JP6208639B2 - Working machine and its stacked structure - Google Patents

Description

  The present invention particularly relates to a working machine having a frame and a stacked structure thereof.

  As a working machine having a frame, for example, as described in Patent Document 1, a washing machine is known in which an engine and a plunger pump driven by the engine are mounted on a gantry. In this cleaning machine, a gantry is fixed between the lower portions of a pair of square frames. On the other hand, as described in Patent Document 2, a structure in which a plurality of washing machines can be stacked is known. The cart of this washing machine is composed of a base frame portion, and a main handle and an auxiliary handle that are erected on one end side and the other end side of the cart. When the bent portion of the main handle is folded, The tip of the curved portion is configured to abut on the auxiliary handle. An inverted U-shaped handle receiving portion projects from the lower frame. When the washing machines are stacked, the handle receiving portion is locked to the front end portion of the folded main handle. Further, the wheels of the upper washing machine engage with both outer sides of the main handle of the lower washing machine. In this way, the washing machines can be stacked in two or three stages.

JP 2013-192999 A JP-A-10-309543

  Even if the conventional working machine is configured to be stacked, there is no place for positioning when lowering the second stage working machine onto the first stage working machine during stacking. Or it was difficult to visually recognize the position to be lowered.

  An object of this invention is to provide the working machine which can perform a stacking operation | work easily and reliably, and its stacking structure.

The present invention includes a work machine (1) having a frame (2) supported by a front wheel (7) and a rear wheel (8), which can be stacked, and the frame (2) The lower frame (3) to which the axle (17) and the axle (18) of the rear wheel (8) are fixed are disposed above the lower frame (3), so that the other work implement (1) can be An upper frame (4) on which the axle (17) of the front wheel (7) of the other work machine (1) and the axle (18) of the rear wheel (8) are placed when stacked. On the upper frame (4) , a pair of protrusions (30, 30) are provided with a gap (d) in the front-rear direction, and the pair of protrusions (30, 30) is a front wheel (30) between them. provided by the axle (17) and the axle (18) fits such spacing of the rear wheels (8) (d) 7), when the other work machine (1) is staked, The axle (17) of the front wheel (7) or the axle (18) of the rear wheel (8) of the other work machine (1) placed on the side frame (4) is a pair of on the upper frame (4). The projections (30, 30) are configured to be locked from the front or the rear .

  According to this working machine (1), the axle (17) of the front wheel (7) and the axle (18) of the rear wheel (8) of another working machine (1) stacked on the upper frame (4) Is placed. Since the axle (17) of the front wheel (7) and the axle (18) of the rear wheel (8) are accommodated between the pair of protrusions (30, 30) provided on the upper frame (4), The other work implement (1) may be lowered so that the front and rear axles (17, 18) are fitted between the projections (30, 30), and positioning during the stacking operation is easy. Since the pair of protrusions (30, 30) are provided on the upper frame (4), the protrusions (30, 30) can be easily seen and the stacking operation can be performed reliably. In addition, since the front and rear axles (17, 18) are locked to the protrusions (30, 30), the stacked working machines (1) are stable and safety is ensured.

  If the inner side surfaces (30a) facing each other of the pair of protrusions (30, 30) are inclined so as to become lower as they approach each other, the front and rear axles (17, 18) can be easily fitted between the protrusions (30, 30). This further facilitates the stacking operation.

  The work machine (1) includes a suspension hook (20) protruding above the upper frame (4), and a set base (9) supported by the lower frame (3) and mounted with equipment. Further, the set stand (9) includes an axle (17) and a rear wheel (8) between the pair of protrusions (30, 30) of another work machine (1) disposed on the lower side. The hole (9a) through which the suspension hook (20) can be inserted is provided at a position corresponding to the suspension hook (20) of the other work machine (1) when the axle (18) of . According to this configuration, when the upper work machine (1) is lowered onto the lower work machine (1), the front and rear front / rear hooks (20) and the hole (9a) are combined with each other, Since the axles (17, 18) are fitted between the projections (30, 30), the stacking operation can be performed more easily and reliably.

  A plurality of the working machines (1) are provided, and the plurality of working machines (1) are arranged between a pair of protrusions (30, 30) such that the front wheel (7) axle (17) and the rear wheel (8) axle ( A stacked structure (100) of working machines (1) stacked in a state where 18) is accommodated. According to this stacked structure (100), the stacking work of the work machine (1) is easy and reliable, and further, safety is ensured.

  According to the present invention, the stacking operation can be performed easily and reliably.

