JP5311238B2 - Pedestrian transporter - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a walking and riding transport vehicle for use in a farm field, and particularly to a self-propelled walking and riding transport vehicle that can ensure the safety of a user when used as a walking transport vehicle.

  As a self-propelled transport vehicle for farm fields, a walking riding and transporting vehicle disclosed in Patent Document 1 is known. In this walking passenger transport vehicle, the handle can be rotated along the longitudinal direction of the vehicle body, and when used as a passenger transport vehicle, the handle is rotated and fixed to the rear side of the vehicle body, When used as a walking transport vehicle, the handle is rotated and fixed to the front side of the vehicle body.

  When the walking passenger transport vehicle is used as a walking transport vehicle, the user stands and drives in front of the vehicle body, facing the vehicle body. Therefore, in this case, the walking passenger transport vehicle moves forward by traveling toward the rear side of the vehicle body and moves backward by traveling toward the front side of the vehicle body.

  Here, if the walking passenger transport vehicle is used as a walking transport vehicle and is moving backward, the user may be caught between the vehicle body and the obstacle by neglecting the confirmation of the rear side of himself / herself. I'm worried. For this reason, in general, a walking and transporting vehicle is provided with a stop switch for stopping the engine in the vicinity of the steering wheel or the like. Thus, the user can stop the engine by pressing the stop switch when the user is about to be sandwiched between the vehicle body and the obstacle.

JP 2010-260428 A

  However, in the walking and transporting vehicle, the user needs to press the stop switch by himself / herself. Therefore, when the vehicle is about to be sandwiched between the vehicle body and an obstacle, the engine cannot be stopped unless the user can press the stop switch, which poses a risk for the user. .

  The present invention has been made in view of the above problems, and can be used for both walking and riding that can be safely stopped when a user is about to be sandwiched between a vehicle body and an obstacle. The purpose is to provide a transport vehicle.

In order to achieve the above object, the walking and transporting vehicle according to claim 1 is a self-propelled walking and transporting vehicle that is not longer than a length that can be pushed in from a storage portion that is provided and fixed on the front surface of the vehicle body. A stop switch having a button for stopping the engine that is housed in a projecting manner, a squeezing prevention bar that is supported in the housing part by a brake intermediate link so as to be movable in the front-rear direction of the vehicle body, and the squeezing pressure An intermediate link that is pivotably supported at the front side of the prevention bar and that faces the button protruding from the stop switch housing portion toward the front of the vehicle body, and one end fixed to the intermediate link By connecting the other end to the pinching prevention bar, the intermediate link is moved in the direction of the button until the intermediate link comes into contact with a mission stopper provided on the pinching prevention bar. Brake operation that is a tension spring that biases rotation at a constant angle and a long hole formed on the rear side of the anti-clamping bar in accordance with further movement of the anti-clamping bar in the storage portion in the rearward direction A brake link that operates a brake via a brake intermediate link by a portion, and the intermediate link is moved to the rear side of the vehicle body when the pinching prevention bar is pressed from the front side of the vehicle body to move the button Is pushed to stop the engine, and after that, the intermediate link that rotates against the urging force of the tension spring hits the storage portion while pushing the button, and the brake operating portion of the pinching prevention bar By operating the brake via the brake link, the pressing from the front side of the vehicle body to the pinching prevention bar is released, so that the pinching prevention bar is moved to the front of the vehicle body by the tension spring. Navigate to direction, it is characterized by separating the said intermediate link from the button and the storage unit.

In the walking combined use transport vehicle according to claim 1, when used as a walking transport vehicle, when the vehicle travels to the front side of the vehicle body while the narrow pressure preventing bar is in contact with the leg of the user, When the prevention bar is pressed from the front side of the vehicle body and moves to the rear side of the vehicle body, the stop switch button is pushed in by the intermediate link that contacts the transmission stopper while being urged to the rear side of the vehicle body by the tension spring. Stop. Therefore, even when the user is likely to be sandwiched between the vehicle body and the obstacle, the user does not need to operate the stop switch himself. Further, in this walking and passenger transport vehicle, when the narrow pressure prevention bar is further moved to the rear side of the vehicle body , the brake operating portion is interposed via the brake link while the intermediate link is kept in contact with the storage portion. By operating the brake, it is possible to prevent the vehicle from traveling forward due to inertia after stopping the engine, so that safety can be improved.

