JP4700572B2 - Engine driven work machine - Google Patents

Description

  The present invention relates to an engine drive in which an engine body of an engine and a work machine that is driven by the engine and arranged in parallel to the engine body are mounted in a pipe-shaped frame so as to be surrounded by the frame. It relates to work equipment.

In such an engine-driven work machine, a pair of left and right wheels are pivotally supported at the lower part of the frame, and a handle for pushing and pulling the engine-driven work machine is fixedly attached to the frame. Known by 1.
Japanese Patent Laid-Open No. 10-89083

  However, in such an engine-driven work machine, the handle becomes an obstacle except during the movement, and an extra space for the engine-driven work machine is required for the handle.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an engine-driven work machine that can be moved and that has an installation space in an installation state other than during movement as small as possible.

In order to achieve the above object, according to the first aspect of the present invention, an engine main body of an engine and a work machine arranged in parallel with the engine main body so as to be driven by the engine are provided in a pipe-shaped frame. In an engine-driven work machine mounted so as to be surrounded by a frame, a pair of left and right wheels are pivotally supported at the lower part of the frame near one end of the frame along a parallel direction of the engine body and the work machine, The frame at the other end along the parallel direction is a pair of left and right vertical frames that are bent so as to form a concave portion recessed at one side along the parallel direction at the intermediate portion in the vertical direction, and upper ends of the vertical frames. An upper connecting frame that connects between the upper connecting frame and an upper end of a component that is attached to the uppermost part of the frame at the other end along the parallel direction. The length of the longitudinal frame is set to a value which enables the gripping by the operator, the support shaft being supported is disposed in the recess on both longitudinal frame, horizontally from the retracted position and the both vertical frame is folded down It is characterized in that a rod-like handle is supported so as to be able to turn between protruding positions protruding in the direction .

According to a second aspect of the present invention, in addition to the configuration of the first aspect of the invention, the upper connecting frame projects outward from the lower end of the vertical frame, and the bent portion of the vertical frame is parallel to the parallel frame. A pair of left and right vertical frames included in the frame at one end along the direction are connected to each other via an upper horizontal frame.

The invention according to claim 3 is characterized in that, in addition to the configuration of the invention according to claim 1 , the bent portion of the vertical frame is located above the center in the vertical direction of the vertical frame .

  Furthermore, in the invention according to claim 4, in addition to the structure of the invention according to any one of claims 1 to 3, a control panel is arranged in the recess so as not to protrude outward from the frame. It is characterized by that.

  According to the first aspect of the present invention, the frame has the concave portion recessed in the wheel side at the middle portion in the vertical direction at the end opposite to the side where the wheel is provided along the parallel direction of the engine body and the work machine. Since it has a pair of left and right vertical frames that bend and extend up and down and an upper connection frame that connects the upper ends of the vertical frames, the upper connection frame can be used as a protection member for the engine body or work implement In addition to being able to be used as a handle, the required installation space at the time of installation other than when moving can be kept small as compared with one having a fixed handle. Moreover, since the pair of left and right vertical frames are bent so as to form a recess, the operator can be closer to the engine body or the work machine, and the degree of freedom of the movement operation posture by grasping the upper connection frame is increased. It can be secured greatly. It is also possible to grip the upper part of both vertical frames between the parts attached to the top of the frame and the upper connecting frame, and the upper parts of both vertical frames are inclined so that two workers on the left and right can drive the engine. The work of lifting the work implement and the like can be facilitated, and the amount of upward protrusion of both vertical frames for that purpose can be kept relatively small.

In addition, by arranging the support part of the handle in the recess formed by both vertical frames, the handle and the frame can be prevented from interfering with each other and the degree of freedom of the handle shape can be increased. Or it is not necessary to make a space between the engine main body or the working machine and the frame larger than that set between the working machine and the frame, and a compact engine-driven working machine can be obtained as a whole.

According to the second aspect of the present invention, the strength reduction of the vertical frame due to the bending can be reinforced by the upper horizontal frame.

