JPH02276708A - Return roller - Google Patents

Return roller

Info

Publication number
JPH02276708A
JPH02276708A JP9606189A JP9606189A JPH02276708A JP H02276708 A JPH02276708 A JP H02276708A JP 9606189 A JP9606189 A JP 9606189A JP 9606189 A JP9606189 A JP 9606189A JP H02276708 A JPH02276708 A JP H02276708A
Authority
JP
Japan
Prior art keywords
return roller
roller
ring
ceramic members
conveyor belt
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.)
Granted
Application number
JP9606189A
Other languages
Japanese (ja)
Other versions
JP2753033B2 (en
Inventor
Hiroichi Sakano
坂野 博一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TAIYO PLAST KOGYOSHO KK
Original Assignee
TAIYO PLAST KOGYOSHO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TAIYO PLAST KOGYOSHO KK filed Critical TAIYO PLAST KOGYOSHO KK
Priority to JP1096061A priority Critical patent/JP2753033B2/en
Publication of JPH02276708A publication Critical patent/JPH02276708A/en
Application granted granted Critical
Publication of JP2753033B2 publication Critical patent/JP2753033B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Rollers For Roller Conveyors For Transfer (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

PURPOSE:To improve the abrasion resistance and heat resistance of a belt contacting part of a resin-made return roller by embedding a ring-shaped retaining member in the outer circumferential part of the return roller, and by fitting a plurality of circular ceramic members to be in contact with a belt conveyor. CONSTITUTION:A roller body 12 made of resin such as nylon is made up of an outer ring part 16, an inner ring part 14, connecting parts 18, and reinforcement ribs 20, 30. And, a plurality of circular ceramic members 22 are embedded along the outer circumference of the outer ring part 16 so that a part thereof can be projected from the outer circumferential surface, to form the conveyor- belt contacting part. And, the ceramic members 22 are retained by embedding a ring-shaped retaining ring 26 of L-shaped section made of resin such as nylon or the like in the radially inner part than the ceramic members 22, and by engaging projections 28 with the ceramic members 22. By this constitution, the abrasion resistance and heat resistance in the contacting part of a belt conveyor can be improved.

Description

【発明の詳細な説明】 (技術分野) 本発明は、樹脂製のリターンローラにおいて、そのコン
ベヤベルトに接する外周部位をセラミックスにて形成し
てなる、耐摩耗性に優れたリターンローラに関するもの
である。
[Detailed Description of the Invention] (Technical Field) The present invention relates to a return roller made of resin, the outer peripheral portion of which comes into contact with a conveyor belt is made of ceramic, and has excellent wear resistance. .

(背景技術) 一般に、コンベヤベルトにて所定の被搬送物、例えば鉱
石等を搬送するようにした搬送装置にあっては、該被搬
送物が載置されたコンベヤベルト部分を支持するキャリ
ヤローラに対して、その下方に配室され、被搬送物の載
置されていないコンベヤベルト部分を支持するためのリ
ターンローラが設けられている。
(Background Art) In general, in a conveyor belt that conveys a predetermined object, such as ore, etc., a carrier roller that supports a portion of the conveyor belt on which the object is placed is On the other hand, a return roller is provided below the conveyor belt to support the portion of the conveyor belt on which the conveyed object is not placed.

ところで、かかるリターンローラを含むリターンローラ
装置としては、その重量や回転抵抗等の性能が、コンベ
ヤの運行、ベルトの耐久性及び必要駆動馬力等に密接に
関与し、その操業費、更には生産コストに重大な影響を
及ぼすところから、本願出願人は、先に、特開昭62−
164230号として、該リターンローラ装置を軽量で
安価とし、そのハンドリング性を向上せしめると共に、
幅の広いコンベヤベルトを支持する場合にも、ベルトに
付着した粉粒体等の被搬送物の落下が軽減され、且つコ
ンベヤベルトの蛇行を防止し得るリターンローラ装置を
提案した。
By the way, the performance of a return roller device including such a return roller, such as its weight and rotational resistance, is closely related to the operation of the conveyor, the durability of the belt, the required drive horsepower, etc., and the operating cost and furthermore the production cost. Because of the serious impact on the
No. 164230, the return roller device is made lightweight and inexpensive, and its handling property is improved.
Even when supporting a wide conveyor belt, we have proposed a return roller device that can reduce the falling of conveyed objects such as powder particles attached to the belt and can prevent the conveyor belt from meandering.

