JP2019127173A - Cargo handling vehicle - Google Patents

Abstract

To provide a cargo handling vehicle which can inhibit adhesion of droplets to a lens of a back camera with a simple structure.SOLUTION: A cargo handling vehicle includes: a vehicle body 10 which can travel in a fore and aft direction; an engine 31 and a radiator 32 housed in the vehicle body 10; a fan 33 which is provided between the engine 31 and the radiator 32 and blows air to the radiator 32; a back camera 35 which captures images of the vehicle rear side which is the rear side of the vehicle body 10; and a duct member 40 which is provided so as to cover the back camera 35. The back camera 35 has a lens which is provided oriented to the vehicle rear side. The duct member 40 has a shape which concentrates airflow from the radiator 32 to the lens of the back camera 35.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a cargo handling vehicle provided with a back camera that captures an image of the rear of the vehicle.

  In general, a vehicle equipped with a back camera is known in order to grasp the situation behind the vehicle that is difficult to visually confirm. The back camera has a lens provided toward the rear, and when water droplets adhere to the lens, there is a problem that an image behind the vehicle becomes unclear.

  Patent Document 1 describes a vehicle provided with a pump device for delivering compressed air and a nozzle device for injecting compressed air to a lens of a camera in order to remove water droplets attached to the lens.

JP 2012-201222 A

  However, the configuration in which the compressed air is ejected to remove water droplets attached to the lens has a problem that the configuration is complicated because a pump device or the like is required. As a result, there are inconveniences such as a significant increase in manufacturing cost and troublesome maintenance.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cargo handling vehicle capable of suppressing the adhesion of water droplets to the lens of the back camera with a simple configuration.

  In order to solve the above-described problems, according to a first aspect of the present invention, there is provided a cargo handling vehicle according to the first aspect of the present invention, comprising: a vehicle main body capable of traveling in a longitudinal direction; an engine and a radiator accommodated in the vehicle main body; And a duct member provided to cover the back camera, wherein the back camera is provided with a fan for blowing air toward the radiator, a back camera for capturing the back of the vehicle, which is the back of the vehicle body, and The present invention is characterized in that the vehicle has a lens provided toward the rear of the vehicle, and the duct member has a shape for collecting the air flow from the radiator toward the lens.

  The cargo handling vehicle according to claim 2 is the cargo handling vehicle according to claim 1, wherein the duct member has an upper plate portion covering the back camera from above, and at least a portion of the upper plate portion Further, the vehicle is inclined with respect to the optical axis so that the distance from the optical axis of the back camera becomes shorter toward the rear of the vehicle.

  The cargo handling vehicle according to claim 3 is the cargo handling vehicle according to claim 1 or 2, wherein the duct member has a side plate portion that covers the back camera from the right side and the left side, and the side plate portion At least a portion is inclined with respect to the optical axis so that the distance from the optical axis of the back camera becomes shorter toward the rear of the vehicle.

  A loading and unloading vehicle according to a fourth aspect of the present invention is the loading and unloading vehicle according to any one of the first to third aspects, wherein the duct member covers the back camera and extends further rearward than the lens. And a bending piece provided at a rear end of the duct body, wherein the bending piece is bent from the duct body toward the optical axis of the back camera. To do.

  The cargo handling vehicle according to claim 5 is the cargo handling vehicle according to any one of claims 1 to 4, wherein the air flow from the radiator is discharged to the upper side of the vehicle main body in the vehicle main body. An exhaust port is formed, and the duct member also serves as a grill provided at the exhaust port.

  The cargo handling vehicle according to claim 6 is the cargo handling vehicle according to any one of claims 1 to 5, wherein the duct member has an air inflow end portion through which air flows into the duct member; It has a swirling shape portion for swirling the air that has flowed into the inside of the duct member, and an air outflow end portion from which the air flows out from the inside of the duct member toward the lens, and the swirling shape portion A foreign matter discharge opening for discharging a liquid or a solid contained in the swirling air from the inside of the duct member is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the cargo handling vehicle which can suppress adhesion of the water droplet to the lens of a back camera with simple structure can be provided.

