JPH08121542A - Erroneous installation preventive device of chain cover - Google Patents
Erroneous installation preventive device of chain coverInfo
- Publication number
- JPH08121542A JPH08121542A JP27859294A JP27859294A JPH08121542A JP H08121542 A JPH08121542 A JP H08121542A JP 27859294 A JP27859294 A JP 27859294A JP 27859294 A JP27859294 A JP 27859294A JP H08121542 A JPH08121542 A JP H08121542A
- Authority
- JP
- Japan
- Prior art keywords
- chain
- pair
- side walls
- chain cover
- link
- 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
Links
Landscapes
- Chain Conveyers (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、伝動用チェーン、コン
ベヤ用チェーン、特にローラチェーンの対向する一対の
外リンク間に抱持嵌着される断面コ字状のチェーンカバ
ーに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission chain, a conveyor chain, and more particularly to a chain cover having a U-shaped cross section which is fitted and held between a pair of outer links of a roller chain which face each other.
【0002】[0002]
【従来の技術】従来のチェーンカバーは、伝動用チェー
ンに装着される場合には、例えば、実公平3−7478
号公報に開示されているように、チェーンに塗布された
油等の汚染物の飛散防止又は衣服等への付着防止の目的
で用いられ、コンベヤ用チェーンに装着される場合に
は、例えば、実願昭49−40056号(実開昭50−
128883号公報)の明細書並びに図面に開示されて
いるように、搬送物を載置する搬送板の目的で用いられ
ている。2. Description of the Related Art When a conventional chain cover is attached to a transmission chain, for example, it is used in Japanese Utility Model Publication No. 3-7478.
As disclosed in the publication, it is used for the purpose of preventing the scattering of contaminants such as oil applied to the chain or preventing it from adhering to clothes and the like. Japanese wish No. 49-40056
As disclosed in the specification of the Japanese Patent No. 128883) and the drawings, it is used for the purpose of a carrier plate on which a carrier is placed.
【0003】そして、いずれの目的の場合においても、
該チェーンカバーはチェーンの屈曲並びにリンクの連結
ピンの周りの回動等に支障を与えないように、対向する
一対の外リンク間に抱持嵌着されている。For any purpose,
The chain cover is held and fitted between a pair of opposed outer links so as not to hinder the bending of the chain and the rotation of the link around the connecting pin.
【0004】[0004]
【発明が解決しようとする課題】ところが、上述した従
来のチェーンカバーは、チェーンに装着する際に、内リ
ンクと外リンクとが連結ピンによって交互に多数連鎖状
に連結されているため、外リンクに抱持嵌着されるべき
ところを、誤って、内リンクによって連結されている相
隣接する外リンク端部間、すなわち、1つの内リンクを
貫挿している2つの連結ピンの外リンク外側面突出端間
に装着されることが屡々起こる。何故ならば、誤って装
着した場合でも、チェーンカバーの一対の対向側壁は外
リンクの外側面間に抱持嵌着される間隔を有しているか
らである。However, in the above-described conventional chain cover, when the chain cover is mounted on the chain, the inner links and the outer links are alternately connected in a chain by connecting pins, so that the outer links are connected. By mistake, the outer link outer surface of the two connecting pins that penetrate one inner link, that is, between the adjacent outer link ends connected by the inner link. It often happens that it is mounted between the protruding ends. This is because the pair of opposed side walls of the chain cover has a space for embracing and fitting between the outer surfaces of the outer links even if they are incorrectly installed.
【0005】しかし、上述のようにチェーンカバーを誤
着した場合には、チェーンが屈曲する際、チェーンの外
リンクが屈曲回動してチェーンカバーの一対の側壁の対
向内側面に摺擦して該対向内側面を摩損し、チェーンカ
バーの抱持嵌着力を低下させてチェーンカバーの脱落事
故の原因の1つとなり、また、チェーンの摩耗伸びによ
って外リンクのチェーン長手方向間隔が離間して、チェ
ーンカバーの側壁に形成した連結ピン端係着部と干渉し
該係着部の摩損によるチェーンカバー装着力の低下を招
き、該カバーの脱落の原因となる。However, if the chain cover is incorrectly attached as described above, when the chain bends, the outer link of the chain bends and turns to rub against the inner side surfaces of the pair of side walls of the chain cover which face each other. The inner surfaces facing each other are worn away, and the holding force of the chain cover is reduced to cause one of the accidents of the chain cover falling off. Also, due to wear elongation of the chain, the distance between the outer links in the longitudinal direction of the chain is separated, It interferes with the connecting pin end engaging portion formed on the side wall of the chain cover, and wear of the engaging portion reduces the chain cover mounting force, causing the cover to fall off.
