JPH10250810A - Connecting structure for article placing member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting structure which can maintain an article placing member in a position suited to place articles by simplifying the shape of a bracket to the maximum and by simple connecting and fixing operations. SOLUTION: The connecting structure for an article placing member is provided with a pillar 6 for holding an article placing member 9 on which articles to be placed, and a bracket 15 connected to the article placing member 9. A connecting pin 18 is serially inserted in a mounting hole 21 of the pillar 6 and mounting holes 19, 20 of the bracket 15, and the article placing member 9 is connected and fixed to the pillar 6 through the bracket 15. The bracket 15 is formed into an L-shape in cross section provided with a front plate 16 to be pressed against the front face of the pillar 6, and a lateral plate 17 to be pressed against the side face of the article presence side, and the mounting holes 19, 20 on the bracket side, into which the connecting pin 18 are inserted, are provided on the upper end side of the bracket 15 so that the connecting pin 18 is penetrated through the bracket 15. The article placing member 9 is connected to the lower end side of the bracket 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an article placing member for placing an article, a support for holding the article placing member, and a bracket connected to the article placing member. Connecting an article mounting member for connecting and fixing the article mounting member to the column via the bracket by inserting a connecting pin through the mounting hole provided in the column and the mounting hole provided in the bracket. Regarding the structure.

[0002]

2. Description of the Related Art Such a connection structure is used, for example, when connecting a brace beam as an article mounting member between columns in an article storage shelf of an automatic warehouse.
Conventionally, those shown in FIGS. 10 and 11 are known.
In the illustrated conventional structure, a bracket 15A is connected to an article mounting arm beam 9 via an arm 14, and the bracket 15A is bent and formed by a metal plate-shaped body. A front plate 16A to be applied to the front surface of the strut 6, a horizontal plate 17A to be applied to the lateral side, an inner plate 17B to be applied to the inner surface of the concave groove 12 along the longitudinal direction of the column 6, and the like. I have.

A crosspiece 14 is connected by welding to a substantially central portion of the horizontal plate 17A in the vertical direction.
A notch 19A that engages with the connecting pin 18A is formed at the center of the front plate 7A in the vertical direction, and a pin hole 20A through which the connecting pin 18A is inserted is formed at the center of the front plate 16A in the vertical direction. The notch 19A and the pin hole 20A function as a mounting hole on the bracket 15A side, and the notch 19A
And the head 22A side of the connecting pin 18A is penetratingly engaged with the connecting pin 18A, and penetrates the connecting pin 18A through the mounting pin hole 21 formed in the column 6 and the pin hole 20A of the front plate 16A. The nut 24A was configured to be screwed and fixed.

Accordingly, when an article is placed on the arm beam 9 while the arm beam 9 is connected and fixed to the column 6, as shown in FIG.
A shear force acts on 8A, and a moment M acts on the bracket 15A centering on the vicinity of the connection point of the arm 14 to the bracket 15A. Then, the moment M is applied to the contact portion B at the lower end of the horizontal plate 17A to the side surface of the support 6.
And the upper end of the inner plate 17B and the contact portion C of the upper surface of the inner plate 17B with the inner surface of the recessed groove 12, that is, the vertical length of the bracket 15A. , The bracket 15A is attached to the column 6, and the armature beam 9 is held in a position suitable for placing articles.

[0005]

Therefore, in the above-mentioned conventional structure, the inner plate 17B connected to the front plate 16A becomes indispensable in order to hold the arm beam 9 in a posture suitable for placing articles, and the bracket 15A is required. Becomes complicated, and the recessed groove 12 for contacting the inner plate 17A is indispensable also on the support column 6 side. Further, when the bracket 15A is connected and fixed along the support column 6, the horizontal plate 17A of the bracket 15A is fixed. And the inner plate 17B must be along the inner side surface of the recessed groove 12, and the connecting and fixing work may be a little complicated.

The present invention has been made to solve the above-mentioned conventional problems, and has as its object to simplify the shape of a bracket as much as possible, and does not necessarily require a recessed groove for a support, and is simple and simple. An object of the present invention is to provide a connection structure that can maintain an article placement member in a posture suitable for article placement by a connection and fixing operation.

