JP3216474U - A tooth machine attached to a bucket for an excavator machine and a bucket for an excavator machine provided with the tooth machine - Google Patents

Abstract

A plurality of tooth members are arranged side by side so as to be capable of adjusting the spacing, and can be used for buckets of different sizes, and are resistant to bending loads acting on the tooth board itself while preventing an increase in the plate thickness of the spacing adjusting mechanism element. A tooth machine attached to a bucket for an improved excavator machine is provided. A tooth board has a structure in which a right tooth member 11, a left tooth member 31, and a central tooth member 21 arranged in a bucket are arranged side by side, and a spacing adjustment folding protrusion 14 is provided on a left side surface portion of a right tooth member main body. The central tooth member has a structure in which a concave portion in which the front side of the bent protrusion 24 for adjusting the interval of the central tooth member can be fitted and a bent receiving piece portion joined in the rear side are connected to the right side surface portion of the main body of the left tooth member. The left side member of the main body is provided with a bent protrusion for adjusting the interval of the left tooth member that is fitted into the concave portion of the left tooth member, and the central tooth member main body is provided in front of the bent protrusion for adjusting the interval of the right tooth member. The recessed portion that can be fitted on the side and the bent receiving piece portion joined on the rear side are connected. [Selection] Figure 1

Description

  The present invention relates to a tooth machine attached to a bucket for an excavator machine used for civil engineering work and the like, and more specifically, a bucket for an excavator machine provided with the tooth machine. The present invention relates to a tooth machine attached to a bucket for an excavator machine capable of supporting buckets of different sizes and improving resistance to bending load acting on the tooth machine itself, and a bucket for an excavator machine equipped with the tooth machine It is.

  Conventionally, in the tooth board 51 having a structure in which a plurality of tooth members 61, 62 are fitted and arranged in parallel so as to adjust the distance, as shown in FIG. 7, the distance adjustment for forming a rectangular parallelepiped space in one of the tooth members 61 is performed. In most cases, a concave portion 63 is provided, and the other tooth member 62 is provided with a flat interval adjusting projection 64 that fits into the interval adjusting concave portion 63, and these are fitted to form a superposition structure.

  In the case of the tooth board 51 in which the plurality of tooth members 61 and 62 are arranged side by side, the space between the gap adjustment recess 63 and the gap adjustment protrusion 64 is a flat surface above and below the gap adjustment recess 63. In addition, an excessive bending load is applied in the vertical direction of the tooth board 51 in the usage mode of the maximum adjustable pitch because the fitting is performed in a joining structure between the flat upper surface and the lower surface of the spacing adjustment protrusion 64. Assuming the case, the gap adjusting recess 63 or the gap adjusting protrusion 64 is vulnerable to damage due to the excessive bending load.

  In the above-mentioned tooth board 51, in order to improve the strength for preventing breakage, the direction of increasing the plate thickness of the interval adjusting recess 63 and the interval adjusting protrusion 64 is generally used. It is estimated that no countermeasures exist.

  In Patent Document 1, the applicant of the present application previously proposed, each having a pin hole for a connecting pin on the base end side, and a recess for insertion that can be fitted with an adapter protruding from the bucket side A tooth machine attached to a bucket for an excavator machine with a parallel arrangement structure of a plurality of tooth members each provided with an exposed blade portion that digs into excavated earth and sand on the protruding end side, Among a plurality of tooth members, a spacing adjustment protrusion is provided on one side surface of the tooth member adjacent to both side surface portions and arranged side by side, and the distance between the upper surface shielding member and the bottom surface member is provided on the other side surface portion. Each of the plurality of tooth members is provided with an adjustment recess, and among the plurality of tooth members, the tooth member in which another tooth member is arranged in parallel only on one side surface portion includes a spacing adjustment protrusion, or a top surface shielding member and a bottom surface member. The recess for spacing adjustment by In addition, the slide fitting displacement of the spacing adjustment protrusion of the adjacent tooth member with respect to the spacing adjustment concave portion of the tooth member in which the other tooth members are arranged in parallel on the both side surface portions, or another tooth member on the both side surface portions. Between the tooth members while maintaining the straight line state in the juxtaposed direction by slide fitting displacement with respect to the gap adjusting recess of the tooth member adjacent to the gap adjusting protrusion of the tooth members arranged side by side The gaps between the tooth members in the region occupying the lower position of the upper surface shielding member excluding the blade region are shielded by the upper surface shielding members. A tooth machine attached to a bucket for an excavator machine configured as described above is disclosed.