  According to the fourth aspect of the invention, the overall configuration can be made more compact by preventing the control panel from protruding from the frame while guarding the control panel with the frame.

  1 to 9 show an embodiment of the present invention. FIG. 1 is a partially cutaway front view of an engine generator, FIG. 2 is a plan view taken along the arrow 2 in FIG. 1, and FIG. 4 is a plan view of the fuel tank and the cover removed, FIG. 4 is a view taken along arrow 4 in FIG. 1, FIG. 5 is a view taken along arrow 5 in FIG. 7 is an exploded perspective view of the frame and the duct, FIG. 8 is a perspective view showing a relative arrangement of the generator, the exhaust muffler and the duct, and FIG. 9 is an engine generator for explaining the air flow. FIG.

  First, in FIG. 1 to FIG. 5, an engine generator as an engine-driven working machine includes an engine body 11 of an engine E having an exhaust muffler 12, a generator G as a working machine driven by the engine E, and a fuel tank 13. A battery 14 and a control box 16 having a control panel 15 are mounted on an open frame F so as to be surrounded by the frame F.

  The engine main body 11 is configured as a V-type two cylinder, and an output shaft 17 (see FIG. 1) of the engine main body 11 is coaxially connected to the generator G. That is, the engine body 11 and the generator G are mounted on the frame F in a state of being arranged in parallel in a direction along the axis of the output shaft 17.

  6 and 7 together, the frame F includes a pair of left and right lower portions extending parallel to each other along the parallel direction 18 of the engine body 11 and the generator G, that is, the direction along the axis of the output shaft 17. A first vertical frame 21 extending in the vertical direction and connected to one end (the left end in FIG. 1) on the generator G side along the parallel direction 18 in the horizontal frames 20 and 20 and the lower horizontal frames 20. 21, the first upper connecting frame 22 connecting the upper ends of the first vertical frames 21, and the other end on the engine body 11 side in the parallel direction 18 in the lower horizontal frames 20. A pair of left and right second vertical frames 23, 23 connected to the right end) and extending vertically, a second upper connecting frame 24 connecting the upper ends of the second vertical frames 23, and the parallel direction 18. A first lower cross frame 25 connecting the lower horizontal frames 20 on one side along the two sides, a second lower cross frame 26 connecting the lower horizontal frames on the other side along the parallel direction 18, and a pair of first vertical frames. A pair of upper horizontal frames 27, 27 that connect the upper portions of the frame portion 21... And the pair of second vertical frames 23, respectively, and an intermediate portion that connects between the intermediate portions of both the upper horizontal frames 27. A pair of vertical frames 28, 28 and a pair of upper horizontal frames 27, which are connected to the intermediate vertical frames 28, in order to suspend the entire engine generator using a hoist or the like and place it on a carriage or the like. The hangers 29 and 29 and the upper cross frame 30 connecting the upper portions of the first vertical frames 21 are configured as an open type.

  From the middle part of the lower horizontal frames 20 to one end along the parallel direction 18, the first vertical frames 21 and the first upper connecting frame 22 are formed by bending one pipe. Further, from the middle part of the lower horizontal frames 20 to the other end along the parallel direction 18, both the second vertical frames 23 and the second upper connecting frame 24 are formed by bending one pipe. These bent pipes are butt welded at the intermediate portions of the lower horizontal frames 20.

  Further, the first vertical frames 21 extend straight upward from the lower horizontal frames 20. The second vertical frames 23... Have intermediate portions near the upper ends of the second vertical frames 23 in the parallel direction 18. It is formed so as to be recessed on one side along. That is, the second vertical frame 23 is inclined so as to be positioned on one side along the parallel direction 18 as it goes upward, and the lower inclined portion 23a in which the lower end portion is integrally connected to the lower horizontal frame 20, and as it goes upward. The upper inclined portion 23b is inclined to be located on the other side along the parallel direction 18, and the lower inclined portion 23a is bent at the upper end thereof, and the lower inclined portion 23b is integrally connected. The inclined portion 23 b is integrally connected so as to form a concave portion 34 that is recessed on one side along the parallel direction 18. Moreover, the upper horizontal frames 27 are provided between the bent portions of the second vertical frames 23, that is, the connecting portions of the lower inclined portions 23a and upper inclined portions 23b, and the upper portions of the first vertical frames 21.