[0007]

In order to achieve this object, according to the first aspect of the present invention, a front plate for attaching a bracket for connection to an article mounting member to a front surface of a support and a front side of an article existing side. A cross-sectional shape L having a horizontal plate applied to the side surface
Because it is formed in the shape of a letter and eliminates the inner plate as in the past, the shape of the bracket can be simplified and cost can be reduced, and when connecting and fixing the bracket along the support However, since there is no inner plate as in the conventional case, the connection and fixing work is also easy, and the support does not necessarily need the recessed portion as in the conventional case, and the shape can be simplified by eliminating the recessed portion. . A mounting hole on the bracket side for inserting the connecting pin is provided at the upper end side of the bracket so as to penetrate the bracket, and the article mounting member is connected to the lower end side of the bracket. Even if the inner plate was eliminated, the vertical length of the bracket was effectively used, and the shearing force acting on the connecting pin was minimized, so that the article mounting member was suitable for article mounting. It is possible to maintain the posture.

In this regard, the bracket 15 of the present invention shown in FIG. 6 and the bracket 1 of the conventional structure shown in FIG.
This will be described in detail with reference to the operation explanatory diagram of FIG. Both brackets 15 and 15A have the same vertical length of 2L, and
Assuming that the load of the article to be placed is also the same W, a shear force acts on both connecting pins 18 and 18A due to the load W of the article, and both brackets 15 and 15A have an article placing member with respect to the bracket. A moment M of the same magnitude acts around the vicinity of the connection point 9. In the conventional structure, as described above, the moment M is transmitted to the horizontal plate 17A.
The contact portion B at the lower end portion and the contact portion C at the upper end portion of the inner plate 17B are shared and received. The distance between the contact portions B and C is 2L, which is substantially the same as the vertical length of the bracket 15A. Becomes

On the other hand, in the case of the present invention, the moment M is received at the contact portion B at the lower end of the horizontal plate 17 on the side surface of the column 6 and the connecting pin 18, and the contact portion B
Since the distance between the connecting pin 18 and the vertical length of the bracket 15 is substantially equal to 2 L, even if the conventional inner plate is eliminated, the vertical length of the bracket 15 can be effectively reduced similarly to the conventional structure. Utilizing this, the mounting posture of the bracket 15 with respect to the support 6 can be reliably maintained. In addition, the article placing member 9 which is the center of the moment M
Is located on the lower end side of the bracket 15,
The distance from the center of the moment M to the connecting pin 18 is approximately 2 L, which is substantially the same as the vertical length of the bracket 15, so that the shear force acting on the connecting pin 18 for receiving the moment M can be minimized.

Therefore, in the bracket according to the present invention, even if the inner plate, which has been indispensable in the past, is eliminated, the strength of the connecting pin is not particularly increased by effectively utilizing the vertical length of the bracket. The mounting member can be maintained in a posture suitable for mounting articles, as a result, the shape of the bracket can be simplified, a concave portion is not necessarily required on the column side, and cost can be reduced as a whole, and the bracket can be reduced. Thus, the work of connecting and fixing the member for mounting articles via the interface can be easily performed.

According to the second aspect of the present invention, the engagement of the bracket with the rear surface of the column at the end of the bracket opposite to the front plate to prevent the bracket from moving toward the column front. Since the engagement piece prevents the bracket from moving to the front side of the column, and the front plate prevents the bracket from moving to the rear side of the column. When the connecting pin is inserted, the movement of the bracket with respect to the support is restricted,
The work of inserting the connecting pin becomes easy.

According to the third aspect of the present invention, a notch that opens on the opposite side of the front plate from the front plate is provided in the horizontal plate of the bracket that connects the article mounting member, and a through hole is formed in the front plate of the bracket. A notch and a through hole to form a mounting hole on the bracket side, and a connecting pin is formed in an L-shape including a bent portion and a straight portion, and the bent portion of the connecting pin is formed. Are engaged so as to penetrate into notches provided in the horizontal plate, and the straight portion penetrates through the mounting hole provided in the front-rear direction of the support and the through hole of the front plate. The load of the above article acts on the connecting pin via the horizontal plate and the front plate, and also acts near both ends of the connecting pin. The load can be held, and even if the object is heavy, Can.

