JP2004130925A - Traveling vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make an arrangement so that right and left side walls forming pieces do not easily fall off. <P>SOLUTION: A fixed side hood forming body comprises the right and left side walls forming pieces extending to the front and rear directions, and a front wall forming piece extending to the right and left directions disposed between the front end parts of the right and left side walls forming pieces, wherein locking pins protruding downward from the lowest end of the right and left side walls forming pieces are provided, with the locking pins capable of being removably inserted into locking holes formed in the vehicle body frame for locking. At the upper inside of the right and left side walls forming pieces, a nip-holding piece or a to-be-nip-held piece is provided, while the nip-holding piece or to-be-nip-held piece is made to be removably nip-held by a to-be-nip-held piece or a nip-holding piece fitted on the hood forming body support frame provided so as to rise from the body frame, and the nip-holding piece or to-be-nip-held piece provided on the right and left side walls forming pieces are oriented from upper outside toward lower inside so that they are held in a sandwiched state with either the nip-holding piece or to-be-nip-held piece fitted on the hood forming body support frame at the locations of the right and left walls forming pieces being at the hood forming position. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a traveling vehicle.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as one form of a traveling vehicle, a motor unit mounted on a front portion of a vehicle body frame is covered with a bonnet. The bonnet is attached and detached between left and right side wall forming bodies and upper end edges of both left and right side wall forming bodies. It is formed from a ceiling part body freely attached and a front grille body detachably attached between the front ends of the left and right side wall bodies, and these formed bodies are attached to a bonnet body support frame attached to a vehicle body frame. I try to support them.
[0003]
The left and right side wall forming bodies each have a protruding holding piece protruding inward, while the bonnet forming body support frame is provided with a holding piece that is directed outward, and each holding piece is provided on each holding piece. The left and right side wall forming bodies can be attached by fitting the pieces and holding the sandwiched pieces (for example, see Patent Document 1).
[0004]
In this manner, by appropriately removing the left and right side wall forming body, the ceiling section forming body, and the front grill forming body, maintenance of the motor unit and the like can be easily performed.
[0005]
[Patent Document 1]
Japanese Utility Model Publication No. 60-11277
[Problems to be solved by the invention]
However, in the traveling vehicle described above, each side wall forming body is attached to the bonnet forming body support frame via the holding piece and the holding piece, and the holding piece projects inward while the holding piece projects outward. Directionally, because the clamped piece is fitted into the clamped piece in a substantially horizontal direction and is clamped, when the vibration in the lateral direction occurs due to unevenness of the road surface during traveling of the traveling vehicle In addition, there is a problem that the held piece comes off from the held piece and each side wall forming body easily falls off.
[0007]
In addition, when the holding force of the holding piece is set to be large, the held piece held by the holding piece becomes difficult to come off, and there is a problem that each side wall forming body cannot be easily removed.
[0008]
Moreover, the bonnet has a left and right side wall forming body, a ceiling part forming body detachably mounted between upper end edges of both left and right side wall forming bodies, and a front grille formation detachably mounted between front end portions of the left and right side wall forming bodies. Even if it is desired to partially inspect the upper side of the prime mover part because it is formed from the body, it is necessary to remove either the left or right side wall forming body and expose the entire side surface of the prime mover part. In addition, the work of removing such a large side wall forming body is also complicated.
[0009]
[Means for Solving the Problems]
Therefore, according to the present invention, in a traveling vehicle in which a motor unit mounted on a front part of a vehicle body frame is covered with a bonnet, the bonnet is fixed to the vehicle body frame, and the bonnet is freely openable and closable on the fixed side bonnet formation. The fixed side bonnet formed body is formed from a movable side bonnet formed body attached to the front wall and a left and right side wall formed piece extending in the front-rear direction and a front wall disposed between the front ends of the left and right side wall formed pieces extending in the left and right direction. And a locking pin protruding from a lower end portion of the left and right side wall forming piece, and the locking pin is removably inserted into a locking hole formed in the vehicle body frame to enable locking. A holding piece or a holding piece is provided on the upper inside of the left and right side wall forming pieces, and the holding piece or the holding piece is detachably held by the holding piece or the holding piece provided on the vehicle body frame side. The holding piece or the holding piece provided on the left and right side wall forming piece is directed from the upper outside to the lower inside, and the holding piece or the holding piece attached to the support frame such as a capacitor at the bonnet forming position of the left and right side wall forming piece. It is intended to provide a traveling vehicle characterized in that the traveling vehicle is held in a state of being held with one piece.
