Work machine

Abstract

To provide a work machine allowing a wheel stopper to be stably supported and to be easily extracted and inserted.SOLUTION: A vibration roller 1 (work machine) is provided with a vehicle body 10, a front wheel and a rear wheel 12 (wheel) arranged on the vehicle body 10, and a support mechanism 30A arranged on the vehicle body 10 to support a wheel stopper 20 preventing rotation of the rear wheel 12 upon parking of the wheel body 10. The support mechanism 30A includes a support member 40 supporting the wheel stopper 20 by extractably and insertably clamping it from an upper direction, and a limit member 50 capable of moving between a limiting position limiting the wheel stopper 20 to move upward and an unlimited position allowing upward movement of the wheel stopper 20 without limit.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a work machine equipped with a support member that supports a wheel stopper that prevents the wheels from rotating when the vehicle body is parked. [Background technology]

[0002] Conventionally, there is known a technique related to a work machine equipped with a support member that supports a wheel stopper that prevents the wheels from rotating when the vehicle is parked. For example, Patent Document 1 describes a wheel stopper holding structure for a rolling vehicle, in which a through hole is formed by a notch provided in an intermediate step when an operator gets into the cab and an inclined front plate of a main frame, and the wheel stopper is held in the through hole so that it can be freely inserted and removed from above. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2002-121703 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the case of work machines such as large vibratory rollers used on civil engineering construction sites, there was a problem that the wheel stoppers were prone to falling off the body due to the shaking of the body when traveling on rough roads or the vertical impact when going over steps.

[0005] The present invention has been made in consideration of the above problems, and an object of the present invention is to provide a work machine that can stably support a wheel chock and that can be easily inserted and removed. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the working machine of the present invention comprises a vehicle body, wheels provided on the vehicle body, and a support mechanism provided on the vehicle body and supporting wheel chocks that prevent rotation of the wheels when the vehicle body is parked, wherein the support mechanism includes a support member that supports the wheel chock by clamping it so that it can be inserted and removed from above, and a regulating member that is movable between a regulating position that regulates the upward movement of the wheel chock supported by the support member and a non-regulating position that does not regulate the upward movement of the wheel chock. Effect of the Invention

[0007] According to the working machine of the present invention, the wheel chock can be stably supported and can be easily inserted and removed. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a side view showing a vibrating roller as a work machine according to the embodiment. [Diagram 2] 1 is a perspective view showing a vehicle body to which a support mechanism according to a first embodiment is attached. FIG. [Diagram 3] FIG. 2 is a perspective view showing a support mechanism according to the first embodiment. [Figure 4] FIG. 2 is a vertical cross-sectional view showing the support mechanism of the first embodiment. [Diagram 5] FIG. 11 is a perspective view showing a modified example of the restricting member of the first embodiment. [Figure 6] FIG. 11 is a perspective view showing a support mechanism according to a second embodiment. [Figure 7] 13A to 13C are explanatory views showing a schematic diagram of a procedure for inserting and removing a wheel stopper in the support mechanism of the second embodiment. [Figure 8] FIG. 13 is a perspective view showing a support mechanism according to a third embodiment. [Figure 9] FIG. 11 is a vertical cross-sectional view showing a support mechanism according to a third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] An embodiment of the present invention will be described below with reference to the drawings. In the following description, the front-rear, left-right, and up-down directions of the work machine are described with reference to an operator riding on the work machine. Fig. 1 is a side view showing a vibrating roller as a work machine of the embodiment.

[0010] The vibratory roller 1 shown in FIG. 1 has a vehicle body 10 including a front vehicle body 10a and a rear vehicle body 10b. The front vehicle body 10a and the rear vehicle body 10b are connected via an articulation mechanism, and the front vehicle body 10a and the rear vehicle body 10b can be bent in the horizontal direction around the articulation mechanism by driving a steering cylinder (not shown) provided in the front vehicle body 10a. A driver's cab 13 is provided in the front part of the rear vehicle body 10b, and below the driver's cab 13, a step 14 is provided for an operator (driver) to step on when getting into the driver's cab 13. An engine room is defined inside the rear vehicle body 10b, and an engine, a hydraulic pump powered by the engine, a hydraulic motor for traveling, and the like are mounted in the engine room.

