JPH0738020U - Roller conveyor side frame cover plate mounting device - Google Patents

Abstract

(57) [Summary] [Object] To provide a device capable of easily attaching and detaching a cover plate for covering a roller shaft protruding to an outer surface of a side frame of a roller conveyor. [Structure] When the cover plate 17 is mounted, the outer receivers 18 installed near both ends of the cover plate 17 are opposed to the corresponding inner receivers 13 installed on the side frame 10, and the cover plate 1 is attached.
7 to press the arm plates 19 of the respective receiving members 18 and 13,
When the projections 20 and 16 formed in the opposite direction at the tip of the 15 are fitted to the receiving members 18 and 13 to the position where they cross over each other, the receiving members 18 and 13 are elastically adhered to each other and The ridges 20 and 16 of 18 and 13 contact and are held so as not to separate, and the cover plate 17 is stably attached.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a roller conveyor, and more particularly to a side frame cover plate mounting device that mounts a cover plate that covers a roller shaft exposed on an outer surface of a side frame that supports a conveyor roller.

[0002]

[Prior art]

 Various types of roller conveyor drive devices are known. For example, Japanese Utility Model Laid-Open No. 3-64906 discloses the device shown in FIGS. 6 and 7.

FIG. 6 is a front view of the prior application device, and FIG. 7 is a side cross-sectional view of the same, showing a pair of front and rear side frames (02) having a U-shaped cross section on the upper part of the gantry (01). It is installed in parallel and supports a plurality of conveyor rollers (03) to form a roller row.

Roller shafts (04) at both ends of each conveyor roller (03) project through the shaft holes provided in the side frame (02) to the outer surface of the side frame (02).

A drive shaft (05) to which the same number of pulleys (06) as the conveyor rollers (03) are fixed is installed below the roller row in parallel with the side frame (02), and the corresponding conveyor rollers (03) are installed. An endless belt (07) is mounted on the pulley (06).

Connect the pulley or sprocket (08) fixed to the drive shaft (05) in place and the pulley or sprocket (010) of the output shaft of the motor (09) with an endless belt or chain (011). is there.

When the drive shaft (05) is rotationally driven by the motor (09), the conveyor rollers (03) are synchronously rotated in the same direction to convey the placed conveyed object along the roller row. To do.

[0008]

[Problems to be solved by the device]

 In the above roller conveyor device, since the roller shaft (04) of each conveyor roller (03) is projected to the outer surface of the side frame (02), the appearance is bad, and the side surface has many irregularities, which makes it difficult for other objects. There is a risk of getting caught.

For this reason, it is desirable to attach a cover plate that covers the roller shaft (04) to the side frame (02), but in this case, for maintenance work such as inspection and repair of the bearing portion of the roller shaft (04). It is required that the cover plate be detachably attached.

In order to attach the cover device so that it can be easily attached and detached, it is conceivable, for example, to fix the magnet to the back surface of the cover plate so that it is magnetically held in place on the side frame. It is not preferable when the object to be conveyed is expensive and the object to be conveyed is magnetic, such as a floppy disk or a magnetic tape.

In order to solve this problem, an object of the present invention is to provide a side frame cover plate mounting device for a roller conveyor which has a simple structure and can be easily attached and detached.

[0012]

[Means for Solving the Problems]

 The present invention for achieving the above object is configured as follows.

In a roller conveyor in which both ends of a plurality of rollers are pivotally supported by a pair of side frames, a cover plate that at least partially covers the outer surface of the side frames is detachably attached to the side frames. A pair of elastically-flexible arm plates that are fixed to the outer surface of the side frame and that are elastically bendable, and the length direction of the side frame is set on the outer or inner surface of the tip of each arm plate. An inner support member having a facing ridge formed therein, and an elastically bendable member fixed to the inner surface of the cover plate corresponding to the inner support member and externally or internally fitted to a pair of arm plates of the inner support member. By having a pair of inwardly-directed arm plates, and engaging the inner or outer surface of the distal end portion of each arm plate with the ridges of the inner receiving member, both arm plates are connected to the inner receiving member of the inner receiving member. A side frame cover of a roller conveyor, comprising a pair of outer holders for preventing the pair of arm plates from coming off. Mounting device.

The arm plate of either the inner support or the outer support may be a rigid body. At least one of the inner support and the outer support is preferably formed by bending a leaf spring material into a substantially U-shape.

At the time of engagement, one pair of arm plates of either the inner support or the outer support inclines inward toward each other toward the tip, and the other pair of arm plates at the tip. It is better to expand towards it.

It is preferable to form the ridge by reversing and bending the tip of each arm plate. Further, the dimension of the inner receiver along the length direction of the side frame is preferably such that two outer receivers on the adjacent cover plates can engage in parallel.

