JP6381928B2 - Forestry machinery - Google Patents

Description

  The present disclosure relates to a forestry machine including an external illumination light.

  There is known a construction machine in which an external illumination light is mounted in front of an upper part of a cabin (see, for example, Patent Document 1). The construction machine disclosed in Patent Document 1 includes a light protection member in order to protect the external illumination light from rainwater. This prevents rainwater from entering and ensures water resistance.

JP 2004-114850 A

  However, when the construction machine having the above configuration is applied to a construction machine for forestry (hereinafter referred to as “forestry machine”), a problem may occur. That is, in the configuration disclosed in Patent Document 1, even if the external illumination light can be protected from rainwater, if a log or a branch falls, the external illumination light may be damaged by the collision. There is.

  A construction machine such as an excavator is provided with a protective member (guard member) in front of the cabin in order to protect a collision caused by a fallen object such as a dismantling member or crushed stone. However, in general, the guard member is set to a height that can cover the windshield. Therefore, unless the height of the guard member is increased, the external illumination light mounted in front of the upper part of the cabin cannot be protected from falling objects. Moreover, in forestry machines, there is a concern that the member cost will increase in order to increase the height of the guard member.

  In view of the above, it is desirable to provide a forestry machine that can protect external illumination light at low cost.

According to one aspect of the present disclosure, the cabin and, a guard member for protecting the front of the window portion of the cabin is mounted on an upper portion of the guard member, and an external illumination light you illuminate the front of the cabin, external A cover member that protects the illumination light and forms an opening in the illumination direction of the external illumination light, an angle adjustment mechanism that adjusts the angle of the cover member, and a rotation restriction member that regulates the rotation range of the cover member And the rotation restricting member is configured to prevent the rotation of the external illumination light within a predetermined angular displacement when the external illumination light is rotated downward from the front. Forestry machinery, which is characterized by regulation, is provided.

  According to the present disclosure, it is possible to provide a forestry machine that can protect an external illumination light at low cost.

It is a side view which shows the forestry machine which concerns on one Embodiment. FIG. 2 is an enlarged view of the vicinity of an external lighting device mounted on the forestry machine of FIG. It is a figure explaining the rotation control of the external illuminating device mounted in the forestry machine of FIG. It is the A section enlarged view of FIG.

  Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and the overlapping description may be abbreviate | omitted.

  FIG. 1 is a side view showing a forestry machine according to an embodiment. The configuration of the forestry machine according to the present embodiment will be described with reference to the drawings.

  An upper swing body 3 is mounted on a lower traveling body 1 of the forestry machine shown in FIG. A boom 4 is attached to the upper swing body 3. An arm 5 is attached to the tip of the boom 4, and a harvester link 6 is attached to the tip of the arm 5. The boom 4, the arm 5, and the harvester link 6 are hydraulically driven by a boom cylinder 7, an arm cylinder 8, and a harvester link cylinder 9, respectively. A harvester device 100 is attached to the tip of the harvester link 6. The upper swing body 3 is provided with a cabin 10 and is mounted with a power source such as an engine 11. The cabin 10 is provided with a driver's seat, and an operator operates the forestry machine while sitting on the driver's seat. A guard member 182 is attached to the front of the cabin 10 so as to cover the window portion (windshield). The guard member 182 can be opened and closed, and the guard member 182 is closed during the lumbering operation in order to protect the worker from falling objects such as logs and branches. A wiper (not shown) is attached to the front windshield. The wiper reciprocates on the outer surface of the windshield to wipe off raindrops and dirt adhering to the outer surface of the window portion. Note that an external illumination device 180 described later is mounted on the guard member 182.

  Next, the configuration of the external lighting device 180 according to the present embodiment will be described with reference to the drawings. FIG. 2 is an enlarged view of the vicinity of the external lighting device 180 mounted on the forestry machine according to one embodiment.

  The forestry machine is generally provided with an external illumination light that illuminates the surroundings of the work site outside the cabin 10 so that the worker's field of view can be secured even in the dark at night or in bad weather.

  The external illumination light is turned on by receiving power supply from a storage battery (not shown). The power supply from the storage battery is turned on when an electric signal is input to the external illumination light from a controller that controls the forestry machine, for example.

  The forestry machine according to the present embodiment is equipped with an external illumination device 180 including an external illumination light 181.

