JPH0653580U - Carrier - Google Patents

Abstract

(57) [Summary] [Purpose] Eliminate the switching device that requires maintenance between the normal transportation area and the stock area, and eliminate the noise caused by the switching. [Construction] The transport device has a first rail 1 and a second rail 2 which are installed side by side, and a self-propelled drive trolley 3 suspended on the first rail 1 at a front portion thereof, and has a second rail 2 It comprises a carrier 5 having a driven trolley 4 suspended at the rear. In the normal transportation area N, the distance between the rails 1 and 2 is the narrowest, and in the stock area, the distance between the rails 1 and 2 is the widest. Both trolleys 3 and 4 are attached to the carrier body 6 so as to be rotatable in a horizontal plane.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a carrier device.

[0002]

[Prior art]

 Conventionally, a self-propelled drive trolley was installed at the front of the carrier body, and a driven trolley at the rear of the carrier was installed as a transfer device that spans both the normal transfer area and the stock area. , One normal rail erected in the normal transportation area, the first rail and the second rail erected at a predetermined distance from each other in the stock area, and the one arranged at the entrance of the stock area and The drive switching trolley is moved from the normal rail to the first rail and then laterally moved to move the driven trolley from the normal rail to the second rail. An entrance switching device and a self-propelled drive located at the exit of the stock area It is known to have an outlet switching device for moving the trolley from the first rail to the normal rail and then laterally moving the driven trolley from the second rail to the normal rail (JP-A-3-253457). See broadcast).

[0003]

[Problems to be solved by the device]

 Since the conventional transfer device has the two switching devices as described above, it is necessary to operate each switching device each time the carrier arrives at the stock area or whenever the carrier leaves the stock area. However, because of that, not only noise but also trouble could occur, so there was a need for maintenance management.

An object of the present invention is to provide a transfer device that does not require a switching device that normally requires maintenance and management between a transfer area and a stock area, and does not generate noise due to the switching.

[0005]

[Means for Solving the Problems]

 The transporting device of the present invention has a first rail and a second rail that are laid side by side, and a self-propelled drive trolley that is suspended on the first rail in the front portion, and is suspended on the second rail. With a carrier having a driven trolley at the rear, the spacing between both rails is normally the narrowest in the transport area, and the spacing between both rails is the widest in the stock area. It is rotatably attached.

[0006]

[Action]

 The transport device according to the present invention has a first rail and a second rail that are laid side by side, and a self-propelled drive trolley that is suspended on the first rail in the front portion, and is suspended on the second rail. It has a carrier with a driven trolley at the rear.In the normal transport area, the distance between both rails is the narrowest, and in the stock area, the distance between both rails is the widest, and both trolleys are horizontal with respect to the carrier body. Since it is rotatably mounted in the carrier, the carrier is transported in a normal position in the normal transfer area, and in the stock area, the carrier is in an oblique position when viewed from the plane. Further, in the normal area and the stock area, since the distance between the first rail and the second rail is changed, the conventional switching device is not required between the normal area and the stock area.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

The illustrated transporting device is provided with a first rail (1) and a second rail (2) installed side by side and a self-propelled drive trolley (3) suspended on the first rail (1). It is equipped with a carrier (5) in the rear part, which has a driven trolley (4) suspended in the second rail (2) in the rear part, and usually in the transport area (N), it is connected to both rails (1) and (2). In the stock area (S), the distance between the rails (1) and (2) is the widest, and both trolleys (3) and (4) are in the horizontal plane with respect to the carrier body (6). It is attached so that it can rotate freely.

Both of the rails (1) and (2) are provided with ridges (7) and (8) having a rectangular cross section at the upper and lower sides of the opening edge of the channel steel, respectively. The vertical walls (1a) and (2a) of (2) are opposed to each other and are attached to both sides of the lower end of the holding members (9) arranged at predetermined intervals. The holding member (9) shown in FIG. 2 is usually in the transfer area (N), and also serves as a spacer for keeping the distance between both rails (1) and (2) to a minimum.

