JP2012112178A - Front console for work vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of components of frame of a front console to simplify the structure and reduce the weight.SOLUTION: A front console (9) for a work vehicle includes a frame (10) that is disposed at the front in an operator cab (3) and supports various electric components including a monitor and a decorative cover (13) that covers the various electric components. In the front console (9), the frame (10) comprises a frame-shaped structure formed by bending a pipe member.

Description

  The present invention relates to a front console disposed in front of a cab of a work vehicle.

  A steering wheel is mounted in front of the cab of a work vehicle such as a wheel loader, and a front console equipped with various electrical components such as a monitor and switches is generally installed in front of the steering wheel. (For example, Patent Document 1). These various electrical components are usually supported by a frame provided inside the front console.

JP 2001-26947 A

  However, in the above conventional technique, since a frame assembled by welding or bolting a steel plate is used, there is a problem that the number of parts for assembling the frame increases, and it takes time to assemble. In addition, there is a problem that a thick steel plate is used to increase rigidity or a rib or the like is required for reinforcement, which increases the weight of the frame and resonates with vibration of the work vehicle. . In addition, in order to prevent the harness of the electrical component from being damaged, the harness has to be fixed to the frame while avoiding the edge portion of the steel plate, and there is a problem that the wiring of the harness takes time.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to reduce the number of parts of the frame of the front console to make a simple structure and to reduce the weight. It is another object of the present invention to provide a front console capable of facilitating wiring of a harness.

  In order to achieve the above object, the present invention provides a front console for a work vehicle that includes a frame that is disposed in front of a driver's cab and supports various electrical components including a monitor, and a decorative cover that covers the various electrical components. The frame is characterized by comprising a frame-like structure formed by bending a pipe member.

  According to the present invention configured as described above, since the frame is a frame-like structure formed by bending a pipe member, the number of parts can be reduced compared to a steel plate, and the structure can be simplified. Moreover, since the pipe member is bent (that is, bent), the rigidity is higher and the weight can be reduced as compared with the case where the steel plate is assembled by welding or bolt fastening. The fact that the weight can be reduced makes it difficult to resonate with the vibration of the work vehicle, and thus chattering noise associated with the vibration can be prevented. Furthermore, since the pipe member has very few edge portions like a steel plate, there is no fear of damaging the harness, and the wiring of the harness becomes easy.

  In the present invention, the present invention is characterized in that an inner peripheral wall of the decorative cover is supported by the frame. The present invention configured as described above can prevent deformation and vibration of the decorative cover.

  According to the present invention, in the above invention, the frame includes a first arm member having a first support bar extending linearly and a pair of first leg portions formed at both ends of the first support bar. And a second arm member having a second support bar extending linearly and a pair of second leg portions formed at both ends of the second support bar, and the first support bar or the first 2 The first leg and the second leg are connected so that the side view of the support bar is substantially U-shaped, and an air-conditioning duct is disposed in the inner space bent into a substantially U-shape. In addition, the duct is supported by the frame. In the present invention configured as described above, since the air conditioning duct can be accommodated without waste in a space bent in a substantially U shape, the front console can be made compact.

  According to the present invention, by adopting a frame having a structure in which a pipe member is bent, the number of parts can be reduced to make a simple structure, and the weight can be reduced. Furthermore, the present invention has an excellent effect that the wiring of the harness can be facilitated.

It is a side view which shows the wheel loader which is one Embodiment of the work vehicle to which the front console which concerns on this invention is attached. It is a disassembled perspective view of the front console which concerns on this invention attached to the cab of the wheel loader shown in FIG. It is an external appearance perspective view of the state which removed the decorative cover and air-conditioning duct of the front console shown in FIG. It is an external appearance perspective view of the state which removed the decorative cover with the air conditioning duct of the front console shown in FIG. 2 attached. It is the external appearance perspective view which looked at the front console shown in FIG. 4 from the front side. (A) is an external appearance perspective view of the frame of the front console shown in FIG. 2, (b) is a side view in the side view B of FIG. 6 (a).

  Embodiments of the present invention will be described below with reference to the drawings. First, a wheel loader to which a front console according to an embodiment of the present invention is attached will be described. As shown in FIG. 1, a wheel loader (work vehicle) 1 includes a main body 2 provided with a driver's cab 3, front wheels 4 and rear wheels 5, and a front work machine 6 provided at the front of the main body 2. I have. The front work machine 6 includes a boom 7 that is rotatably connected to the main body 2 in the vertical direction, and a bucket 8 that is rotatably connected to the boom 7. The boom 7 is driven by expansion and contraction of a boom cylinder 7a in which a bottom end and a rod end are rotatably connected to the main body 2 and the boom 7, respectively. The bucket 8 is driven by expansion and contraction of a bucket cylinder 8a whose end on the bottom side is rotatably connected to the boom 7 and whose end on the rod side is connected to the bucket 8 via a link mechanism 8b. ing.

  The cab 3 has a box shape surrounded by walls, and a front console 9 is attached to the front as shown in FIG. The front console 9 is arranged above the steering column 20 that supports a steering (not shown) and in front of the steering in a state in which various electrical components including a monitor are installed. Next, details of the front console 9 will be described with reference to FIGS. 2 to 6. In order to illustrate the structure of the front console 9 in an easy-to-understand manner, FIGS. 2 to 6 include a monitor mounted on the front console 9. The illustration of various electrical components and harnesses is omitted.

