JP3235582U - A horizontal lock pin structure used for a work machine bucket, and a work machine bucket having the horizontal lock pin structure. - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a horizontal lock pin structure used for a work machine bucket for improving the safety of an operator by simplifying the operability at the time of attachment / detachment operation and eliminating the need for a strong blow. SOLUTION: A horizontal lock pin structure 1 configured to lock or unlock a tooth disk 3 fitted to an adapter 2 attached to an excavation edge side of a work machine bucket. Therefore, the adapter and the tooth board are provided with a groove hole 4 for the lock receiver 21 and an insertion hole 5 for the horizontal lock pin 11 which penetrate in the lateral direction, respectively, in a communicating state, and the horizontal lock is inserted and arranged in the insertion hole. A groove and a lock provided on the horizontal lock pin body based on the engagement with the insertion hole on the outer periphery of the pin body 12 and the rotation operation of the horizontal lock pin body with respect to the lock receiver having a protruding pin structure fixedly arranged in the groove hole. The adapter and the tooth disc are locked or unlocked by being integrated with the protruding pin structure of the receiver by locking fitting or by releasing the locking fitting. It is a thing. [Selection diagram] Fig. 1

Description

The present invention relates to a horizontal lock pin structure used for a work machine bucket and a work machine bucket provided with the horizontal lock pin structure. The horizontal lock pin structure used for the work machine bucket and the horizontal lock pin structure for facilitating and improving the safety of the worker who can work with a light driving without requiring a strong impact. It is about a work machine bucket to be equipped.

Recently, with regard to the integrated structure of the adapter and the tooth board in the work machine bucket, the demand for the horizontal pin type such as the tooth board, which is less likely to fall off, is increasing from the vertical pin type fixing method.

However, conventionally, many horizontal pin type locking methods are not universal and have various problems.

For example, a particularly horizontal lock of a lock pin for connecting a tooth body such as a point tooth machine (wedge-shaped tooth machine) attached to a bucket for a work machine and a replaceable flat plate tooth (tooth machine) that can also be attached to the bucket. There are various horizontal lock pins in the pin, but many of them may require strong striking work with a hammer when attaching and detaching, and the risk of injury to the worker due to the striking work is a problem. It has become.

In addition, even with the locking method that does not involve striking work as described above, the handling is extremely complicated due to the large number of constituent parts and the complicated structure, and a more expensive set is required during work. It has become.

For example, Patent Document 1 relates to a configuration of a horizontal lock pin, and is a work of fitting into a horizontal hole penetrating an adapter arranged in a row on the excavation edge side of a work machine bucket and a point to be fitted to the adapter. A horizontal pin of a work machine bucket, which is a horizontal pin of a machine bucket and has a recessed portion at an end surface portion in contact with the beating end portion of the horizontal pin punching tool, has been proposed.

However, in the case of the horizontal pin of Patent Document 1, it is premised on a horizontal pin punching tool, that is, a structure and a form using a hammer, and there is still a risk of injury to the worker due to the hammer striking work. Embraces the problem.

Registered Utility Model No. 3139904

The present invention was developed in view of the above-mentioned conventional circumstances, and in consideration of the ease of attachment / detachment, the operability at the time of attachment / detachment operation is simplified and the safety of the operator is improved by eliminating the need for heavy impact. It is an object of the present invention to provide a horizontal lock pin structure used for a work machine bucket for the purpose of improvement, and a work machine bucket having the horizontal lock pin structure.

The horizontal lock pin structure used for the work machine bucket of the present invention is a horizontal lock pin that locks or unlocks the tooth disc fitted to the adapter attached to the drilling edge side of the work machine bucket. The structure is such that the adapter and the tooth board are provided with a groove hole for a lock receiver and an insertion hole for a horizontal lock pin, respectively, in a communicating state, and the horizontal lock pin is inserted and arranged in the insertion hole. The horizontal lock pin is based on the engagement with the insertion hole on the outer periphery of the horizontal lock pin body constituting the structure and the rotation operation of the horizontal lock pin body with respect to the lock receiver of the protruding pin structure fixedly arranged in the groove hole. The adapter and the tooth board are put into a locked or unlocked state by integrating the groove provided in the main body with the protruding pin by locking fitting or by releasing the locking fitting. That is the most important feature.

