JP2000289816A - Connecting structure for strut and beam material in framework shelf - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reinforce a strut without increasing a hole number or welding, and prevent coming-off of a beam material in a framework shelf equipped with a strut having an opening extending vertically. SOLUTION: Plural locking parts 15 are formed in the vertical direction on the fitting surface of a strut 10 having nearly a U shaped cross section having an opening extending vertically. Locking pawls 33 are formed at a pitch same as that of the locking parts 15, on the L-shaped gusset 32 in the end part of a main beam 30, and the beam 30 is installed in a hooked condition to the strut 10 by locking parts 15 and the pawls 33. A fixing pin 50 for fixing the strut 10 and the beam 30 in a hooked condition has two sets of regulating pins 52a and 52b on a pin rod 51, and is inserted in the penetrating condition of the pin 50 through the gasset 32 and the strut 10, then is turned about 90 deg. to be assembled; and in this inserted condition, two sets of the pins 52a and 52b nip a nipping side wall 13 to be made into a connected condition via the pin 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure between a beam and a column installed between columns in a frame shelf for storing a load.

[0002]

2. Description of the Related Art In a frame shelf (rack) of this type, a plurality of (at least four) columns are erected, and a main beam is installed between the columns in a state extending in the width direction of the shelf. Each shelf portion is formed by a plurality of sub-beams fixed between the main beams so as to extend in the depth direction of the shelf.
By placing a load on this shelf, the load is stored in the frame shelf.

Conventionally, as a connecting structure between a column of a frame shelf of this kind and a main beam, a structure shown in FIG.
No. -8336. Mounting holes 72 are formed at a predetermined pitch along the vertical direction in the front part (front part) 71 a of the support column 71, and a retaining pin 73 is inserted into the middle part of each of the mounting holes 72 arranged in the vertical direction. Hole 74 is formed. The two mounting holes 72 are vertically symmetrical and are symmetrically formed two at the same height. At the end of the main beam 75, a mounting portion 76 is provided.
Is fixed. The mounting portion 76 is formed in an L-shaped cross section, and hooks 76a that can be locked in the mounting holes 72 of the support columns 71 are arranged in a vertical direction at a predetermined pitch. In addition, a hole 77 is formed in an intermediate portion of the adjacent hook 76a, through which the retaining pin 73 is inserted. As shown in FIG. 5, a rib 78 is provided on the periphery of the mounting hole 72 except for the lower end.
Are bent inside the support by burring. And the main beam 75 has a plurality of hooks 76a.
Are locked in the plurality of mounting holes 72, and the holes 77, 7
4 is attached to the column 71 with the retaining pin 73 inserted.

[0004]

By the way, the pillars constituting this kind of frame shelf are usually formed into a cylindrical shape by bending (roll forming) a steel plate. As shown in FIG. On the back surface, there was an opening 78 extending over the entire upper and lower areas. In the case of a pillar, a structure having an opening 78 is adopted so that it can be sandwiched when another frame material such as a lattice material is connected and fixed with bolts or the like. The bolts fastened to the pillars for attaching a frame material such as a lattice material connect the pillars 71 on both sides of the opening 78, so that the strength of the pillars 71 is improved to some extent but is not sufficient. Therefore, conventionally, as shown in the figure, a reinforcing plate 79 is welded to the column 71 to connect both sides of the opening 78 so as to secure the strength of the column 71.

However, when the reinforcing plate 79 is welded, the welded portion of the column 71 is affected by heat. Therefore, adverse effects of heat are unavoidable, for example, thermal distortion due to thermal stress during welding remains in the welding portion of the column, and there is a concern that the strength of the welding portion of the column 71 may be reduced due to heat during welding. Problem. For this reason, we wanted to avoid welding a reinforcing plate to reinforce the column as much as possible.

