JP6513521B2 - Tooth plate attached to bucket for shovel machine and bucket for shovel machine equipped with the tooth plate - Google Patents

Description

  The present invention relates to a tooth board attached to a bucket for a shovel machine used for civil engineering work and a bucket for an shovel machine provided with the tooth board, and more specifically, a plurality of tooth members are juxtaposed so as to be adjustable in distance. A tooth board attached to a bucket for a shovel machine which can cope with buckets of different sizes and does not cause a reduction in work efficiency even when the interval adjustment is performed, and for a shovel machine provided with the tooth board It relates to the bucket.

  Conventionally, the base of the adapter member is fixed to the bucket tip of the shovel machine such as a power shovel or shovel loader by welding or other method at the bottom end position of the bottom, and this adapter member-engagement recess of toothing machine for ground work And fixed the adapter member and the toothed plate integrally by means of fixing means such as a lock pin member, thereby carrying out loading of excavated earth, sand, gravel, rock pieces, etc. onto the ground or transport vehicle etc. .

  In this type of tooth washer, it is preferable that a plurality of tooth members be juxtaposed so as to be adjustable in spacing in order to correspond to buckets of different sizes, so that the entire width can be changed widely.

  Patent Document 1 discloses, as a related art of the present invention, a tooth member removably mounted on an excavating edge of a bucket of a shovel-type excavator via an adapter, the tooth member being capable of being fitted with the adapter A gap setting portion is provided on one side in the left-right direction on the back side of the insertion recess, and the tooth plate portion is formed on one side of the gap setting portion. An insertion plate portion is formed, a back side plate portion forming the tooth plate portion is formed on the other side of the gap setting portion, and the insertion side portion is inserted between the back side plate portion on the other side of the fitting recess. There is disclosed a tooth member for a shovel-type excavator having a configuration in which the pressing plate portion is provided with a plug-in gap through which the plate portion can be inserted.

  However, in the tooth member for excavator based excavating machine of Patent Document 1, the gap setting portion is protruded at one side in the left and right direction on the back side of the fitting recess, and the tooth plate portion is configured at one side of the gap setting portion. Forming the insertion plate portion, forming the back side plate portion constituting the tooth plate portion on the other side of the gap setting portion, and the difference between the back side plate portion and the other side of the fitting recess A holding plate is protruded with a insertion gap into which the insertion plate can be inserted, and a plurality of teeth members are juxtaposed to form a plurality of fitting structures between the gap setting portion and the insertion plate. It is arranged side by side to make a tooth board.

  For this reason, in the tooth board of such a configuration, the upper surface of the gap setting part and the insertion plate part is exposed and there is no shielding member. In the case where the gap between the adjacent tooth members is adjusted by adjusting the fitting position of the gap setting portion and the insertion plate portion and the width in the entire parallel arrangement direction is expanded, the insertion plate portion There is a gap between the end of the fitting and the deepest part of the gap setting part, and the amount of leakage of earth and sand from this gap increases, which lowers the efficiency of excavation work such as earth and sand, or the deepest part of the gap setting part It involves the problem that it is necessary to remove the deposited soil, and because the bucket edge (lip) for the shovel-type excavator is exposed during the digging operation, the bucket edge (lip) is worn away. It also includes the problem of

JP, 2010-65421, A

  The problem to be solved by the present invention is that a plurality of tooth members can be arranged side by side so as to be able to adjust the spacing, and can cope with buckets of different sizes, and even when the spacing is adjusted, gaps between the plurality of tooth members It is less likely that earth and sand etc. will leak from the ground and cause a decrease in working efficiency, and even when the adapter pitch is wide, this is a bucket for shovel machines that also has a function to protect the bucket edge (lip). The point is that there is no tooth board to be attached conventionally.