[0010]
The present invention also provides a ring-shaped locking pin support having elasticity attached to the periphery of the locking hole, and inserts and locks the locking pin into the locking pin support. The locking pin is made to be able to swing freely in the locking hole, and the left and right side wall forming pieces are pivoted from the position inclined outward to the position where the locking pin is raised almost vertically about the locking pin. The present invention is also characterized in that the holding pieces or holding pieces provided on the left and right side wall forming pieces at the positions where they are set are in a holding state with the holding pieces or holding pieces attached to the support frame such as a capacitor.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described.
[0012]
That is, in the traveling vehicle according to the present invention, the motor unit mounted on the front part of the vehicle body frame is covered with the bonnet, and the bonnet is fixed on the vehicle body frame on the fixed side bonnet forming body and on the fixed side bonnet forming body. The fixed-side bonnet forming body is formed between the left and right side wall forming pieces extending in the front-rear direction and the left and right side wall forming pieces extending in the left-right direction. And a front wall forming piece.
[0013]
A locking pin protrudes from the lower ends of the left and right side wall forming pieces, and the locking pin is removably inserted into a locking hole formed in the vehicle body frame to be lockable.
[0014]
On the other hand, a holding piece or a holding piece is provided on the upper inside of the left and right side wall forming pieces, and the holding piece or the holding piece can be detachably held by the holding piece or the holding piece provided on the vehicle body frame side. The holding piece or the holding piece provided on the side wall forming piece is directed from the upper outside to the lower inside, and is held between the holding piece or the holding piece attached to the support frame such as a capacitor at the bonnet forming position of the left and right side wall forming piece. It is in a state.
[0015]
In addition, a ring-shaped locking pin support having elasticity is attached to the periphery of the locking hole, and the locking pin is inserted into the locking pin support and locked, and the locking pin is engaged. It is made to be able to swing freely in the stop hole, and by turning the left and right side wall forming pieces from the position inclined outward to the position where they are raised almost vertically about the same locking pin, Thus, the holding piece or the holding piece provided on the left and right side wall forming piece is in a holding state with the holding piece or the holding piece attached to the support frame such as a capacitor.
[0016]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
A shown in FIG. 1 is a traveling vehicle according to the present invention. In the traveling vehicle A, a vehicle body frame 2 is erected between a pair of left and right crawler traveling parts 1 and 1, and a front part of the vehicle body frame 2 is provided. A prime mover unit 3 is provided, an operating unit 4 is provided at the rear, and a transmission unit 5 is provided below the operating unit 4.
[0018]
As shown in FIGS. 1 to 3, each traveling unit 1 includes a traveling frame 10 extending in the front-rear direction, front and rear driven wheels 11 and 12 attached to front and rear ends of the traveling frame 10, respectively. A drive wheel 13 is disposed between the front and rear driven wheels 11 and 12 and at an upper position, and a crawler belt 14 wound between the driven wheels 11, 12 and 13 and formed into a triangular shape in a side view. I have. Reference numeral 15 denotes a front driven wheel support shaft, 16 denotes a rear driven wheel support shaft, 17 denotes a drive wheel support shaft, 18 denotes an equalizer, 19 denotes a crawler belt slippage prevention member, and 20 denotes a rolling wheel.
[0019]
As shown in FIGS. 1 and 4, the motor unit 3 includes an engine (not shown) and the like disposed between the front portions of a pair of left and right vehicle body frame forming pieces 30, 30 forming a part of the vehicle body frame 10. These are covered with a bonnet 37.
