EP4440778A1 - System aus werkzeugmaschine und energieversorgungsvorrichtung, sowie energieversorgungsvorrichtung - Google Patents
System aus werkzeugmaschine und energieversorgungsvorrichtung, sowie energieversorgungsvorrichtungInfo
- Publication number
- EP4440778A1 EP4440778A1 EP22817686.3A EP22817686A EP4440778A1 EP 4440778 A1 EP4440778 A1 EP 4440778A1 EP 22817686 A EP22817686 A EP 22817686A EP 4440778 A1 EP4440778 A1 EP 4440778A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- supply device
- energy supply
- locking element
- machine tool
- density
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F1/00—Combination or multi-purpose hand tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/247—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
Definitions
- the present invention relates to a system that includes a machine tool and an energy supply device, wherein the machine tool can be detachably connected to the energy supply device via an interface, and the energy supply device and the machine tool are connection partners of the interface.
- One of the connection partners can have a locking element, while the respective other connection partner has a counter-contour as a stop for the locking element, the locking element and the counter-contour having a base material with a first density.
- the locking element and the counter-contour each have a contact area with contact materials, wherein at least one of the contact materials has a second density that can be higher than the first density of the base material.
- the invention relates to an energy supply device, with machine tools and locking elements also being disclosed in the context of the invention.
- the invention is located in the field of interfaces for rechargeable energy supply devices.
- energy supply devices for machine tools are generally designed in such a way that the energy supply devices can be stored in a charging station for charging. While the energy supply device is being charged, the user can continue to operate the machine tool with a further energy supply device and thus achieve work progress.
- the energy supply device can be connected to the machine tool via an interface if the energy supply device is intended to supply the machine tool with electrical energy during its operation. In this working mode, the energy supply device should be held and fastened securely and stably in the machine tool.
- Various locking mechanisms are known in the prior art for fastening the energy supply device in the machine tool. If the power supply device is to be charged, the power supply device from the machine tool are removed. Means can be provided on the energy supply device or on the machine tool for this purpose, which can release the locking of the energy supply device in order to release the energy supply device (“unlocking”) and to be able to remove it from the machine tool.
- Some of the locking mechanisms known in the prior art require a large amount of space. When actuated, other locking mechanisms release a large opening through which, for example, dust, dirt or moisture can penetrate into the interior of the energy supply device. Still other locking mechanisms known in the prior art have individual elements that do not interact well when locking and unlocking or are made of a material susceptible to wear. This can result in unnecessary wear and abrasion, which wear and abrasion can disadvantageously shorten the life of the interface.
- interfaces and locking mechanisms are known in the prior art, which are made of plastic or represent bending stamped parts, cast parts or die-cast parts. Such interfaces and locking mechanisms are easy to manufacture and inexpensive to produce in large numbers.
- DE 10 2017 217 495 A1 discloses a battery pack for a machine tool, the battery pack having a rigid connecting element, such as a guide rail, which can be made of a material that differs from the housing.
- DE 10 2016 203 431 A1 relates to a battery pack with a cell holder for fastening the battery cells inside the battery pack.
- WO 2019 030 030 A1 describes a rechargeable battery unit with a locking mechanism, wherein the mechanical locking mechanism can be brought into a release state via an unlocking button.
- the object on which the present invention is based is to overcome the deficiencies and disadvantages of the prior art and to provide an interface for connecting an energy supply device to a machine tool that is particularly robust against wear and tear and has a long service life.
- the interface should contribute to the energy supply device being able to be fastened in the machine tool in a functionally reliable, stable and robust manner.
- Further concerns of the invention are to provide a machine tool, an energy supply device and a locking element give, with which a robust and durable connection between the energy supply device and machine tool can be made possible.
- a system comprises a machine tool and an energy supply device, the machine tool being detachably connectable to the energy supply device via an interface, and the energy supply device and the machine tool being connection partners of the interface.
- One of the connection partners of the interface has an element for locking the energy supply device in the machine tool (“locking element”), while the other connection partner has a counter-contour as a stop for the locking element.
- connection or locking of the connection partners of the interface takes place with the aid of the locking element and the counter-contour.
- These elements have contact materials with different densities.
- this preferably means that, in the context of the present invention, the locking area of the interface is reinforced by different materials and is therefore particularly robust.
- the locking element and the counter-contour are not to be confused with guide rails or guide surfaces, because the locking element and the counter-contour are elements that engage with one another when the energy supply device is connected to the machine tool and are designed to correspond to one another, while guide rails or guide surfaces only planar guide elements provide that can facilitate the insertion of the power supply device in a cavity of the machine tool. While guide rails or guide surfaces are designed to be rigid, the locking element of the present invention in particular is designed to be movable. Guide rails or guide surfaces on the one hand and the locking element on the other hand therefore differ in their design (rigid or movable) and in their function (guidance or locking).
- the invention preferably relates to an interface for connecting an energy supply device to a machine tool, wherein in particular the locking area of the interface can be reinforced in the sense that a locking element and/or a counter-contour have a contact material with a higher density than the other counter-part.
- the object of the invention is preferably to strengthen the locking area of the interface between the energy supply device and the machine tool and thus to make it particularly robust and durable. This object is advantageously achieved by the inventive design of the interface or its components "locking element" and "counter-contour", in particular the reinforcement through different materials in the area of the lock contributes to solving the problem.
- the invention relates in particular to a locking element which can be arranged either on the energy supply device or on the machine tool.
- the locking element has a base material with a first density, the locking element also having a first contact area which, in a locking position, is in contact with a second contact area of the other connection partner.
- the locking element can be arranged on the energy supply device.
- the first contact area is also part of the energy supply device, while the second contact area is part of the other connection partner of the interface—here the machine tool.
- the respective other connection partner of the interface in this case the machine tool—has a counter-contour as a stop for the locking element, with the counter-contour having a second contact area.
- the interface has at least one locking element, the locking element being arranged on one of the connection partners of the interface—energy supply device or machine tool.
- the locking element can have a base material with a first density, the locking element having a first contact area which, in a locking position, is in contact with a second contact area of the other connection partner, the first contact material or the second contact material having a second density, which is preferably from differs from the first density of the base material of the locking element.
- connection partner of the interface has a counter-contour as a stop for the locking element, it being possible for the counter-contour to have a second contact area. It is preferred within the meaning of the invention that each connection partner has a locking element and the respective other connection partner has the counter-contour as a stop for the locking element. Both the locking element and the counter-contour each have a contact material, with at least one of the contact materials having a second density that is preferably higher than a first density of the base material of the locking element or counter-contour.
- the contact material with the second density has a particularly good wear resistance, so that by using an interface in which at least one contact partner - locking element or counter-contour - has a contact area with a high density or improved wear resistance, a particularly robust and durable interface can be achieved to be provided.
- the interface with which the machine tool and the energy supply device can be connected and in which at least one of the contact materials of the connection partners has a second density is referred to as a “reinforced interface” within the meaning of the invention.
- the interface meets increased wear and tear requirements that could be placed on the connection between the energy supply device and the machine tool in the future, for example as a result of new battery technologies. Because it is to be expected that new battery technologies will produce power supplies with longer lifetimes. In this case, it is advantageous if the interfaces for connecting an energy supply device to a machine tool can also keep up with these longer lifetimes without having to be replaced before the lifetime of the energy supply device has expired.
- a technical solution for connecting an energy supply device to a machine tool can be provided with the invention, which has both high wear resistance and is able to ensure a high level of security against an undesired loosening of the interface.
- the locking element consists of only one material, for example the base material, so that the locking element has a uniform density throughout.
- the contact area of the locking element has a contact material that does not have a density that differs from the base material.
- the locking element can consist entirely of a material with a first density.
- the locking element preferably has no metal inserts or metal inserts.
- the connection partner of the interface, with which the locking element interacts to establish the connection has a counter-contour with a contact area with a contact material with a second density, the second density preferably being greater than the first density of the locking element.
- both the locking element and the counter-contour, with which the locking element interacts to produce the connection have contact materials with a second density.
- the contact material with the second density is metal or a metal alloy, for example, the connection between the machine tool and the energy supply device is formed by a metal-to-metal interface, which is advantageously particularly durable and wear-resistant.
- at least one contact area of the interface has a contact material with a second density, wherein the contact area with the second density, which preferably differs from the first density, can be present on the machine tool and/or on the energy supply device.
- the contact area with the second density can be formed, for example, by metal inserts or metal inserts, it being preferred within the meaning of the invention that at least one connection partner of the interface - machine tool and/or energy supply device - has a contact area with a contact material with a second density having.
- the locking element has a contact area with a contact material with a second density, it is preferred within the meaning of the invention that the locking element is predominantly made of the base material and to a lesser extent of the contact material.
