CA1267862A - Lagging-reinforced structure - Google Patents
Lagging-reinforced structureInfo
- Publication number
- CA1267862A CA1267862A CA000505992A CA505992A CA1267862A CA 1267862 A CA1267862 A CA 1267862A CA 000505992 A CA000505992 A CA 000505992A CA 505992 A CA505992 A CA 505992A CA 1267862 A CA1267862 A CA 1267862A
- Authority
- CA
- Canada
- Prior art keywords
- lagging
- laggings
- lining layer
- reinforced structure
- lining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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- Belt Conveyors (AREA)
Abstract
Abstract The present invention discloses a lagging-reinforced structure which comprises a substrate, a lining layer of a flexible and resilient material coated on the upper surface of the substrate, a plurality of laggings embedded in the lining, the laggings having an anchoring portion at the embedded end thereof, and the laggings made of a material of high hardness and high wear resistance. Due to such construction, the peeling-off of the lagging from the lining layer can be effectively prevented.
Description
~ ~ ~ 7 8 ~
This invention relates to a structure which is rein-forced by the laggings of high wear-resistanceO
Conventionally, for preventing the wear of the surface of the conveyor belt or the pulley, or the inner surface of the hopper receiving the ores or gravels, the laggings having high hardness and wear resistance are attached to or embedded in these substrates.
However, the effective area of laggings for wear resis-tance is considerably small relative to the total area of the surface of the substrate, although the laggings occupy the con-siderable space in the substrates.
Furthermore, such laggings tend to be easily peeled off from the surface of the substrate.
Accordingly, the present invention provides a lagglng-reinforced structure where the laggings have sufficient effective wear-resistance area relative to the total surface of the sub-strate and can considerably prolong the life o~ the structure by minimizing the wear of the structures.
The present invention also provldes a lagging-rein-forced structure where the laggings are firmly secured to thestructure so that the peeling-off of the laggings can be effec--tively prevented.
According to the present invention there is provided a lagging-reinforced structure comprising a substrate, a lining layer coated on ~he;upper surface of said substrate, said linirl9 layer being made of a flexible resilient material, and a plural-ity of laggings embedded in said lining layer, said laggings hav-ing an anchoring portion at the embedded end thereof, said lag-gings being made of a material of high hardness and high wearresistance, said anchoring portion being provided Nith at least a 1 ~ ~ 7 ~ 6~
recess into which a portion of said lining layer is engaged, whereby the removal of said laggings from said llning layer is prevented by the engagement of said portion of said lining layer with the recess of said anchoring portion. Suitably said linlng layer is a rubber. Desirahly said material for said laggings is ceramic. Suitably said lagging has an elongated bar-llke shape or a tile~like shape.
The present invention will be further illustrated by way of the accompanying drawings, in which:-Fig. 1 is a schematic view of the belt conveyor whichdemonstrates one of the lagging-reinforced structures of the pre-sent invention;
Fig. 2 is an enlarged explanatory view of the front portion of the belt conveyor;
Fig. 3 is a plan view of the belt conveyor observed in arrow direction I-I in Fig. 2;
Lt~
Fig.s 4a to ~ are cross-sectional views of the lagging taken along II-II of Fig. 3;
~ Fig. 4~ ls ~ cross-sectional view taken along the line ffl -III of the Fig- 4i~
Fig. 5 is a~o~s~sectional view of the belt conveyor taken along the line T~lv of Fig. 3 showing the lateral end of the laggings; ~
Fig. 6 is an explanatory view showing the lagging in~a bent condition;
Fig. 7 is an explanatory view showing the lagging-reln-forced structure applled to the pulley of the belt conveyor;
~ 2 6 ~
Fig. 8 is an explanatory view showing the lagglng-rein-forced structure applied to the hopper of the belt conveyor;
Fig.s 9 and 10 are cross-sectional views of the lag~
ging-reinforced struc-tured where the lagging ha~ the upper sur-face of the laggings on the same plane or below the surface o~
the lining layer, Fig. ll is a plan view of the lagging-reinforced-structure :
- 2a -~' ~L2 ~j7 8 6~
which is provided w;th a tile-like laggings.