According to the invention according to claim 1, the work machine bucket exhibiting excellent functions aimed at improving the safety of the operator by simplifying the operability at the time of attaching / detaching the lock pin and eliminating the need for a strong blow. The horizontal lock pin structure to be used can be realized and provided.

According to the invention according to claim 2, the lock receiver has a hemispherical metal protruding pin structure, and the horizontal lock pin main body side is locked or unlocked with the metal protruding pin based on the rotation operation. , Realizes and provides a horizontal lock pin structure used for work machine buckets that demonstrate excellent functions with improved operator safety by simplifying operability when attaching and detaching lock pins and eliminating the need for heavy impacts. can do.

According to the invention according to claim 3, in the invention according to claim 1 or 2, since the guide recess forming the insertion line in the longitudinal direction is provided on the outer periphery of the horizontal lock pin main body, the basis of this configuration is Further, it is possible to realize and provide a horizontal lock pin structure used for a work machine bucket which has the same effect as that of the invention according to claim 1 or 2 and has good handleability at the time of inserting the horizontal lock pin main body.

According to the invention according to claim 4, a groove portion is provided in the central portion of the horizontal lock pin main body along the circumferential direction, and this groove portion is a guide recess on the pin insertion line side, a subsequent pin circumferential groove portion, and a subsequent pin. It has a triple configuration of locking grooves, and the depth from the outer peripheral surface of the horizontal lock pin body is the depth from the outer peripheral surface of the pin insertion line <depth from the outer peripheral surface of the pin circumferential groove portion <the depth of the pin locking groove portion. Since the depths from the outer peripheral surface are formed larger in order, the same effect as that of the device according to any one of claims 1 to 3 can be obtained based on this configuration, and at the time of the lock pin attachment / detachment operation. Simplification of operability and certainty of unification release operation by lock fitting or unlocking of the groove provided in the horizontal lock pin body and the protruding pin based on the rotation operation of the horizontal lock pin body. It is possible to realize and provide a horizontal lock pin structure used for a work machine bucket that can be used.

According to the invention according to claim 5, since nut-shaped portions for rotation operation are provided at both ends of the horizontal lock pin main body, any one of claims 1 to 4 is based on this configuration. It is possible to realize and provide a horizontal lock pin structure used for a work machine bucket having a convenient rotation operation work by a ratchet wrench or the like while having the same effect as the invention described in 1.

According to the invention of claim 6, a spiral groove portion is provided in the horizontal lock pin main body, and the spiral groove portion has a guide recess corresponding to the metal protruding pin structure of the lock receiver, a subsequent pin circumferential groove portion, and a subsequent pin lock. Since the triple structure of the groove portion is repeatedly formed, the same effect as that of the invention according to any one of claims 1, 2 or 5, is obtained based on this structure, and the horizontal lock pin main body is obtained. It is possible to realize and provide a horizontal lock pin structure used for a work machine bucket that diversifies its compatibility with various usage points.

According to the invention of claim 7, the one according to any one of claims 1 to 5 is based on a structure in which a cylindrical metal protruding pin structure is formed and a groove portion on the horizontal lock pin main body side is formed into a cylindrical surface shape. It is possible to realize and provide a horizontal lock pin structure used for a work machine bucket that has the same effect as the device.

According to the invention of claim 8, the lock receiving side has a chevron-shaped metal protruding pin structure, and the horizontal lock pin main body side has a chevron concave groove corresponding to the genus protruding pin. It is possible to realize and provide a horizontal lock pin structure used for a work machine bucket having the same effect as that of the device according to any one of 5.

According to the invention of claim 9, the insertion line formed in the longitudinal direction of the outer periphery of the horizontal lock pin main body is provided with one or more than one insertion line, according to claim 3, 4, 7 or 8. It is possible to realize and provide a horizontal lock pin structure used for a work machine bucket having the same effect as that of the device according to any one of the above items.

According to the invention of claim 10, the groove portion for lock fitting located in the central portion of the horizontal lock pin main body is provided with one or more or more grooves, and the first, second, and fourth claims. It is possible to realize and provide a horizontal lock pin structure used for a work machine bucket having the same effect as that of the invention according to any one of 7 or 8.