  However, even in the case of the tooth board of Patent Document 1, no special measures are taken to improve the strength for preventing breakage due to bending load.

JP 2017-25578 A

  The present invention has been developed in view of the above circumstances, and a plurality of tooth members can be arranged in parallel so as to be able to adjust the spacing, and can be adapted to different size buckets, and prevents an increase in the thickness of the spacing adjusting mechanism element. In addition, the present invention provides a tooth machine attached to a bucket for an excavator machine that is improved in resistance to a bending load acting on the tooth machine itself, and a bucket for an excavator machine provided with the tooth machine.

  The present invention includes a right tooth member disposed on one right side of a bucket, a left tooth member disposed on one left side of the bucket, and one or more central tooth members arranged in parallel between the right tooth member and the left tooth member. A plurality of tooth members arranged side by side, each having a pin hole for a connecting pin on the base end side, and provided with a recessed portion for insertion into which an adapter protruded from the bucket side can be mounted, each projecting end side It is a tooth machine attached to a bucket for an excavator machine in which a blade part that digs into earth and sand for excavation is exposed, and the blade part side is on the left side part of the right tooth member body of the right tooth member A spacing adjustment folding protrusion from the blade portion to the rear side on the right side surface of the left tooth member main body of the left tooth member. A spacing adjustment receiving portion is provided in which a spacing adjustment recessed portion that can be fitted on the front side and a bent receiving piece portion joined to a rear side of the spacing adjustment folding protrusion are provided, and the left side of the central tooth member main body in the central tooth member is provided. The side tooth portion is provided with a spacing adjustment bending protrusion for fitting into and joining the spacing adjustment recess in the left tooth member or other center tooth member from the blade side to the rear side, and the center tooth member main body includes A gap-adjusting concave portion that can be fitted into a front side of the gap-adjusting bent protrusion in the right tooth member or another central tooth member, and a bent receiving piece portion that joins the rear side of the interval-adjusting bent protrusion. In the side-by-side structure of the right tooth member, the single tooth member or plural central tooth members, and the left tooth member. The most main feature is that the resistance against bending load acting on the tooth board is improved by the multi-surface joint structure of the spacing adjustment folding protrusion and the spacing adjustment recess and the bending receiving piece in between. And

  According to the first aspect of the present invention, the right tooth member disposed on the right side of the bucket, the left tooth member disposed on the left side of the bucket, and the singular unit disposed between the right tooth member and the left tooth member, or Based on the parallel structure of multiple tooth members consisting of multiple central tooth members, it can handle buckets of different sizes and acts on the tooth machine itself while preventing increase in the thickness of the spacing adjustment mechanism element It is possible to realize and provide a tooth machine attached to a bucket for an excavator machine that can improve resistance to bending load.

  According to the invention of claim 2, the right tooth member disposed on the right side of the bucket, the left tooth member disposed on the left side of the bucket, and the central tooth member disposed in parallel between the right tooth member and the left tooth member. It is possible to handle buckets of different sizes based on the triple parallel structure of the tooth members made of the above, and to improve resistance to bending load acting on the tooth board itself while preventing an increase in the thickness of the spacing adjusting mechanism element Therefore, it is possible to realize and provide a tooth board attached to a bucket for an excavator machine.