1 is a side view of a cargo handling vehicle according to a first embodiment of the present invention. (A) is sectional drawing which shows schematic structure of the cargo handling vehicle which concerns on the embodiment, (B) is a top view which shows schematic structure of the cargo handling vehicle which concerns on the embodiment. (A) And (B) is a sectional view of the duct member concerning the embodiment, and its circumference. (A) is sectional drawing which shows schematic structure of the cargo handling vehicle which concerns on 2nd Embodiment of this invention, (B) is a top view which shows schematic structure of the cargo handling vehicle which concerns on the embodiment. It is sectional drawing of the duct member which concerns on the same embodiment. (A) is a cross-sectional view of a duct member according to a modification of the present invention and the periphery thereof, and (B) is a cross-sectional view of a duct member according to another modification of the present invention and the periphery thereof. (A) is sectional drawing which shows schematic structure of the cargo handling vehicle which concerns on the modification of this invention, (B) is sectional drawing which shows schematic structure of the cargo handling vehicle which concerns on the other modification of this invention.

First Embodiment
A first embodiment of the present invention will be described with reference to FIGS. In addition, the front-back direction, the left-right direction, and the up-down direction shall be considered on the basis of a cargo handling vehicle.

  As shown in FIG. 1, the cargo handling vehicle 1 is an engine-type counterbalance forklift, and includes a vehicle main body 10 capable of traveling in the front-rear direction and a cargo handling device 20 provided in front of the vehicle main body 10 .

  The cargo handling vehicle 1 includes, as elements provided in the vehicle main body 10, a driver's seat 11 on which an operator driving the cargo handling vehicle 1 sits, an operation device 12 operated by the operator, and a rear of the vehicle main body 10 A video display device 13 for confirming the rear of the vehicle 1 is provided. The video display device 13 displays a video captured by a back camera 35 described later. Not only the video shot by the back camera 35 but also the video shot by another camera (not shown) may be displayed on the video display device 13, and the back camera 35 and the other cameras may be used. An image obtained by combining the captured images may be displayed.

  In addition, the cargo handling vehicle 1 includes, as elements constituting the cargo handling device 20, a fork 21 for cargo handling, a lift device 22 for moving the fork 21 up and down, a tilt device 23 for tilting the lift device 22 and the fork 21 and the like. Yes.

FIG. 2 shows the internal configuration of the vehicle body 10.
As shown in FIGS. 2A and 2B, the cargo handling vehicle 1 includes an engine 31, a radiator 32, a fan 33, a counterweight 34, a back camera 35, as elements provided in the vehicle main body 10. A bracket 36, an upper frame 37, a grill 38, and a duct member 40 are provided. In FIG. 2A, the cross section of the counterweight 34 and the upper frame 37 is illustrated.

  The engine 31 is an internal combustion engine housed in the vehicle body 10, and generates power for the vehicle body 10 to travel and power for the fork 21 to operate. The engine 31 has a crankshaft connected to the fan 33 and rotates the fan 33.

  The radiator 32 is a heat exchanger accommodated in the vehicle main body 10 and is provided behind the engine 31. The radiator 32 cools the temperature of the object to be cooled flowing inside the radiator 32 by radiating heat. The cooling target is, for example, a coolant for cooling the engine 31 and hydraulic oil for operating the cargo handling device 20.

  The fan 33 is a blower provided between the engine 31 and the radiator 32, and blows air toward the rear of the vehicle body 10, that is, toward the radiator 32. The fan 33 generates an air flow that passes through the radiator 32 and reaches the grill 38 and the duct member 40. An arrow indicated by a one-dot chain line in the figure schematically shows an air flow generated by the fan 33.

  The counterweight 34 is a weight for positioning the center of gravity of the cargo handling vehicle 1 on the rear side, and also serves as a rear frame of the vehicle body 10. The counterweight 34 has a shape that guides the air flow from the radiator 32 upward.

  The back camera 35 is provided on the upper surface of the counterweight 34 via the bracket 36 and photographs the rear of the vehicle, which is the rear of the vehicle body 10. The back camera 35 captures the rear of the vehicle to generate video data and outputs the video data to the video display device 13. The back camera 35 has a lens 35A (see FIG. 3) provided toward the rear of the vehicle.