According to the invention according to claim 11, since the work machine bucket provided with the horizontal lock pin structure according to any one of claims 1 to 10, the tooth board can be easily attached to and detached from the adapter. It is possible to realize and provide a work machine bucket with excellent worker safety.

FIG. 1 is a schematic cross-sectional view showing a horizontal lock pin structure used in the work machine bucket according to the embodiment of the present invention. FIG. 2 is a schematic vertical sectional view showing a horizontal lock pin structure used for the work machine bucket according to the present embodiment. FIG. 3 is an operation explanatory diagram showing an initial insertion state, a rotation operation state, and a lock state of the horizontal lock pin main body with respect to the lock receiver in the horizontal lock pin structure used for the work machine bucket according to the present embodiment. FIG. 4 is a list explanatory view showing the front surface, the flat surface, the bottom surface, the back surface, the left side surface, the right side surface, and the perspective state of the horizontal lock pin main body in the horizontal lock pin structure used for the work machine bucket according to the present embodiment. FIG. 5 shows the shape of the groove portion of the horizontal lock pin main body in the horizontal lock pin structure used for the work machine bucket according to the present embodiment, and has a guide recess on the pin insertion line side, a subsequent pin circumferential groove portion, and a subsequent pin lock groove portion 3. It is sectional drawing which shows the continuous structure. FIG. 6 is a list explanatory view showing the front surface, the flat surface, the bottom surface, the back surface, the left side surface, the right side surface, and the perspective state of the lock receiver in the horizontal lock pin structure used for the work machine bucket according to the present embodiment. FIG. 7 is a schematic perspective view showing a lock receiver in a horizontal lock pin structure used for the work machine bucket according to the present embodiment in a perspective view. FIG. 8 is a schematic explanatory view showing a horizontal lock pin main body having a horizontal lock pin structure used for the work machine bucket according to the present embodiment, a lock receiver adapter, and a mounting state on a tooth board. FIG. 9 is a schematic perspective view showing a modified example of the horizontal lock pin main body constituting the horizontal lock pin structure used for the work machine bucket according to the present embodiment. FIG. 10 is a schematic perspective view showing a cylindrical type horizontal lock pin main body and a lock receiver, which is a first modification of the horizontal lock pin structure used for the work machine bucket according to the present embodiment. FIG. 11 is a schematic perspective view showing a mountain-shaped horizontal lock pin main body and a lock receiver, which is a second modification of the horizontal lock pin structure used for the work machine bucket according to the present embodiment. FIG. 12 is a schematic perspective view of a work machine bucket provided with a horizontal lock pin structure used for the work machine bucket according to the present embodiment.

The present invention has a horizontal lock pin structure used for a work machine bucket that simplifies the operability during the attachment / detachment operation and improves the safety of the operator by eliminating the need for a strong blow, in consideration of the ease of attachment / detachment. A horizontal lock pin structure that locks or unlocks a tooth disc fitted to an adapter attached to the drilling edge side of a work machine bucket for the purpose of providing the adapter. A horizontal lock pin main body that constitutes a horizontal lock pin structure in which a groove hole for a lock receiver and an insertion hole for a horizontal lock pin, which penetrate in the lateral direction, are provided in a communicating state on the tooth board and inserted through the insertion hole. The horizontal type for a lock receiver having a hemispherical metal projecting pin structure fixedly arranged in the groove hole and engaging with the insertion hole on the outer periphery and integrally forming a projecting pin holder made of a rubber material around the hemispherical metal projecting pin structure. The adapter and the tooth board are locked by integrating the groove portion provided in the horizontal lock pin body and the protruding pin based on the rotation operation of the lock pin body by locking fitting or by releasing the locking fitting. It was realized by the configuration so that it was in the state or the unlocked state.

Hereinafter, the horizontal lock pin structure used for the work machine bucket according to the embodiment of the present invention and the work machine bucket provided with the horizontal lock pin structure will be described in detail with reference to each drawing.

The horizontal lock pin structure 1 used for the work machine bucket 71 according to the present embodiment is a tooth board 3 that is fitted to the outside of the adapter 2 with respect to the adapter 2 attached to the excavation edge side of the work machine bucket 71 described later. Are connected so that they can be locked or unlocked.

That is, as shown in FIGS. 1, 2, and 8, the adapter 2 and the tooth board 3 communicate with the groove hole 4 for the lock receiver 21 and the insertion hole 5 for the horizontal lock pin 11 that penetrate in the lateral direction, respectively. It is provided in the state.