[0017]

[Action]

 When installing the cover plate, make the outer receiver fixed to the cover plate face the corresponding inner receiver fixed to the side frame, press the cover plate and push the tip of the arm plate of each receiver. When the ridges formed in the opposite direction are fitted to each other so that the ridges ride over each other, the two struts will adhere to each other due to the elastic force, and the ridges of both ridges will abut and not separate. Being held, the cover plate is stably attached.

In order to remove the cover plate, the cover plate is further pressed toward the side frame to shift the position to the inside of the adjacent cover plate and move the cover plate in the lengthwise direction, so that one outer support Can be disengaged to the side of the inner receiver and then moved in the opposite direction to disengage the other receiver.

[0019]

【Example】

 FIG. 1 is a perspective view showing an essential part of an embodiment of the present invention, and FIG. 2 is a cross-sectional view seen from the length direction of a side frame.

In the roller conveyor, a pair of front and rear side frames (10) having a U-shaped cross section are installed in parallel with each other, and roller shafts (12 ) Is inserted into the shaft hole of the side frame (10) and is rotatably supported.

Each conveyor roller (11) is synchronously driven and rotated by an appropriate driving means as in the conventional example.

A plurality of inner receiving members (13) are fixed to the vertical portion of the outer surface of the side frame (10) with two sets of bolts and nuts (14).

The inner support member (13) has a pair of upper and lower arm plates (15) formed by bending a metal plate having an appropriate elasticity into a U-shape, and each arm plate (15) has an outer end. It is formed by forming a ridge (16) oriented in the length direction of the side frame (10) by reversing the direction and bending.

A plurality of inner receivers (13) are arranged along the side frame (10) at a pitch corresponding to the length of the cover plate (17) described below.

The cover plate (17) is formed of a relatively thin metal plate or the like, and a plurality of cover plates (17) are provided with a size appropriately dividing the entire length of the side frame (10).

Each cover plate (17) is formed in a U-shape by bending the upper and lower ends inward, that is, toward the side frame (10). The vertical width of the cover plate (17) is set smaller than the inner dimension of the side frame (10) so that it can be inserted into the side frame (10).

The outer holders (18) are fixed by spot welding to the inner surfaces near both ends of each cover plate (17). Instead of spot welding, bolts and nuts may be attached.

Similar to the inner receiver (13), the outer receiver (18) is formed by bending a metal plate having appropriate elasticity into a U-shape to form upper and lower arm plates (19), and The arm plate (19) is formed by bending the end of the arm plate (19) inward so as to form a ridge (16) formed on the inner support (13) and an opposite ridge (20).

The distance between the arm plates (19) of the outer support (18) is set to be almost the same as the interval between the arm plates (15) of the inner support (13) or set slightly smaller, and both are pressed together. At this time, the arm plate (19) of the outer support (18) is slidably brought into contact with the outer surface of the arm plate (15) of the inner support (13) to be fitted therein.

When the outer holders (18) at both ends of the cover plate (17) are fitted to the corresponding inner holders (13), respectively, and the cover plate (17) is pressed toward the side frame (10). , The arm plate (19) of the outer support (18) is outwardly deformed, and the arm plate (15) of the inner support (13) is inwardly deformed, so that the ridges (16) and ( 20) and over ride each other and engage.

FIG. 3 is a side view showing a state in which the inner support member (13) and the outer support member (18) are engaged with each other, and the projecting ridges (16) and (20) of both of them have passed over the opponent. They are abutted in position and fixed so as not to separate.

At this time, the arm plates (15) and (19) of both receivers (13) and (18) are slidably in contact with each other as shown in the figure, so that the elastic restoring force of the arm plates causes both receivers (13) A component force in the direction of separating (18) is generated, and the ridges (16) and (20) are pressed against each other.

Therefore, the cover plate (17) can be stably held and mounted at the position where the ridges (16) and (20) of both the receivers (13) and (18) contact.

As shown in FIG. 1, the width dimension of the inner receiving member (13), that is, the dimension in the lengthwise direction of the side frame is the same as that of the two adjacent cover plates (17) and (17 ′). Two outer receivers (18) (18 ') installed near each end were installed in such a length that they could be engaged side by side and the cover plates (17) (17') were adjacent to each other. In this state, it is preferable to set each outer receiver (18) (18 ') so as to be substantially aligned with the end of the inner receiver (13).

FIGS. 4 and 5 are explanatory views showing the procedure for removing the cover plate (17) mounted by the above-mentioned procedure, FIG. 4 is a sectional side view, and FIG. 5 is a plan view.

When removing the cover plate (17), first, the cover plate (17) to be removed is pressed inward, and the ridges (20) of the outer retainers (18) at both ends are removed. Separate from the ridges (16) of the inner support (13).

As a result, the cover plate (17) moves from the mounting position shown by the chain double-dashed line to the position shown by the solid line, and is located inside the adjacent cover plate (17a) at the mounting position.

