JP2714702B2 - Carrier self-propelled conveyor - Google Patents

Carrier self-propelled conveyor

Info

Publication number
JP2714702B2
JP2714702B2 JP1341914A JP34191489A JP2714702B2 JP 2714702 B2 JP2714702 B2 JP 2714702B2 JP 1341914 A JP1341914 A JP 1341914A JP 34191489 A JP34191489 A JP 34191489A JP 2714702 B2 JP2714702 B2 JP 2714702B2
Authority
JP
Japan
Prior art keywords
carrier
inter
trolley
vehicle distance
self
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 - Fee Related
Application number
JP1341914A
Other languages
Japanese (ja)
Other versions
JPH03195623A (en
Inventor
堯雄 若林
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.)
Nakanishi Metal Works Co Ltd
Original Assignee
Nakanishi Metal Works Co Ltd
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 Nakanishi Metal Works Co Ltd filed Critical Nakanishi Metal Works Co Ltd
Priority to JP1341914A priority Critical patent/JP2714702B2/en
Publication of JPH03195623A publication Critical patent/JPH03195623A/en
Application granted granted Critical
Publication of JP2714702B2 publication Critical patent/JP2714702B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Landscapes

  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Control Of Position Or Direction (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Automatic Assembly (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Control Of Conveyors (AREA)

Description

【発明の詳細な説明】 産業上の利用分野 この発明は、たとえば自動車の組立ラインなどで使用
されるキャリヤ自走式コンベヤに関する。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carrier self-propelled conveyor used in, for example, an automobile assembly line.

従来の技術および発明の課題 自動車の組立ラインで使用されるキャリヤ自走式コン
ベヤとして、レールなどを備えた所定の軌道に沿って前
後複数の自走キャリヤが等しい車両間隔をおいて走行す
るものが知られている。
2. Description of the Related Art As a carrier self-propelled conveyor used in an automobile assembly line, a plurality of front and rear self-propelled carriers travel at equal vehicle intervals along a predetermined track provided with rails and the like. Are known.

自動車の組立ラインにおいては、1つの流れ作業ライ
ンに異なる車種を混在させるいわゆる混流生産が行なわ
れることがあり、この場合、車種によって1工程に要す
る作業時間が異なることがある。ところが、従来のキャ
リヤ自走式コンベヤでは、全てのキャリヤの車間距離が
等しく、しかもこれを変えることができないので、車種
の違いによって起こる作業時間のばらつきを調整するこ
とができない。このため、従来は、最も作業時間の長い
車種に合わせて全ての車間距離を長く設定しており、し
たがって、全体の作業能率が低下するという問題があっ
た。
In an automobile assembly line, so-called mixed production in which different types of vehicles are mixed in one assembly line may be performed, and in this case, the work time required for one process may differ depending on the type of vehicle. However, in the conventional carrier self-propelled conveyor, the inter-vehicle distances of all the carriers are equal and cannot be changed, so that it is not possible to adjust the variation in the working time caused by the difference of the vehicle type. For this reason, conventionally, all inter-vehicle distances are set to be long according to the type of vehicle that requires the longest working time, and thus there has been a problem that the overall working efficiency is reduced.

この発明の目的は、上記の問題を解決したキャリヤ自
走式コンベヤを提供することにある。
An object of the present invention is to provide a carrier self-propelled conveyor that solves the above-mentioned problems.

課題を解決するための手段 この発明によるキャリヤ自走式コンベヤは、 所定の軌道に沿って走行する前後複数の自走キャリヤ
を備え、先行のキャリヤの後部と後続のキャリヤの前部
の一方に車間距離制御用被検出部材が設けられ、同他方
に上記被検出部材を検出することによって前後のキャリ
ヤの車間距離を制御する車間距離制御手段のセンサが設
けられているキャリヤ自走式コンベヤにおいて、 キャリヤが、相対的に前後方向に移動して前後方向の
相対位置の調整が可能な前側部分と後側部分とからな
り、前記前側部分の前部と上記後側部分の後部の一方に
上記被検出部材が設けられ、同他方に上記車間距離制御
手段のセンサが設けられているものである。
Means for Solving the Problems A carrier self-propelled conveyor according to the present invention includes a plurality of front and rear self-propelled carriers that travel along a predetermined track, and has a rear space between one of a rear portion of a preceding carrier and a front portion of a subsequent carrier. In a carrier self-propelled conveyor, a distance control detected member is provided, and a sensor of inter-vehicle distance control means for controlling the inter-vehicle distance between front and rear carriers by detecting the detected member is provided on the other side. Has a front portion and a rear portion that can be relatively moved in the front-rear direction and the relative position in the front-rear direction can be adjusted, and the detected portion is provided on one of the front portion of the front portion and the rear portion of the rear portion. A member is provided, and a sensor of the inter-vehicle distance control means is provided on the other side.