  The toothing machine attached to the bucket for a shovel machine according to the present invention can cope with buckets of different sizes by arranging a plurality of tooth members side by side so that the space can be adjusted, and even when the space is adjusted. The object of the present invention is to provide a bucket for a shovel machine having both a protective function of the bucket edge (lip portion) without causing the leakage of soil and the like from the gap between the tooth members and causing less deterioration of working efficiency. Each has a pin hole for the connection pin on the base end side, and has a fitting recessed part to which an adapter made to project from the bucket side can be attached, and a tooth part to bite into earth and sand etc for digging is exposed on each projecting end side It is a tooth board attached to the bucket for shovel machines by the parallel arrangement structure of a plurality of tooth members provided in the state, which is adjacent to both side surfaces of the plurality of tooth members. A gap adjusting protrusion is provided on one side of the tooth member on which the other tooth members are juxtaposed in parallel, and a recess for adjusting the gap by the upper surface shielding member and the bottom member is provided on the other side, Among the tooth members, the tooth members in which the other tooth members are juxtaposed to only one side surface portion are provided with a projection for adjusting the spacing, or a recess for adjusting the spacing by the top surface shielding member and the bottom member, Slide fitting displacement of the space adjustment projection of the tooth member next to the space adjustment recess of the tooth member in which another tooth member is arranged side by side on the surface, or another tooth member arranged side by side The slide fitting displacement of the gap adjusting projection of the tooth member with respect to the gap adjusting recess of the tooth member next to the tooth member maintains the straight lines in the arranging direction of the teeth while aligning the teeth members in parallel. Setting direction While each gap adjustment is possible, each gap between teeth members in a region occupying the lower position of each top surface shielding member except the region of each tooth portion is shielded by each top surface shielding member. The most important feature is the combination of the protection function of the bucket edge (lip part).

According to the invention of claim 1, the work efficiency can be improved in the excavation work of soil and the like as a triple construction in which the right tooth member and the left tooth member are arranged in parallel on both sides of the central tooth member. Soil cleaning work is also simple, and it is attached to the bucket for shovel machine which has an excellent function of being able to flexibly respond by adjusting the distance of each tooth member even for buckets with different sizes. A tooth board can be realized and provided.

According to the second aspect of the present invention, the effects of the first aspect of the present invention can be achieved, and an adapter protruding from the bucket side is coaxially mounted on the fitting concave portion of each tooth member. Accordingly, it is possible to realize and provide a tooth board attached to a bucket for a shovel machine which can realize the same sense of use and workability as a tooth genuinely manufactured by a manufacturing company such as a bucket.

According to the invention of claim 3, the effects of the invention of claim 1 or 2 can be obtained, and among the teeth members, two or more teeth members on which other teeth members are juxtaposed adjacent to both side surface portions are provided. A bucket for a shovel machine having an excellent function of being able to flexibly cope with various buckets having a large size and a narrow size by one unit by arranging in parallel and forming a multiple arrangement of four or more in parallel. Can be realized and provided.

According to the invention of claim 4, the effect of the invention according to any one of claims 1 to 3 is exhibited, the work efficiency at the time of excavating work such as earth and sand is excellent, and the simplification of the earth and sand washing work after use is realized. It is possible to realize and provide a bucket for a shovel machine that exhibits a novel function of being able to

FIG. 1 is a schematic perspective view of a state where a right tooth member and a left tooth member are attached to both sides of a central tooth member in a tooth board attached to a bucket for a shovel machine according to an embodiment of the present invention. FIG. 2 is a schematic perspective view in which the central tooth member, the right tooth member, and the left tooth member are separated in the tooth board according to the present embodiment. FIG. 3 is a front view, a plan view, a bottom view, a left side view, a right side view and a rear view of a central tooth member in a tooth board according to the present embodiment. FIG. 4 is a front view, a plan view, a bottom view, a left side view, a right side view and a rear view of a right tooth member in a tooth board according to the present embodiment. FIG. 5 is a front view, a plan view, a bottom view, a left side view, a right side view and a rear view of the left tooth member in the tooth board according to the present embodiment. FIG. 6 is a schematic cross-sectional view showing a state in which, for example, a central tooth member in a tooth board according to the present embodiment is attached to an adapter. FIG. 7 is a schematic plan view of a state in which the central tooth member, the right tooth member, and the left tooth member in the fitting state according to the present embodiment have a minimum width in the side-by-side installation direction. FIG. 8 shows a state in which the distance between the central tooth member, the right tooth member and the left tooth member in the arranging direction is expanded in the state in which the central tooth member, the right tooth member and the left tooth member are fitted in the tooth board according to the present embodiment. FIG. FIG. 9 is a schematic plan view of a bucket for a shovel machine provided with a tooth board according to the present embodiment.

