Wheel stopper storage structure and construction machinery

Abstract

To provide a wheel stopper storage structure capable of preferably preserving a space for use in storing a wheel stopper, and a construction machine.SOLUTION: A storage 13 capable of storing a wheel stopper 12 is located at a position outside in a radial direction of a wheel 6a within a tire house 8 incorporated in a vehicle body 2 to enclose the wheel 6a and obliquely above a shaft. The position where the storage 13 is located may be a position on the tire house 8 of the wheel 6a on a side, on which an entrance door 10 of a cab 9, out of the left and right sides of the vehicle body 2 is formed.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a structure for storing wheel chocks used on the wheels of a construction machine, and to a construction machine equipped with the same. [Background technology]

[0002] In construction machinery such as cranes, wheel chocks are used to prevent the vehicle from moving unexpectedly when stopped. For example, in the case of a crane, after the vehicle is stopped at a work site, outriggers are extended from the vehicle body to carry materials or perform other work. At this time, wheel chocks are installed in front of and behind some of the wheels to prevent the wheels from rotating and the vehicle body from moving forward or backward between the time the vehicle is stopped and the time the outriggers are set up.

[0003] Of course, such wheel chocks are not used when the vehicle is traveling, so they need to be stored in an appropriate location on the vehicle. The location where the wheel chocks are stored varies depending on the type, specifications, model, etc. of the construction machine. For example, in a large vehicle with ample space between the front and rear wheels, the wheel chocks may be stored in a storage box provided in a part of the space between the wheels on the vehicle body. On the other hand, in a relatively small vehicle where it is difficult to secure the space to install such a storage box, a sheath-shaped structure for storing the wheel chocks is often provided on the upper rear surface of the mat guard provided behind the rear wheels.

[0004] Incidentally, examples of prior art documents that describe matters relating to storage of wheel chocks in construction machinery include the following Patent Documents 1 and 2. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2006-117016 A [Patent Document 2] JP 2003-312455 A Summary of the Invention [Problem to be solved by the invention]

[0006] Such wheel chocks are necessary tools especially for construction machines, but on the other hand, they require a certain size for the wheels and are bulky objects with a special shape (approximately triangular prism shape), so it may be difficult to secure an appropriate space to store the wheel chocks when not in use, depending on the type and specifications of the construction machine. For example, in a vehicle such as a general transport truck, the space in which some objects can be stored is designed to be large for its purpose, so even if the wheel chocks are somewhat bulky, there is no problem in securing the space for storage. However, in the case of construction machines such as a crane truck, the crane and the equipment for operating it are installed in various places on the vehicle body, and most of the space on the vehicle body is taken up by these equipment, so there may be little space to store objects such as wheel chocks. In particular, the difficulty of securing the space for such storage is remarkable in relatively small construction machines.

[0007] Therefore, as described above, construction machinery often employs a structure in which wheel chocks are stored in the upper rear portion of the rear wheel mat guard (the wheels are stored in a similar position in the vehicles described in Patent Documents 1 and 2). However, this position is far from the driver's seat, which is installed in the front of the vehicle body. If the wheel chocks are stored in such a position, the operator must move back and forth between the front and rear of the vehicle body when using or setting up the wheel chocks, which is inconvenient. Thus, construction machinery has had the problem that it is difficult to store the wheel chocks, which are bulky objects, in an appropriate position.

[0008] In view of the above circumstances, the present invention aims to provide a storage structure for wheel chocks and a construction machine that can appropriately secure a space for storing wheel chocks. [Means for solving the problem]

[0009] The present invention relates to a tire housing provided on a vehicle body so as to surround a wheel, the tire housing being located outside the wheel in the radial direction of the wheel and obliquely above the wheel axis. A storage structure for a wheel stopper, A storage section capable of storing wheel chocks is provided on the left or right side of the vehicle body where the driver's cab entrance door is provided, the storage section includes a ceiling section extending along a horizontal plane and forming an upper surface, a slope section forming an inclined surface facing the wheels, and a side section forming a vertical surface at a rear portion of the storage section, and the surface located on the outer side in the left-right direction of the vehicle is configured as an opening; a part of the lower edge of the opening protrudes upward from the periphery of the opening toward the center to form a protrusion; The wheel stopper in the storage section is restricted from moving outward from the opening, and the wheel stopper is prevented from jumping out of the storage section. thing This relates to a storage structure for a wheel stopper, characterized by the above.

