KR102248678B1 - A device for opening and closing ceilings of pallet for transporting automotive parts - Google Patents

Abstract

The present invention relates to a ceiling opening and closing device of a pallet for transferring automotive parts. The ceiling opening and closing device includes: a base provided to be transferable by a forklift, having a flat upper side; vertical supporters formed upward by a predetermined height in each corner of the base; a side cover for preventing goods located in an upper part of the base from departing outward by covering or blocking a space between the supporters; horizontal connection bars horizontally connecting the supporters in an upper part of the supporters; a blinder holder having fixing brackets fixed to an upper part of one end of each of the horizontal connection bars on both sides, having a blind winding pipe provided between both the fixing brackets to have a blind of a predetermined length wound thereon, and controlling withdrawal pressure of the blind while controlling a spring force of a coil spring elastically installed in the blind winding pipe through the rotation of a tensioner axially combined with an outer part of one of the fixing brackets; a cylindrical guide pipe axially supported by the horizontal connection bars on both sides in front of the blind holder; guide rails fixed to upper surfaces of the horizontal connection bars on both sides respectively in front of the guide pipe to guide the movement of both ends of the blind; and a blind fixing means formed in the middle of the length of a horizontal connection bar corresponding to the blind holder and locking and unlocking a locking bar formed at a withdrawal end of the blind while rotating by a predetermined angle through contact with the locking bar. Therefore, the present invention is capable of maintaining loaded automotive parts more stably and hygienically.

Description

A device for opening and closing ceilings of pallet for transporting automotive parts}

The present invention relates to a ceiling opening/closing device for a pallet for transporting automobile parts, and more particularly, by pulling the tip of a blind wound around the outer circumferential surface by an elastic force of a spring at one side of the upper end of the pallet for transporting, it is caught by a fixing means formed on the other side. The ceiling of the pallet for transportation of automobile parts that allows the upper ceiling to be opened and closed by automatically winding the blind winding roll by the restoring force of the spring when the upper part is covered, and the locking state of the blind tip is released from the fixing means. It relates to an opening and closing device.

In general, a pallet for transport refers to an unloading support used for unloading, storage, and transport by collecting cargo in units of a certain quantity.It is configured to be easy to transport using a forklift after loading the goods.Depending on the material, wooden pallets, It is divided into plywood pallets, steel pallets, and HDF (High Density Fiber Board) pallets.

Among these pallets, only the base on which the goods are placed is formed, while the base is mostly made of a square shape to be standardized.

In order to secure the safety of the items to be loaded on the base, only vertical support frames composed of front, rear, left and right frames are mounted, or the upper ends of each support frame are connected by a horizontal connection frame.

In the support frame for pallets of Registration Patent No. 0860330 (2008.09.19.), the upper part between the vertical support frames is connected by a single grid frame, and fastening grooves are formed on the upper and lower surfaces of one end and the upper surface of the other end of the single grid frame. In the lower part of the other end, a neighboring extension piece having an upward fastening protrusion is formed together with a fitting bracket, but the first fastening protrusion is fitted in the upper fastening groove of the other end and the upper fastening groove of one end of the adjacent single grid frame. The locking mechanism having the second fastening protrusion has been hinged.

In this way, the support frame is covered with a base for seating the load, and a plate material such as a beam or acrylic plate that prevents the load loaded on the base from escaping to the outside at a certain height from this base, and only the upper part is opened. Thus, the load is pulled out through the upper part.

In particular, in the automated automobile manufacturing process, relatively heavy and large-sized parts such as engines and transmissions are transported and then taken out by a robot for assembly.

However, if the upper part of the support frame is kept open, dust scattering in the workplace will contaminate the vehicle parts inside the support frame. There is an uncomfortable problem.

(Document 1) Registered Patent No. 0860330 (2008.09.19.)

Accordingly, the present invention is to solve the above problems, and the present invention allows the blinds to be pulled out along the rails on both sides by the elasticity of the spring from the winding wheel so that the upper part is opened and closed. The main purpose is to provide a ceiling opening/closing device for a pallet for transporting automobile parts, which enables the maintenance of safety and cleanliness.