  The bracket 36 is a support for the back camera 35 attached to the upper surface of the counterweight 34 and supports the back camera 35. The bracket 36 is fixed to the counterweight 34 by, for example, a bolt (not shown).

  The upper frame 37 is provided above the engine 31 and the like, and covers the engine 31, the radiator 32, and the fan 33 from above. An exhaust port A opening upward is formed between the upper frame 37 and the counterweight 34.

  The grille 38 is a grid member provided at the exhaust port A formed in the vehicle body 10, and configured to be capable of discharging the air flow passing through the radiator 32 to the outside of the vehicle body 10, and inside the vehicle body 10 To prevent foreign objects from entering the camera.

  The duct member 40 is an air guide member that is open in the front-rear direction, and is provided so as to cover the back camera 35, and is configured to be able to discharge the air flow passing through the radiator 32 to the outside of the vehicle body 10. Yes. The duct member 40 has an iris shape that guides the air flow from the radiator 32 to the lens 35A at an increased speed, that is, a shape that collects the air flow toward the lens 35A. The duct member 40 is fixed to the counterweight 34 by, for example, a bolt (not shown).

FIG. 3 shows the cross-sectional structure of the duct member 40. As shown in FIG.
As shown in FIG. 3A, the duct member 40 of the present embodiment has an upper plate portion 41 that covers the back camera 35 from above, and a part (rear portion) of the upper plate portion 41 is located behind the vehicle. To the optical axis M so that the distance from the optical axis M of the back camera 35 becomes shorter as

  Further, as shown in FIG. 3B, the duct member 40 of the present embodiment has side plate portions 42 and 43 covering the back camera 35 from the right side and the left side, and the side plate portions 42 and 43 The vehicle is inclined with respect to the optical axis M so that the distance from the optical axis M of the back camera 35 becomes shorter toward the rear of the vehicle.

  Further, as shown in FIG. 3A, the duct member 40 of the present embodiment is added to the duct main body portion 44 constituted by the upper plate portion 41 and the side plate portions 42 and 43 and the rear end of the duct main body portion 44. It further has a bent piece 45 provided on. The bending piece 45 is provided integrally with the duct main body 44, and is bent toward the optical axis M of the back camera 35 from the rear end of the upper plate 41 constituting the duct main body 44.

The operation of this embodiment will be described.
As the fan 33 sends air to the rear of the vehicle, the object to be cooled in the radiator 32 is cooled, and the air flow passing through the radiator 32 is discharged above the vehicle body 10 through the grill 38 and the duct member 40 is It passes through and is discharged to the rear of the vehicle body 10. At this time, as indicated by the alternate long and short dash line in FIG. 3, the air passing through the duct member 40 flows along the inner surface of the duct member 40, and flows toward the lens 35 </ b> A. That is, the airflow from the radiator 32 is guided to the lens 35A at an increased speed.

The following effects are obtained in the present embodiment.
(1) Since the airflow generated by the fan 33 is concentrated toward the lens 35A, water droplets attached to the lens 35A can be blown off. That is, the attachment of water droplets to the lens 35A can be suppressed with a simple configuration by using the fan 33 for cooling the radiator 32. In addition, since the air heated by passing through the radiator 32 is blown onto the lens 35A, fogging of the lens 35A can be suppressed.

  (2) The upper plate portion 41 and the side plate portions 42 and 43 of the duct member 40 are inclined with respect to the optical axis so that the distance from the optical axis of the back camera 35 becomes shorter toward the rear of the vehicle The speed of the airflow from 32 can be effectively increased.

  (3) Since the bending piece 45 of the duct member 40 is bent from the duct body 44 toward the optical axis M of the back camera 35, the air flow can be effectively guided to the lens 35A of the back camera 35.

Second Embodiment
A second embodiment of the present invention will be described with reference to FIGS. In addition, about the structure similar to 1st Embodiment, description is abbreviate | omitted or simplified using the same code | symbol.