すなわち、該公報に開示されたリターンローラ装置は、
(a)コンベヤベルトの幅方向の両端部にそれぞれ同心
的に支持された二つの相対向する軸部材と、(b)該二
つの軸部材が両端部に貫装せしめられ且つ着脱可能に取
り付けられた、それら軸部材を連結する内筒部材と、(
C)前記二つの軸部材にそれぞれ回転可能に取り付けら
れた、所定外径の支持ローラと、(d)前記内筒部材の
径方向外側に所定距離を隔てて同心的に配置せしめられ
、該支持ローラと共に回転可能とされた外筒部材と、(
e)該外筒部材の所定位置にそれぞれ取り付けられ、該
外筒部材と一体的に回転せしめられる、外周面に半円形
状乃至は円弧形状の硬質ウレタン製凸部を有する、前記
コンベヤベルトを支持するための幅の狭い複数個のリタ
ーンローラとを含んでなる構成とされている。
That is, the return roller device disclosed in the publication is as follows:
(a) two opposing shaft members supported concentrically at both ends of the conveyor belt in the width direction, and (b) the two shaft members penetrating both ends and removably attached. In addition, an inner cylinder member that connects these shaft members, (
C) a support roller having a predetermined outer diameter and rotatably attached to each of the two shaft members; (d) a support roller disposed concentrically at a predetermined distance on the outside of the inner cylinder member in the radial direction; An outer cylindrical member rotatable together with the roller, (
e) supporting the conveyor belt, which has semicircular or arcuate hard urethane protrusions on the outer peripheral surface that are attached to predetermined positions of the outer cylinder member and rotate integrally with the outer cylinder member; The structure includes a plurality of narrow return rollers for the purpose of carrying out the operation.

しかしながら、かかるリターンローラ装置におけるリタ
ーンローラにあっては、その外周面が硬質ウレタンにて
形成され、該硬質ウレタン部分がコンベヤベルトに当接
されることとなるところから、かかるコンベヤベルト面
に付着せる粉粒体等にて擦過せしめられるために、たと
え耐摩耗性のある硬質ウレタンを用いても、そのベルト
への当接面に摩耗が惹起されることは避は難く、またウ
レタンの耐熱性は高々100°C程度であるところから
、ベルト等から加わる熱によって、硬質ウレタン部位が
変形や変質を来す問題もあり、それによってベルトの有
効な支持が困難となり、その耐久性に問題があったので
ある。
However, in the return roller of such a return roller device, its outer peripheral surface is formed of hard urethane, and since the hard urethane portion comes into contact with the conveyor belt, it is difficult to adhere to the surface of the conveyor belt. Even if abrasion-resistant hard urethane is used, it is inevitable that the surface in contact with the belt will be abraded, and the heat resistance of urethane is Since the temperature is approximately 100°C at most, there is a problem that the hard urethane parts may be deformed or deteriorated by the heat applied from the belt etc. This makes it difficult to support the belt effectively and there is a problem with its durability. It is.

(解決課題) ここにおいて、本発明は、上記の如き事情を背景にして
為されたものであって、その解決すべき課題とするとこ
ろは、コンベヤベルトに当接せしめられる外周面が、耐
摩耗性に優れると共に、良好な耐熱性をも有するリター
ンローラを提供することにある。
(Problem to be solved) Here, the present invention has been made against the background of the above-mentioned circumstances, and the problem to be solved is that the outer circumferential surface that is brought into contact with the conveyor belt is resistant to wear. It is an object of the present invention to provide a return roller which has excellent properties and also has good heat resistance.

