JP3625701B2 - Industrial vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an industrial vehicle having a retractable rearview mirror device.
[0002]
[Prior art]
Conventionally, for example, a wide range of vehicles such as self-propelled trolleys, vehicles with self-propelled trolleys with front and rear driving parts, and vehicles that run inside pallets, etc. Need to be stored depending on In such a case, an actuator such as a hydraulic cylinder device or an electric cylinder device is used to store the rearview mirror support device itself in the vehicle (inside the vehicle width).
[0003]
[Problems to be solved by the invention]
However, according to the above-described conventional configuration, when the rearview mirror that protrudes (projects) outside the vehicle width contacts an obstacle and external force is applied to the rearview mirror, the rearview mirror is supported. Since not only members but also expensive actuators are damaged, the repair cost is high.
[0004]
Therefore, the inventors of the 請 Motomeko 1 description of the invention, yet form moved by actuating means rear view mirror, when an external force to the rear view mirror side is imparted, it is automatically avoided moving the rear view mirror side The object is to provide an industrial vehicle to obtain.
[0005]
[Means for Solving the Problems]
To achieve the above object, industrial vehicle 請 Motomeko 1 description of the invention, the vehicle body side with a wheel device, the rear view mirror apparatus and is provided with operation section, the after-view mirror device, The actuating means is configured to move between a position where the rearview mirror projects outside the vehicle width and a position where the rearview mirror fits within the vehicle width, and external force is applied to the rearview mirror side projecting outside the vehicle width. External force avoiding means for avoiding the rear-view mirror side is provided . The external force avoiding means includes a first rotating body provided to be rotatable about a longitudinal axis with respect to the vehicle body side, and the first rotating body. A recess formed on the rotating body side, a second rotating body externally fitted to the first rotating body so as to be relatively rotatable, and a tip provided on the second rotating body side, the tip of which is engageable with the recess. A plunger, and an operating means is linked to the first rotating body, and a lateral arc is formed on the second rotating body side. Together with the rear view mirror is provided via, the intermediate position of the arm in which the angle adjustment structure is characterized in that it is interposed.
[0006]
Therefore, according to the first aspect of the present invention, for example, during normal traveling, the rearview mirror device can be in a position where the rearview mirror protrudes out of the vehicle width by the operation of the operating means. Then, the rearview mirror device can be positioned to fit the rearview mirror within the vehicle width by the reverse operation of the operating device. At that time, the first rotating body can be rotated forward and backward around the longitudinal axis by operating the operating means forward and backward with the distal end of the plunger engaged with the recess of the first rotating body. However, at this time, since the second rotating body is integrated with the first rotating body via the plunger, the second rotating body and the first rotating body rotate forward and backward around the longitudinal axis, and thereafter The mirror device can be in a position where the rear-view mirror protrudes outside the vehicle width or a position where it falls within the vehicle width. For example, when the traveling carriage is traveling at a position where the rear-view mirror is projected outside the vehicle width, the moving rear-view mirror or arm contacts (contacts) an obstacle. When an external force is applied to the rear-view mirror side, the second rotating body tries to rotate through the arm. At this time, since the operating means does not move, the first rotating body does not rotate. However, due to the rotational force on the second rotating body side, the plunger engaged in the recess will be moved backward (retraction movement) in an attempt to move from the recess, thereby releasing the lock by the plunger, The second rotating body can be automatically rotated relative to the first rotating body, so that the rear-view mirror side can be avoided by the external force avoiding means. In this way, the rearview mirror or arm can be automatically avoided when an external force is applied to the rearview mirror or arm , although the rearview mirror is moved by the operating means.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Below, 1st embodiment of this invention is described based on FIGS. 1-9 as the state employ | adopted as the self-propelled trolley | bogie of a front-and-rear drive part type | formula.
2 to 4, a self-propelled carriage 1 that is an example of an industrial vehicle has driving units 3 and 4 provided at both front and rear ends of the vehicle body 2, and covers the upper portions of both driving units 3 and 4. In the upper part of the vehicle body 2, a cargo bed 5 is provided. A pair of left and right wheel devices 10 are provided at a plurality of front and rear locations (for example, front and rear four locations) on the lower side of the vehicle body 2.
[0011]
Here, the wheel device 10 is of a turning type, and a turning member 12 that can turn around the longitudinal axis 11 with respect to the vehicle body 2 side, a bracket body 13 having an upper end fixed to the turning member 12, and the bracket An arm body 15 connected to the lower end of the body 13 via a lateral shaft 14, an axle 16 provided on the arm body 15, a wheel 17 and a wheel drive unit 18 provided on the axle 16, and a bracket body 13 and a cylinder device 19 provided between the arm body 15 and the like.