[0011] Front wheels 11 (wheels) and rear wheels 12 (wheels) are attached to the front body 10a and the rear body 10b. More specifically, the front wheels 11 are rolling wheels for rolling and compacting the road surface, ground, etc., and are rotatably supported by the front body 10a. The rear wheels 12 are rotatably supported, one on each side of the rear body 10b. The front wheels 11 and the rear wheels 12 are driven by a hydraulic motor for traveling mounted on the body 10, thereby causing the body 10 to travel.

[0012] When parking the vibratory roller 1 configured as above, wheel chocks 20 are used to prevent the rotation of the front wheels 11 and rear wheels 12 as wheels. For example, one wheel chock 20 is disposed in front of and one wheel chock 20 in rear of either the left or right rear wheel 12, and is inserted between the rear wheels 12 and the road surface to prevent the rear wheels 12 from rotating. At least two wheel chocks 20 are required, and four or more wheel chocks 20 may be used. Also, in FIG. 1, the wheel chocks 20 are illustrated diagrammatically, and a gap is provided between the rear wheels 12 and the wheel chocks 20 to distinguish them, but in reality the rear wheels 12 and the wheel chocks 20 abut against each other.

[0013] If such wheel chocks 20 are detachably attached to the vehicle body 10, the worker can quickly insert the wheel chocks 20 into the rear wheels 12 when parking the vibratory roller 1, and quickly attach the wheel chocks 20 to the vehicle body 10 when the vibratory roller 1 starts running again. However, in the case of large-class vibratory rollers 1 used at civil engineering construction sites, etc., there is a problem that the wheel chocks 20 are likely to fall off the vehicle body due to the vehicle body shaking when traveling on rough roads and the vertical impact when going over steps. Therefore, in the vibratory roller 1 of the embodiment, the wheel chocks 20 are attached to the vehicle body 10 using the following support mechanism.

[0014] [First embodiment] FIG. 2 is a perspective view showing a vehicle body 10 to which the support mechanism of the first embodiment is attached. FIG. 3 is a perspective view showing the support mechanism of the first embodiment. FIG. 4 is a vertical cross-sectional view showing the support mechanism of the first embodiment. As shown in FIG. 1 and FIG. 2, the support mechanism 30A is disposed between the front wheels 11 and the rear wheels 12 and below the cab 13, and is provided on the side surface 10c of the rear vehicle body 10b. As a result, by disposing the support mechanism 30A supporting the wheel stopper 20 in the vicinity of the cab 13 and the rear wheels 12 in this manner, it is possible to prevent the operator from forgetting to insert the wheel stopper 20 into the rear wheels 12 after parking the vibratory roller 1.

[0015] The support mechanism 30A includes a support member 40. As shown in FIG. 2 and FIG. 3, the support member 40 includes a first side plate portion 41 and a second side plate portion 42 that extend in the vertical direction and are arranged opposite each other. The first side plate portion 41 and the second side plate portion 42 are bolted to the side surface 10c of the rear vehicle body 10b. The first side plate portion 41 and the second side plate portion 42 are connected to each other at a first connecting portion 44, a second connecting portion 45, and a third connecting portion 46 that extend between the first side plate portion 41 and the second side plate portion 42 on the side opposite to the rear vehicle body 10b. The first connecting portion 44, the second connecting portion 45, and the third connecting portion 46 are provided at intervals in the vertical direction, and each is provided with the above-mentioned lifting step 14. That is, the support member 40 also serves as a mounting member for the lifting step 14 of the vibration roller 1. This makes it possible to suppress an increase in the number of parts of the vibration roller 1 and to save space. Each lift step 14 is configured so that the lower the lift step 14, the longer the left-right protruding length. The space between the second connecting part 45 and the third connecting part 46 accommodates other devices used in the vibration roller 1.