  According to the invention of claim 3, the right tooth member disposed on the right side of the bucket, the left tooth member disposed on the left side of the bucket, and a single piece arranged in parallel between the right tooth member and the left tooth member, or Based on the parallel structure of multiple tooth members consisting of multiple central tooth members, it can handle buckets of different sizes and acts on the tooth machine itself while preventing increase in the thickness of the spacing adjustment mechanism element Attached to a bucket for a shovel machine that can improve the resistance to bending load, and prevent one or more central tooth members from falling off and the left tooth member from falling off. Can be realized and provided.

  According to the invention of claim 4, the right tooth member disposed on the right side of the bucket, the left tooth member disposed on the left side of the bucket, and the central tooth member disposed between the right tooth member and the left tooth member. It is possible to handle buckets of different sizes based on the triple parallel structure of the tooth members made of the above, and to improve resistance to bending load acting on the tooth board itself while preventing an increase in the thickness of the spacing adjusting mechanism element In addition, it is possible to realize and provide a tooth board attached to a bucket for an excavator machine that can prevent the central tooth member from falling off and also prevent the left tooth member from falling off.

  According to the invention described in claim 5, it is possible to realize and provide a novel bucket for a shovel machine provided with a tooth board having the effect of the idea described in any one of claims 1 to 4.

  According to the invention described in claim 6, by providing the tooth board having the up-down / left-right reversing structure, the tooth board having the effects of the invention described in any one of claims 1 to 4 is provided. It is possible to realize and provide a bucket for a novel excavator machine that exhibits the same effect as the described device and can diversify the manner of use of the tooth board.

FIG. 1 is a schematic perspective view of a tooth board (triple structure) attached to a bucket for an excavator machine according to an embodiment of the present invention. FIG. 2 is a schematic exploded perspective view of a tooth machine (triple structure) attached to a bucket for an excavator machine according to the present embodiment. FIG. 3 is a schematic cross-sectional view showing a part of the fitting structure of the right tooth member and the central tooth member in the tooth board attached to the bucket for the shovel machine according to the present embodiment in the form of a two-dot chain line. FIG. 4 is a schematic exploded perspective view showing a configuration of a tooth board (triple structure) attached to a bucket for an excavator machine according to the present embodiment and having a configuration in which a drop-off prevention mechanism is added. 5 is a schematic cross-sectional view showing a part of the fitting structure of the right tooth member and the central tooth member of the modified tooth board of FIG. FIG. FIG. 6 is a schematic perspective view of a bucket for an excavator machine including the tooth board (triple structure) shown in FIG. FIG. 7 is a schematic sectional view showing a part of a fitting structure of a plurality of tooth members constituting a conventional tooth board in the form of a two-dot chain line.

  In the present invention, the triple tooth members are arranged side by side so that the distance can be adjusted, and can be applied to buckets of different sizes, and the bending load acting on the tooth board itself is prevented while increasing the thickness of the distance adjusting mechanism element. A right tooth member disposed on the right side of the bucket, a left tooth member disposed on the left side of the bucket, and an object of realizing and providing a tooth board attached to the bucket for the excavator machine with improved resistance to The three tooth members are arranged side by side between the right tooth member and the left tooth member, each having a pin hole for a connecting pin on the base end side and projecting from the bucket side. A tooth attached to a bucket for an excavator machine provided with a recessed portion for insertion that can be fitted with an adapter, and an exposed blade portion that digs into earth and sand for excavation on the protruding end side. In the right tooth member, a left side surface portion of the right tooth member main body is provided with a spacing adjustment bent protrusion from the blade portion side to the rear side, and the right side surface portion of the left tooth member main body in the left tooth member. A gap adjusting concave portion that can be fitted into the front side of the gap adjusting bent protrusion of the central tooth member and a bent receiving piece portion that is joined to the rear side of the gap adjusting bent protrusion from the blade portion side to the rear portion. An interval adjusting fold is provided in which an interval adjusting receiving portion is provided, and is inserted into the interval adjusting concave portion of the left tooth member from the blade side to the rear side on the left side surface portion of the central tooth member main body of the central tooth member. The central tooth member main body is provided with a curved protrusion, and a gap adjusting recess and a front part into which the front side of the gap adjusting bent protrusion of the right tooth member can be fitted. It is configured by providing an interval adjustment receiving portion in which a bent receiving piece portion joined to the rear side of the interval adjustment bending protrusion is provided, and is adjacent in the parallel arrangement structure of the right tooth member, the central tooth member, and the left tooth member. This is realized by a structure in which the resistance against bending load acting on the tooth board is improved by the multi-surface joint structure of the spacing adjustment folding protrusion, the spacing adjustment concave portion, and the bending receiving piece portion.