作用 キャリヤの前側部分と後側部分との前後方向の相対位
置を調整することにより、車間距離制御用被検出部材と
車間距離制御手段のセンサとの前後間隔が大きく変わ
る。したがって、キャリヤごとに、後続のキャリヤとの
車間距離を大きく変えることが可能になる。
Action By adjusting the relative position of the front and rear portions of the carrier in the front-rear direction, the front-rear distance between the detected member for inter-vehicle distance control and the sensor of the inter-vehicle distance control means changes greatly. Therefore, it is possible to greatly change the inter-vehicle distance with a subsequent carrier for each carrier.

実 施 例 以下、図面を参照して、この発明の実施例を説明す
る。
Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

第1図および第2図は、自動車の組立ラインに設けら
れた床形のキャリヤ自走式コンベヤの一部を示す。
1 and 2 show a part of a floor-type carrier self-propelled conveyor provided on an automobile assembly line.

コンベヤには、床(1)に設けられた所定の軌道
(2)に沿って走行する前後複数の自走キャリヤ(3)
が設けられ、これらのキャリヤ(3)が自動車の車体
(A)を搭載して第1図および第2図の矢印方向に自走
する。なお、以下の説明において、前後左右はキャリヤ
(3)の進行方向についていうものとする。
The conveyor has a plurality of self-propelled carriers (3) before and after traveling along a predetermined track (2) provided on the floor (1).
These carriers (3) are mounted on the vehicle body (A) of the automobile and run in the direction of the arrow in FIGS. 1 and 2. In the following description, front, rear, left and right refer to the traveling direction of the carrier (3).

軌道(2)およびキャリヤ(3)の詳細が、第3図〜
第6図に示されている。なお、第1図および第2図に
は、軌道(2)の一部を省略して示している。
The details of the track (2) and the carrier (3) are shown in Figs.
This is shown in FIG. 1 and 2, a part of the track (2) is omitted.

軌道(2)は、次のように、床(1)に形成されたみ
ぞ(4)に設けられている。
The track (2) is provided in a groove (4) formed in the floor (1) as follows.

みぞ(4)内の床(1)より下方に、断面コ字形のレ
ール(5)が設けられ、このレール(5)の上側フラン
ジ(5a)の側縁部下面に断面方形の上部ガイド部材
(6)が、下側フランジ(5b)の側縁部上面に同様の下
部ガイド部材(7)がそれぞれ固定されている。みぞ
(4)内のレール(5)の左右両側に、前後複数の支柱
(8)が設けられ、レール(5)と平行に前後方向にの
びる左右1対のキャスタ受け部材(9)がこれらの支柱
(8)の上端に支持されている。受け部材(9)の上面
は床(1)とほぼ一面になっている。みぞ(4)の上部
は床(1)とほぼ面一の蓋(10)で覆われており、蓋
(1)の左右方向の中間部に、レール(5)と平行に前
後方向にのびるスリット状の開口(11)が設けられてい
る。図示は省略したが、レール(5)のウェブ(5c)の
内側の面に、複数の給電レールが設けられている。
A rail (5) having a U-shaped cross section is provided below the floor (1) in the groove (4), and an upper guide member (R) having a rectangular cross section is provided on the lower surface of the side edge of the upper flange (5a) of the rail (5). 6), similar lower guide members (7) are fixed to the upper surface of the side edge of the lower flange (5b). A plurality of front and rear columns (8) are provided on both left and right sides of the rail (5) in the groove (4), and a pair of left and right caster receiving members (9) extending in the front and rear direction parallel to the rail (5) are provided. It is supported on the upper end of the column (8). The upper surface of the receiving member (9) is substantially flush with the floor (1). The upper part of the groove (4) is covered with a lid (10) which is almost flush with the floor (1), and a slit extending in the front-rear direction parallel to the rail (5) at the middle part of the lid (1) in the left-right direction. An opening (11) is provided. Although not shown, a plurality of power supply rails are provided on the inner surface of the web (5c) of the rail (5).

