a trigger axis 28 for trigger rotation 29. The trigger 27 is connected via a link 63 to a latch plate 62, which clamps the drive member 4 near the plunger 3. Pull on the trigger 27 causes the indicated trigger rotation 29, thereby generating a thrust on the drive member 4, and thus pushing it via the plunger 3 onto the piston 2 of the barrel 1. Although not shown here, the latch plate drive mechanism may be equipped with a return spring (not shown), acting specifically on the latch plate 62, for resetting the latch plate drive mechanism after the trigger 27 is released. Therefore, material from the barrel 1 can be dispensed via manually “pumping” the trigger 27. During this dispensing operation, the spool 39 is passively rotated to avoid obstructing the unwinding movement of the drive member 4 from the spool 39.

[0112] In its alternative configuration, where the drive member 4 itself, rather than the reel 39, is driven, the drive mechanism may include a nut drive device having a drive nut 60 and a thrust bearing 61, acting directly on the drive member 4 via a threaded engagement to convert the rotational movement of the drive nut 60 and the thrust bearing 61 into the translational movement of the drive member 4. For an electrically driven configuration, the drive nut 60 may engage toothedly with the motor output gear 8 of the electric motor gearbox 9, such as... Figure 22A and Figure 22B As shown in the diagram.

[0113] Instead of the nut drive device connected to the plunger side section of the drive member 4 as described above, the drive mechanism may include a rotary worm drive device having a worm gear 24 rotatably supported on a worm gear shaft 25, such as... Figure 23 As shown in the figure, the worm gear 24 is threadedly engaged with the curved middle section of the drive member 4 to convert the rotational movement of the worm gear 24 into the translational movement of the drive member 4.

[0114] exist Figure 23 The view indicates that, if desired, the drive spool 5 with a central opening 65 described above can be replaced by an idler wheel 23 without the central opening 65 for clamping the dispensing device 100.

[0115] The configuration described above can include a drip-proof device, as described below in relation to... Figure 24A and Figure 24B Exemplary description.

[0116] Here, the anti-drip device is implemented as an anti-drip finger 26, which is configured to be user-operable to release the pressure applied to the piston 2 by the drive member 4 via the plunger 3. In the illustrated embodiment, this release is achieved by a slight reverse movement of the end section of the drive member 4 connected to the plunger 3, the movement being from the dispensing position where the plunger 3 contacts the piston 2 (see [reference]). Figure 24A Move to the release position where plunger 3 no longer contacts piston 2 (see...) Figure 24B Therefore, any residual pressure applied to the piston 2 by the drive mechanism 4 via the plunger 3 will be released. To prevent misalignment of the drive member 4 and / or shear force generated on the plunger 3 during activation (i.e., downward pushing) of the drip-proof finger 26, a guide device in the form of a guide sleeve 22 is provided around the drive member 4, between the drip-proof finger 26 and the plunger 3.

[0117] Figures 25A to 25D Another manually driven configuration is shown. This configuration includes a manually driven gear drive with a trigger 27 pivotally supported on trigger axis 28 (similar to the configuration described above relative to...). Figure 21A and Figure 21B (As described in the configuration). The trigger 27 is provided with a trigger gear 30 that engages with the trigger drive gear 31. The trigger drive gear 31 is connected to a ring gear drive gear 33 via a one-way clutch 35. The ring gear drive gear 33 is disposed on a ring gear drive gear shaft 32 oriented parallel to the trigger axis 28. The ring gear drive gear 33 engages with a ring gear 34 formed along the inner circumference of the drive shaft 5.

[0118] along Figure 25C The rotation of the trigger 29 in the indicated direction causes the drive spool 5 to rotate, thereby driving the drive member 4 to perform the unwinding movement described above. Along Figure 25B During the rotation of the trigger 29 in the opposite direction indicated, the one-way clutch 35 disengages, causing the drive spool 5 to cease rotation. To automatically perform this reset movement when the trigger 27 is released, the trigger 27 can be connected to a reset spring (not shown).