In addition, since the stop switch housed in the housing portion has a projection length shorter than the pushable length of the button and projects the button toward the front side of the vehicle body, the button is pushed too much by the intermediate link. It is possible to prevent a failure of the stop switch due to.

Further, the narrow pressure preventing bar holds the intermediate link by being biased to a predetermined position by a tension spring so as to be rotatable. Thus, in this walking passenger shared trucks, by Sema圧preventing bars moves the rear of the vehicle body side, an intermediate link that rotates while abutting on the receiving portion, the front of the vehicle body to Sema圧prevention bar When the pressing from the side is released, a reaction is received from the accommodating portion when returning to a predetermined position by the biasing force of the tension spring . In this walking combined use transport vehicle, because the reaction pressure received by the intermediate link causes the narrow pressure prevention bar to move to the front side of the vehicle body and to be able to run again, the user can run again. Therefore, the convenience for the user can be improved.

The perspective view of the walking riding combined use transport vehicle of this invention. The principal part expansion perspective view of the walking passenger transport vehicle of this invention. The principal part expansion right view of the walking passenger transport vehicle of this invention. It is an enlarged view of a step, (a) top view, (b) right side view. It is an enlarged view of a stop switch, (a) Front view, (b) Right side view. It is an enlarged view of a narrow pressure prevention bar, (a) top view, (b) right side view. It is an enlarged view of a brake middle link, (a) top view, (b) right side view. It is an enlarged view of an intermediate link, (a) Top view, (b) Right side view. It is an enlarged view of a brake link, (a) Front view, (b) Right side view. The principal part expansion right view which shows the state which the obstruction contact | abutted to the narrow pressure prevention bar. The principal part expansion right view which shows the state in which the button of the stop switch was pushed in. The principal part expansion right view which shows the state which act | operated the brake by the brake action part.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. A walking riding and transporting vehicle 1 according to the present invention is used as a self-propelled transporting vehicle in a field. As shown in FIG. 1, a vehicle body 2 on which an engine (not shown) is mounted, and the vehicle body 2 Wheels 3 and 4 provided on the front left and right and rear left and right respectively, and fixed to the vicinity of the front central portion of the vehicle body 2, an operation handle 5 is attached to be rotatable in the front-rear direction of the vehicle body 2. A handle unit 6, a brake pedal 7 disposed on the right side of the handle unit 6, an accelerator pedal 8 disposed on the left side of the handle unit 6, and a loading platform 9 provided on the rear side of the vehicle body 2. And a seat 10 disposed between the handle unit 6 and the loading platform 9.

  Further, as shown in FIGS. 2 and 3, the walking passenger transport vehicle 1 is disposed at the lower front portion of the step 11 constituting the front side of the vehicle body 2, and pushes a button 12 a to activate the engine not shown in the figure. The stop switch 12 to be stopped, the narrow pressure preventing bar 13 disposed so as to face the stop switch 12, and the step 11 are connected so that the narrow pressure preventing bar 13 can be moved in the front-rear direction of the vehicle body 2. The brake intermediate link 14 to be supported, the intermediate link 15 connected to the narrow pressure prevention bar 13 and capable of pushing the button 12a, and the narrow pressure prevention bar 13 are provided and fixed to the brake pedal 7. And a brake actuating portion 17 for actuating a brake (not shown) by rotating the brake link 16.

  As shown in FIG. 1, the walking riding and transporting vehicle 1 according to the present invention is fixed by rotating the handle 5 to the front side of the vehicle body 2, as shown in FIG. 1. It can be used as a walking cart by standing and operating. In this case, the combined walking and transport vehicle 1 moves forward by traveling backward of the vehicle body 2 and moves backward by traveling forward of the vehicle body 2.

  The walking passenger transport vehicle 1 of the present invention is characterized by the configuration of step 11, stop switch 12, narrow pressure prevention bar 13, brake intermediate link 14, intermediate link 15, brake link 16 and brake operating portion 17, and the others. A well-known thing can be employ | adopted about the structure of these. Therefore, the following description will focus on these configurations.

  As shown in FIG. 4, the step 11 is attached to the U-shaped frame 18 that opens to the rear side and is formed so that the front side is lower than the rear side, and the inner peripheral front side of the frame 18. A step plate 19 having a protrusion 19a for mounting the handle unit 6 shown in FIG. 1 is formed at the center, and is formed to protrude below the front end of the frame 18, and the stop switch 12 shown in FIG. And an accommodating portion 20 for accommodating.