A ceiling opening/closing device for a pallet for transporting automobile parts according to the present invention for achieving the above object comprises: a base provided to be transportable by a forklift while having an upper surface of a flat plate; A vertical support formed at a predetermined height upward from each corner of the base; A side cover that covers or is blocked between the supports so that the loads loaded on the base do not deviate outward; A horizontal connecting rod for horizontally connecting the supports at the upper part of the support; A fixed bracket is fixed to the upper part of each end of the horizontal connecting rod on both sides, and a blind winding tube is provided in which a blind is wound of a certain length between the fixed brackets, and the tensioner shaft-coupled to the outside from the fixed bracket on one side is rotated. A blind holder configured to adjust the pulling pressure of the blind while adjusting the spring force of the coil spring burnt inside the blind winding pipe; A cylindrical guide pipe axially supported by horizontal connecting rods on both sides in front of the blind holder; Guide rails fixed to upper surfaces of the horizontal connecting rods on both sides in front of the guide pipe to guide the movement of both ends of the blinds; It is formed in the middle of the length of the horizontal connecting rod corresponding to the blind holder, and a blind fixing means for locking and unlocking the locking bar while rotating at a predetermined angle by contact with the locking bar formed at the withdrawal end of the blind.

Between the blind winding pipe and the fixing brackets on both sides, a spring fixture is provided on one side of which one end of the coil spring is fixed, and the tensioner is shaft-fixed on the other side and inserted into the blind winding pipe to fix the other end of the coil spring. It has a rotation shaft guide to guide the rotation shaft to be guided.

The spring fixture and the rotation shaft guide are made of MC nylon material.

The tensioner is fixedly connected to the rotation shaft by bolting from an outer circumferential surface, and the rotation shaft is fixed by a fixing bolt fastened from an upper portion of the fixing bracket.

The guide rail is formed in a hollow tubular shape so that a certain height is opened to the surfaces facing each other, and both ends of the blinds have guide protrusions formed higher than the height of the open opening of the guide rail, and the guide The protrusions are formed in a zipper shape to be separated at regular intervals along the length direction.

The blind fixing means is formed in a shape of a hook so that one end is rotatably supported on a lever guide that is fixed in parallel with a certain distance apart from the horizontal connecting rod, and has a locking groove so that the locking bar formed at the withdrawal end of the blind is caught. It is to be provided as a locking lever to form.

In the ceiling opening/closing device of the pallet for transporting automobile parts according to the above configuration, the withdrawal end of the blind is simply pulled toward the blind fixing means so that the locking bar is hooked on the ring to cover the upper part of the support and block the inflow of foreign matter from the outside. Automobile parts loaded inside can be kept more stable and hygienic.

In addition, according to the present invention, the elasticity of the coil spring provided inside the blind winding pipe is adjusted according to the withdrawal amount of the blind, so that the upper surface of the blind can be safely opened and closed by the robot, thereby saving labor costs.

1 is a side cross-sectional view illustrating a ceiling opening and closing device of a pallet for transporting automobile parts according to the present invention
Figure 2 is a plan view of the ceiling opening and closing device of the pallet for transporting automobile parts according to the present invention
3 is an enlarged plan view of a main part illustrating a configuration in which one side of a blind holder is separated from a ceiling opening/closing device of a pallet for transporting automobile parts according to the present invention.
4 is a side view illustrating an enlarged view of a drawing end of a blind in a ceiling opening/closing device of a pallet for transporting automobile parts according to the present invention
5 is an enlarged view of a main part illustrating a configuration of a guide pipe in a ceiling opening/closing device of a pallet for transporting automobile parts according to the present invention.
6 is an enlarged view illustrating a configuration in which the side end of the blind is connected to the guide rail in the ceiling opening/closing device of the pallet for transporting automobile parts according to the present invention.
Figure 7 is a side view showing an enlarged example of the blind fixing means in the ceiling opening and closing device of the pallet for transporting automobile parts according to the present invention
8 is an enlarged front view illustrating a configuration in which a gripping part is formed on a blind fixing means in a ceiling opening/closing device for a pallet for transporting automobile parts according to the present invention.
9 is an operational state diagram illustrating a configuration in which the locking bar is locked to the locking lever by the ceiling opening/closing device of the pallet for transporting automobile parts according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the embodiments.