  A pair of left and right wheels 30, 30 are pivotally supported near the one end of the frame F along the parallel direction 18 and below the frame F. That is, the wheels 30 are pivotally supported on the portions of the lower horizontal frames 20 near the first vertical frames 21.

  In addition, brackets 80 are fixed to the bent portions of the second vertical frames 23 at portions corresponding to the concave portions 34 formed by the second vertical frames 23, and the brackets 80 are disposed in the concave portions 34. The substrate portions 32a and 32a of the rod-like handles 32 and 32 are rotatably supported via the support shafts 31 and 31. Thus, both the handles 32 can be rotated between a storage position where the handles 32 are folded downward and a protruding position which protrudes horizontally from the second vertical frames 23, and the two board portions 32a are the second ones. The storage position of the handle 32 is determined by contacting the lower inclined portions 23a of the vertical frames 23, and the protruding position of the handle 32 is determined by contacting the upper inclined portions 23b of the second vertical frames 23. Moreover, the protruding position of the handle 32 can be held by a stopper (not shown).

  Further, a support leg 33 is fixed to the lower part of the frame F near the other end of the frame F along the parallel direction 18, and the wheels 30. Is maintained.

  The generator G is supported on the first lower cross frame 25 via a pair of elastic mount members 35, 35, and the engine body 11 includes a pair of elastic mount members 36 on the second lower cross frame 26. Supported through. Further, the exhaust muffler 12 is formed long along the parallel direction 18 of the engine main body 11 and the generator G, and the power generation is performed along the upper part of one side of the generator G (left side in FIG. 4). A pair of exhaust pipes 37 and 38 that are disposed on one side of the machine G and extend from the engine body 11 are connected to the end of the exhaust muffler 12 on the engine body 11 side. A final exhaust pipe 39 projects from the end of the exhaust muffler 12 on the engine body 11 side, and the opening direction of the final exhaust pipe 39 is set on the side opposite to the generator G.

  Referring also to FIG. 8, the exhaust muffler 12 is accommodated in a muffler accommodating chamber 41 formed in a duct 40 that separates the exhaust muffler 12 and the generator G, and the duct 40 is The first to third duct members 42, 43, 44 are combined.

  The first duct member 42 is formed so as to be curved so as to cover the generator G from the exhaust muffler 12 side and separates the exhaust muffler 12 and the generator G from the lower end of the partition plate 42a. A bottom plate portion 42b extending to the opposite side of the generator G, a joining plate portion 42c rising from the upper end of the partition plate portion 42a, and an end portion of the partition plate portion 42a and the bottom plate portion 42b opposite to the engine body 11 And a joining plate portion 42d that rises from the side. The second duct member 43 includes a ceiling plate portion 43a that covers the exhaust muffler 12 from above, and an overhang portion 43b that is connected to the ceiling plate portion 43a so as to cover the end of the generator G on the engine body 11 side from above. Are integrated. Further, the third duct member 44 includes a flat end plate portion 44a extending vertically along the plane orthogonal to the output shaft 17 of the engine body 11, and the end plate portion 44a opposite to the generator G. And a pair of mounting plate portions 44c, 44c connected at right angles to the upper end of the end plate portion 44a.