  Specifically, as shown in FIG. 2, the external illumination device 180 includes an external illumination light 181, a cover member 183 for protecting the external illumination light 181, and a bracket 185. The cover member 183 includes a front part 183a, an upper part 183b, and left and right side parts 183c so as to protect the front surface, upper surface, and left and right side surfaces of the external illumination light 181 from falling objects such as logs and branches. The cross section of the four surfaces is formed in a substantially U-shape. An opening 183d is formed in the front portion 183a of the cover member 183 so as not to block the illumination of the external illumination light 181. The opening 183d is partitioned by a lattice 183e arranged at a constant interval. The lattice 183e is provided in order to prevent the lens of the external illumination light 181 from being damaged from the collision of logs, branches, and the like. Note that the lattices 183e are arranged at intervals that do not affect the field of view of the operator due to a decrease in the illumination intensity of the external illumination light 181.

  The U-shaped width of the cover member 183 is formed to a width that can cover the external illumination light 181, and the cover member 183 is covered so that the front surface, the upper surface, and the left and right side surfaces of the external illumination light 181 are covered. The external illumination light 181 is housed in the U-shaped portion. In storing, the positions of holes (not shown) formed in the left and right side portions 183c of the cover member 183 are matched with the positions of screw holes (not shown) formed on both side surfaces of the external illumination light 181. Do by. Then, the external illumination light 181 is fixed to the cover member 183 by screwing the screw 184 into the screw hole. As a result, the external illumination light 181 can be appropriately protected from the collision of falling objects such as logs and branches.

  Furthermore, the external lighting device 180 has an angle adjustment mechanism that can adjust the angle in the vertical direction. As shown in FIGS. 2 and 3, the angle adjustment mechanism includes a U-shaped bracket 185 and a fixing screw 186. By rotating the cover member 183, the external illumination light 181 can be integrally rotated in the vertical direction, and the direction of the external illumination light 181 can be adjusted to a desired angle. Yes.

  Specifically, the left and right side portions 183c are connected to the end portions of the support portion 185a of the U-shaped bracket 185 by fixing screws 186 (two places). More specifically, the positions of the holes (not shown) formed in the end portion of the support portion 185a and the screw holes (not shown) formed in the side portion 183c of the cover member 183 are aligned. Next, the fixing screw 186 is screwed into the screw hole through the hole, and the cover member 183 is fixed to the bracket 185. When the fixing screws 186 on both sides are loosened, it becomes possible to adjust the angle (displacement) of the external illumination light 181 by rotating the external illumination light 181 in the vertical direction with the end portion of the support portion 185a as a fulcrum. Then, after the operator adjusts the direction of the external illumination light 181 to a desired direction, the fixing screw 186 is tightened to fix the external illumination light 181 in that direction.

  Then, the external lighting device 180 is mounted on the guard member 182 that protects the windshield in front of the cabin 10. The guard member 182 and the cover member 183 have durability for functioning as a guard against falling objects such as logs and branches.

  The number of external lighting devices 180 is not limited, but, for example, two each are mounted on both ends of the guard member 182 in total. The external lighting device 180 is configured as described above, and can be mounted on the guard member 182 that is already provided in front of the cabin 10 of a construction machine such as a forestry machine. Accordingly, it is not necessary to increase the height of the guard member 182 as in the prior art, and the external illumination light 181 can be protected with the simple configuration as described above, thereby reducing the design man-hours. In addition to being connected, it also leads to cost reduction by sharing materials.

  Next, the rotation range adjustment mechanism of the external illumination device 180 according to the present embodiment will be described with reference to the drawings. FIG. 3 is a diagram for explaining the rotation restriction of the external lighting device 180 mounted on the forestry machine according to the embodiment. FIG. 4 is an enlarged view of a portion A in FIG.

  The external illumination device 180 further includes a rotation restricting member that can restrict the angular displacement (direction) of the external illumination light 181. As shown in FIGS. 3 and 4, the rotation restricting member has a stopper 187 that restricts the angular displacement below the external illumination light 181 by bringing the cover member 183 into contact therewith. Specifically, the stopper 187 has the lower rotation circle on the side surface of the support portion 185a of the bracket 185 so that the lower rotation is restricted when the external lighting device 180 is rotated downward. It is fixed at a position within the circumference. In this embodiment, the stopper 187 is a plate material having substantially the same thickness as the side portion 183c, and the stopper 187 restricts the rotation range so that the external lighting device 180 does not rotate too much downward. A bent portion 187a that bends in the direction to be bent. A chamfered portion 183f is formed in the side portion 183c, and the rotation of the external illumination device 180 is restricted by rotating the external illumination device 180 and bringing the chamfered portion 183f into contact with the bent portion 187a. . The chamfered portion 183f is in surface contact with the bent portion 187a. As a result, the pressure due to contact is dispersed without concentrating on one point, so that the durability of the cover member 183 and the stopper 187 is excellent.