(解決手段) そして、本発明は、かかる課題解決のために、コンベヤ
ベルトにて所定の被搬送物を搬送するようにした搬送装
置における、該被搬送物の載置されていないコンベヤベ
ルト部分を支持するための樹脂製のリターンローラにお
いて、該リターンローラの外周側部位に位置するように
埋設されたリング状の保持部材と、該保持部材に係止さ
れて、該リターンローラの外周部に沿って円形に配列せ
しめられた、リターンローラ外周面に露呈されて前記コ
ンベヤベルト部分に接する、複数の円弧状のセラミック
ス部材とを有するようにしたのである。
(Solution Means) In order to solve this problem, the present invention provides a conveyor belt portion of a conveyor belt on which a predetermined object is not placed, in a conveyor belt that conveys a predetermined object. In a resin-made return roller for supporting, there is a ring-shaped holding member buried so as to be located on the outer circumferential side of the return roller, and a ring-shaped holding member that is latched to the holding member and extends along the outer circumference of the return roller. The conveyor belt includes a plurality of arc-shaped ceramic members arranged in a circular manner, exposed on the outer circumferential surface of the return roller and in contact with the conveyor belt portion.

(実施例) 以下に、本発明を更に具体的に明らかにするために、本
発明の一実施例を、図面を参照しつつ、詳細に説明する
こととする。
(Example) In order to clarify the present invention more specifically, an example of the present invention will be described in detail below with reference to the drawings.

先ず、第1図(a)〜(C)には、本発明の一実施例に
係るリターンローラを説明する図が示されており、(a
)はリターンローラの正面半裁図、(b)は(a)にお
けるA−A断面図、(c)は背面半裁図を、それぞれ示
すものである。
First, FIGS. 1(a) to 1(C) are diagrams illustrating a return roller according to an embodiment of the present invention, and (a)
) shows a front half-cut view of the return roller, (b) shows a sectional view taken along line A-A in (a), and (c) shows a back half-cut view.

これらの図において、リターンローラ2は、所定大きさ
の内孔6を有する金属スリーブ4と、その径方向外側に
一体的に形成されるナイロン等の所定の合成樹脂材料か
らなるローラ本体12とから構成されている。
In these figures, the return roller 2 is made up of a metal sleeve 4 having an inner hole 6 of a predetermined size, and a roller body 12 made of a predetermined synthetic resin material such as nylon and integrally formed on the radially outer side of the metal sleeve 4. It is configured.

そして、このローラ本体12は、比較的幅の狭い外輪部
16と幅広の内輪部14及びそれらを連結する連結部1
8とから構成されており、更に該内輪部14から外輪部
16へ半径方向に延びる複数の補強リブ20(正面側)
、  30 (背面側)を有している。なお、かかる正
面側の補強リブ2゜と背面側の補強リブ30とは、円周
方向に所定角度ずれた位置において形成されている。
The roller main body 12 includes a relatively narrow outer ring part 16, a wide inner ring part 14, and a connecting part 1 that connects them.
8, and a plurality of reinforcing ribs 20 (front side) extending in the radial direction from the inner ring portion 14 to the outer ring portion 16.
, 30 (back side). The front reinforcing rib 2° and the back reinforcing rib 30 are formed at positions shifted by a predetermined angle in the circumferential direction.