[0020]
Here, the bonnet 37 is, as shown in FIGS. 2 to 5, a fixed-side bonnet forming body 40 fixed to the front portion of the vehicle body frame 2, and a movable side hood attached to the fixed-side bonnet forming body 40 so as to be freely opened and closed. The bonnet forming body 41 is formed.
[0021]
As shown in FIGS. 2 to 5, the fixed side bonnet forming body 40 has left and right side wall forming pieces 42, 42 extending in the front-rear direction fixed on a pair of left and right body frame forming pieces 30, 30. A front wall forming piece 44 extending in the left-right direction is fixed on a front frame forming piece 43 erected between the front end portions of the two vehicle body frame forming pieces 30, 30, and left and right ends of the front wall forming piece 44. The portions are connected to the front ends of the left and right side wall forming pieces 42, 42.
[0022]
In addition, the left and right side wall forming pieces 42, 42 are formed by extending the rectangular plate-like side wall forming main pieces 42a, 42a extending in the front-rear direction and the upper end edges of the side wall forming main pieces 42a, 42a inward. The upper flange pieces 42b, 42b and the lower flange pieces 42c, 42c formed by extending the lower end edges of the side wall forming pieces 42a, 42a inward are formed in a U-shape in a front view.
[0023]
The movable-side bonnet forming body 41 is formed by elastically forming left and right side wall forming pieces 46, 46 extending in the front-rear direction and a ceiling forming piece 47 integrally formed in a bridging shape between upper end edges of the left and right side wall forming pieces 46, 46. The front grille 48 is stretched over the front part of the ceiling forming piece 47 and the front end parts of the left and right side wall forming pieces 46, 46 by a constant molding with a synthetic resin having force.
[0024]
As shown in FIGS. 2 to 4, the movable side bonnet forming body 41 has a ceiling forming piece 47 at a center upper portion of a steering column supporting frame piece 49 provided in the driving section 4 via a pivotal support body 50. It pivots and can be opened and closed freely.
[0025]
The pivot body 50 is attached with a pivot piece 51 formed in a U-shape in plan view on the upper portion of the steering column support frame piece 49, and the base end of the pivot arm 52 is attached to the rear inner surface of the ceiling forming piece 47. Attachment, the distal end of the pivot arm 52 is detachably pivotably connected to the pivot piece 51 via a pivot pin 53 whose axis is oriented in the left-right direction.
[0026]
As shown in FIGS. 2 to 4, a horizontal frame piece 54 extending in the left-right direction is laid between the front portions of the pair of left and right body frame forming pieces 30, 30. A support frame 55 such as a capacitor formed in a square frame shape in a front view is provided upright. A stand pivot piece 56 is provided at the upper right end of the support frame 55 such as a capacitor. The base 57a of the stand 57 extending in the direction is pivotally supported so that the stand 57 is rotatable between a non-use position in which the stand 57 lays substantially horizontally and a use position in which the stand 57 stands upright. A stand receiving piece 58 is provided at the upper left end of the supporting frame 55 such as a condenser, and receives the tip 57b of the stand 57 lying substantially horizontally by the stand receiving piece 58 and arranged at the non-use position.
[0027]
In this manner, the movable-side bonnet forming body 41 can be smoothly opened and closed in the vertical direction about the pivot pin 53, and the movable-side bonnet forming body 41 can be moved to the unused position with the movable-side bonnet forming body 41 opened. The placed stand 57 is turned to the use position to be in the upright state, and the lower end 41a of the side edge of the movable bonnet forming body 41 is placed on the front end 57b of the stand 57, so that the stand 57 is movable. The side hood forming body 41 can be held in an open state.
[0028]
As shown in FIGS. 2 to 4, a closing lock means 60 is provided between the front lower end of the movable bonnet forming body 41 and the front part of the vehicle body frame 2. The bonnet forming body 41 can be locked in a closed state.