According to the fourth aspect of the present invention, the notch provided in the horizontal plate of the bracket is formed by a long hole extending in the vertical direction and an opening which opens continuously below the long hole.
Since the through hole provided in the front plate is configured to be a long hole corresponding to the long hole portion of the notch, the bent portion of the connecting pin is penetrated and engaged with the notch of the horizontal plate. By passing the straight portion of the connecting pin through the mounting hole of the column and the through hole of the front plate and moving the bracket slightly downward, the bent portion of the connecting pin enters the long hole of the notch. The rattling is prevented, and at the same time, the connecting pins are prevented from falling off.

According to the fifth aspect of the present invention, at the end of the bent portion of the connecting pin, a head for preventing the notch of the horizontal plate from coming off is provided, and the end of the straight portion of the connecting pin is recessed. With a groove,
Since the snap ring is fitted into the recessed groove, the connection pin head and the snap ring more securely prevent the connection pin from falling off, and the linear pin end of the connection pin is snapped. Since the ring is inserted, the snap ring mounting operation is simplified as compared with, for example, screwing a nut.

According to the sixth aspect of the present invention, the end of the bracket on the side opposite to the front plate of the bracket projects from the rear surface of the column and is inclined toward the column, and the inclined horizontal plate end is provided. In addition to providing the notch in the portion, a head for preventing the notch from falling out is provided at the end of the bent portion of the connecting pin, and a nut is screwed into the end of the linear portion of the connecting pin. Then, the head of the connecting pin moves along the notch with the tightening of the nut. At this time, since the notch is provided at the end of the horizontal plate inclined toward the support on the rear surface of the support, the back surface of the connecting pin head and the end of the horizontal plate are in sliding contact with each other, and the sliding contact causes the side of the bracket to slide. The plate is moved to the lateral side of the column and firmly abuts against the lateral side of the column, so that the connection and fixing of the bracket to the column becomes more reliable.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment in which a connecting structure of an article placing member according to the present invention is applied to an article storage shelf of an automatic warehouse. Such an automatic warehouse is shown in FIG.
As shown in FIG. 1, a plurality of article storage shelves 1 are arranged with their fronts facing each other, and a stacker movable along the frontage of the article storage shelves 1 between the opposed article storage shelves 1. A crane 2 is provided. The stacker crane 2 is provided with an elevating platform 3 that can be moved up and down, and the elevating platform 3 is provided with a fork 4 that can move out and up.
The self-propelled movement of the stacker crane 2, the vertical movement of the elevator 3, and the movement of the fork 4 allow the article storage shelf 1 to move.
Various articles A can be conveyed between the article storage sections and the load transfer section 5 while being placed on the pallet P.

As shown in FIG. 2, each of the article storage shelves 1 has a plurality of long columns 6 standing vertically and rivets, bolts, nuts and the like extending between the plurality of columns 6. It is framed by a plurality of horizontal beams 7 (see FIG. 1) and diagonal beams 8 which are connected and fixed by a connecting tool, and the whole is configured as an assembling truss structure by pin bonding. In each of the article storage sections of the article storage shelf 1, a pair of arm beams 9 as an article mounting member are provided on the left and right as viewed from the frontage, and a pallet P is mounted on the pair of left and right arm beams 9. Thereby, the articles A on the pallet P can be stored and stored in multiple rows in the vertical direction and in a plurality of rows in the horizontal direction.

As is apparent from FIGS. 3 and 4, each of the columns 6 is formed of a hollow mold steel having a substantially rectangular cross section and a pair of protruding sides 10 parallel to each other on one surface thereof. An opening groove 11 extending in the longitudinal direction is formed between the pair of projecting sides 10, and a concave groove 12 extending in the longitudinal direction is formed in the center of the opposite surface. A pair of pillars 6 located in front and rear as viewed from the frontage of the article storage shelf 1 are arranged with their opening grooves 11 facing each other, and use a base plate 13 welded to the lower end of each pillar 6. Erected by anchor bolts.
Each arm 14 is fixed by welding, and the arm 14
Are attached to the columns 6 via the brackets 15 so that the respective arm beams 9 are arranged and fixed at equal intervals along the longitudinal direction of the columns 6.