  Hereinafter, a tooth machine attached to a bucket for an excavator machine according to an embodiment of the present invention and a bucket for an excavator machine provided with the tooth machine will be described in detail with reference to the drawings.

  In this embodiment, the relationship between the left and right directionality is defined as shown in FIG.

  The tooth board 1 attached to the bucket 41 shown in FIG. 6 for the shovel machine in this embodiment includes a right tooth member 11 arranged on the right side of the bucket 41 and a left side of the bucket as shown in FIGS. The left tooth member 31 is arranged in parallel, and the right tooth member 11 and the central tooth member 21 are juxtaposed between the left tooth member 31 and the three tooth members.

  The right tooth member 11, the central tooth member 21, and the left tooth member 31 have a right tooth member main body 12, a central tooth member main body 22, and a left tooth member main body 32, respectively, and the right tooth member main body 12 and the central tooth member main body. 22, each base end side of the left tooth member main body 32 is provided with pin holes 13 a, 23 a, 33 a for connecting pins (not shown), and a fitting recess for fitting an adapter 42 protruding from the bucket 41 side. 13, 23, 33 are provided.

  Blade portions 13b, 23b, and 33b that are digged into excavated earth and sand are provided on the protruding end sides of the right tooth member main body 12, the central tooth member main body 22, and the left tooth member main body 32 in an exposed state.

  On the left side surface portion of the right tooth member main body 12 of the right tooth member 11, the blade portion 13b side is high from the blade portion 13b side to the rear side, the rear portion side is low when viewed from the side surface side, and the middle portion is lowered rearward. An interval adjusting folding protrusion 14 is provided which is connected to the inclined surface 15 and has a bent uneven shape.

  The front side of the bent protrusion 24 for adjusting the interval of the central tooth member 21 to be described later can be fitted into the right side surface portion of the left tooth member main body 32 of the left tooth member 31 from the blade portion 33b side to the rear side. A distance between the gap adjusting concave part 36 that forms a rectangular parallelepiped space and the bent receiving piece part 37 joined to the rear side of the distance adjusting bent protrusion 24 of the central tooth member 21 via the slope part 35. An adjustment receiving portion 38 is provided.

  On the left side surface portion of the central tooth member main body 22 in the central tooth member 21, a spacing adjustment folding protrusion 24 having the same shape as that of the spacing adjustment folding protrusion 14 of the right tooth member 11 is provided. .

  That is, the spacing adjustment folding protrusion 24 is continuously provided from the blade 23b side to the rear side by a slope 25 that is high on the blade 23b side and low on the rear side as viewed from the side, and descends rearward in the middle. It is made the bent stepped shape.

  In addition, on the right side of the central tooth member main body 22, a gap adjusting recess 26 and a gap adjusting bent protrusion that can be inserted into the front side of the gap adjusting bent protrusion 14 of the right tooth member 11. 14 is provided with an interval adjusting receiving portion 28 in which a bent receiving piece portion 27 joined to the rear side of the 14 is connected via a slope portion 29.

  Next, the resistance effect with respect to the bending load F of the tooth machine 1 attached to the bucket 41 for the shovel machine according to the present embodiment will be described.

  FIG. 3 shows a fitting structure of the right tooth member 11 and the central tooth member 21 as a representative example for explaining the resistance effect against the bending load F of the tooth board 1.