It is the perspective view which looked at the working machine which concerns on one Embodiment of this invention from the top. It is the perspective view which looked at the working machine of FIG. 1 from the bottom. FIG. 2 is a perspective view of a stacked structure in which the working machines illustrated in FIG. 1 are stacked in two stages. FIG. 5 is a front view of FIG. 4. It is a front view which shows the latching | locking part of the two working machines stacked.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant descriptions are omitted. As used in the present specification and claims, the terms indicating the direction such as “up”, “down”, “left”, “right”, “front”, “rear”, etc. In the installed state, the normal forward direction of the working machine is defined as the front. In the following embodiments, the case where the present invention is applied to an engine-type high pressure washer will be described.

  With reference to FIG. 1 and FIG. 2, the washing machine (work machine) 1 of this embodiment is demonstrated. The washing machine 1 is an engine-type high-pressure washing machine and includes a pump 11 driven by the engine 10. The engine 10 is, for example, a single cylinder engine. The pump 11 is, for example, a plunger pump (reciprocating pump), and is driven by the engine 10 to absorb liquid (for example, water or cleaning liquid) from the water suction port 51, and through a hose connected to the discharge port 52, Liquid is discharged from a nozzle gun (both not shown). A line strainer 12 is provided between the water inlet 51 and the pump 11.

  The washing machine 1 includes a rectangular frame 2 and a front wheel 7 and a rear wheel 8 that support the frame 2. The frame 2 has quadrangular frames 2a and 2a extending in the vertical direction and the front-rear direction on both the left and right sides. Each frame 2a includes a lower frame 3, an upper frame 4, and It consists of a front frame 5a and a rear frame 5b that are connected in the front-rear direction. These lower frame 3, upper frame 4, front frame 5a, and rear frame 5b are made of, for example, steel pipes. The two upper frames 4, 4 extend in parallel, and a single reinforcing frame 6 is connected between them at the center in the front-rear direction. The two lower frames 3 and 3 extend in parallel, and the two support frames 13 and 13 are connected therebetween. An upper frame 4 is arranged vertically above the lower frame 3. Therefore, the left and right intervals of the lower frames 3 and 3 are equal to the left and right intervals of the upper frames 4 and 4.

  As shown in FIG. 2, the support frames 13, 13 extend in parallel and are separated in the front-rear direction corresponding to the separation distance between the axle 17 and the axle 18. A rectangular opening A is formed by the lower frames 3 and 3 and the support frames 13 and 13. The axle 17 of the front wheel 7 is fixed to the lower ends of the lower frame 3 and the front support frame 13, and the axle 18 of the rear wheel 8 is fixed to the lower ends of the lower frame 3 and the rear support frame 13. ing. The front wheel 7 and the rear wheel 8 are disposed on the outer side of the lower frames 3 and 3. As shown in FIG. 1, a brake lever 16 is rotatably attached to the outer surface of the left lower frame 3 so that the rear wheel 8 cannot rotate or can rotate. When the brake lever 16 is engaged with one of a plurality of pins 8a (or bolts, see FIG. 5) fixed to the rear wheel 8 and arranged in the circumferential direction, the rear wheel 8 is made non-rotatable. When the lever 16 is disengaged from the pin 8a, the rear wheel 8 is rotatable.

  On the support frames 13, 13, a rectangular steel plate set base 9 is attached via four anti-vibration rubbers 14. On the set base 9 supported by the lower frames 3 and 3 as described above, the above-described devices, that is, the engine 10 and the pump 11 are mounted. Each device of the cleaning machine 1 is housed in a space between the frames 2a and 2a. Further, the lower surface of the set base 9 is exposed downward from the opening A between the lower frames 3 and 3 and the support frames 13 and 13. An L-shaped nozzle gun holder 19 for holding the nozzle gun is attached to each of the right front frame 5a and the rear frame 5b so as to protrude outward from the frame 2.

  Further, the reinforcing frame 6 that connects the upper frames 4 and 4 is provided with an inverted U-shaped hanging hook 20 that protrudes above the upper frames 4 and 4. The suspension hook 20 extends along the extending direction of the reinforcing frame 6, in other words, extends along a plane orthogonal to the front-rear direction. The hanging hook 20 is provided at the position of the center of gravity in the front-rear direction and the left-right direction of the cleaning machine 1. By suspending the washing machine 1 by hanging a hanging tool (not shown) on the hanging hook 20 fixed to the reinforcing frame 6, the entire washing machine 1 can be transferred, transported, or stored.

  With reference to FIG. 3 and FIG. 4, the stacked structure 100 of the washing machine 1 will be described. In the washing machine 1 of the present embodiment, a plurality of washing machines 1 can be stacked. The washing machine 1 can be stacked in two or more stages, and the storage space of the washing machine 1 is reduced by such a configuration. When the upper cleaning machine 1 is lowered and stacked with respect to the lower cleaning machine 1, the upper cleaning machine 1 (that is, the cleaning to be stacked) is placed on the upper frames 4 and 4 of the lower cleaning machine 1. The axles 17 and 18 of the machine 1) are placed.