Fig. 12 is a cross-sectional view of the above lagging-reinforced structure o taken along the line V-V of Fig. 11.
Fig. 13 and Fig. 14 are plan and side view of the above tile-like lag~ing.
Fig. 15 and 16 are plan and side views of the tile-like laggings applicable to the above reinforced structure o-E Fig. 11.
Fig. 17 and 18 are plan views of other tile-like lag~inngs, Fig. 19 and Fig. 20 are schematic views of another lagging-reinforced structllre where the surface of the substrate is completely covered by the flat plate-like laggings.
The lagging-reinforced structure of the present invention is hereinafter disclosed in conjunction with attached drawings.
In Fig. 1, A indicates a belt conveyor which comprises an endless conveyor belt 1 which, in turn, is extended between and wound around a drive pulley 2 and a driven pulley 3.
For preventing the slacking of the endless conveyor belt 2, a plurality of ~uide rollers la are disposed between the drive pulley 2 and the driven pulley 3 and support khe endless conveyor belt l.
Above one end of the endless belt 2, a hopper 4 for feeding the material B to be transfered such as gravels or ores onto the endless conveyor belt 1 is disposed.
In the above belt conveyor A, the conveyor belt 1 comprises a substrate 5 ( Fig. ~a to ~ig. 4i ) which is made of a textile having high tensile strength and flex;bilty such as niron textile or glass fiber textile or carbon fiber tex~ile.
3L2 ~ 7 8 6~
Furthermore,such substrate 5 can be made of a plurality of cords extending in the same direction as the running direction of the conveyor belt 1 and fixedly secured to each other in a transverse direction.
Such cord may be a fiber strip such as nyton or steel strip having a sufficient flexibility and tensile strength.
The upper surface of the substrate 5 is coated with a flat-plate-shaped lining layer 6 and such lining layer 6 i5 made of a flexible and resilient material such as rubber.
The lining layer 6 is preferahly conneceted to the substrate 5 by means of a suitable bonding agent.
In conveying the material B which may be gravels or ores, the upper surface la of the belt 1 and the inner surface 4a of the hopper 4 are subjected to the wear action of the material B, while the outer surface 2a of the drive pulley 2 is subiected to the wear action of the inner surface ofthe conveyor belt 1.
For preventing the above wear resistance, a plurality of laggings ~ are embedded in the outer surface lb of the conveyor belt 1 as shown in Fig. 2 and Fig. 3.
~ s shown in ~ig. 2 and Fig. 3, each lagging L is shaped like an elongated bar and these laegings L extend in a direction transverse to the running direction of the conveyor belt 1 with a suitable longitudinal gap 7 in the running direc-tion of the conveyor belt 3.
I,aggings IJ may be produced by a bar made of an extremely high and wear-resistallt material such as ceramics.
Such ceramic-made laggings L are producec~, for exampLe, in such a manner that 80 to 90 % by weight of alumina powder having a particle size of less than 10 ~ m is mixed with 20 to 10 % by weight of a bonding agent mainly composed of siliGa powder to provide a raw material mixture and such mixture is compacted in an elongated-bar-like shape and the compact is sintered under a conventional sintering condition.
The laggings L can take any cross section provided -that -the laggin~s L has an anchoring portion at the embedded end thereof.
In Fig. 4a, the cross-section of the lagging L is of an approximately laid-H-shape which comprise a vertical upright portion 8 and an upper and (ower hori%ontal portion 9, 1~ which are integrally connected to the upper and lower ends of the vertical portion 8.
Lagging L is almost totally embedded in the lining layer 6 with the exception of the upper horizontal portion 9 and the surface of the upper horizontal portion 9 slightly protrudes from the upper surface of the lining layer 6 so as to protect the wear of the surface of the conveyor belt 1.
Furthermore, the lagging L forms a pair of rectangular-shaped lateral recesses 1;1,12 on the both sides of the vertical por-tion 8 of the lagging L.