  As shown in FIG. 2, the front console 9 includes a frame 10 and a decorative cover 13. After attaching various electrical components including a monitor to the frame 10, the front console 9 is covered with the decorative cover 13. The front console 9 is assembled.

As shown in FIG. 6, the frame 10 is a frame-like structure formed by connecting two arm members, a first arm member 11 and a second arm member 12. 5 and 6, the first arm member 11 is composed of a single pipe member, and the first support bar 11 a extending linearly and both end sides of the first support bar 11 a are each in a plan view A. Formed at both ends by bending toward the bottom in a side view B while expanding in the depth direction (forward direction in FIG. 5) to form a “shape” (see FIG. 6B). It consists of a pair of 1st leg parts 11b and 11c. Like the first arm member 11, the second arm member 12 is composed of a single pipe member, and the second support bar 12a extending linearly and both end sides of the second support bar 12a are in the depth direction in plan view A, respectively. It is bent in the forward direction (in FIG. 5) to form a “U” shape, and includes a pair of second leg portions 12b and 12c formed at both ends.
Since FIG. 6 is a perspective view, the left and right sides appear asymmetric, but are formed symmetrically as shown in FIG.

  In the state where the end surfaces of the first leg portions 11b and 11c of the first arm member 11 are in contact with the outer peripheral surfaces of the distal end portions of the second leg portions 12b and 12c of the second arm member 12, respectively. The first arm member 11 and the second arm member 12 are integrated via the bracket 17 by welding the leg portions 11b and 11c and the second leg portions 12b and 12c to the bracket 17, respectively. Is formed. Here, since the first leg portions 11b and 11c are slightly bent in the shape of a "<", when the first arm member 11 and the second arm member 12 are connected, they are shown in FIG. Thus, in the side view B, the first leg portion 11b of the first arm member 11 and the second leg portion 12b of the second arm member 12 have a U-shaped shape.

  As shown in FIG. 3 or FIG. 4, a support plate 16 for supporting the monitor is attached to the frame 10 so as to bridge the first support bar 11a and the second support bar 12a. As shown in FIG. 6B, an air conditioning duct as shown by an imaginary line D is formed in a space formed below the support plate 16 and bent in a U-shape of the frame 10. 14 is attached. In other words, the air conditioning duct 14 is housed inside the frame 10 and is covered with the support plate 16. The frame 10 is provided with two support pieces each having a screw hole 15 for fixing the decorative cover 13 described below on the first support bar 11a and the second support bar 12a (four places in total). It has been.

  As shown in FIG. 2, the decorative cover 13 is provided with a plurality of openings 13 b for fitting switches on the side portions, and a monitor opening 13 a that allows a monitor to be visually recognized at the center portion. Further, holes 13 d for screwing the decorative cover 13 to the frame 10 are provided at the four corners of the decorative cover 13.

  When the decorative cover 13 is put on the frame 10, the inner peripheral wall 13c of the decorative cover 13 follows the shapes of the first support bar 11a and the second support bar 12a. Therefore, when the decorative cover 13 is screwed and fixed to the screw hole 15 of the support piece provided on the frame 10, the support bars 11a and 12a serve as reinforcing members of the decorative cover 13, and the decorative cover 13 is deformed or vibrated. To prevent it.

  As described above, according to the front console 9 according to the present embodiment, since the frame 10 forms a frame-like structure formed by bending a pipe member, compared to a structure using a steel plate. Since the rigidity is high, the number of parts can be reduced and the weight can be reduced. Moreover, since the frame 10 has a shape along the inner peripheral wall 13 c of the decorative cover 13, if the decorative cover 13 is fixed to the frame 10, the frame 10 functions as a reinforcing member for the decorative cover 13. Therefore, it is prevented that the decorative cover 13 resonates with the vibration of the wheel loader 1, and the chatter noise caused by the vibration is eliminated. In addition, since the outer surface of the frame 10 is almost curved, there is no fear of damaging the harness, so that an excellent effect is achieved that the wiring of the harness does not take time. Furthermore, since the air conditioning duct 14 is disposed in the inner space of the frame 10 that is bent into a U shape, the front console 9 can be made compact.

  Needless to say, the configuration of the frame 10 and the decorative cover 13 described above can also be applied to a side console.

1 Wheel loader (work vehicle)
3 cab 9 front console 10 frame 11 first arm member 11a first support bar 11b, 11c first leg 12 second arm member 12a second support bar 12b, 12c second leg 13 decorative cover 13c inner peripheral wall 14 air conditioning Duct

Claims (3)

In a front console of a work vehicle including a frame that is arranged in front of the cab and supports various electrical components including a monitor, and a decorative cover that covers the various electrical components,
The said console consists of a frame-shaped structure formed by bending a pipe member, The front console of the working vehicle characterized by the above-mentioned.   The front console of the work vehicle according to claim 1, wherein an inner peripheral wall of the decorative cover is supported by the frame.   3. The first arm member according to claim 1, wherein the frame includes a first support bar extending linearly and a pair of first leg portions formed at both ends of the first support bar. And a second arm member having a second support bar extending linearly and a pair of second leg portions formed at both ends of the second support bar, and the first support bar or the first 2 The first leg and the second leg are connected so that the side view of the support bar is substantially U-shaped, and an air-conditioning duct is disposed in the inner space bent into a substantially U-shape. And the duct is supported by the frame.

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