- the contact material can preferably have or occupy a volume within the locking element, with a proportion of the volume of the contact material in a total volume of the locking element being in a range of less than 20%, preferably less than 10%. It has been shown that with such a configuration of the locking element, a particularly light and handy locking element can be provided, with the locking element nevertheless being extremely robust and wear-resistant.
- the locking element can be arranged on one of the two connection partners of the interface. Within the meaning of the invention, it is particularly preferred that the locking element is arranged on the energy supply device.
- the energy supply device can have a preferably plate-shaped structure on its upper side, which has a power and/or data interface in a front spatial direction, for example, and the interface for connecting the energy supply device to the machine tool in a rear spatial area.
- the spatial directions are shown in FIG.
- the locking element is arranged on the machine tool.
- the connection partner on which the locking element is arranged can preferably be referred to as the “first connection partner”, while the connection partner on which the locking element is not arranged as the “second connection partner”.
- the locking element is preferably arranged on the first connection partner, the locking element having a first contact area which, in a locking position, is in contact with a mating contour with a second contact area of the second connection partner, the first contact area having a first contact material and the second contact region comprises a second contact material, wherein the first contact material or the second contact material has a second density.
- the locking element can preferably be arranged on the energy supply device or on the power tool, with a contact area with a contact material having a second density being present on at least one of the connection partners of the interface.
- the counter-contour can be arranged on the machine tool or on the energy supply device, with at least one of the contact materials having a second density.
- the contact material can preferably be present on contact surfaces of the locking element, the contact surfaces of the locking element being oriented in the direction of the connection partner on which the locking element is not arranged. In other words, the contact surfaces of the locking element are oriented in the direction of the second connection partner or its counter-contour.
- the locking element is arranged on the power supply device, for example, its contact surfaces are preferably oriented in the direction of the power tool, while the contact surfaces are preferably oriented in the direction of the power supply device when the locking element is arranged on the power tool.
- the wording “oriented in one direction” preferably means that, for example, the contact surfaces are oriented towards the other connection partner.
- the contact surfaces can be arranged on a protruding area of the locking element, with this protruding area of the locking element engaging with a preferably corresponding bulge of the second connection partner in the event of locking.
- the locking element is part of the energy supply device, for example, the locking element can engage with a preferably corresponding bulge of the second connection partner, here the machine tool, in the case of locking.
- the bulge can be an example for the counter-contour of the second connection partner.
- the locking element is, for example, part of the machine tool and that the locking element engages with a preferably corresponding bulge or counter-contour of the energy supply device in the case of locking.
- the contact surfaces form a contact area of the locking element, with this contact area of the locking element in particular having a contact material with a second density.
- the locking element can have indentations in its base material that are designed to insert or inserts made of a second material, the contact material.
- those areas of the locking element which come into contact with the second connection partner when the energy supply device is connected to the machine tool are formed from the contact material or comprise this contact material. This is because the contact material can preferably have a higher density and thus advantageously also better wear resistance than the base material, which is also preferably referred to as the first material within the meaning of the invention.
- the second density, ie the density of the contact material is greater than the first density, ie the density of the base material of the locking element.
- those areas of the locking element that come into contact with the second connection partner when the energy supply device is connected to the machine tool preferably include the contact material with the second density, which has a density that differs from the base material and advantageously has high wear resistance.
- the wear resistance and robustness of the entire locking element can be significantly increased, since a wear-resistant material is used in particular in the contact areas that are subjected to particularly high mechanical loads.
- a particularly robust, durable and low-wear interface for connecting the energy supply device to the machine tool can advantageously be provided as a result.
- the contact surfaces are present on the connection partner of the interface on which the locking element is not arranged.
- the contact surface can be present on the connection partner of the interface, which includes the counter-contour as a stop of the locking element.
- This connection partner of the interface can preferably also be referred to as the “opposite connection partner” within the meaning of the invention.
- the contact areas are present on the opposite connection partner and form a contact area, this contact area having a contact material with a second density.
- the opposite connection partner can preferably have indentations which are designed to accommodate inserts or insert parts made of a second material, the contact material.
- those areas of the opposite connection partner that come into contact with the connection partner that has the locking element when the energy supply device is connected to the machine tool are formed from the contact material or include this contact material.
- the contact material can preferably a have higher density and thereby advantageously also better wear resistance than a base material of the opposite connection partner.
- the second density ie the density of the contact material, is greater than the first density.
- the contact surfaces in particular preferably comprise the contact material with the second density, with the contact surfaces of the opposite connection partner or its contact region advantageously having a high wear resistance as a result.
- the wear resistance and robustness of the entire interface can be significantly increased, since a wear-resistant material is used in particular in the contact areas that are subject to particularly high mechanical loads.
- a particularly robust, durable and low-wear interface for connecting the energy supply device to the machine tool can advantageously be provided as a result.
- the second density ie the density of the contact material
- the second density is in a range greater than 3.0 g/cm 3 , preferably greater than 4 g/cm 3 .
- the materials that come into question for the design of the contact area can be metals or metal alloys, for example.
- the contact material, which has a second density has a metal, a metal alloy and/or a metal coating as the contact material.
- inserts or inserts made of metal or a metal alloy can be used as the contact material with a second density and can be inserted into recesses within the base material of the locking element.
- the inserts or inserts made of metal or a metal alloy can be made of sheet metal or include sheet metal, with the term "sheet metal” preferably being understood as "rolled product comprising metal or a metal alloy” in the context of the invention.
- the high density of the contact material preferably leads to the high wear resistance in the contact area of the locking element and thus advantageously to a longer service life of the interface which comprises such a locking element.
- Nickel (Ni) for example, can be used as the metal.
- the contact materials with a second density have a PREN value of greater than 10, with the PREN value preferably being able to be greater than 13 and most preferably greater than 15.
- the abbreviation PREN preferably stands for the Pitting Resistance Equivalent Number is a measure of the corrosion resistance of a material.
- the first density ie the density of the base material, is in a range of less than 3.0 g/cm 3 , preferably less than 2 g/cm 3 .
- the materials that come into question for the base material can be plastics, for example.
- the low density of the base material advantageously means that a particularly light interface can be provided for connecting the energy supply device to the machine tool.
- materials with a density of less than 2 g/cm 3 represent particularly cost-effective solutions for the production of the interface or the locking element.
- sheet metal parts are inserted into an injection mold and overmoulded with a material of lower density.
- the material with the lower density can preferably be the base material of the interface, ie preferably a plastic.
- both the machine tool and the energy supply device comprise a base material, with the base materials of the machine tool and/or the energy supply device being able to differ slightly from one another. It is preferred within the meaning of the invention that minor deviations in the base materials of the connection partners of the interface are not evaluated as materials with different densities.
- the first density ie the density of the base material, can preferably be in a range of less than 3.0 g/cm 3 , preferably less than 2 g/cm 3
- the second density is in a range of greater than 3.0 g /cm 3 , preferably greater than 4 g/cm 3 .
- a surface hardness of the contact material which has a second density, is in a range greater than 90 HV, preferably in a range greater than 100 HV, with the unit “HV” preferably for a hardness test of the Vickers contact material. Tests have shown that contact materials with a Vickers hardness of more than 100 HV can lead to particularly wear-resistant and robust interfaces and locking elements.
- the locking element can have a protruding area, with this protruding area fully or partially in contact with the second connection partner of the interface in the event of locking.
- the protruding area can, for example, be composed of the contact area and other areas, with the other areas being set back areas, for example, which do not come into direct contact with the second contact partner of the interface in the event of locking.
- the protruding area can preferably form an overall contact area, it being preferred for the purposes of the invention that the contact area makes up a proportion in a range of greater than 60%, preferably greater than 70%, of the overall contact area.
- the proportion of the contact area in the total contact area is preferably in a range of greater than 60%, preferably greater than 70%.
- this preferably means that the other areas of the above area make up less than 40%, preferably less than 30 percent, of the above area.
- the contact area is arranged oriented in the direction of the other connection partner. Since the contact material preferably makes up more than 70% of the total contact area of the locking element, the predominant contact between the locking element and the second connection partner takes place predominantly between the contact material with the second density and the other connection partner. Since the contact material with the second density is particularly wear-resistant, a particularly durable interface can be provided in this way in order to connect the energy supply device to the machine tool.
- the contact areas can, for example, have a total contact area in a range from 50 to 100 mm 2
- the contact material has or occupies a volume, with a proportion of the volume of the con- clock material in a total volume of the locking element is in a range of less than 20%, preferably less than 10%. This can provide a particularly lightweight locking element, but an interface with such a locking element is surprisingly robust and durable due to the second density contact material.