キャリヤ(3)は、前側部分(12)と後側部分(13)
とに分けられている。前側部分(12)は、軌道(2)の
受け部材(9)上を走行する台車(14)、ならびに台車
(14)に連結されてレール(5)に沿って走行する先頭
トロリ(15)、駆動トロリ(16)および第1中間トロリ
(17)より構成されている。後側部分(13)は、台車
(14)に前後移動可能に取付けられてこれとともに軌道
(2)上を走行するデッキ(18)、ならびにデッキ(1
8)に連結されてレール(5)に沿って走行する第2中
間トロリ(19)および後端トロリ(20)より構成されて
いる。
The carrier (3) consists of a front part (12) and a rear part (13)
And is divided into The front part (12) includes a truck (14) running on the receiving member (9) of the track (2), and a leading trolley (15) connected to the truck (14) and running along the rail (5); It comprises a drive trolley (16) and a first intermediate trolley (17). The rear part (13) is mounted on the trolley (14) so as to be able to move back and forth, and the deck (18) that travels on the track (2) together with the deck (1).
It is composed of a second intermediate trolley (19) and a rear end trolley (20) that are connected to 8) and run along the rail (5).

台車(14)は前後方向に長くて背の低い中空箱形をな
し、その前後左右の4箇所に受け部材(9)上を転動す
るキャスタ(21)を備えている。台車(14)の前後方向
中間部の左右両側縁部に、車体(A)を受ける台(22)
が設けられている。また、台車(14)の頂板(14a)の
上に人がのれるようになっている。
The cart (14) has a hollow box shape that is long and short in the front-rear direction, and is provided with casters (21) that roll on the receiving member (9) at four positions on the front, rear, left and right. A stand (22) for receiving the vehicle body (A) at the left and right side edges of the middle part in the longitudinal direction of the carriage (14)
Is provided. Also, a person can be put on the top plate (14a) of the cart (14).

第3図に詳細に示すように、第1中間トロリ(17)は
軌道(2)の蓋(10)の開口(11)の部分を通って台車
(14)の後寄りの部分の底板(14b)に連結されてい
る。このトロリ(17)は前後方向から見て幅L字形をな
し、その一部がレール(5)の上下のガイド部材(6)
(7)の間に進入している。そして、この部分に垂直軸
を中心に旋回しうる旋回部材(23)が取付けられてお
り、この旋回部材(23)に、上部ガイド部材(6)を左
右両側から挾む前後複数の上部水平ローラ(24)が設け
られている。
As shown in detail in FIG. 3, the first intermediate trolley (17) passes through the opening (11) of the lid (10) of the track (2) and the bottom plate (14b) of the rearward portion of the bogie (14). ). The trolley (17) has an L-shape when viewed from the front and rear, and a part thereof is a guide member (6) above and below the rail (5).
It has entered during (7). A swivel member (23) that can swivel about a vertical axis is attached to this portion. A plurality of front and rear upper horizontal rollers sandwiching the upper guide member (6) from both left and right sides are mounted on the swivel member (23). (24) is provided.

駆動トロリ(16)は軌道(2)の蓋(10)の開口(1
1)の部分を通って台車(14)の前寄りの部分の底板(1
4b)に連結されており、第1中間トロリ(17)と同様、
旋回部材(25)および上部水平ローラ(26)を備えてい
る。
The drive trolley (16) is connected to the opening (1) of the lid (10) of the track (2).
Through the part of 1), the bottom plate (1
4b) and, like the first intermediate trolley (17),
It has a revolving member (25) and an upper horizontal roller (26).

駆動トロリ(16)の前端部に連結部材(27)の後端部
が垂直軸を中心に回動できるように連結され、この連結
部材(27)の前端部に先頭トロリ(15)の後端部が垂直
軸を中心に回動できるように連結されている。第5図お
よび第6図に詳細に示すように、先頭トロリ(15)は、
垂直軸を中心に旋回しうる旋回部材(28)、レール
(5)の上部ガイド部材(6)を左右両側から挾む前後
複数の上部水平ローラ(29)、下部ガイド部材(7)を
左右両側から挾む下部水平ローラ(30)および下部ガイ
ド部材(7)上を転動する前後複数の垂直ローラ(31)
を備えている。
The rear end of the connecting member (27) is connected to the front end of the driving trolley (16) so as to be rotatable about a vertical axis, and the rear end of the leading trolley (15) is connected to the front end of the connecting member (27). The parts are connected so as to be rotatable about a vertical axis. As shown in detail in FIGS. 5 and 6, the leading trolley (15)
A turning member (28) capable of turning around a vertical axis, a plurality of front and rear upper horizontal rollers (29) sandwiching an upper guide member (6) of a rail (5) from right and left sides, and a lower guide member (7) on both right and left sides. A plurality of vertical rollers (31) before and after rolling on a lower horizontal roller (30) and a lower guide member (7) sandwiched between the rollers.
It has.