また、該ローラ本体12には、外輪部16において、そ
の一部が外周面から突出する状態で、複数個の円弧状セ
ラミックス部材22が、該リターンローラ2の外周部に
沿って円形に配列するように埋設されている。そして、
このセラミックス部材22に係合し、それを保持する状
態において、断面がL字型のリング状保持部材26が、
セラミックス部材22よりも半径方向内側に埋設されて
いる。なお、本実施例にあっては、同形状を呈する12
個のセラミックス部材22が、保持部材26の円周方向
に配列されている。
Further, in the roller body 12, a plurality of arc-shaped ceramic members 22 are arranged in a circle along the outer circumferential portion of the return roller 2, with a portion of the ceramic members 22 protruding from the outer circumferential surface of the outer ring portion 16. It is buried like this. and,
In a state in which the ceramic member 22 is engaged with and held, the ring-shaped holding member 26 having an L-shaped cross section,
It is buried inside the ceramic member 22 in the radial direction. In addition, in this example, 12
The ceramic members 22 are arranged in the circumferential direction of the holding member 26.

ところで、かかるセラミックス部材22は、アルミナ、
ジルコニア、ムライト、コーディエライト、窒化ケイ素
等の耐摩耗性の良好なセラミックス材料からなり、第2
図(a)、(b)に示されるように、所定幅(厚さ)を
有すると共に、長手方向に円弧状を呈する頭部34と、
該頭部34より狭い幅にて、その円弧形状の内側に一体
的に形成される脚部36とから構成されている。そして
、その脚部36には、その円弧長手方向に配列するよう
に、幅方向に貫通する3つの孔24が形成されている。
By the way, the ceramic member 22 is made of alumina,
Made of ceramic materials with good wear resistance such as zirconia, mullite, cordierite, silicon nitride, etc.
As shown in FIGS. (a) and (b), a head 34 having a predetermined width (thickness) and having an arc shape in the longitudinal direction;
The leg portion 36 has a width narrower than the head portion 34 and is integrally formed inside the arcuate shape. Three holes 24 passing through the leg portion 36 in the width direction are formed in the leg portion 36 so as to be arranged in the longitudinal direction of the arc.

また、保持部材26は、ローラ本体12と同様に、ナイ
ロン等の合成樹脂材料からなり、第3図(a)、(b)
から明らかなように、断面がL字型を呈すると共に、リ
ターンローラ2の外輪部16内に位置し得る大きさのリ
ング状を呈し、その周方向の所定位置には、前記セラミ
ックス部材22に設けられた3つの孔のうち中央の孔2
4に係合し得るように、複数の突起28が軸方向に突設
されており、また、複数の補強リブ38が、該セラミッ
クス部材22の長手方向長さと同寸法の間隔をおいて形
成されている。
Further, the holding member 26 is made of a synthetic resin material such as nylon, like the roller main body 12, and is shown in FIGS. 3(a) and 3(b).
As is clear from the figure, it has an L-shaped cross section and a ring shape large enough to be positioned within the outer ring portion 16 of the return roller 2, and is provided at a predetermined position in the circumferential direction on the ceramic member 22. The center hole 2 of the three holes
A plurality of protrusions 28 are provided to protrude in the axial direction so as to be able to engage with the ceramic member 22, and a plurality of reinforcing ribs 38 are formed at intervals of the same dimension as the longitudinal length of the ceramic member 22. ing.

そして、上記の如き構造の複数(ここでは12個)のセ
ラミックス部材22が、保持部材26の隣接する補強リ
ブ38間にそれぞれ位置せしめられ、セラミックス部材
22の脚部36に設けられた中央の孔24に、保持部材
26の突起28が嵌入、係合せしめられることにより、
該リング状の保持部材26に対して固着された状態で、
後述のインサート成形法等により、ローラ本体12の外
輪部16内に一体的に埋設されることとなり、これによ
って、リターンローラ2の外周部がセラミックス部材2
2の頭部34の配列にて構成されることとなるのである
A plurality of (12 in this case) ceramic members 22 having the above-described structure are each positioned between adjacent reinforcing ribs 38 of the holding member 26, and are provided in a central hole provided in the leg portion 36 of the ceramic member 22. By fitting and engaging the protrusion 28 of the holding member 26 into 24,
While being fixed to the ring-shaped holding member 26,
By using the insert molding method described later, etc., the outer ring portion 16 of the roller body 12 is embedded integrally, and as a result, the outer peripheral portion of the return roller 2 is formed into the ceramic member 2.
In other words, it is composed of an arrangement of two heads 34.

