JPH08113490A - Noise preventing device of forklift truck - Google Patents
Noise preventing device of forklift truckInfo
- Publication number
- JPH08113490A JPH08113490A JP24897894A JP24897894A JPH08113490A JP H08113490 A JPH08113490 A JP H08113490A JP 24897894 A JP24897894 A JP 24897894A JP 24897894 A JP24897894 A JP 24897894A JP H08113490 A JPH08113490 A JP H08113490A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- guide roller
- front surface
- contact member
- roller
- 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.)
- Withdrawn
Links
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、フォークリフト車の騒
音防止装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a noise suppression device for a forklift truck.
【０００２】[0002]
【従来の技術】フォークリフト車は、たとえばマストの
一部材である内枠に、複数個のガイドローラを介して昇
降自在なリフトブラケットが取り付けられ、このリフト
ブラケット側に、フィンガーバを介してフォークが配設
されている。このようなフォークリフト車においては、
内枠に形成された前後のガイド面とガイドローラとの間
には隙間があり、そして構造上、リフトブラケットの下
部に昇降駆動用のチェーンが連結されているため、下位
のガイドローラは前部ガイド面との間に隙間を生じ、上
位のガイドローラは後部ガイド面との間に隙間を生じ
る。したがって走行時など車両が振動すると、下位のガ
イドローラの前部ガイド面への当接部を支点として、ブ
ラケットが前後に揺動し、上位のガイドローラが前後の
ガイド面に交互に衝突して騒音（打音）を発生すること
になる。2. Description of the Related Art In a forklift truck, for example, a lift bracket which is movable up and down through a plurality of guide rollers is attached to an inner frame which is one member of a mast, and a fork is attached to the lift bracket side through a finger bar. It is arranged. In such a forklift truck,
Since there is a gap between the front and rear guide surfaces formed on the inner frame and the guide rollers, and because of the structure, the lifting drive chain is connected to the lower part of the lift bracket, the lower guide rollers are A gap is formed between the guide roller and the upper guide roller, and a gap is formed between the upper guide roller and the rear guide surface. Therefore, when the vehicle vibrates during traveling, the bracket swings back and forth around the contact point of the lower guide roller with the front guide surface as a fulcrum, and the upper guide roller alternately collides with the front and rear guide surfaces. Noise (tapping sound) will be generated.
【０００３】このような問題点を解決するものとして、
従来、たとえば実公昭61−13514 号に示される騒音防止
装置が提供されている。この従来構成は、アウタマスト
とインナマストとの間、ならびにインナマストとリフト
ブラケットとの間に、それぞれ上下一対の金属ローラが
介在され、そして上下一対の金属ローラ間に、転動面に
常に当接する複数の弾性ローラが配設されている。この
従来構成によると、金属ローラが転動面に当接する前
に、この転動面に弾性ローラが押圧当接され、以てガタ
ツキ音が抑制される。As a means for solving such problems,
Conventionally, for example, a noise suppressing device disclosed in Japanese Utility Model Publication No. 61-13514 has been provided. In this conventional configuration, a pair of upper and lower metal rollers are respectively interposed between the outer mast and the inner mast, and between the inner mast and the lift bracket, and between the pair of upper and lower metal rollers, a plurality of metal rollers that are always in contact with the rolling surface are provided. An elastic roller is provided. According to this conventional configuration, the elastic roller is pressed against the rolling surface before the metal roller comes into contact with the rolling surface, so that rattling noise is suppressed.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記した従来
構成においては、金属ローラならびに弾性ローラが同じ
転動面に当接されることから、この弾性ローラは寿命の
短いものになる。すなわち転動面は、金属ローラによっ
て大きな力を受けて剥離が発生し、段差、バリ、返り、
金属粉などが発生する。このような転動面に常に当接す
る弾性ローラは、摩耗や変形などが発生し易くなり、以
て寿命の短いものになる。また各金属ローラにそれぞれ
対応して複数の弾性ローラが設けられることで、構造が
複雑にかつ高価になる。However, in the above-mentioned conventional structure, since the metal roller and the elastic roller are in contact with the same rolling surface, the elastic roller has a short life. That is, the rolling surface receives a large force by the metal roller and peels off, resulting in a step, a burr, a return,
Metal powder is generated. Such an elastic roller, which is always in contact with the rolling surface, is apt to be worn or deformed, and has a short life. Further, since a plurality of elastic rollers are provided corresponding to each metal roller, the structure becomes complicated and the cost becomes high.