  In the tooth board 1 according to the present embodiment, in the juxtaposed structure of the right tooth member 11 and the central tooth member 21 that are adjacent to each other, as shown in FIG. The front side of the portion 14 is fitted into and joined to the gap adjusting recess 26 of the central tooth member 21, the rear side of the gap adjusting bent protrusion 14 is joined to the bent receiving piece portion 27, and the gap adjustment is further performed. The lower surface of the slope portion 15 of the bending projection 14 is joined to the upper surface of the slope portion 29 of the central tooth member 21.

  Thus, the plate thickness of each of these elements is obtained by the multi-surface joining structure of the spacing adjusting bent protrusion 14 of the right tooth member 11 and the spacing adjusting recessed portion 26 and the bent receiving piece 27 of the central tooth member 21. The resistance against a bending load F acting on the tooth board 1 from, for example, the vertical direction can be reliably improved as compared with the conventional example shown in FIG.

  The same applies to the parallel arrangement structure of the central tooth member 21 and the left tooth member 31.

  Further, in the tooth board 1 according to the present embodiment, a three-side-by-side structure in which the intervals of the right tooth member 11, the central tooth member 21, and the left tooth member 31 can be adjusted, so that the bucket 41 for different width sizes can be used. It is possible.

  In the present embodiment, a three-sided structure in which the distances between the right tooth member 11, the central tooth member 21, and the left tooth member 31 can be adjusted is provided. Of course, it is also possible to construct a tooth machine 1 having a plurality of juxtaposed arrangements, such as four, five, six, etc. as a whole. The same effect can be exhibited.

  Next, a tooth board 1A according to a modification will be described with reference to FIGS.

  In addition, in the tooth board 1A according to the modified example, the same elements as those in the tooth board 1 according to the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 5 shows a fitting structure of the right tooth member 11 and the central tooth member 21 in the tooth board 1A according to the modification as a representative example.

  The tooth board 1A according to the modified example has the same basic configuration as the tooth board 1A shown in FIG. 2 except that the fall prevention mechanism part 2 is provided below the protruding end of the spacing adjustment folding protrusion 14 of the right tooth member 11. For example, a drop-preventing protrusion 14a having a right-angled triangular cross section is provided, and the drop-preventing mechanism portion 2 is formed at a lower portion of the protruding end of the interval adjusting bent protrusion 24 of the central tooth member 21. The shape of the drop-preventing protrusion 24a having the shape, the interval adjusting recess lower piece 26a forming the interval adjusting recess 26 of the central tooth member 21 is made shorter than the interval adjusting recess upper piece 26b, and the right tooth. In addition to engaging with the drop-preventing protrusion 14a of the member 11, the interval adjusting recess lower piece 36a forming the interval adjusting recess 36 of the left tooth member 31 is replaced with the interval adjusting recess upper piece 36b. Shorter It is characterized that the engagement with the drop prevention protrusion 24a of the central tooth member 21 Te.

  In the tooth board 1A according to the modified example, according to the parallel arrangement structure of the right tooth member 11 and the central tooth member 21 shown in FIG. 5, a drop-off force acts on the central tooth member 21 when the tooth board 1A is actually used. In this case, the drop-out force of the central tooth member 21 is received by the engagement of the lower adjustment piece 26a for adjusting the distance of the central tooth member 21 with the drop preventing projection 14a of the right tooth member 11, whereby the central tooth member 21 is received. It is possible to prevent the 21 tooth board 1A from falling off.

  Further, as shown in FIG. 5, the lower surface of the slope portion 15 of the spacing adjustment bent protrusion 14 in the right tooth member 11 is joined to the upper surface of the slope portion 29 of the central tooth member 21, and the central tooth member 21 is dropped. Since a frictional force against the force is generated, this frictional force also contributes to preventing the central tooth member 21 from falling off.

  In addition to this, although not shown, in the side-by-side structure of the central tooth member 21 and the left tooth member 31, it is possible to prevent the left tooth member 31 from falling off the tooth board 1A in the same manner as described above.

