JP3360208B2 - Both side dump bucket device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-sided dump bucket device mounted on a work vehicle such as a wheel loader.

[0002]

2. Description of the Related Art An example of a double-sided dump bucket device mounted on a working vehicle such as a wheel loader is disclosed in, for example, Japanese Utility Model Publication No.
No. -6118. The both-side dump bucket device can scoop earth and sand, snow, and the like into the bucket and discharge (side dump) the scooped earth, snow, and the like to the right or to the left as well as to the front in the traveling direction of the vehicle. Therefore, operations such as loading earth and sand on a truck and loading snow on a truck in a narrow space such as in a tunnel can be performed efficiently.

[0003] This type of double-sided dump bucket device,
The bucket body and a support member that supports the bucket body are connected by a pair of hinge pins, and the connection by one of the hinge pins is released so that the bucket body can swing about the other hinge pin with respect to the support member. It is configured to be attached. The bucket body is oscillated by an actuator such as a hydraulic cylinder interposed between the bucket body and the support member. The direction of the side dump of the both side dump bucket devices is set in accordance with the work mode of the work vehicle. That is, one of the pair of hinge pins is removed, and the direction of the side dump is set to the right side or the left side. The removed hinge pin is stored in an appropriate place such as a cab of a working vehicle or a warehouse. When the direction of the side dump is to be changed again, the hinge pin that has been removed and stored is attached to the original position again, and the other hinge pin is removed. Then, the other hinge pin removed is stored this time.

[0004]

The above-mentioned conventional double-sided dump bucket apparatus has the following problems to be solved. (1) The hinge pin is formed by one relatively long pin,
Further, when the bucket device is large, it has a weight that is difficult to hold by human power. Therefore, if the frequency of changing the direction of the side dump is high, it is complicated and troublesome to attach, remove, transport, and store the hinge pin. In addition, for attachment and detachment, it is necessary to assemble or disassemble means for preventing the pin from coming off and turning, as well as simply removing and inserting the hinge pin. (2) Special storage management is necessary so that the removed hinge pin is not damaged or lost during storage. (3) The hinge pin hole from which the hinge pin has been removed
It is easily polluted and damaged by foreign substances such as snow. Therefore, when the hinge pin is reinstalled, it is necessary to clean and repair the pin hole.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and a technical problem of the present invention is that a hinge pin in which a connection between a bucket body and a support member is released is held and stored compactly in the bucket device itself. An object of the present invention is to provide a double-sided dump bucket device that prevents damage to a hinge pin hole due to foreign matter, facilitates re-attachment of a hinge pin, and simplifies the structure of a hinge pin attachment portion.

[0006]

According to the present invention, as a two-sided dump bucket device for solving the above technical problem, a bucket body and a support member supporting the bucket body are connected by a pair of hinge pins. In a two-sided dump bucket device in which the connection by one of the hinge pins is released and the bucket body is swingably mounted on the support member about the other hinge pin, each of the hinge pins is formed to be bendable. A double-sided dump bucket device is provided.

[0007] In the double-sided dump bucket device according to the present invention, the hinge pin is formed to be bendable. Therefore, the hinge pin from which the connection between the bucket body and the support member is released can be stored compactly in a bent state.

[0008] In a preferred embodiment, the hinge pin is divided into at least two in its axial direction,
The connection is connected by connection pins. Also, the bucket body and the support member are connected by attaching the hinge pin to a hinge pin hole passing through the bucket body and the support member. Then, when the hinge pin is pulled out from the hinge pin hole until the hinge pin can be bent, the connection between the bucket body and the support member is released.

Therefore, with the hinge pin pulled out from the hinge pin hole to a position where it can be bent, the hinge pin can be held in the bucket device, that is, compactly held and stored in the bucket device. Further, since a part of the hinge pin is inserted into the hinge pin hole, it is possible to prevent a foreign object from entering the hinge pin hole or being damaged by the foreign object.