デッキ(18)は水平板状をなし、台車(14)内の底板
(14b)のすぐ上に配置されている。デッキ(18)の左
右両側縁に下方に折れ曲った背の低い垂直壁(18a)が
形成されている。デッキ(18)の左右両側部の下面が台
車(14)の底板(14b)の左右両側に設けられた前後複
数の垂直ガイドローラ(32)に受けられるとともに、両
側の垂直壁(18a)の外側面が台車(14)の両側の垂直
仕切板(14c)に取付けられた前後複数の水平ガイドロ
ーラ(33)に接触しており、これらのローラ(32)(3
3)に案内されてデッキ(18)が台車(14)に対し前後
方向に移動しうるようになっている。台車(14)の前部
にボールねじ駆動モータ(34)が設けられるとともに、
後部に軸受(35)が設けられており、前後方向にのびる
ボールねじ(36)の前端部がモータ(34)に連結され、
後端部が軸受(35)に受けられている。また、デッキ
(18)の前部上面に、ボールねじ(36)がねじはめられ
たボールナット(37)が固定されている。そして、モー
タ(34)でボールねじ(36)を回転させることにより、
デッキ(18)が台車(14)内に完全に入る前端位置(第
1図および第2図に示す位置)と台車(14)から後方に
長く突出する後端位置(第7図および第8図に示す位
置)との間を前後方向に移動させられる。
The deck (18) is in the form of a horizontal plate and is disposed in the carriage (14) immediately above the bottom plate (14b). Short vertical walls (18a) bent downward are formed on both left and right edges of the deck (18). The lower surfaces of the left and right sides of the deck (18) are received by a plurality of front and rear vertical guide rollers (32) provided on the left and right sides of the bottom plate (14b) of the bogie (14), and the outside of the vertical walls (18a) on both sides. The side surface is in contact with a plurality of front and rear horizontal guide rollers (33) attached to vertical partition plates (14c) on both sides of the trolley (14), and these rollers (32) (3
Guided by 3), the deck (18) can move in the front-rear direction with respect to the cart (14). A ball screw drive motor (34) is provided at the front of the cart (14),
A bearing (35) is provided at the rear, and the front end of a ball screw (36) extending in the front-rear direction is connected to the motor (34).
The rear end is received by the bearing (35). A ball nut (37) in which a ball screw (36) is screwed is fixed to the front upper surface of the deck (18). Then, by rotating the ball screw (36) with the motor (34),
The front end position (the position shown in FIGS. 1 and 2) where the deck (18) completely enters the carriage (14) and the rear end position (FIGS. 7 and 8) which protrude backward from the carriage (14). (Position shown in FIG. 2) in the front-rear direction.

第4図に詳細に示すように、第2中間トロリ(19)
は、軌道(2)の蓋(10)の開口(11)の部分を通っ
て、デッキ(18)の後部下面に前後方向には移動しない
が左右方向には移動しうるように連結されている。な
お、台車(14)の底板(14b)の後部には、デッキ(1
8)が前端位置に移動したときに第2中間トロリ(19)
と干渉しないように、切欠き(38)が形成されている。
このトロリ(19)は、先頭トロリ(15)と同様、旋回部
材(39)、前後複数の上部水平ローラ(40)、下部水平
ローラ(41)および垂直ローラ(42)を備えている。
As shown in detail in FIG. 4, a second intermediate trolley (19)
Is connected to the lower surface of the rear portion of the deck (18) through the opening (11) of the lid (10) of the track (2) so as not to move in the front-rear direction but to move in the left-right direction. . The deck (1) is located behind the bottom plate (14b) of the trolley (14).
8) When the second intermediate trolley (19) moves to the front end position
Notches (38) are formed so as not to interfere with
The trolley (19) includes a revolving member (39), a plurality of front and rear upper horizontal rollers (40), a lower horizontal roller (41), and a vertical roller (42), like the leading trolley (15).

第2中間トロリ(19)の後端部に連結部材(43)の前
端部が垂直軸を中心に回動できるように連結され、この
連結部材(43)の後端部に後端トロリ(20)の前端部が
垂直軸を中心に回動できるように連結されている。後端
トロリ(20)は、先頭トロリ(15)と同様、旋回部材
(44)、前後複数の上部水平ローラ(45)、下部水平ロ
ーラ(46)および垂直ローラ(47)を備えている。
The front end of the connecting member (43) is connected to the rear end of the second intermediate trolley (19) so as to be rotatable about a vertical axis, and the rear end of the connecting member (43) is connected to the rear end of the connecting trolley (20). ) Is connected so as to be rotatable about a vertical axis. The rear end trolley (20) includes a revolving member (44), a plurality of front and rear upper horizontal rollers (45), a lower horizontal roller (46), and a vertical roller (47), like the front trolley (15).