  As described above, according to the tooth machine 1A according to the modified example, since it has the same configuration as the tooth machine 1 of the embodiment, the tooth machine 1 is prevented from increasing in the thickness of each element, for example, from the vertical direction. The resistance against the acting bending load F can be reliably improved as compared with the conventional example shown in FIG. 7, and the above-described configuration prevents the central tooth member 21 and the left tooth member 31 from falling off the tooth board 1A. It becomes possible.

  In the modified example, it is possible to support for the buckets 41 of different width sizes, a plurality of the central tooth members 21 are arranged in parallel such as 2, 3, 4, etc. Similarly to the case of the tooth machine 1 of the embodiment, it is possible to configure the tooth machine 1 </ b> A having a parallel structure of 6 or the like.

  FIG. 6 shows a bucket 41 for an excavator machine provided with the tooth board 1 of the embodiment via an adapter 42.

  According to the bucket 41 provided with the tooth board 1 of this embodiment, the bucket 41 for a novel excavator machine that exhibits the effects of the embodiments described above can be obtained.

  Further, although not shown, a modified excavator bucket 41 can be constructed by attaching the tooth board 1A of the modified example via an adapter 42. In this case, a novel excavator that exhibits the effect of the modified example described above. It can be set as the bucket 41 for machines.

  Further, although not shown, a bucket 41 for an excavator machine in which a tooth machine in which the tooth machine 1 of the embodiment is turned upside down and left and right or a tooth machine in which the tooth machine 1A of the modified example is turned upside down and left and right is attached via an adapter 42 is provided. In this case as well, the same effects as those described above can be exhibited, and the usage mode of the tooth board can be diversified.

  The tooth machine of the present invention can be widely applied to various buckets used in work machines that perform excavation and the like such as a power shovel and an excavator loader.

DESCRIPTION OF SYMBOLS 1 Tooth board 1A Tooth board 2 Fall prevention mechanism part 11 Right tooth member 12 Right tooth member main body 13 Insertion recessed part 13a Pin hole 13b Blade part 14 Space | interval adjustment bending protrusion part 14a Fall prevention protrusion part 15 Slope part 21 Center Tooth member 22 Central tooth member main body 23 Insertion recessed portion 23a Pin hole 23b Blade portion 24 Space adjustment bent protrusion 24a Drop prevention protrusion 25 Slope portion 26 Space adjustment recess 26a Space adjustment recess lower piece 26b Space Recessed part upper part 27 Folding receiving part 28 Spacing receiving part 29 Slope part 31 Left tooth member 32 Left tooth member main body 33 Inserting recessed part 33a Pin hole 33b Blade part 35 Slope part 36 Spacing part 36a Recessed part for spacing adjustment 36b Upper piece for spacing adjustment recessed part 37 Bending receiving part 38 Spacing part for spacing adjustment 41 Bucket G 42 Adapter F Bending load

Claims (6)