  The joining plate portion 42 c of the first duct member 42 is fastened to the second duct member 43 by a plurality of screw members 46..., And the third duct member 44 is joined to the joining plate portion 42 d of the first duct member 42. It is concluded with…. Further, a support member 48 is installed between the upper portions of the second vertical frames 21 in the frame F. A pair of support plate portions 49, 49 provided on the support member 48 are attached to a mounting plate portion 44c of the third duct member 44. Are respectively fastened by screw members 50, 50, and the ceiling plate portion 43a of the second duct member 43 is provided with openings 51, 51 for arranging the support plate portions 49. Further, a support member 52 is installed between the upper horizontal frames 27 at a portion corresponding to the pair of hangers 29. The second duct member 43 is fastened to the support member 52 by a plurality of screw members 53. .

  In this way, the first to third duct members 42 to 44 are joined to each other to form the duct 40, and the duct 40 is supported by the frame F. In this duct 40, the exhaust muffler 12 and a partition plate portion 42a separating the generator G, a bottom plate portion 42b extending from the lower end of the partition plate portion 42a to the opposite side of the generator G, and an upper portion of the partition plate portion 42a. The ceiling plate portion 43a covering from above, and the end plate portion 44a connecting the end portions of the partition plate portion 42a, the bottom plate portion 42b, and the ceiling plate portion 43a on the side opposite to the engine body 11 are opposite to the generator G. A muffler housing chamber 41 is formed with the side opened and the side opposite to the engine body 11 closed.

  By the way, the opening portion 54 is provided in the partition plate portion 42 a, and a plurality of lower portions of the support legs 55 provided at the lower portion of the exhaust muffler 12 are disposed on the outer surface of the generator G at the portion facing the opening portion 54. It is fastened with bolts 56... And a heat insulating material (not shown) is filled between the lower part of the support leg 55 and the inner periphery of the opening 54.

  A protective cover 57 is disposed in the opening of the muffler housing chamber 41 opposite to the generator G. The protective cover 57 is formed by attaching an outer periphery of a metal mesh member 59 to a rectangular support frame 58, and the support frame 58 includes a plurality of bolts 60. And fastened to one intermediate vertical frame 28. In addition, the support frame is provided with a through hole 61 that faces the tip of the final exhaust pipe 39 extending from the exhaust muffler 12.

  By the way, a cooling fan 64 is provided on the engine body 11 on the side opposite to the generator G, and the cooling fan 64 rotates with the output shaft 17 by the air sucked from the outside. The cooling exhaust air after cooling the engine body 11 is guided to the muffler housing chamber 41 by the duct 40.

  The generator G has a cooling fan 65 at the end on the engine body 11 side. The cooling fan 65 rotates with the output shaft 17 to suck air from the outside into the generator G to generate power. The fan cover 66 that cools the machine G and is provided at the end of the generator G on the engine body 11 side so as to surround the cooling fan 65 is formed so that its outlet faces the muffler housing chamber 41.

  That is, the engine-side cooling air intake 67 for taking in the cooling air from the engine main body 11 and the power generation for taking in the cooling air from the generator G at the end of the muffler housing 41 on the engine main body 11 side. The generator-side cooling air intake 68 is disposed, but the generator-side cooling air intake 68 is an outlet of the fan cover 66 and is disposed below the exhaust muffler 12, and the generator-side cooling air intake 68 A louver 69 facing the generator-side cooling air intake 68 is fixed to the partition plate portion 42 a of the duct 40 so that the cooling air from the port 68 flows along the longitudinal direction of the exhaust muffler 12. The engine side cooling air intake 67 is formed around the generator side cooling air intake 68.

  The fuel tank 13 is disposed above the ceiling plate portion 43a of the generator G and the duct 40, and is separated from the exhaust muffler 12 by the ceiling plate portion 43a of the duct 40, A plurality of screw members 70 are fastened to upper horizontal frames 27 in the frame F. The battery 14 is supported and arranged at the lower side of the frame F on the opposite side of the generator G from the partition plate portion 42a.

  Further, the engine body 11 is covered from above with an upper cover 71 as a part having a plurality of air circulation holes 72. The upper cover 71 is attached to a plurality of screw members 73 on the upper horizontal frames 27. It is concluded with….