The minimum distance (I1) is usually set so that the rails (1) and (2) and the carrier (5) in the transport area (N) are kept parallel to each other in the longitudinal direction. Although not shown, a holding member that holds the maximum distance (I2) in the stock area (S) is used. Between the minimum interval (I1) and the maximum interval (I2), bend one of the first rail (1) and the second rail (2) so that it is oblique to the other when viewed from the plane. (See FIG. 5). On the upper surface of the lower ridge (8) of both rails (1) and (2), the main vertical rollers (10) of both trolleys (3) and (4) are mounted, and both sides of the lower ridge (8) of the same Is sandwiched by a pair of lower horizontal rollers (11) of each trolley (3) (4). The undersides of the upper ridges (7) of both rails (1) and (2) respectively receive a pair of front and rear steady rest rollers (12) of both trolleys (3) and (4). Both sides of () are sandwiched by a pair of upper horizontal rollers (13) of each trolley (3) (4). The upper and lower ridges (7) and (8) may be provided on the upper and lower outer sides of the channel steel that composes the rails (1) and (2). In this case, the main vertical roller (10) and the vertical steady roller are provided. (12) rolls directly on the inner surface of the channel steel. The main vertical roller (10) of the self-propelled drive trolley (3) is driven by a motor (14).

Vertical shafts (15) (16) are erected on the front and rear upper surfaces of the carrier body (5), and the lower horizontal arm (17) of the self-propelled trolley (3) is mounted on the front vertical shaft (15). ) Is pivoted, and the inner end of the lower horizontal arm (18) of the driven trolley (4) is pivoted at the rear vertical axis (16).

[0012] Transported object support portions (19) (20) are provided at the front and rear lower portions of the carrier body (6). On the upper surface of the center of the carrier body (6), extend diagonally in both left and right directions so that it is parallel to both rails (1) and (2) where the maximum distance (I2) is maintained in the stock area (S). Square bar bumpers (23) having square contact plates (21) (22) at both ends are fixed by vertical pins (24). Half of the bumper (23) on the driven trolley (4) side extends in front of the vertical pin (24), and the other half of the drive drive trolley (3) extends behind the vertical pin (24).

In the normal transfer area (N), the object to be transferred (W) is in a state in which its longitudinal direction is parallel to both rails (1) and (2), that is, in a normal posture, as shown in FIG. Although it moves forward, in the stock area (S), as shown in FIG. 4, both rails (1) and (2) change from the minimum interval (I1) to the maximum interval (I2), so that the transported object (W ) Is displaced diagonally with respect to both rails (1) and (2), and as a result, the rectangular bar bumper (23) becomes parallel to both rails (1) and (2), and when viewed from the plane. Located in the middle of both rails (1) (2). As a result, in the production process, when a large number of objects to be transferred (W) are temporarily stocked, compared with the case where the longitudinal direction of the objects to be transferred (W) is parallel to both rails (1) (2). , Can be much more compacted. FIG. 5 shows the arrangement of the stock transfer line, which fact is clear from the figure. In addition, the normal transportation area (N) is partially included in the transportation line. When a large number of transported objects (W) are stocked or the first one is stopped by a stopper, the succeeding ones are automatically stopped at predetermined intervals, but the intervals are blocked due to a malfunction. In the case of attempting to move, the bumper (23) of the preceding conveyance (W) hits the bumper (23) of the succeeding conveyance (W), and the predetermined interval is always maintained.

[0014]

[Effect of device]

 According to the transport apparatus of the present invention, the carrier is transported in the normal posture in the normal transport zone, and in the stock zone, the carrier is automatically inclined in the plan view. However, since only the distance between the first rail and the second rail is changed and a conventional switching device is not required between the normal area and the stock area, no noise is generated due to the switching, and the switching device does not generate noise. Naturally, maintenance management is also unnecessary here.

[Brief description of drawings]

FIG. 1 is a partial perspective sectional view of a transfer device in a normal transfer area.

FIG. 2 is an enlarged front sectional view of the transfer device shown in FIG.

FIG. 3 is a partial plan view of the transfer device of FIG.

FIG. 4 is a partial plan view of the transfer device in the stock area.

FIG. 5 is a schematic plan view showing an arrangement state of a stock transportation line.

[Explanation of symbols]

 (1): 1st rail (2): 2nd rail (3): Self-propelled trolley (4): Driven trolley (5): Carrier (6): Carrier body (N): Normal transfer area (S): Stock area

Claims (1)

[Scope of utility model registration request] 1. A first trolley and a second rail laid side by side, and a self-propelled drive trolley suspended on the first rail at a front portion, and a driven trolley suspended on the second rail. With a carrier at the rear, the spacing between both rails is normally the narrowest in the transport area, and the spacing between both rails is the widest in the stock area. Conveyor attached to the.