[0119] According to another alternative, the manual drive configuration may include a manually driven ratchet drive mechanism, such as... Figure 26A and Figure 26BThe illustrated example shows a ratchet drive mechanism, including a trigger 27 connected to a trigger pivot 36. The trigger 27 is connected via a drive pawl pivot 42 to a drive pawl 37, which engages with a spool ratchet tooth 38 of a drive spool 5 carrying the drive member 4. In the illustrated embodiment, along... Figure 26A The rotation of the trigger 29 in the direction indicated in the text causes the drive spool 5 to unwind and rotate (clockwise).

[0120] During the reset movement of the trigger 27, in order to prevent the drive spool 5, which is in a state of disengagement from the drive pawl 37 and the spool ratchet tooth 38, from performing undesirable winding rotation (in the counterclockwise direction), a brake pawl 40 supported on the brake pawl pivot P can be provided.

[0121] refer to Figure 27A and Figure 27B The base structure 48 may include a connecting device for securely but releasably connecting the rear end of the barrel 1 to the dispensing device 100. The illustrated connecting device includes a dispenser body 45 with a support boss 43 configured to engage the rear portion of the barrel 1. Furthermore, the connecting device includes a clamping ring 47 compressed between a conical disc 46 and an annular protrusion of the dispenser body 45. A locking collar 44 is threadedly engaged with the dispenser body 45 and configured to push the conical disc 46 onto the clamping ring 47, thereby securing the rear portion of the barrel 1 within the connecting device. Figure 27A and Figure 27B As can be seen, the support structure 48 with such connecting devices can have a length that is significantly shorter than that of the barrel 1.

[0122] Alternatively, the base structure 48 may include a telescopically extendable frame having a dispenser body 45 and two side rods 49, each side rod 49 having a side rod slot 51 that engages with the frame lock 50. With this configuration, barrels 1 of different lengths can be securely held by the base structure 48, such as... Figure 28A and Figure 28B The instructions (and) Figure 28C and Figure 28D (Compared). In order to adjust the base structure 48 to the length of a specific barrel 1, it is moved in the direction Y indicated in Figure 28 to disengage the frame lock 50, and the side rod 49 is moved relative to the dispenser body 45 in the direction X (e.g., Figure 28C (As indicated in the diagram) or push in the opposite direction. Then, the frame lock 50 re-engages with the side bar slot 51.

[0123] Regarding the base structure 48, it should be noted that it is typically configured such that the barrel 1 can be fixedly but releasably connected to the base structure 48. In all the illustrated configurations, the plunger 3 is configured to translate into the barrel 1 connected to the base structure 48 in order to dispense material from the barrel 1. With the developed configuration, it is not possible to achieve movement of the barrel 1 relative to the plunger 3 for dispensing material from the barrel.

[0124] As described above, the dispensing device 100 may be provided with a guide device in the form of at least one flip cover 52 (e.g., Figure 30A and Figure 30B (as shown in the diagram), at least one low-friction plate 53 (as shown in the diagram). Figure 31 (as shown in the diagram), at least one (especially multiple) low-friction inserts 54 (such as...) Figure 32 (as shown in the diagram), and / or at least one (especially multiple) rollers 55 (as shown in the diagram). Figure 33 (as shown in the diagram) to prevent the drive member 4 from being lifted from the drive reel 5 when the reaction force acts on the plunger 3 during the dispensing operation, as shown in the diagram. Figure 29 As shown in the diagram.

[0125] Finally, refer to Figures 34A to 34C This illustrates another configuration of a manually driven dispensing device 100, configured to dispense material from a 2k hopper 1.

[0126] The dispensing device 100 includes two drive members 4, one for each cylinder 1. One of the drive members 4 (here, the left drive member) is positioned around a threaded drive shaft 11, while the other drive member 4 (here, the right drive member) is positioned around a non-threaded guide rod 58. A manually operable drive gear 59 is threadedly engaged with the threaded drive shaft 11 and abuts against a drive plate 57, which has through holes for the threaded drive shaft 11 and the guide rod 58. A guide block 56 is provided to guide the dispensing movement of the two drive members 4.