  The present invention can cope with buckets of different sizes by arranging a plurality of tooth members side by side so as to be able to adjust the distance, and in the case where the distance is adjusted, earth and sand etc. leak from the gaps between the plurality of tooth members. In addition, even when the adapter pitch is small, by combining the protection function of the bucket edge (lip portion), the wear of the bucket edge (lip portion) can be reduced, and the work efficiency does not decrease. The purpose of providing a tooth board attached to a bucket for a shovel machine, each having a pin hole for a connecting pin on the base end side, is provided with a fitting concave portion to which an adapter projected from the bucket side can be attached The left tooth member, the central tooth member, and the right tooth member arranged side by side are provided with exposed teeth in the protruding end side on the protruding end side. It is a tooth board attached to a bucket for bell machine, and when viewed from the projecting end side of the tooth board, the upper surface of the left side surface portion of the right tooth member on the central tooth member side protrudes from the base end side. A gap adjusting recess for the central tooth member is provided by an upper surface shielding member having a shape capable of falling to the side, and a bottom surface member having a constant distance from the upper surface shielding member and connected to the tooth portion in a step. A protrusion for adjusting the distance fitted in the left side of the central tooth member is provided on the right side on the central tooth side of the tooth member, and the distance between the right tooth is adjusted on the right side of the right tooth of the central tooth member. An upper surface shield is provided with a gap adjusting projection for slidingly fitting in the recess, and the upper surface of the left side surface of the central tooth member on the left tooth side is shaped so that earth and sand etc. can flow from the proximal end to the projecting end Element And a recess for adjusting the distance between the upper face shielding member and a bottom member which has a predetermined distance and is connected to the tooth portion in a staggered manner, and a recess for adjusting the distance of the right tooth member of the protrusion for adjusting the distance of the central tooth member. The teeth are maintained in a straight line in the arranging direction by the slide fitting displacement with respect to the part and the slide fitting displacement with respect to the space adjusting recess of the center tooth member of the space adjusting projection of the left tooth member. While making it possible to adjust the spacing between the right tooth member and the center tooth member and between the left tooth member and the center tooth member in the parallel direction, and excluding the regions of the teeth by the top surface shielding members. With a configuration in which the gaps between the right tooth member and the center tooth member, and between the left tooth member and the center tooth member in the region occupying the lower position of each upper surface shielding member are shielded. It was realized.

  Hereinafter, a tooth board attached to a bucket for a shovel machine according to an embodiment of the present invention and a bucket for a shovel machine provided with the tooth board will be described in detail with reference to FIGS. 1 to 9.

  A tooth board (hereinafter referred to as a "tooth board") 1 attached to a bucket 51 (described in detail later) for a shovel machine according to the present embodiment has a triple-arranged structure, as shown in FIGS. A central tooth member 11, a right tooth member 21 and a left tooth member 31 are provided, and they are detachably attached to an adapter 41 attached to a bucket 51 for a shovel machine.

  In addition, in FIG. 1, the right, center, and left directionality regarding the tooth board 1 are defined as shown to the same figure, and the following description is given.

  As shown in FIG. 1, FIG. 2 and FIG. 3, the central tooth member 11 is a fitting concave portion 12 for mounting the adapter 41 from the vicinity of the center in the juxtaposed direction of the proximal end side. For example, a square cylindrical adapter cylindrical body portion 13 with a pin hole 12a for forming an adapter is provided, and the right tooth is slide fitted from the approximate center in the side-by-side direction to the right tooth member 21 and excavated The tooth portion 15 to bite into earth and sand etc. is in the exposed state and is provided in the juxtaposed direction as the spacing adjustment protruding part 14, and from the approximate center of the juxtaposed direction to the left A central tooth member body 11A is provided.

  The fitting concave portion 12 in the adapter cylindrical portion 13 is tapered toward the projecting end side in a rectangular parallelepiped space whose inward constant range from the opening portion corresponds to the outer shape of the adapter 41. It has a shape that forms a space.

  Then, the adapter 41 is mounted in the fitting concave portion 12, and a pin (not shown) penetrating the pin hole 12 a is fitted to the adapter 41 to attach the central tooth member 11 to the bucket 51 via the adapter 41. It is configured to be attached to

  The interval adjusting protrusion 14 is a region of the pin hole 12a of the adapter cylinder 13 located on the base end side of the central tooth member main body 11A, and a region of the flat protrusion 14c adjacent to the region in the pin hole 12a. The region extending to the substantially central portion of the central tooth member main body 11A in the projecting direction is the sloped region 14a, and the region extending from the sloped region 14a in the projecting direction to the region before the teeth 15 Is a flat area 14b.

  The interval adjusting recess 16 for the left tooth member 31 has a flat projecting portion 17c on the base end side and both are partially on the left corner region of the interval adjusting protrusion 14 in the projecting direction right corner region The upper surface shielding member 17 integrally connected in the overlapping state and the upper surface shielding member 17 are positioned below at a constant distance, and are stepped on the lower side of the left side of the distance adjusting protrusion 14 having the teeth 15. It is formed as a space area between the flat bottom member 18 connected integrally.