[0012]
The rear-view mirror device 20 is provided in the vehicle body 2, that is, on both side positions of both the operating units 3 and 4. As shown in FIGS. 1 to 6 and 8, the rearview mirror device 20 includes a position at which a rearview mirror (back mirror) 25 protrudes outside the vehicle width by an electric cylinder device (an example of an operating means) 21. It is configured to be moved at a position that fits within the vehicle width. An external force avoiding means 31 is provided for avoiding the rear mirror 25 side when an external force is applied to the rear mirror 25 side protruding outside the vehicle width.
[0013]
That is, a pair of upper and lower brackets 32 is provided on the vehicle body 2 side or on the driving units 3 and 4 side fixed to the vehicle body 2. A cylindrical first rotating body 37 is positioned between the brackets 32, and a pin 33 is inserted from the lower bracket 32 to the first rotating body 37 and the upper bracket 32. The pin 33 is fixed to the lower bracket 32 via an end plate 34 and a set screw 35. Accordingly, the first rotating body 37 is provided to be rotatable around the longitudinal axis 36 with respect to the vehicle body 2 side.
[0014]
The first rotating body 37 includes an upper diameter large portion 37a and a lower diameter small portion 37b, and a hole-shaped recess 38 is formed at one place in the circumferential direction of the small diameter portion 37b. A cylindrical second rotator 39 is provided on the small-diameter portion 37b of the first rotator 37 so as to be externally fitted in a relatively rotatable manner. A screw hole 40 is formed on the second rotating body 39 side, and a plunger 41 that is screwed into and attached to the screw hole 40 is provided.
[0015]
The plunger 41 is positioned within the plunger main body 42, a spherical (or hemispherical) engaging portion (tip portion) 43 provided at the tip of the plunger main body 42, and the plunger main body 42. The engaging portion 43 is configured by a spring 44 that projects and urges the engaging portion 43. The engaging portion 43 is freely engageable with the hole-shaped recess 38. A lock nut 45 can be screwed onto the plunger 41. An example of the external force avoiding means 31 is configured by the above 32 to 45 and the like.
[0016]
The electric cylinder device 21 includes a cylinder body 21a, a pinton rod 21b, an electric motor 21c, and the like. The cylinder body 21a is connected to a bracket 22 on the vehicle body 2 side via a vertical pin 23. Further, the pinton rod 21 b is connected to a bracket 43 provided continuously from the large diameter portion 37 a of the first rotating body 37 via a vertical pin 24.
[0017]
The arm 26 is connected in a lateral direction from the second rotating body 39, and the rearview mirror 25 is provided at the free end portion of the arm 26. Note the intermediate position of the arm 26 an angle adjusting structure 27 that is interposed. The above-described 21 to 46 and the like constitute an example of the rearview mirror device 20.
[0018]
The pallet body (support frame body) 50 supported by the loading platform 5 includes a pallet part 50a on which an object (loading object) 52 can be placed and a plurality of leg parts 50b suspended from the pallet part 50a. It is formed in a portal shape.
The operation in the first embodiment will be described below.
The self-propelled carriage 1 travels forward, for example, by driving on the driving unit 3, and travels backward by driving on the driving unit 4. In that case, the self-propelled carriage 1 can be turned left or right by turning the turning member 12 of the wheel device 10 forward and backward by a turning drive device (not shown). In front and rear running including such turning, in each wheel device 10, the rotation of the wheel driving unit 18 is transmitted to the axle 16.
[0019]
Then, the cylinder device 19 of the wheel device 10 is contracted to swing the arm body 15 upward around the lateral axis 14 and the wheel 17 is raised via the axle 16 so that the loading platform 5 side is lowered. Can be. In this state, the self-propelled carriage 1 is caused to travel in a portal-shaped pallet body 50 on which the object 52 is placed (or empty), as shown in FIGS. Is stopped below the pallet portion 50a.
[0020]
Next, contrary to the above, the cylinder device 19 of the wheel device 10 is extended to swing each arm body 15 downward, and the wheel 17 is lowered via the axle 16 so that the grounding reaction force causes the loading platform. The pallet body 50 can be lifted by raising the 5 side. Thereafter, the self-propelled carriage 1 is caused to travel as described above, so that the transported object 52 can be transported. After transporting to a predetermined place in this way, in the same manner as described above, the cylinder device 19 of the wheel device 10 is contracted to raise the wheel 17, and the loading platform 5 side is set to the lowered position. The pallet body 50 can be landed at a predetermined place.
[0021]
In the self-propelled carriage 1 that performs traveling and operations as described above, for example, during normal traveling, the rear-view mirror device 20 is set to a position where the rear-view mirror 25 protrudes outside the vehicle width by the electric cylinder device 21. ing.