Then, in the groove 4 in the adapter 2, for example, a lock receiver 21 having a hemispherical metal protruding pin structure and an exterior body 22 made of a rubber material integrally molded around the three hemispherical metal protrusion pins is provided. The hemispherical metal protrusion pin 21a is fixedly arranged so as to face the insertion hole 5 side.

Further, the horizontal lock pin main body 12 of the horizontal lock pin 11 is inserted into the insertion hole 5 in the adapter 2 from, for example, in the direction of arrow a shown in FIG. 1, and rotation provided at both ends of the horizontal lock pin main body 12. The horizontal lock pin main body 12 and the lock receiver 21 are configured to be locked and coupled in the adapter 2 by rotating the operation nut shape portion 13 in the direction of arrow b shown in FIG.

At this time, the outer peripheral ends on both sides of the horizontal lock pin main body 12 constituting the horizontal lock pin structure 1 inserted and arranged in the insertion hole 5 are configured to engage with the insertion hole 5.

This lock coupling will be described in detail later.

As the material of the exterior body 22 of the lock receiver 21, for example, chloroprene rubber (CR) is used, and as the material of the three hemispherical metal protruding pins 21a and the pin holder 21b thereof, for example, a machine. An example of using carbon steel for structuring (S45C) can be mentioned.

Next, the horizontal lock pin 11 and the lock receiver 21 will be described in detail with reference to FIGS. 4 to 8.

FIG. 4 shows a list of the front surface, the flat surface, the bottom surface, the back surface, the left side surface, the right side surface, and the perspective state of the horizontal lock pin 11 in the horizontal lock pin structure 1 according to the present embodiment.

The horizontal lock pin 11 includes a horizontal lock pin main body 12 and nut-shaped portions 13 and 13 for rotating operation (for example, ratchet operation, etc.) of an operator provided at both ends thereof.

For example, a triangular locking mark 13a is provided on the outer end surface of the nut-shaped portion 13.

Further, on the outer periphery of the horizontal lock pin main body 12, a guide recess 15a forming an insertion line L in the longitudinal direction thereof is provided.

Further, for example, three groove portions 14 are provided in the central portion of the horizontal lock pin main body 12 along the circumferential direction, and each of the groove portions 14 is a guide recess 15a on the pin insertion line L side, followed by a pin circumferential groove portion 15b. , The subsequent pin lock groove portion 15c has a triple configuration, and the depth from the outer peripheral surface of the horizontal lock pin main body 121 is the depth from the outer peripheral surface of the pin insertion line L (for example, 2 mm) <pin as shown in FIG. The depth from the outer peripheral surface of the circumferential groove portion 15b (for example, 3 mm) <the depth from the outer peripheral surface of the pin lock groove portion 15c (for example, 4 mm) is formed to be larger (deeper) in order.

FIG. 6 shows a list of the front surface, the flat surface, the bottom surface, the back surface, the left side surface, the right side surface, and the perspective state of the lock receiver 21 in the horizontal lock pin structure 1 according to the present embodiment.

Further, FIG. 7 shows the lock receiver 21 in the horizontal lock pin structure 1 according to the present embodiment in a perspective view.

The lock receiver 21 integrally holds three hemispherical metal projecting pins 21a and the metal projecting pins 21a thereof, and is arranged at both ends opposite to the three hemispherical metal projecting pins 21a. A pin holding body 21b having a leg piece 21c projected in the above direction and a rubber outer body 22 so as to integrally surround the outer periphery of the pin holding body 21b so that the metal protruding pin 21a protrudes outward. It has an integrally molded structure.

Then, as shown in FIG. 8, the horizontal lock pin 11 is rotatably inserted into the insertion hole 5 provided in the adapter 2 and the tooth board 3 in a state of penetrating in the lateral direction, and is also used for the lock receiver 21. The lock receiver 21 is configured to be inserted into the groove hole 4 of the above so as to be fixedly arranged.

Next, the initial insertion state, the rotation operation state, and the lock state of the horizontal lock pin main body 12 with respect to the lock receiver 21 in the horizontal lock pin structure 1 used for the work machine bucket according to the present embodiment will be described with reference to FIG. ..