デッキ(18)の重量は、台車(14)と第2中間トロリ
(19)で支持されている。そして、前述のようにデッキ
(18)が台車(14)に対して前後方向に移動すると、こ
れとともに第2中間トロリ(19)および後端トロリ(2
0)も前後方向に移動し、これによってキャリヤ(3)
の全長が変わるようになっている。図示は省略したが、
キャリヤ(3)にはモータ(34)の駆動回路とスイッチ
などが設けられており、スイッチ操作により、キャリヤ
(3)の全長が無段階に調整できるようになっている。
また、デッキ(18)が後方に移動したときにその上に人
がのれるようになっている。
The weight of the deck (18) is supported by the cart (14) and the second intermediate trolley (19). As described above, when the deck (18) moves in the front-rear direction with respect to the bogie (14), the second intermediate trolley (19) and the rear end trolley (2)
0) also moves in the front-rear direction, whereby the carrier (3)
The total length has changed. Although illustration is omitted,
The carrier (3) is provided with a drive circuit for the motor (34), a switch, and the like. By operating the switch, the total length of the carrier (3) can be adjusted steplessly.
Also, when the deck (18) moves backward, a person can ride on it.

図示は省略したが、駆動トロリ(16)は駆動モータと
これによって駆動される駆動ローラを備えており、この
駆動トロリ(16)によりキャリヤ(3)全体が軌道
(2)に沿って自走する。
Although not shown, the drive trolley (16) includes a drive motor and a drive roller driven by the drive trolley, and the entire carrier (3) runs along the track (2) by the drive trolley (16). .

後端トロリ(20)の後端に、後方に水平に突出した水
平板状の車間距離制御用被検出部材(48)が固定されて
いる。被検出部材(48)は扇形をなし、その左右幅は後
方にいくにつれて徐々に広くなっている。後端トロリ
(20)はデッキ(18)より後方に位置し、第1図および
第2図のようにデッキ(18)が前端位置まで前進しても
被検出部材(48)が台車(14)より後方に突出するよう
になっている。
At the rear end of the rear end trolley (20), a detected member (48) for controlling the following distance, which is a horizontal plate and protrudes horizontally rearward, is fixed. The detected member (48) has a fan shape, and its left-right width gradually increases toward the rear. The rear end trolley (20) is located behind the deck (18), and even if the deck (18) moves forward to the front end position as shown in FIGS. It protrudes more backward.

先頭トロリ(15)の前端に、台車(14)の前端近くま
で前方に水平に突出した上下二股状の光電スイッチ支持
部材(49)が固定されており、この支持部材(49)に、
前後3組の光電スイッチ(センサ)、すなわち、前側の
第1光電スイッチ(50)、中央の第2光電スイッチ(5
1)および後側の第3光電スイッチ(52)が設けられて
いる。第6図に詳細に示すように、光電スイッチ(50)
(51)(52)は、支持部材(49)の上板(49a)に固定
されて下側にビーム光を照射する投光部(50a)(51a)
(52a)と、下板(49b)に固定されて投光部(50a)(5
1a)(52a)からのビーム光を検知する受光部(50b)
(51b)(52b)とを有し、投光部(50a)(51a)(52
a)と受光部(50b)(51b)(52b)の間が遮断されてい
る場合はオフ、遮断されていない場合はオンになる。被
検出部材(48)は電光スイッチ支持部材(49)の上板
(49a)と下板(49b)の中間の高さに位置し、これらの
間すなわち光電スイッチ(50)(51)(52)の投光部
(50a)(51a)(52a)と受光部(50b)(51b)(52b)
の間に入り込むようになっている。そして、被検出部材
(48)が支持部材(49)の上板(49a)と下板(49b)の
間に入り込むと、被検出部材(48)の後端より前にある
光電スイッチ(50)(51)(52)が遮断されてオフにな
る。図示は省略したが、キャリヤ(3)には、光電スイ
ッチ(50)(51)(52)の出力に基づいて後述するよう
にキャリヤ(3)の速度を制御する速度制御装置が設け
られており、これらによって車間距離制御手段が構成さ
れている。
At the front end of the leading trolley (15), a bifurcated upper and lower bifurcated photoelectric switch supporting member (49) protruding horizontally forward to near the front end of the bogie (14) is fixed.
The front and rear three sets of photoelectric switches (sensors), that is, the first photoelectric switch (50) on the front side and the second photoelectric switch (5
1) and a third photoelectric switch (52) on the rear side. As shown in detail in FIG. 6, the photoelectric switch (50)
(51) and (52) are light emitting units (50a) (51a) fixed to the upper plate (49a) of the support member (49) and irradiating the light beam downward.
(52a) and fixed to the lower plate (49b)
1a) Light receiving unit (50b) that detects light beam from (52a)
(51b) and (52b), and the light emitting sections (50a) (51a) (52
It turns off when a) and the light receiving units (50b), (51b), and (52b) are shut off, and turns on when it is not shut off. The detected member (48) is located at an intermediate height between the upper plate (49a) and the lower plate (49b) of the electro-optical switch support member (49). Light-emitting parts (50a) (51a) (52a) and light-receiving parts (50b) (51b) (52b)
Between the two. When the detected member (48) enters between the upper plate (49a) and the lower plate (49b) of the support member (49), the photoelectric switch (50) located before the rear end of the detected member (48). (51) and (52) are cut off and turned off. Although not shown, the carrier (3) is provided with a speed control device for controlling the speed of the carrier (3) based on the outputs of the photoelectric switches (50), (51) and (52) as described later. These constitute an inter-vehicle distance control means.