[0010] In the wheel stopper storage structure of the present invention, The tire house includes a vehicle body frame extending along the front-rear direction of the vehicle and a fender extending outward in the left-right direction of the vehicle. This is also fine.

[0011] In the wheel stopper storage structure of the present invention, The storage section is formed with an opening hole in the fender behind the wheel. This is also fine.

[0012] The present invention also relates to a construction machine to which the above-mentioned wheel stopper storage structure is applied. Effect of the Invention

[0013] According to the wheel chock storage structure and construction machine of the present invention, it is possible to obtain the excellent effect of preferably securing space for storing the wheel chock. [Brief description of the drawings]

[0014] [Figure 1] 1 is a side view showing an example of an overall image of a construction machine to which the present invention is applicable. [Diagram 2] FIG. 13 is a perspective view showing an example of a configuration of a wheel stopper. [Diagram 3] 2 is a perspective view showing a storage structure for a wheel stopper and its surroundings in the construction machine of FIG. 1. FIG. [Figure 4] 4 is a perspective view of the wheel stopper storage structure of FIG. 3 as seen from a different angle. [Diagram 5] 11 is a perspective view showing a state in which the wheel stopper is stored in the wheel stopper storage structure. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0016] 1 shows an example of a construction machine to which a wheel stopper storage structure according to the present invention is applied. Note that a crane truck is assumed as the construction machine.

[0017] As shown in Fig. 1, a crane vehicle 1 serving as a construction machine is provided with a boom 4 attached to the top of a vehicle body 2 via a swivel base 3. The boom 4 is supported at its base so as to be rotatable about a horizontal axis relative to the swivel base 3, and is adapted to perform a hoisting operation relative to the swivel base 3 by extension and retraction of a hydraulic hoisting cylinder (not shown). The boom 4 has a structure in which multiple cylinders are connected in a telescopic fashion, and is configured to be extendable and retractable by a hydraulic mechanism (not shown).

[0018] Wheels (front wheels 6a and rear wheels 6b) are provided at the front and rear of the vehicle body 2, and each wheel 6a, 6b is surrounded by a wheel housing 8 formed by the frame of the vehicle body 2 extending along the fore-and-aft direction of the vehicle and a fender 7 hanging down outward in the left-right direction of the vehicle body 2.

[0019] A driver's cab 9 is provided on top of the vehicle body 2, and an entrance door 10 is provided on one side of the driver's cab 9 in the left-right direction (the right side in the example shown here; the front side in the plane of FIG. 1). The entrance door 10 is located between the front wheels 6a and the rear wheels 6b in the front-to-rear direction of the vehicle. Below the entrance door 10, which is located at a position higher than the wheels 6a, 6b, multiple steps 11 are provided so that an operator can ascend and descend to the driver's cab 9 by stepping on the steps 11.

[0020] In the case of the crane vehicle 1 shown here, the front wheel 6a of the wheels 6a, 6b is assumed to be the driving wheel, and a wheel stopper 12 is used for the driving wheel 6a as shown in FIG. 1 if necessary.

[0021] The wheel stopper 12 is an approximately triangular prism-shaped object having a ground contact surface 12a that contacts the ground when in use and a wheel contact surface 12b that contacts the wheel 6a when in use, as shown in FIG. 2, on its side. The ground contact surface 12a is formed flat as a whole so that it will contact the flat ground, and is shaped like a sawtooth to increase friction with the ground. The wheel contact surface 12b is formed like a concave cylindrical surface so that it will contact the wheel 6a. When in use, the pair of wheel stoppers 12 are installed in front and behind the wheel 6a with the ground contact surface 12a facing downward and the acute angle portion 12c between the ground contact surface 12a and the wheel contact surface 12b being inserted between the wheel 6a and the ground (see FIG. 1). In this way, the wheel (front wheel) 6a, which is the drive wheel, is restrained from rolling forward and backward.