- the interface has, in addition to the locking element, an element for actuation by a user, with the locking element and the actuation element forming a locking mechanism.
- the locking element and/or the actuating element can be mounted so as to be rotatable about at least one spatial axis, the spatial or rotational axes running through pivot points of the locking element and/or the actuating element. It is preferred within the meaning of the invention that the pivot point or the axis of rotation of the at least one locking element of the interface precedes a location of the locking in an insertion direction.
- the system has more than one machine tool and more than one energy supply device, with the machine tools and the energy supply device being able to have different combinations of the arrangements of locking element and counter-contour or of the contact materials. It is preferred within the meaning of the invention that two system participants connected to one another within the scope of the invention are designed to correspond to one another in the sense that one connection partner each has a locking element and the other connection partner has the counter-contour for the locking element to rest on. Both the locking elements and the counter-contours can be arranged both on the machine tool and on the energy supply device.
- the at least one contact material with the second density can also be arranged on one of the connection partners of the interface, wherein the at least one contact material with the second density can be arranged both in the area of the locking element and in the area of the counter-contour. It is preferred within the meaning of the invention that in particular the combinations plastic/metal, metal II/plastic, metal/metal occur as contact materials of the contact areas of the machine tool and the energy supply device.
- the system can have a second machine tool and/or a second energy supply device, with the second machine tool and the second energy supply device corresponding to the first machine tool with regard to the presence of a counter-contour and locking element.
- machine and the first energy supply device, the second machine tool having a contact material and the second energy supply device having a contact material, the contact materials of the second machine tool and the second energy supply device each having the other of the two densities compared to the first machine tool and the first energy supply device .
- the system can have either a combination of two power tools and one power supply device, or a combination of two power supply devices and one power tool, or a combination of two power supply devices and two power tools.
- the first machine tool and the first energy supply device have contact materials, of which at least one contact material has a second density.
- One of the two first connection partners ie either the first machine tool or the first energy supply device, has a locking element, with the respective other first connection partner of the system having a counter-contour. If the first machine tool has a counter-contour, it is preferred within the meaning of the invention that the second machine tool also has a counter-contour. In terms of the invention, this relationship can preferably be described by the wording that the second machine tool is designed in accordance with the first machine tool with regard to the presence of a counter-contour and locking element.
- the first machine tool has a locking element
- the second machine tool also has a locking element.
- this relationship can preferably be described by the wording that the second machine tool is designed in accordance with the first machine tool with regard to the presence of a counter-contour and locking element.
- the first energy supply device has a locking element
- the second energy supply device also has a locking element.
- this relationship can preferably be described by the wording that the second energy supply device is designed in accordance with the first energy supply device with regard to the presence of a counter-contour and locking element.
- the first energy supply device has a counter-contour, it is preferred within the meaning of the invention that the second energy supply device also has a counter-contour.
- the second machine tool and the second energy supply device each have a contact material, the contact materials of the second machine tool and the second energy supply device each having the other which of the two have densities.
- this preferably means that the second machine tool or the second energy supply device has a contact material with the second density if a contact material of the first machine tool or the first energy supply device has a first density.
- the second machine tool or the second energy supply device can have a contact material with the first density if a contact material of the first machine tool or the first energy supply device has a second density.
- the machine tools and the energy supply devices of the system are designed to correspond mechanically in the sense that the connection partners to be connected match each other.
- the machine tools either all having a locking element or all having a counter-contour.
- the power supply devices either all have a locking element or all have a counter-contour, with one group of connection partners, for example the machine tools, having the counter-contours, while the other group of connection partners, for example the power supply devices, have the locking elements.
- the term "the two densities" is used in the context of the invention for the first density and the second density of the contact materials, as can be provided on the connection partners of the proposed system.
- the phrase “the other of the two densities” thus stands for the second density if the contact material has a first density in the comparative case.
- the phrase “the other of the two densities” preferably stands for the first density when the contact material has a second density in the comparative case.
- a particularly flexible energy supply platform for machine tools can be provided, in which the energy supply devices can be optimally selected in relation to the electrical and/or mechanical needs and requirements of the machine tool.
- energy supply devices with high constant currents can be used in particular as energy supply devices for supplying energy to the machine tool.
- These power supply devices can be connected via an interface according to the invention to a preferably high-performance machine tool, the interface being characterized by at least one contact area with a contact material having a second density.
- a particularly flexible system or a platform for supplying power to a machine tool can be provided.
- the advantages, technical effects and definitions described for the system apply preferably to the power supply device that will be described below.
- the proposed system is particularly well suited for the transition to new and improved battery technologies.
- a particularly powerful interface for connecting a machine tool and an energy supply device can be provided by using the reinforced interface, with the machine tool preferably being a particularly powerful machine tool, such as a demolition tool, a percussion drill, a chisel or a Core drilling device can act, while the power supply device is preferably a power supply device that is set up to supply constant currents in a range of greater than 50 amperes (A), preferably greater than 70 A, most preferably greater than 100 A to the hand over the machine tool.
- a future-proof machine tool system can therefore be provided with the reinforced interface, since the interface for connecting the energy supply device to the machine tool is particularly robust and durable, so that the high service life requirements of the new battery technologies can be met particularly well.
- a system can be provided with the invention that optimally supports the transmission of the high constant currents, so that the technical advantages of future battery technologies can be used particularly efficiently without the devices being damaged.
- the possibilities that future cell and/or battery technologies bring with them can be used particularly well in this way and made productive for the system.
- the invention relates to an energy supply device for use in the proposed system, wherein the energy supply device can be connected to a machine tool via an interface for the transmission of electrical energy.
- the power supply device has a power supply device contact area with a power supply device contact material, the power supply device contact area being present on a locking element or on a counter-contour, the locking element and the counter-contour having a base material having a first density, wherein the power supply device contact material has a second density.
- the energy supply device can include a locking element with a first contact area, wherein the first contact area includes a first contact material, wherein the first contact material has a second density.
- the locking element comprises a base material with a first density, the first density preferably being less than the second density.
- the locking element can preferably include inserts or inserts made of metal or a metal alloy, with these inserts or inserts preferably having a higher density than the base material of the first density, which can preferably be a plastic.
- the energy supply device has a counter-contour as a stop for the locking element with a second contact area, the second contact area of the counter-contour having a second contact material, the second contact material having a second density.
- the counter-contour also has a base material with a first density, the first density preferably being less than the second density.
- the counter-contour can include inserts or inserts made of metal or a metal alloy, with these inserts or inserts preferably having a higher density than the material of the first density, which can preferably be a plastic. Tests have shown that with the and the provision of a contact material with a second density, a robust, and long-lasting energy supply device can be provided.
- the energy supply device can be used in the proposed system.
- the power supply device is preferably set up to deliver constant currents in a range of greater than 50 amperes (A), preferably greater than 70 A, most preferably greater than 100 A to the machine tool
- the proposed energy supply device can, for example, be based on the new and improved battery technologies and have a service life of at least 600 charging cycles. This preferably corresponds to a capacity throughput of at least 100 Ah/cm 3 (capacity/cell volume) with a simultaneous loss of capacity after 600 charging/discharging cycles of less than 30%. If such a power supply device is used to supply a machine tool with electrical power, the proposed interface can be used to carry out more than the 2,500 plugging or connection cycles that have been customary up to now between the power supply device and the machine tool, without significant wear occurring at the interface. Thus, the invention will meet the future requirements for interfaces resulting from the new and improved battery technology Logologies arise particularly well and it can advantageously be provided particularly robust, powerful and wear-resistant interfaces for connecting an energy supply device with a machine tool.
- the invention is able to ensure both high wear resistance and high security against loosening due to acceleration forces without increasing the operating force when manually loosening the interface.
- Such energy supply devices can preferably have a capacity throughput of at least 100 Ah/cm 3 (capacity/cell volume) with a simultaneous capacity loss of less than 30% after 600 charging/discharging cycles.
- the proposed platform concept also allows the joint use of interfaces with different contact materials and the use of hybrid linear guides. It is thus possible, advantageously without changing the interface of the other connection partner, to use the more expensive hybrid linear guides, particularly in the energy supply devices that have a high service life capacity density.
- power supply devices having lower lifetime capacitance densities may use less expensive interfaces with first density contact materials.
- the more expensive hybrid latches can be used in particular in machine tools that have a high service life requirement, preferably without a significant change in the interface of the other connection partner.
- machine tools that have a lower life requirement may advantageously be equipped with less expensive interfacing with first density contact materials.
- the energy supply device comprises at least one energy storage cell, which is referred to as “cell” within the meaning of the invention.
- the at least one cell has an internal resistance DCR_I of less than 10 milliohms (mOhm).