【0006】[0006]
【課題を解決するための手段】そこで、本発明は上述し
た従来例の課題を解決するため、チェーンカバーの内面
に誤着干渉突部を設けて、誤着の場合は該突部が内リン
ク又は外リンクに干渉して装着不能ならしめたものであ
って、断面コ字状チェーンカバーの一対の対向側壁の上
端縁を連結するウェブ部内面のチェーン長手方向中央部
位に、チェーンの対向する一対の外リンク内側面間で突
出する内リンク上端縁干渉突部を形成し、又は、ウェブ
部と一対の対向側壁上端縁との連結隅部のチェーン長手
方向両端に、対向する一対の内リンク外側面間に抱持嵌
着する外リンク上端縁干渉突部を形成したものである。In order to solve the above-mentioned problems of the conventional example, the present invention provides a mis-attachment interference projection on the inner surface of the chain cover, and in the case of mis-attachment, the projection is an inner link. Alternatively, a pair of chains facing each other at the central portion in the chain longitudinal direction on the inner surface of the web portion that connects the upper edges of the pair of opposing side walls of the U-shaped cross section of the chain cover that interferes with the outer link. Outer link inner side surfaces of the outer link that project between the inner side edges of the outer link, or the pair of inner link outer surfaces facing each other at both ends in the chain longitudinal direction of the connection corner between the web portion and the pair of opposite side wall upper edge edges. The outer link upper end edge interference protrusion is formed between the side faces by embracing and fitting.
【0007】[0007]
【作用】請求項1の発明において、断面コ字状チェーン
カバーの一対の対向側壁の上端縁を連結するウェブ部内
面のチェーン長手方向中央部位に、チェーンの対向する
一対の外リンク内側面間で突出する内リンク上端縁干渉
突部を形成したから、チェーンカバーが外リンクに正着
された場合には、内リンク上端縁干渉突部は隣接する内
リンクの端部間に挿入されて内リンク上端縁と干渉せ
ず、誤着の場合には該干渉突部は内リンク上端縁と干渉
するので抱持嵌着は不能となる。According to the first aspect of the present invention, a chain longitudinal center portion of the inner surface of the web portion connecting the upper end edges of the pair of opposed side walls of the U-shaped chain cover is provided between the pair of opposed outer link inner surfaces of the chain. Since the protruding inner link upper edge interference protrusion is formed, when the chain cover is directly attached to the outer link, the inner link upper edge interference protrusion is inserted between the ends of the adjacent inner links. In the case of erroneous attachment, the interference protrusion does not interfere with the upper end edge and interferes with the upper edge of the inner link.
【0008】また、請求項2の発明において、ウェブ部
と一対の対向側壁上端縁との連結隅部のチェーン長手方
向両端部に、対向する一対の内リンク外側面間に抱持嵌
着する外リンク上端縁干渉突部を形成したから、チェー
ンカバーが外リンクに正着された場合には、該突部が隣
接する外リンク両端間に挿入されて外リンク上端縁と干
渉せず、誤着の場合には該突部は外リンク上端縁と干渉
して装着不能となる。According to the second aspect of the present invention, the outer ends of the pair of inner links are held and fitted to the opposite ends of the chain in the chain longitudinal direction at the connecting corners between the web portion and the upper edges of the pair of opposite side walls. Since the link top edge interference protrusion is formed, when the chain cover is directly attached to the outer link, the protrusion is inserted between both ends of the adjacent outer link and does not interfere with the outer link top edge, so that the chain is not attached incorrectly. In this case, the protrusion interferes with the upper edge of the outer link and cannot be mounted.