The scope of the present invention should not be construed as being limited by the embodiments described in the text.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the description of the embodiment, the same reference numerals are assigned to the same components, and the description of the same reference numerals will be omitted in some cases.

1 is a side cross-sectional view illustrating a ceiling opening/closing apparatus for a pallet for transporting automobile parts according to the present invention, and FIG. 2 is a plan view of a ceiling opening/closing apparatus for a pallet for transporting automobile parts according to the present invention.

As illustrated, the ceiling opening and closing device of the pallet for transporting automobile parts of the present invention is largely based on the base 10, the support 20, the side cover 30, the horizontal connecting rod 40, the blind holder 50, and the guide pipe 60. ) And a guide rail 70 and a blind fixing means 80.

In the present invention, the base 10 is composed of a flat plate that allows the vehicle parts to be loaded on the top surface, and the base 10 is spaced apart from the ground to a certain height so that it can be transported by a forklift.

Accordingly, the base 10 may be widely mounted on the ground under a certain height, or the support means 11 may be formed at a certain height at a corner portion, or a wheel may be connected so as to be able to move by itself.

The base 10 of the flat plate is provided with a vertical support 20 having a predetermined height at each corner.

The vertical support 20 is formed in a rectangular rod or tubular shape so that the lower end is firmly fixed to each corner of the base 10 by welding or the like.

In addition, when the base 10 is formed to have a predetermined length longer than the width in the length direction, it is more preferable that the support 20 is also provided in the middle portion in the length direction.

The side cover 30 is formed so that the loads loaded on the base 10 do not deviate from the base 10 on the mutually facing surfaces of the respective supports 20 provided on the base 10.

At this time, the side cover 30 may be formed as a square material that diagonally connects between the supports 20 on both sides, or may be covered as a plate material such as acrylic between the supports 20.

Such a base 10, the support 20, and the side cover 30 are substantially the same as the previous configuration.

Accordingly, in the present invention, a horizontal connecting rod 40 is connected to a surface facing between the supports 20 at the upper end of each support 20.

That is, the horizontal connecting rod 40 is formed of a rectangular material such as the support 20, but the support 20 is formed vertically, whereas the horizontal connecting rod 40 is configured to connect the support 20 horizontally.

The horizontal connecting rod 40 may be formed on the upper end of the support 20 or may be formed on the same horizontal line at a predetermined height from the upper end of the support 20.

However, it is more preferable that the horizontal connecting rod 40 is formed so that the outer diameter is not larger than the outer diameter of the support 20.

Among these horizontal connecting rods 40, a blind holder 50 is provided between one end of a pair of horizontal connecting rods 40 facing each other.

The blind holder 50 of the present invention includes a fixing bracket 51 fixed to an upper surface of one end between a pair of horizontal connecting rods 40 facing each other, and a blind winding provided between the fixing brackets 51 on both sides The tube 52, the blind 53 wound around the blind winding tube 52, the tensioner 54 axially coupled to the outside from the fixed bracket 51 on one side, and the blind winding tube 52 It is a configuration consisting of a combination of coil springs 55 that are burnt so that the spring force is adjusted by the tensioner 54 inside.

In other words, the blind holder 50 is a blind winding pipe 52 having a predetermined length of the blind 53 wound around the outer circumferential surface so as to be rotatable between the fixing brackets 51 respectively fixed to the horizontal connecting rods 40 on both sides. To be provided, the blind winding pipe 52 is to be fixed to each of the spring fixture 56 and the rotation shaft guide 57 on both sides.

Therefore, these spring fixtures 56 and the rotating shaft guide 57 are fixedly connected to the blind winding pipe 52 and rotate together with the blind winding pipe 52 by the winding or drawing action of the blind 53.