【０００５】本発明の目的とするところは、構造が簡単
かつ安価であり、しかも長期間に亘って好適に使用し得
るフォークリフト車の騒音防止装置を提供する点にあ
る。An object of the present invention is to provide a noise suppression device for a forklift truck which has a simple and inexpensive structure and can be suitably used for a long period of time.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成すべく本
発明のフォークリフト車の騒音防止装置は、内側に前後
一対のガイド面を形成した第１部材に、両ガイド面に対
向する上下複数個のガイドローラを介して昇降自在な第
２部材を取り付け、この第２部材側に、第１部材の前面
に対向する当接部材を、前面に対して位置調整自在に設
けている。In order to achieve the above object, a noise suppressing device for a forklift truck according to the present invention comprises a first member having a pair of front and rear guide surfaces formed on the inside thereof, and a plurality of upper and lower surfaces facing the both guide surfaces. A second member that can be moved up and down is attached via the guide roller, and a contact member facing the front surface of the first member is provided on the second member side so that the position of the contact member can be adjusted with respect to the front surface.
【０００７】[0007]
【作用】上記した本発明の構成によると、第２部材を昇
降作動させたとき、上位のガイドローラは前部のガイド
面上で転動し、かつ下位のガイドローラは後部のガイド
面上で転動することになり、以て第２部材は第１部材に
案内されて昇降し得る。その際に当接部材は、前面との
間に小さな隙間を置いて、または軽い接触を保って昇降
する。According to the above-mentioned structure of the present invention, when the second member is moved up and down, the upper guide roller rolls on the front guide surface and the lower guide roller rolls on the rear guide surface. As a result, the second member can roll up and down while being guided by the first member. At that time, the abutting member moves up and down with a small gap between the abutting member and the front surface or keeping a light contact.
【０００８】そして走行時など車両が振動することで、
下位のガイドローラの後部のガイド面への当接部を支点
として、第２部材が前後に揺動しようとするが、このと
き前面に当接部材が当接して、それ以上に第２部材が後
方へ揺動することを阻止し得る。これにより上位のガイ
ドローラは後方へ殆ど動かないことから、後部のガイド
面に衝突せず、騒音（打音）は発生しない。When the vehicle vibrates during traveling,
The second member tries to swing back and forth around the contact portion of the rear portion of the lower guide roller with the guide surface as a fulcrum. At this time, the contact member comes into contact with the front surface, and the second member is further moved. It may prevent rocking backwards. As a result, the upper guide roller hardly moves rearward, so that the upper guide roller does not collide with the rear guide surface and no noise (tapping sound) is generated.
【０００９】第１部材の前面は、ガイドローラが転動し
ないことから、すなわち大きな力を受けないことから剥
離は発生せず、段差、バリ、返り、金属粉なども発生し
ない。したがって、このように奇麗な前面に対して作用
する当接部材は、摩耗や変形などが発生し難くなり、寿
命の長いものになる。長期間の使用により摩損した当接
部材は、前面に対して突出調整し得、そして当接部材は
最少数を配設すればよいことから、構造が簡単にかつ安
価になり、さらに突出調整も容易に行える。Since the guide roller does not roll on the front surface of the first member, that is, it does not receive a large force, peeling does not occur, and steps, burrs, burr, and metal powder do not occur. Therefore, the contact member that acts on the beautiful front surface is less likely to be worn or deformed, and has a long life. The abutting member that has been worn down for a long period of time can be adjusted in protrusion with respect to the front surface, and since the minimum number of abutting members can be provided, the structure is simple and inexpensive, and the protrusion can be adjusted. Easy to do.
【００１０】[0010]
【実施例】以下に本発明の一実施例を図に基づいて説明
する。車両本体の前部にマストの一部材である内枠（第
１部材の一例）１が配設され、この内枠１は、平板部２
と、この平板部２に一体化したアングル部３とにより型
レール状に構成され、そして平板部２とアングル部３と
の相対向した内側面により前後一対のガイド面２Ａ，３
Ａが形成される。An embodiment of the present invention will be described below with reference to the drawings. An inner frame (an example of the first member) 1 which is a member of the mast is arranged in the front portion of the vehicle body, and the inner frame 1 includes a flat plate portion 2
And the angle portion 3 integrated with the flat plate portion 2 are configured in a mold rail shape, and the pair of front and rear guide surfaces 2A, 3 are formed by the inner side surfaces of the flat plate portion 2 and the angle portion 3 which face each other.
A is formed.