  Further, a region extending from the flat projecting portion 17c in the upper surface shielding member 17 to a substantially central portion in the projecting direction is a sloped region 17a, and a region in front of the teeth 15 on the projecting direction side of the sloped region 17a. It is assumed that the flat portion region 17b extends to

  That is, the projection end side of the flat portion area 17b of the upper surface shielding member 17 is configured not to cover the upper side of the tooth portion 15.

  As shown in FIGS. 1, 2 and 4, the right tooth member 21 has a fitting concave portion 22 for mounting the adapter 41 in the projecting direction from the vicinity of the center in the juxtaposed direction of the end sides on the proximal end side. A rectangular cylindrical adapter cylindrical portion 23 with a pin hole 22a for forming a hole is formed, and the right side from the approximate center in the side-by-side arrangement direction can be slide fitted into another tooth member as necessary and the end on the projecting end side A tooth portion 25 for biting in soil for excavating on the side is an exposed state, and is a projection portion 24 for adjusting the distance provided in the parallel direction, and the left side from the approximate center in the parallel direction is the distance for the central tooth member 11 A right tooth member main body 21A as the adjustment recess 26 is provided.

  The dimension from the proximal end side of the right tooth member 21 to the projecting end is the same as that of the central tooth member 11.

  The fitting concave part 22 and the adapter cylinder part 23 have the same shape as the central tooth member 11. Further, the interval adjusting projection 24 is substantially the same as the interval adjusting projection 14 and is rigid.

  The space adjusting recess 26 for the central tooth member 11 is provided with a flat projection 27c on the base end side as in the case of the space adjusting recess 16, and the projection direction right corner region is used for the space adjustment. An upper surface shielding member 27 integrally connected in a state in which both are partially superposed on the left corner area of the projecting portion 24 and the upper surface shielding member 27 are positioned below at a constant distance and have the tooth portion 25 It is formed as a space area between the flat bottom member 28 integrally connected in a step-wise manner on the lower side of the left side of the space adjustment protrusion 24.

  Further, a region extending from the flat projecting portion 27c in the upper surface shielding member 27 to a substantially central portion in the projecting direction is defined as a sloped region 27a, and a region in front of the tooth 25 in the projecting direction from the sloped region 27a. It is assumed that the flat portion region 27b extends to

  That is, the projection end side of the flat portion region 27b of the upper surface shielding member 27 is configured not to cover the upper side of the tooth portion 25.

  The left tooth member 31 is, as shown in FIG. 1, FIG. 2 and FIG. 5, a fitting concave portion 32 for mounting the adapter 41 in the projecting direction from near the center of the juxtaposed direction of the proximal end side. A square cylindrical adapter cylinder portion 33 with a pin hole 32a for forming an adapter is provided, and a flat projection 36 is provided on the base end side, and the projection for adjusting the distance of the central tooth member 11 is approximately right from the approximate center of the projection direction There is provided a gap adjusting projection 34 which has a tooth portion 35 in a state of being exposed in a parallel arrangement direction and having a tooth portion 35 which is slide fittable into the portion 14 and which bites into earth and sand for excavating all over the end side on the projecting end side Furthermore, a left tooth member main body 31A provided with a step 36 which abuts on the left side of the upper surface shielding member 17 of the central tooth member 11 from the approximate center in the projecting direction is provided.

  A region extending from the flat protrusion 37c to the substantially central portion in the protrusion direction in the gap adjusting protrusion 34 is a sloped region 37a, and a side in the protrusion direction from the sloped region 37a and in front of the teeth 35 The area up to the area is a flat area 37b.

  The dimension from the proximal end side to the projecting end of the left tooth member 31 is the same as that of the central tooth member 11.

  The fitting concave portion 32 and the adapter cylinder portion 33 have the same shape as that of the central tooth member 11.

  In FIG. 6, for example, the center tooth member 11 in the tooth board 1 according to the present embodiment is coaxially arranged with the adapter 41 with respect to the adapter 41 attached to the bucket lip 52 which is the tip of the bucket 51 not shown. It shows the state of wearing as. The same structure is applied to the right tooth member 21 and the left tooth member 31 as well.