At this time, the inside of the blind winding pipe 52 is provided with a coil spring 55 in the longitudinal direction, and one end of the coil spring 55 is fixed to a spring fixture 56 connected to one side of the blind winding pipe 52 The other end of the coil spring 55 is connected to the inner end of the rotation shaft 58 passing through the rotation shaft guide 57 from the other side of the blind winding tube 52, and the rotation shaft 58 simultaneously connects the fixing bracket 51 It penetrates and is fixed by the tensioner 54 and the pin coupling.

The rotation shaft 58 passing through the fixing bracket 51 has a flange-shaped washer 580 having a predetermined diameter on a part of the outer circumferential surface as shown in FIG. 3 to be integrally formed so that the fixing bracket 51 and the rotation shaft guide 57 are formed on both sides. Make sure that it adheres closely.

In this configuration, the tensioner 54 is fixedly connected to the rotation shaft 58 by bolting to the outer circumferential surface, and the rotation shaft 58 is fixed by a fixing bolt 510 fastened from the top of the fixing bracket 51. Make the rotation shaft 58 fixed.

On the other hand, it is more preferable that the spring fixture 56 and the rotation shaft guide 57 are made of an MC nylon material.

The blind 52 wound around the blind winding tube 52 is inserted and fixed through an insertion groove (not shown) having one end cut in the longitudinal direction on the outer peripheral surface of the blind winding tube 52, and both ends of the blind 52 In this, the guide protrusion 530 is formed in a zipper shape with a thickness equal to or thicker than the thickness of the blind 52.

In particular, the withdrawal end of the blind 52 is in close contact between the upper angle 531 and the lower flat iron 532 as shown in FIG. 4 to be fixed simultaneously by bolting or riveting between them, and at this time, the angle 531 ), the rail separation prevention guide 533 is fixed by bolting fastening or riveting at both ends.

However, a vertical surface of a certain length is omitted in the middle portion of the angle 531 in the longitudinal direction, and between the vertical surfaces on both sides of the omitted portion, the locking bar is slightly upwardly spaced from the bottom surface or the bottom surface of the angle 531 Let (534) be fixed.

In front of the blind winding pipe 52 on which the blind 52 is wound, both ends are fixed to the horizontal connecting rods 40 on both sides so that the circular guide pipe 60 is axially fixed as shown in FIG. 5.

At this time, the guide pipe 60 is more preferably formed so that the upper outer circumferential surface is formed on the upper than the lower outer circumferential surface of the blind winding pipe (52).

Therefore, in the blind winding pipe 52, it is preferable that the blind 52 is drawn out from the lower outer circumferential surface.

The blinds 52 drawn out from the blind winding pipe 52 move along the guide rail 70 so that both ends are fixed to the horizontal connecting rods 40 on both sides by bolting or riveting as shown in FIG. 6. do.

That is, the guide rail 70 has one end fixed to the horizontal connecting rod 40, and is formed in an empty tubular shape by being opened at a certain height apart on a surface facing each other, and a blind 52 ) Of the guide protrusion 530 is inserted to prevent separation, while the blind 52 is stably moved along the guide rail 70.

On the other hand, in the middle of the length of the horizontal connecting rod 40 corresponding to the blind holder 50, a blind fixing means 80 is provided to allow the locking bar 534 formed at the withdrawal end of the blind 53 to be hooked. .

As shown in FIG. 7, the blind fixing means 80 forms a lever guide 81 on both sides by spaced apart a predetermined distance, and the lever guide 81 has one end rotatably supported while the other end is a blind 53 A locking lever 82 is provided in the shape of a hook forming a locking groove 820 that allows the locking bar 534 of) to be caught.

The locking lever 82 prevents the end forming the locking groove 820 from tilting downward by more than a certain angle by allowing the lower end portion to be in close contact with the upper surface of the horizontal connecting rod 40 at an eccentric position, but allows upward rotation.

In particular, the locking lever 82 has an upper end protruding to one side as shown in FIG. 8 to form a gripping portion 83 so that it can be easily operated manually or by a robot.

Therefore, when the blind 53 is pulled out as much as possible, the locking bar 534 at the pull-out end may be locked by the locking lever 82 of the blind fixing means 80, and the lock can be simply released by the gripping part 83. There can be.