In a preferred embodiment, a storage case for storing a portion of the hinge pin extracted from the hinge pin hole is provided in the bucket body or the support member. The storage case has a cover that can be opened and closed, and the cover is always kept closed to restrict the movement of the hinge pin in the direction of coming out of the hinge pin hole. Further, the storage case has a slit extending in the insertion and removal direction of the hinge pin, and the slit is engaged with the hinge pin to restrict the movement in the rotation direction about the axis of the hinge pin.

Therefore, the portion extracted from the hinge pin hole is sufficiently protected against obstacles and the like by the storage case. In addition, since the hinge pin is prevented from coming out of the hinge pin hole by the cover of the storage case, and is prevented from rotating in the hinge pin hole by the slit, the hinge pin hole and the hinge pin are conventionally provided with a means for retaining and rotating the hinge pin. No need. Therefore, the structure of the hinge pin mounting portion can be simplified, and
The attachment and detachment of the hinge pin can be easily performed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a double sided dump bucket device constructed according to the present invention will be described below in detail with reference to the accompanying drawings.

Referring to FIG. 1 to FIG. 3, the double-sided dump bucket device, generally designated by the reference numeral 2, comprises a bucket body 4 and a support member 6 supporting the bucket body 4 by a pair of hinge pins 8,8. The bucket body 4 is connected to the support member 6 so as to be swingable about the other hinge pin 8 by connecting and releasing the connection by one of the hinge pins 8. Then, the bucket body 4 is swung by a hydraulic cylinder 10 interposed between the bucket body 4 and the support member 6. That is, as shown in FIG. 2, the bucket body 4 is centered on one hinge pin 8 (identified by 8R) in a direction indicated by an arrow R or the other hinge pin 8 (identified by 8L). And swings in the direction indicated by the arrow L. As will be described in detail later, the support member 6 is provided with a storage case 12 that stores the hinge pins 8 at respective projecting portions of the pair of hinge pins 8.

The bucket body 4 and the support member 6 themselves do not constitute a new feature of the present invention in the double-sided dump bucket device 2 constructed in accordance with the present invention, but may have a known form. Therefore, the description of the details of those configurations is omitted in this specification. In addition, the shape of the mounting portion of the bucket body 4 and the support member 6 of each of the pair of hinge pins 8, 8 and the configuration thereof may be the same. Therefore, the following description will be made with one hinge pin 8 unless otherwise specified.

The bucket body 4 is provided with a bucket upper boss 4a and a bucket lower boss 4b projecting from the bucket body 4 to the support member 6 side for connecting to the support member 6 via the hinge pin 8. A hinge pin hole 9a for inserting the hinge pin 8 is formed in each of the bucket upper boss 4a and the bucket lower boss 4b with the axis of the hole being the same.

The support member 6 is similarly connected to the bucket body 4
A support upper boss 6a and a support lower boss 6b for coupling to each other via a hinge pin 8 are provided. The bucket upper boss 4a is located between the support upper boss 6a and the support lower boss 6b. Therefore, the bucket lower boss 4b is located on the other end side of the support lower boss 6b. Each of the upper support boss 6a and the lower support boss 6b is formed with a hinge pin hole 9b for inserting the hinge pin 8 with the same axis of the hole. The hinge pin hole 9a of the bucket body 4 and the pin hole 9b of the support member 6 are formed in the same size, and the axis of each pin hole is combined with the same axis (the state shown in FIG. 3) to form the hinge pin hole 9. are doing.
That is, the hinge pin hole 9 a and the hinge pin hole 9 b form the hinge pin hole 9 penetrating the bucket body 4 and the support member 6.

Hinge pin hole 9a and hinge pin hole 9b
Are provided with bearing members, but are not shown. The support member 6 is formed with a pin hole 6c and a hook 6d, which are well-known mechanisms for mounting on an arm device (not shown) of a work vehicle such as a wheel loader. Two screw holes 6e for attaching the storage case 12 are formed on the upper surface of the support upper boss 6a. The bucket body 4 and the support member 6
The bosses 4a, 4b, 6a, 6b and the hinge pin holes 9a, 9b may be substantially the same as the configuration of a conventional double sided dump bucket device formed by welding and drilling steel members.

