JPH03195623A - Conveyor with self-mobile carrier - Google Patents

Conveyor with self-mobile carrier

Info

Publication number
JPH03195623A
JPH03195623A JP1341914A JP34191489A JPH03195623A JP H03195623 A JPH03195623 A JP H03195623A JP 1341914 A JP1341914 A JP 1341914A JP 34191489 A JP34191489 A JP 34191489A JP H03195623 A JPH03195623 A JP H03195623A
Authority
JP
Japan
Prior art keywords
carrier
inter
trolley
self
distance
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
JP1341914A
Other languages
Japanese (ja)
Other versions
JP2714702B2 (en
Inventor
Akio Wakabayashi
若林 堯雄
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

Links

Landscapes

  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Control Of Conveyors (AREA)
  • 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)

Abstract

PURPOSE:To have effective operations by coordinating the fore-and-aft relative position of the front part of a carrier with its rear part, changing the fore- and-aft distance between a sensed member for the inter-car distance control and sensor of an inter-car distance control means, and thereby adjusting dispersion of the operation time depending upon the type of car. CONSTITUTION:If a photo-electric switch 50 is off and another 51 is on, the tail of a sensed member 48 of a foregoing carrier 3 lies between them 50, 51 and the inter-car-distance is within the set range, so that the carrier 3 is allowed to run at the set speed so as not to change the inter-car distance. If the photo-electric switch 51 is off and the other 52 is on, by contrast, the inter-car distance is too small being out of the set range, so that the carrier 3 is decelerated from the set speed so that the inter-car distance will enlarge. When the photo-electric switch 52 is turned off, the inter-car distance is very small, so that the carrier 2 is stopped.

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。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to carrier self-propelled conveyors used, for example, in automobile assembly lines.

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。
BACKGROUND OF THE INVENTION A self-propelled carrier conveyor used in an automobile assembly line has a plurality of self-propelled carriers in the front and rear running at equal intervals along a predetermined track equipped with rails, etc. 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、シ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 automobile assembly lines, so-called mixed production is sometimes performed in which different types of vehicles are mixed on one assembly line, and in this case, the working time required for one process may differ depending on the type of vehicle. However, in conventional carrier self-propelled conveyors, the inter-vehicle distance of all carriers is the same, and this cannot be changed, so it is not possible to adjust the variations in work time caused by different types of vehicles. For this reason, conventionally, all inter-vehicle distances have been set to be long according to the type of vehicle that requires the longest working time, which has resulted in the problem of lowering overall work efficiency.

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 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、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 run along a predetermined track, and has a space between the vehicles at the rear of the leading carrier and at the front of the trailing carrier. In a carrier self-propelled conveyor, a carrier self-propelled conveyor is provided with a detected member for distance control, and 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 on the other side. consists of a front part and a rear part whose relative positions can be adjusted in the front-back direction by relatively moving in the front-back direction, and the detected object is attached to one of the front part of the front part and the rear part of the rear part. The other member is provided with a sensor for the inter-vehicle distance control means.

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。
By adjusting the relative position in the longitudinal direction of the front part and the rear part of the working carrier, the longitudinal distance between the detected member for inter-vehicle distance control and the sensor of the inter-vehicle distance control means is changed significantly.

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。
Therefore, it is possible to greatly change the distance between each carrier and the following carrier.

実  施  例 以下、図面を参照して、この発明の詳細な説明する。Example Hereinafter, the present invention will be described in detail 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 part of a floor-shaped carrier self-propelled conveyor installed in 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 predetermined track (2) provided on the floor (1).
A plurality of front and rear self-propelled carriers (3) are provided that travel along the vehicle body, and these carriers (3) carry the vehicle body (A) and self-propel in the direction of the arrows in FIGS. 1 and 2. In addition, in the following description, front, rear, left and right shall refer to the advancing 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。
Details of the track (2) and carrier (3) are shown in FIGS. 3-6. In addition, in Fig. 1 and Fig. 2,
A part of orbit (2) is omitted from the illustration.