That is, as shown in FIG. 5, the electric cylinder device 21 is extended while the engaging portion 43 of the plunger 41 is elastically engaged with the hole-like recess 38 of the first rotating body 37. Accordingly, the first rotating body 37 is rotated around the longitudinal axis 36 through the bracket 46, and at this time, the second rotating body 39 is integrated with the first rotating body 37 through the plunger 41. For this reason, the second rotating body 39 as well as the first rotating body 37 is also rotated around the longitudinal axis 36, and as shown by the solid lines in FIGS. The position protrudes outside the vehicle width.
[0022]
For example, as described above, when the self-propelled carriage 1 is caused to travel in the portal-type pallet body 50, the rearview mirror device 20 is positioned so that the rearview mirror 25 is accommodated within the vehicle width by the electric cylinder device 21. It is said. That is, as described above, the electric cylinder device 21 is contracted and moved in a state where the rearview mirror 25 of the rearview mirror device 20 protrudes outside the vehicle width.
[0023]
As a result, the first rotating body 37 is reversely rotated around the longitudinal axis 36 via the bracket 46. At this time, the second rotating body 39 is integrated with the first rotating body 37 via the plunger 41. For this reason, the second rotating body 39 as well as the first rotating body 37 is also rotated in the reverse direction around the longitudinal axis 36, so that the rearview mirror device 20 is connected to the rearview mirror 25 as shown in FIGS. Is within the vehicle width.
[0024]
For example, as shown by the solid line in FIG. 8, when the traveling carriage 1 is traveling forward at a position where the rear-view mirror 25 of the rear-view mirror device 20 protrudes outside the vehicle width, When an external force is applied to the rearview mirror 25 side when the arm 26 or the like comes into contact (contact) with the obstacle 55 or the like, as shown by an imaginary line in FIG. Can be avoided.
[0025]
That is, when an external force is applied to the rearview mirror 25 side, the second rotating body 39 tries to rotate via the arm 26. At this time, since the electric cylinder device 21 does not move, the first rotating body 37 rotates. do not do. However, the engaging portion 43 engaged with the hole-shaped recess 38 is moved backward from the spring 44 by the rotational force on the second rotating body 39 side against the spring 44 (retraction). Thus, the lock by the plunger 41 is released, and the second rotating body 39 is automatically rotated relative to the first rotating body 37.
[0026]
In this way, the rearview mirror 25 is moved by the electric cylinder device 21, but when the external force is applied to the rearview mirror 25 side, the rearview mirror 25 side can be automatically avoided. Therefore, the rearview mirror 25, the arm 26, and the like are not easily damaged, and further, a larger force is not applied to the electric cylinder device 21 side, and the expensive electric cylinder device 21 is not easily damaged. Repair costs can be lowered.
[0027]
In the above description, when the self-propelled carriage 1 travels forward, the moving rearview mirror 25, the arm 26, etc. come into contact with the obstacle 55, etc., and an external force is applied to the rearview mirror 25 side. As shown by an imaginary line 8, the rear-view mirror 25 side is moved backward by the external force avoiding means 31, which is the rear-side rear-view mirror device 20 or the traveling carriage 1 during backward travel. Is capable of moving the rearview mirror 25 side forward by the external force avoiding means 31.
[0028]
Next, a second embodiment of the present invention will be described based on FIGS. 10 (a) and 10 (b).
That is, in the small diameter portion 37b of the first rotating body 37, a groove-like recess 48 is formed in one place in the circumferential direction in the vertical direction. According to the second embodiment, even if the vertical positions of the first rotating body 37 and the second rotating body 39 are deviated, the engaging portion 43 of the plunger 41 is always securely engaged, Can be locked.
[0029]
Next, a third embodiment of the present invention will be described based on (c) and (d) of FIG.
That is, in the small diameter portion 37b of the first rotating body 37, hole-shaped recesses 38 (or groove-shaped recesses 48) are formed at a plurality of locations in the circumferential direction. According to the third embodiment, it is possible to prevent excessive rotation around the second rotating body 39 side.
[0030]
Next, a fourth embodiment of the present invention will be described based on 1 (e) and (f) in FIG.
That is, in the small diameter portion 37b of the first rotating body 37, hole-shaped recesses 38 (or groove-shaped recesses 48) are formed at a plurality of positions in the circumferential direction, and a plurality of holes are formed on the second rotating body 39 side. A plurality of plungers 41 are provided. According to the fourth embodiment, the rotational force (unlocking force) can be adjusted.
[0031]
In the first embodiment described above, the electric cylinder device 21 is shown as the actuating means, but this may be another type such as a hydraulic cylinder device or a solenoid device.