  By the way, the upper part of the second vertical frame 23 in the frame F, that is, the upper inclined part 23b... Protrudes upward from the upper cover 71, and the second continuous from the upper end of the upper cover 71 to the upper end of the upper inclined part 23b. The length L up to the upper connection frame 24 is set to such an extent that the projecting portion worker of the upper inclined portion 23b.

  The control panel 15 and the control box 16 are arranged such that the control panel 15 is arranged facing the left or right direction orthogonal to the opening direction of the muffler housing chamber 41 on the side opposite to the generator G. In this embodiment, a control panel 15 having a width corresponding to the width of the engine body 11 in the horizontal direction perpendicular to the axis of the output shaft 17 is connected to the generator with respect to the engine body 11. G and the exhaust muffler 12 are attached to the frame F on the opposite side.

  Moreover, the pair of second vertical frames 23 of the frame F at the end on the engine body 11 side is bent so as to form a recess 34 in the middle portion near the upper end of the second vertical frames 23. The control panel 15 is formed between the second vertical frames 23 so as to be along both sides of the recesses 43, and is supported by the support plates 74 and 74 fixed to the second vertical frames 23. Are fastened together with the control box 16 by a plurality of screw members 75.

  According to such a support structure of the control panel 15 to the frame F, the control panel 15 does not protrude outward from the second vertical frames 23 of the frame F.

  Next, the operation of this embodiment will be described. The output shaft 17 of the engine main body 11 constituted by the V-type two cylinders is coaxially connected to the generator G, and the direction along the rotation axis of the generator G, that is, the engine main body 11 And the long exhaust muffler 12 is arranged along one side upper part of the generator G along the parallel direction 18 of the generator G. Therefore, the width of the engine generator in the direction perpendicular to the axis of the output shaft 17 can be set small, and the passage width of the passage can be ensured even when installed near the wall of the passage.

  A muffler housing chamber 41 for accommodating the exhaust muffler 12 is formed in the duct 40 separating the muffler 12 and the generator G so as to open the side opposite to the generator G and close the side opposite to the engine body 11. The cooling air from the engine body 11 and the cooling air from the generator G are introduced into the muffler housing chamber 41, and the exhaust air discharge direction from the muffler housing chamber 41 and the exhaust air direction from the exhaust muffler 12 are formed. Is set on the side opposite to the generator G. That is, the duct 40 includes a partition plate portion 42a separating the exhaust muffler 12 and the generator G, a bottom plate portion 42b extending from the lower end of the partition plate portion 42a to the opposite side of the generator G, and the partition plate portion 42a. A ceiling plate portion 43a that is connected to the upper portion and covers the exhaust muffler 12 from above, and an end plate portion 44a that connects the end portions of the partition plate portion 42a, the bottom plate portion 42b, and the ceiling plate portion 43a opposite to the engine body 11 The muffler storage chamber 41 is formed by the partition plate portion 42a, the bottom plate portion 42b, the ceiling plate portion 43a, and the end plate portion 44a, and the end of the muffler storage chamber 41 on the engine body 11 side is formed. The engine side cooling air intake 67 for taking in the cooling air from the engine body 11 and the generator side cooling air intake 68 for taking in the cooling air from the generator G are arranged in the section. .

  In such a muffler housing chamber 41, cooling exhaust air from the engine body 11 is guided to the muffler housing chamber 41 from the side of the engine body 11 as shown by a chain line arrow in FIG. 9, and as shown by a broken line arrow in FIG. Then, the cooling exhaust air from the generator G is introduced into the muffler housing chamber 41, and the exhaust direction of the exhaust air from the muffler housing chamber 41 is set on the side opposite to the generator G. Further, the exhaust from the exhaust muffler 12, that is, the exhaust from the sampling exhaust pipe 39 is also set on the side opposite to the generator G.

  That is, since the exhaust air after cooling the exhaust muffler 12 and the exhaust direction of the exhaust from the exhaust muffler 12 are determined on the side opposite to the generator G, the generator G is arranged on the wall side so that it can be installed on the wall side. However, there is no support for driving.