- the internal resistance DCR_I can be the min at least one cell less than 8 milliohms and preferably less than e milliohms.
- the internal resistance DCR_I is preferably measured according to the IEC61960 standard.
- the internal resistance DCRJ represents in particular the resistance of a cell of the energy supply device, with any components or accessories of the cell making no contribution to the internal resistance DCRJ.
- a low DCRJ internal resistance is an advantage, as this means that unwanted heat that needs to be dissipated does not arise at all.
- the internal resistance DCRJ is a DC resistance that can be measured inside a cell of the proposed power supply device.
- the internal resistance DCRJ can also have intermediate values, such as 6.02 milliohms; 7.49 milliohms; 8.33 milliohms; 8.65 milliohms or 9.5 milliohms.
- a power supply device which has particularly good thermal properties in the sense that it can be operated particularly well at low temperatures, with the cooling effort being surprising can be kept low.
- an energy supply device with a cell internal resistance DCRJ of less than 10 milliohms is particularly well suited to supplying particularly powerful machine tools with electrical energy. Such energy supply devices can thus make a valuable contribution to enabling battery-operated machine tools to be used in areas of application which experts had previously assumed that these areas of application were not accessible to battery-operated machine tools.
- a possibility can be created for supplying a battery or accumulator-operated machine tool with a power supply device according to the invention with a high output power over a long period of time without damaging the surrounding plastic components or the cell chemistry within the cells of the power supply device.
- a ratio of a resistance of the at least one cell to a surface area A of the at least one cell is less than 0.2 milliohms/cm 2 , preferably less than 0.1 milliohms/cm 2 and most preferred less than 0.05 milliohms/cm 2 .
- the surface of the cell can be formed by the outer surface of the cylinder and the top and bottom of the cell.
- a ratio of a resistance of the at least one cell to a volume V of the at least one cell is less than 0.4 milli ohms/cm 3 , preferably less than 0.3 milliohms/cm 3 and most preferably less than 0.2 milliohms/cm 3 .
- the person skilled in the art knows the formulas for calculating the surface area or the volume of such a geometric body for customary geometric shapes such as cuboids, cubes, spheres or the like.
- the term “resistance” preferably designates the internal resistance DCR_I, which can preferably be measured according to the IEC61960 standard. This is preferably a DC resistor.
- the at least one cell has a heating coefficient of less than 1.0 W/(Ah-A), preferably less than 0.75 W/(Ah-A) and particularly preferably less than 0 .5W/(Ah-A).
- the at least one cell can be designed to essentially constantly deliver a current of greater than 1,000 amperes/liter.
- the discharge current is specified in relation to the volume of the at least one cell, with the spatial unit of measurement "liter" (I) being used as the unit for the volume.
- the cells according to the invention are thus capable of delivering a discharge current of essentially constantly greater than 1,000 A per liter of cell volume.
- a cell with a volume of 1 liter is capable of delivering a substantially constant discharge current of greater than 1,000 A, with the at least one cell also having a heating coefficient of less than 1.0 W/(Ah ⁇ A) has.
- the at least one cell of the proposed energy supply device can have a heating coefficient of less than 0.75 W/(Ah-A), preferably less than 0.5 W/(Ah-A).
- the units of the heating coefficient are watts / (ampere-hours • amperes).
- the heating coefficient can also have intermediate values, such as 0.56 W/(Ah-A); 0.723 W/(Ah-A) or 0.925 W/(Ah-A).
- the invention advantageously makes it possible to provide an energy supply device with at least one cell, which has reduced heating and is therefore particularly well suited for supplying machine tools in which high power and high currents, preferably constant currents, are desired for operation.
- an energy supply device for a machine tool can be provided with the invention, in which the heat that may arise during operation of the machine tool and when electrical energy is supplied to the machine tool can be dissipated in a particularly simple and uncomplicated manner. Tests have shown that with the invention not only existing heat can be dissipated better. Rather, the invention prevents heat from being generated or the amount of heat generated during operation of the machine tool can be significantly reduced with the invention.
- an energy supply device can be provided which, above all, also includes such tool machine can be optimally supplied with electrical energy, which places high demands on performance and discharge current.
- the invention can be used to provide an energy supply device for particularly powerful machine tools that are used, for example, to carry out heavy drilling or demolition work on construction sites.
- machine tool is to be understood as a typical piece of equipment that can be used on a construction site, for example a building construction site and/or a civil engineering construction site. It can be, without being limited to, rotary hammers, chisels, core drills, angle grinders or cut-off grinders, cutting devices or the like.
- auxiliary devices such as those occasionally used on construction sites, such as lamps, radios, vacuum cleaners, measuring devices, construction robots, wheelbarrows, transport devices, feed devices or other auxiliary devices can be "machine tools" within the meaning of the invention.
- the machine tool can in particular be a mobile machine tool, in which case the proposed energy supply device can also be used in particular in stationary machine tools, such as column-guided drills or circular saws.
- stationary machine tools such as column-guided drills or circular saws.
- hand-held power tools that are, in particular, rechargeable or battery-operated.
- the at least one cell has a temperature-cooling half-life of less than 12 minutes, preferably less than 10 minutes, particularly preferably less than 8 minutes.
- this preferably means that a temperature of the at least one cell is halved in less than 12, 10 or 8 minutes in the case of free convection.
- the temperature-cooling half-life is preferably determined when the energy supply device is in an idle state, i.e. when the energy supply device is not in operation, i.e. when it is connected to a machine tool.
- energy supply devices with temperature-cooling half-times of less than 8 minutes have proven to be particularly suitable for use in powerful machine tools.
- the temperature-cooling half-time can also have a value of 8.5 minutes, 9 minutes 20 seconds or 11 minutes 47 seconds.
- the heat generated during operation of the machine tool or when it is being charged remains within the at least one cell for only a short time.
- the cell can be recharged particularly quickly and is quickly available for renewed use in the machine tool.
- the thermal load on the component of the energy supply device or the machine tool with the specified proposed power supply device can be significantly reduced.
- the energy supply device can be protected and its service life can be extended.
- the at least one cell is arranged in a battery pack of the energy supply device.
- a number of individual cells can preferably be combined in the battery pack and in this way optimally inserted into the energy supply device.
- 5, 6 or 10 cells can form a battery pack, with integer multiples of these numbers also being possible.
- the energy supply device can have individual cell strings, which can include, for example, 5, 6 or 10 cells.
- An energy supply device with, for example, three strings of five cells can include, for example, 15 individual cells.
- the energy supply device has a capacity of at least 2.2 Ah, preferably at least 2.5 Ah. Tests have shown that the capacitance values mentioned are particularly well suited for the use of high-performance machine tools in the construction industry and correspond particularly well to the local requirements for the availability of electrical energy and the possible service life of the machine tool.
- the at least one cell of the energy supply device is preferably set up to deliver a discharge current of at least 20 A over at least 10 s.
- a cell of the energy supply device can be designed to provide a discharge current of at least 20 A, in particular at least 25 A, over at least 10 s.
- the at least one cell of an energy supply device can be set up to provide a continuous current of at least 20 A, in particular of at least 25 A.
- peak currents in particular brief peak currents
- An energy supply device with powerful cooling as can be achieved by the measures described here, is therefore particularly advantageous.
- the at least one cell of the energy supply device can provide at least 50 A over 1 second.
- the at least one cell of the energy supply device is set up to provide a discharge current of at least 50 A over at least 1 s.
- Machine tools can often require high performance for a short period of time.
- a power supply device, the cells of which are capable of such peak current and/or such Delivering continuous current can therefore be particularly suitable for powerful machine tools such as those used on construction sites.
- the at least one cell comprises an electrolyte, the electrolyte preferably being in a liquid state at room temperature.
- the electrolyte may include, but is not limited to, lithium, sodium, and/or magnesium.
- the electrolyte can be lithium-based. Alternatively or additionally, it can also be sodium-based.
- the accumulator is magnesium-based.
- the electrolyte-based energy supply device can have a nominal voltage of at least 10 V, preferably at least 18 V, in particular at least 28 V, for example 36 V. A nominal voltage in a range from 18 to 22 V, in particular in a range from 21 to 22 V, is very particularly preferred.
- the at least one cell of the energy supply device can have a voltage of 3.6 V, for example, without being limited to this.
- the energy supply device is charged, for example, at a charging rate of 1.5 C, preferably 2 C and most preferably 3 C.
- a charging rate xC can be understood as the current intensity that is required to fully charge a discharged energy supply device in a fraction of an hour that corresponds to the numerical value x of the charging rate xC.
- a charging rate of 3 C enables the battery to be fully charged within 20 minutes.