上記のコンベヤにおいて、後続キャリヤ(3)は、走
行中、光電スイッチ(50)(51)(52)の出力を監視し
ており、次のようにして、先行キャリヤ(3)と車間距
離を所望の設定範囲に制御する。
In the above-mentioned conveyor, the succeeding carrier (3) monitors the output of the photoelectric switches (50), (51), (52) during traveling, and determines the distance between the preceding carrier (3) and the vehicle in the following manner. Is controlled within the setting range.

まず、3つの電光スイッチ(50)(51)(52)が全て
オンであれば、先行キャリヤ(3)の被検出部材(48)
の後端が第1光電スイッチ(50)よりも前にあって、車
間距離が設定範囲より大きすぎるので、キャリヤ(3)
を予め設定された速度(設定速度)より増速して車間距
離が小さくなるようにする。
First, if all three lightning switches (50), (51), (52) are on, the detected member (48) of the preceding carrier (3)
The rear end of the carrier (3) is located in front of the first photoelectric switch (50) and the inter-vehicle distance is too large than the set range.
Is increased from a preset speed (set speed) so as to reduce the inter-vehicle distance.

第5図および第6図のように、第1光電スイッチ(5
0)がオフになって、第2光電スイッチ(51)がオンで
あれば、先行キャリヤ(3)の被検出部材(48)の後端
が第1光電スイッチ(50)と第2光電スイッチ(51)の
間にあって、車間距離が設定範囲内にあるので、キャリ
ヤ(3)を設定速度で走行させて車間距離が変わらない
ようにする。
As shown in FIGS. 5 and 6, the first photoelectric switch (5
0) is off and the second photoelectric switch (51) is on, the rear ends of the detected members (48) of the preceding carrier (3) are the first photoelectric switch (50) and the second photoelectric switch (51). Since the inter-vehicle distance is within the set range between 51), the carrier (3) is driven at the set speed to keep the inter-vehicle distance unchanged.

第2光電スイッチ(51)がオフになって、第3光電ス
イッチ(52)がオンであれば、先行キャリヤ(3)の被
検出部材(48)の後端が第2光電スイッチ(51)と第3
光電スイッチ(52)の間にあって、車間距離が設定範囲
より小さすぎるので、キャリヤ(3)を設定速度より減
速して車間距離が大きくなるようにする。
If the second photoelectric switch (51) is off and the third photoelectric switch (52) is on, the rear end of the detected member (48) of the preceding carrier (3) is connected to the second photoelectric switch (51). Third
Since the inter-vehicle distance is between the photoelectric switches (52) is smaller than the set range, the carrier (3) is decelerated from the set speed to increase the inter-vehicle distance.

第3光電スイッチ(52)がオフになると、先行キャリ
ヤ(3)の被検出部材(48)の後端が第3光電スイッチ
(52)よりも後にあって、車間距離が非常に小さくなっ
ているので、キャリヤ(2)を停止する。
When the third photoelectric switch (52) is turned off, the rear end of the detected member (48) of the preceding carrier (3) is located behind the third photoelectric switch (52), and the inter-vehicle distance is very small. Therefore, the carrier (2) is stopped.