The hinge pin 8 will be described with reference to FIGS. 4 and 5 together with FIG. The hinge pin 8 is bendably divided into two parts in the axial direction, a distal end part 8a and a base end part 8b, and the hinge pin 8 is connected by a connection pin 8c. The material (hardened steel used) and the size (thickness) of the distal end portion 8a and the proximal end portion 8b may be the same as the hinge pin used in the conventional both side dump bucket device. Each of the connecting portions of the distal end portion 8a and the proximal end portion 8b has a bifurcated shape on the proximal end portion 8b side, and a protruding shape fitted on the distal end portion 8a side between the two forked portions. A pin hole orthogonal to the axial direction is formed, and a steel connecting pin 8c is passed through this pin hole and is prevented from coming off by a snap ring 8d. Thus, the hinge pin 8 is formed to be bendable about the axis of the connection pin 8c. At the other end of the base end 8b, a large-diameter step 8g having a diameter larger than the pin diameter is formed, and a hook plate 8f is provided upright. A hinge pin 8 is provided on the hook plate 8f.
The hole 8e used when attaching, detaching, etc. is formed.

The length of each of the distal end portion 8a and the proximal end portion 8b in the axial direction of the hinge pin is such that the hinge pin 8 is
When the bucket body 4 and the support member 6 are inserted into the hinge pin holes 9a on the side and the hinge pin holes 9b on the side of the support member 6 so as to connect them (when the hinge pins 8 are shown by solid lines in FIG. 3), the tip ends. Boss 4 by part 8a
b and the boss 6b are connected so that the boss 4a and the boss 6a are connected by the base end 8b. Further, when the hinge pin 8 is pulled out from the hinge pin hole 9 until the hinge pin 8 can be bent (when the hinge pin 8 is in a state shown by a two-dot chain line in FIG. 3), the length of the tip end portion 8a is determined by the bucket body 4 and the support member 6. Are set in association with the axial lengths of the hinge pin holes 9b of the boss 6a and the hinge pin holes 9a of the boss 4a.

The storage case 12 will be described with reference to FIGS. 6 to 8 together with FIG. 3. The storage case 12 is formed in a substantially rectangular parallelepiped shape by a steel material such as a steel plate. The storage case 12 includes a case body 12a having an open upper surface, a cover 12b that opens and closes the open upper surface, and a case body 1.
Two hinges 12c for attaching cover 12b to 2a
And a handle 12d as a handle attached to the cover 12b. The hinge 12c is provided with a spring and normally urges the cover 12b in a direction to close the opening of the case body 12a.

The case body 12a has through-holes 12e for attaching the storage case 12 to the support member 6.
Are provided on the bottom plate. The bottom plate is further formed with a through-pin hole 12f larger than the diameter of the hinge pin 8 through which the hinge pin 8 passes. A partition plate 12g having a semicircular notch for supporting the hinge pin 8 stored in the storage case 12 is attached to the case body 12a near the through pin hole 12f. In addition, the case body 1
A slit 12h connecting the opening side and the bottom plate side of 2a is formed, and a semicircular notch 12j supporting the hinge pin 8 to be stored is formed on the other end surface. The cover 12b has a semicircular notch 12k corresponding to the semicircular notch 12j.

When the storage case 12 is attached to the support member 6, the case body 12 is aligned with the upper surface of the support upper boss 6a of the support member 6, the through hole 12f and the hinge pin hole 9b of the support upper boss 6a are aligned. 12e
The bolt 13 is attached to the upper boss 6a by tightening it into the screw hole 6e.

Referring to FIGS. 3 and 9, connection and disconnection of the bucket body 4 and the support member 6 by the hinge pins 8 of the double-sided dump bucket device 2 according to the present invention, and storage of the hinge pins 8 will be described.

