Abstract
The invention relates to a system which comprises an electrically operated handheld device, which particularly takes the form of a hot-air handheld device or handheld grinding device, and a transport case for the handheld device, wherein the transport case comprises at least one first case shell. Here, the at least one first case shell comprises an outer side, the case shell comprising in its outer side a depression for partially accommodating the handheld device, and the depression extending in the direction of a stowage space of the transport case.
Claims
1. A system comprising an electrically operated handheld device and a transport case for the handheld device, wherein the transport case comprises a first case shell having an outer side, a second case shell, and a depression for partially accommodating the handheld device, wherein the depression one of extends in the direction of a stowage space of the transport case, or is arranged on the first case shell between a handle of the transport case and a hinge pin of the transport case, said hinge pin connecting the first and second case shells, wherein the handheld device is a hot-air device, wherein one of an operating position, a form fit is established between the first case shell and one of a handle of the handheld hot-air device or a fan portion of the handheld hot air device, or in the operating position the handheld hot air device has an end which is directed away from a hot air nozzle accommodated in the depression, wherein the handheld hot air device comprises at least one retaining mechanism, and wherein the depression of the first case shell includes at least one mount for the retaining mechanism.
2. The system as claimed in claim 1, wherein the first case shell is of tub-like design, wherein the depression is arranged on a base wall of the first case shell.
3. The system as claimed in claim 2, wherein the depression is arranged centrally in a base wall of the first case shell.
4. The system as claimed in claim 1, wherein the fan portion of the handheld device comprises at least one air-intake opening, wherein the handheld device and the first case shell are adapted to one another such that, in the operating position, air enters without obstruction into the at least one air-intake opening.
5. The system as claimed in claim 1, wherein the handheld device is designed in the form of a heat gun and comprises the handle, wherein, in the operating position, the handheld hot-air device butts against the transport case by way of one of an underside of the handle or a rear side of the handle.
6. The system as claimed in claim 1, wherein the depression is designed in the manner of a bowl with a periphery running all the way round, or wherein the depression is designed in the form of a slot with a lateral inlet, or wherein the depression is designed with a lateral inlet and a lateral outlet.
7. The system as claimed in claim 1, wherein in the operating position of the handheld hot-air device, an axis of a hot-air jet which can be generated by the handheld hot-air device defines an angle of 20° to 90° to a base wall of the first case shell and is directed away from a base wall.
8. The system as claimed in claim 1, wherein, in the operating position, the handheld hot-air device can be connected in a releasable manner to the first case shell by at least one latching mechanism, wherein the at least one latching mechanism is arranged between the first case shell and the handle of the handheld hot-air device or between the depression and the fan portion of the handheld hot-air device.
9. The system as claimed in claim 7, wherein the angle is 45° to 90°.
10. The system as claimed in claim 8, wherein the handheld hot-air device is connected to the depression of the first case shell.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) Further details of the present invention will be described in the drawing with reference to schematically illustrated exemplary embodiments.
(2) FIGS. 1 to 4 show a first variant of a system according to the present invention;
(3) FIGS. 5 and 6 show a second variant of a system according to the present invention;
(4) FIGS. 7 and 8 show two variants of depressions on case shells; and
(5) FIGS. 9-11 show a third variant of a system according to the present invention.
DETAILED DESCRIPTION OF THE INVENTION
(6) FIG. 1 illustrates a side view of a handheld hot-air device HLG in the form of a heat gun 1. The handheld hot-air device HLG or the heat gun 1 is designed in the form of an electrically operated handheld device EBH. The heat gun 1 comprises a handle 2, a fan portion 3, a heating portion 4 and a hot-air nozzle 5. The heat gun 1 also comprises an air-intake opening 6, in the fan portion 3, a switching device 7, on the handle 2, and an electric cable 8, which is routed within the handle 2.
(7) The heat gun 1 is illustrated again in FIG. 2 and, together with the transport case 101 shown there, forms a system S. The transport case 101 comprises a first case shell 102 and a second case shell 103. The two case shells 102, 103 are connected to one another by means of a hinge 104 such that they can be pivoted about a hinge pin 104a, it therefore being possible for the transport case 101, once unlocked, to be swung open by virtue of the first case shell 102 being pivoted in arrow direction w. A handle 105 here separates into a first handle half 105a, which is formed on the first case shell 102, and a second handle half 105b, which is formed on the second case shell 103. The first case shell 102 is designed in the form of a tub 106, or tub-like case shell 102, and a has a base wall 107, which is surrounded by four side walls 108, 109, 110 and 111 (see also FIG. 4). The base wall 107 and the side walls 108-111 form an outer side 112 of the first case shell 102. On this outer side 112 of the first case shell 102, a depression 113 is formed in the region of the base wall 107, the depression being directed into an interior or stowage space 114 of the transport case 101. The depression 113 is dimensioned, and oriented, such that the heat gun 1 can have its fan portion 3, which is located opposite its hot-air nozzle 5, inserted into the depression 113 in an arrow direction v, as indicated in FIG. 2, wherein FIG. 2 illustrates the heat gun 1, for reasons of simplicity, without an electric cable.