In addition to welding the reinforcing plate, other methods for reinforcing the column include increasing the thickness of the column and fixing the reinforcing plate with bolts or the like. However, when the thickness of the column is increased, the weight of the column is increased and the burden on the assembling work is increased. In addition, the workability when bending the plate material into the column is reduced, and the dimensional accuracy of the column is reduced. There is a problem that the material cost is high. Further, when the reinforcing plate is fixed to the column with bolts or the like, the number of holes drilled in the column increases because bolt insertion holes are required, which acts in the direction of weakening the strength of the column, and also increases the bolt's strength. I am worried about loosening. Therefore, the reinforcing plate 79 as shown in FIG.
At present, measures have been taken to reinforce by welding.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and an object of the present invention is to reinforce a column in a frame shelf provided with a column having an opening extending vertically without increasing the number of holes or welding. An object of the present invention is to provide a connecting structure between a support and a beam in a frame shelf that can prevent the beam from coming off.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, there are provided a plurality of columns having a substantially U-shaped cross section having openings extending vertically, and a beam member is provided between the columns. In the frame shelf on which is erected, hooking means for hooking and supporting the end of the beam material on the support, and hooking the beam material hooked and supported on the support by the hooking means. A fixing pin for retaining the fixing pin, wherein the fixing pin is attached to the support so as to penetrate in the width direction of the opening, and two positions of the support engaging with the fixing pin are formed in the opening. A regulating means is provided for regulating the position of the fixing pin so as not to be relatively displaced in the width direction.

According to a second aspect of the present invention, in the first aspect of the present invention, the restricting means restricts movement of two positions of the support column engaged with the fixing pin in the axial direction of the fixing pin. A restricting portion formed on the fixing pin as possible.

According to a third aspect of the present invention, in the second aspect of the present invention, the restricting portion is configured to be capable of holding the two side walls, which are two places of the column, respectively, with the side walls of the fixing pin. One set is provided at a corresponding position.

According to a fourth aspect of the present invention, in the second or third aspect of the present invention, the fixing pin engages with the support post at two positions by rotating about the axis of the fixing pin. Is provided so that the presence / absence can be switched.

According to the fifth aspect of the present invention, the first to fourth aspects are provided.
In the invention described in any one of (1) to (4), the fixing pin is inserted into two end side walls facing each other across the opening of the column.

According to the first aspect of the present invention, both ends of the beam member are hooked and supported on the column by the hooking means, and the beam member and the column are hooked by the fixing pin. Is stopped. At this time, the fixing pin is penetrated by the column in the width direction of the opening. Two positions (that is, two side walls located on both sides in the opening width direction of the support) of the support engaging with the fixing pin are fixed by the restricting means so as not to be displaced relative to the fixing pin in the width direction of the opening. Connected via pins. For this reason, the support column is reinforced using the retaining pin for retaining.

According to the second aspect of the present invention, when the fixing pin is inserted into the support, the two portions of the support engaging with the fixation pin are fixed to the shaft with respect to the fixation pin by the restricting portion formed on the fixation pin. The movement in the direction is regulated. Since the regulating part is provided integrally with the fixing pin, it is possible to regulate the position of the two positions of the support with respect to the fixing pin with the trouble of the usual insertion work when inserting the fixing pin to the support. Become.

According to the third aspect of the present invention, the two side walls of the column are held by the restricting portion of the fixing pin. Therefore, the column is reinforced both in the direction of opening the opening and in the direction of closing the opening.

According to the fourth aspect of the present invention, by rotating the fixing pin in the inserted state, the presence / absence of the engagement of the restricting portion with the both side walls of the column can be switched. That is,
The fixed pin can be inserted or removed by positioning the fixed pin at a position (rotation angle) where it cannot be engaged with the restricting part. When the fixed pin is assembled to the support, the fixing pin can be engaged with the restricting part. At an appropriate position (rotation angle). For this reason, assembling / removing of the fixing pin becomes easy.