(1) Connection by hinge pin: In order to connect the bucket body 4 and the support member 6 by the hinge pin 8, first, the cover 12b, which is normally biased to the closed state of the storage case 12, is gripped by the handle 12d. open,
It is kept in the open state (the state shown in FIG. 8). Straighten the bendable hinge pin 8 and support upper boss 6
From the side a, a hinge pin hole 9 penetrating through hole 12 f of storage case 12, support member 6 and bucket body 4
(9b, 9a), the hinge pin 9 is inserted in the direction indicated by the arrow X until the large-diameter step 8g of the hinge pin 9 comes into contact with the support upper boss 6a. At this time, the hook plate 8f of the hinge pin 8 is fitted into the slit 12f of the storage case 12. When the insertion is completed, the cover 12b of the storage case 12 is closed. Thus, the bucket body 4 and the support member 6 are connected to the hinge pins 8.
(The state shown by the solid line in FIG. 3).

(2) Preventing hinge pins from coming off and rotating:
The cover 12b of the storage case 12 is constantly urged in the closing direction. Therefore, the movement of the hinge pin 8 in the disengaging direction (the direction indicated by the arrow Y) is prevented and restricted by the hook plate 8f at the end of the hinge pin 8 abutting on the cover 12b. In addition, since the hook plate 8f and the slit 12h of the storage case 12 are fitted, a detent for stopping rotation of the hinge pin 8 about the axis of the pin is formed.

(3) Disconnection of hinge pin: In order to release the connection of the bucket body 4 and the support member 6 by the hinge pin 8, first, the cover 12b, which is normally urged to be in the closed state, is handled by the handle. 12d is gripped open and held in an open state (the state shown in FIG. 8). Pin 8
The hinge pin 8 is pulled out from the hinge pin hole 9 by applying a finger or an appropriate pulling means to the hole 8e of the hook plate 8f (in the direction indicated by arrow Y). When the hinge pin 8 is pulled out to a position where it can be bent, the connection between the bucket body 4 and the support member 6 by the hinge pin 8 is released (FIG. 3).
At the position indicated by the two-dot chain line).

(4) Storage of hinge pin: The hinge pin 8 is bent at the base end 8b into the storage case 12 in the direction indicated by the arrow Z around the connection pin 8c. In the storage case 12, the base end portion 8b is held by semicircular notches 12g, 12j, and 12k. When the storage is completed, the cover 12b is closed.

The operation of the double-sided dump bucket device 2 as described above will be described with reference to FIGS.

(1) Changing the direction of the side dump: To change the direction of the side dump, open the cover 12b of the storage case 12 and pull out the hinge pin 8 to a position where it can be bent. Support member 6
Is disconnected. The cover 1 of the storage case 12
Opening 2b, bending the hinge pin 8 stored in the storage case 12 straight, and inserting it into the hinge pin hole 9, the bucket body 4 and the support member 6 are connected. Therefore, since the attachment and detachment of the hinge pin 8 is easy, the direction of the side dump of the both-side dump bucket device 2 can be easily changed.

(2) Holding and storage of the hinge pin: Opening the cover 12b of the storage case 12 and pulling out the hinge pin 8 from the hinge pin hole 9 until it can be bent, storing the hinge pin 8 in the storage case 12 in the bent state, and closing the cover 12b, The hinge pin 8 can be held and stored. Therefore, the hinge pin 8 can be held and stored compactly in the bucket device 2 itself. The hinge pins 8 are sufficiently protected by the storage case 12 against obstacles and the like.

(3) Prevention of Damage to Hinge Pin Hole: Even when the connection between the bucket body 4 and the support member 6 by the hinge pin 8 is released, a part of the hinge pin 8 is inserted into the hinge pin hole 9. Therefore, it is possible to prevent foreign matter and the like from entering the hinge pin hole 9 and prevent the hinge pin hole 9 from being damaged by the foreign matter and the like.

(4) Simplification of the structure of the hinge pin mounting portion: The hinge pin 8 comes out of the hinge pin hole 9 by the cover 12b of the storage case 12, and the slit 12h
Therefore, the hinge pin 8 and the hinge pin hole 9 are prevented from rotating, so that it is not necessary to provide the hinge pin 8, the hinge pin hole 9, and the like with the conventional means such as a stopper and a detent. Therefore, the structure of the hinge pin mounting portion can be simplified. Further, since the hinge pin 8 is simply inserted into the hinge pin hole 9 and the cover 12b is simply closed to prevent the hinge pin 8 from coming off and stopping from rotating, it is possible to assemble the conventionally used means such as stopping and rotating stopper. There is no need for disassembly. The attachment and detachment of the hinge pin 8 is easy.