[0016] Here, as shown in Fig. 4, the wheel stopper 20 has a placement surface 21, an upper surface 22, a curved surface 23, and a weight abutment surface 24. The placement surface 21 is a surface that is placed on the road surface when the wheel stopper 20 is used, and the upper surface 22 is a surface that faces the placement surface 21 (see Fig. 1). The curved surface 23 is formed on one end 20a of the wheel stopper 20, curves from the placement surface 21 toward the upper surface 22 so as to follow the outer circumferential surface of the rear wheel 12, and is a surface that comes into contact with the rear wheel 12 when the wheel stopper 20 is inserted between the road surface and the rear wheel 12. The weight abutment surface 24 is formed on the other end 20b of the wheel stopper 20, and extends from the placement surface 21 to the upper surface 22. The weight abutment surface 24 is formed with a weight abutment portion 24a that is formed so as to be recessed in a tapered shape toward the curved surface 23 side in order to place a regulating member 50 described later on.

[0017] As shown in Fig. 2 and Fig. 4, the two wheel chocks 20 are inserted side by side between the side surface 10c of the rear vehicle body 10b and the first connecting portion 44 with one end 20a facing downward through the space between the first connecting portion 44 and the second connecting portion 45. As a result, the wheel chocks 20 are supported by being sandwiched between the side surface 10c and the first connecting portion 44, with the placement surface 21 abutting against the side surface 10c and the curved surface 23 abutting against the first connecting portion 44. At this time, the range of the wheel chocks 20 where the curved surface 23 is formed is a wedge-shaped portion that tapers toward the one end 20a side, so that the greater the downward force acting on the wheel chocks 20, the more the wheel chocks 20 slip between the side surface 10c and the first connecting portion 44 and are firmly sandwiched.

[0018] In order to more stably support such a wheel stopper 20, the support member 40 of the first embodiment has the following configuration in addition to the above configuration. As shown in Figs. 3 and 4, a support plate 43 is attached to the first side plate portion 41, extending along the first side plate portion 41 between the first connecting portion 44 and the second connecting portion 45. The support plate 43 is disposed to face the second side plate portion 42, and in a state in which the wheel stopper 20 is inserted between the side surface 10c and the first connecting portion 44, the support plate 43 and the second side plate portion 42 sandwich the wheel stopper 20. In addition, the second side plate portion 42 and the support plate 43 are formed with grooves 48 extending in the up-down direction at positions facing each other. The grooves 48 are formed by holes penetrating the first side plate portion 41 and the second side plate portion 42 in the front-rear direction of the vibration roller 1. 4, the groove 48 includes a first groove portion 481 extending upward from the vicinity of the weight abutment portion 24a of the wheel stopper 20 supported by the support member 40, and a second groove portion 482 extending upward from an upper portion of the first groove portion 481 toward the side surface 10c of the rear body portion 10b. Furthermore, a notch portion 483 recessed downward is formed at the end of the second groove portion 482.

[0019] As shown in FIG. 3 and FIG. 4, a regulating member 50 is attached between the second side plate portion 42 and the support plate 43. The regulating member 50 is a shaft-shaped weight member made of, for example, a metal material, and both ends thereof are slidably housed in each groove 48. A disk-shaped anti-falling member 52 that slidably abuts on the surface of the support plate 43 on the side of the first side plate portion 41 is attached to one end of the regulating member 50. A disk-shaped anti-falling member 53 that slidably abuts on the outer surface of the second side plate portion 42 is attached to the other end of the regulating member 50. This allows the regulating member 50 to move freely along the groove 48, and the anti-falling members 52, 53 prevent the regulating member 50 from falling out of the groove 48. That is, the groove 48 functions as a guide mechanism that allows the regulating member 50 to move only in a predetermined direction (the direction along the groove 48).