The upper column of FIG. 3 shows the initial state of insertion of the horizontal lock pin main body 12 into the lock receiver 21, and in this state, the three hemispherical metal protruding pins 21a in the lock receiver 21 and the pin insertion on the horizontal lock pin 11 side. The guide recess 15a on the line L side is opposed to the guide recess 15a.

At this time, the outer peripheral ends on both sides of the horizontal lock pin main body 12 constituting the horizontal lock pin structure 1 inserted and arranged in the insertion hole 5 are engaged with the insertion hole 5 of the tooth board 3.

The middle column of FIG. 3 shows a state in which the operator has rotated the nut shape portion 13 by a certain angle in the direction of arrow b from the state of the upper column of FIG. And the pin circumferential groove portion 15b on the horizontal lock pin 11 side are in sliding contact with each other.

The lower column of FIG. 3 shows a state in which the operator further rotates the nut-shaped portion 13 in the direction of arrow b by a constant angle from the state of the middle column of FIG. The pin 21a enters the pin lock groove portion 15c on the horizontal lock pin 11 side, whereby the horizontal lock pin 11 and the lock receiver 21 are integrated into the locked state.

In this way, the operator inserts the horizontal lock pin body 12 so as to face the lock receiver 21, and through a two-step rotation operation, the tooth is extremely simply and safely fitted to the outside of the adapter 2. The board 3 can be locked, and the horizontal lock pin 11 and the lock receiver 21 can be unlocked and the tooth board 3 can be removed from the adapter 2 through the reverse rotation operation as described above.

FIG. 9 shows a horizontal lock pin 11A which is a modification of the horizontal lock pin 11 in the horizontal lock pin structure 1 according to the present embodiment, and in the horizontal lock pin 11A, the same element as the horizontal lock pin 11 is used. Are indicated by the same reference numerals.

The horizontal lock pin 11A has the same basic configuration as the horizontal lock pin 11, but a spiral groove portion 16 is provided along the circumferential direction of the horizontal lock pin main body 12, and the lock receiver 16 is provided in the spiral groove portion 16. Corresponding to the metal protruding pin structure of 21, the guide recess 17a, the subsequent pin circumferential groove portion 17b, and the subsequent pin lock groove portion 17c are repeatedly formed (for example, at three locations).

Nut-shaped portions 13 and 13 are formed at both ends of the horizontal lock pin 11A as in the case described above, and for example, a triangular locking mark 13a is provided on the end surface of the nut-shaped portion 13.

The horizontal lock pin 11A can also exert the same effect as the horizontal lock pin 11.

FIG. 10 shows a horizontal lock pin structure 1A which is a first modification of the horizontal lock pin structure 1 of the present embodiment, and the horizontal lock pin structure 1A is the same as the case of the horizontal lock pin structure 1. The elements are indicated by the same reference numerals.

The horizontal lock pin structure 1A has substantially the same configuration as that of the horizontal lock pin structure 1, but has a configuration in which the lock receiver 31 includes three cylindrical metal projecting pins 32a, and the three cylinders are provided. A pin holder 32b having a metal protruding pin 32a of the mold integrally held and a leg piece 32c protruding at both ends in an arrangement opposite to the three cylindrical metal protruding pins 32a, and the pin holder 32b. The outer periphery of the pin holding body 32b is integrally molded so as to be integrally surrounded by a rubber outer body 33 in such a manner that the metal protruding pin 32a protrudes outward.

The materials of the metal projecting pin 32a, the pin holder 32b, and the exterior body 33 are the same as those described above.

Further, the horizontal lock pin structure 1A has three circles corresponding to the shapes of the three cylindrical metal projecting pins 32a on the outer peripheral portion of the central region of the horizontal lock pin main body 42 of the horizontal lock pin 41. A groove portion 43 having a peripheral surface shape is provided.

The horizontal lock pin 41 includes a horizontal lock pin main body 42 and nut-shaped portions 13 and 13 for rotating operators provided at both ends thereof, and the end surface of the nut-shaped portion 13 has, for example, a triangular shape. The lock mark 13a is provided.

Further, the groove portion 43 provided on the outer periphery of the horizontal lock pin main body 42 is provided with a guide recess 45a forming an insertion line L in the longitudinal direction thereof.