As described above, the present invention has been described in detail based on the embodiments. However, the present invention is not limited to the above-described embodiments, and can be variously modified or modified within the scope of the present invention. It is.

(1) Installation Position of Storage Case: In the embodiment of the present invention, the storage case 12 is
However, when the arrangement of the support boss and the bucket boss in the hinge pin axial direction is reversed, the storage case 12 is attached to the bucket boss. It should be attached to.

(2) Foldable hinge pin: In the embodiment of the present invention, the hinge pin 8 is divided into two pieces so that it can be bent.
The hinge pin may be divided into three or more according to the size of the bucket device.

[0036]

According to the double-sided dump bucket device constructed in accordance with the present invention, the hinge pin which has released the connection between the bucket body and the support member is attached to the bucket device itself.
Provided is a double-sided dump bucket device that is compactly held and stored, prevents damage to the hinge pin and the hinge pin hole due to foreign matter, facilitates re-attachment of the hinge pin, and simplifies the structure of the hinge pin mounting portion. .

[Brief description of the drawings]

FIG. 1 is a side view of a double-sided dump bucket device configured according to the present invention.

FIG. 2 is a top view of the double-sided dump bucket device as viewed in the direction of arrows AA in FIG. 1;

FIG. 3 is an enlarged sectional view of a hinge pin mounting portion.

FIG. 4 is a side view of a hinge pin.

FIG. 5 is a view of the hinge pin as viewed in the direction of arrows BB in FIG. 4;

FIG. 6 is a plan view of the storage case.

FIG. 7 is a side view of the storage case.

FIG. 8 is a view of the storage case shown in FIG. 7 with the cover opened when viewed in the direction of the arrows CC.

FIG. 9 is a cross-sectional view of the pin rotation preventing portion viewed in the direction of the arrow DD in FIG. 3;

[Explanation of symbols]

 2: Both side dump bucket device 4: Bucket body 6: Support member 8: Hinge pin 8a: Tip (one of divided hinge pins) 8b: Base end (the other of divided hinge pins) 8c: Connection pin 9: Hinge pin Hole 9a: Hinge pin hole (of bucket body) 9b: Hinge pin hole (of support member) 12: Storage case 12b: Cover 12h: Slit

Claims (7)

(57) [Claims] 1. A bucket body and a support member supporting the bucket body are connected by a pair of hinge pins,
In a two-sided dump bucket device in which the connection of one of the hinge pins is released and the bucket body is swingably attached to the support member about the other hinge pin, each of the hinge pins is formed to be bendable. ing,
A two-sided dump bucket device, characterized in that: 2. The double-sided dump bucket device according to claim 1, wherein the hinge pin is divided into at least two pieces in the axial direction, and the two are connected by connecting pins. 3. The double side dump bucket according to claim 1, wherein the bucket body and the support member are connected by attaching the hinge pin to a hinge pin hole passing through the bucket body and the support member. apparatus. 4. The double-sided dump bucket device according to claim 3, wherein the connection between the bucket body and the support member is released when the hinge pin is pulled out from the hinge pin hole to a state where the hinge pin can be bent. 5. The double sided dump bucket device according to claim 3, wherein a storage case for storing a portion of the hinge pin extracted from the hinge pin hole is provided in the bucket body or the support member. 6. The both sides according to claim 5, wherein the storage case has a cover that can be opened and closed, and the cover is always kept closed to restrict the movement of the hinge pin in the direction of coming out of the hinge pin hole. Dump bucket device. 7. The storage case has a slit extending in a direction in which the hinge pin is inserted and withdrawn, and the slit engages with the hinge pin to restrict movement in a rotational direction about the axis of the hinge pin. 7. The two-sided dump bucket device according to 5 or 6.