Then, when the cover plate (17) is slid in either the left or right direction indicated by the arrow A in FIG. 5, the outer receiver (18) at the rear end side in the moving direction causes the corresponding inner receiver (18). Separate to the side of 13).

At this time, the outer receiver (18 ') on the front end side can slide toward the central portion of the inner receiver (13'), and the front end of the cover plate (17) has an adjacent cover plate (17). Since the position is displaced inward of (17a), the cover (17) is movable in the length direction.

The outer support (18) on the rear end side is disengaged from the corresponding inner support (13), and the rear end of the cover plate (17) is adjacent to the rear end as shown by arrow B. The outer cover (18 ') on the front end side is disengaged from the corresponding inner receiver (13') by rotating the cover plate (17b) outwardly and moving it in the direction opposite to the arrow A. ) Can be removed.

In the embodiment described above, the fitting relationship between the two receiving members (13) and (18) is such that the outer receiving member (18) is fitted to the outer surface of the inner receiving member (13). Conversely, the inner receiver (13) may be fitted to the outer surface of the outer receiver (18).

In that case, the ridges (16) and (20) formed on the respective arm plates (15) and (19) are in the opposite directions to those of the above-described embodiment, and the ridges (16) of the inner support member (13) are opposite. It goes without saying that the ridges (20) of the outer receiving member (18) should be formed inward and the protrusions (20) of the outer receiving member (18) should be formed outward.

Further, only one of the arm plate (15) of the inner support (13) and the arm plate (19) of the outer support (18) is elastically bendable, and the other is a rigid body. Good.

[0044]

[Effect of device]

 (a) In a roller conveyor having a structure in which the roller shaft projects to the outer surface of the side frame, a cover plate that covers the roller shaft can be attached to improve the appearance and eliminate unevenness to improve safety. .

(B) Since the cover plate is held by the elastic clip-type receiver, the attaching / detaching operation can be performed with one touch without using any tool.

(C) Since the cover plate is not held by the magnetic force of the magnet, the cover plate can be applied to an article which should avoid the influence of the magnetic force, for example, a roller conveyor that conveys a floppy disk or a magnetic tape without any trouble. .

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the side frame of the embodiment as seen from the length direction.

FIG. 3 is a front view showing a fitted state of an inner receiving member and an outer receiving member.

FIG. 4 is a cross-sectional view showing movement of a cover plate when detaching.

FIG. 5 is a plan view of the same.

FIG. 6 is a side view of an essential part showing an example of a conventional roller conveyor.

FIG. 7 is a vertical sectional front view of the same.

[Explanation of symbols]

 (10) Side frame (11) Conveyor roller (12) Roller shaft (13) Inner receiver (14) Bolt and nut (15) Arm plate (16) Ridge (17) Cover plate (18) Outer receiver (19) ) Arm plate (20) Ridge (01) Frame (02) Side frame (03) Conveyor roller (04) Roller shaft (05) Drive shaft (06) Pulley (07) Belt (08) Sprocket or pulley (09) Motor (010) Sprocket or pulley (011) Chain or belt

Claims (6)

[Scope of utility model registration request] 1. A roller conveyor in which both ends of a plurality of rollers are pivotally supported by a pair of side frames, and a cover plate for detachably attaching at least a part of an outer side surface of the side frames to the side frames. And having a pair of elastically-flexible arm plates facing outward and fixed to the outer surface of the side frame, and the length direction of the side frame on the outer or inner surface of the tip of each arm plate. An inner support member having a facing ridge formed therein, and an elastically bendable member fixed to an inner surface of a cover plate corresponding to the inner support member and externally or internally fitted to a pair of arm plates of the inner support member. While having a pair of inward-facing arm plates, engaging both the inner or outer surface of the tip of each arm plate with the ridges of the inner receiving member allows both arm plates to be attached to the pair of inner receiving members. A pair of side frame cover plates for a roller conveyor, comprising a pair of outer receivers for preventing the arms from coming off the arm plates. Location. 2. The side frame cover plate mounting device for a roller conveyor according to claim 1, wherein one of the inner support plate and the outer support plate is a rigid body. 3. The roller conveyor side according to claim 1, wherein at least one of the inner support and the outer support is formed by bending a leaf spring material into a substantially U-shape. Frame cover plate mounting device. 4. A pair of arm plates of the inner support and the outer support at the time of engagement are inclined inwardly toward each other toward the tip, and the other pair of arm plates are: The side frame cover plate mounting device for the roller conveyor according to any one of claims 1 to 3, wherein the side frame cover plate mounting device is inclined so as to widen toward the tip. 5. The side frame cover plate mounting device for a roller conveyor according to claim 1, wherein the ridges are formed by reversing and bending the tip of each arm plate. 6. The size of the inner receiver along the lengthwise direction of the side frame is set to a length at which two outer receivers of adjacent cover plates can engage in parallel. An apparatus for mounting a side frame cover plate of a roller conveyor as described in (1).