In the above construction, the lagging L is almost completely embedded in the lining layer 6 and the lower horizontal portion 10 which is embedded in the deep portion of the linging layer 6 works as an anchoring means so that the removal of the laggin~s L can be prevented.
Furthermore, since the port;ons of the lining layer 6 intrudes into the lateral recesses 11,12 provided a-t both lateraI sides of the vertical upright portion 9 of the lagging L, the uniting force bet~een the lagging L, and the lining layer 6 is enhanced so that the removal of the laggings L is further efFectively prevented.
Still furthermore, since the upper horizontal portion 9 of the 78~
laggings L has a considerable width and the gap between the opposed lateral edges of the neighboring laggin~s is narrow, the conveyor belt 1 can assure a sufficient area for wear resis-tance.
In Fig. 4b, the lagging 1, has a C-shapecl cross section and an anchoring means is provided at the lower horizon-tal portion 13 of the lagging L.
In Fig. ~c, the lagging L is provided with a T-shaped cross-section and a vertical portion 14 is provided with a plurality of corrugated recesses 15, 16 on both sides thereof.
In Fig. ~d, the lagging L is provided with a T-shaped cross-section and a vertical portion 17 ;s provided with a pluralityof serrated recesses 18, 19 on both sides thereof.
In Fig. 4e, the lagging L has a cross section which comprises a circular portion 20 which has a top round portion slightly protruding from the upper surface of the lining 6 and a lower horizontal portion 21 integrally connected to the circular portion by way of a vertical leg portion 22.
In Fig. 4f, the lagging L has a cross sec-tion constituted by a combination of an upper portion 23 of a flat rectangular shape and a lower portion 24 of a dove-tall shape which works as an anchor.
In ~ig. ~g, the lagging L has a cross section constituted by a combination of an upper portion 25 of a fIat rectangular shape and a lower portion 2~ of a hollow ring-like shape which works as the anchor.
Since the lower portion 26 is provided with a circular space 27 in which the lining material is fed, the integrity of the lagging L with the lining 5 is further enhanced.
In F;g. 4h, the lagging 1J has a cross section of a T shape with a short lower horizontal leg 2~ which works as g~ i7~3 an anchor.
In Fig. 4; and Fig. ~j, each lagging L has a circular cross sect;on 29 and these laggings L are connected each other by means of a plural;ty of flexible bars 29b which works as an anchor.
~ lthough some of the preferable cross sections of the laggings are described in Fi~. 4a to Ai, the cross-sectional view of the laggings L can be varied depending on the use of the lagging-reinforced structure.
In Fig. 5 and Fig. 6, the left and right lateral sides of the conveyor belt 1 can be deflected upwardly so as to prevent the lateral overflow of the material from the conveyor belt 3.
Namely, each la~ging I, is provided with vertical slit 30 which extends upwardly fro~ the lower surface of the conveyor belt 1 so as to deflect the belt 3 in the above manner.
Fig. 7 shows an embodiment where the lagging-reinforced structure of the present inYention is applied to the outer surface 31 of the drive pulley 2, wherein the outeF surface 31 is provided with a plurality of the laggings L having the cross-section of F;g. 4a.
~ ig. 8 shows an embodiment where the lagging-reinforced structure o~ the present lnvention is a~plied to the inner surface Aa of the hopper A, wherein the inner surface Aa is provided with a plurality of the laggings ~ shown in Fig. Aa.
nlthough, in the above construction, it is preferable that the upper surface of the laggings L protrudes slightly from the surface of the lining layer 6, the upper s~rface of the lagging L may be on the same plane or below the upper surface of the lining layer ~ as~shown in ~ig. 9 and Fî~ 1~ in view of the lowering of 'he production cost of the conveyo~ belt l or other ~L~ 36 lagging- reinforced s-tructure.
Fig. 11 shows a lagging-reinforced structure where a plurality of tile-like laggings L are embedcled into the lining 6 of the conveyor helt 1.
As shown in Fig. 12 to Fig 14, the Lagging L comprises a flat square plate 40 and a hollow circular anchoring portion 41 which is fixedly secured to the lower surface oP the lining layer 6.