According to the invention described in claim 5, according to claim 3,
Or, in addition to the effect of the invention described in 4, since the fixing pin is inserted into the two end side walls facing each other across the opening of the support,
Since the two side walls of the column are connected near the opening end via the fixing pin, the column is efficiently reinforced.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A frame shelf embodying the present invention will be described below with reference to FIGS. FIG. 1 shows a frame shelf. The frame shelf (rack) 1 is a pallet rack used for storing luggage carried by, for example, a forklift. The frame shelf 1 is provided with a plurality of columns 10 provided in the front and rear (depth direction) and left and right (width direction (continuous direction)).
And a lattice (brace) 20 disposed between the front and rear of the support 10, a main beam 30 as a beam material horizontally disposed on each side of the support 10, two on each side, and And a plurality of sub-beams 40 disposed between the main beams 30 facing each other. A leg device (not shown) is provided at the lower end of each column 10 as needed.

As shown in FIG. 2A, the column 10 is formed in a substantially U-shaped cross section by bending (roll forming) a strip made of a metal plate (for example, a steel plate). The column 10 has a U-shaped cross section, a pair of tapered portions 12 formed continuously on both side walls 11a of the main body 11 and gradually narrowing the gap, and formed continuously with both tapered portions 12. A pair of holding side walls 13 extending to the back side in a state of being opposed to each other in parallel, and a pair of lips 14 formed continuously on the both holding side walls 13 and bent outward at right angles. ing. That is, the column 10 has the opening 10 a between the sandwiching side walls 13. Side wall 1
The interval of 3, that is, the width of the opening 10a is set to an interval in which the end of the lattice 20 can be inserted.

As shown in FIG. 2A, a plurality of locking portions 15 are formed on the mounting wall 11b, which is the front portion of the column 10, at a predetermined pitch along the vertical direction of the column 10. A pair of locking portions 15 are formed at the same height of the column 10 symmetrically with respect to the center of the mounting wall 11b. The locking portion 15 is formed by forming a part of the mounting wall 11 b to be bent toward the inside of the column 10 to form a concave portion 16.

As shown in FIGS. 1, 2 (a) and 3, the main beam 30 has a beam main body 31 having a length corresponding to the width of one frontage of the storage section, and is fixed to both ends of the beam main body 31. Gusset 32 having an L-shaped cross section.

A mounting wall 32a serving as a front portion of the gusset 32
As shown in FIG. 3, a plurality of (five in this example) locking claws 33 are formed at the same pitch as the locking portions 15 along the vertical direction of the gusset 32. As shown in FIG.
The locking claw 33 is formed by pressing inwardly so that two adjacent sides of the square are continuous with the gusset 32 by pressing. The locking portion 15 is engaged with a concave portion 34 formed on the front side of the locking claw 33 so as to be recessed from the mounting wall 32a of the gusset 32. The locking means is constituted by the locking portion 15 and the locking claw 33. FIG. 2B is a partial perspective view of the locking claw 33 viewed from the inner surface of the gusset 32.

As shown in FIG. 2A and FIG.
In the holding side wall 13, holes 17 through which fixing pins 50 for retaining are inserted are formed at a pitch twice as large as the arrangement pitch of the locking portions 15. Also, the side wall 32b of the gusset 32
On the other hand, two holes 35 through which the fixing pins 50 can be inserted are formed at the same interval as the arrangement pitch of the locking claws 33 in a portion opposed to the sandwiching side wall 13 in a state of being attached to the column 10.

The fixing pin 50 is, as shown in FIG.
A pin rod 51 having a predetermined length enough to penetrate one set of left and right gussets 32 attached to the left and right sides of the zero.
It has two sets of regulating pins 52a, 52b arranged in pairs at predetermined intervals in the longitudinal direction of the pin rod 51.
The two sets of four regulating pins 52a and 52b are all formed to project in the same direction orthogonal to the axial direction of the pin rod 51. The two sets of regulating pins 52a and 52b are connected to two holding side walls 1.
Each pair is located on the pin rod 51 with an interval capable of sandwiching the pair 3, and the interval between the pair of regulating pins 52 a and 52 b is set slightly larger than the plate thickness of the sandwiching side wall 13. One end of the pin rod 51 is bent in a direction orthogonal to the direction in which the regulating pins 52a and 52b project to form a U-shaped portion 51a. That is, as shown in FIG. 3, the U-shaped portion 51a is oriented in the horizontal direction when the fixing pin 50 takes the posture in which the regulating pins 52a, 52b project up and down. In addition, the regulation pins 52a, 5
2b constitutes a regulating means and a regulating section.