(8) The fully inserted heat gun 1 is then shown in FIG. 3, wherein that position of the heat gun 1 which is shown in FIG. 3 is referred to as operating position A. In order for the position of the heat gun 1 to be shown clearly in FIG. 3, the contour of the heat gun is illustrated by solid lines even in the region of the depression 113. It can also be seen in FIG. 3 that the heat gun 1 rests on the base wall 107 of the upper case shell 102 by way of a rear side 2b of its handle 2, the operating position A of the heat gun 1 being stabilized as a result.
(9) In the operating position A of the heat gun 1, an axis of a hot-air jet HLS (see FIG. 3), which can be generated by the heat gun 1, is at an angle α of 67° to the base wall 107 of the first case shell 102 and is directed away from the base wall 107.
(10) FIG. 3 also shows, as an alternative to the heat gun 1, a handheld hot-air device in the form of a hot-air rod 51, which, along with the transport case 101, likewise forms a system S. The hot-air rod likewise forms an electrically operated handheld device EBH. The hot-air rod 51 comprises a handle 52, which at the same time forms a fan portion 53, and also comprises a heating portion 54 and a hot-air nozzle 55. The hot-air rod 51 further comprises an air-intake opening 56, and a switching device 57, in the fan portion 53, and an electric cable (not illustrated). Like the heat gun 1, the hot-air rod 51 can likewise be inserted into the depression 113, so as to be retained in an operating position by the transport case 101.
(11) The aforementioned FIG. 4 illustrates the transport case 101, which has already been shown in FIGS. 2 and 3, in a plan view of its base wall 107. This plan view once again shows the depression 113, which is adapted to a rectangular cross section of the fan portion of the heat gun. The depression 113 has a periphery 115 running all the way round.
(12) FIGS. 5 and 6 show a second variant of a system S according to the present invention. For reasons of simplicity, only a first, upper case shell 302 of a transport case 301 is shown, in lateral section, the section being taken in the region of a depression 313 of the first case shell 302.
(13) The first case shell 302, once again, is designed in the form of a tub 306, or tub-like case shell 302, and has a base wall 307, which is surrounded by four side walls 309, 311, only two side walls being visible in the sectional illustration. The base wall 307 and the side walls 309, 311 form an outer side 312 of the first case shell 302. The same heat gun is depicted once by dashed lines, being designated heat gun 201′, and once by solid lines, being designated heat gun 201. The heat gun 201 is designed in the form of an electrically operated handheld device EBH. The heat gun 201 here is shown in an operating position A, in which the heat gun 201 is retained on the transport case 301. As the dashed illustration shows, the heat gun 201′ is first of all placed, by way of its fan portion 203, approximately vertically into the depression 313 and is then pivoted in arrow direction w′, and therefore a retaining means 203a of the fan portion 203, the retaining means being designed in the form of a waisted end, is introduced into a mount 313a, which is formed in the depression 313 and is configured in the form of a T-shaped guide. It is optionally the case that a handle 202 of the heat gun 201 has, on a rear side 202b, a contact element K, by way of which the heat gun 201 then rests, in the operating position A, on the base panel 307 of the first case shell 302. According to one variant, provision is also made for the handle 202 to rest on the base panel by way of an underside 202a or to butt against the side wall 309 by way of its rear side 202b.
(14) The section VI-VI, which is indicated in FIG. 5, is illustrated schematically in FIG. 6, and it can therefore be seen how the retaining means 203a is guided in the mount 313a, which is formed on the first case shell 202. The heat gun 201 is removed from the depression 313 by virtue of the heat gun 201 being pivoted counter to the arrow direction w′.
(15) FIGS. 7 and 8 show first case shells 502 and 702 in plan views of their base panels 507 and 707, respectively. Both case shells 502, 702 have depressions 513 and 713, respectively, in the form of undercut guides 550 and 750, respectively, which form mounts 513a and 713a, respectively, and into which heat guns (not illustrated) can be pushed by way of a shoe-design retaining means. If the shoe is a rotationally symmetrical design, it is also possible for the respective heat gun to be rotated in the respective guide 550, 750 and oriented in accordance with requirements. A square design of the shoe provides for four options for connecting the transport case and heat gun. A rectangular design of the shoe provides for two options for connecting the transport case and heat gun. If the transport case and the heat gun are to be connected to one another just in one orientation, provision is made for the shoe and the guide to be coded correspondingly, in order, therefore, for incorrect installation to be avoided.