A right tooth member disposed on the right side of the bucket, a left tooth member disposed on the left side of the bucket, and a plurality of single tooth members or a plurality of central tooth members arranged between the right tooth member and the left tooth member. These tooth members are arranged side by side, each having a pin hole for a connecting pin on the base end side, provided with a recessed portion for insertion into which an adapter protruding from the bucket side can be mounted, and each for the excavation end side. It is a tooth machine attached to a bucket for an excavator machine provided with an exposed blade part that digs into earth and sand,
The left tooth side of the right tooth member main body in the right tooth member is provided with a spacing adjustment folding protrusion from the blade side to the rear side,
The gap adjustment recess and the gap adjustment fold, in which the front side of the gap adjustment folding protrusion of the central tooth member can be fitted from the blade side to the rear side on the right side surface of the left tooth member main body of the left tooth member. Provided with an interval adjustment receiving portion where the bent receiving piece portion joined to the rear side of the bent protrusion portion is connected,
A spacing adjustment bent protrusion that fits into and joins the spacing recess in the left tooth member or other central tooth member from the blade side to the rear side on the left side surface of the central tooth member main body of the central tooth member. The central tooth member main body has a recess for adjusting the interval and a bent portion for adjusting the interval, in which the front side of the bent protrusion for adjusting the interval of the right tooth member or the other central tooth member can be fitted. Providing an interval adjustment receiving portion in which the bent receiving piece portion joined to the rear side of the protruding portion is connected;
Consisting of
In the side-by-side structure of the right tooth member, the single tooth member or the plurality of central tooth members, and the left tooth member, the spacing adjustment folding protrusion, the spacing adjustment recess, and the bending receiving piece portion between adjacent ones. A tooth machine attached to a bucket for an excavator machine, which has improved resistance to bending load acting on the tooth machine by a multi-surface joint structure. A parallel arrangement of three tooth members comprising a right tooth member disposed on the right side of the bucket, a left tooth member disposed on the left side of the bucket, and a central tooth member disposed between the right tooth member and the left tooth member. A blade that has a pin hole for a connecting pin on the base end side, has a recess for insertion that can be fitted with an adapter that protrudes from the bucket side, and that cuts into the earth and sand for excavation on each protruding end side A tooth machine attached to a bucket for an excavator machine with a portion exposed,
The left tooth side of the right tooth member main body in the right tooth member is provided with a spacing adjustment folding protrusion from the blade side to the rear side,
The gap adjustment recess and the gap adjustment fold, in which the front side of the gap adjustment folding protrusion of the central tooth member can be fitted from the blade side to the rear side on the right side surface of the left tooth member main body of the left tooth member. Provided with an interval adjustment receiving portion where the bent receiving piece portion joined to the rear side of the bent protrusion portion is connected,
The left side surface portion of the central tooth member main body in the central tooth member is provided with an interval adjusting bending protrusion for fitting into and joining the interval adjusting recess in the left tooth member from the blade side to the rear side, and The central tooth member main body has a gap adjusting recessed portion into which the front side of the gap adjusting bent protrusion of the right tooth member can be fitted, and a bent receiving piece portion to which the rear side of the gap adjusting bent protrusion is joined. Providing a series of spacing adjustment receivers;
Consisting of
In the juxtaposed structure of the right tooth member, the central tooth member, and the left tooth member, a multi-surface joint structure of the spacing adjustment folding protrusion, the spacing adjustment recess, and the bending receiving piece between adjacent ones. The tooth machine attached to the bucket for an excavator machine characterized by having improved resistance to a bending load acting on the tooth machine. A right tooth member disposed on the right side of the bucket, a left tooth member disposed on the left side of the bucket, and a plurality of single tooth members or a plurality of central tooth members arranged between the right tooth member and the left tooth member. These tooth members are arranged side by side, each having a pin hole for a connecting pin on the base end side, provided with a recessed portion for insertion into which an adapter protruding from the bucket side can be mounted, and each for the excavation end side. It is a tooth machine attached to a bucket for an excavator machine provided with an exposed blade part that digs into earth and sand,
In the right tooth member, a left side surface portion of the right tooth member main body is provided with a spacing adjustment folding projection from the blade side to the rear side, and a drop prevention mechanism portion is provided below the projection end of the spacing adjustment folding projection. Providing a drop prevention protrusion that constitutes
The gap adjustment recess and the gap adjustment fold, in which the front side of the gap adjustment folding protrusion of the central tooth member can be fitted from the blade side to the rear side on the right side surface of the left tooth member main body of the left tooth member. While it is set as the structure which the bending receiving piece part which the back side of a curved protrusion part joins follows. The configuration is such that the lower part of the interval adjusting concave part that forms the concave part for adjusting the distance is made shorter than the upper piece of the concave part for adjusting the distance, and the protrusion for preventing the fall is engaged.