  In addition, the cooling exhaust air from the engine main body 11 and the generator G is gathered and concentratedly flowed around the exhaust muffler 12, thereby improving the cooling efficiency of the exhaust muffler 12. Further, the exhaust muffler 12 is accommodated in the muffler accommodating chamber 41 in the duct 40, and the blowing direction of the cooling exhaust air after cooling the exhaust muffler 12 is set to one direction opposite to the generator G, thereby generating the generator G and the like. It is possible to effectively suppress leakage of high heat from the exhaust muffler 12 to other parts, and to suppress the influence of high heat from the exhaust muffler 12 to other parts such as the generator G. In addition, the cooling exhaust air from the muffler housing chamber 41 is exhausted from the outlet having a relatively large opening area, and the influence on the environment around the engine generator is suppressed to a small extent by reducing the exhaust air speed. Can do.

  Further, the generator side cooling air intake 68 is arranged below the exhaust muffler 12 so that the cooling air flows along the longitudinal direction of the exhaust muffler 12 in the muffler housing chamber 41. The cooling exhaust air from G can be effectively circulated along the direction in which the exhaust muffler 12 is arranged to further increase the cooling efficiency of the exhaust muffler 12.

  Also, a pair of left and right wheels 30 are pivotally supported at the lower part of the frame F near one end of the frame F along the parallel direction 18 of the engine body 11 and the generator G, and the frame F is supported at the other end along the parallel direction 18. Between the upper ends of the pair of left and right second vertical frames 23 that are bent so as to form a concave portion 34 that is recessed on one side along the parallel direction 18 at the middle in the vertical direction and that extend vertically. And the second upper connecting frame 24 between the second upper connecting frame 24 and the upper end of the upper cover 71 as a part attached to the uppermost part of the frame F at the other end along the parallel direction 18. Since the length L of the vertical frame 23 is set to a value that enables the operator to hold the second frame, the second upper connection frame 24 can be used as a protection member for the generator G, and the hand It can be used as, as compared to those having a fixed handle, it is possible to reduce the required installation space during installation other than the mobile. In addition, since the pair of left and right second vertical frames 23 are bent so as to form the recesses 34, the operator can approach the generator G and move by holding the second upper connecting frame 24. A large degree of freedom of posture can be secured. Further, it is possible to hold the upper portions of the second vertical frames 23 between the upper cover 71 and the second upper connecting frame 24 attached to the uppermost portion of the frame F, and the upper portions of the second vertical frames 23. Since it is inclined, it becomes easy for the two workers on the left and right to lift the engine generator, and the amount of protrusion upward of the second vertical frames 23 can be kept relatively small.

  Further, the support shafts 31 that are disposed in the recesses 34 and supported by the second vertical frames 23 are arranged between a storage position that is folded downward and a protruding position that protrudes horizontally from the second vertical frames 23. Since the rod-like handle 32 is supported so as to be able to rotate, the support portion of the handle 32 is disposed in the concave portion 34 formed by the second vertical frames 23 to thereby interfere with the handle 32 and the frame F. As a result, the degree of freedom of the handle shape can be increased, and the engine body 11 or the power generator can be compared with a portion where the handle 32 is supported between the engine body 11 or the generator G and the frame F. It is not necessary to make a large space between the machine G and the frame F, and it is possible to obtain a compact engine generator as a whole.

  By the way, the control panel 15 is arranged so as to face either the left or right direction orthogonal to the opening direction of the muffler housing chamber 41 opposite to the generator G. In this embodiment, the control panel 15 A control panel 15 having a width corresponding to the width of the engine body 11 in the horizontal direction perpendicular to the axis of the output shaft 17 is the frame F on the opposite side of the generator body G and the exhaust muffler 12 with respect to the engine body 11. Mounted on.

  Therefore, when the engine generator is installed near the wall so that the cooling hawaii discharge direction from the muffler accommodating chamber 41 is opposite to the wall of the building, the control panel 15 can be disposed at a position where it can be easily operated. it can.