Since the anchoring por-tion 41 has a hollow space 42 therein where the lining material intrudes during the lining forming process, the peeling of the tile-like lagg;ngs L ca~ be effectively prevented.
Since such tile-like laggings L can form gaps 7 not only in a longitudinal direction but also in a lateral direction, the flexibility of the lagging L relative to the lining layer 5 is enhanced so that the lagging L is not ruptured even when an unexpected load is applied to the laggings L.
Fi~. 15 and Fig. 16 show -the tile-like lagging L which comprises an upper and lower square plate portions ~5. 46 and a vertical strut portion 47 which connects the square plate portions 45, 46. In the above const,ruction, the lower square portion 46 works as the anchoring means for preventing of the peeling-off of the tile-like laggings L.
Fig. 17 and Fig. 18 show some of the preferable sh.,tpe of tile-like laggings L, where the lagging L has a circular cross section and the hexagonal cross section.
Fig. 19 is a schematic view of another laeging-reinforced- ~ ;
structure where the lining layer 6 is completely covered by the laggings L, wherein in Fig. 17, the lagging L has a T-shaPed cross section and an ctnchoring portion is formed by integrally attaching the horizontal~ leg SO to the lo,/er end of the vertical ;t~36.c~
portion of the T-shape.
In Fig. 20, the laggings ~ are connected with a connecting means 60.
Furthermore, the shock-resistance of the lagglng L can be improved by choosing a desired material.
According to this invention, since the recess or recesses is~are formed on both lateral side of the embedderl portion of the lagg;ng, the effective area for preventing the wear relative to the mass of the lagging can be increased and the peeling-off of the lagging can be prevented.
~ lthough not shown in the attached drawings the lagging-reinforced structure of the present lnvention can be apPIiecl to any surface of the structure where the prevention of the wear is necessary.
This invention relates to a structure which is rein-forced by the laggings of high wear-resistanceO
Conventionally, for preventing the wear of the surface of the conveyor belt or the pulley, or the inner surface of the hopper receiving the ores or gravels, the laggings having high hardness and wear resistance are attached to or embedded in these substrates.
However, the effective area of laggings for wear resis-tance is considerably small relative to the total area of the surface of the substrate, although the laggings occupy the con-siderable space in the substrates.
Furthermore, such laggings tend to be easily peeled off from the surface of the substrate.
Accordingly, the present invention provides a lagglng-reinforced structure where the laggings have sufficient effective wear-resistance area relative to the total surface of the sub-strate and can considerably prolong the life o~ the structure by minimizing the wear of the structures.
The present invention also provldes a lagging-rein-forced structure where the laggings are firmly secured to thestructure so that the peeling-off of the laggings can be effec--tively prevented.
According to the present invention there is provided a lagging-reinforced structure comprising a substrate, a lining layer coated on ~he;upper surface of said substrate, said linirl9 layer being made of a flexible resilient material, and a plural-ity of laggings embedded in said lining layer, said laggings hav-ing an anchoring portion at the embedded end thereof, said lag-gings being made of a material of high hardness and high wearresistance, said anchoring portion being provided Nith at least a 1 ~ ~ 7 ~ 6~
recess into which a portion of said lining layer is engaged, whereby the removal of said laggings from said llning layer is prevented by the engagement of said portion of said lining layer with the recess of said anchoring portion. Suitably said linlng layer is a rubber. Desirahly said material for said laggings is ceramic. Suitably said lagging has an elongated bar-llke shape or a tile~like shape.