なお、該ローラ本体12において、32は、後述するイ
ンサート成形法にてリターンローラ2を成形する際に、
保持部材26を支持するピンにて形成される孔である。
In addition, in the roller main body 12, 32 is used when molding the return roller 2 by the insert molding method described later.
This is a hole formed by a pin that supports the holding member 26.

そして、このような構成のリターンローラ2にあっては
、前記金属スリーブ4の内孔6において、従来と同様に
、所定の外筒部材(外管)の外周面に嵌挿されて、図示
しないが、該金属スリーブ4に設けられたネジ孔に、そ
れに対応してローラ本体12の内輪部14に設けられた
貫通孔を介して、所定の固定ネジが螺合されることによ
り、かかる外筒部材上の所定位置に固定されることとな
り、それによって該リターンローラ2が外筒部材と共に
回転し、コンベヤベルトを支持せしめるのである。なお
、リターンローラ2を回転せしめるリターンローラ装置
に関しては、先に提案の装置を含む従来から公知のもの
が何れも用いられる。
In the return roller 2 having such a configuration, the inner hole 6 of the metal sleeve 4 is fitted into the outer circumferential surface of a predetermined outer cylinder member (outer tube), as in the conventional case, and a However, by screwing a predetermined fixing screw into a screw hole provided in the metal sleeve 4 through a corresponding through hole provided in the inner ring portion 14 of the roller body 12, the outer cylinder The return roller 2 is fixed at a predetermined position on the member, so that the return roller 2 rotates together with the outer cylinder member and supports the conveyor belt. As for the return roller device for rotating the return roller 2, any conventionally known device including the previously proposed device can be used.

ところで、上記の如きリターンローラ2を製造するには
、通常のインサート成形法が好適に採用され、例えば第
4図に示される如き成形装置40を用いて行なわれる。
By the way, in order to manufacture the return roller 2 as described above, a normal insert molding method is suitably adopted, and is carried out using, for example, a molding apparatus 40 as shown in FIG. 4.

即ち、かかる成形装置40において、同定盤42と可動
盤44との間に配置される金型46,48.50により
、目的とするリターンローラの外形を構成するキャビテ
ィ54が形成される。そして、該キャとティ54内にお
いては、その半径方向内側に、外周面に所定深さの凹溝
10が設けられた金属スリーブ4が配されると共に、前
記保持部材26が、その全周に亘って、突起28にて所
定個数(ここでは12個)のセラミックス部材22を係
止せしめた状態において、該金型46から突出される所
定の支持ビン52(ここでは4本)にて金属スリーブ4
と同心的に保持せしめられるのである。このような状態
下、スプルー56を介して、所定の合成樹脂材料が該キ
ャビティ54内に射出されることとなる。
That is, in this molding apparatus 40, the molds 46, 48, and 50 arranged between the identification plate 42 and the movable plate 44 form a cavity 54 that constitutes the outer shape of the intended return roller. Inside the can and tee 54, a metal sleeve 4 having a groove 10 of a predetermined depth on its outer circumferential surface is disposed on the inside in the radial direction, and the holding member 26 is disposed around the entire circumference of the metal sleeve 4. In a state in which a predetermined number (12 in this case) of ceramic members 22 are locked with the protrusions 28, the metal sleeve is held in place by predetermined support bins 52 (four in this case) protruding from the mold 46. 4
It is held concentrically. Under such conditions, a predetermined synthetic resin material is injected into the cavity 54 via the sprue 56.

従って、セラミックス部材22は、該成形時にもキャビ
ティ54内において良好に保持され、以て外周面にセラ
ミックス部材22の頭部上方が露呈した、目的とする形
状のリターンローラ2が有利に得られるのである。
Therefore, the ceramic member 22 is well held within the cavity 54 during the molding process, and a return roller 2 having the desired shape in which the upper part of the head of the ceramic member 22 is exposed on the outer peripheral surface can be advantageously obtained. be.