【００１１】上下一対のフィンガーバ４と一体のリフト
ブラケット（第２部材の一例）５は、両フィンガーバ４
間を連結する前板部６と、この前板部６から後方に連設
した後板部７とにより構成される。後板部７には、前記
マスト１に内嵌して両ガイド面２Ａ，３Ａに対向する上
下複数個（図では上下に２個）のガイドローラ８，９が
取り付けられ、また前板部６には、前記アングル部３の
左右側面に対向するサイドローラ10が取り付けられる。A lift bracket (an example of a second member) 5 integrated with a pair of upper and lower finger bars 4 is provided with both finger bars 4.
The front plate portion 6 connecting the two and the rear plate portion 7 connected rearward from the front plate portion 6 are formed. A plurality of upper and lower guide rollers 8 and 9 (two upper and lower in the figure) which are fitted into the mast 1 and face the guide surfaces 2A and 3A are attached to the rear plate portion 7, and the front plate portion 6 is also provided. A side roller 10 is attached to the right and left side surfaces of the angle portion 3 so as to face each other.
【００１２】そして後板部７における両ガイドローラ
８，９間でかつ下位のガイドローラ９寄りの位置から
は、後方への連結部材11が連設され、この連結部材11
は、昇降駆動装置側の駆動チェーン12に連結されてい
る。したがってリフトブラケット５は、駆動チェーン12
の昇降作動により内枠１に案内されて昇降自在となる。A rear connecting member 11 is provided between the guide rollers 8 and 9 of the rear plate portion 7 and at a position near the lower guide roller 9, and this connecting member 11 is connected.
Is connected to a drive chain 12 on the side of the lifting drive. Therefore, the lift bracket 5 is connected to the drive chain 12
It is guided up and down by the inner frame 1 by the lifting operation of the.
【００１３】前記リフトブラケット５側には、前記内枠
１の前面１Ａに対向する当接部材13が、前面１Ａに対し
て位置調整自在に設けられる。すなわち当接部材13は、
たとえば樹脂により円板状に形成されており、その前部
のボス部14から前方にねじ体15が連設されている。そし
てリフトブラケット５の前板部６で上位のフィンガーバ
４寄りの位置には前後方向のねじ孔16が形成され、この
ねじ孔16にねじ体15を螺合させることで、当接部材13
は、前面１Ａに対して位置調整自在として前板部６に取
り付けられる。17はナット体を示す。On the lift bracket 5 side, a contact member 13 facing the front surface 1A of the inner frame 1 is provided so that the position of the contact member 13 can be adjusted with respect to the front surface 1A. That is, the contact member 13 is
For example, it is formed of resin into a disc shape, and a screw body 15 is continuously provided from the boss portion 14 at the front portion thereof to the front. A screw hole 16 in the front-rear direction is formed at a position near the upper finger bar 4 on the front plate portion 6 of the lift bracket 5, and a screw body 15 is screwed into the screw hole 16 to contact the contact member 13
Is attached to the front plate portion 6 so that its position can be adjusted with respect to the front surface 1A. 17 indicates a nut body.
【００１４】上位のフィンガーバ４には、上方に開放し
た凹状の被係合部20が形成され、また下位のフィンガー
バ４にも、下方に開放した凹状の被係合部20が形成され
ている。フォーク21は、立上り部22と横板部23とにより
Ｌ形に形成され、そして立上り部22の背面上端に下向き
の係合片24が設けられるとともに、背面下部に上向きの
係合片24が設けられている。したがって両係合片24を対
応する被係合部20に係合させることで、フォーク21を両
フィンガーバ４間に取り付け得る。The upper finger bar 4 is formed with a concave engaged portion 20 which is opened upward, and the lower finger bar 4 is also formed with a concave engaged portion 20 which is opened downward. There is. The fork 21 is formed in an L shape by the rising portion 22 and the horizontal plate portion 23, and the downward engaging piece 24 is provided at the upper end of the rear surface of the rising portion 22 and the upward engaging piece 24 is provided at the lower rear surface. Has been. Therefore, the forks 21 can be mounted between the finger bars 4 by engaging the engaging pieces 24 with the corresponding engaged parts 20.