【0009】[0009]
【実施例】図1〜図5は、請求項1の発明のチェーンカ
バーの実施例を示し、図6〜図9は請求項2の発明の実
施例を示す。図1は請求項1の発明のチェーンカバー1
の斜視図であって、チェーンカバー1はコ字状断面を有
する可撓弾性体であって、対向する一対の側壁2A,2
Bと該両側壁2A,2Bの上端縁を連結するウェブ部3
で断面コ字状に形成されている。1 to 5 show an embodiment of a chain cover according to the invention of claim 1, and FIGS. 6 to 9 show an embodiment of the invention of claim 2. FIG. 1 is a chain cover 1 of the invention of claim 1.
1 is a perspective view of a chain cover 1 is a flexible elastic body having a U-shaped cross section, and a pair of opposing side walls 2A, 2
A web portion 3 connecting the upper edges of the two side walls 2A, 2B with B
It has a U-shaped cross section.
【0010】両側壁2A,2Bには一対のチェーン連結
ピン4の端部に係合する係着部5A,5A,5B,5B
が形成されるとともに、チェーンカバー1を弾性を利用
してチェーンに押圧装着する際に連結ピン端部を前記係
着部に容易に誘導するための傾斜案内凹部6A,6A,
6B,6Bが凹設されている。Engagement portions 5A, 5A, 5B, 5B that engage with the ends of the pair of chain connecting pins 4 on the side walls 2A, 2B.
And the inclined guide recesses 6A, 6A for easily guiding the connecting pin end portion to the engaging portion when the chain cover 1 is pressed and attached to the chain using elasticity.
6B and 6B are recessed.
【0011】そして、ウェブ部3の内面のチェーン長手
方向中央部位には、チェーンの対向する一対の外リンク
7A,7B(図2〜図4)の内側面間で突出し内リンク
8A,8Bの上端縁に干渉する突部9が図5(a),
(b),(c)等で示す種々の形状において突出形成さ
れ、図1においては図5(a)の形状に、図4において
は図5(b)の形状に、夫々形成されている。At the center of the inner surface of the web portion 3 in the chain longitudinal direction, the upper ends of the inner links 8A, 8B project between the inner surfaces of the pair of outer links 7A, 7B (FIGS. 2 to 4) facing each other. The protrusion 9 that interferes with the edge is shown in FIG.
The protrusions are formed in various shapes shown in (b), (c), etc., and are formed in the shape of FIG. 5 (a) in FIG. 1 and in the shape of FIG. 5 (b) in FIG. 4, respectively.
【0012】図4は図2に示すチェーンカバー1がチェ
ーンCに正着された状態の側断面図であって、突部9が
内リンク8A,8Bの隣接端部間の谷間に挿入されるの
で、内リンク上端縁に衝接干渉せず、誤着の場合は、図
3に示す如く、突部9が内リンク8A,8Bの上端縁に
衝接干渉してチェーンCへの装着は不能となる。FIG. 4 is a side sectional view of the chain cover 1 shown in FIG. 2 fixedly attached to the chain C. The protrusion 9 is inserted into a valley between the adjacent ends of the inner links 8A and 8B. Therefore, the inner link does not interfere with the upper edge of the inner link, and in the case of incorrect attachment, the projection 9 interferes with the upper edge of the inner links 8A and 8B and cannot be attached to the chain C as shown in FIG. Becomes
【0013】また、図6は請求項2の発明のチェーンカ
バー11の斜視図であって、該チェーンカバー11は対
向する一対の側壁12A,12Bと該両側壁の上端縁を
連結するウェブ部13でコ字状断面に形成された可撓弾
性体であって、側壁には連結ピン14の端部に係合する
係着部15A,15A,15B,15Bと、連結ピン端
の係着誘導傾斜案内凹部16A,16A,16B,16
Bが凹設されている。FIG. 6 is a perspective view of the chain cover 11 of the invention of claim 2, wherein the chain cover 11 connects a pair of opposing side walls 12A and 12B and a web portion 13 connecting the upper end edges of both side walls. It is a flexible elastic body formed in a U-shaped cross section, and has engaging portions 15A, 15A, 15B, 15B engaging with the end portion of the connecting pin 14 on the side wall, and an engaging guide inclination of the connecting pin end. Guide recesses 16A, 16A, 16B, 16
B is recessed.
