JP2646930B2 - Hanging transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monorail suspension transfer device in which a hanger for supporting an object is hung by a self-propelled trolley movably supported by one guide rail and a driven trolley. Things.

[0002]

2. Description of the Related Art As this type of conventional suspended transfer apparatus, as disclosed in, for example, JP-A-3-32974, a self-propelled trolley and a driven trolley are connected and integrated by a connecting member. A pair of front and rear hanger arms are attached to a hanging frame, and two front and rear hangers for supporting a transferred object are suspended from the connecting member. The connecting member and each of the front and rear trolleys are connected to each other by a horizontal curve path. Parts connected to each other so as to be able to travel around the vertical support shaft so as to be rotatable relative to each other.
As described in Japanese Patent Application Publication No. 4 (1993) -1992, a self-propelled trolley and a driven trolley are connected and integrated by a connecting member, and a pair of front and rear hanger arms are attached to a hanging frame to the connecting member. It is known that two front and rear portions are suspended by a horizontal support shaft in the front-rear direction so as to be able to swing left and right.

The hanger for supporting an object to be transported in the latter transport device is configured to be held by a guide rail so that the hanger does not swing right and left during the transport. The connecting means of the connecting member and the transferred object hanger in the apparatus is combined with the "conveying means for hanging the transferred object supporting hanger so as to be able to swing right and left by a horizontal support shaft in the longitudinal direction" in the latter transfer apparatus, and If a guide rail that holds the posture of the transported object hanger is not used, the transported device supports the transported object hanger by centrifugal force acting on the transported object hanger when the transport device travels along the horizontal curve path portion. By swinging to the left and right, it is possible to avoid the adverse effect of the centrifugal force on the connecting portion between the hanger for supporting the transferred object and each trolley. Although, the overall height of the conveyor device is increased, the structure also becomes complicated, thereby leading to significant increase in cost.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a suspension conveying apparatus which can solve the above-mentioned conventional problems. When the reference numeral is attached, two front and rear portions of the hanger 4 for supporting a transferred object, which is formed by attaching a pair of hanger arms 24 to the suspension frame 23, are movably supported by one guide rail 1. 1. A suspension transport device that is suspended by a self-propelled trolley 2 and a driven trolley 3, and includes a bearing portion 5 extending at a lower end of the trolleys 2 and 3 directly below the guide rail 1 in a cantilever manner. A hanger suspension member 7, 8 having a gate-shaped side surface that straddles the bearings 5, 6 so as to sandwich the bearings 5, 6 from the front and rear, is perpendicular to the bearings 5, 6. The object to be conveyed is pivotally mounted on the support shafts 9 and 10 so as to be horizontally rotatable. Suspension frame 23 under for the hanger 4
A pair of front and rear legs 7a, 7b, 8 of the respective hanger suspension members 7, 8 are provided at two central positions in the left-right width direction at the front and rear.
a and 8b are fitted between the bearings 11a and 12a, and the bearings 11a and 12a on the suspension frame 23 side are connected to a pair of front and rear legs 7a and 7a of the hanger suspension members 7 and 8 respectively.
b, 8a, 8b are pivotally connected by front-rear horizontal support shafts 13, 14 which are provided at positions directly below the vertical support shafts 9, 10, respectively.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a guide rail, and a cross section I having rail portions 15 and 16 at both upper and lower ends.
Of shape. Reference numeral 2 denotes a self-propelled trolley, which is a driving wheel 1 that rides on the upper surface of the upper rail portion 15 of the guide rail 1.
7. A vertical shaft roller 18 for steadying the left and right rail portions 15 and 16 of the guide rail 1 from both left and right sides, and a motor 20 for driving the driving wheel 17 via a speed reducer 19; A bearing portion 5 is formed to extend cantileverly to a position directly below the guide rail 1.

Reference numeral 3 denotes a driven trolley, which is an idle wheel 21 mounted on the upper surface of the upper rail portion 15 of the guide rail 1.
And a vertical shaft roller 22 for steadying the upper and lower rail portions 15 and 16 of the guide rail 1 from both right and left sides, and a bearing extending at a lower end of the trolley to a position directly below the guide rail 1 in a cantilever manner. A part 6 is formed.

Reference numeral 4 denotes a hanger for supporting a transferred object. A pair of left and right openable hanger arms 24 are supported at the front and rear ends of a suspension frame 23, respectively. Supports transported objects such as automobile bodies. In the suspension frame 23, connecting members 11 and 12 in the width direction in the right and left direction are provided at positions near both front and rear ends, and a bearing portion 11a having a front and rear bearing hole is provided at a center position between the connecting members 11 and 12. , 12a are formed.

Reference numerals 7 and 8 denote hanger suspension members having a gate-shaped side surface. As shown in detail in FIGS. 2 to 4, the bearing portions 5 and 6 of the trolleys 2 and 3 are sandwiched from front and rear. As described above, in a state of straddling the bearing portions 5 and 6, the bearing portions 5 and 6 are pivotally connected to the bearing portions 5 and 6 by vertical support shafts 9 and 10 so as to be horizontally rotatable. Then, the bearings 11a, 12a of the hanger 4 are fitted between the pair of front and rear legs 7a, 7b and 8a, 8b of the hanger suspension members 7, 8, and both of them are connected to the horizontal support shaft 13 in the front-rear direction. , 14 so as to freely swing left and right. The upper ends of the vertical support shafts 9 and 10 are cantilevered to the lower side of the guide rail 1 for supporting the vertical shaft rollers 18 and 22 for steadying under the trolleys 2 and 3. Although the roller bearings 25 and 26 are supported, the upper end supporting structure of the vertical support shafts 9 and 10 with respect to the roller bearings 25 and 26 is not essential to the present invention.