[0022] Such wheel chocks 12 need to be stored somewhere on the crane vehicle 1 when not in use, such as when the crane vehicle 1 is traveling. In this embodiment, a storage section 13, which is a structure for storing the wheel chocks 12, is provided in the wheel house 8 on the front wheel 6a side, diagonally above and behind the front wheel 6a (upper left in FIG. 1).

[0023] The installation position and form of the storage section 13 will be described. In this embodiment, it is assumed that the access door 10 of the cab 9 is installed on the right side of the vehicle as described above, and the drive wheels are the front wheels 6a. In such a crane vehicle 1, the storage section 13 is provided on the side (right side) where the access door 10 of the cab 9 is provided, out of the left and right sides of the vehicle body 2, and is provided in the tire house 8 of the front wheel 6a on which the wheel stopper 12 is to be installed. The installation position of the storage section 13 in the tire house 8 of the front wheel 6a is the side (rear side) closer to the access door 10 in the front-rear direction of the vehicle.

[0024] The configuration of the storage section 13 is shown in Figures 3 and 4. In general, in a tire house that stores a wheel, a triangular space in a side view is present in an area that is radially outward of the wheel and diagonally upward with respect to the axis of the wheel, the space being surrounded by components of the vehicle body extending lengthwise and widthwise and the circumferential surface of the wheel. The storage section 13 in this embodiment is a box-shaped member that is approximately a triangular prism as a whole and is provided in such a space, and is used by storing a wheel stopper 12 inside as shown in Figure 5.

[0025] The storage section 13, which is provided at a position on the outside in the radial direction of the wheel 6a and diagonally upward and rearward with respect to the axis of the wheel 6a, has a triangular internal space in a side view, surrounded by a ceiling section 13a extending along a horizontal plane and forming an upper surface, a slope section 13b forming an oblique surface facing the wheel 6a, and a side section 13c forming a vertical surface at the rear of the storage section 13 with respect to the vehicle. When viewed from the outside in the left-right direction of the vehicle (the right side in this embodiment; the front side with respect to the paper surface of FIG. 1), the front side surface of the storage section 13 is configured as an approximately triangular opening 13d, and the rear side is closed by a rear surface section 13e forming a vertical surface. The opening 13d is provided at the position of the fender 7 provided on the outside in the left-right direction of the vehicle.

[0026] In other words, among the components of the tire house 8, the fender 7 behind the wheel 6a has a hole formed therein that corresponds to the opening 13d of the storage section 13, and the storage space formed by the storage section 13 extends from here inward in the left-right direction of the vehicle.

[0027] A pair of wheel chocks 12 are stored inside the storage section 13 thus formed, as shown in Fig. 5. The orientation and posture of the wheel chocks 12 relative to the storage section 13 may be any as long as the wheel chocks 12 can be stored suitably, but for example, as shown here, the two wheel chocks 12 may be stored side by side in the left-right direction of the vehicle with the acute angle portion 12c facing downward and positioned between the slope portion 13b and the side portion 13c. In this way, the storage section 13 of this embodiment has a simple structure and can store the wheel chocks 12 suitably in the space within the tire house 8.

[0028] In the present embodiment, the wheel stopper 12 is provided with a protruding portion 13f as a structure for retaining the wheel stopper 12 in the storage portion 13 when the wheel stopper 12 is stored in the storage portion 13. The lower edge of the member of the fender 7 that forms the edge of the opening 13d is protruding upward from the periphery of the opening 13d toward the center to form the protruding portion 13f (see FIG. 4; in FIG. 4, the outline of the storage portion 13 located at the back side of the fender 7 is shown by a broken line, and the protruding portion 13f provided on the lower edge of the opening 13d protrudes upward from the lower edge of the opening 13d shown by the broken line). For example, even if the wheel stopper 12 in the storage portion 13 moves toward the opening 13d due to vibrations or the like caused by the travel of the crane vehicle 1, the presence of the protruding portion 13f on the lower edge of the opening 13d prevents the wheel stopper 12 from moving beyond the opening 13d to the outside in the left-right direction of the vehicle, and prevents the wheel stopper 12 from jumping out of the storage portion 13. Here, the protrusion 13f is provided on the lower edge of the opening 13d, but when providing a storage section in which the storage space extends inward in the left-right direction of the vehicle as in the example shown here, the protrusion for preventing the wheel stopper from jumping out may be provided on a portion other than the lower edge of the opening, for example, on the entire periphery of the opening. However, in order to effectively prevent the wheel stopper from jumping out, it is preferable to provide the protrusion on at least the lower edge of the opening.