As in the above configuration, the operation and effect of the ceiling opening and closing device of the pallet for transporting automobile parts according to the present invention will be described as follows.

The ceiling opening/closing device of the pallet for transporting automobile parts of the present invention is characterized in that it is possible to open and close not only the side surface but also the upper portion, that is, the ceiling, and can be easily opened and closed by a robot in a manual or automated process.

The blind 53 of the present invention has a pull-out elasticity due to the twist elasticity of the coil spring 55 in the blind winding pipe 52.

That is, the coil spring 55 has one end fixed to the spring fixture 56, the other end fixed to the rotation shaft 58, and the rotation shaft 58 is fixed to the tensioner 54 by bolting, so the tensioner 54 When the rotation shaft 58 rotates, the coil spring 55 rotates in the radial direction, and at this time, the other end of the coil spring 55 is already fixed to the spring fixture 45, so the coil spring 55 is twisted. In the direction of losing, the twist becomes more twisted or the twist becomes loose.

Therefore, the tensioner 54 is rotated in the direction in which the coil spring 55 is twisted so that it has a constant twist elasticity, and then the rotation shaft 58 passing through the fixing bracket 51 by fastening bolts from the top of the fixing bracket 51 ) Is fixed so as not to rotate any more so that the rotational elasticity of the blind winding tube 52 is set to a required degree.

In such a state, when the lead end of the blind 53 to be wound while surrounding the outer circumferential surface of the blind winding tube 52 is drawn to the other side, it is fixed to the blind winding tube 52 by the rotation of the blind winding tube 52. The coil spring 55 connected to the spring fixture 56 further increases the twist elasticity.

The blind 53 is drawn out from the lower outer circumferential surface of the blind winding pipe 52 as shown in FIG. 5, and a guide pipe 60 is provided in front of the blind holder 50 so as to be axially supported by the horizontal connecting rods 40 on both sides. While so as to be developed in a direction corresponding to the blind winding pipe 52 through the upper portion of the outer circumferential surface of the guide pipe 60.

Since the guide rails 70 are fixed to each of the horizontal connecting rods 40 on both sides in front of the guide pipe 60, the guide protrusions 530 formed on both side ends of the blind 53 as shown in FIG. By being inserted into the guide rail 70 so as to prevent separation, the blind 53 is unfolded to prevent sagging along the guide rail 70.

When the blinds 53 are deployed, the withdrawal ends are fixed to the angle 531 and the flat iron 532 of a certain width, and can be stably moved along the upper surface of the guide rail 70 by the rail separation prevention guide 533. At this time, the angle 531 fixed at the top at the withdrawal end of the blind 53 is formed in a b-shape so that the upwardly bent portion can be manually or automatically held so that the blind 53 can be easily deployed. And, a locking bar 534 formed in a circular cylindrical shape or a rod shape by omitting a part of the vertical bent portion at the center of the length of the angle 531 is a blind fixing means formed on the horizontal connecting rod 40 corresponding thereto It is caught by the locking lever 82 of the 80 so that the movement in the return direction is locked.

That is, when the withdrawal end of the blind 53 is opened to the maximum, the locking bar 534 pushes the end of the locking lever 82 of the blind fixing means 80 as shown in FIG. 9, while the end of the locking lever 82 is naturally At the moment when the locking bar 534 is positioned in the locking groove 820 of the locking lever 82, the end of the locking lever 82 rotates downward at a certain angle, and the locking bar 534 from the locking groove 820 It will prevent the deviation of the.

In this way, the locking bar 534 is automatically locked by the locking lever 82 by the operation of simply unfolding the withdrawal end of the blind 53 toward the blind fixing means 80. Even in a state in which the generated restoring elasticity of the coil spring 55 is increased as much as possible, a stable locked state is maintained.

Automobile parts placed in the base 10 covered with the ceiling by the blinds 53 can prevent any foreign matter from entering, such as dust, so that even if they are stored for a long time, they can be safely protected.