【0014】そして、一対の対向側壁12A,12Bの
上端縁とウェブ部13との連結隅部のチェーン長手方向
両端部には、対向する一対の内リンク8A,8Bの外側
面間に抱持嵌着する対向抱持面17A,17Bと外リン
ク7A,7Bの上端縁に干渉する衝接面18A,18B
で形成される外リンク上端縁干渉突部19A,19Bが
形成されている。Then, at both ends in the chain longitudinal direction of the connecting corners between the upper end edges of the pair of opposed side walls 12A, 12B and the web portion 13, a hug fit is provided between the outer surfaces of the pair of opposed inner links 8A, 8B. Opposed holding surfaces 17A, 17B to be worn and abutting surfaces 18A, 18B for interfering with the upper edges of the outer links 7A, 7B.
The outer link upper edge interference projections 19A and 19B formed in Step 1 are formed.
【0015】図7は、該チェーンカバー11がチェーン
Cに正着した状態のチェーンカバー断面図であって、該
突部19A,19Bは、外リンク7A,7Bの隣接端部
間の谷間に挿入されてチェーンCに装着され、図8に示
す誤着の状態においては、該突部19A,19Bが外リ
ンク7A,7Bの上端縁に衝接干渉して装着不能とな
る。したがって、請求項1および2のいずれの発明にお
いても、誤着の場合にはチェーンカバーはチェーンに装
着できなくなる。FIG. 7 is a cross-sectional view of the chain cover 11 with the chain cover 11 fixedly attached to the chain C. The protrusions 19A and 19B are inserted in the valleys between the adjacent ends of the outer links 7A and 7B. In the mis-attached state shown in FIG. 8, the protrusions 19A and 19B collide with the upper edges of the outer links 7A and 7B and interfere with each other, so that they cannot be attached. Therefore, in both the first and second aspects of the invention, the chain cover cannot be attached to the chain in the case of incorrect attachment.
【0016】図9は、該突部19A,19Bの種々の形
状を示し、同図(a)は図8の実施例の形状である。FIG. 9 shows various shapes of the projections 19A and 19B, and FIG. 9A shows the shape of the embodiment of FIG.
【0017】なお、上述した実施例における連結ピン係
着部は丸穴であるが、チェーンカバーを外リンクに抱持
嵌着できれば、必ずしも丸穴でなくても、従来公知の多
くの手段を採用しても差支えない。The connecting pin engaging portion in the above-described embodiment is a round hole, but if the chain cover can be held and fitted to the outer link, it does not necessarily have to be a round hole. It doesn't matter.
【0018】[0018]
【発明の効果】本発明は、チェーンカバーがチェーンに
正着の場合にはリンク上端縁に衝接干渉することなく、
リンクの隣接端部間の谷間に挿入され、誤着の場合には
リンク上端縁に衝接干渉する突部をチェーンカバーの内
面に突設したので、チェーンカバーのチェーンに対する
正着に格別の注意を払わなくても、誤着の場合には装着
不能となるから、装着された場合にはすべて正着とな
り、誤着を簡単且つきわめて容易に回避できるものであ
り、チェーンカバーをチェーンに装着する作業能率を飛
躍的に向上させることができるものであり、作業者の疲
労を著しく軽減するものである。According to the present invention, when the chain cover is directly attached to the chain, the upper end edge of the link does not abut and interfere with the link.
Since a protrusion that is inserted into the valley between the adjacent ends of the link and that interferes with the upper edge of the link in the case of incorrect attachment is provided on the inner surface of the chain cover, special attention should be paid to the correct attachment of the chain cover to the chain. Even if you don't pay, you will not be able to install the product if it is attached incorrectly, so if you install it, all will be properly attached, and you can easily and extremely easily avoid attachment. The work efficiency can be dramatically improved, and the fatigue of the worker can be significantly reduced.
【図1】 請求項1の発明のチェーンカバーの実施例の
斜視図である。FIG. 1 is a perspective view of an embodiment of a chain cover according to the invention of claim 1. FIG.
【図2】 チェーンカバー正着時の一部断面正面図であ
る。FIG. 2 is a partial cross-sectional front view when the chain cover is fixedly attached.
【図3】 チェーンカバー誤着時の一部断面正面図であ
る。FIG. 3 is a partially sectional front view when the chain cover is erroneously attached.