[0029]
That is, as shown in FIGS. 2 to 4, the closing lock means 60 vertically suspends the locking hook receiver 62 at the lower front end of the movable bonnet forming body 41 via the support plate 61, A boss portion 64 whose axis is oriented in the front-rear direction is attached to a front frame forming piece 43 erected between the front end portions of the pair of left and right body frame forming pieces 30, 30 via a support bracket 63. The lower end of the locking hook body 66 is attached to the rear end of the support shaft 65 through the shaft 65, and the upper end of the operating lever 67 is attached to the front end of the support shaft 65. While the base end of the unlocking operation piece 68 extending in the left-right direction is connected to the part, the distal end operating part 68a of the unlocking operation piece 68 is passed through an insertion hole 69 formed in the left vehicle body frame forming piece 30. Protruding outward It is caused.
[0030]
The locking hook receiver 62 is formed by a pair of front and rear support pieces 62a and 62b extending in the vertical direction and a main receiver piece 62c integrally formed in a horizontal shape between the lower ends of both support pieces 62a and 62b. It is formed in a U-shape.
[0031]
The locking hook body 66 extends in the up-down direction and has a lower end fixed to the rear end of the boss 64 and a fitting piece 66b formed with a fitting recess 66a at the upper end, and A locking hook 66d having a lower end connected to the rear end of the support shaft 65 and having a locking hook 66c formed at the upper end, a base end of the locking hook 66d and a boss. A torque spring 66e interposed between the locking hook 66c and the locking hook 66c of the locking hook 66d. It can be held by elastic biasing force. 66f is a sliding inclined surface formed at the upper end of the locking hook 66c.
[0032]
In this manner, when the movable bonnet forming body 41 is locked in the closed state, the movable bonnet forming body 41 is closed by rotating the movable side bonnet forming body 41 downward, and the receiving main piece of the locking hook receiving body 62 is locked. When the locking hook 66c is fitted to the fitting concave portion 66a of the fitting piece 66b while sliding the sliding hook 62c on the sliding inclined surface 66f formed at the upper end of the locking hook 66c, the locking hook 66c reduces the elastic urging force of the torque spring 66e. 8 counterclockwise in the front view shown in FIG. 8 to open the fitting concave portion 66a, the receiving main piece 62c fits into the fitting concave portion 66a, and the locking hook 66c is Due to the elastic biasing force of the torque spring 66e, the torque spring 66e rotates clockwise and engages with the main receiving piece 62c to be locked.
[0033]
On the other hand, when the movable bonnet forming body 41 is opened, the distal end operation portion 68a of the unlocking operation piece 68 is gripped and pulled outward at the front side position of the vehicle body, so that the The locking hook 66d can be rotated counterclockwise in the front view shown in FIG. 4 against the elastic biasing force of the torque spring 66e to release the locked state. The bonnet forming body 41 can be rotated upward to be opened.
[0034]
In the configuration as described above, the feature of the embodiment according to the present invention lies in the following configuration, which will be described with reference to FIGS.
[0035]
That is, as shown in FIGS. 2 to 5, locking pins 70, 70, 70, 70 project downward from front and rear portions of lower flange pieces 42 c, 42 c of left and right side wall forming pieces 42, 42, respectively. Then, the locking pins 70, 70, 70, 70 can be freely inserted and removed into locking holes 71, 71, 71, 71 formed in the upper flange portions 30a, 30a of the left and right vehicle body frame forming pieces 30, 30, respectively. On the other hand, the holding pieces 72, 72 are provided on the upper inside of the left and right side wall forming pieces 42, 42 via holding pieces support members 75, 75, and the holding pieces 72, 72 are connected to the capacitors and the like. The holding pieces 73, 73 attached to the support frame 55 and the steering column support frame piece 49, respectively, can be detachably held.
[0036]
Here, the holding piece 72 is formed into a bifurcated tip shape by bending a leaf spring having an elastic force, while the held piece 73 is provided with a pair of front and rear support pieces 73a, 73a extending in the left-right direction. The holding piece 73b is extended from the supporting pieces 73a, and is formed from a stick-shaped holding piece 73b provided between the tips of the holding pieces 73a. The holding piece 73b is fitted and held by the holding piece 72 through the tip opening 72a. I have to.