[0029] The above is the storage structure of the wheel chock 12 in this embodiment. There are several advantages to providing the storage section 13 for storing the wheel chock 12 in a position in the vehicle as in this embodiment. First, the shape and dimensions of the space surrounded by the components of the vehicle body 2 and the wheels 6a present in the upper part of the wheel housing 8 are suitable for storing the wheel chock 12.

[0030] As described above, the wheel stopper 12 is a bulky object having a certain size and a substantially triangular prism shape. On the other hand, the space above the wheel well 8 has a special shape that is triangular in side view and is adjacent to the wheel 6a, so it is not suitable for storing general equipment, materials, etc., and tends to become a dead space with no use.

[0031] Here, below the space in the upper part of the wheel well 8, there is a space of approximately the same shape as the space, sandwiched between the ground and the wheel 6a, so as to be symmetrical to the space. The wheel chock 12 is an item that is placed in the space below it and used. That is, the wheel chock 12 is formed as an object with a shape and dimensions that fit exactly into the space of the same shape as the space in the upper part of the wheel well 8, due to its use. Therefore, the space in the upper part of the wheel well 8 is naturally suitable for the purpose of storing the wheel chock 12. By storing the wheel chock 12, which is a bulky object, in the space that tends to become dead space, it is possible to effectively utilize space in a construction machine (crane truck 1) that is equipped with various large and small devices and in which the space for installing and storing the devices is often limited.

[0032] Furthermore, by providing the storage section 13 at the position of the wheel house 8 in this manner, the wheel chock 12 is stored near the wheel 6a for which the wheel chock 12 is to be installed when in use, which is convenient for installing and storing the wheel chock 12. For example, as in the conventional method (see Patent Documents 1 and 2), it is not necessary to go to the rear of the vehicle where the wheel chock is stored after stopping the vehicle, take out the wheel chock, and then move to the position of the wheel to install the wheel chock; instead, after getting out of the driver's cab 9, the driver can directly move to the position of the front wheel 6a for which the wheel chock 12 is to be installed, and take out the wheel chock 12 from the storage section 13 and install it there.

[0033] Here, in this embodiment, since the storage section 13 is provided on the same side (right side) as the entrance door 10 with respect to the left and right of the vehicle, there is no need to move left and right of the vehicle when installing or storing the wheel chock 12. Entering and exiting the driver's cab 9 and installing and storing the wheel chock 12 can be performed on the same left and right side of the vehicle.

[0034] In order to reliably prevent the vehicle from moving, it is preferable that the wheels on which the wheel chocks 12 are installed are drive wheels, and in this embodiment, in consideration of this point, a storage section 13 is provided in the tire housing 8 of the front wheels 6a, which are drive wheels. Therefore, it is not necessary to take out the wheel chock from a storage section provided in the tire housing of a wheel that is not a drive wheel, move it to the position of the drive wheel, and install the wheel chock there, and the installation and storage work of the wheel chocks 12 is made easier.

[0035] Moreover, in this embodiment, the storage unit 13 is disposed on the side closer to the entrance door 10 than the wheels 6a, which are the targets (drive wheels) for which the storage unit 13 is to be installed (in this embodiment, the entrance door 10 is provided behind the front wheels 6a, which are the drive wheels, so the storage unit 13 is disposed behind the front wheels 6a). This makes it easier to access the storage unit 13 from the cab 9, and further simplifies the work of installing and storing the wheel chocks 12.