(16) FIG. 9 illustrates, schematically, a side view of an electrically operated handheld device EBH in the form of a handheld grinder 801. The handheld grinder 801 comprises a housing 809, which can be gripped by hand, and a drive shaft 810, to which a grinding tool 811 is coupled. The handheld grinder 801 comprises an internal storage battery, but can also be connected to an external power source by an electric line. FIG. 9 also shows a plan view of a transport case 901, together with which the handheld grinder 801 forms a system S. The transport case 901 comprises a first case shell 902 and a second case shell 903. The two case shells 902, 903 are connected to one another in a pivotable manner by means of a hinge 904, it therefore being possible for the transport case 901, once unlocked, to be swung open by virtue of the first case shell 902 being pivoted in arrow direction w (see FIG. 10). An outer side 912 of the first case shell 902 has formed in it, in the region of a base wall 907, a depression 913 which opens laterally and in the upward direction, and is directed into an interior or stowage space of the transport case 901. The depression 913 is designed in the form of an open-periphery tub and is dimensioned, and oriented, such that the handheld grinder 801 can have approximately a third of its housing 809 inserted, as is illustrated in FIG. 10. FIG. 10 uses just a dashed line to indicate a grinding tool 811, it therefore being possible to see the housing 809 located in the depression 913. The handheld grinder 801 is retained by the transport case 901 such that, in the fixed state of the handheld grinder 801 which is shown in FIG. 10, the grinding tool 811 can rotate freely in relation to the transport case 901 and in relation to an underlying surface U, on which the transport case 901 rests, and therefore the user need not hold the handheld grinder 801 while the latter is operating. The course followed by a half-line HG810 which extends from the drive shaft 810 is unimpeded by the transport case 901 when the handheld grinder 801 is retained in the depression 913 of the transport case 901.
(17) FIG. 11 shows how the housing 809 of the handheld grinder 801 is accommodated in the depression 913 of the transport case 901 and is thus maintained in an operating position. Instead of the disk-shaped grinding tool shown in FIGS. 9 and 10, the drive shaft 810 of the handheld grinder 801 now has connected to it, by means of an adapter 812, a flexible shaft 813, which runs through a grip piece 814 to a further adapter 815, to which a conical grinding tool 816 is coupled. This makes it possible for a user to concentrate fully on the grinding work in hand, since there is no need for him to hold the housing 809 of the handheld grinder 801. The user can thus use his free hand to handle, for example, a workpiece which is to be machined.
(18) FIG. 11 illustrates an optionally present clamping means 817, which is designed in the form of a clamping strap 817a with end hooks 817b and 817c, by way of which said band can be fitted into recesses 902a, 902b, which are shown only in FIG. 11 and are formed in the first case shells 902.
(19) FIG. 11 also illustrates an optionally present latching means 818, which is designed in the form of a bracket 818a. The bracket 818a is adapted to a geometry of the housing 809 and can be latched by way of its ends, which comprise elastically deformable resilient arms 818b and 818c, into recesses 902c, 902d, which are shown only in FIG. 11 and are formed in the first case shell 902.
(20) The clamping strap 817a and the bracket 818a are illustrated in a transparent state in FIG. 11, and this means that the contour lines of the housing 809 of the handheld grinder 801 are not concealed.
LIST OF REFERENCE SIGNS
(21) K Contact element on 202 S System w Arrow direction w′ Arrow direction v Arrow direction A Operating position of 1, 201 HLS Hot-air jet HLS HLG Handheld hot-air device α Angle between 107 and HLS 1 Heat gun 2 Handle of 1 2b Rear side 2b of 2 3 Fan portion of 1 4 Heating portion of 1 5 Hot-air nozzle 6 Air-intake opening 7 Switching device 8 Electric cable 51 Hot-air rod 52 Handle of 51 53 Fan portion of 51 54 Heating portion of 51 55 Hot-air nozzle 56 Air-intake opening 57 Switching device 101 Transport case 102 First case shell 103 Second case shell 104 Hinge between 102 and 103 104a Hinge pin of 104 105 Handle 105a First handle half 105b Second handle half 106 Tub 107 Base wall of 106 and/or 102 108-111 Side wall of 106 112 Outer side of 102 113 Depression on 102 114 Interior or stowage space of 101 115 Periphery running all the way round 113 201 Heat gun (solid lines) 201′ Heat gun (dashed lines) 202 Handle 202a Underside of 202 202b Rear side of 202 203 Fan portion 203a Retaining mechanism on 203 301 Transport case 302 First, upper case shell 306 Tub 307 Base wall of 306 and/or 302 309, 311 Side wall of 306 313 Depression on 302 313a Mount 502 Case shell 507 Base panel of 502 513 Depression 513a Mount 550 Guide 702 Case shell 707 Base panel of 702 713 Depression 713a Mount 750 Guide 801 Handheld grinder 809 Housing 810 Drive shaft 811 Grinding tool 812 Adapter 813 Flexible shaft 814 Grip piece 815 Further adapter 816 Conical grinding tool 817 Clamping mechanism 817a Clamping strap 817b, 817c Hook 818 Latching mechanism 818a Bracket 818b, 818c Resilient arm 901 Transport case 902 First case shell 902a, 902b Recess for 817 902c, 902d Recess for 818 903 Second case shell 904 Hinge 907 Base wall 912 Outer side 913 Depression EBH Electrically operated handheld device HG810 Half-line extending from 810 w Arrow direction