The present invention will be further illustrated by way of the accompanying drawings, in which:-Fig. 1 is a schematic view of the belt conveyor whichdemonstrates one of the lagging-reinforced structures of the pre-sent invention;
Fig. 2 is an enlarged explanatory view of the front portion of the belt conveyor;
Fig. 3 is a plan view of the belt conveyor observed in arrow direction I-I in Fig. 2;
Lt~
Fig.s 4a to ~ are cross-sectional views of the lagging taken along II-II of Fig. 3;
~ Fig. 4~ ls ~ cross-sectional view taken along the line ffl -III of the Fig- 4i~
Fig. 5 is a~o~s~sectional view of the belt conveyor taken along the line T~lv of Fig. 3 showing the lateral end of the laggings; ~
Fig. 6 is an explanatory view showing the lagging in~a bent condition;
Fig. 7 is an explanatory view showing the lagging-reln-forced structure applled to the pulley of the belt conveyor;
~ 2 6 ~
Fig. 8 is an explanatory view showing the lagglng-rein-forced structure applied to the hopper of the belt conveyor;
Fig.s 9 and 10 are cross-sectional views of the lag~
ging-reinforced struc-tured where the lagging ha~ the upper sur-face of the laggings on the same plane or below the surface o~
the lining layer, Fig. ll is a plan view of the lagging-reinforced-structure :
- 2a -~' ~L2 ~j7 8 6~
which is provided w;th a tile-like laggings.
Fig. 12 is a cross-sectional view of the above lagging-reinforced structure o taken along the line V-V of Fig. 11.
Fig. 13 and Fig. 14 are plan and side view of the above tile-like lag~ing.
Fig. 15 and 16 are plan and side views of the tile-like laggings applicable to the above reinforced structure o-E Fig. 11.
Fig. 17 and 18 are plan views of other tile-like lag~inngs, Fig. 19 and Fig. 20 are schematic views of another lagging-reinforced structllre where the surface of the substrate is completely covered by the flat plate-like laggings.
The lagging-reinforced structure of the present invention is hereinafter disclosed in conjunction with attached drawings.
In Fig. 1, A indicates a belt conveyor which comprises an endless conveyor belt 1 which, in turn, is extended between and wound around a drive pulley 2 and a driven pulley 3.
For preventing the slacking of the endless conveyor belt 2, a plurality of ~uide rollers la are disposed between the drive pulley 2 and the driven pulley 3 and support khe endless conveyor belt l.
Above one end of the endless belt 2, a hopper 4 for feeding the material B to be transfered such as gravels or ores onto the endless conveyor belt 1 is disposed.
In the above belt conveyor A, the conveyor belt 1 comprises a substrate 5 ( Fig. ~a to ~ig. 4i ) which is made of a textile having high tensile strength and flex;bilty such as niron textile or glass fiber textile or carbon fiber tex~ile.
3L2 ~ 7 8 6~
Furthermore,such substrate 5 can be made of a plurality of cords extending in the same direction as the running direction of the conveyor belt 1 and fixedly secured to each other in a transverse direction.
Such cord may be a fiber strip such as nyton or steel strip having a sufficient flexibility and tensile strength.
The upper surface of the substrate 5 is coated with a flat-plate-shaped lining layer 6 and such lining layer 6 i5 made of a flexible and resilient material such as rubber.
The lining layer 6 is preferahly conneceted to the substrate 5 by means of a suitable bonding agent.
In conveying the material B which may be gravels or ores, the upper surface la of the belt 1 and the inner surface 4a of the hopper 4 are subjected to the wear action of the material B, while the outer surface 2a of the drive pulley 2 is subiected to the wear action of the inner surface ofthe conveyor belt 1.
For preventing the above wear resistance, a plurality of laggings ~ are embedded in the outer surface lb of the conveyor belt 1 as shown in Fig. 2 and Fig. 3.
~ s shown in ~ig. 2 and Fig. 3, each lagging L is shaped like an elongated bar and these laegings L extend in a direction transverse to the running direction of the conveyor belt 1 with a suitable longitudinal gap 7 in the running direc-tion of the conveyor belt 3.
I,aggings IJ may be produced by a bar made of an extremely high and wear-resistallt material such as ceramics.
Such ceramic-made laggings L are producec~, for exampLe, in such a manner that 80 to 90 % by weight of alumina powder having a particle size of less than 10 ~ m is mixed with 20 to 10 % by weight of a bonding agent mainly composed of siliGa powder to provide a raw material mixture and such mixture is compacted in an elongated-bar-like shape and the compact is sintered under a conventional sintering condition.