[0036] The suitable location of the storage unit may vary depending on the configuration of the vehicle. For example, if the driver's cab door is on the left side of the vehicle, the storage unit may be provided in the left wheel house of the vehicle, and if the drive wheels are rear wheels, the storage unit may be provided in the rear wheel house. Also, if the driver's cab door is located forward of the drive wheels on which the wheel chocks are to be installed, the storage unit may be provided in front of the drive wheels.

[0037] In addition, the present invention has been described assuming a crane truck as an application target, but the type of construction machine to which the present invention is applied is not limited to this. The present invention can be applied to various construction machines as long as they are equipped with wheels and require the storage of wheel chocks. The storage unit has also been described using a box-shaped form as an example, but the storage unit may be configured as a sheath-shaped member into which the wheel chocks are inserted, for example. As long as the storage unit can be installed in the space above the wheel house as described above and has a structure that can suitably store the wheel chocks, various structures can be adopted for the storage unit. In addition, as for the wheel chocks, wheel chocks of other suitable forms than those described above can be used as long as they function as wheel chocks and can be stored in the storage unit provided in the space above the wheel house.

[0038] As described above, the storage structure for wheel chocks in this embodiment is configured by providing the storage section 13 capable of storing the wheel chocks 12 at a position outside the wheel 6a in the radial direction and obliquely above the axis in the wheel house 8 provided in the vehicle body 2 so as to surround the wheel 6a. In this way, the wheel chocks 12 can be stored in the space above the wheel house 8, which tends to become dead space, thereby making effective use of the space.

[0039] In the wheel chock storage structure of this embodiment, a storage section 13 is provided in the wheel housing 8 of the wheel 6a located on the side of the left and right of the vehicle body 2 where the entrance door 10 of the driver's cab 9 is provided. In this way, when installing or storing the wheel chock 12, there is no need to move between the left and right sides of the vehicle, and entering and exiting the driver's cab 9 and installing and storing the wheel chock 12 can be performed on the same left and right side of the vehicle.

[0040] In the wheel stopper storage structure of this embodiment, the storage section 13 has a storage space extending inward from an opening 13d provided on the outer side in the left-right direction of the vehicle body 2. In this way, the wheel stopper 12 can be suitably stored in the space within the tire house 8 with a simple structure.

[0041] Furthermore, in this embodiment, the above-mentioned wheel stopper storage structure is applied to the construction machine (crane vehicle) 1, so that the construction machine 1 can achieve the same effects as those described above.

[0042] Therefore, according to the present embodiment, a space for storing the wheel stopper can be suitably secured.

[0043] Incidentally, the wheel stopper storage structure and construction machine of the present invention are not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the spirit and scope of the present invention. [Explanation of symbols]

[0044] 1. Construction machinery (crane truck) 6a Wheel (front wheel) 8 Tire House 9. Cab 10 Entrance door 12 Wheel chock 13 Storage area 13d opening

Claims

1. A storage structure for a wheel stopper, the wheel stopper being located outside in a radial direction of a wheel and obliquely above an axis of the wheel stopper, in a wheel house provided on a vehicle body so as to surround the wheel stopper, A storage section capable of storing wheel chocks is provided on the left or right side of the vehicle body where the driver's cab entrance door is provided, the storage section includes a ceiling section extending along a horizontal plane and forming an upper surface, a slope section forming an inclined surface facing the wheels, and a side section forming a vertical surface at a rear portion of the storage section, and the surface located on the outer side in the left-right direction of the vehicle is configured as an opening; a part of the lower edge of the opening protrudes upward from the periphery of the opening toward the center to form a protrusion; The wheel stopper in the storage section is restricted from moving outward from the opening, and the wheel stopper is prevented from jumping out of the storage section. A wheel stopper storage structure characterized by the above.

2. The tire house includes a frame of a vehicle body extending along the front-rear direction of the vehicle and a fender hanging down outward in the left-right direction of the vehicle.

2. The wheel stopper storage structure according to claim 1.

3. The storage section has an opening formed in the fender behind the wheel. The wheel stopper storage structure according to claim 2 .

4. A construction machine comprising the wheel stopper storage structure according to any one of claims 1 to 3.

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