Further, in the central portion of the horizontal lock pin main body 12, for example, three groove portions 43 having a circumferential surface shape are provided along the circumferential direction, and each of the groove portions 14 has a circumferential surface shape on the pin insertion line L side. It has a triple configuration consisting of a guide recess 45a, a pin circumferential groove portion 45b having a continuous circumferential surface shape, and a pin lock groove portion 45c having a continuous circumferential surface shape.

The horizontal lock pin structure 1A, which is the first modification, can also exert the same effect as that of the horizontal lock pin structure 1 described above.

FIG. 11 shows a horizontal lock pin structure 1B which is a second modification of the horizontal lock pin structure 1 of the present embodiment, and in this horizontal lock pin structure 1B, the same elements as in the case of the horizontal lock pin structure 1 Are indicated by the same reference numerals.

The horizontal lock pin structure 1B has substantially the same configuration as that of the horizontal lock pin structure 1, but has a configuration in which the lock receiver 51 includes a mountain-shaped metal projecting pin 52a, and the mountain-shaped metal projecting pin 52a is provided. A pin holding body 52b having leg pieces 52c protruding at both ends in an arrangement opposite to the metal protruding pin 52a, and the outer periphery of the pin holding body 52b being covered with the metal protruding pin 52a. Is integrally molded so as to be integrally surrounded by a rubber exterior body 53 so as to project outward.

The materials of the metal protruding pin 52a, the pin holder 52b, and the exterior body 53 are the same as those described above.

Further, in the horizontal lock pin structure 1B, a groove portion 63 having a circumferential surface shape corresponding to the shape of the mountain-shaped metal protruding pin 52a is provided on the outer peripheral portion of the central region of the horizontal lock pin main body 62 of the horizontal lock pin 61. It is provided.

The horizontal lock pin 61 includes a horizontal lock pin main body 62 and nut-shaped portions 13 and 13 for rotating operators provided at both ends thereof, and the end surface of the nut-shaped portion 13 has, for example, a triangular shape. The lock mark 13a is provided.

Further, the groove portion 63 provided on the outer periphery of the horizontal lock pin main body 62 is provided with a guide recess 65a forming an insertion line L in the longitudinal direction thereof.

Further, a groove portion 63 having a circumferential surface shape is provided in the central portion of the horizontal lock pin main body 62 along the circumferential direction, and the groove portion 63 is followed by a guide recess 65a having a circumferential surface shape on the pin insertion line L side. It has a triple configuration consisting of a pin circumferential groove portion 65b having a circumferential surface shape and a pin lock groove portion 65c having a subsequent circumferential surface shape.

The horizontal lock pin structure 1B, which is such a second modification, can also exert the same effect as the case of the horizontal lock pin structure 1 described above.

FIG. 12 shows a work machine bucket 71 provided with the horizontal lock pin structure 1 according to the present embodiment described above.

In this work machine bucket 71, the adapter 2 is attached to the excavation edge side of the work machine bucket 71 itself in a triple configuration in the width direction, and the tooth board 3 is fitted to each adapter 2 in a triple configuration, for a total of. It is configured to include three sets of horizontal lock pin structures 1.

It should be noted that the example shown in FIG. 12 is an example, and it goes without saying that the number of connected adapters 2 and tooth plates 3 can be various modifications such as 2 stations, 4 stations, and 5 stations depending on the purpose of use. ..

As described above, according to the horizontal lock pin structure 1 according to the present embodiment, the horizontal lock pin 11 is based on the rotation operation of the nut-shaped portion 13 that functions as the rotation operation tool provided on the horizontal lock pin 11 in a certain direction. And the lock receiver 21 are integrated into the locked state, and the locked state of the horizontal lock pin 11 and the lock receiver 21 can be easily released by rotating the nut-shaped portion 13 in the opposite direction. As a result, the work of locking or unlocking the tooth board 3 with respect to the adapter 2 can be performed by simplifying the operability at the time of attachment / detachment operation and eliminating the need for a strong blow to improve the safety of the operator. It will be possible to steadily implement it while trying to improve it.

The same applies to the case where the horizontal lock pin structure 1A which is the first modification and the horizontal lock pin structure 1B which is the second modification are adopted.