[0020] With the above configuration, when the wheel stopper 20 is supported by the support member 40, the restricting member 50 is positioned at the lower end of the groove 48 as shown by the solid line in FIG. 4, so that the restricting member 50 is positioned at the restricting position P1 where the restricting member 50 abuts against the weight abutting portion 24a of the wheel stopper 20. As a result, the restricting member 50 presses the wheel stopper 20 downward, and the upward movement of the wheel stopper 20 is restricted. In addition, as the restricting member 50 presses the wheel stopper 20 downward, a force acts in a direction in which the wheel stopper 20 slips further between the side surface 10c and the first connecting portion 44. As a result, the wheel stopper 20 is sandwiched more firmly between the side surface 10c and the first connecting portion 44, and the wheel stopper 20 is supported more stably.

[0021] On the other hand, when the wheel stopper 20 is to be removed from the support member 40, the regulating member 50 is lifted upward along the groove 48 and placed on the notch 483 as shown by the broken line in FIG. 4. This allows the regulating member 50 to be held at a position away from the wheel stopper 20 to the extent that the wheel stopper 20 can be removed from the support member 40. In this manner, the notch 483 functions as a holding mechanism that holds the regulating member 50 at the upper part of the groove 48. In addition, by moving the regulating member 50 away from the wheel stopper 20, the regulating member 50 is brought into a non-regulating position P2 where the regulating member 50 does not regulate the upward movement of the wheel stopper 20. As a result, the wheel stopper 20 can be removed upward from the support member 40. The non-regulating position P2 of the regulating member 50 may be any position away from the wheel stopper 20 to the extent that the wheel stopper 20 can be removed from the support member 40.

[0022] As described above, the vibratory roller 1 (work machine) of the first embodiment includes a vehicle body 10 having a cab 13, front wheels 11 and rear wheels 12 (wheels) provided on the vehicle body 10, and a support mechanism 30A provided on the vehicle body 10 and supporting the wheel stopper 20 that prevents the rear wheels 12 from rotating when the vehicle body 10 is parked. The support mechanism 30A includes a support member 40 that supports the wheel stopper 20 by clamping it so that it can be inserted and removed from above, and a restricting member 50 that is movable between a restricting position P1 that restricts the upward movement of the wheel stopper 20 and a non-restricting position P2 that does not restrict the upward movement of the wheel stopper 20.

[0023] With this configuration, simply by positioning the restricting member 50 at the restricting position P1, it is possible to prevent the wheel stopper 20 from falling off from the support member 40. Also, simply by positioning the restricting member 50 at the non-restricting position P2, it is possible to move the wheel stopper 20 upward, so that the wheel stopper 20 can be inserted into or removed from the support member 40. Therefore, according to the vibrating roller 1 of this embodiment, the wheel stopper 20 can be stably supported and easily inserted or removed.

[0024] The support member 40 supports the wedge-shaped portion of the wheel stopper 20 by clamping it from above so that it can be inserted and removed, and the restricting member 50 is a weight member that presses the wheel stopper 20 downward at the restricting position P1, and the support member 40 is formed with a groove 48 that allows the weight member to move vertically between the restricting position P1 and the non-restricting position P2. With this configuration, the restricting member 50 can be easily positioned at the restricting position P1 and the non-restricting position P2 simply by moving the restricting member 50 vertically within the groove 48. Furthermore, by pressing the restricting member 50, which is a weight member, against the wheel stopper 20 at the restricting position P1, it is possible to support the wheel stopper 20 more stably.

[0025] Furthermore, the support member 40 includes a notch 483 as a holding mechanism that holds the restricting member 50 at the upper part of the groove 48, which is the non-restriction position P2. With this configuration, the restricting member 50 can be held at the non-restriction position P2, so that an operator can more easily insert and remove the wheel stopper 20 from the support member 40.

[0026] 5 is a perspective view showing a modified example of the regulating member 50 of the first embodiment. As shown in the figure, the regulating member 50 may include a gripping portion 55 that is gripped by an operator. The gripping portion 55 is a U-shaped portion extending from a shaft-shaped portion of the regulating member 50 in a direction perpendicular to the shaft-shaped portion. With this configuration, an operator can grip the gripping portion 55 and easily move the regulating member 50. The gripping portion 55 may be attached to the regulating member 50 of a second embodiment described later.