【図4】 チェーンカバー正着時の側断面図である。FIG. 4 is a side sectional view when the chain cover is fixedly attached.
【図5】 チェーンカバーの側面図であって、(a)は
1個の内リンク上端縁干渉突部、(b),(c)は2個
の干渉突部を示す。FIG. 5 is a side view of the chain cover, in which (a) shows one inner link upper edge interference protrusion and (b) and (c) show two interference protrusions.
【図6】 請求項2の発明のチェーンカバーの実施例の
斜視図である。FIG. 6 is a perspective view of an embodiment of the chain cover according to the invention of claim 2;
【図7】 チェーンカバー正着時の一部断面正面図であ
る。FIG. 7 is a partial cross-sectional front view when the chain cover is fixedly attached.
【図8】 チェーンカバー誤着時の一部断面正面図であ
る。FIG. 8 is a front view, partly in section, of when the chain cover is erroneously attached.
【図9】 チェーンカバーの正面断面図であって、
(a),(b),(c)は夫々内リンク上端縁干渉突部
の異なった形状を示す。FIG. 9 is a front sectional view of the chain cover,
(A), (b) and (c) show different shapes of the inner link upper edge interference projections, respectively.
1,11 チェーンカバー 2A,2B,12A,12B 対向側壁 3,13 ウェブ部 4 連結ピン 5A,5B,15A,15B 連結ピン端係着部 7A,7B 外リンク 8A,8B 内リンク 9 内リンク上端縁干渉突
部 19A,19B 外リンク上端縁干渉突
部1,11 Chain cover 2A, 2B, 12A, 12B Opposing side wall 3,13 Web part 4 Connecting pin 5A, 5B, 15A, 15B Connecting pin end engaging part 7A, 7B Outer link 8A, 8B Inner link 9 Inner link upper edge Interference protrusion 19A, 19B Outer link upper edge interference protrusion
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成7年1月9日[Submission date] January 9, 1995
【手続補正1】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0017[Correction target item name] 0017
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0017】なお、上述した実施例におけるチェーンカ
バーは可撓弾性体で構成されているが、該可撓弾性体は
樹脂に蛍光顔料を混練して成形してもよく、また、可撓
弾性体の一部に蛍光材料からなる蛍光部材を装着しても
よい。そしてまた、上述した実施例における連結ピン係
着部は丸穴であるが、チェーンカバーを外リンクに抱持
嵌着できれば、必ずしも丸穴でなくても、従来公知の多
くの手段を採用しても差支えない。Incidentally, the chain carrier in the above-mentioned embodiment
The bar is made of a flexible elastic body, and the flexible elastic body is
Fluorescent pigment may be kneaded into resin to be molded, and flexible
Even if a fluorescent member made of fluorescent material is attached to a part of the elastic body
Good. Further, the connecting pin engaging portion in the above-mentioned embodiment is a round hole, but if the chain cover can be hug-fitted to the outer link, even if it is not necessarily a round hole, many conventionally known means are adopted. Does not matter.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 永井 康詞 大阪府大阪市鶴見区鶴見4丁目17番96号 株式会社椿本チエイン内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasushi Nagai 4-17-96 Tsurumi, Tsurumi-ku, Osaka City, Osaka Prefecture Tsubakimoto Chain Co., Ltd.
Claims (2)
面間に抱持嵌着する離間対向した一対の側壁と該一対の
側壁の上端縁を連結するウェブ部とを有する断面コ字状
の可撓弾性体からなるチェーンカバーにおいて、前記一
対の側壁に外リンク外側面より突出した一対の連結ピン
端に係合する係着部を形成し、前記ウェブ部内面のチェ
ーン長手方向中央部位にチェーンの対向する一対の外リ
ンク内側面間で突出する内リンク上端縁干渉突部を形成
したチェーンカバーの誤着防止装置。1. A U-shaped cross section having a pair of side walls spaced apart and opposed to each other, which are embraced and fitted between a pair of outer side outer surfaces of the chain opposite to each other, and a web portion connecting upper end edges of the pair of side walls. In the chain cover made of a flexible elastic body, the pair of side walls are formed with engaging portions that engage the ends of the pair of connecting pins protruding from the outer surfaces of the outer links, and the chain inner portion of the inner surface of the web portion has a chain longitudinal direction central portion of the chain. An erroneous attachment preventing device for a chain cover, wherein an inner link upper end edge interference protrusion is formed between a pair of opposing inner faces of the outer link.