[0037]
Then, the holding pieces 72, 72 provided on the left and right side wall forming pieces 42, 42 are directed at the front end openings 72a, 72a from the upper side to the lower side, and are covered at the bonnet forming positions of the left and right side wall forming pieces 42, 42. The holding book piece 73b is held in a sandwiched state.
[0038]
A ring-shaped locking pin support 74 having elasticity is attached to the periphery of each locking hole 71 described above, and the locking pin 70 is inserted into the locking pin support 74 from above. At the same time, the locking pin 70 is made swingable in the locking hole 71, and each side wall forming piece 42 is erected substantially vertically from a position where the side wall forming piece 42 is inclined outwardly around the locking pin 71. By rotating to the set position, the holding pieces 72 provided on the respective side wall forming pieces 42 at the position where they stand substantially vertically are in a state of holding the holding piece 73b.
[0039]
In this embodiment, the holding pieces 72, 72 are attached to the side wall forming pieces 42, while the holding pieces 73, 73 are attached to the condenser frame support frame 55 and the steering column support frame piece 49 on the vehicle body side. On the other hand, the holding pieces 73, 73 are attached to each side wall forming piece 42, and the holding pieces 72, 72 are attached to the condenser frame 55 and the steering column support frame 49 on the vehicle body side. You can also.
[0040]
Also in this case, each side wall forming piece 42 is pivoted from the position inclined outward to the position where the side wall forming piece 42 is substantially vertically erected around the locking pin 71, so that each side wall is formed at the substantially vertically erected position. The holding piece 73 a of the holding piece 73 provided on the forming piece 42 is set to be in a state of being held by the holding piece 72.
[0041]
【The invention's effect】
(1) According to the first aspect of the present invention, in a traveling vehicle in which a motor unit mounted on a front part of a body frame is covered with a bonnet, the bonnet includes a fixed-side bonnet fixed body fixed to the body frame, and the fixed-side bonnet. The fixed-side bonnet formed body is formed from a movable bonnet formed body that can be freely opened and closed on the formed body, and the left and right side wall formed pieces extending in the front-rear direction and the front ends of the left and right side wall formed pieces extending in the left-right direction. A front wall forming piece disposed therebetween, a locking pin protruding from the lower end of the left and right side wall forming piece, and the locking pin is removably inserted into a locking hole formed in the vehicle body frame. On the other hand, a holding piece or a holding piece is provided on the upper inside of the left and right side wall forming pieces, and the holding piece or the holding piece is attached to the holding piece or the holding piece provided on the body frame side. The left and right side wall forming pieces can be freely pinched, and the holding pieces or the held pieces provided on the left and right side wall forming pieces are directed from the upper side to the lower side and attached to the bonnet forming body support frame at the bonnet forming position of the left and right side wall forming pieces. The holding piece or the holding piece is in a holding state.
[0042]
In this way, even when lateral vibrations occur due to unevenness of the road surface during traveling of the traveling vehicle, the left and right side wall forming pieces are separated from the locking pins locked in the locking holes of the vehicle body frame from above and outside. It is fixed by the clamped piece or the clamped piece attached to the bonnet forming body support frame in a downward direction and fixed by the clamping piece or the clamped piece in the holding state, and fixed from above by the movable side bonnet formed body. Therefore, it does not easily fall off.
[0043]
In addition, by opening the movable bonnet forming body, the motor unit can expose the upper surface of the motor unit, the upper halves of the left and right side walls, and the upper front surface of the motor unit, thereby facilitating inspection work of the motor unit. It can be carried out.
[0044]
At this time, if it becomes necessary to remove one of the right and left side wall forming pieces as necessary, the side wall forming piece is pulled upward and outward, and the holding piece or the held The piece is pulled out from the to-be-clamped piece or the to-be-clamped piece attached to the hood forming body support frame, and the locking pin protruding from the lower end of the side wall forming piece comes out of the locking hole, facilitating the side wall forming piece. Can be removed.