In addition, the operation of removing the blinds 53 for assembly by transferring the stored automobile parts to the assembly line is also rotated upward at a certain angle by simply operating the locking lever 82 by the gripping unit 83 manually or by a robot. As soon as the locked state is released, the withdrawal end of the blind 53 is automatically moved to the blind holder 50 side by resilience by the coil spring 55 of the blind holder 50.

When the blinds 53 are returned, the flange-shaped washers 580 integrally formed on the rotation shaft 58 are in close contact with the fixing bracket 51 on one side and the rotation shaft guide 57 on the other side. Since it acts to attenuate the returned rotational force, even if a strong elastic restoring force is applied by the coil spring 55, the winding of the blind 53 can be made stably, thereby preventing a sudden return impact.

As described above, the present invention provides a very useful effect that enables easy operation of blinds or windings manually or automatically by a robot so that the vehicle parts placed inside can be more safely protected from the outside as well as the convenience of operation. There is an advantage.

As described above, the present invention is not limited to the described embodiments, and it is apparent to those of ordinary skill in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, it should be said that such modifications or variations belong to the claims of the present invention.

10: base
20: support
30: side cover
40: horizontal connecting rod
50: blind holder
51: fixing bracket 52: blind winding pipe
53: blind 54: tensioner
55: coil spring 56: spring fixture
57: rotation shaft guide 58: rotation shaft
60: guide pipe
70: guide rail
80: blind fixing means
81: lever guide 82: locking lever
83: gripping part

Claims (6)

A base having an upper surface made of a flat plate and provided to be transportable by a forklift;
A vertical support formed at a predetermined height upward from each corner of the base;
A side cover that covers or is blocked between the supports so that the loads loaded on the base do not deviate outward;
A horizontal connecting rod for horizontally connecting the supports at the upper part of the support;
A fixed bracket is fixed at the upper part of each end of the horizontal connecting rod on both sides, and a blind winding tube is provided in which a blind is wound of a certain length between the two fixing brackets, and the rotation of the tensioner axially coupled to the outside from the fixing bracket on one side is provided. A blind holder configured to adjust the pulling pressure of the blind while adjusting the spring force of the coil spring burnt inside the blind winding pipe;
A cylindrical guide pipe axially supported by horizontal connecting rods on both sides in front of the blind holder;
Guide rails fixed to upper surfaces of the horizontal connecting rods on both sides in front of the guide pipe to guide the movement of both ends of the blinds;
A blind fixing means that is formed in the middle of the length of the horizontal connecting rod corresponding to the blind holder and rotates a predetermined angle by contact with the locking bar formed at the withdrawal end of the blind and locks and unlocks the locking bar;
A ceiling opening and closing device for a pallet for transporting automobile parts made of a combination of.
The method according to claim 1,
Between the blind winding pipe and the fixing brackets on both sides, a spring fixture is provided on one side of which one end of the coil spring is fixed, and the tensioner is shaft-fixed on the other side and inserted into the blind winding pipe to fix the other end of the coil spring. A ceiling opening and closing device for a pallet for transporting automobile parts having a rotating shaft guide to guide the rotating shaft to be guided.
The method according to claim 2,
The spring fixture and the rotation shaft guide is a ceiling opening and closing device for a pallet for transporting automobile parts to be made of an MC nylon material.
The method according to claim 2,
The tensioner is fixedly connected to the rotating shaft by bolting from an outer circumferential surface thereof, and the rotating shaft is fixed to the rotating shaft by a fixing bolt fastened from an upper portion of the fixing bracket.
The method according to claim 1,
The guide rail is formed in an empty tubular shape so that a certain height is opened to the surfaces facing each other, and both ends of the blinds have guide protrusions formed higher than the height of the open opening of the guide rail, and the guide A ceiling opening and closing device for a pallet for transporting automobile parts that is formed in the shape of a zipper tooth that allows the projections to be separated at regular intervals along the length direction.
The method according to claim 1,
The blind fixing means is formed in a hook shape so that one end is rotatably supported on a lever guide that is fixed in parallel with a certain distance apart from the horizontal connecting rod, and has a locking groove so that the locking bar formed at the withdrawal end of the blind is caught. A ceiling opening and closing device for a pallet for transporting automobile parts to be provided as a locking lever to be formed.

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