[0127] In this configuration, the drive gear 59 can be manually rotated to move it upward along the threaded drive shaft 11 (due to the threaded engagement between the two components). This upward movement of the drive gear 59 pushes the drive plate 57 upward along the threaded drive shaft 11 and the guide rod 58 until it contacts the rear end of the drive member 4. As the drive gear 59 rotates further in the same direction, the drive plate 57 causes the two drive members 4 to be pushed upward into the guide block 56, thereby abutting against the plunger 3 acting on the piston 2 for dispensing material from the barrel 1.

[0128] This configuration can also be implemented for only one cylinder 1, that is, without the need to set up the second drive component 4, guide rod 58 and guide plate 57.

[0129] The configuration is suitable for all aspect ratios of the barrel (especially ratios such as 10:1), where small springs can be used to compensate for the free space when using the smaller barrel 1.

[0130] The system can also use two threaded drive shafts 11: either a drive shaft 11 with two mating drive gears 59 and opposing threads, or an idler gear between the two drive gears 59 and the threads of the drive gears 59 having the same direction.

[0131] Alternative guide blocks 56 or adjustable guide blocks may be available, allowing for different angles for the drive member 4. Guide block 56 can be replaced with rollers or low-friction pads, or a combination of both, to achieve the aforementioned adjustability. Rollers and low-friction pads also allow the user to adjust the angle of the drive member according to different applications. List of reference numerals 1. Material cylinder 2 pistons 3. Plunger 4. Driving components 5 Drive Reel 6 small gears 7. Piston 8. Motor output gear 9. Motor Gearbox 10 batteries 11 Drive shaft 12 Drive brackets 13 bags 14 Shaft housing 15 barrels 16 Retaining tube 17 Threaded collet 18 spindles 19 guide wheels 20 Supporting components 21 Splined Switch 22 guide sleeve 23 Idle Gear 24 Worm Gear 25 Worm Gear Shaft 26 anti-drip fingers 27 Trigger 28 Trigger Axis 29. Trigger rotation 30 trigger gear 31. Trigger drives the gear. 32 Gear Ring Drive Gear Shaft 33 Gear ring drive gear 34 Gear Ring 35 One-way clutch 36 Trigger Pivot 37 Drive Pawl 38 spool ratchet teeth 39 scrolls 40 Braking Pad 41 Braking Pad Pivot 42 Drive pawl pivot 43 Support Boss 44 Locking collar 45 Distributor body 46 Conical Disk 47 Clamping ring 48. Base Structure 49 Side bar 50 Frame Locks 51 Side rod groove 52 Flip Cover 53 Low Friction Plate 54 Low-friction inserts 55 Rollers 56 guide blocks 57 Driver Board 58 guide rods 59 Drive gear 60 drive nut 61 Thrust Bearing 62. Snap-on plate 63-link 65 Center opening 66 Flexible material layers / flexible components 67 Rigid material layer / rigid component 68 Gear Ring 69. Outer shell 70 stents 71 Guide groove 100 Dispensing Device

Claims

1. A dispensing device (100) for dispensing viscous and non-viscous materials from a feed cylinder (1), wherein, The dispensing device includes: Base structure (48); A plunger (3) configured to translate relative to the base structure (48); A drive mechanism configured to cause the plunger (3) to perform distributive movement relative to the base structure (48); and A drive member (4) configured to transmit driving force from the drive mechanism to the plunger (3). The drive member (4) is a flexible drive rod that is connected to the drive mechanism in a non-releasable manner, particularly via a piston (7). The driving member (4) is a continuous coil of spring steel, formed of wire having a generally square cross-section and a thickness corresponding to the coil pitch.

2. The dispensing device (100) according to claim 1. in, The drive member (4) has a diameter of 10 mm to 25 mm, preferably 13 mm to 22 mm.