[0045]
Also, by following the opposite procedure, the side wall forming piece can be easily attached.
[0046]
(2) According to the second aspect of the present invention, a ring-shaped locking pin support having elasticity is attached to the periphery of the locking hole, and the locking pin is inserted into the locking pin support to engage the locking pin. The locking pin is swung freely in the locking hole, and the left and right side wall forming pieces are rotated from the position inclined outward to the position where the left and right side wall forming pieces stand substantially vertically about the locking pin. By being moved, the holding pieces or the holding pieces provided on the left and right side wall forming pieces at the upright position are in a holding state with the holding pieces or the holding pieces attached to the bonnet forming body support frame.
[0047]
In this way, when attaching either the left or right side wall forming piece, the locking pin is inserted into the elastic ring-shaped locking pin support attached to the peripheral edge of the locking hole and locked. By rotating the wall forming piece from a position inclined outward to a position where the wall forming piece stands substantially vertically around the locking pin, the pinch provided on the left and right side wall forming pieces at the standing position. The piece or the to-be-clamped piece can be made to be in the state of being clamped by the to-be-clamped piece or the to-be-clamped piece attached to the hood forming body support frame, and the side wall-forming piece can be easily and reliably attached.
[0048]
Further, by following the opposite procedure, the side wall forming piece can be easily and reliably removed.
[Brief description of the drawings]
FIG. 1 is an explanatory side view of a traveling vehicle according to the present invention.
FIG. 2 is an enlarged side view of the bonnet.
FIG. 3 is an enlarged plan view of the hood.
FIG. 4 is an enlarged front view of the hood.
FIG. 5 is an explanatory view of mounting a left wall forming piece.
[Explanation of symbols]
A running vehicle 1 running section 2 body frame 3 prime mover section 4 driving section 5 mission section

Claims (2)

In a traveling vehicle in which a motor unit (3) mounted on a front part of a body frame (2) is covered with a bonnet (37),
The bonnet (37) is composed of a fixed bonnet forming body (40) fixed to the vehicle body frame (2) and a movable bonnet forming body (41) mounted on the fixed bonnet forming body (40) to be openable and closable. Forming
The fixed side bonnet forming body (40) is a front wall extending between the left and right side wall forming pieces (42, 42) extending in the front-rear direction and the left and right side wall forming pieces (42, 42). Forming pieces (44),
Locking pins (70, 70) protrude from lower end portions of the left and right side wall forming pieces (42, 42), and the locking pins (70, 70) are formed in locking holes (71) formed in the vehicle body frame (2). , 71) so that it can be inserted and removed freely and locked, while holding pieces (72, 72) or held pieces (73, 73) are provided on the upper inside of the left and right side wall forming pieces (42, 42). The holding pieces (72, 72) or the holding pieces (73, 73) can be detachably held by the holding pieces (73, 73) or the holding pieces (72, 72) provided on the body frame (2) side. age,
The holding pieces (72, 72) or the held pieces (73, 73) provided on the left and right side wall forming pieces (42, 42) are directed from the upper side to the lower side to form the left and right side wall forming pieces (42, 42). A traveling vehicle characterized by being held in a sandwiched state with clamped pieces (73, 73) or clamped pieces (72, 72) attached to a support frame (55) such as a capacitor at a bonnet forming position. A ring-shaped locking pin support (74) having elasticity is attached to the periphery of the locking hole (71), and the locking pin (70) is inserted into the locking pin support (74) to engage. At the same time, the locking pin (70) is made swingable in the locking hole (71), and the left and right side wall forming pieces (42, 42) are outwardly centered on the locking pin (70). By pivoting from the inclined position to a position that stands substantially vertically, the holding pieces (72, 72) or the held pieces (73) provided on the left and right side wall forming pieces (42, 42) at the standing position. , 73) in a state of being clamped with a clamped piece (73, 73) or a clamped piece (72, 72) attached to a support frame (55) such as a capacitor. vehicle.

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