In the first embodiment described above, a form in which the spherical engagement portion 43 is projected and urged by the spring 44 as the plunger 41 is shown. This is because the piston-like engagement portion of the tip hemisphere protrudes by the spring. Other formats, such as an energizing format, may be used.
[0032]
In the first embodiment described above, the self-propelled carriage 1 is shown in which the driving units 3 and 4 are provided at the front and rear end portions of the vehicle body 2, respectively. It may be in the format.
In the first embodiment described above, the self-propelled carriage 1 is shown in which the loading platform 5 is provided on the upper part of the vehicle body 2 in a state of covering the upper portions of the two driving units 3 and 4. The form in which the part of the loading platform 5 is not located above 3 and 4 may be sufficient.
[0033]
In the first embodiment described above, the all-turning wheel device 10 is shown, but this may be all a non-turning wheel device. It is possible to adopt a form in which a swivel wheel device is used, and two swivel wheel devices 10 are provided at the front and rear.
In the first embodiment described above, the elevating wheel device 10 is shown, but this may all be a non-elevating wheel device.
[0034]
【The invention's effect】
According to the first aspect of the present invention described above , the rear-view mirror device projects the rear-view mirror and the arm out of the vehicle width by the external force avoiding means that can be easily configured, although the rear-view mirror is moved by the operating means. It can be placed in a position that fits within the vehicle width. When the rearview mirror or arm that protrudes outside the vehicle width comes into contact (contact) with an obstacle or the like and an external force is applied to the rearview mirror or arm , the rearview mirror or arm is automatically avoided. Therefore, the rearview mirror and the arm are difficult to be damaged, and moreover, a larger force is not applied to the operating means side, and the expensive operating means is hardly damaged, so that the repair cost can be reduced. .
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a rear-view mirror device portion of an industrial vehicle, showing a first embodiment of the present invention.
FIG. 2 is a partially cutaway side view of the same industrial vehicle.
FIG. 3 is a plan view of the industrial vehicle.
FIG. 4 is a front view of the industrial vehicle.
FIG. 5 is a rear view mirror device portion of the same industrial vehicle, in which (a) is a cross-sectional plan view of the main part, and (b) is a perspective view of the main part.
FIG. 6 is a partially cutaway front view of the industrial vehicle rear-view mirror device portion when the rear-view mirror extends.
FIG. 7 is a front view when the rearview mirror is stored in the rearview mirror device portion of the same industrial vehicle.
FIG. 8 is a plan view of the rearview mirror device portion of the industrial vehicle when the rearview mirror is extended.
FIG. 9 is a plan view when the rearview mirror is stored in the rearview mirror device portion of the industrial vehicle.
10A and 10B show another embodiment of the present invention, which is a rear-view mirror device portion of an industrial vehicle, in which FIG. 10A is a cross-sectional plan view of the main part showing the second embodiment, and FIG. (C) is a cross-sectional plan view of the main part showing the third embodiment, (d) is a perspective view of the main part, and (e) is a main part showing the fourth embodiment. A cross-sectional plan view, (f) is a perspective view of the main part.
[Explanation of symbols]
1 Self-propelled cart (industrial vehicle)
2 Car body 3 Driving unit 4 Driving unit 10 Wheel device 17 Wheel 20 Rearview mirror device 21 Electric cylinder device (actuating means)
22 Bracket 25 Rearview mirror
26 Arm 31 External force avoiding means 32 Bracket 36 Longitudinal axis 37 First rotating body 38 Hole-shaped recess 39 Second rotating body 41 Plunger 43 Engaging portion (tip portion)
44 Spring 48 Groove-shaped recess 50 Pallet body (support frame body)
52 Carryed items (loaded items)
55 Obstacle

Claims (1)

A driving unit and a rearview mirror device are provided on the vehicle body side having the wheel device, and the rearview mirror device is located at a position where the rearview mirror projects out of the vehicle width by the operating means and a position within the vehicle width. configured to be moved between, when an external force is applied to the view mirror side after being projected outside the vehicle width, the external force avoiding means for avoiding moving the rear view mirror side are provided, the external force avoidance means A first rotating body provided to be rotatable about a longitudinal axis with respect to the vehicle body side, a recess formed on the first rotating body side, and an outer fit to the first rotating body so as to be relatively rotatable. The second rotating body and a plunger which is provided on the second rotating body side and whose front end is engageable with the recess, and operating means is interlocked with the first rotating body so that the second rotation is performed. A rear-view mirror is provided on the body side via a lateral arm, and an angle adjustment is provided at the intermediate position of the arm. Industrial vehicle, characterized in that the structure is interposed.

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