- the at least cell of the energy supply device has a surface area A and a volume V, with a ratio A/V of surface area to volume being greater than six times, preferably eight times and particularly preferably ten times the reciprocal of the third root of volume.
- the formulation that the surface area A of the at least one cell is greater than, for example, eight times the cube root of the square of the volume V can preferably also be expressed by the formula 4>8*V A (2/3). In another notation, this relationship can be described by the fact that the ratio A/V of surface area to volume is greater than eight times the reciprocal value of the cube root of the volume.
- values in the same basic unit must always be used. For example, if a value for the surface area in m 2 is substituted into the above formula, then a value in units for the volume is preferably substituted in m 3 . For example, if a value for surface area in units of cm 2 is substituted into the above formula, a value in the unit cm 3 is preferably used for the volume. For example, if a value for surface area in units of mm 2 is substituted into the above formula, a value for volume is preferably substituted in units of mm 3 .
- Cell geometries which, for example, meet the relation of >8*V A (2/3) advantageously have a particularly favorable ratio between the outer surface of the cell, which is decisive for the cooling effect, and the cell volume.
- the inventors have recognized that the ratio of surface area to volume of the at least one cell of the energy supply device has an important influence on the heat dissipation of the energy supply device.
- the improved cooling capability of the proposed energy supply device can advantageously be achieved by increasing the cell surface area with the same volume and low internal resistance of the at least one cell. It is preferred within the meaning of the invention that a low cell temperature with a simultaneously high power output can preferably be made possible when the internal resistance of the cell is reduced. Reducing the internal resistance of the at least one cell can result in less heat being generated.
- a low cell temperature can be achieved by using cells in which the surface area A of at least one cell within the energy supply device is greater than six times, preferably eight times and more preferably ten times the third root of the square of the volume V of the at least one cell . In this way, in particular, the heat dissipation to the environment can be improved.
- energy supply devices whose cells fulfill the stated relationship can be cooled significantly better than previously known energy supply devices with, for example, cylindrical cells.
- the above relationship can be fulfilled, for example, in that the cells of the proposed energy supply device have a cylindrical basic shape, but additional surface-enlarging elements are arranged on their surface. This can be, for example, ribs, teeth or the like.
- the cells of the proposed energy supply device can have an essentially cuboid or cubic basic shape.
- the at least one cell has a cell nucleus, with no point within the cell nucleus being more than 5 mm away from a surface of the energy supply device.
- the energy supply device When the energy supply device is discharged, for example when it is connected to a machine tool and the machine tool is used, heat can be generated in the cell nucleus. In this specific embodiment of the invention, this heat can be transported over a relatively short distance to the surface of the cell of the energy supply device.
- the heat can be optimally dissipated from the surface.
- Such an energy supply device can therefore have good cooling, in particular comparatively good self-cooling.
- the time it takes for the limit temperature to be reached can be lengthened and/or the limit temperature can advantageously be completely avoided.
- a relatively homogeneous temperature distribution can be achieved within the cell nucleus. This can result in a uniform aging of the accumulator. This in turn can increase the lifetime of the power supply device.
- the at least one cell has a maximum constant current output of greater than 20 amperes, preferably greater than 30 amperes, most preferably greater than 40 amperes.
- the maximum constant current output is the amount of current that can be drawn from a cell or power supply device without the cell or power supply device reaching a temperature ceiling. Potential upper temperature limits may range from 60°C or 70°C, but are not limited thereto.
- the unit of the maximum constant current output is the ampere.
- the energy supply device has a discharge C rate of greater than 80 • t A ( ⁇ 0.45), the letter “t” standing for the time in seconds.
- the C rate advantageously enables the charging and discharging currents for energy supply devices to be quantified, the discharge C rate used here in particular enabling the quantification of the discharging currents from energy supply devices.
- the C rate can be used to specify the maximum allowable charge and discharge currents.
- These charging and discharging currents depend primarily on the nominal capacity of the energy supply device.
- the unusually high discharge C rate of 80 • t A (-0.45) advantageously means that particularly high discharge currents can be achieved with the proposed energy supply device, which are required for the operation of powerful machine tools in the construction industry.
- the discharge currents can be in a range of greater than 40 amperes, preferably greater than 60 amperes, or even more preferably greater than 80 amperes.
- the cell has a cell temperature gradient of less than 10 Kelvin.
- the cell temperature gradient is preferably a measure of temperature differences within the at least one cell of the proposed energy supply device, it being preferred in the context of the invention that the cell has a temperature distribution that is as uniform as possible, i.e. that a temperature in an inner region of the cell deviates as little as possible from one Temperature measured in the area of a shell or outer surface of the cell.
- an energy supply device with the properties mentioned represents a high-performance energy supply device, such as is referred to in the context of the present invention as an energy supply device of the first type.
- Such energy supply devices are preferably set up to supply particularly powerful machine tools with electrical energy.
- the energy supply devices with the features mentioned preferably represent energy supply devices which can be regarded as representatives of future cell technologies.
- the locking element is part of the energy supply device.
- the energy supply device can comprise at least one element for locking (“locking element”) the energy supply device in the machine tool, wherein the at least one locking element is mounted rotatably about at least one spatial axis, the spatial axis running through a pivot point of the at least one locking element, wherein the pivot point of the at least one locking element precedes a location of the locking in an insertion direction.
- this preferably means that the pivot point of the locking element is arranged in front of a location of the locking in an insertion direction.
- a locking location can be defined, at which the energy supply device is locked within the machine tool, with this location being defined, for example, by an undercut or an indentation can be.
- the undercut or the indentation can accommodate the locking element when the locking element is rotated to lock the energy supply device and therefore changes its position.
- a distance A is defined, which indicates the distance between the location of the locking and the pivot point of the locking element. The distance A is shown in the figures.
- the proposed locking mechanism is advantageously based on a rotary mounting of the elements involved, so that an ergonomically unfavorable linear movement of the elements involved can advantageously be dispensed with.
- a particularly space-saving locking mechanism can be provided for an energy supply device.
- the proposed locking mechanism there is advantageously no opening on an outer wall during unlocking or locking, through which dust, dirt or moisture can penetrate into an interior space of the energy supply device. This effectively protects the energy supply device from external influences.
- the proposed energy supply device is able to absorb high locking forces due to high accelerations.
- good handling of the energy supply device can also be ensured under construction site conditions.
- the proposed energy supply device is designed to be robust, durable and compact.
- the advanced pivot point of the locking element has the additional advantage that pivoted components are more robust, less sensitive to dust, less play and easier to move under construction site conditions.
- the pivot point of the rotatably mounted locking element is arranged in front of the locking location in the insertion direction, since the locking element and the support of the locking element are subjected to pressure. It is preferred within the meaning of the invention that the insertion direction corresponds to a relative movement of the energy supply device and the machine tool when inserting and removing the energy supply device.
- the energy supply device can be inserted into a cavity of the machine tool, for example. It can also be preferred within the meaning of the invention that the energy supply device is attached to an underside or a side wall of the machine tool. If the Machine tool has a cavity for receiving the energy supply device, this cavity is preferably cuboid, with one side of the cavity is open as a rule. This open side of the cavity can preferably be referred to as "the back of the cavity".
- the preferably shaft-like cavity can have a top, a bottom, a front and two side walls. In this case, the top and bottom sides, the two side walls and the front side and the open side of the cavity are preferably on opposite sides of the cavity, ie the sides mentioned are in each case opposite one another.
- the open side of the cavity preferably represents the insertion opening for the energy supply device.
- an insertion direction can be defined that corresponds to the direction in which the energy supply device is inserted into the machine tool. This means that the insertion direction extends, starting from the insertion opening, in the direction of the front side of the preferably shaft-like cavity of the machine tool.
- This direction of insertion preferably coincides with a first axis of a virtual coordinate system used to describe the invention (cf. figures).
- a second axis of the virtual coordinate system extends between an underside and an upper side of the cavity for accommodating the energy supply device, while a third axis of the virtual coordinate system extends between the side surfaces of the accommodating shaft for the energy supply device.
- the axes of the virtual coordinate system are preferably perpendicular to each other, with the first axis corresponding to the x-axis of a known coordinate system (forward and back), the second axis to the y-axis (up and down) and the third axis to the z-axis (off out of the picture plane and back in again).
- the front of the cavity of the machine tool in the direction of insertion represents a front area of the power supply device, because the front of the cavity is virtually the target of the insertion movement.
- the open side of the cavity represents a rear side of the cavity.
- the side walls and side surfaces of the energy supply device are designed to correspond to the walls of the cavity of the machine tool.
- the corresponding design of the side walls and side surfaces of the energy supply device on the one hand and the walls of the cavity of the machine tool on the other hand means in the context of the invention that the Walls each have essentially flat surfaces, so that the power supply device can be inserted particularly easily and safely into the cavity of the machine tool.