  As shown in FIGS. 1, 3, and 5, a pair of protrusions 30, 30 are provided on the upper frame 4 with a distance d in the front-rear direction. A pair of protrusions 30 are also provided on the other upper frame 4 with a distance d in the front-rear direction. Each protrusion 30 is joined to the upper frame 4 or other interposed member by welding or the like. As described above, the four protrusions 30 having the same size and shape are fixed on the upper frame 4 and protrude upward from the upper frame 4 by a predetermined height. The protrusions 30 on the right upper frame 4 and the protrusions 30 on the left upper frame 4 are aligned in the front-rear direction, so that these protrusions 30 and 30 are aligned left and right.

  As shown in FIG. 5, the two pairs of protrusions 30, 30 arranged in the front-rear direction are provided at a distance d such that the axle 17 of the front wheel 7 and the axle 18 of the rear wheel 8 are accommodated therebetween. In the present embodiment, each protrusion 30 is inclined so that the inner side surfaces 30a (that is, the rear surface of the front protrusion 30 and the front surface of the rear protrusion 30) facing each other in the front-rear direction become lower as they approach each other. That is, the protrusion 30 has a triangular shape when viewed from the left and right sides. The distance d between the lower ends (intersections with the upper frame 4) of the inner side surfaces 30 a of the protrusions 30 and 30 is slightly smaller than the distance between the front end of the axle 17 and the rear end of the axle 18. The distance d is slightly larger than the distance between the rear end of the axle 17 and the front end of the axle 18. The distance d between the protrusions 30 and 30 may be equal to the distance between the front end of the axle 17 and the rear end of the axle 18 or may be slightly larger than the distance.

  In the stacked structure 100 of the washer 1 shown in FIG. 3 and FIG. And they are stacked. Thereby, the protrusions 30 and 30 restrict the movement of the axle 17 and the axle 18 in the front-rear direction, and the washing machine 1 is stabilized. Further, as shown in FIG. 2, the axle 17 and the pair of protrusions 30, 30 of the washing machine 1 disposed on the lower side are disposed in the central portion of the set table 9 exposed downward from the opening A. A hole 9a through which the suspension hook 20 can be inserted is provided at a position corresponding to the suspension hook 20 of the washing machine 1 when the axle 18 is received. The hole 9a is a long hole extending in the left-right direction, and has a width slightly larger than that of the hanging hook 20 in the front-rear direction. The hole 9a restricts the movement of the set base 9 in the front-rear direction with respect to the hanging hook 20 while inserting the upper end portion 20a (see FIG. 3) of the hanging hook 20 of the other cleaning machine 1. Thus, the hole 9 a of the set base 9 is a relief hole for the hanging hook 20 and also locks the hanging hook 20 and contributes to fixing the washing machine 1.

  When stacking and storing a plurality of washing machines 1, the upper washing machine 1 is lowered while being suspended with respect to the lower washing machine 1. At this time, the operator lowers the cleaning machine 1 so that the hole 9 a of the upper suspension hook 20 is aligned with the suspension hook 20 of the lower cleaning machine 1. Here, the hole 9a and the hanging hook 20 can be inserted into the hole 9a only when the position and the rotation direction (horizontal direction) are matched. When the cleaning unit 1 is further lowered while aligning the hole 9a with the suspension hook 20, the upper end 20a of the suspension hook 20 is locked to the hole 9a. At the same time, the axles 17 and 18 are accommodated between the four protrusions 30. When the axles 17 and 18 are placed on the upper frame 4, the stacking is completed.

  According to the washing machine 1 of this embodiment described above, the axle 17 of the front wheel 7 and the axle 18 of the rear wheel 8 of the other washing machine 1 to be stacked are placed on the upper frame 4. Since the axle 17 of the front wheel 7 and the axle 18 of the rear wheel 8 are accommodated between the pair of projections 30, 30 provided on the upper frame 4, the front and rear axles 17, 18 are connected to the projections 30, 30. It is only necessary to lower the other washing machine 1 so as to fit between them, and positioning during the stacking operation is facilitated. Since the pair of protrusions 30, 30 are provided on the upper frame 4, the protrusions 30, 30 can be easily seen and the stacking operation can be performed reliably. Moreover, since the front and rear axles 17 and 18 are locked to the protrusions 30 and 30, the stacked washing machines 1 are stable, the washing machines 1 are prevented from falling, and safety is ensured.