ところで、本実施例にあっては、第1図(a)のV−■
断面に相当する第5図に示されるように、セラミックス
部材22の脚部36に3つの孔24が設けられ、その中
央の孔は、係止される保持部材26の突起28と係合さ
れているが、他の2つの孔には、前記インサート成形時
にローラ本体を形成する所定の樹脂材料が流入すること
により、ローラ本体12と係合せしめられた状態となり
、更に、リターンローラ2の外周部を構成する複数のセ
ラミックス部材22は、保持部材26の隣接する補強リ
ブ38間に配されて、保持部材26に係止されることか
ら、該リターンローラ2の外周部において、隣接するセ
ラミックス部材22の間、即ち該補強リブ38に相当す
る間隙には、前記と同様に、所定の樹脂材料が流入する
こととなり、それによって、ローラ本体2の外周部を、
セラミックス部材22と共に構成しているのである。こ
のように、該セラミックス部材22の脚部36の二つの
孔24及び隣接するセラミックス部材22間の間隙内に
は、ローラ本体12を構成する所定の樹脂材料が充填さ
れているところから、該セラミックス部材22とローラ
本体12とがより強固に一体化せしめられ得るのである
By the way, in this embodiment, V-■ in FIG. 1(a)
As shown in FIG. 5, which corresponds to a cross section, three holes 24 are provided in the leg portion 36 of the ceramic member 22, and the central hole is engaged with the protrusion 28 of the holding member 26 to be locked. However, a predetermined resin material forming the roller body flows into the other two holes during the insert molding, so that they are engaged with the roller body 12, and furthermore, the outer peripheral part of the return roller 2 is engaged with the roller body 12. Since the plurality of ceramic members 22 constituting the return roller 2 are disposed between the adjacent reinforcing ribs 38 of the holding member 26 and are locked to the holding member 26, the adjacent ceramic members 22 are arranged on the outer periphery of the return roller 2. In the same manner as described above, a predetermined resin material flows into the gaps corresponding to the reinforcing ribs 38, thereby making the outer circumference of the roller body 2
It is constructed together with the ceramic member 22. In this way, since the two holes 24 of the leg portion 36 of the ceramic member 22 and the gap between the adjacent ceramic members 22 are filled with a predetermined resin material constituting the roller body 12, the ceramic The member 22 and the roller main body 12 can be more firmly integrated.

また、前記金属スリーブ4の外周面に凹溝10が設けら
れていることから、該金属スリーブ4と、その外周面上
に一体的に形成されるローラ本体12との密着性の向上
が、有利に図られ得るのである。
Furthermore, since the groove 10 is provided on the outer peripheral surface of the metal sleeve 4, it is advantageous to improve the adhesion between the metal sleeve 4 and the roller body 12 that is integrally formed on the outer peripheral surface of the metal sleeve 4. This can be achieved by

そして、このようにして得られたリターンローラ2にあ
っては、その外周部がセラミックス部材22にて形成さ
れていると共に、ローラ本体12の外輪部16内におい
て、該セラミックス部材22を保持する保持部材26を
有するところから、該リターンローラ2が支持するコン
ベヤベルトに対する当接によって、該外周面が摩耗によ
り変形し、該ベルトの運行に支障を来す虞がなくなり、
またセラミックス部材22を用いることにより、良好な
耐熱性も得られることとなり、それによってセラミック
ス部材22が埋設されているローラ本体12には、熱的
影響が及ぼされることはないのである。
In the return roller 2 thus obtained, the outer circumferential portion thereof is formed of a ceramic member 22, and a holder for holding the ceramic member 22 is provided within the outer ring portion 16 of the roller body 12. Since the member 26 is provided, there is no possibility that the outer circumferential surface will be deformed due to wear due to contact with the conveyor belt supported by the return roller 2, which will hinder the operation of the belt.
Further, by using the ceramic member 22, good heat resistance can be obtained, so that the roller body 12 in which the ceramic member 22 is embedded is not affected by heat.