面間に抱持嵌着する離間対向した一対の側壁と該一対の
側壁の上端縁を連結するウェブ部とを有する断面コ字状
の可撓弾性体からなるチェーンカバーにおいて、前記一
対の側壁に外リンク外側面より突出した一対の連結ピン
端に係合する係着部を形成し、前記一対の対向側壁上端
縁とウェブ部との連結隅部のチェーン長手方向両端部に
対向する一対の内リンク外側面間に抱持嵌着する外リン
ク上端縁干渉突部を形成した、チェーンカバーの誤着防
止装置。2. A C-shaped cross section having a pair of spaced side walls opposed to each other, which are embracingly fitted between a pair of outer side outer surfaces of the chain facing each other, and a web portion connecting upper end edges of the pair of side walls. In a chain cover made of a flexible elastic body, engaging portions are formed on the pair of side walls to engage with a pair of connecting pin ends projecting from the outer surface of the outer link, and the pair of opposing side wall upper edges and the web portion are connected. An erroneous attachment preventive device for a chain cover, wherein an outer link upper edge interference projection is formed between a pair of inner link outer surfaces facing each other at both ends of the chain in the longitudinal direction of the corner.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27859294A JP2895761B2 (en) | 1994-10-19 | 1994-10-19 | Chain cover erroneous attachment prevention device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27859294A JP2895761B2 (en) | 1994-10-19 | 1994-10-19 | Chain cover erroneous attachment prevention device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08121542A true JPH08121542A (en) | 1996-05-14 |
JP2895761B2 JP2895761B2 (en) | 1999-05-24 |
Family
ID=17599417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27859294A Expired - Lifetime JP2895761B2 (en) | 1994-10-19 | 1994-10-19 | Chain cover erroneous attachment prevention device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2895761B2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6662545B1 (en) | 2002-11-05 | 2003-12-16 | Masakazu Yamamoto | Chain cover |
KR20150118708A (en) * | 2014-04-15 | 2015-10-23 | 송경식 | Improved chain cover |
CN106224439A (en) * | 2016-09-22 | 2016-12-14 | 苏州顺革智能科技有限公司 | A kind of chain with chain link protective cover |
CN107387665A (en) * | 2017-08-04 | 2017-11-24 | 苏州顺革智能科技有限公司 | A kind of large scale chain with dust guard |
KR20180033545A (en) * | 2015-07-29 | 2018-04-03 | 가부시기가이샤쯔바기모도체인 | Flexible restraining attachment for chain |
WO2019155619A1 (en) * | 2018-02-09 | 2019-08-15 | 三菱ロジスネクスト株式会社 | Protector, chain with protector, and work vehicle |
CN113847390A (en) * | 2021-09-18 | 2021-12-28 | 青岛特来电新能源科技有限公司 | Chain transmission device, telescopic arm and charging manipulator |
-
1994
- 1994-10-19 JP JP27859294A patent/JP2895761B2/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6662545B1 (en) | 2002-11-05 | 2003-12-16 | Masakazu Yamamoto | Chain cover |
KR20150118708A (en) * | 2014-04-15 | 2015-10-23 | 송경식 | Improved chain cover |
KR20180033545A (en) * | 2015-07-29 | 2018-04-03 | 가부시기가이샤쯔바기모도체인 | Flexible restraining attachment for chain |
CN106224439A (en) * | 2016-09-22 | 2016-12-14 | 苏州顺革智能科技有限公司 | A kind of chain with chain link protective cover |
CN107387665A (en) * | 2017-08-04 | 2017-11-24 | 苏州顺革智能科技有限公司 | A kind of large scale chain with dust guard |
WO2019155619A1 (en) * | 2018-02-09 | 2019-08-15 | 三菱ロジスネクスト株式会社 | Protector, chain with protector, and work vehicle |
CN113847390A (en) * | 2021-09-18 | 2021-12-28 | 青岛特来电新能源科技有限公司 | Chain transmission device, telescopic arm and charging manipulator |
Also Published As
Publication number | Publication date |
---|---|
JP2895761B2 (en) | 1999-05-24 |
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