このように後続キャリヤ(3)の速度制御を行なうこ
とにより、前後のキャリヤ(3)の車間距離が、第1光
電スイッチ(50)だけがオフになる所望の設定範囲内に
保たれる。
By controlling the speed of the subsequent carrier (3) in this manner, the inter-vehicle distance between the front and rear carriers (3) is maintained within a desired setting range in which only the first photoelectric switch (50) is turned off.

また、上記のコンベヤでは、次のように、キャリヤ
(3)ごとに、その全長を調整することにより、後続キ
ャリヤ(3)との車間距離を変えることができる。
Further, in the above-described conveyor, the inter-vehicle distance to the subsequent carrier (3) can be changed by adjusting the overall length of each carrier (3) as follows.

すなわち、第7図および第8図に示すように、デッキ
(18)を後方に移動してキャリヤ(3)の全長を長くす
ると、光電スイッチ(50)(51)(52)と被検出部材
(48)の前後間隔が長くなって、後続キャリヤ(3)と
の車間距離は大きくなる。逆に、第1図および第2図に
示すように、デッキ(18)を前方に移動してキャリヤ
(3)の全長を短くすると、光電スイッチ(50)(51)
(52)と被検出部材(48)の前後間隔が短くなって、後
続キャリヤ(3)との車間距離は小さくなる。
That is, as shown in FIGS. 7 and 8, when the deck (18) is moved backward to increase the total length of the carrier (3), the photoelectric switches (50), (51), (52) and the detected member ( The distance before and after 48) becomes longer, and the inter-vehicle distance to the succeeding carrier (3) increases. Conversely, as shown in FIGS. 1 and 2, when the deck (18) is moved forward to shorten the length of the carrier (3), the photoelectric switches (50) and (51)
The front-back distance between (52) and the detected member (48) is reduced, and the inter-vehicle distance to the subsequent carrier (3) is reduced.

このようなキャリヤ(3)ごとの車間距離の調整は、
たとえば組立ラインにおいて最初に車体(A)を搭載し
たときに、その種類に応じて行なわれる。すなわち、作
業時間の長い車体(A)を搭載したキャリヤ(3)につ
いては、後続キャリヤ(3)との車間距離が長くなるよ
うに全長を長くし、作業時間の短い車体(A)を搭載し
たキャリヤ(3)については、後続キャリヤ(3)との
車間距離が短くなるように全長を短くする。そして、こ
のように作業時間に応じて車間距離を調整することによ
り、作業者は一定のピッチで作業を進めることができ、
しかも、従来のように車間距離を一様に長くすることに
よる作業能率の低下もない。
Such adjustment of the inter-vehicle distance for each carrier (3)
For example, when the vehicle body (A) is first mounted on the assembly line, the operation is performed according to the type. That is, with respect to the carrier (3) equipped with the vehicle body (A) having a long working time, the overall length is increased so that the inter-vehicle distance with the subsequent carrier (3) is increased, and the vehicle body (A) having a short working time is mounted. The overall length of the carrier (3) is shortened so that the inter-vehicle distance with the succeeding carrier (3) is shortened. By adjusting the inter-vehicle distance according to the working time in this way, the worker can work at a constant pitch,
In addition, there is no reduction in work efficiency due to the uniform increase in the inter-vehicle distance as in the related art.

この発明は、天井から支持された軌道に自走キャリヤ
が吊下げられた天井式(オーバーヘッド式)コンベヤに
も適用できる。
The present invention can also be applied to a ceiling type (overhead type) conveyor in which a self-propelled carrier is hung on a track supported from the ceiling.

キャリヤの前側部分及び後側部分の構成、これらを前
後方向に相対移動させる機構、車間距離制御用被検出部
材の構成、車間距離制御用のセンサの構成などは、上記
実施例のものに限らず、適宜変更可能である。
The configuration of the front side portion and the rear side portion of the carrier, the mechanism for relatively moving them in the front-rear direction, the configuration of the detected member for inter-vehicle distance control, the configuration of the sensor for inter-vehicle distance control, etc. are not limited to those of the above-described embodiment. Can be changed as appropriate.

発明の効果 この発明のキャリヤ自走式コンベヤによれば、上述の
ように、キャリヤごとに車間距離を大きく変えることが
可能になる。したがって、これを自動車組立ラインに適
用した場合、車種による作業時間のばらつきを調整し
て、能率の良い作業ができるようになる。
According to the carrier self-propelled conveyor of the present invention, the inter-vehicle distance can be largely changed for each carrier as described above. Therefore, when this is applied to an automobile assembly line, it is possible to adjust the variation of the operation time depending on the type of the vehicle and perform an efficient operation.