  That is, the central tooth member 11 is fitted by fitting the fitting concave portion 12 of the central tooth member 11 into the adapter 41 and driving the connecting pin 53 so as to penetrate the receiving hole provided in the adapter 41 from the pin hole 12a. And the adapter 41 are integrated.

  At this time, as described above, the tooth portion 15 of the central tooth member 11 is located at the tip end in the projecting direction, and the upper surface shielding member 17 is located on the upper surface side of the central tooth member main body 11A. .

  In addition, the insertion recess 12 of the central tooth member 11 and the adapter 41 are coaxially arranged (the same applies to the insertion recess 22 of the right tooth member 21 and the insertion recess 32 of the left tooth member 31). By this, it is possible to realize the same sense of use and workability as the manufacturing company genuine teeth such as the bucket 51 and the like.

  FIG. 7 shows the center tooth member 11, the right tooth member 21 and the left tooth member 31 in the toothed disc 1 having the above-described structure according to the present embodiment in a sliding manner such that the total width L1 in the side-by-side arrangement 8 shows the center tooth member 11, the right tooth member 21 and the left tooth member 31 in the tooth board 1 having the above-described configuration according to the present embodiment, and the full width L2 in the side-by-side arrangement of FIG. The slide fitting displacement is shown to be larger (L1 <L2) than in the case shown in FIG.

  As shown in FIG. 7 and FIG. 8, by making it possible to adjust the total width of the teeth board 1 in the parallel arrangement direction (for example, in the range of 110 mm to 193 mm), a plurality of adapters 41 can be obtained with only one tooth board 1. It is possible to realize a novel tooth board 1 having a wide range of freedom in that it can flexibly cope with various buckets 51 having different mounting intervals, and is also excellent in economy.

  Furthermore, in any case shown in FIG. 7 and FIG. 8, between the right end side of the interval adjusting protrusion 14 of the central tooth member 11 and the deepest portion of the interval adjusting recess 26 of the right tooth member 21. The upper gap G1 of the right tooth member 21 is covered by the upper surface shielding member 27 of the right tooth member 21 except for the region near the tooth portions 15, 25 and the deepest portion of the interval adjusting recess 16 of the central tooth member 11 and the left tooth The gap G2 between the right end side of the gap adjusting protrusion 34 of the member 31 is covered by the upper surface shielding member 17 of the central tooth member 11 except for the area near the teeth 15 and 35.

  As a result, according to the tooth board 1 according to the present embodiment, at the time of excavating work such as earth and sand using the tooth board 1, the earth and sand and the like hardly leak from the gap G1 and the gap G2, It is possible to avoid a reduction in work efficiency, and it is also possible to avoid the adhesion of soil and the like to most portions of the gap G1 and the gap G2, and also to simplify the earth and sand washing operation after use.

  According to the tooth board 1 according to the present embodiment described above, the work efficiency can be improved in excavating work such as earth and sand, etc., and the work of cleaning earth and sand after use is also simplified. In addition, it is possible to flexibly cope with different buckets 51 by adjusting the distance between the teeth members, and to realize and provide the tooth board 1 having an excellent function of also having a protection function of the bucket edge (lip portion). .

  FIG. 9 schematically shows a bucket 51 for a shovel machine to which the tooth board 1 according to the present embodiment is attached, and for three adapters 41 attached in parallel arrangement on the tip end side of the bucket 51. The interval between the fitting recess 22 for fitting the right tooth member 21, the fitting recess 12 for fitting the center tooth member 11, and the fitting recess 32 for the left tooth member 31 in the tooth disc 1 according to the present embodiment is three Are adjusted to be equal to the interval between the adapters 41, and these are attached to the corresponding adapters 41, respectively, and the tooth disc 1 is integrally formed on the tip end side of the bucket 51 using the connection pins 53, and It is attached removably.

  According to the bucket 51 for a shovel machine to which such a tooth board 1 is attached, the clearance G1 of the tooth board 1, the clearance as described above at the time of excavating work such as earth and sand using the bucket 51 The earth and sand etc. hardly leak from the part of G2 and it is possible to prevent the lowering of the working efficiency, and at the same time it has the protection function of the bucket edge (lip part). Since there is almost no adhesion of etc., the bucket 51 for a shovel machine exhibits a novel function of being excellent in work efficiency at the time of excavating work such as earth and sand and capable of simplifying the work of cleaning soil after use. Can be provided.

  Note that the tooth board 1 according to the present embodiment is a multi-row arrangement of 4-row, 5-row structure, etc., in which two or more central tooth members 11 are arranged side by side between the right tooth member 21 and the left tooth member 31. By changing the width in the side-by-side arrangement direction, it is possible to flexibly cope with various buckets 51 having wide and narrow width sizes.