  Further, the fuel tank 13 disposed above the generator G is supported by the frame F, and the duct 40 is formed so as to isolate the fuel tank 13 and the exhaust muffler 12, and the duct 40 includes a ceiling plate portion 43a. Since the fuel tank 13 is disposed on the upper side, it is possible to prevent the sound generated in the exhaust muffler 12 from leaking upward, and to prevent the high heat from the exhaust muffler 12 from affecting the fuel tank 12. Thus, it is possible to avoid the thermal influence from the exhaust muffler 12 to be exerted on the fuel tank 13 and to bring the fuel tank 13 closer to the exhaust muffler 12 and to make a compact arrangement.

  Moreover, the bent portion of the second vertical frame 23 and the pair of left and right first vertical frames 21 provided in the frame F at one end along the parallel direction 18 are connected to each other via the upper horizontal frame 27. Therefore, the strength reduction of the second vertical frames 23 due to the bending can be reinforced by the upper horizontal frames 27.

  Further, since the control panel 15 is disposed in the recesses 34 formed by the second vertical frames 23 so as not to protrude outward from the frame F, the control panel 15 is guarded by the frame F, The entire configuration can be made more compact by preventing the control panel 15 from protruding from the frame F.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. It is.

Front view of a partially cut-out engine generator 2 plan view of FIG. FIG. 2 is a plan view with the fuel tank and cover removed. 4 arrow view of FIG. 5 arrow view of FIG. Exploded perspective view of frame, fuel tank, top cover, protective cover and control panel Exploded perspective view of frame and duct Perspective view showing the relative arrangement of the generator, exhaust muffler and duct Conceptual diagram of engine generator for explaining air flow

DESCRIPTION OF SYMBOLS 11 ... Engine main body 15 ... Control panel 18 ... Parallel direction 23 ... Vertical frame 24 ... Upper connection frame 27 ... Upper horizontal frame 30 ... Wheel 31 ... Spindle 32 ... Handle 34 ... Recess 71 ... Part upper cover E ... Engine F ... Frame G ... Working machine generator

Claims (4)

An engine body (11) of the engine (E) and a work machine (G) arranged in parallel to the engine body (11) so as to be driven by the engine (E) include a pipe-shaped frame (F). In the engine drive working machine mounted so as to be surrounded by the frame (F),
A pair of left and right wheels (30) are pivotally supported on the lower part of the frame (F) near one end of the frame (F) along the parallel direction (18) of the engine body (11) and the work implement (G). The frame (F) at the other end along the parallel direction (18) is bent upward and downward so as to form a concave portion (34) recessed at one side along the parallel direction (18) at an intermediate portion in the vertical direction. The frame (F) has a pair of left and right vertical frames (23) extending and an upper connecting frame (24) connecting upper ends of the vertical frames (23), and the other end along the parallel direction (18). The length of both vertical frames (23) between the upper end of the part (71) attached to the uppermost part of the upper connection frame and the upper connection frame (24) is set to a value that enables gripping by an operator, and the recess (34 ) Placed in both vertical frames ( 3) The support shaft (31) supported by 3) is supported by a rod-like handle (32) that can be rotated between a storage position folded downward and a protruding position protruding horizontally from both the vertical frames (23). An engine-driven work machine characterized by the above . The upper connection frame (24) projects outward from the lower end of the vertical frame (23), and the frame (23) is bent at the vertical frame (23) and at one end along the parallel direction (18). The engine-driven work machine according to claim 1, characterized in that a pair of left and right vertical frames (21) provided in F) are connected to each other via an upper horizontal frame (27). The bent portion of the vertical frame (23), said longitudinal frame (23) in the vertically central portion engine driven work machine according to claim 1, characterized in that located above the.   The engine drive according to any one of claims 1 to 3, wherein a control panel (15) is arranged in the recess (34) so as not to protrude outward from the frame (F). Work machine.

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