Further, according to the work machine bucket 71 adopting the horizontal lock pin structure 1 according to the present embodiment, the work of locking or unlocking the tooth board 3 with respect to the adapter 2 can be performed during the attachment / detachment operation. It is possible to carry out maintenance work of the work machine bucket 71 with improved safety without the need for heavy hitting work using a hitting tool such as a hammer while trying to simplify and simplify.

When the horizontal lock pin structure according to the present embodiment described above is provided in the work machine bucket, a more excellent work machine bucket can be realized and provided.

Hereinafter, the present embodiment will be further added.
According to the horizontal lock pin structure 1 according to the present embodiment, the insertion line L is provided in the longitudinal direction of the horizontal lock pin main body 12, the central region has a groove along the circumference, and the horizontal lock pin main body 12 is provided. The lock receiver 21 is arranged at the tip of the rotation, and the horizontal lock pin 11 and the lock receiver 21 are configured to be easily locked or unlocked by the rotation operation, and the tooth board 3 is connected to the adapter 2. On the other hand, since it is possible for the manager to put it in a locked state or an unlocked state, it is possible to improve the safety of the operator by simplifying the operability especially during the attachment / detachment operation and eliminating the need for a heavy blow. can.

Further, since each groove of the horizontal lock pin main body 12 is deepened in the order of pin insertion line <pin circumferential groove <pin lock recess, the locked state of the horizontal lock pin 11 and the lock receiver 21 is further removed. It can be a difficult structure.

According to the horizontal lock pin structure 1 according to the present embodiment, the lock receiver 21 has an external shape similar to that of the conventional lock receiver, but the portion of the metal protruding pin that meshes with the horizontal lock pin 11 is. Since it is integrated with the exterior body, it is possible to avoid the problem that the metal protruding pin portion falls off from the rubber portion as in the conventional product.

According to the horizontal lock pin structure 1 according to the present embodiment, the portion of the metal protruding pin in the lock receiver 21 is protected by the rubber outer body, so that both the load in the excavation direction and the load in the leveling direction can be obtained. It has the advantage of being less susceptible to direct loads and effective against breakage.

Further, in the present embodiment and the modified example, as shown by the horizontal lock pin structures 1, 1A and 1B, the form of the metal protruding pin portion is not only a hemispherical triple shape but also a cylindrical shape or a chevron shape. It is possible to use it properly according to the purpose such as body shape.

Further, the number of protruding metal protruding pins in the lock receiver 21 may be a plurality of such as 1 to 4, 5 or the like.

The horizontal pin structure according to the present invention can be widely applied not only as a horizontal form but also as a vertical or diagonal form. Further, as described above, if the horizontal lock pin structure according to the present invention is provided in the work machine bucket, a more excellent work machine bucket can be realized and provided.

1 Horizontal lock pin structure 1A Horizontal lock pin structure 1B Horizontal lock pin structure 2 Adapter 3 Tooth board 4 Groove hole 5 Insertion hole 11 Horizontal lock pin 11A Horizontal lock pin 12 Horizontal lock pin body 13 Nut shape part 13a Lock mark 14 Groove part 15a Guide recess 15b Pin circumferential groove 15c Pin lock groove 16 Spiral groove 17a Guide recess 17b Pin circumferential groove 17c Pin lock groove 21 Lock receiver 21a Metal protrusion pin 21b Pin holder 21c Leg piece 22 Exterior body 31 Lock receiver 32a Metal protrusion pin 32b Pin holder 32c Leg piece 33 Exterior body 41 Horizontal lock pin 42 Horizontal lock pin body 43 Groove 45a Guide recess 45b Pin circumference groove 45c Pin lock groove 51 Lock receiver 52a Metal protrusion pin 52b Pin holder 52c Leg piece 53 Exterior body 61 Horizontal lock pin 62 Horizontal lock pin body 63 Groove 65a Guide recess 65b Pin circumference groove 65c Pin lock groove 71 Work machine bucket L Insertion line

Claims (11)