3. A dispensing device (100) for dispensing viscous and non-viscous materials from a feed cylinder (1), wherein, The dispensing device includes: Base structure (48); A plunger (3) configured to translate relative to the base structure (48); A drive mechanism configured to cause the plunger (3) to perform distributive movement relative to the base structure (48); and A drive member (4) configured to transmit driving force from the drive mechanism to the plunger (3). The drive member (4) is a flexible drive rod that is connected to the drive mechanism in a non-releasable manner, particularly via a piston (7). The drive member (4) is formed of a first part of flexible material and a second part of rigid material connected to each other, such that the drive member (4) is configured to transmit lateral force along its length, but bends under the lateral force acting on it.

4. The dispensing device (100) according to claim 3. in, The drive component (4) is formed by multiple substantially identical segments that are non-releasable and interconnected with each other. Each of the segments includes at least one, preferably multiple, spring members, joint members, and / or spacers.

5. The dispensing device (100) according to any one of the preceding claims. in, The dispensing device (100) includes a guiding device having at least one, preferably multiple, of the following components for guiding the dispensing movement of the drive member (4): a flap (52), a low-friction plate (53), a low-friction insert (54), and / or a roller (55).

6. The dispensing device (100) according to any one of the preceding claims. in, The drive member (4) is configured to convert the rotary drive movement from the drive mechanism into the translational distribution movement of the plunger (3).

7. The dispensing device (100) according to any one of the preceding claims. in, The dispensing device (100) is an electrically driven, particularly wireless, handheld device, and the drive mechanism includes a motor gearbox (9).

8. The dispensing device (100) according to any one of the preceding claims. in, When connected to the base structure (48), the longitudinal axis of the motor gearbox (9) is aligned parallel to the longitudinal axis of the barrel (1). The drive mechanism includes at least one, preferably multiple, of the following components: spur gear, compound gear, bevel gear, worm gear, wheel, belt drive, chain, sprocket and / or friction wheel.

9. The dispensing device (100) according to any one of claims 1 to 7. in, When connected to the base structure (48), the longitudinal axis of the motor gearbox (9) is perpendicularly aligned with the longitudinal axis of the barrel (1); The motor output gear (8) of the motor gearbox (9) is directly engaged with the drive shaft (5) to drive the drive component (4).

10. The dispensing device (100) according to any one of the preceding claims. in, The dispensing device (100) includes, in particular, guide elements in the form of guide wheels (19) and / or guide sleeves (22) for guiding the drive member (4) during dispensing movement.

11. The dispensing device (100) according to any one of the preceding claims. in, The drive member (4) is guided through the shaft housing (14), which defines a bending path for changing, in particular reversing, the direction of movement of the drive member (4).

12. The dispensing device (100) according to any one of the preceding claims. The drive mechanism includes a circular drive spool (5) rotatably connected to the base structure (48). in, The drive member (4) is wound at least partially around the drive reel (5), particularly through its rear portion. The dispensing device (100) is configured such that rotational movement of the drive spool (5) causes the drive member (4) to unwind from the drive spool (5), and thus causes a translational axial directional force from the unwound drive member (4) to the plunger (3), thereby causing the plunger (3) to perform a translational dispensing movement relative to the base structure (48).

13. The dispensing device (100) according to claim 12. in, The drive spool (5) includes at least one of an inner peripheral surface, an outer peripheral surface, and a side surface, having gear teeth that engage with the output gears (6, 8) of the drive mechanism for driving the drive spool (5), or The drive spool (5) includes at least one of an inner peripheral surface, an outer peripheral surface, and a side surface, and has ratchet teeth that engage with a ratchet or pawl device of a drive mechanism for driving the drive spool (5).

14. The dispensing device (100) according to any one of claims 12 and 13. in, The drive member (4) is only partially wound around the drive reel (5).

