JPH0986632A - Bridge plate mounting structure in conveyer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a number of part items to decrease necessary for mounting, while simplifying mounting/demounting work of a bridge plate relating to a frame. SOLUTION: A bridge plate 9 is mounted between right/left side frames 2, 2 in a chain conveyer, through a slot 10 formed in the bridge plate 9, by slightly screw fitting a bolt 16 to a screw hole 14 formed in the first horizontal part 12 of a bracket 11, it is supported to the bridge plate 9 right/left movably further fixably in a prescribed position. In this condition, the bracket 11 is moved to the outside, the second horizontal part 13 of the bracket 11 is engaged with a T-shaped groove 7 of the side frame 2, and the bolt 16 is tightened, so that the bridge plate 9 can be mounted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure, such as a chain conveyor, for attaching a bridge plate to be passed between right and left frames for an operator to pass the conveyor across the conveyor.

[0002]

2. Description of the Related Art Conventionally, in a conveyor such as a chain conveyor, a crossing plate for an operator to pass across the conveyor has been attached between left and right frames by using an L-shaped bracket attached to the frame. There is. As the mounting structure of the cross plate, the bracket is attached to the frame by screwing a bolt into a nut inserted in an engagement groove formed in the inner wall of the frame through a through hole formed in the vertical portion of the bracket. By mounting the bolts through the holes formed in the cross plate into the screw holes formed in the horizontal portion of the bracket thus mounted on the frame, the cross plate is mounted between the left and right frames via the bracket. .

[0003]

However, in such a conventional mounting structure, first, a bolt is tightened to mount the bracket to the frame, and then the cross plate is attached to the mounted bracket. Since it was necessary to tighten the bolts to install the bridge, the work of installing the cross plate was troublesome and took time.
Also, the work of removing the attached cross plate was similarly troublesome. Furthermore, the number of parts required for mounting, such as bolts and nuts, has increased.

The present invention has been made in view of the above problems, and an object thereof is to easily perform the work of attaching and removing the cross plate between the left and right frames of the conveyor in a short time with a small number of parts. It is to provide a mounting structure that can be.

[0005]

In order to achieve the above object, the invention according to claim 1 is a structure for mounting a bridge plate between left and right frames of a conveyor, and is an engagement provided on an inner wall of the frame. A groove and a mounting member that is supported on the cross plate so as to be movable left and right and fixed at a predetermined position. The mounting member is attached to the cross plate with a part of the mounting member engaged with the engaging groove. It is a cross plate mounting structure in a fixed conveyor.

According to a second aspect of the invention, the mounting member comprises:
Left and right long and slidable holes on the cross plate, screw holes formed on the mounting member, and bolts that are screwed into the screw holes of the mounting member through the long holes of the cross plate so that the cross plate can move left and right It is supported so that it can be fixed in position.

According to a third aspect of the present invention, the mounting member is provided with a convex portion that slides in the elongated hole of the bridge plate when the mounting member moves left and right.

According to a fourth aspect of the invention, the left and right end portions of the bridge plate are placed on the upper surface of the frame.

According to a fifth aspect of the present invention, the engagement groove is formed over the entire length in the longitudinal direction of the frame.

The present invention has the following functions. According to the first aspect of the present invention, a part of the mounting member that is supported by the cross plate so as to be movable left and right and fixed at a predetermined position is engaged with the engaging groove provided on the inner wall of the frame, and the mounting member is mounted in that state. By fixing the member to the cross plate, the cross plate can be attached between the left and right frames of the conveyor.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited to the embodiments without departing from the spirit of the present invention. In this specification, the front means the right side of FIG. 1, the rear means the left side of the figure, the left means the upper side of FIG. 1, and the right means the lower side of FIG.