It is a horizontal lock pin structure that locks or unlocks the tooth disk fitted to this adapter to the adapter attached to the excavation edge side of the work machine bucket.
The adapter and the tooth board are provided with a groove hole for a lock receiver and an insertion hole for a horizontal lock pin that penetrate in the lateral direction, respectively, in a communicating state.
Engagement with the insertion hole on the outer periphery of the horizontal lock pin body constituting the horizontal lock pin structure inserted through the insertion hole, and the horizontal lock pin body with respect to the lock receiver of the protruding pin structure fixedly arranged in the groove hole. Based on the rotation operation, the adapter and the tooth board are locked or unlocked by integrating the groove portion provided in the horizontal lock pin main body with the protruding pin by locking fitting or by releasing the locking fitting. A horizontal lock pin structure used for work machine buckets, which is characterized by being in the unlocked state. It is a horizontal lock pin structure that locks or unlocks the tooth disk fitted to this adapter to the adapter attached to the excavation edge side of the work machine bucket.
The adapter and the tooth board are provided with a groove hole for a lock receiver and an insertion hole for a horizontal lock pin that penetrate in the lateral direction, respectively, in a communicating state.
Engagement with the insertion hole on the outer periphery of the horizontal lock pin main body constituting the horizontal lock pin structure inserted through the insertion hole, and a hemispherical metal protruding pin structure fixedly arranged in the groove hole from a rubber material around it. Based on the rotation operation of the horizontal lock pin main body with respect to the lock receiver integrally formed with the protruding pin holding body, the groove portion provided in the horizontal lock pin main body and the protruding pin are integrated or locked by lock fitting. A horizontal lock pin structure used for a work machine bucket, characterized in that the adapter and the tooth board are brought into a locked state or an unlocked state by releasing the union by releasing the union. The horizontal lock pin structure used for the work machine bucket according to claim 1 or 2, wherein a guide recess forming an insertion line in the longitudinal direction thereof is provided on the outer periphery of the horizontal lock pin main body. A groove portion is provided along the circumferential direction in the central portion of the horizontal lock pin main body, and this groove portion has a triple configuration of a guide recess on the pin insertion line side, a subsequent pin circumferential groove portion, and a subsequent pin lock groove portion. , The depth from the outer peripheral surface of the horizontal lock pin body is the depth from the outer peripheral surface of the pin insertion line <the depth from the outer peripheral surface of the pin circumferential groove portion <the depth from the outer peripheral surface of the pin lock groove portion. The horizontal lock pin structure used for the work machine bucket according to any one of claims 1 to 3, characterized in that it is formed large. The horizontal lock pin structure used for a work machine bucket according to any one of claims 1 to 4, wherein nut-shaped portions for rotation operation are provided at both ends of the horizontal lock pin main body. A spiral groove is provided along the circumferential direction of the horizontal lock pin body, and the spiral groove has a guide recess, a subsequent pin circumferential groove, and a subsequent pin lock groove corresponding to the metal protruding pin structure of the lock receiver. The horizontal lock pin structure used for the work machine bucket according to any one of claims 1 and 2, wherein the triple configuration is repeatedly formed. A lock receiver having a cylindrical metal protruding pin structure fixedly arranged in the groove hole for the lock receiver, and a protruding pin holder made of a rubber material integrally molded around the cylindrical metal protruding pin structure.
A horizontal lock pin main body having a cylindrical groove portion formed on the outer periphery of the horizontal lock pin main body in the longitudinal direction thereof and fitted with a cylindrical metal protruding pin of the lock receiver.
The horizontal lock pin structure used for the work machine bucket according to any one of claims 1 to 5, wherein the work machine bucket has. A lock receiver having a mountain-shaped metal protruding pin structure fixedly arranged in the groove hole for the lock receiver, and a protruding pin holder made of a rubber material integrally molded around the mountain-shaped metal protruding pin structure.
A horizontal lock pin body having an insertion line formed on the outer periphery of the horizontal lock pin body in the longitudinal direction thereof and having a mountain-shaped concave groove corresponding to the mountain-shaped metal protruding pin of the lock receiver.
The horizontal lock pin structure used for the work machine bucket according to any one of claims 1 to 5. The insertion line formed in the longitudinal direction of the outer periphery of the horizontal lock pin main body is provided with one or more plurality of rows, according to any one of claims 3, 4, 7 or 8. Horizontal lock pin structure. One of claims 1, 2, 4, 7 or 8, wherein the groove for locking fitting located at the center of the horizontal lock pin main body is provided with one or more plurality of articles. Horizontal lock pin structure described in. A work machine bucket comprising the horizontal lock pin structure according to any one of claims 1 to 10.

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