以上、本発明の一実施例を図面に基づいて詳細に説明し
てきたが、本発明は、上述の記載によって何等限定的に
解釈されるものでは決してなく、本発明の趣旨を逸脱す
ることなく、当業者の知識に基づいて種々なる変更、修
正、改良等を加えられ得るものであることが、理解され
るべきである。
Although one embodiment of the present invention has been described above in detail based on the drawings, the present invention is not to be construed in any way limited by the above description, and without departing from the spirit of the present invention, It should be understood that various changes, modifications, improvements, etc. can be made based on the knowledge of those skilled in the art.

例えば、上記実施例においては、保I寺部材26に係合
、保持されるセラミックス部材22としては、該保持部
材26の補強リブ38を介して12個にて円形を為すよ
うに構成されているが、該セラミックス部材22の長手
方向長さを変えて、より少ない、或いはより多い個数に
て、リターンローラの外周部を構成すべく配設するよう
にすることも可能である。
For example, in the embodiment described above, the ceramic members 22 that are engaged with and held by the protection temple member 26 are configured to form a circular shape in 12 pieces through the reinforcing ribs 38 of the holding member 26. However, it is also possible to change the length of the ceramic member 22 in the longitudinal direction so that a smaller or larger number of the ceramic members 22 can be arranged to form the outer circumference of the return roller.

また、該セラミックス部材22の脚部36に設けられた
貫通孔24にあっても、上記実施例では3個設けられ、
その中央の孔が保持部材26の突起28と係合されてい
るが、かかる孔24の数及び該突起2日と係合する孔の
位置も適宜に変更し得るものである。
Also, in the above embodiment, three through holes 24 are provided in the leg portions 36 of the ceramic member 22.
Although the central hole is engaged with the protrusion 28 of the holding member 26, the number of such holes 24 and the position of the hole that engages with the protrusion 24 can be changed as appropriate.

(発明の効果) 以上の説明から明らかなように、本発明は、被搬送物の
ii!置されていないコンベヤベルトを支持するための
樹脂製のリターンローラであって、該ベルトに当接され
る外周面にセラミックス部材が露呈されると共に、リン
グ状の保持部材により、該セラミックス部材が係止され
た状態でローラ本体内に埋設されていることにより、該
外周面が、ベルトとの当接や該ベルトに付着した粉粒体
等によって摩耗し、また熱によって変形することが、効
果的に回避され、以てベルトの運行が良好に行なわれ得
ることとなったのである。
(Effects of the Invention) As is clear from the above description, the present invention has the advantages of the ii! A return roller made of resin for supporting a conveyor belt that is not placed, a ceramic member is exposed on the outer peripheral surface that comes into contact with the belt, and the ceramic member is engaged by a ring-shaped holding member. By being buried in the roller body in a stopped state, the outer peripheral surface is effectively prevented from being abraded by contact with the belt or by powder particles adhering to the belt, or deformed by heat. As a result, the belt can be operated smoothly.

【図面の簡単な説明】[Brief explanation of drawings]