[0009] The suspended transfer device configured as described above,
The driving wheels 17 of the self-propelled trolley 2 are driven to rotate by the motor 20 so that the self-propelled trolley 2 can be self-propelled along the guide rail 1 and the object to be conveyed such as an automobile body supported by the object hanging hanger 4. Can be transported. Thus, as shown in FIG. 4, the self-propelled trolley 2 and the driven trolley 3 can be horizontally rotated around the vertical support shafts 9, 10 with respect to the hanger 4 suspended via the hanger suspension members 7, 8. Therefore, even in a path portion where the guide rail 1 curves horizontally, the trolleys 2 and 3 can travel smoothly with the horizontal rotation of the trolleys 2 and 3 with respect to the hanger 4.

The hangers 4 are provided with both trolleys 2 and 3
With respect to the front and rear horizontal support shafts 13 and 14 (of course,
3 and 14 are in concentric positions), so that the hanger 4 can be swayed right and left at a loading / unloading place of a conveyed object or the like when it is necessary to prevent the hanger 4 from swinging left and right. The guide rails and the guide rollers provided on the hanger 4 allow the hanger 4 to move, but can also prevent the hanger 4 from swinging left and right.

[0011]

The hanging and conveying apparatus of the present invention, which can be carried out as described above, comprises a hanger for supporting an object to be transported, the hanger for horizontal rotation about a vertical support shaft and the front and rear for a pair of front and rear trolleys. Is suspended so that it can swing left and right around the horizontal support shaft, so that it can travel smoothly without being adversely affected by the centrifugal force acting on the hanger for supporting the transferred object, even in the horizontal curve path. In particular, according to the configuration of the present invention, the self-propelled trolley and the driven trolley are connected by a long connecting member, and the transferred object is supported to the connecting member via a hanger suspension member. Instead of suspending the hanging frame of the hangers, each trolley is directly connected to the suspended frame of the hanger for supporting the transferred object via the gate-shaped hanger hanging member. Connecting member elongated distance equal length between the dynamic trolley is unnecessary, it is possible to reduce the cost of parts becomes small, it is possible to reduce the height of the entire conveying device.

In addition, the hanger suspension member has a gate-like side shape and is straddled over a bearing portion on the trolley side, and a suspension frame of a hanger for supporting a transferred object is provided between a pair of front and rear legs of the hanger suspension member. The two hanger suspension members are supported by the front and rear horizontal support shafts supported between the pair of front and rear legs so as to be able to swing left and right in a state where the bearings on the side are fitted. No vertical load is applied to the vertical support shaft pivotally attached, and no bending force is applied to the hanger suspension member and the front-rear horizontal support shaft, so that the number of parts is small and the structure is extremely simple. Nevertheless, it is extremely robust and can be used as a transport device suitable for transporting heavy objects to be transported.

[Brief description of the drawings]

1A is a partially cutaway side view, and FIG. 1B is a longitudinal sectional front view.

FIG. 2 is an enlarged partial longitudinal side view of a hanger hanging portion.

FIG. 3 is an enlarged front view of a hanger hanging portion.

FIG. 4 is a cross-sectional plan view showing a hanger hanging portion of both trolleys.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 guide rail 2 self-propelled trolley 3 driven trolley 4 hanger for hanging transferred object 5 self-propelled trolley side bearing part 6 driven trolley side bearing part 7 gate-shaped hanger hanging member 7a leg portion of the same hanging member 8 Gate-shaped hanger suspension member 8a Leg portion of the suspension member 9 vertical support shaft 10 vertical support shaft 11a hanger-side bearing portion 12a hanger-side bearing portion 13 front-rear horizontal support shaft 14 front-rear horizontal support shaft 23 transported Hanging frame for hanger for supporting objects 24 Hanger arm

Claims (1)

(57) [Claims] 1. A pair of hanger arms in front and rear of a suspension frame
Two places before and after the hanger for supporting the transferred object
And a suspended conveying apparatus comprising hanging Ri lowered by on the one guide self-propelled trolley which is movably supported on the rail and a driven trolley, to beneath the guide rail to the lower end of the two trolleys forming a bearing portion extending cantilevered, by a vertical support shaft hangers hanging member extends over the side surface shape of the gate-shaped on the bearing portion so as to sandwich the bearing portion from the front and rear before Symbol the bearings It is pivotably mounted on a horizontally rotatable, and
In the hanging frame of the anchor, the front and rear two places
In the center position, between the pair of front and rear legs of each hanger suspension member
And a bearing part to be fitted to the suspension frame.
Between the pair of front and rear legs of each hanger suspension member.
A suspension transfer device pivotally mounted on a front-rear horizontal support shaft erected just below each vertical support shaft .