- the side walls and side faces of the energy supply device and the walls of the cavity of the machine tool do not have any protruding areas or elements that could present an obstacle when the energy supply device is pushed into the machine tool.
- the energy supply device preferably has a cuboid basic shape, with the energy supply device having in particular an upper side and an underside, a front side and a rear side, and two side surfaces. While the side surfaces of the energy supply device can be configured essentially the same or similar, the surface of the energy supply device has an interface for attaching the energy supply device to the machine tool, which differs from the essentially planar underside of the energy supply device. Such an interface is not present on the underside of the energy supply device, so that the upper side and the underside of the energy supply device are essentially not of the same or similar design.
- the side with which the energy supply device is introduced into the cavity of the machine tool is preferably the front side of the energy supply device, while the rear side of the energy supply device is in the inserted state in the area of the open side of the cavity.
- this rear side of the energy supply device can form the rear side or rear wall of the machine tool in whole or in part in the connected state.
- the rear side of the power supply device can also form a rear wall of a main body of a machine tool.
- the purposes of the invention refer to the state in which the energy supply device is attached to the machine tool and in which the energy supply device supplies the machine tool with electrical energy as “inserted” or “pushed in” state.
- the inserted or pushed-in state can also be referred to as the "working mode” or “operating state” of the system of energy supply device and machine tool, since the machine tool is enabled by the supply of electrical energy to perform work or to be operated.
- the state in which the energy supply device and the machine tool are separate from one another is referred to as a "disconnected” or “separate” state within the meaning of the invention.
- generation device can be connected to a charger, for example, in order to be charged.
- the energy supply device On its upper side in the front area, can have those elements and components that allow electrical energy to be transmitted from the energy supply device to the machine tool.
- means for data exchange between the energy supply device and the machine tool can be provided.
- These can preferably be power and/or data contacts, which can be spring-loaded, for example. The springing can be arranged, for example, in the area of the energy supply device and/or in the area of the machine tool. After the energy supply device has been pushed in, the power and/or data contacts come into operative connection with corresponding contacts of the machine tool, so that a current flow and/or data exchange can be ensured.
- the energy supply device In its rear area, the energy supply device has on its surface the interface with the proposed locking mechanism with the at least one contact area with the contact material with the second density.
- the location at which the energy supply device is locked, i.e. fastened, to the machine tool is preferably in this rear region of the energy supply device.
- the locking mechanism In order to bring about the locking, the locking mechanism has at least one locking element which is mounted so as to be rotatable about an axis of rotation or rotation.
- the axis of rotation preferably runs in the third spatial direction or essentially parallel to the third axis of the virtual coordinate system that is used to describe the invention.
- the pivot point is preferably that point within the interface of the energy supply device through which the axis of rotation of the locking element runs.
- the fulcrum of the locking member is positioned ahead in an insertion direction with respect to a location of locking.
- the wording according to which the pivot point of the at least one locking element is arranged in front of a locking location in an insertion direction preferably means in the context of the invention that the pivot point of the locking element is not arranged within the interface of the energy supply device, for example below the locking mechanism, but at a distance A offset «forwards» in the spatial direction.
- the distance between the power and/or data interface in the front area of the energy supply device and the pivot point is smaller than the distance between the power and/or data interface in the front area of the energy supply device and the locking mechanism in the rear area of the energy supply device.
- the pivot point of the at least one locking element is closer to the power and/or data interface in the front area of the energy supply device than the locking mechanism of the energy supply device.
- the pivot point of the locking element of the power supply device is offset toward a center or a central region of the power supply device, with the locking mechanism as a whole having a smaller distance to the back of the power supply device than the pivot point of the locking element of the power supply device.
- the second connection partner of the proposed interface which does not have the locking element, can have an undercut.
- the undercut represents an indentation, the indentation being set up to receive the locking element of the interface.
- the undercuts and indentations can preferably be referred to as "counter-contour of the opposite connection partner".
- the interface can also have a prestressing element, with the indentation representing a receiving space for the locking element when the locking element is pressed into the indentation by prestressing of the prestressing element. In other words, it is preferred within the meaning of the invention that the pretensioning element is set up to hold the locking element in the locking position.
- the pretensioning element can press the locking element into the indentation.
- the prestressing element is released by actuating the actuating element, so that the locking element or its protruding area can slide out of the indentation. This sliding out occurs due to the rotary movement of the locking element, of which the locking element is capable.
- the other or second connection partner can preferably be the machine tool, with the locking element being part of the energy supply device.
- the locking element has a protruding area on a side opposite the pivot point, which can engage with the indentation of the second connection partner or can be received by it.
- the receiving of the protruding area of the locking element in the indentation preferably takes place in the locking position, the first connection partner, on which the locking element is arranged, being engaged by the locking elements is fixed or locked there with the indentation of the second connection partner.
- the energy supply device has a center of gravity which is preferably arranged essentially centrally or in the middle within the energy supply device.
- the center of gravity of the energy supply device can be determined to a good approximation by determining the point of intersection of the diagonals of the energy supply device.
- a further advantageous embodiment of the invention according to which the interface has a locking element and an actuating element, the at least one locking element being mounted such that it can rotate about at least one spatial axis, the spatial axis running through a pivot point of the at least one locking element, the pivot point of the at least one locking element in an insertion direction precedes a location of the locking, results from the fact that a self-reinforcing effect is achieved by the position of the pivot point of the locking element, which can advantageously reinforce the locking effect of the locking element.
- the energy supply device also comprises an actuating element in addition to the locking element, the at least one actuating element being mounted rotatably about at least one spatial axis, the spatial axis running through a pivot point of the actuating element. It is preferred within the meaning of the invention that the energy supply device or its interface has at least one element for actuation ("actuating element") by a user, with the at least one actuating element being mounted rotatably about at least one spatial axis and the spatial axis passing through a pivot point of the actuating element runs.
- actuating element element for actuation
- the spatial axis around which the axis of rotation of the actuating element can be rotatably mounted is preferably the same spatial axis around which the locking element of the locking mechanism is also rotatably mounted.
- the axis of rotation of the locking element and the axis of rotation of the actuating element are preferably essentially parallel to the third axis of the virtual coordinate system, with the aid of which the invention is described. But it can also be one another direction in space, such as the first or the second axis of the virtual coordinate system. It is preferred within the meaning of the invention that the spatial axes about which the at least one locking element and the at least one actuating element are rotatably mounted are essentially identical.
- the proposed locking mechanism is advantageously based on a rotary mounting of the locking element and the actuating element, so that an ergonomically unfavorable linear movement of the elements can advantageously be dispensed with.
- the inventors have recognized that a two-part interface lock with a rotatably mounted actuating element and a rotatably mounted locking element, as well as suitably placed pivot points, makes it possible to provide a particularly robust locking mechanism that is suitable for construction sites. This advantage is brought about in particular by the self-reinforcing interaction of the actuating element and the locking element.
- the energy supply device can be connected to the machine tool in a functionally reliable, particularly backlash-free and robust manner in a working mode.
- the proposed locking mechanism is preferably designed in such a way that it can be moved or adjusted between a locking position and an unlocking position.
- the actuating element and the locking element can assume a locking position or an unlocking position, with an undercut or an undercut blocking a last remaining degree of freedom of movement of the energy supply device in the locking position.
- the proposed interface can absorb surprisingly large forces without damaging the locking mechanism. This is particularly advantageous if the energy supply device is used in machine tools which are operated with strong vibrations. In addition, large forces can occur when falling or when the energy supply device falls. In addition, it has been shown that the actuating element is particularly easily accessible and can be pressed down by a user with his thumb in an ergonomically favorable manner. Furthermore, the operating forces of the proposed locking mechanism can be kept surprisingly low.
- the at least one locking element has a bulge and the at least one actuating element has a protruding area, wherein the at least one locking element is designed to at least one actuating element to be accommodated at least partially in an unlocking position (cf. FIG. 3). In this unlocked position, the energy supply device can be removed from the machine tool.
- the interface can preferably have a pretensioning element, the pretensioning element being set up to generate a pretension with which the locking element can be snapped into an indentation or an undercut of the second connection partner when locking the energy supply device (cf. Fig. 2: locking position ).
- Fig. 1 View of a preferred embodiment of the locking mechanism
- Fig. 2 Detailed view of the locking element and the actuating element
- FIG. 3 Detailed view of the locking element and the actuating element (unlocking position)
- FIG. 6 shows a schematic side view of a preferred embodiment of the energy supply device
- FIG. 7 View of a preferred embodiment of the system
- FIG. 1 shows a view of a preferred embodiment of the locking mechanism of an energy supply device 1.