  As shown in FIG. 4B, the step plate 19 has a through hole 19b for connecting the brake intermediate link 14 shown in FIG. 19c is provided. Further, the step plate 19 includes a through hole 19d for attaching the brake link 16 shown in FIG. Further, the step plate 19 includes a through hole 19e for attaching the accelerator link 8a to which the accelerator pedal 8 shown in FIG. 2 is fixed at a position overlapping the through hole 19d in the right side surface of the protruding portion 19a.

  As shown in FIG. 5, the stop switch 12 pushes a button 12a provided therein, and stops the engine (not shown) connected via the wiring portion 12b. The stop switch 12 incorporates a compression spring (not shown), and the button 12a returns to its original position when the pushing force to the button 12a is released.

  As shown in FIG. 6, the narrow pressure preventing bar 13 includes a bar body 21 whose ends are bent rearward in accordance with the shape of the front end of the step 11 shown in FIG. 4, and the bar body 21. A left bar link 22 extending rearward from a position on the left side, and a right bar link extending rearward in parallel with the left bar link 22 from a position on the right side of the bar body 21 and shorter than the left bar link 22 23.

  As shown in FIG. 6, the left bar link 22 has a through hole 22a for connecting the intermediate link 15 shown in FIG. A cylindrical mission stopper 22b for stopping movement, a through hole 22c for connecting the brake intermediate link 14 shown in FIG. 7, and a spring hook 22d for connecting the tension spring 24 shown in FIGS. It is a long hole extending in the front-rear direction, and sequentially includes the brake actuating portion 17 for connecting the brake link 16 shown in FIG.

  As shown in FIG. 6B, the right bar link 23 is a through hole for connecting the intermediate link 15 together with the through hole 22a at a position overlapping the through hole 22a in a side view in the vicinity of the bar body 21. A hole 23a is provided. The right bar link 23 includes a rivet pin 23b for connecting the brake intermediate link 14 together with the through hole 22c at a position overlapping the through hole 22c in a side view near the end on the rear side.

  As shown in FIG. 7, the brake intermediate link 14 includes a columnar link shaft 25 and a left brake intermediate portion extending in the same direction perpendicular to the link shaft 25 from the vicinity of the left and right end portions of the link shaft 25. A link 26 and a right brake intermediate link 27 are provided.

  As shown in FIG. 7, the left brake intermediate link 26 includes a rivet pin 26a that is inserted through the through hole 22c of the narrow pressure preventing bar 13 shown in FIG.

  As shown in FIG. 7 (b), the right brake intermediate link 27 is located at a position overlapping the rivet pin 26a in the vicinity of the vicinity of the front end portion, and the rivet pin of the narrow pressure preventing bar 13 shown in FIG. 6 (b). A through hole 27a is provided through 23b.

  As shown in FIG. 8, the intermediate link 15 has a columnar link shaft 28 and a columnar shape, and right and left ends bent at right angles are connected to the vicinity of the left and right ends of the link shaft 28, respectively. The stop switch bar 29 is provided.

  The stop switch bar 29 is used to push in the button 12a of the stop switch 12 shown in FIG. 5, and in the vicinity of the left end, as shown in FIG. 8B, obliquely upward toward the link shaft 28 side. A spring hook 29a for connecting the tension spring 24 shown in FIG. 2 and FIG.

  As shown in FIG. 9, the brake link 16 is provided in a plate-like brake link main body 16a having an inclined surface at a substantially central portion and extending vertically, and provided near the upper end of the brake link main body 16a. A through hole 16b to which the brake wire 30 shown in FIG. 3 is attached, a brake link shaft 16c protruding from the upper side of the brake link main body 16a to the left side and inserted into the through hole 19d shown in FIG. 4, and the brake link main body 16a And a flat rivet 16d inserted into the brake actuating portion 17 shown in FIG.

  The state where the step 11, the stop switch 12, the narrow pressure preventing bar 13, the brake intermediate link 14, the intermediate link 15 and the brake link 16 configured as described above are assembled will be described with reference to FIGS.

  Both ends of the link shaft 25 of the brake intermediate link 14 are inserted into the through holes 19b and 19c provided in the protrusion 19a of the step plate 19 of the step 11, respectively. As a result, the brake intermediate link 14 is supported by the step 11 and can be rotated in the front-rear direction of the vehicle body 2.

  Further, the brake link shaft 16c of the brake link 16 is inserted into the through hole 19d provided in the protruding portion 19a of the step plate 19 of step 11 from the inside of the protruding portion 19a. As a result, the brake link 16 is supported by the step 11 and can rotate in the front-rear direction of the vehicle body 2.