【００１５】以下に、上記実施例における作用を説明す
る。フォーク21側の荷重により、上位のガイドローラ８
は前部のガイド面３Ａに当接され、また下位のガイドロ
ーラ９は後部のガイド面２Ａに当接されている。このと
き当接部材13は、小さな隙間Ａを置いて前面１Ａに対向
されるか、軽く接触されている。この状態で駆動チェー
ン12を昇降作動させることにより、上位のガイドローラ
８が前部のガイド面３Ａ上で転動され、かつ下位のガイ
ドローラ９が後部のガイド面２Ａ上で転動され、以てリ
フトブラケット５側は内枠１に案内されて昇降される。
このとき当接部材13は、前面１Ａとの間の隙間Ａまたは
接触を保った状態で昇降される。The operation of the above embodiment will be described below. Due to the load on the fork 21 side, the upper guide roller 8
Is in contact with the front guide surface 3A, and the lower guide roller 9 is in contact with the rear guide surface 2A. At this time, the contact member 13 is opposed to the front surface 1A with a small gap A or is in light contact with the front surface 1A. By raising and lowering the drive chain 12 in this state, the upper guide roller 8 rolls on the front guide surface 3A and the lower guide roller 9 rolls on the rear guide surface 2A. The lift bracket 5 side is guided up and down by the inner frame 1.
At this time, the contact member 13 is moved up and down while maintaining the gap A or contact with the front surface 1A.
【００１６】そして走行時など車両が振動すると、下位
のガイドローラ９の後部のガイド面２Ａへの当接部を支
点Ｂとして、リフトブラケット５が前後に揺動しようと
するが、このとき前面１Ａに当接部材13が当接して、そ
れ以上にリフトブラケット５が後方へ揺動することを阻
止し得る。これにより上位のガイドローラ８は後方へ殆
ど動かないことから、後部のガイド面２Ａに衝突せず、
騒音（打音）は発生しない。When the vehicle vibrates during traveling, the lift bracket 5 tries to swing back and forth with the contact portion of the rear portion of the lower guide roller 9 with the guide surface 2A as the fulcrum B, but at this time, the front surface 1A. The abutting member 13 abuts against the abutment member, and it is possible to prevent the lift bracket 5 from swinging rearward further. As a result, since the upper guide roller 8 hardly moves backward, it does not collide with the rear guide surface 2A,
No noise (tapping sound) is generated.
【００１７】内枠１の前面１Ａは、ガイドローラ８，９
やサイドローラ10が転動しないことから、すなわち大き
な力を受けないことから剥離は発生せず、段差、バリ、
返り、金属粉なども発生しない。したがって、このよう
に奇麗な前面１Ａに対して当接部材13は、隙間Ａを保っ
た状態で昇降されるか、小さい摩擦力で摺接されること
になり、以て摩耗や変形などが発生し難くなり、寿命の
長いものになる。The front surface 1A of the inner frame 1 has guide rollers 8 and 9.
Since the side rollers 10 do not roll, that is, they do not receive a large force, peeling does not occur, and steps, burrs,
No return or metal powder is generated. Therefore, the abutting member 13 is moved up and down while maintaining the clearance A or slidably contacted with the clean front surface 1A with a small frictional force, which causes wear and deformation. It becomes difficult to do and has a long life.
【００１８】長期間の使用により当接部材13が摩損した
とき、ナット体17を緩めたのちねじ体15を回転操作する
ことで、当接部材13を前面１Ａに対して突出調整し得
る。そして当接部材13は最少数を配設すればよいことか
ら、構造が簡単にかつ安価になり、さらに突出調整も容
易に行える。When the contact member 13 is worn due to long-term use, the nut member 17 is loosened and then the screw member 15 is rotated to adjust the protrusion of the contact member 13 with respect to the front surface 1A. Since the minimum number of contact members 13 needs to be provided, the structure is simple and inexpensive, and the protrusion can be adjusted easily.
【００１９】上記実施例では、第１部材として内枠１を
第２部材としてリフトブラケット５を示したが、これは
第１部材が外枠でかつ第２部材が内枠１であってもよ
い。また上記実施例では、当接部材13として樹脂製の円
板体を示したが、これはローラやスプリングなど他のも
のであってもよい。In the above embodiment, the inner frame 1 is used as the first member and the lift bracket 5 is used as the second member. However, the first member may be the outer frame and the second member may be the inner frame 1. . Further, in the above-described embodiment, the disk member made of resin is shown as the contact member 13, but this may be another member such as a roller or a spring.
【００２０】[0020]
【発明の効果】上記構成の本発明によると、車両振動に
より、下位のガイドローラの後部のガイド面への当接部
を支点として、第２部材が前後に揺動しようとしたと
き、前面に当接部材が当接して、それ以上に第２部材が
後方へ揺動することを阻止でき、これにより上位のガイ
ドローラは後方へ殆ど動かないことから、後部のガイド
面に衝突せず、騒音（打音）の発生を防止できる。According to the present invention having the above-described structure, when the second member tries to swing back and forth with the contact portion of the rear portion of the lower guide roller to the guide surface serving as a fulcrum due to vehicle vibration, the second member is moved forward. It is possible to prevent the second member from swinging rearward further due to the contact of the contact member, and the upper guide roller hardly moves rearward. Therefore, the upper guide roller does not collide with the rear guide surface, and noise does not occur. (Tapping sound) can be prevented.