  As shown in FIGS. 4A and 4B, the loading and unloading vehicle 1 according to the present embodiment includes a duct member 40 which also serves as a grill provided at the exhaust port A as an element provided on the vehicle main body 10. Yes. 4A, the cross section of the counter weight 34 and the upper frame 37 is illustrated.

  The duct member 40 according to the present embodiment is provided so as to cover the exhaust port A and the back camera 35, and is configured to be able to discharge the air flow passing through the radiator 32 to the upper side and the rear side of the vehicle body 10. The duct member 40 is attached to the upper frame 37 or the counterweight 34.

FIG. 5 shows the cross-sectional structure of the duct member 40. As shown in FIG.
As shown in FIG. 5, the duct member 40 of the present embodiment includes a duct main body 44 composed of an upper plate portion 41 and side plate portions 42 and 43 (see FIG. 4B), and a rear of the duct main body portion 44. It has a bending piece 45 provided at the end and a grill portion 46 covering the exhaust port A. The grill portion 46 is formed in a lattice shape, and configured to be capable of discharging the air flow passing through the radiator 32 to the outside of the vehicle body 10, and suppresses the intrusion of foreign matter into the inside of the vehicle body 10.

In the present embodiment, in addition to the effects (1) to (3), the following effects can be obtained.
(4) Since the duct member 40 also serves as a grill provided at the exhaust port A, the number of parts can be reduced.

  The present invention is not limited to the above embodiment, and the above configuration may be changed as appropriate. For example, the embodiment described above may be modified as follows, and the following modifications may be combined as appropriate.

If the airflow from the radiator 32 can be concentrated toward the lens 35 </ b> A of the back camera 35, the shape of the duct member 40 may be changed as appropriate.
Specifically, for example, as shown in FIG. 6A, the bent piece 45 of the duct member 40 is formed from the rear end of each of the side plate portion 42 and the side plate portion 43 constituting the duct main body portion 44. It may be bent toward the optical axis M. Further, for example, the duct member 40 may not have the bent piece 45.

  Further, for example, as shown in FIG. 6B, a duct member 40 configured to be able to separate air and foreign matter may be employed. The duct member 40 shown in FIG. 6B includes an air inflow end portion 51 where air flows into the duct member 40, a swirl shape portion 52 which swirls the air flowing into the duct member 40, and the duct member 40. And an air outflow end 53 from which the air flows out from the inside to the lens 35A. The turning shape portion 52 is provided with a foreign matter discharge opening 54 for discharging moisture, dust, and the like contained in the turning air from the inside of the duct member 40. According to this configuration, as shown by the two-dot chain line B in the figure, the water, dust, etc. contained in the air flow are discharged from the foreign matter discharge opening 54, so that foreign matter can be effectively discharged from the duct member 40. it can.

  -You may comprise so that the duct member 40 may serve as the bracket which supports the back camera 35. FIG. According to this configuration, since the bracket 36 is not necessary, the number of parts can be reduced.

  The arrangement of the back camera 35 and the duct member 40 may be appropriately changed as long as the rear of the vehicle can be photographed and the air flow from the radiator 32 can be concentrated toward the lens 35A. For example, the back camera 35 may be disposed as shown in FIG. 7 by employing a duct member 40 that also serves as a bracket.

  Specifically, for example, as shown in FIG. 7A, the counterweight 34 is formed with an exhaust port A opening in the front-rear direction, and the duct member 40 and the back camera 35 are formed in the exhaust port A. It may be provided. In FIG. 7A, cross sections of the counterweight 34, the upper frame 37, and the duct member 40 are shown.

  Further, for example, as shown in FIG. 7B, the vehicle body 10 is provided with an arm 39 for arranging the back camera 35 at a high place, and the back camera 35 is attached to the arm 39 via the duct member 40. It may be provided. The duct member 40 supported by the arm 39 is provided above the exhaust port A above the vehicle. In FIG. 7B, cross sections of the counterweight 34, the upper frame 37, the grill 38, and the duct member 40 are shown.