The laggings L can take any cross section provided -that -the laggin~s L has an anchoring portion at the embedded end thereof.
In Fig. 4a, the cross-section of the lagging L is of an approximately laid-H-shape which comprise a vertical upright portion 8 and an upper and (ower hori%ontal portion 9, 1~ which are integrally connected to the upper and lower ends of the vertical portion 8.
Lagging L is almost totally embedded in the lining layer 6 with the exception of the upper horizontal portion 9 and the surface of the upper horizontal portion 9 slightly protrudes from the upper surface of the lining layer 6 so as to protect the wear of the surface of the conveyor belt 1.
Furthermore, the lagging L forms a pair of rectangular-shaped lateral recesses 1;1,12 on the both sides of the vertical por-tion 8 of the lagging L.
In the above construction, the lagging L is almost completely embedded in the lining layer 6 and the lower horizontal portion 10 which is embedded in the deep portion of the linging layer 6 works as an anchoring means so that the removal of the laggin~s L can be prevented.
Furthermore, since the port;ons of the lining layer 6 intrudes into the lateral recesses 11,12 provided a-t both lateraI sides of the vertical upright portion 9 of the lagging L, the uniting force bet~een the lagging L, and the lining layer 6 is enhanced so that the removal of the laggings L is further efFectively prevented.
Still furthermore, since the upper horizontal portion 9 of the 78~
laggings L has a considerable width and the gap between the opposed lateral edges of the neighboring laggin~s is narrow, the conveyor belt 1 can assure a sufficient area for wear resis-tance.
In Fig. 4b, the lagging 1, has a C-shapecl cross section and an anchoring means is provided at the lower horizon-tal portion 13 of the lagging L.
In Fig. ~c, the lagging L is provided with a T-shaped cross-section and a vertical portion 14 is provided with a plurality of corrugated recesses 15, 16 on both sides thereof.
In Fig. ~d, the lagging L is provided with a T-shaped cross-section and a vertical portion 17 ;s provided with a pluralityof serrated recesses 18, 19 on both sides thereof.
In Fig. 4e, the lagging L has a cross section which comprises a circular portion 20 which has a top round portion slightly protruding from the upper surface of the lining 6 and a lower horizontal portion 21 integrally connected to the circular portion by way of a vertical leg portion 22.
In Fig. 4f, the lagging L has a cross sec-tion constituted by a combination of an upper portion 23 of a flat rectangular shape and a lower portion 24 of a dove-tall shape which works as an anchor.
In ~ig. ~g, the lagging L has a cross section constituted by a combination of an upper portion 25 of a fIat rectangular shape and a lower portion 2~ of a hollow ring-like shape which works as the anchor.
Since the lower portion 26 is provided with a circular space 27 in which the lining material is fed, the integrity of the lagging L with the lining 5 is further enhanced.
In F;g. 4h, the lagging 1J has a cross section of a T shape with a short lower horizontal leg 2~ which works as g~ i7~3 an anchor.
In Fig. 4; and Fig. ~j, each lagging L has a circular cross sect;on 29 and these laggings L are connected each other by means of a plural;ty of flexible bars 29b which works as an anchor.
~ lthough some of the preferable cross sections of the laggings are described in Fi~. 4a to Ai, the cross-sectional view of the laggings L can be varied depending on the use of the lagging-reinforced structure.
In Fig. 5 and Fig. 6, the left and right lateral sides of the conveyor belt 1 can be deflected upwardly so as to prevent the lateral overflow of the material from the conveyor belt 3.
Namely, each la~ging I, is provided with vertical slit 30 which extends upwardly fro~ the lower surface of the conveyor belt 1 so as to deflect the belt 3 in the above manner.
Fig. 7 shows an embodiment where the lagging-reinforced structure of the present inYention is applied to the outer surface 31 of the drive pulley 2, wherein the outeF surface 31 is provided with a plurality of the laggings L having the cross-section of F;g. 4a.