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

第1図はこの発明の実施例を示すキャリヤ自走式コンベ
ヤの自走キャリヤの部分切欠き平面図、第2図は同部分
切欠き側面図、第3図は第1図III−III線の拡大断面
図、第4図は第1図IV−IV線の拡大断面図、第5図は先
行キャリヤの後端トロリと後続キャリヤの先頭トロリの
部分を示す平面図、第6図は第5図VI−VI線の矢視図、
第7図は第1図と異なる状態を示す自走キャリヤ後部の
部分切欠き平面図、第8図は同部分切欠き側面図であ
る。 (2)……軌道、(3)……自走キャリヤ、(12)……
前側部分、(13)……後側部分、(48)……車間距離制
御用被検出部材、(50)(51)(52)……光電スイッチ
(センサ)。
FIG. 1 is a partially cutaway plan view of a self-propelled carrier of a carrier self-propelled conveyor showing an embodiment of the present invention, FIG. 2 is a side view of the partially cutaway carrier, and FIG. FIG. 4 is an enlarged sectional view taken along the line IV-IV of FIG. 1, FIG. 5 is a plan view showing a rear trolley of a preceding carrier and a leading trolley of a succeeding carrier, and FIG. 6 is FIG. VI-VI line view,
FIG. 7 is a partially cutaway plan view of the rear part of the self-propelled carrier showing a state different from that of FIG. 1, and FIG. 8 is a partially cutaway side view of the same. (2) ... orbit, (3) ... self-propelled carrier, (12) ...
Front portion, (13) Rear portion, (48) Detected member for inter-vehicle distance control, (50) (51) (52) Photoelectric switch (sensor).

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】所定の軌道に沿って走行する前後複数の自
走キャリヤを備え、先行のキャリヤの後部と後続のキャ
リヤの前部の一方に車間距離制御用被検出部材が設けら
れ、同他方に上記被検出部材を検出することによって前
後のキャリヤの車間距離を制御する車間距離制御手段の
センサが設けられているキャリヤ自走式コンベヤにおい
て、 キャリヤが、相対的に前後方向に移動して前後方向の相
対位置の調整が可能な前側部分と後側部分とからなり、
上記前側部分の前部と上記後側部分の後部の一方に上記
被検出部材が設けられ、同他方に上記車間距離制御手段
のセンサが設けられているキャリヤ自走式コンベヤ。
1. A vehicle comprising: a plurality of self-propelled carriers that travel along a predetermined track; and one of a rear part of a preceding carrier and a front part of a succeeding carrier is provided with a detection member for controlling a distance between vehicles, In the carrier self-propelled conveyor provided with a sensor of inter-vehicle distance control means for controlling the inter-vehicle distance between the front and rear carriers by detecting the detected member, the carrier relatively moves in the front-rear direction and It consists of a front part and a rear part that can adjust the relative position in the direction,
A carrier self-propelled conveyor in which the detected member is provided on one of a front portion of the front portion and a rear portion of the rear portion, and a sensor of the inter-vehicle distance control means is provided on the other.
JP1341914A 1989-12-26 1989-12-26 Carrier self-propelled conveyor Expired - Fee Related JP2714702B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1341914A JP2714702B2 (en) 1989-12-26 1989-12-26 Carrier self-propelled conveyor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1341914A JP2714702B2 (en) 1989-12-26 1989-12-26 Carrier self-propelled conveyor

Publications (2)

Publication Number Publication Date
JPH03195623A JPH03195623A (en) 1991-08-27
JP2714702B2 true JP2714702B2 (en) 1998-02-16

Family

ID=18349729

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1341914A Expired - Fee Related JP2714702B2 (en) 1989-12-26 1989-12-26 Carrier self-propelled conveyor

Country Status (1)

Country Link
JP (1) JP2714702B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2871357B2 (en) * 1992-11-16 1999-03-17 日産自動車株式会社 Train control method for article assembly line
JP4766614B2 (en) * 2007-01-24 2011-09-07 ヤマハ発動機株式会社 Parts assembly equipment
JP5716909B2 (en) * 2011-08-04 2015-05-13 株式会社ダイフク Carriage transfer device
CN114383547B (en) * 2020-10-21 2024-03-22 广东博智林机器人有限公司 Feeding method and device for fixed die table production line, electronic equipment and storage medium

Also Published As

Publication number Publication date
JPH03195623A (en) 1991-08-27

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