  Since the external illumination device 180 is configured as described above, the external illumination light 181 can be protected from falling objects, and the external illumination light 181 with the cover member 183 can be integrally rotated with a simple configuration. Can be made. In addition, since the external illumination light 181 is restricted from rotating by the stopper 187, the electric wire wired in the vicinity of the external illumination light 181 is not bent and the flow of electricity is not blocked. Further, the electric wire is not broken or burned out. Further, there is no possibility that the angle of the external lighting device 180 is transiently displaced due to the impact of a falling object, and the external lighting device 180 is damaged and detached from the machine body. Furthermore, although the irradiation position of the external illumination device 180 may be shifted due to the impact of a falling object, the irradiation angle necessary for ensuring the worker's field of view can be maintained.

  Further, according to the present embodiment, a commercially available excavator, forestry machine, or the like using the external illumination light 181, the cover member 183, the screw 184, the bracket 185, the fixing screw 186, and the stopper 187 as an assembly (assembly). Can be mounted on construction machines. Specifically, this assembly is fixed by a guard member 182 and bolts or the like via a substantially rectangular base plate 190. The assembly is fixed to the base plate 190 by welding or the like. Therefore, it is not necessary to newly design the guard member 182 in order to protect the external illumination light 181, the number of design steps can be reduced, and the cost of the member can be reduced. In addition, since the external lighting device 180 is configured as the assembly, it is possible to easily manufacture a construction machine that is compatible with mounting an external lighting light and includes an angle adjustment mechanism and a rotation restricting member.

  In the present embodiment, the electric wires 200 for electrically connecting the external illumination lights 181 are wired in a bundle on the back side of the base plate 190 so as not to be exposed from the outside. As described above, by mounting the external lighting device 180 via the base plate 190, it is possible to effectively prevent the electric wire 200 from being disconnected due to falling objects such as logs and branches caught on the electric wire 200.

  Furthermore, in the present embodiment, the external lighting device 180 is mounted on the guard member 182, unlike the prior art in which an external lighting light is mounted on the front upper part of the cabin. Therefore, the work is not hindered by the reflection of the illumination on the guard member.

  As mentioned above, although the form for implementing this invention was explained in full detail, this invention is not limited to this specific embodiment, In the range of the summary of this invention described in the claim, various Can be modified or changed.

  In the present embodiment, the case where the stopper 187 is fixed to the bracket 185 is described as an example, but the present invention is not limited to this configuration. For example, the stopper 187 may be fixed to the guard member 182 or may be fixed to the cabin 10.

DESCRIPTION OF SYMBOLS 1 ... Lower traveling body 2 ... Turning mechanism 3 ... Upper turning body 4 ... Boom 5 ... Arm 6 ... Harvester link 7 ... Boom cylinder 8 ... Arm cylinder 9. ··· Harvester link cylinder 10 ··· Cabin 11 · · · Engine 100 · · · Harvester device 180 · · · External illumination device 181 · · · External illumination light 182 · · · Guard member 183 · · · Cover member 184 ··· Screw 185 ... Bracket 186 ... Fixing screw 187 ... Stopper (turning restricting member) 190 ... Base plate 200 ... Electric wire

Claims (3)

The cabin,
A guard member protecting the front window portion of the cabin;
Mounted on the upper portion of the guard member, and an external illumination light you illuminate the front of the cabin,
A cover member for protecting the external illumination light and forming an opening in the illumination direction of the external illumination light ;
An angle adjustment mechanism for adjusting the angle of the cover member;
A rotation restricting member for restricting the rotation range of the cover member;
A forestry machine equipped with,
The forestry machine, wherein the rotation restricting member restricts the downward rotation of the external illumination light within a predetermined angular displacement when the external illumination light is rotated downward from the front. .   The forestry machine according to claim 1, wherein the angle adjustment mechanism causes the cover member to rotate integrally with the external illumination light.   The forestry machine according to claim 1, wherein the rotation restricting member contacts the cover member when the cover member is rotated downward.

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