[0027] [Second embodiment] 6 is a perspective view showing a support mechanism of the second embodiment. In the support mechanism 30B of the second embodiment, the groove 48 formed in the support member 40 does not include the second groove portion 482 and the notch portion 483 of the first embodiment. Moreover, the support mechanism 30B includes an auxiliary member 60 instead of the above-mentioned fall-off prevention members 52 and 53.

[0028] The auxiliary member 60 includes legs 61, 62, an auxiliary portion 63, and a step attachment portion 64. The leg portion 61 is attached to one end of the regulating member 50 and extends along the surface of the support plate 43 on the first side plate portion 41 side. The leg portion 62 is attached to the other end of the regulating member 50 and extends along the outer surface of the second side plate portion 42. The legs 61, 62 extend downward from one end 20a of the wheel stopper 20 supported by the support member 40. The auxiliary portion 63 extends from the lower ends of the legs 61, 62 to a position where it overlaps with the one end 20a of the wheel stopper 20 in the vertical direction, and is a portion that is connected to each other. The step attachment portion 64 extends from the lower ends of the legs 61, 62 toward the opposite side to the auxiliary portion 63, and is a portion that is connected to each other. The step attachment portion 64 is attached to the lift step 14 that was attached to the first connecting portion 44 in the first embodiment.

[0029] The operation of the second embodiment will be described with reference to Fig. 7. Fig. 7 is an explanatory diagram that shows a schematic diagram of the procedure for inserting and removing the wheel stopper 20 in the support mechanism 30B of the second embodiment. First, as shown in step St1 of Fig. 7, when the wheel stopper 20 is supported by the support member 40, the regulating member 50 abuts against the weight abutment portion 24a of the wheel stopper 20. That is, as in the first embodiment, the regulating member 50 is located at the regulating position P1, and the wheel stopper 20 is pressed downward to regulate the upward movement. At this time, the auxiliary portion 63 is located below the one end 20a, which is the lower end portion of the wheel stopper 20.

[0030] When removing the wheel stopper 20 from this state, the worker lifts the restricting member 50 upward along the groove 48 as shown in step St2. As a result, the restricting member 50 moves away from the wheel stopper 20 to the non-restricting position P2 where the upward movement of the wheel stopper 20 is not restricted. The auxiliary part 63 comes into contact with the one end 20a of the wheel stopper 20. When the restricting member 50 is further moved upward, the auxiliary part 63 pushes the one end 20a of the wheel stopper 20 upward as shown in step St3. As a result, the wheel stopper 20 falls toward the opposite side to the side surface 10c of the rear vehicle body 10b while being lifted upward by the auxiliary part 63. This allows the worker to easily remove the wheel stopper 20 from the support member 40.

[0031] On the other hand, when inserting the wheel stopper 20 into the support member 40, the procedure from step St1 to step St3 is performed in reverse. That is, first, as shown in step St3, the worker inserts the wheel stopper 20 into the support member 40 from one end 20a with the regulating member 50 positioned at the upper part of the groove 48 (i.e., in the non-regulating position P2). At this time, the one end 20a is placed on the auxiliary part 63. Then, as shown in step St2, the worker moves the regulating member 50 downward along the groove 48. As a result, the wheel stopper 20 moves downward with the one end 20a placed on the auxiliary part 63, and is supported by the support member 40. Furthermore, if the regulating member 50 is moved downward as shown in step St1, the regulating member 50 reaches the regulating position P1 where the regulating member 50 abuts against the weight abutting part 24a of the wheel stopper 20. In this way, by performing operations in conjunction with the regulating member 50 and the auxiliary part 63 when inserting the wheel stopper 20 into the support member 40, it is possible to prevent the worker from forgetting to position the regulating member 50 at the regulating position P1.