  The stop switch 12 is accommodated in the accommodating portion 20 of step 11. At this time, the stop switch 12 is accommodated in a state in which the button 12a has a projecting length shorter than the pushable length of the button 12a and the button 12a projects from the accommodating portion 20 to the front side of the vehicle body 2.

  In the narrow pressure preventing bar 13, the rivet pin 26a of the left brake intermediate link 26 of the brake intermediate link 14 is inserted into the through hole 22c of the left bar link 22, and the rivet pin 23b of the right bar link 23 is connected to the brake intermediate link. 14 through the through hole 27a of the right brake intermediate link 27 to connect with the brake intermediate link 14.

  Further, the narrow pressure preventing bar 13 is connected to the brake link 16 by inserting the flat rivet 16 d of the brake link 16 into the brake operating portion 17 of the left bar link 22. As described above, the narrow pressure preventing bar 13 is held in step 11 via the brake intermediate link 14 and the brake link 16 so as to face the stop switch 12 and be movable in the longitudinal direction of the vehicle body 2 within a predetermined range.

  The intermediate link 15 is inserted through the through hole 22a of the left bar link 22 and the through hole 23a of the right bar link 23 at both ends of the link shaft 28, respectively. Accordingly, the intermediate link 15 is supported by the narrow pressure preventing bar 13 and can be rotated in the front-rear direction of the vehicle body 2.

  Further, the intermediate link 15 is connected to the spring hook 29 a via the spring hook 22 d of the left bar link 22 of the narrow pressure prevention bar 13 and the tension spring 24, so that the intermediate link 15 is stopped in a state of being biased to the rear side of the step 11. The switch bar 29 is stopped by contacting the mission stopper 22b of the left bar link 22. In this state, the stop switch bar 29 of the intermediate link 15 is at a position facing the button 12 a of the stop switch 12.

  In the brake link 16, the brake link shaft 16c inserted through the through hole 19d of the protruding portion 19a of the step plate 19 in step 11 is fixed to the brake pedal 7 outside the protruding portion 19a as described above. A brake wire 30 is connected to the through hole 16 b of the brake link 16 and is urged rearward by the brake wire 30.

  Further, as described above, the brake link 16 has the flat rivet 16d inserted through the brake operating portion 17 which is a long hole, and the flat rivet 16d is movable within the range of the brake operating portion 17. Thereby, the brake link 16 rotates against the urging force of the brake wire 30 when the user looks at the brake pedal 7, and pulls the brake wire 30 to operate the brake not shown in the drawing. Can do.

  In the walking riding and transporting vehicle 1 of the present invention described above, as shown in FIG. 10, an obstacle 31 such as a user is in contact with the bar body 21 of the narrow pressure prevention bar 13 from the front side of the vehicle body 2. The operation of each part when traveling to the front side of the vehicle body 2 will be described.

  In this state, when the walking passenger transport vehicle 1 advances to the front side of the vehicle body 2, the narrow pressure prevention bar 13 is pressed from the front side of the vehicle body 2 as shown in FIG. Move backward (arrow i). As a result, the stop switch bar 29 of the intermediate link 15 pushes the button 12 a of the stop switch 12. As a result, the engine (not shown) connected via the wiring portion 12b of the stop switch 12 stops.

  Next, in the case where the walking and transporting vehicle 1 travels to the front side of the vehicle body 2 even though the engine (not shown) is stopped, as shown in FIG. 12, the stop switch bar 29 However, the narrow pressure prevention bar 13 further moves to the rear side of the vehicle body 2 while pressing the button 12a (arrow ii). As a result, the brake operating unit 17 rotates the brake link 16 by pushing the flat rivet 16d of the brake link 16 against the urging force of the brake wire 30 at the front end of the vehicle body 2. As a result, the brake wire 30 connected to the through hole 16b of the brake link 16 is pulled (arrow iii) and the brake not shown in the figure is operated, so that the walking and transporting vehicle 1 is completely stopped.

  The intermediate link 15 is accommodated in the accommodating portion 20 of the step 11 in a state in which the stop switch 12 has a projecting length shorter than the pushable length of the button 12a and the button 12a projects to the front side of the vehicle body 2. As a result, the stop switch bar 29 is brought into contact with the accommodating portion 20 of step 11 without excessively pushing the button 12 a by the stop switch bar 29, and is moved forward of the vehicle body 2 against the urging by the tension spring 24. Rotate.