A spacing adjustment bent protrusion that fits into and joins the spacing recess in the left tooth member or other central tooth member from the blade side to the rear side on the left side surface of the central tooth member main body of the central tooth member. The central tooth member main body has a recess for adjusting the interval and a bent portion for adjusting the interval, in which the front side of the bent protrusion for adjusting the interval of the right tooth member or the other central tooth member can be fitted. The bent receiving piece part joined to the rear side of the projecting part is connected, and a drop preventing projecting part constituting a fall preventing mechanism part is provided at the projecting end lower part of the spacing adjusting bent projecting part, and the spacing adjusting recessed part is provided. The distance adjustment concave part lower piece that forms the length is shorter than the distance adjustment concave part upper piece, and the drop prevention protrusion is engaged,
In the side-by-side structure of the right tooth member, the single tooth member or the plurality of central tooth members, and the left tooth member, the spacing adjustment folding protrusion, the spacing adjustment recess, and the bending receiving piece portion between adjacent ones. With the multiple-surface joining structure, the resistance against bending load acting on the tooth board is improved, and in the side-by-side structure of the right tooth member, one or more central tooth members, the drop preventing protrusion One or a plurality of central tooth members are prevented from falling off by engaging with the gap adjusting recess lower piece, and in the side-by-side structure of the central tooth member and the left tooth member, the drop preventing protrusion and the A tooth machine attached to a bucket for an excavator machine, wherein the left tooth member is prevented from falling off by engaging with a lower piece of an interval recess. A parallel arrangement of three tooth members comprising a right tooth member disposed on the right side of the bucket, a left tooth member disposed on the left side of the bucket, and a central tooth member disposed between the right tooth member and the left tooth member. A blade that has a pin hole for a connecting pin on the base end side, has a recess for insertion that can be fitted with an adapter that protrudes from the bucket side, and that cuts into the earth and sand for excavation on each protruding end side A tooth machine attached to a bucket for an excavator machine with a portion exposed,
In the right tooth member, a left side surface portion of the right tooth member main body is provided with a spacing adjustment folding projection from the blade side to the rear side, and a drop prevention mechanism portion is provided below the projection end of the spacing adjustment folding projection. Providing a drop prevention protrusion that constitutes
The gap adjustment recess and the gap adjustment fold, in which the front side of the gap adjustment folding protrusion of the central tooth member can be fitted from the blade side to the rear side on the right side surface of the left tooth member main body of the left tooth member. While providing the receiving part for space | interval adjustment which the bending receiving piece part which the back side of a curved protrusion part joins continues. The configuration is such that the lower part of the interval adjusting concave part that forms the concave part for adjusting the distance is made shorter than the upper piece of the concave part for adjusting the distance, and the protrusion for preventing the fall is engaged.
The left side surface portion of the central tooth member main body in the central tooth member is provided with an interval adjusting bending protrusion for fitting into and joining the interval adjusting recess in the left tooth member from the blade side to the rear side, and The central tooth member main body has a gap adjusting recessed portion into which the front side of the gap adjusting bent protrusion of the right tooth member can be fitted, and a bent receiving piece portion to which the rear side of the gap adjusting bent protrusion is joined. A drop prevention protrusion that constitutes a drop prevention mechanism is provided below the protruding end of the interval adjustment bent protrusion, and the interval adjustment recess lower piece that forms the interval adjustment recess is adjusted. It is configured to be shorter than the upper concave part for engagement, and the protrusion for preventing fall is engaged,
In the juxtaposed structure of the right tooth member, the central tooth member, and the left tooth member, a multi-surface joint structure of the spacing adjustment folding protrusion, the spacing adjustment recess, and the bending receiving piece between adjacent ones. By improving the resistance to the bending load acting on the tooth board, and in the side-by-side structure of the right tooth member and the central tooth member, by the engagement between the drop-preventing protrusion and the gap adjusting recess lower piece The central tooth member is prevented from falling off, and in the side-by-side structure of the central tooth member and the left tooth member, the falling off of the left tooth member is prevented by the engagement between the drop prevention protrusion and the lower part of the gap adjusting recess. A tooth machine attached to a bucket for an excavator machine, characterized in that it is configured as described above.   A bucket for an excavator machine comprising the tooth board according to any one of claims 1 to 4.   A bucket for an excavator machine, comprising a tooth machine having the tooth machine according to any one of claims 1 to 4 having a vertically and horizontally reversed structure.

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