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対のキャスタ受は部材(9)がこれらの支柱(8
)の上端に支持されている。受は部材(9)の上面は床
(1)とほぼ面一になっている。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) with a U-shaped cross section is provided below the floor (1) in the groove (4), and an upper guide member (with a square cross section) is provided on the lower surface of the side edge of the upper flange (5a) of this rail (5). 6
), and similar lower guide members (7) are fixed to the upper surface of the side edge of the lower flange (5b). Groove (4
) in the left and right sides of the rail (5), there are multiple pillars (8
) are provided, and the member (9) is a pair of left and right caster supports extending in the front and back direction parallel to the rail (5).
) is supported at the upper end of the The upper surface of the receiver member (9) is substantially flush with the floor (1). The upper part of the groove (4) is covered with a lid (10) that is almost flush with the floor (1).
) is provided with a slit-shaped opening (11) extending in the front-rear direction parallel to the rail (5). 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)と後側部分く13
)とに分けられている。前側部分(12)は、軌道(2
)の受は部材(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(■6)および第
1中間トロリ(17)より構成されている。
The carrier (3) has a front part (12) and a rear part 13.
). The front part (12) has a track (2
) is connected to a trolley (14) running on the member (9), a leading trolley (15) connected to the trolley (14) and running along a rail (5), a driving trolley (6), and a first trolley (6). It is composed of an intermediate trolley (17).

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)上を走行するデツキ
(18)、ならびにデツキ(18)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 rear portion (13) is attached to a deck (18) that is movably mounted on the trolley (14) and runs on the track (2) together with the deck (18), and is connected to the deck (18) and runs along the rail (5). The trolley is composed of a second intermediate trolley (19) and a rear end trolley (20) that travel at the same time.

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箇所に受は部材(9)上を転勤す
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 trolley (14) has a hollow box shape that is long and short in the front and back direction, and is equipped with casters (21) that move over the member (9) at four locations on its front, rear, left and right sides. A platform for receiving the vehicle body (A) (
22) is provided. In addition, the top plate of the trolley (14) (
A person can stand on top of 14a).

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(lO)の開口(11)の部分を通って
台車(I4)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略り
字形をなし、その一部がレール(5)の上下のガイド部
材(8)(7)の間に進入している。
As shown in detail in FIG. 3, the first intermediate trolley (17) passes through the opening (11) of the lid (lO) of the track (2) and passes through the bottom plate (14b) of the rear part of the bogie (I4). ) is connected to. This trolley (17) has an abbreviated shape when viewed from the front and rear directions, and a portion thereof enters between the upper and lower guide members (8) and (7) of the rail (5).

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。
A turning member (23) that can turn around a vertical axis is attached to this part, and a plurality of upper horizontal rollers in front and back sandwiching the upper guide member (6) from both left and right sides are attached to this turning member (23). (24) is provided.

駆動トロリ(16)は軌道(2)の蓋(10)の開口(
11)の部分を通って台車(14)の前寄りの部分の底
板(14b)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(2
6)を備えている。
The drive trolley (16) is connected to the opening (
The first intermediate trolley (17) is connected to the bottom plate (14b) of the front part of the trolley (14) through the section 11).
) as well as the pivot member (25) and the upper horizontal roller (2
6).

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(1
5)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)上を転勤する前後複数の垂直ロ
ーラ(31)を備えている。
The rear end of a connecting member (27) is rotatably connected to the front end of the drive trolley (16) 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 for rotation about a vertical axis. As shown in detail in Figures 5 and 6, the leading trolley (1
5) a pivoting member (28) capable of pivoting about a vertical axis;
A plurality of front and rear upper horizontal rollers (29) sandwich the upper guide member (6) of the rail (5) from both left and right sides, a lower horizontal roller (30) and a lower guide member ( 7) It is equipped with a plurality of vertical rollers (31) that move over the front and back.