In FIG. 1, reference numeral 1 is a chain conveyor, which is composed of a pair of left and right conveyor units.
The conveyor unit includes a side frame 2 which is long in the front-rear direction, a drive unit 4 having a drive sprocket 3 provided at the front end of the side frame 2, and a driven sprocket (not shown) provided at the rear end of the side frame 2. A driven unit (not shown) is provided, and a chain 5 is stretched between both sprockets. The drive sprocket 3 is driven by the motor 6, and the chain 5 is driven along the side frame 2 in conjunction with these drives.

A plurality of T-shaped grooves 7 are formed in the side frame 2 over the entire length in the longitudinal direction. In this specification,
The T-shaped groove 7 refers to a groove in which protruding edges that are opposed to each other are formed at the opening edge, and even if the groove is other than a T-shaped groove, the protruding edges that are opposed to the opening edge are mutually provided. Are formed.

Resin-made chain rails 8a and 8b on which the upper and lower chains 5 are mounted are inserted into the T-shaped grooves 7 and 7 formed on the upper surface and inside of the side frame 2.

A plurality of bridge plates 9 are attached between the left and right side frames 2 and 2 by utilizing the T-shaped groove 7 at the uppermost portion on the inner wall side of the side frame 2. This crossing plate 9 enables an operator to traverse the chain conveyor 1 laterally.

The details of the mounting structure of the bridge plate 9 on the side frame 2 are shown in FIGS. 2 to 4, 10 is a long hole extending in the left-right direction at both left and right end portions of the bridge plate 11,
Is a bracket, 16 is a bolt, and 17 is a washer.
The diameter of the washer 17 is larger than the front-back width of the elongated hole 10. The bracket 11 has an upper first horizontal portion 12
And a second horizontal portion 13 on the lower side, and a screw hole 14 penetrating vertically is formed in the central portion of the first horizontal portion 12.
With such a configuration, through the long hole 10, the screw hole 14
With the bolt 16 slightly screwed onto the bracket 11,
Can be supported on the bridge plate 9 so as to be movable left and right and fixed at a predetermined position.

At the center of the end of the first horizontal portion 12 of the bracket 11, there is provided a convex portion 15 that is raised above. By sliding the convex portion 15 in the long hole 10,
The bracket 11 can be laterally moved accurately and easily along the long hole 10. Further, the convex portion 15 also serves to prevent horizontal rotation of the bracket 11 when tightening the bolt.

A method of mounting the bridge plate 9 in the above mounting structure will be described. First, the convex portion 15 is the long hole 10
Of the inner wall portion (the inner side is the left side in the right long hole 10 and the right side in the left long hole 10), that is,
The bolt 16 is slightly screwed into the screw hole 14 of the bracket 11 through the elongated hole 10 in a state where the end of the second horizontal portion 13 does not interfere with the side frame 2 when the crossing plate 9 is subsequently lowered from above. After that, the bridge plate 9 is lowered from above and the left and right ends are placed on the side frames 2 and 2 (see FIG. 3). Then, the bracket 1 together with the bolt 16 and the washer 17
By moving 1 outward, the second horizontal portion 13 of the bracket 11 is engaged with the T-shaped groove 7. After that, the bolts 16 are tightly tightened to attach the bracket 11 to the cross plate 9.
By fixing the cross plate 9, the cross plate 9 can be attached between the left and right side frames 2 and 2 (see FIG. 2).

When removing the crossing plate 9 attached for maintenance and inspection of the chain conveyor 1, it is sufficient to carry out the reverse operation. That is, after loosening the tightening of the bolt 16, the bracket 11 is moved inward, and the second portion with respect to the T-shaped groove 7 is moved.
The horizontal portion 13 may be disengaged, and in this state, the cross plate 9 may be lifted up and removed. In addition, the crossing plate 9 is formed with two hand-holding openings 18, 18 so that it can be easily attached, detached and carried. In addition, an opening is formed in the crossing plate 9 at a position corresponding to a sensor that projects onto the transport surface of the chain conveyor 1 and detects the transported object so that the sensor does not interfere with the sensor.