The holes 17 and the holes 35 through which the fixing pins 50 can be inserted have the same shape and the same size. That is, the holes 17 are provided with the restriction pins 52 above and below a circular hole through which the pin rod 51 can be inserted.
a, 52b have a shape in which a pair of long holes 17a that can be inserted are extended. The hole 35 has a shape in which a pair of long holes 35a through which the restriction pins 52a and 52b can be inserted extend above and below a circular hole through which the pin rod 51 can be inserted.

Next, a procedure for assembling the main beam 3 to the column 10 will be described. After the lattice 20 is connected to the gap between the sandwiching side walls 13 of the column 10, the main beam 30 is laid between the columns 10 arranged in the connecting direction. To attach the main beam 30, first, the locking claw 33 of the gusset 32 is
At a predetermined height. Gusset 32
Is locked to the locking portion 15 via the locking claw 33, one of the two holes 35 of the gusset 32 is
The state is opposed to the hole 17 formed in the nipping side wall 13. In this state, the fixing pin 50 for retaining is inserted into the hole 35 on the side opposite to the hole 17. At this time, the fixing pin 50
Is inserted into the hole 35 in a direction (posture) in which the regulating pins 52a and 52b project up and down as shown in FIG. And
When the two sets of regulating pins 52a and 52b are arranged on both sides sandwiching each sandwiching side wall 13, the fixing pin 50 is rotated by about 90 degrees so that the U-shaped part 51a is suspended downward. I do.

FIG. 4 shows a cross section of the connecting structure in a state where the fixing pin 50 is assembled. As shown in the drawing, a fixing pin 50 is inserted so as to penetrate the gussets 32 and both sandwiching side walls 13 arranged on both right and left sides of the column 10, and each of the sandwiching side walls 13 is provided with two sets of regulating pins 52a and 52b. , So that it is sandwiched from both sides. The position of each of the holding side walls 13 is regulated by the regulating pins 52a and 52b so as to be immovable in the axial direction of the fixing pin 50, and the gap therebetween is immovably connected via the fixing pin 50. The support 10 is reinforced by connecting the two holding side walls 13 via the fixing pins 50.

In the frame shelf 1, a load is placed on a shelf formed by the main beam 30 and the sub beam 40. For example, when a load on a shelf is taken out using a forklift, the load may accidentally hit the lower surface of the upper main beam 30 when the load is lifted for scooping. Even when the lifting force is applied to the main beam 30 in this manner, the fixing pin 50 is moved by the gusset 32 and the support 10
Is inserted into the support 10 of the main beam 30.
There is no need to worry about the locks coming off.

This embodiment has the following effects. (1) A fixing pin 50 for preventing the main beam 30 from being hooked on the column 10 is inserted in a state in which the pinching side wall 13 of the column 10 is pinched by the regulating pins 52a and 52b. Since the connecting members 13 are connected via the fixing pins 50, the supporting columns 10 can be reinforced by using the fixing pins 50. Therefore, without increasing the number of holes provided in the column 10 or welding the column 10,
0 can be reinforced. Also, since the fixing of the main beam 30 to the column 10 is prevented by the fixing pin 50, even if a load hits from below the main beam 30 at the time of unloading, for example, the main beam 30 remains in the column 1.
There is no worry about going out of zero.

(2) The regulating pins 52a and 52b are formed integrally with the fixing pin 50, and only the operation of rotating the fixing pin 50 by about 90 degrees after inserting the fixing pin 50 is required. However, the time required for the conventional fixing pin insertion work can be reduced.

(3) By the rotation of the fixing pin 50, it is possible to easily switch whether or not the restriction pins 52a and 52b are locked to the support column 10. Therefore, assembling of the fixing pin 50
Removal can be performed easily. For example, it does not take much effort to change the height at which the beams 30 and 40 are attached to the column 10 in order to change the height of the shelf.