デツキ(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。デツキ(18
)の左右両側縁に下方に折れ曲った背の低い垂直壁(1
8a)が形成されている。デツキ(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) (33)に案内されてデツキ
(18)が台車(14)に対し前後方向に移動しつるよ
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(3
5)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、デツキ(18)
の前部上面に、ボールねじ(36)がねじはめられたボ
ールナツト(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
、デツキ(18)が台車(I4)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) has a horizontal plate shape and is arranged immediately above the bottom plate (14b) in the truck (14). Detsuki (18)
) is a short vertical wall (1
8a) is formed. 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 both left and right sides of the bottom plate (14b) of the trolley (14), and the outside of the vertical walls (18a) on both sides The side surfaces are 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),
Guided by these rollers (32) and (33), the deck (18) moves and hangs back and forth with respect to the truck (14). A ball screw drive motor (34) is provided at the front of the truck (14), and a bearing (3) is provided at the rear.
5) is provided, and a ball screw (
The front end of the motor (36) is connected to the motor (34), and the rear end is received by the bearing (35). Also, Detsuki (18)
A ball nut (37) into which a ball screw (36) is screwed is fixed to the front upper surface of the. By rotating the ball screw (36) with the motor (34), the deck (18) is moved to the front end position (the position shown in FIGS. 1 and 2) where it completely enters the truck (I4) and the truck (14). ) and a rear end position (position shown in FIGS. 7 and 8) that protrudes rearward.

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、デツキ(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、デツキ
(18)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(4
2)を備えている。
As shown in detail in FIG. 4, the second intermediate trolley (19) passes through the opening (11) of the lid (10) of the track (2) and extends forward and backward onto the rear lower surface of the deck (18). does not move, but is connected so that it can move left and right. In addition, at the rear of the bottom plate (14b) of the trolley (14), a second intermediate trolley (
A cutout (38) is formed so as not to interfere with the cutout (38). Like the leading trolley (15), this trolley (19) includes a rotating member (39), a plurality of upper horizontal rollers in the front and rear (
40), lower horizontal roller (41) and vertical roller (4
2).

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 a 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 second intermediate trolley (19). ) are connected for rotation about a vertical axis. The rear trolley (20) is similar to the leading trolley (15),
Swivel member (44), front and rear upper horizontal rollers (45)
, a lower horizontal roller (46) and a vertical roller (47).

デツキ(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
ツキ(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(20)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、デツキ(18)が後方1.二移動し
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 truck (14) and the second intermediate trolley (19). As described above, when the deck (18) moves forward and backward relative to the trolley (14), the second intermediate trolley (19) and rear end trolley (20) also move forward and backward, thereby causing the carrier The total length of (3) is changed. Although not shown, the carrier (3) is provided with a drive circuit for the motor (34), a switch, etc., and the overall length of the carrier (3) can be adjusted steplessly by operating the switch. Also, Detsuki (18) was 1. When it moves, a person can stand on top of 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) is equipped with a drive motor and a drive roller driven by the drive motor.
2) It runs on its own along the route.

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2、その左
右幅は後方にいくに一つれて徐々に広くなっている。後
端トロリ(2D)はデツキ(18)より後方に位置し、
第1図および第2図のようにデツキ(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。
A horizontal plate-shaped detected member (48) for controlling inter-vehicle distance is fixed to the rear end of the rear end trolley (20) and projects horizontally rearward. The member to be detected (48) has a fan shape 2, and its left and right width gradually increases toward the rear. The rear end trolley (2D) is located behind the deck (18),
As shown in FIGS. 1 and 2, even when the deck (18) advances to the front end position, the detected member (48) protrudes rearward from the truck (14).