~ ig. 8 shows an embodiment where the lagging-reinforced structure o~ the present lnvention is a~plied to the inner surface Aa of the hopper A, wherein the inner surface Aa is provided with a plurality of the laggings ~ shown in Fig. Aa.
nlthough, in the above construction, it is preferable that the upper surface of the laggings L protrudes slightly from the surface of the lining layer 6, the upper s~rface of the lagging L may be on the same plane or below the upper surface of the lining layer ~ as~shown in ~ig. 9 and Fî~ 1~ in view of the lowering of 'he production cost of the conveyo~ belt l or other ~L~ 36 lagging- reinforced s-tructure.
Fig. 11 shows a lagging-reinforced structure where a plurality of tile-like laggings L are embedcled into the lining 6 of the conveyor helt 1.
As shown in Fig. 12 to Fig 14, the Lagging L comprises a flat square plate 40 and a hollow circular anchoring portion 41 which is fixedly secured to the lower surface oP the lining layer 6.
Since the anchoring por-tion 41 has a hollow space 42 therein where the lining material intrudes during the lining forming process, the peeling of the tile-like lagg;ngs L ca~ be effectively prevented.
Since such tile-like laggings L can form gaps 7 not only in a longitudinal direction but also in a lateral direction, the flexibility of the lagging L relative to the lining layer 5 is enhanced so that the lagging L is not ruptured even when an unexpected load is applied to the laggings L.
Fi~. 15 and Fig. 16 show -the tile-like lagging L which comprises an upper and lower square plate portions ~5. 46 and a vertical strut portion 47 which connects the square plate portions 45, 46. In the above const,ruction, the lower square portion 46 works as the anchoring means for preventing of the peeling-off of the tile-like laggings L.
Fig. 17 and Fig. 18 show some of the preferable sh.,tpe of tile-like laggings L, where the lagging L has a circular cross section and the hexagonal cross section.
Fig. 19 is a schematic view of another laeging-reinforced- ~ ;
structure where the lining layer 6 is completely covered by the laggings L, wherein in Fig. 17, the lagging L has a T-shaPed cross section and an ctnchoring portion is formed by integrally attaching the horizontal~ leg SO to the lo,/er end of the vertical ;t~36.c~
portion of the T-shape.
In Fig. 20, the laggings ~ are connected with a connecting means 60.
Furthermore, the shock-resistance of the lagglng L can be improved by choosing a desired material.
According to this invention, since the recess or recesses is~are formed on both lateral side of the embedderl portion of the lagg;ng, the effective area for preventing the wear relative to the mass of the lagging can be increased and the peeling-off of the lagging can be prevented.
~ lthough not shown in the attached drawings the lagging-reinforced structure of the present lnvention can be apPIiecl to any surface of the structure where the prevention of the wear is necessary.
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A lagging-reinforced structure comprising a sub-strate, a lining layer coated on the upper surface of said sub-strate, said lining layer being made of a flexible resilient material, and a plurality of laggings embedded in said lining layer, said laggings having an anchoring portion at the embedded end thereof, said laggings being made of a material of high hard-ness and high wear resistance, said anchoring portion being pro-vided with at least a recess into which a portion of said lining layer is engaged, whereby the removal of said laggings from said lining layer is prevented by the engagement of said portion of said lining layer with the recess of said anchoring portion.
2. A lagging-reinforced structure according to claim 1, wherein said lining layer is a rubber.
3. A lagging-reinforced structure according to claim 1, wherein said material for said laggings is ceramic.
4. A lagging-reinforced structure according to claim 1, wherein said lagging has an elongated-bar-like shape.
5. A lagging-reinforced structure according to claim 1, wherein said lagging has a tile-like shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000505992A CA1267862A (en) | 1986-04-07 | 1986-04-07 | Lagging-reinforced structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000505992A CA1267862A (en) | 1986-04-07 | 1986-04-07 | Lagging-reinforced structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1267862A true CA1267862A (en) | 1990-04-17 |
Family
ID=4132819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000505992A Expired CA1267862A (en) | 1986-04-07 | 1986-04-07 | Lagging-reinforced structure |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1267862A (en) |
-
1986
- 1986-04-07 CA CA000505992A patent/CA1267862A/en not_active Expired
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