(4) Since the holding side wall 13 is sandwiched by the two sets of regulating pins 52a and 52b formed on the fixing pin 50, it is strong against both the load in the opening direction of the opening 10a and the load in the closing direction. The support 10 can be reinforced. Further, since the hole 17 is formed so that the long hole 17a for passing the regulating pins 52a and 52b extends in the vertical direction (longitudinal direction) of the column 10, the hole 17 is formed as the long hole 17a.
However, the bending strength of the column 10 is not easily reduced.

(5) A U-shaped portion 51a is formed by bending the end portion of the pin rod 51. When the fixing pin 50 is inserted, the U-shaped portion 51a is oriented in the horizontal direction, and the holding side wall 13 is provided with the regulating pin 52a. , 52b, the U-shaped portion 51a hangs down. For this reason, the U-shaped portion 51
The fixed pin 50 is regulated by the weight of a.
b can hold the sandwiching side wall 13 in a sandwiched state,
Can be maintained in a reinforced state. Further, the fixing pins 50 can be prevented from coming off.

(6) A plurality of (two in this example) holes 35 through which the fixing pins 50 for retaining are inserted into the gusset 32 are formed at the same interval as the arrangement pitch of the locking claws 33. The arrangement pitch of the holes 17 formed on the side 10 can be set to be multiple times the pitch of the locking claws 33. Therefore, the number of holes 17 formed in the column 10 can be reduced, and the strength of the column 10 is increased accordingly.

The embodiment is not limited to the above, but may be embodied as follows. The configuration is not limited to the configuration in which the pinching side wall 13 is pinched by the pin, and the pinning may be only outside the pinching side wall 13 or only inside. For example, when one set of regulating pins is arranged only on the outside of both sandwiching side walls 13, the column 10 can be reinforced against a load in the opening direction of the opening 10a. Also,
When one set of regulating pins is arranged only inside the sandwiching side wall 13, the column 10 can be reinforced against a load in the closing direction of the opening 10a.

The present invention is not limited to the configuration in which the restriction pin is formed integrally with the fixing pin. That is, the restricting means may be configured as a separate component from the fixing pin. For example, after the fixing pin is inserted, a regulation pin of another component may be fitted into a mounting hole formed in the pin rod.

The fixing pins are not limited to those having an assembling structure which is inserted and inserted from the axial direction. For example, it is also possible to adopt a configuration in which an insertion groove is formed on the back side of the gusset and the support, and a fixing pin is inserted into each insertion groove in a direction orthogonal to the axial direction and assembled. In this case, for example, a disc to which a pin rod is fixed can be used as the restricting portion. In this case as well, the fixing pin inserted into the insertion groove is arranged so as to penetrate the column.

A configuration in which fixing pins are individually attached to the gussets to be assembled on the left and right sides of the column can be adopted. That is, when a fixing pin is prepared for each end of the main beam, and the main beam is erected on both right and left sides of the column, the column is reinforced by the two fixing pins at the connection portion.

The fixing pin may have a U-shape, and two rod portions extending in parallel with each other may be inserted into the support to prevent the rod from coming off at two places. ○ The insertion position (penetration position) of the fixing pin to the support
The present invention is not limited to the side wall facing the opening. Nipping side wall 1
For example, it is possible to adopt a configuration in which a fixing pin is inserted at the side wall 11a other than 3, for example. With this configuration, the columns can be reinforced.

The number of holes 35 formed in the gusset 32 is not limited to two, but may be one or three or more. ○ The “substantially U-shaped cross section” in each claim is defined as follows. The substantially U-shaped cross section means a tubular shape with a cut opening. The shape of the cylinder in the circumferential direction such as a cylindrical shape and a polygonal cylindrical shape is not particularly limited. For example, even if the opening is small and close to a square tube, the opening is merely a substantially U-shape.

The technical ideas other than the claims that can be grasped from the embodiment will be described below. (1) The configuration according to any one of claims 2 to 5, wherein the restricting portion is engaged with two portions of the support post in a rotating posture when the weight portion (51a) hangs down by its own weight on the fixing pin. Have been. According to this configuration, disconnection of the connection between the fixing pin and the support via the restricting portion can be prevented. Therefore, the support can be held in a reinforced state.