In the present embodiment, as described above,
When mounting the cross plate 9 between the left and right side frames 2, 2, it is not necessary to tighten the bolts for mounting the bracket 11 on the side frame 2, and only the bolt tightening for mounting the bracket 11 on the cross plate 9 is required. Can be performed easily and in a short time.

The groove formed in the side frame 2 is a T-shaped groove 7 in which projecting edges facing each other are formed at the opening edge.
Even if it is not, a part of bracket 11 (2nd horizontal part 13)
It suffices if it is a groove (engagement groove) having a shape capable of engaging with.

[0022]

The present invention is configured as described above.
The following effects are obtained. According to the first aspect of the invention, in the work of mounting the cross plate between the left and right frames, the mounting member is moved left and right with respect to the cross plate, and a part of the mounting member is engaged with the engagement groove of the frame. In this state, it suffices to fix the mounting member to the bridge plate, and the work of mounting / removing the bridge plate can be easily performed in a short time and the number of bolts / nuts required can be reduced.

According to the second aspect of the present invention, long long holes are provided on the left and right sides of the cross plate, screw holes are formed in the attachment member, and bolts are screwed into the screw holes of the attachment member through the long holes of the cross plate. Thus, it is possible to easily realize a configuration in which the mounting member is supported on the cross plate so as to be movable left and right and fixed to a predetermined position.

According to the third aspect of the present invention, the mounting member is provided with the convex portion that slides in the elongated hole of the cross plate when the mounting member moves to the left and right. It can be done reliably. Further, since the convex portion of the mounting member engages with the elongated hole, when the bolt is tightened to mount the mounting member on the cross plate, horizontal rotation of the mounting member with respect to the cross plate is prevented to facilitate the work.

According to the invention as set forth in claim 4, since the left and right end portions of the bridge plate are placed on the upper surface of the frame, the load applied to the bracket is reduced and the mounting strength of the bridge plate to the frame is increased. be able to.

According to the fifth aspect of the present invention, since the engaging groove is formed over the entire length in the longitudinal direction of the frame, the bridging plate can be easily attached at an arbitrary position between the frames.

[Brief description of drawings]

FIG. 1 is a plan view showing a chain conveyor according to the present embodiment.

FIG. 2 is an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is a view showing a state in which the engagement of the bracket with the T-shaped groove in FIG. 2 is released.

FIG. 4 is an enlarged plan view showing a mounting portion of a bridge plate.

FIG. 5 is a plan view showing a bracket.

FIG. 6 is a side view showing a bracket.

[Explanation of symbols]

 1 Chain conveyor 2 Side frame 7 T-shaped groove 9 Cross plate 10 Long hole 11 Bracket 12 First horizontal part 13 Second horizontal part 14 Screw hole 15 Convex part 16 Bolt 17 Washer

Claims (5)

[Claims] 1. A structure for mounting a cross plate between left and right frames of a conveyor, wherein the engagement groove is provided in an inner wall of the frame, and the mounting is supported by the cross plate so as to be movable left and right and fixed at a predetermined position. And a member, and a plate mounting structure for a conveyor in which a mounting member is fixed to the plate while a part of the mounting member is engaged with the engaging groove. 2. The mounting member includes a left and right elongated hole provided in the cross plate, a screw hole formed in the mounting member, and a bolt screwed into the screw hole of the mount member through the long hole of the cross plate. The plate mounting structure for a conveyor according to claim 1, wherein the plate is supported by the plate so as to be movable left and right and fixed at a predetermined position. 3. The structure according to claim 2, wherein the mounting member is provided with a convex portion that slides in the long hole of the plate when the plate is moved left and right. 4. The structure for mounting a plate on a conveyor according to claim 1, wherein the left and right ends of the plate are mounted on the upper surface of the frame. 5. The waffle plate mounting structure for a conveyor according to claim 1, wherein the engagement groove is formed over the entire length in the longitudinal direction of the frame.