  In addition, each tooth member of the tooth board 1 according to the present embodiment is provided with the protrusion for adjusting the distance on the right side and the recess for adjusting the distance by the upper surface shielding member and the bottom member on the left side. It is also possible to arrange each of these components in a left-right inverted state, provide a gap adjusting recess by the upper surface shielding member and the bottom member on the right side and provide a gap adjusting protrusion on the left side.

  Further, it is also possible to prolong the life of the tooth disc 1 itself by increasing the cutting edge length of the teeth 15, 25 and 35 by, for example, about 10 mm as compared with the conventional example.

  The tooth board of the present invention can be widely applied to various buckets used in working machines such as power shovels and shovel loaders for excavating.

DESCRIPTION OF SYMBOLS 1 tooth machine attached to the bucket for shovel machines 11 center tooth member 11A center tooth member main body 12 recessed portion for fitting 12a pin hole 13 cylindrical body portion for adapter 14 protrusion portion for adjusting distance 14a sloped region 14b flat region 14c Flat projection 15 Teeth 16 Concave for adjusting distance 17 Top shielding member 17a Slope region 17b Flat region 17c Flat projection 18 Bottom member 21 Right tooth member 21A Right tooth member main body 22 Concave recess 22a Pin hole 23 Adapter For cylinder part 24 Space adjustment protrusion 25 Teeth 26 Space adjustment recess 27 Top surface shielding member 27a Slope region 27b Flat region 27c Flat protrusion 28 Bottom member 31 Left tooth member 31A Left tooth member main body 32 For fitting Concave part 32a Pin hole 33 Adapter cylinder part 34 Space Integer protrusion 35 teeth 36 step portion 37a inclined surface region 37b flat region 37c flat projection 41 the adapter 51 bucket 52 bucket lip 53 connecting pins G1 gap G2 gap L1 full width (minimum width)
L2 full width

Claims (4)

Each has a pin hole for the connection pin on the base end side, and has a fitting recessed part to which an adapter made to project from the bucket side can be attached, and a tooth part to bite into earth and sand etc for digging is exposed on each projecting end side It is a tooth board attached to the bucket for shovel machines in the side-by-side structure of the left tooth member provided in the state, the center tooth member, and the right tooth member,
When viewed from the protruding end side of the tooth board, an upper surface shielding member has a top surface on the left side surface portion of the right tooth member on the central tooth member side so that earth and sand etc can flow from the base end side to the protruding end side; A recess for adjusting the distance for the central tooth member is provided by a shielding member and a bottom member having a predetermined distance from the tooth portion and having a predetermined interval,
A projection for adjusting a distance fitted in the left side of the central tooth member is provided on the right side of the left tooth on the side of the central tooth member,
A projection for adjusting the distance is provided on the right side surface of the central tooth member on the right tooth side of the center tooth member, and the left side surface on the left tooth member side of the central tooth member is provided with an interval adjusting protrusion. A gap adjusting recess formed by an upper surface shielding member whose upper surface has a shape such that soil and the like can flow down from the base end side to the projecting end side, and a bottom surface member having a predetermined distance from the upper surface shielding member Provide
Slide fitting displacement of the spacing adjustment projection of the central tooth member with respect to the spacing adjustment recess of the right tooth member, and spacing adjustment recess of the center tooth member of the spacing adjustment projection of the left tooth member The spacing adjustment between the right tooth member and the center tooth member, and between the left tooth member and the center tooth member in the alignment direction is maintained while maintaining the straight lines in the alignment direction by the slide fitting displacement. Between the right tooth member and the central tooth member, and the left tooth member and the central tooth in a region occupying the lower position of each upper surface shielding member except the region of the respective tooth portions by the respective upper surface shielding members. A tooth board attached to a bucket for a shovel machine characterized in that each gap between members is shielded. The toothed board attached to a bucket for a shovel machine according to claim 1 , wherein an adapter protruding from the side of the bucket is mounted coaxially in the fitting concave portion of each tooth member. Each tooth member, claims other tooth members side by side on both sides portions are arranged two or more tooth member arranged in parallel, characterized in that it is a multiple-parallel structures on 4 consecutive parallel設以The tooth board attached to the bucket for shovel machines according to 1 or 2 . The bucket for shovel machines provided with the tooth board of any one of Claim 1 thru | or 3 characterized by the above-mentioned.

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