第1図(a)〜(C)は、それぞれ、本発明の一実施例
に係るリターンローラを説明する図であり、(a)はリ
ターンローラの正面半裁図、(b)は(a)におけるA
−A断面図、(C)は背面半裁図である。また、第2図
(a)、(b)は、それぞれ、第1図に用いられるセラ
ミックス部材の正面図及び(a)におけるB−B断面図
であり、第3図(a)、(b)は、それぞれ、第1図に
用いられる保持部材の正面半裁図及び(a)におけるC
−C断面図である。更に、第4図は、第1図のリターン
ローラを形成するためのインサート成形装置を概略的に
示す半裁図であり、第5図は、セラミックス部材の3つ
のうち2つの孔及び隣接するセラミックス部材間に所定
の樹脂材料が充填された状態を示す、第1図(b)にお
けるv−■断面部分図である。 2;リターンローラ 12:ローラ本体 16:外輪部 20.3(l補強リブ 22:セラミックス部材 24:係合孔 28:保合突起 4:金属スリーブ 14:内輪部 18:連結部 26:保持部材 40:成形装置
FIGS. 1(a) to 1(C) are diagrams each illustrating a return roller according to an embodiment of the present invention, in which (a) is a front half-cut view of the return roller, and (b) is a diagram illustrating a return roller according to an embodiment of the present invention. A
-A sectional view, (C) is a back half-cut view. Moreover, FIGS. 2(a) and (b) are a front view and a BB sectional view in FIG. 1, respectively, of the ceramic member used in FIG. 1, and FIGS. 3(a) and (b) are a front half-cut view of the holding member used in FIG. 1 and C in (a), respectively.
-C sectional view. Furthermore, FIG. 4 is a half-cut view schematically showing the insert molding apparatus for forming the return roller of FIG. 1, and FIG. 1(b) is a partial cross-sectional view taken along the line v-■ in FIG. 2; Return roller 12: Roller main body 16: Outer ring portion 20.3 (l Reinforcement rib 22: Ceramic member 24: Engagement hole 28: Retaining protrusion 4: Metal sleeve 14: Inner ring portion 18: Connecting portion 26: Holding member 40 : Molding equipment

Claims (1)

【特許請求の範囲】 コンベヤベルトにて所定の被搬送物を搬送するようにし
た搬送装置における、該被搬送物の載置されていないコ
ンベヤベルト部分を支持するための樹脂製のリターンロ
ーラにして、 該リターンローラの外周側部位に位置するように埋設さ
れたリング状の保持部材と、 該保持部材に係止されて、該リターンローラの外周部に
沿って円形に配列せしめられた、リターンローラ外周面
に露呈されて前記コンベヤベルト部分に接する、複数の
円弧状のセラミックス部材と、 を有することを特徴とするリターンローラ。
[Claims] A return roller made of resin for supporting a portion of the conveyor belt on which the object is not placed, in a conveyor belt that transports a predetermined object. , a ring-shaped holding member buried so as to be located on the outer circumferential side of the return roller; and return rollers that are locked to the holding member and arranged in a circular pattern along the outer circumference of the return roller. A return roller comprising: a plurality of arc-shaped ceramic members exposed on the outer peripheral surface and in contact with the conveyor belt portion.
JP1096061A 1989-04-15 1989-04-15 Return roller Expired - Fee Related JP2753033B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1096061A JP2753033B2 (en) 1989-04-15 1989-04-15 Return roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1096061A JP2753033B2 (en) 1989-04-15 1989-04-15 Return roller

Publications (2)

Publication Number Publication Date
JPH02276708A true JPH02276708A (en) 1990-11-13
JP2753033B2 JP2753033B2 (en) 1998-05-18

Family

ID=14154923

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1096061A Expired - Fee Related JP2753033B2 (en) 1989-04-15 1989-04-15 Return roller

Country Status (1)

Country Link
JP (1) JP2753033B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003056550A (en) * 2001-08-22 2003-02-26 Tashiko:Kk Resin roller with built-in bearing, method for manufacturing the same, and molding die for manufacturing the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592019U (en) * 1982-06-25 1984-01-07 松下電工株式会社 Elevating lighting equipment
JPS621146U (en) * 1985-06-19 1987-01-07

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592019U (en) * 1982-06-25 1984-01-07 松下電工株式会社 Elevating lighting equipment
JPS621146U (en) * 1985-06-19 1987-01-07

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003056550A (en) * 2001-08-22 2003-02-26 Tashiko:Kk Resin roller with built-in bearing, method for manufacturing the same, and molding die for manufacturing the same

Also Published As

Publication number Publication date
JP2753033B2 (en) 1998-05-18

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