15. The dispensing device (100) according to any one of claims 12 to 14. in, The drive spool (5) includes a guide groove on the outer peripheral surface of the drive spool (5) for guiding the dispensing movement of the drive member (4).

16. The dispensing device (100) according to any one of the preceding claims, further comprising: A housing (14) is configured to at least partially enclose the drive spool (5) and has a central opening (65) that allows a user to hold the dispensing device (100) by gripping the opening.

17. The dispensing device (100) according to any one of the preceding claims. in, The drive mechanism includes a motor gearbox (9) connected to a threaded drive shaft (11), the threaded drive shaft (11) being threadedly engaged with a drive bracket (12) fixed to the drive member (4), and the motor gearbox (9) being non-rotatable but axially movable inside a retaining tube (16), such that the rotational driving force from the motor gearbox (9) is converted into a translational thrust acting on the drive member (4).

18. The dispensing device (100) according to any one of the preceding claims. in, The end section of the threaded drive shaft (11) is configured to extend into the rear end section of the drive member (4) or to be positioned parallel to the rear end section of the drive member (4) but displaced relative to it.

19. The dispensing device (100) according to any one of claims 1 to 11. in, The drive member (4) defines an external thread structure that engages with the threaded chuck (17) of the drive mechanism.

20. The dispensing device (100) according to any one of claims 1 to 11. in, The drive member (4) defines an internal thread structure that engages with the threaded spindle (18) of the drive mechanism.

21. The dispensing device (100) according to any one of claims 1 to 11. in, The drive mechanism includes a locking plate drive device that engages with the plunger side section of the drive member (4).

22. The dispensing device (100) according to any one of claims 1 to 11. in, The drive mechanism includes a nut drive device that engages with the plunger side section of the drive member (4).

23. The dispensing device (100) according to any one of claims 1 to 11. in, The drive mechanism includes a rotary worm gear drive that engages with a particularly curved intermediate section of the drive member (4).

24. The dispensing device (100) according to any one of the preceding claims. in, The dispensing device (100) includes a drip-proof device configured to be operated by the user to release the pressure applied to the plunger (3) by the drive member (4), and thus the pressure applied to the piston (2) of the barrel (1), in particular by causing a small reverse movement of the end section of the drive member (4) connected to the plunger (3).

25. The dispensing device (100) according to claim 24. in, The anti-drip device includes an anti-drip finger (26) and a guide device (22) acting on the drive member (4) to prevent shear force from acting on the plunger (3) when the anti-drip finger (26) is activated.

26. The dispensing device (100) according to any one of the preceding claims. in, The base structure (48) includes a connecting device for connecting the rear end of the barrel (1) or for securely but releasably retaining the central portion of the barrel (1). The base structure (48) has a length that is significantly shorter than that of the barrel (1) to which it is to be connected.

27. The dispensing device (100) according to any one of claims 1 to 25. in, The base structure (48) includes a retractable frame configuration configured to hold barrels (1) of varying lengths.

28. The dispensing device (100) according to any one of the preceding claims. in, The base structure (48) is configured such that the barrel (1) can be fixedly but releasably connected to the base structure (48).

29. The dispensing device (100) according to any one of the preceding claims. in, The base structure (48) is configured such that the 2k barrels (1) can be connected to each other in parallel in a fixed but releasable manner. The dispensing device (100) includes a separate plunger (3) for each barrel (1) and a separate drive member (4), but only one common drive mechanism. The driving component (4) is driven by the common driving mechanism.

30. The dispensing device (100) according to claim 29. in, The dispensing device (100) includes an adjustment device for changing the lateral distance between the individual components dispensing material from the hopper (1).

31. The dispensing device (100) according to claim 29. in, The dispensing device (100) includes an adjustment device for changing the orientation between individual components dispensing material from the barrel (1).

32. The dispensing device (100) according to claim 29. in, The individual drive spools (5) of the drive mechanism are pivotable relative to each other, and The drive spools (5) are connected to each other via direct gear engagement or via two pinions (6), which are connected to each other via a universal joint.

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