The arm beam 9 and the arm 14 are each formed of a channel-shaped mold steel and fixed by welding.
The bracket 15 is fixed to the both arms 14 by welding. The bracket 15 is attached to the arm 14 in front of the frontage.
There is a difference in right and left between the one fixed to the front arm and the one fixed to the rear arm 14, and the one fixed to the arm 14 in front of the front has the same structure, although the right and left of the front are different. For this reason, a description will be given of the one fixed to the arm bar 14 in front of the frontage. The front plate is formed by bending a metal plate-shaped body so as to have an L-shaped cross section, and abuts against the front surface of the upright supporting column 6. 16 and a horizontal plate 17 that abuts on the lateral side of the side where the article A is present, and the front plate 16 is configured to have a width slightly protruding toward the recessed groove 12 side of the support column 6.
A lower arm 14 is connected to the lower end of 7 by welding.

The horizontal plate 17 of the bracket 15 is provided with an L-shaped notch 19 as a mounting hole for engaging with a connecting pin 18 for mounting the bracket.
A pin hole 20 is formed in the front plate 16 of FIG. 5 as a mounting hole through which the connecting pin 18 is inserted. The notch 19 and the pin hole 20 are provided on the upper end side of the horizontal plate 17 and the front plate 16, and the pin hole 20 is configured as a long hole that is longer in the vertical direction. On the other hand, as shown in FIG. 5A, the notch 19 has a vertically long slot 19a of the same size as the pin hole 20 and a lower end of the slot 19a. It is configured in an L-shape including the plate 16 and an opening 19b that opens on the opposite side, and the pin hole 20 and the slot 19a of the notch 19 are configured to be located at substantially the same height.

A plurality of pin holes 21 through which the connecting pins 18 are inserted are also formed in the support column 6 at equal intervals along the longitudinal direction of the support column 6. The pin hole 21 on the column 6 side is a circular hole,
As is clear from FIG. 4, each pillar 6 is drilled so as to penetrate the pillar 6 in the front-rear direction, and a row of a plurality of pin holes 21 is provided on both sides of the recessed groove 12 of the pillar 6. Have been. However, as for the support column 6 erected at the end in the direction along the frontage of the article storage shelf 1, the row of the pin holes 21 may be formed only on one of the left and right sides of the concave groove 12. The connection pin 18 has a circular head 22, and the vicinity of the head 22 is bent at substantially a right angle to form an L-shape including a bent part 18 a and a straight part 18 b on the head 22 side. , Its linear portion 18
An annular concave groove 23 is provided at the tip of b, and the snap ring 24 can be fitted into the concave groove 23.

In order to fix each arm beam 9 between the front and rear columns 6 using the bracket 15 and the connecting pin 18, the brackets 15 fixed to the both arms 14 are respectively arranged along the columns 6 and the front plate 16 is fixed. The pin hole 20 is aligned with one of the pin holes 21 on the column 6 side. 5 with the head 22 of the connection pin 18 facing the arm 14 side.
As shown in (a) of FIG.
Of the bent portion 1 along the notch 19b of the horizontal plate 17,
8a is inserted to penetrate the horizontal plate 17, and the bracket 15 is moved slightly downward. Then, as shown in FIG. 5B, the bent portion 18a of the connecting pin 18 inserted into the pin hole 21 of the support column 6 has a notch 19 with the upper end of the long hole portion 19a and the straight portion 18b with a pin hole. The upper ends of the brackets 20 are in contact with each other, and the brackets 15 are held on the columns 6. Thereafter, the snap ring 24 is fitted into the annular recess groove 23 at the end of the linear portion 18 b of the connecting pin 18, so that the arm beam 9
The pallet P is placed between the pair of left and right arm beam 9.