  Further, since the inner side surfaces 30a facing each other of the pair of protrusions 30 and 30 are inclined so as to become lower as they approach each other, the front and rear axles 17 and 18 can be easily fitted between the protrusions 30 and 30, and the steps are further enhanced. Stacking work is easy.

  In addition, when the upper cleaning machine 1 is lowered onto the lower cleaning machine 1, the easy-to-see suspension hook 20 and the hole 9a are aligned, so that these locked states are easily visible. When these are locked, the front and rear axles 17 and 18 are fitted between the protrusions 30 and 30, so that the stacking operation can be performed more easily and reliably. The hanging hook 20 and the set base 9 have their original functions, but these parts are used to add positioning and locking functions. By such a device, ease of use and safety are improved, and the cost increase is suppressed without using a separate member, and a substantial cost reduction is realized.

  According to the stacked structure 100, the stacking operation of the washing machine 1 is easy and reliable, and further, safety is ensured.

  The hole 9 a provided in the set base 9 extends in the same left-right direction as the hanging hook 20, and has a slightly larger width than the hanging hook 20 in the front-rear direction. Therefore, the hole 9a not only restricts the movement of the set base 9 in the front-rear direction with respect to the hanging hook 20, but also determines the position and posture of the set base 9 with respect to the hanging hook 20, that is, the upper washing machine 1 to be stacked. And has a function of fixing the washing machine 1. As a result, the stability of the washing machine 1 when stacked and stored is increased.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment. For example, the pair of protrusions 30 is not limited to being provided on the left and right upper frames 4, 4, and may be provided on either the left or right upper frame 4. Even in this case, the washing machines 1 can be stably stacked.

  The shape of the protrusion 30 is not limited to a triangular shape. A cylindrical or prismatic protrusion may be used, and a dome-shaped (hemispherical) protrusion may be used. The hole 9a of the set base 9 may be omitted.

  In the above embodiment, an engine-type high-pressure washer has been described. However, the present invention is not limited to such a type of washer, and can be applied to other types of washer. The present invention is not limited to a cleaning machine, and is a working machine having a frame, and can be applied to all working machines that can be stacked. Further, the frame is not limited to a rectangular frame.

  DESCRIPTION OF SYMBOLS 1 ... Washing machine (work machine), 2 ... Frame, 3 ... Lower frame, 4 ... Upper frame, 7 ... Front wheel, 8 ... Rear wheel, 9 ... Set stand, 9a ... Hole, 10 ... Engine, 11 ... Pump , 17 ... axle (front axle), 18 ... axle (rear axle), 20 ... hanging hook, 30 ... projection, 30a ... inner surface, 100 ... stacked structure, d ... spacing.

Claims (4)

A working machine (1) having a frame (2) supported by a front wheel (7) and a rear wheel (8) and capable of being stacked,
The frame (2)
A lower frame (3) to which an axle (17) of the front wheel (7) and an axle (18) of the rear wheel (8) are fixed;
The axle (17) and the rear of the front wheel (7) of the other work implement (1) when the other work implement (1) is stacked, arranged above the lower frame (3). An upper frame (4) on which the axle (18) of the wheel (8) is placed;
On the upper frame (4) , a pair of protrusions (30, 30) are provided with an interval (d) in the front-rear direction,
The pair of protrusions (30, 30) are provided at the interval (d) such that the axle (17) of the front wheel (7) and the axle (18) of the rear wheel (8) are accommodated therebetween. And
When the other work implement (1) is stacked, the axle (17) or the rear wheel of the front wheel (7) of the other work implement (1) placed on the upper frame (4). The working machine (1 ), wherein the axle (18) of (8) is configured to be locked from the front or rear by the pair of protrusions (30, 30) on the upper frame (4). ).   The working machine (1) according to claim 1, wherein inner surfaces (30a) facing each other of the pair of protrusions (30, 30) are inclined so as to become lower as they approach each other. A hanging hook (20) protruding above the upper frame (4);
A set base (9) supported by the lower frame (3) and on which equipment is mounted;
The set stand (9) includes an axle (17) and a rear wheel (7) of the front wheel (7) between the pair of protrusions (30, 30) of another work machine (1) disposed on the lower side. A hole (9a) through which the suspension hook (20) can be inserted is provided at a position corresponding to the suspension hook (20) of the other work machine (1) when the axle (18) of 8) is received. The working machine (1) according to claim 1 or 2, wherein the working machine (1) is provided.   A plurality of work implements (1) according to any one of claims 1 to 3, wherein the plurality of work implements (1) are arranged between the pair of protrusions (30, 30) of the front wheel (7). A stacked structure (100) of work machines (1) stacked in a state where the axle (17) and the axle (18) of the rear wheel (8) are accommodated.

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