- FIGS. it can also be arranged on the machine tool 2 .
- 1 shows in particular a locking element 3 , an actuating element 8 and a pretensioning element 13 .
- a rotation axis 4 which forms the center of rotation of the locking element 3 , runs through the pivot point 5 of the locking element 3 .
- the actuating element 8 has a pivot point 10 , the actuating element 8 being rotatably mounted about the pivot point 10 .
- An axis of rotation 9 which forms the center of rotation of the actuating element 8 , runs through the pivot point 10 of the actuating element 8 .
- the location 7 at which the locking element 3 and the actuating element 8 engage in one another to form a lock is referred to as “lock location 7” within the meaning of the invention.
- the energy supply device 1 is set up to supply a machine tool 2 (see FIG. 4) with electrical energy.
- the energy supply device 1 can be inserted into a cavity of the machine tool 2 .
- the energy supply device 1 is inserted into the machine tool 2 along an insertion direction 6 which preferably coincides with a first axis I of a virtual coordinate system used to describe the invention.
- the virtual coordinate system also includes a second axis II and a third axis III.
- the axis of rotation 4 of the locking element 3 and the axis of rotation 9 of the actuating element 8 run essentially parallel to the third axis III of the virtual coordinate system.
- the pivot point 5 of the spatial axis 4 of the locking element 3 precedes the location 7 of the locking in the insertion direction 6 .
- this preferably means that a distance A can be defined between the locking location 7 and the pivot point 5 of the spatial axis 4 of the locking element 3.
- This distance A is identified in FIG. 1 by an arrow with two arrowheads.
- the energy supply device 1 In order to connect the energy supply device 1 to the machine tool 2, the energy supply device 1 has an interface 14, which preferably represents a mechanical interface.
- the interface 14 shown in Fig. 1 is on a top of the Energy supply device 1 before.
- the energy supply device 1 In a front area 18 of the energy supply device 1, the energy supply device 1 has a data and/or power interface 16, which can be used to exchange data between the energy supply device 1 and the machine tool 2 in the connected state or to transfer electrical energy from the energy supply device 1 to Transfer direction of the machine tool 2.
- the energy supply device 1 has the locking mechanism with locking element 3 and actuating element 8 in a rear area 17 .
- the power supply device 1 may include a battery pack 21 that forms the lower portion of the power supply device 1 .
- the locking element 3 can have a base material 15 with a first density, the locking element 3 having a first contact area 20 which, in a locking position, is in contact with a second contact area 19 of the other connection partner
- first contact region 20 having a first contact material 23 and the second contact region 19 having a second contact material 25, with at least one of the contact materials 23, 25 having a second density.
- FIG. 2 shows a detailed view of the locking element 3 and the actuating element 8. In particular, a locking position of the locking mechanism is shown in FIG.
- the locking element 3 shown in FIG. 2 has a first contact area 20 , the first contact area 20 comprising a first contact material 23 .
- the contact material 23 can have a different, preferably greater, density than a base material 15 of the locking element 3.
- a particularly durable and robust interface 14 be provided for connecting an energy supply device 1 and a machine tool 2 .
- a contact area with a contact material with a second density can also have on an opposite connection partner of the interface 14 which does not have the locking element 3 .
- the locking element 3 can have a bulge 11 which, in the case of unlocking (FIG. 3), can interact with a protruding area 12 of the actuating element 8 or engage with one another.
- Elements 3, 8 interlock at location 7 of locking.
- the locking element 3 is present on the energy supply device 1 , the locking element 3 having a first contact region 20 with a first contact material 23 .
- a second contact region 19 is arranged on the machine tool 2 and has a second contact material 25, with at least one of the contact materials 23, 25 having a second density which is preferably greater than a first density of the base material 15.
- both the energy supply device 1 , As well as the machine tool 2 include a base material 15, which can be a plastic, for example.
- the machine tool 2 can include a tool, operating elements and/or handles in the usual way.
- the machine tool 2 can in particular also have a motor (not shown).
- the machine tool 2 can be connected to a power supply device 1 (“connected state”) to enable the power supply device 1 to supply the machine tool 2 with electrical power.
- the energy supply device 1 can have an interface 14 which can interact with a machine tool 2 .
- the energy supply device 1 has a data and/or power interface 16 on its upper side.
- the data and/or power interface 16 can be arranged in a front area 18 of the energy supply device 1 , while the locking mechanism is arranged in a rear area 17 of the energy supply device 1 .
- the machine tool 2 can have an undercut 26, wherein the locking element 3 of the energy supply device 1 can be accommodated in a locking position by the undercut 26 of the machine tool 2.
- the locking element 3 of the energy supply device 1 can rotate about its pivot point 5 and thus switch between a locking position and an unlocking position.
- the locking mechanism may include a biasing element 13, wherein the biasing element 13 is adapted to the locking element 3 of the energy supply device 1 in the undercut 26 of Press machine tool 2.
- the tip of the locking element 3 moves out of the undercut 26 of the machine tool 2 in a spatial direction U downwards.
- the tip of the locking element 3 is preferably that area of the locking element 3 which is opposite the pivot point 5 of the locking element 3 .
- the locking element 3 of the energy supply device 1 has a tip and a fulcrum 5 , the tip and the fulcrum 5 being arranged on opposite sides of the locking element 3 .
- the pivot point 5 of the locking element 3 precedes the locking location 7 in the insertion direction 6 .
- Fig. 5 shows a possible embodiment of the proposed locking element 3, which can be designed, for example, as a so-called.
- the locking element 3 shown in FIG. 5 can be arranged on the energy supply device 1 , for example.
- the wording "hybrid” preferably refers to the fact that the locking element 3 can comprise at least two materials 15, 23, with a larger proportion of the locking element 3 being formed by a base material 15 and a smaller proportion of the locking element 3 being formed by a first contact material 23
- the first contact material 23 can be accommodated in recesses in the base material 15 of the locking element 3, for example in the form of inserts or insert parts.
- the first contact material 23 of the locking element 3 is preferably present in its contact area 20, wherein the contact area 20 of the locking element 3 in a locking position (cf. FIG. 2) can be in contact with a second contact area 19 of the other connection partner of the interface 14.
- the second contact region 19 of the other connection partner can have a second contact material 25, with at least one of the contact materials 23, 25 having a second density.
- the locking element 3 is usually part of the energy supply device 1 (“first connection partner of the interface 14”), while the machine tool 2 forms the second connection partner of the interface 14.
- the locking element 3, which is shown in FIG. 5, has two individual contact areas 20, which are each formed by an insert or insert.
- the inserts or inserts can include the first contact material 23 .
- the protruding area of the locking element 3 forms an overall contact area 24 which is formed entirely or partially by the contact areas 20 .
- the two contact areas 20 do not completely fill the overall contact area 24, rather smaller areas remain in the edge area of the overall contact area 24 or between the contact areas 20, which are not covered with contact material 23.
- the contact area 20 makes up a proportion of greater than 60%, preferably greater than 70%, of the total contact area 24 of the locking element 3 .
- the overall contact area 24 is surrounded by a gray line in FIG. 5 or its position is indicated by the gray line.
- the locking element 3 can be mounted around a pivot point 5 .
- the locking element 3 can rotate about its pivot point 5 and thus move from a locking position to an unlocking position, or vice versa.
- FIG. 6 shows a schematic side view of a preferred embodiment of the energy supply device 1.
- the energy supply device 1 illustrated in FIG. In particular, the cells 33 are symbolized by the circles, while the strands are symbolized by the elongated rectangles surrounding the circles ("cells 33").
- FIG. 7 shows a view of a preferred embodiment of the system 100.
- An energy supply device 1 is shown, which can be introduced into a machine tool 2 in order to supply the machine tool 2 with electrical energy.
- the energy supply device 1 can be inserted, for example, into a cavity in the machine tool 2 or into a receiving slot in the machine tool 2, as shown in FIG.
- the energy supply device 1 can comprise a battery pack 21, in which energy storage cells 33 (see FIG. 6) can be contained.
- the partial area of the interface 14 that belongs to the energy supply device 1 can be arranged in the upper area of the energy supply device 1 .
- the portion of the interface 14 that belongs to the energy supply device 1 can include the first contact area 20 , which in turn includes the first contact material 23 .
- the portion of the interface 14 that belongs to the energy supply device 1 can include guide surfaces 126, with the guide surfaces 126 being able to be formed or oriented both horizontally and vertically.
- the interface 14 preferably includes a linear guide, which can make it much easier to insert the energy supply device 1 into the machine tool 2 .
- the machine tool 2 preferably has a partial area of the interface 14 that belongs to the machine tool 2 .