[Alternative Embodiment] FIGS. 8 and 9 show an alternative embodiment. In order to avoid duplication, the same parts as those of the previous embodiment are denoted by the same reference numerals and the description thereof will be omitted. The description will be omitted, and only different configurations will be mainly described. In this embodiment, as in the previous embodiment, the arm member 14 is fixed to the lower end of the horizontal plate 17 of the bracket 15 by welding.
Is configured so that it can be connected and fixed to both arms 14 by bolts 25. First, only the bracket 15 having the arms 14 is connected and fixed to the support 6, and then the arm beams 9 are connected and fixed between both arms 14. It is configured to be able to.

As in the previous embodiment, the connecting pin 18 for attaching the bracket has a circular head 22 and is formed in an L-shape including a bent portion 18a and a straight portion 18b. However, a nut 24A is used instead of the snap ring 24, and the nut 24A can be screwed to the tip of the linear portion 18b of the connecting pin 18. Bracket 1 engaging with connecting pin 18
The mounting hole on the fifth side is also provided at the upper end side of the horizontal plate 17 and the front plate 16, but a straight line opening on the opposite side to the front plate 16 as in the conventional structure shown in FIGS. It is composed of a notch 19A having a circular shape and a circular pin hole 20A.

At the end of the horizontal plate 17 opposite to the front plate 16, engagement pieces 17a are provided at the upper end and lower end, and the upper and lower engagement pieces 17a engage with the rear surface of the support post 6. In the case where only the bracket 15 is connected to the column 6 before connecting and fixing the arm beam 9, the notch 1
When the connecting pin 18 is inserted through the 9A, the pin hole 21 of the column 6, and the pin hole 20A of the front plate 16, the bracket 15 is displaced to the front side with respect to the column 6 with the insertion of the connecting pin 18. It is configured to prevent Further, as shown in FIG. 9, the horizontal plate end portion 17b located between the two engagement pieces 17a protrudes rearward from the rear surface of the column 6 and is slightly inclined toward the column 6 side. The notch 19A is provided in the inclined horizontal plate end 17b, and the horizontal plate 17 of the bracket 15 is brought into sliding contact between the back surface of the head 22 and the horizontal plate end 17b due to the fastening of the nut 24A to the connecting pin 18. Is moved to the lateral side of the support 6, and the bracket 15 is configured to strongly hug the support 6.

The two embodiments have been described above. In the bracket 15 shown in FIGS.
As shown in FIG. 9 and FIG. 9, the arm beam 9 is configured to be connectable and fixable to the both arms 14 with bolts 25, and the horizontal plate 17 is provided with an engaging piece 17a, and the horizontal plate end 17b is supported by a support. (6) Inclined to the rear surface side, provided with a notch 19 consisting of a long hole 19a and an opening 19b at the inclined horizontal plate end 17b, and enabling the nut 24A to be screwed into the connection pin 18 for implementation. Can also. Conversely, in the bracket 15 shown in FIGS. 8 and 9, as shown in FIGS. 3 to 5, the notch 19 including the long hole 19 a and the opening 19 b is provided in the end portion 17 b of the horizontal plate. The plate 16 may be provided with a pin hole 20 formed of a long hole in the vertical direction, and furthermore, as shown in FIGS.
7a and the inclined horizontal plate end 17b may be eliminated, and the horizontal plate 17 may be formed in a flat shape.

In the above embodiments, the snap ring 24 is fitted to the end of the linear portion 18b of the connecting pin 18 or the nut 24A is screwed. However, instead of the snap ring 24 and the nut 24A, The present invention can also be implemented using retaining pins of various shapes, and the arm storage type article storage shelf 1 for mounting the article A on the arm beam 9 has been shown as the article mounting member. Also, the present invention can be applied to a beam-type article storage shelf using a horizontal beam as an article mounting member, and can also be applied to various article storage shelves other than an automatic warehouse. Furthermore, in the embodiments described above, the configuration in which the article mounting member such as the arm beam 9 is connected to the lower end side of the horizontal plate 17 of the bracket 15 via the arm 14 has been described. It can also be implemented by connecting to the lower end of the front plate 16 of the bracket 15. However, in this case, the pin hole 21 on the support column 6 side is provided in the lateral direction, and the linear portion 18b of the connecting pin 18 is provided.
The bracket 15 is attached to the column 6 by penetrating through the mounting hole on the bracket 15 side and the pin hole 21 on the column 6 side with the.