[0032] As described above, the support mechanism 30B of the second embodiment further includes the auxiliary member 60 that is attached to the regulating member 50 and abuts against one end 20a (lower end) of the wheel stopper 20 supported by the support member 40. With this configuration, the wheel stopper 20 can be easily moved upward by moving the regulating member 50 and the auxiliary member 60 upward, which makes it easy to remove the wheel stopper 20 from the support member 40. Furthermore, when inserting the wheel stopper 20 into the support member 40, if the regulating member 50 and the auxiliary member 60 are moved downward with the one end 20a of the wheel stopper 20 placed on the auxiliary member 60, it is possible to prevent forgetting to place the regulating member 50 on the wheel stopper 20.

[0033] Furthermore, the support member 40 is disposed below the cab 13 provided in the vehicle body 10, and the restricting member 50 is provided with an access step 14 for an operator to ascend and descend to the cab 13. With this configuration, every time an operator steps on the access step 14, a downward force equivalent to the operator's weight is transmitted to the restricting member 50. As a result, the wheel stopper 20 is firmly sandwiched between the side surface 10c and the first connecting portion 44, and the wheel stopper 20 can be supported more stably.

[0034] [Third embodiment] Next, a support mechanism of a third embodiment will be described. Fig. 8 is a perspective view showing the support mechanism of the third embodiment. Fig. 9 is a vertical cross-sectional view showing the support mechanism of the third embodiment. In the support mechanism 30C of the third embodiment, a support hole 49 is formed in the support member 40 instead of the groove 48. The support hole 49 is formed in the support plate 43 and the second side plate portion 42 so as to face each other. Note that the illustration of the support hole 49 in the second side plate portion 42 is omitted in the drawings.

[0035] The support mechanism 30C includes a restricting member 70 instead of the restricting member 50. The restricting member 70 includes a shaft-shaped portion 71 and a restricting portion 72 extending from the shaft-shaped portion 71. Both ends of the shaft-shaped portion 71 are rotatably supported by the second side plate portion 42 and the support hole 49 of the support plate 43. Similarly to the restricting member 50 of the first embodiment, anti-fall-out members 52, 53 are attached to both ends of the shaft-shaped portion 71 (the anti-fall-out member 52 is not shown). The restricting portion 72 is a U-shaped portion extending in a direction perpendicular to the shaft-shaped portion 71.

[0036] With this configuration, when the operator is not applying force to the regulating member 70, the regulating portion 72 is located below the shaft-shaped portion 71 as shown in FIG. 9. At this time, the regulating member 70 is configured such that the regulating portion 72 is located near and above the weight abutting portion 24a of the wheel stopper 20 supported by the support member 40. As a result, the wheel stopper 20 is restricted from moving upward from the position where it abuts against the regulating portion 72. That is, the state shown in FIG. 9 is a state in which the regulating member 70 is positioned at the regulating position P1. On the other hand, when the operator rotates the regulating member 70 as shown by the solid arrow in the figure, the regulating portion 72 moves in a direction away from the wheel stopper 20. As a result, the regulating member 70 enters a non-restrictive state in which it does not restrict the upward movement of the wheel stopper 20, and the operator can insert or remove the wheel stopper 20 from the support member 40.

[0037] As described above, the restricting member 70 of the third embodiment includes the shaft-shaped portion 71 rotatably supported by the support member 40, and the restricting portion 72 extending in a direction perpendicular to the shaft-shaped portion 71, and the restricting portion 72 moves between the restricting position P1 and the non-restricting position P2 as the shaft-shaped portion 71 rotates. With this configuration, it is possible to switch between a state in which the upward movement of the wheel stopper 20 is restricted and a state in which it is not restricted, simply by rotating the restricting member 70. Therefore, similar to the first embodiment, the wheel stopper 20 can be stably supported and easily inserted and removed.

[0038] Although the description of the embodiment is finished above, the aspect of the present invention is not limited to this embodiment. For example, the support mechanisms 30A, 30B, and 30C shown in the first to third embodiments may be applied not only to the vibratory roller 1 but also to other working machines equipped with wheels, such as a wheeled hydraulic excavator and a wheel loader. In addition, the support mechanisms 30A, 30B, and 30C may be attached to any position of the vehicle body 10, not limited to the side surface 10c of the rear vehicle body 10b.