REFERENCE SIGNS LIST 1 cargo handling vehicle 10 vehicle main body 31 engine 32 radiator 33 fan 35 back camera 35 A lens 40 duct member 41 upper plate portion 42, 43 side plate portion 44 duct main body portion 45 bent piece 51 air inflow end portion 52 turn shape portion 53 air outflow end portion 54 Foreign matter discharge opening A Exhaust port M Optical axis

In order to solve the above-described problem, a cargo handling vehicle according to the first aspect of the present invention includes a vehicle main body capable of traveling in the front-rear direction, an engine and a radiator housed in the vehicle main body, and the engine and the radiator. And a duct member provided to cover the back camera, wherein the back camera is provided with a fan for blowing air toward the radiator, a back camera for capturing the back of the vehicle, which is the back of the vehicle body, and The duct member has an upper plate portion that covers the back camera from above, and a side plate portion that covers the back camera from the right and left sides. wherein and the airflow from the radiator has a shape that aggregate toward the lens, the duct main body portion is constituted by the said upper plate portion and the side plate portion, said duct Wherein the front end of the body portion with an opening toward the radiator, the rear end portion of the duct body portion is open toward the vehicle rear, the back camera inside the duct body portion is housed I assume.

Moreover, cargo handling vehicle according to claim 2, in handling vehicle according to claim 1, at least a portion of the front SL upper plate portion, the distance between the optical axis of the back camera toward the vehicle rear is short To be inclined with respect to the optical axis.

Moreover, cargo handling vehicle according to claim 3, in handling vehicle according to claim 1 or 2, at least a portion of the front SL side plate portion, the distance between the optical axis of the back camera toward the rear of the vehicle It is characterized in that it is inclined with respect to the optical axis so as to be short.

The cargo handling vehicle according to claim 5 is provided between a vehicle body capable of traveling in the front-rear direction, an engine and a radiator housed in the vehicle body, and the engine and the radiator, and is directed to the radiator A fan for blowing air, a back camera for capturing a rear of the vehicle body and a duct member provided to cover the back camera, and the vehicle body is supplied with an air flow from the radiator An exhaust port for discharging the vehicle body upward is formed, the back camera has a lens provided toward the rear of the vehicle, and the duct member directs the airflow from the radiator toward the lens. And has a shape to be integrated, and also serves as a grill provided at the exhaust port.

Claims (6)

A vehicle body capable of traveling in the front-rear direction,
An engine and a radiator housed in the vehicle body;
A fan that is provided between the engine and the radiator and blows air toward the radiator;
A back camera for capturing the rear of the vehicle, which is the rear of the vehicle body;
And a duct member provided to cover the back camera,
The back camera has a lens provided toward the rear of the vehicle,
The cargo handling vehicle, wherein the duct member has a shape that concentrates the air flow from the radiator toward the lens. The duct member has an upper plate portion that covers the back camera from above,
The at least part of the upper plate portion is inclined with respect to the optical axis so that the distance from the optical axis of the back camera becomes shorter toward the rear of the vehicle. Loading and unloading vehicles. The duct member has a side plate portion that covers the back camera from the right side and the left side,
The at least one part of the said side plate part is inclined with respect to the said optical axis so that the space | interval with the optical axis of the said back camera may become short toward the said vehicle rear. The loading and unloading vehicle described. The duct member includes a duct main body portion that covers the back camera and extends rearward of the vehicle from the lens, and a bent piece provided at a rear end of the duct main body portion,
The cargo handling vehicle according to any one of claims 1 to 3, wherein the bent piece is bent from the duct main body toward the optical axis of the back camera. The vehicle body is formed with an exhaust port for discharging the air flow from the radiator toward the upper side of the vehicle body,
The cargo handling vehicle according to any one of claims 1 to 4, wherein the duct member also serves as a grill provided at the exhaust port. The duct member has an air inflow end portion through which air flows into the duct member, a swirl shape portion which swirls the air flowing into the duct member, and air from the inside of the duct member toward the lens Has an air outlet end from which the
The said turning shape part is provided with the foreign material discharge | emission opening part which discharges | emits the liquid or solid contained in the air in turning from the inside of the said duct member. The loading and unloading vehicle described in.

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