【００２１】そして第１部材の前面は、剥離や、段差、
バリ、返り、金属粉などの発生しない奇麗な面にでき、
こような前面に対して作用する当接部材は、摩耗や変形
などを発生し難く、寿命の長いものにできて、長期間に
亘って好適に使用できる。また長期間の使用により摩損
した当接部材は、前面に対して突出調整できるととも
に、最少数でよいことから構造を簡単にかつ安価に提供
でき、さらに突出調整は容易に行うことができる。The front surface of the first member has peeling, a step,
It can be made a beautiful surface that does not generate burrs, return, metal powder, etc.
Such a contact member acting on the front surface is less likely to be worn or deformed, has a long life, and can be suitably used for a long period of time. Further, the abutting member that has been worn down for a long period of time can be adjusted in protrusion with respect to the front surface, and since the minimum number is required, the structure can be provided easily and inexpensively, and the protrusion can be adjusted easily.
【図１】本発明の一実施例を示し、フォークリフト車の
騒音防止装置における一部切欠き側面図である。FIG. 1 is a partially cutaway side view of a noise suppression device for a forklift truck according to an embodiment of the present invention.
【図２】同フォークリフト車の騒音防止装置における一
部切欠き平面図である。FIG. 2 is a partially cutaway plan view of the noise suppression device for the forklift truck.
【図３】同フォークリフト車の騒音防止装置における要
部の一部切欠き側面図である。FIG. 3 is a partially cutaway side view of a main part of the noise suppression device for the forklift truck.
１ 内枠（第１部材） １Ａ 前面 ２Ａ ガイド面 ３Ａ ガイド面 ４ フィンガーバ ５ リフトブラケット（第２部材） ８ 上位のガイドローラ ９ 下位のガイドローラ 12 駆動チェーン 13 当接部材 15 ねじ体 16 ねじ孔 20 被係合部 21 フォーク Ａ 隙間 Ｂ 支点 1 Inner frame (1st member) 1A Front face 2A Guide surface 3A Guide surface 4 Finger bar 5 Lift bracket (2nd member) 8 Upper guide roller 9 Lower guide roller 12 Drive chain 13 Contact member 15 Screw body 16 Screw hole 20 Engaged part 21 Fork A Gap B Support point
Claims (1)
１部材に、両ガイド面に対向する上下複数個のガイドロ
ーラを介して昇降自在な第２部材を取り付け、この第２
部材側に、第１部材の前面に対向する当接部材を、前面
に対して位置調整自在に設けたことを特徴とするフォー
クリフト車の騒音防止装置。1. A first member having a pair of front and rear guide surfaces formed therein is provided with a second member which is vertically movable via a plurality of upper and lower guide rollers facing the both guide surfaces.
A noise suppression device for a forklift truck, comprising a contact member facing the front surface of the first member, the position of which is adjustable relative to the front surface on the member side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24897894A JPH08113490A (en) | 1994-10-14 | 1994-10-14 | Noise preventing device of forklift truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24897894A JPH08113490A (en) | 1994-10-14 | 1994-10-14 | Noise preventing device of forklift truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08113490A true JPH08113490A (en) | 1996-05-07 |
Family
ID=17186218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24897894A Withdrawn JPH08113490A (en) | 1994-10-14 | 1994-10-14 | Noise preventing device of forklift truck |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08113490A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006143389A (en) * | 2004-11-19 | 2006-06-08 | Tcm Corp | Looseness suppressing device for carriage |
| JP2009126593A (en) * | 2007-11-20 | 2009-06-11 | Tcm Corp | Reach type forklift |
| JP2009196721A (en) * | 2008-02-19 | 2009-09-03 | Tcm Corp | Reach forklift truck |
-
1994
- 1994-10-14 JP JP24897894A patent/JPH08113490A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006143389A (en) * | 2004-11-19 | 2006-06-08 | Tcm Corp | Looseness suppressing device for carriage |
| JP2009126593A (en) * | 2007-11-20 | 2009-06-11 | Tcm Corp | Reach type forklift |
| JP2009196721A (en) * | 2008-02-19 | 2009-09-03 | Tcm Corp | Reach forklift truck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020115 |