[0042]

As described in detail above, according to the first to fifth aspects of the present invention, both sides of the opening of the column are fixed via the fixing pins attached to prevent the beam material from being hooked to the column. Since the connecting structure is adopted, the column can be reinforced without increasing the number of holes or welding, and furthermore, the beam can be prevented from coming off.

According to the second aspect of the present invention, since the restricting portion is formed on the fixing pin, the structure can be simplified, and
In order to connect the two positions of the support column via the fixing pins, it takes only as much work as the insertion work when inserting the fixing pins.

According to the third aspect of the present invention, since the two side walls of the column are held by the restricting portion, both the load in the direction to open the column and the load in the direction to close the column are supported. Can also be reinforced.

According to the fourth aspect of the present invention, the engagement and disengagement of the restricting portion with respect to the column is switched by the rotation of the fixing pin, so that the fixing pin can be easily assembled and removed. According to the fifth aspect of the present invention, since the support is connected via the fixing pin near the opening end of the support, the support can be efficiently reinforced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a frame shelf according to one embodiment.

2A is a perspective view showing a connection structure between a support and a main beam, and FIG. 2B is a perspective view showing a locking claw on a main beam side.

FIG. 3 is an exploded perspective view showing a connection structure between a column and a main beam.

FIG. 4 is a cross-sectional plan view showing a connection structure between a support and a main beam.

FIG. 5 is a side sectional view showing a connection structure between a support and a main beam according to a conventional technique.

FIG. 6 is an exploded perspective view showing a connection structure between the column and the main beam.

FIG. 7 is a partial perspective view showing a conventional support.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Frame shelf, 10 ... Prop, 13 ... Nipping side wall, 15 ... Locking part which comprises a latching means, 17 ... Hole, 30 ... Main beam as a beam material, 31 ... Beam main body, 32 ... Gusset, 33 ... Locking claw, 35...
... Fixing pins, 52a, 52b ... Regulatory pins that constitute a regulator and serve as a regulator.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Manabu Hasegawa 2-1-1 Toyotamachi, Kariya-shi, Aichi Prefecture Inside Toyota Industries Corporation (72) Inventor Takashi Iwaki 2-1-1 Toyotamachi, Kariya-shi, Aichi Prefecture Shares Company Toyoda Automatic Loom Works (72) Inventor Akihiko Fujiwara 1-3-10 Shinhama, Tadaoka-cho, Senboku-gun, Osaka F-term (reference) 3B054 AA01 BA06 BA10 BA15 BA17 FA01 3F022 FF04 MM02 MM03 MM13 MM51

Claims (5)

[Claims] 1. A frame shelf provided with a plurality of columns having a substantially U-shaped cross section having an opening extending vertically and having a beam member laid between the columns, wherein an end of the beam member is hooked on the column. A locking means for supporting, and a fixing pin for stopping the locking of the beam material, which is hooked and supported on the support by the locking means, wherein the fixing pin is Regulating means for assembling so as to penetrate in the width direction of the opening and for restricting the position of the support pin engaging with the fixing pin with respect to the fixing pin so as not to be relatively displaced in the width direction of the opening; Connection structure between columns and beam members on the provided frame shelf. 2. The fixing means according to claim 1, wherein said restricting means is a restricting portion formed on said fixing pin so as to restrict movement of two positions of said column engaging with said fixing pin in the axial direction of said fixing pin. The connection structure of a support | pillar and a beam material in the frame shelf of 3. 3. A set of the restricting portions is provided at a position corresponding to each of the side walls of the fixing pin so as to be able to sandwich two side walls, which are two places of the column, respectively.
The connection structure of a support | pillar and a beam material in the frame shelf of 3. 4. The fixing pin according to claim 2, wherein the fixing pin is provided so as to be able to switch between engagement and non-engagement of the restricting portion with respect to two positions engaging with the support column by rotation about an axis thereof. Connection structure between columns and beam members on the frame shelf. 5. The fixing pin is inserted into two end side walls facing each other across the opening of the column.
A connection structure between a column and a beam member in the framework shelf according to any one of the above.