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(4
9)に、前後3組の充電スイッチ(センサ)、すなわち
、前側の第1光電スイツチ(50)、中央の第2光電ス
イツチ(51)および後側の第3光電スイツチ(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)(5z)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)(51a) (
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)(52a)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)は光
電スイッチ支持部材(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(50
a) (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)(7
)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。
A photoelectric switch support member (49) is fixed to the front end of the leading trolley (15) and protrudes horizontally forward to near the front end of the trolley (14).
9), there are three sets of charging switches (sensors) in the front and rear, namely, a first photoelectric switch (50) on the front side, a second photoelectric switch (51) in the center, and a third photoelectric switch (52) on the rear side.
is provided. As shown in detail in FIG. 6, the photoelectric switch (50) (51) (5z)
A light projector (50a) (51a) (52a) fixed to the upper plate (49a) and irradiating beam light downward, and a lower plate (
49b) and projecting parts (50a) (51a) (
A light receiving unit (50b) that detects the beam light from 52a)
(51b) and (52b), and has a light projecting section (50a).
(51a) (52a) and light receiving section (50b) (51b)
(52b) is turned off when it is blocked, and turned on when it is not cut off. The detected member (48) is the upper plate (49a) and lower plate (49a) of the photoelectric switch support member (49).
49b), and between these, that is, the light emitting part (50) of the photoelectric switch (50) (51) (52)
a) (51a) (52a) and light receiving section (50b) (
51b) and (52b). Then, the detected member (48) is connected to the supporting member (49) (7).
) When it enters between the upper plate (49a) and lower plate (49b),
The photoelectric switch (
50) (51) (52) are cut off and turned off.

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。
Although not shown, the carrier (3) is equipped with a speed control device that controls 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)
との車間距離を所望の設定範囲に制御する。
In the above conveyor, the following carrier (3) monitors the output of the photoelectric switches (50), (51), and (52) while traveling, and the preceding carrier (3)
The distance between the vehicle and the vehicle is controlled within the desired setting range.

まず、3つの光電スイッチ(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光電スイツチ(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
で車間距離が小さくなるようにする。
First, if all three photoelectric switches (50), (51, and 52) are on, the detected member (
48) Since the rear end is in front of the first photoelectric switch (50) and the inter-vehicle distance is too large than the set range, the carrier (3) is increased in speed from the preset speed (set speed) to change the inter-vehicle distance. Make the distance smaller.

第5図および第6図のように、第1光電スイツチ(50
)がオフになって、第2光電スイツチ(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光電スイツチ(50)と第2光電スイツチ(5
1)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 (50
) is off and the second photoelectric switch (51) is on, the rear end of the detected member (48) of the preceding carrier (3) is connected to the first photoelectric switch (50) and the second photoelectric switch (51).
1), and the following distance is within the set range,
The carrier (3) is made to travel at a set speed so that the inter-vehicle distance does not change.

第2光電スイツチ(51)がオフになって、第3光電ス
イツチ(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光電スイツチ(51)
と第3光電スイツチ(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 turned off and the third photoelectric switch (52) is turned on, the rear end of the detected member (48) of the preceding carrier (3) is turned off by the second photoelectric switch (51).
and a third photoelectric switch (52), and since the inter-vehicle distance is too small than the set range, the carrier (3) is decelerated from the set speed to increase the inter-vehicle distance.

第3光電スイツチ(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光電スイツ
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 behind the third photoelectric switch (52), and the inter-vehicle distance is very small. Therefore, 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
スイツチ(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 following 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、キャリャ(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。
In addition, in the above conveyor, the carrier (3
), the distance between the vehicle and the following carrier (3) can be changed by adjusting the overall length of each carrier (3).

すなわち、第7図および第8図に示すように、デツキ(
18)を後方に移動してキャリヤ(3)の全長を長(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、デツキ(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(5
0) (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, the deck (
18) rearward to lengthen the entire length of the carrier (3) (then, the distance between the photoelectric switches (50) (51) (52) and the detected member (48) becomes longer, and the following carrier (3) On the other hand, as shown in Figures 1 and 2, if the deck (18) is moved forward to shorten the overall length of the carrier (3), the photoelectric switch (5)
0) The longitudinal distance between (51) and (52) and the detected member (48) becomes shorter, and the inter-vehicle distance with the following carrier (3) becomes smaller.