[Brief description of the drawings]

FIG. 1 is a perspective view of an automatic warehouse.

FIG. 2 is a perspective view of an article storage shelf.

FIG. 3 is a perspective view showing a connection structure of an article placing member.

FIG. 4 is a cross-sectional view showing a connection structure of the article placing member.

FIG. 5 is a longitudinal sectional view showing a procedure for connecting the article placement members.

FIG. 6 is an explanatory view of the operation of the connection structure according to the present invention.

FIG. 7 is a diagram illustrating the operation of a conventional connection structure.

FIG. 8 is a perspective view showing a connection structure of another embodiment.

FIG. 9 is a cross-sectional view showing a connection structure of another embodiment.

FIG. 10 is a perspective view showing a conventional connection structure.

FIG. 11 is a cross-sectional view showing a conventional connection structure.

[Explanation of symbols]

 6 Prop 9 Member for placing articles 15 Bracket 16 Front plate 17 Horizontal plate 17a Engagement piece 17b Horizontal plate end 18 Connecting pin 18a Bending portion of connecting pin 18b Straight portion of connecting pin 19, 19A Notch 19a Notch Slot 19b Opening of notch 20 Slot 20A as through-hole 20A Through-hole 21 Mounting hole for pillar 22 Head of connecting pin 23 Recessed groove 24 Snap ring 24A Nut A Article

Claims (6)

[Claims] An article mounting member for mounting an article, a support for holding the article mounting member, and a bracket connected to the article mounting member are provided on the support. A connection pin for inserting the connection pin through the mounting hole provided in the bracket and the mounting hole provided in the bracket, thereby connecting and fixing the member for mounting the article to the support via the bracket, wherein: The bracket is formed in a cross-sectional L-shape having a front plate for abutting against the front surface of the column and a horizontal plate for abutting the side surface on the side of the article, and a mounting hole on the bracket side for inserting the connecting pin is provided in the bracket. A connection structure for an article mounting member provided on an upper end side such that the connecting pin penetrates a bracket, and the article mounting member is connected to a lower end side of the bracket. 2. An engagement piece is provided at an end of the bracket opposite to the front plate of the horizontal plate to engage with a rear surface of the column to prevent the bracket from moving to the column front side. 2. The connection structure of the article mounting member according to 1. 3. A notch that opens to the opposite side of the front plate from a side plate of the bracket that connects the article placement member, and a through hole is provided in the front plate of the bracket to allow the notch to be connected to the notch. A mounting hole on the bracket side is formed by the through hole, and the connecting pin is formed in an L-shape including a bent portion and a straight portion, and the bent portion of the connecting pin is provided on the horizontal plate. 3. The article placement device according to claim 1, wherein the notch is formed so as to penetrate into the notch, and the straight portion penetrates a mounting hole provided in a front-rear direction of the support and a through hole of the front plate. 4. Member connection structure. 4. A notch provided in a horizontal plate of the bracket is formed in an L-shape including a vertically long slot and an opening continuous below the slot. 4. The connecting structure of an article placing member according to claim 3, wherein the through holes provided in the first and second holes are formed as long holes corresponding to the long holes. 5. A connecting head is provided with a head for preventing a cutout of a horizontal plate at an end of a bent portion of the connecting pin, and a concave groove is provided at an end of a linear portion of the connecting pin, and the concave is formed. 5. The connecting structure of an article placing member according to claim 3, wherein a snap ring is fitted in the groove. 6. An end of the bracket, opposite to the front plate of the horizontal plate, protrudes from a rear surface of the column and is inclined toward the column, and the notch is provided at the inclined horizontal plate end. 5. The head according to claim 3, wherein a head for retaining the notch is provided at an end of the bent portion of the connection pin, and a nut is screwed to an end of the straight portion of the connection pin. Connection structure of article placement members.