  Next, when the contact of the obstacle 31 with the narrow pressure prevention bar 13 is released, the intermediate link 15 rotating to the front side of the vehicle body 2 is urged by the tension spring 24 and the vehicle body 2. It turns to the rear side. As a result, the stop switch bar 29 of the intermediate link 15 returns to the state where it abuts on the mission stopper 22b of the left bar link 22 of the narrow pressure prevention bar 13. At this time, due to the reaction that the stop switch bar 29 receives from the accommodating portion 20, the narrow pressure preventing bar 13 moves to the front side of the vehicle body 2 as shown in FIG. 3 (arrow iv).

  The brake link 16 also moves the brake operating portion 17 provided on the left bar link 22 of the narrow pressure prevention bar 13 to the front of the vehicle body 2 as the narrow pressure prevention bar 13 moves to the front side of the vehicle body 2. Since it moves, the brake wire 30 connected to the through hole 16b is rotated by the urging of the vehicle body 2 to the rear side (arrow v) to stop the operation of the brake (not shown). Further, the button 12a of the stop switch 12 returns to the original position when the pushing force by the stop switch bar 29 of the intermediate link 15 is released. As described above, the walking passenger transport vehicle 1 of the present invention can travel again.

  In the walking passenger transport vehicle 1 of the present invention described above, when used as a walking transport vehicle, an obstacle 31 such as a user's leg abuts against the bar body 21 of the narrow pressure preventing bar 13 from the front of the vehicle body 2. By traveling to the front side of the vehicle body 2 in this state, the narrow pressure prevention bar 13 is pressed from the front side of the vehicle body 2 and the intermediate link 15 pushes the button 12a of the stop switch 12, so that the engine can be stopped. it can. Therefore, it is not necessary for the user to operate the stop switch 12, and safety can be improved.

  In addition, the walking and transporting vehicle 1 of the present invention has the narrow pressure prevention bar 13 further moved rearward of the vehicle body 2 when the vehicle travels to the front side of the vehicle body 2 due to inertia even after the engine is stopped. The brake link 16 is rotated by the brake operation unit 17 provided on the pressure prevention bar 13 to operate the brake. Thereby, since this walk riding combined transport vehicle 1 can be stopped completely, safety can be further improved.

  In addition, the structure of the walking passenger transport vehicle 1 shown in the present embodiment is only one aspect of the walking passenger transport vehicle according to the present invention, and various modifications can be made without departing from the gist of the present invention. Is possible.

  The walking riding and transporting vehicle according to the present invention can be applied to an on-field transporting vehicle and the like.

DESCRIPTION OF SYMBOLS 1 Walk riding combined use vehicle 2 Car body 12 Stop switch 12a Button 13 Narrow pressure prevention bar 15 Intermediate link 17 Brake operation part 20 Storage part

Claims (1)

It is a self-propelled walking and transporting vehicle,
A stop switch having a button for stopping the engine which is housed by projecting a length that is less than or equal to the pushable length from a housing part provided and fixed on the front surface of the vehicle body;
A pinching prevention bar supported by a brake intermediate link so as to be movable in the front-rear direction of the vehicle body in the storage portion;
An intermediate link that is rotatably supported at both ends on the front side of the pinching prevention bar and that faces the button that protrudes from the storage portion of the stop switch toward the front of the vehicle body,
One end is fixed to the intermediate link and the other end is connected to the anti-clamping bar so that the intermediate link moves in the direction of the button until the intermediate link abuts a transmission stopper provided on the anti-clamping bar. A tension spring that biases the rotation of the angle;
Along with the further movement of the anti-clamping bar in the storage part in the rearward direction, a brake is applied via a brake intermediate link by a brake operating part which is a long hole formed on the rear side of the anti-clamping bar. A brake link to be operated,
When the anti-clamping bar is pressed from the front side of the vehicle body and moves to the rear side of the vehicle body, the intermediate link pushes the button to stop the engine, and then resists the biasing force of the tension spring. The intermediate link that rotates and hits the storage portion while pressing the button, and the brake is operated by the brake operation portion of the pinching prevention bar via the brake link,
By releasing the pressure from the front side of the vehicle body against the pinching prevention bar, the tension spring moves the pinching prevention bar toward the front side of the vehicle body, and the intermediate link is separated from the button and the storage portion. A pedestrian transporter that is characterized by being allowed to walk.

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