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) is performed, for example, when the vehicle body (A) is first mounted on the assembly line, depending on the type of vehicle body (A). In other words, for the carrier (3) equipped with the car body (A) that takes a long time to work, the overall length is lengthened so that the inter-vehicle distance with the following carrier (3) is longer, and the car body (A) that takes a short time to work is installed. The overall length of the carrier (3) is shortened so that the inter-vehicle distance with the following carrier (3) is shortened. By adjusting the inter-vehicle distance according to the work time in this way, workers can proceed with work at a constant pitch, and work efficiency is improved by uniformly increasing the inter-vehicle distance as in the past. There was no decrease in

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 suspended from a track supported from the ceiling.

キャリヤの前側部分および後側部分の構成、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 configurations of the front and rear portions of the carrier, the mechanism for relatively moving these in the longitudinal direction, the configuration of the detected member for controlling the inter-vehicle distance, the configuration of the sensor for controlling the inter-vehicle distance, etc. are not limited to those of the above embodiments. , 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。
Effects of the Invention According to the carrier self-propelled conveyor of the present invention, as described above, it is possible to greatly change the inter-vehicle distance for each carrier. Therefore, if this is applied to an automobile assembly line, it will be possible to adjust the variation in work time depending on the car model.
You will be able to work more efficiently.

【図面の簡単な説明】[Brief explanation of 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■−■線の拡大断面図、
第4図は第1図■−■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Vl−Vl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)・・・充電スイッチ(センサ)。 以  上
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 partially cutaway side view of the self-propelled carrier, and Fig. 3 is a section taken along the line Enlarged cross-sectional view,
Fig. 4 is an enlarged sectional view taken along the line ■-■ in Fig. 1, Fig. 5 is a plan view showing the rear end trolley of the preceding carrier and the leading trolley of the succeeding carrier, and Fig. 6 is an enlarged sectional view taken along the line Vl-Vl in Fig. 5. arrow view,
FIG. 7 is a partially cutaway plan view of the rear part of the self-propelled carrier showing a state different from FIG. 1, and FIG. 8 is a partially cutaway side view of the same. (2)...Trajectory, (3)...Self-propelled carrier, (12
)...front part, (13)...rear part, (48)
...Detected member for inter-vehicle distance control, (50) (51)
(52)...Charging switch (sensor). that's all

Claims (1)

【特許請求の範囲】[Claims]  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。
A plurality of front and rear self-propelled carriers that travel along a predetermined track are provided, and a detected member for inter-vehicle distance control is provided at one of the rear part of the leading carrier and the front part of the following carrier, and the detected member is provided on the other side. In a carrier self-propelled conveyor equipped with a sensor for inter-vehicle distance control means that controls the inter-vehicle distance between the front and rear carriers by detecting the It consists of an adjustable front part and a rear part, and the detected member is provided on one of the front part of the front part and the rear part of the rear part, and the sensor of the inter-vehicle distance control means is provided on the other. Carrier self-propelled conveyor.
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 true JPH03195623A (en) 1991-08-27
JP2714702B2 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)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06155198A (en) * 1992-11-16 1994-06-03 Nissan Motor Co Ltd Electric car control method for article assembling line
JP2008178944A (en) * 2007-01-24 2008-08-07 Yamaha Motor Co Ltd Component assembling device
JP2013035321A (en) * 2011-08-04 2013-02-21 Daifuku Co Ltd Carriage-type conveying apparatus
CN114383547A (en) * 2020-10-21 2022-04-22 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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06155198A (en) * 1992-11-16 1994-06-03 Nissan Motor Co Ltd Electric car control method for article assembling line
JP2008178944A (en) * 2007-01-24 2008-08-07 Yamaha Motor Co Ltd Component assembling device
JP2013035321A (en) * 2011-08-04 2013-02-21 Daifuku Co Ltd Carriage-type conveying apparatus
CN114383547A (en) * 2020-10-21 2022-04-22 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
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

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