[0039] In the first embodiment, the groove 48 is provided with the notch 483 to hold the restricting member 50 at the non-restricting position P2, but the holding mechanism for holding the restricting member 50 may be another mechanism. For example, the holding mechanism may hold the restricting member 50 by pin-connecting the first side plate portion 41 and the fall-off prevention member 52, and the second side plate portion 42 and the fall-off prevention member 53.

[0040] In addition, in the second embodiment, the auxiliary portion 63 of the auxiliary member 60 abuts against one end 20a of the wheel stopper 20, but the auxiliary portion 63 may abut against any of the lower ends of the wheel stopper 20, and for example, a separate abutment portion that abuts against the auxiliary portion 63 may be provided at the lower end of the wheel stopper 20.

[0041] In the second embodiment, the step mounting portion 64 of the auxiliary member 60 may be omitted, and the lifting step 14 may be attached to the first connecting portion 44 as in the first embodiment. In the second embodiment, the step mounting portion 64 for mounting the lifting step 14 may be provided on the auxiliary member 60, while the auxiliary portion 63 may be omitted from the auxiliary member 60.

[0042] In addition, in the third embodiment, when the regulating portion 72 of the regulating member 70 is in the regulating position P1, the regulating portion 72 does not abut against the wheel stopper 20. However, if the regulating portion 72 can be rotated, it is preferable to configure the regulating portion 72 in the regulating position P1 to abut against the wheel stopper 20. [Explanation of symbols]

[0043] 1. Vibration roller (working machine) 10. Body 10a Front body 10b Rear body 10c side 11 Front wheel (wheel) 12 Rear wheel (wheel) 13. Cab 14 Steps for lifting 20 Wheel chock 20a one end 20b Other end 21 Placement surface 22 Top side 23 Curved Surface 24 Weight contact surface 24a Weight contact part 30A,30B,30C Support mechanism 40 Support member 41 First side plate part 42 Second side plate part 43 Support plate 44 1st connection part 45 2nd connection part 46 Third connection part 48 Groove 49 Support hole 50, 70 Regulatory member 52, 53 Fall prevention member 55 Gripping part 60 Auxiliary Materials 61, 62 Legs 63 Auxiliary part 64 Step mounting part 71 Shaft 72 Regulatory Department 481 First Groove 482 Second Groove 483 Notch (retention mechanism)

Claims

1. A work machine including a vehicle body, wheels provided on the vehicle body, and a support mechanism provided on the vehicle body and supporting a wheel stopper that prevents rotation of the wheels when the vehicle body is parked, The support mechanism includes: A support member that supports the wheel stopper by clamping it from above so that the wheel stopper can be inserted and removed; a restricting member that is movable between a restricting position that restricts the upward movement of the wheel stopper supported by the support member and a non-restricting position that does not restrict the upward movement of the wheel stopper; A work machine comprising:

2. The support member supports the wedge-shaped portion of the wheel stopper by clamping it from above so as to be insertable and removable, the regulating member is a weight member that presses the wheel stopper downward at the regulating position, 2. The work machine according to claim 1, wherein the support member is formed with a groove that allows the regulating member to move vertically between the regulating position and the non-regulating position.

3. 3. The work machine according to claim 2, wherein the support member includes a holding mechanism that holds the regulating member at the non-regulating position above the groove.

4. 3. The work machine according to claim 2, wherein the support mechanism further comprises an auxiliary member attached to the regulating member and adapted to abut against a lower end of the wheel stopper supported by the support member.

5. The support member is disposed below a driver's cab provided in the vehicle body, 5. The work machine according to claim 2, wherein the regulating member is provided with an access step for an operator to ascend and descend to the operator's cab.

6. The work machine according to claim 1, characterized in that the regulating member includes a shaft-shaped portion rotatably supported by the support member and a regulating portion extending in a direction perpendicular to the shaft-shaped portion, and the regulating portion moves between the regulating position and the non-regulating position as the shaft-shaped portion rotates.

7. 2. The work machine according to claim 1, wherein the regulating member includes a grip portion that is gripped by an operator.

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