- This sub-area of the interface 14, which belongs to the machine tool 2 can be used as a receiving device for accommodating the sub-area of the interface 14, which belongs to the energy supply device 1, may be formed.
- the partial areas of the interface 14 are designed to correspond in the sense that the energy supply device 1 can be inserted into the machine tool 2 in order to later attach it there and supply the machine tool 2 with electrical energy.
- the insertion direction 6 along which the energy supply device 1 can be inserted into the machine tool 2 is shown in FIG. 7 with an arrow.
- the insertion direction 6 preferably coincides with a first spatial axis I of a virtual coordinate system that is used to describe the invention.
- the energy supply device 1 is set up to supply a machine tool 2 with electrical energy.
- the energy supply device 1 can be inserted into a cavity of the machine tool 2 .
- the energy supply device 1 is inserted into the machine tool 2 along an insertion direction 6 which preferably coincides with a first axis I of a virtual coordinate system used to describe the invention.
- the virtual coordinate system also includes a second axis II and a third axis III.
- the coordinate system shown in FIG. 7 with the three axes I, II and III corresponds to the coordinate system shown in FIG.
- the partial area of the interface 14 that belongs to the machine tool 2 includes the second contact area 19 that includes the second contact material 25 .
- the energy supply device 1 In order to connect the energy supply device 1 to the machine tool 2, the energy supply device 1 has an interface 14, which preferably represents a mechanical interface.
- the interface 14 shown in FIG. 7 is on a top side of the energy supply device 1 .
- the energy supply device 1 has a front area 18 and a rear area 17 .
- the power supply device 1 may include a battery pack 21 that forms the lower portion of the power supply device 1 .
- the interface 14 is designed in such a way that the interface 14 allows a relative movement of the machine tool 2 and the energy supply device 1 in an insertion direction 6, with the first contact area 20 being in contact with the second contact area 19 in an inserted state in such a way that a relative movement between of the machine tool 2 and the power supply device 1 in the other spatial directions is prevented.
- the direction of insertion 6 preferably corresponds to the negative first spatial axis I of the virtual coordinate system used to describe the invention (cf. FIG. 1).
- the virtual coordinate system is also shown in Fig. 7, as well as a directional cross indicating the spatial directions "forward V", “backward H", “upward O” and “downward U” and denoted by the corresponding letters: V, H, O and U
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Biophysics (AREA)
- Computer Hardware Design (AREA)
- Life Sciences & Earth Sciences (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Battery Mounting, Suspending (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
- Portable Power Tools In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21211577.8A EP4190500A1 (de) | 2021-12-01 | 2021-12-01 | System aus werkzeugmaschine und energieversorgungsvorrichtung, sowie energieversorgungsvorrichtung |
| EP21211566.1A EP4190499A1 (de) | 2021-12-01 | 2021-12-01 | System, schnittstelle, werkzeugmaschine und energieversorgungsvorrichtung |
| PCT/EP2022/081796 WO2023099181A1 (de) | 2021-12-01 | 2022-11-14 | System aus werkzeugmaschine und energieversorgungsvorrichtung, sowie energieversorgungsvorrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4440778A1 true EP4440778A1 (de) | 2024-10-09 |
Family
ID=84387630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22817686.3A Withdrawn EP4440778A1 (de) | 2021-12-01 | 2022-11-14 | System aus werkzeugmaschine und energieversorgungsvorrichtung, sowie energieversorgungsvorrichtung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250010450A1 (de) |
| EP (1) | EP4440778A1 (de) |
| JP (1) | JP2024543995A (de) |
| WO (1) | WO2023099181A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024545625A (ja) | 2021-12-01 | 2024-12-10 | ヒルティ アクチエンゲゼルシャフト | 機械工具と電力供給装置とを有するシステム、インターフェース及び電力供給装置 |
| EP4190499A1 (de) | 2021-12-01 | 2023-06-07 | Hilti Aktiengesellschaft | System, schnittstelle, werkzeugmaschine und energieversorgungsvorrichtung |
| EP4190498A1 (de) | 2021-12-01 | 2023-06-07 | Hilti Aktiengesellschaft | Systeme, die werkzeugmaschinen und eine energieversorgungsvorrichtungen umfassen, sowie energieversorgungsvorrichtung |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016203431A1 (de) | 2015-03-06 | 2016-09-08 | Robert Bosch Gmbh | Akkupack für eine Handwerkzeugmaschine und Verfahren zur Herstellung eines Akkupacks für eine Handwerkzeugmaschine |
| EP3441193A1 (de) | 2017-08-08 | 2019-02-13 | HILTI Aktiengesellschaft | Akkueinheit mit verriegelungsmechanismus |
| DE102017217495A1 (de) | 2017-09-29 | 2019-04-04 | Robert Bosch Gmbh | Akkupack |
-
2022
- 2022-11-14 WO PCT/EP2022/081796 patent/WO2023099181A1/de not_active Ceased
- 2022-11-14 US US18/708,789 patent/US20250010450A1/en active Pending
- 2022-11-14 EP EP22817686.3A patent/EP4440778A1/de not_active Withdrawn
- 2022-11-14 JP JP2024532803A patent/JP2024543995A/ja not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| US20250010450A1 (en) | 2025-01-09 |
| WO2023099181A1 (de) | 2023-06-08 |
| JP2024543995A (ja) | 2024-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP4440778A1 (de) | System aus werkzeugmaschine und energieversorgungsvorrichtung, sowie energieversorgungsvorrichtung | |
| EP4440781A1 (de) | System, schnittstelle, werkzeugmaschine und energieversorgungsvorrichtung | |
| WO2023099182A1 (de) | Energieversorgungsvorrichtung mit einem drehbar gelagerten verriegelungselement und werkzeugmaschine zur verbindung mit einer solchen energieversorgungsvorrichtung | |
| DE112015003376B4 (de) | Elektrisch angetriebene Kettensäge | |
| EP4440793A2 (de) | System mit einer werkzeugmaschine und einer energieversorgungsvorrichtung | |
| DE602004013398T2 (de) | batterieauswurfsmechanismus | |
| DE102016201802A1 (de) | Handwerkzeugmaschine | |
| EP3440723B1 (de) | Handwerkzeugmaschine | |
| EP4440780A1 (de) | Systeme, die werkzeugmaschinen und energieversorgungsvorrichtungen umfassen, sowie energieversorgungsvorrichtung | |
| EP4440796A1 (de) | System mit einer werkzeugmaschine und einer energieversorgungsvorrichtung, sowie schnittstelle und energieversorgungsvorrichtung | |
| WO2023099155A1 (de) | Energieversorgungsvorrichtung und werkzeugmaschine mit einer solchen energieversorgungsvorrichtung | |
| WO2023099149A1 (de) | Werkzeugmaschine mit einer kommunikationsverbindung zur seriellen digitalen kommunikation zwischen zwei transceivern, sowie system | |
| EP1827767A1 (de) | Vorrichtung mit einem handwerkzeugmaschinenkoffer | |
| DE102004040922A1 (de) | Wechselhandwerkzeugakkueinheit, Handwerkzeugmaschine und Ladevorrichtung | |
| EP1774607A2 (de) | Batteriepack sowie elektrohandwerkzeugmaschine | |
| EP4190505A1 (de) | System, das eine werkzeugmaschine und eine energieversorgungsvorrichtung umfasst, sowie energieversorgungsvorrichtung | |
| WO2023099163A1 (de) | Werkzeugmaschinen mit stromleiter, sowie energieversorgungsvorrichtung | |
| EP2007557B1 (de) | Akku-handwerkzeugmaschine | |
| EP4209309A1 (de) | Energieversorgungsvorrichtung mit einem drehbar gelagerten verriegelungselement und werkzeugmaschine zur verbindung mit einer solchen energieversorgungsvorrichtung | |
| EP4190500A1 (de) | System aus werkzeugmaschine und energieversorgungsvorrichtung, sowie energieversorgungsvorrichtung | |
| DE102021214995A1 (de) | Elektrisches Gerät mit einer Mehrzahl elektromechanischer Akkuschnittstellen | |
| EP4209308A1 (de) | System mit einer werkzeugmaschine und einer energieversorgungsvorrichtung, sowie schnittstelle und energieversorgungsvorrichtung | |
| EP4192199A1 (de) | Leiterplatte, system, energieversorgungsvorrichtung und werkzeugmaschine | |
| WO2023099204A1 (de) | System mit einer werkzeugmaschine und einer energieversorgungsvorrichtung, verbindungsverfahren, sowie schnittstelle | |
| WO2023099153A1 (de) | Energieversorgungsvorrichtung und werkzeugmaschine mit einer solchen energieversorgungsvorrichtung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20240701 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20250530 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20251001 |