JP3196544B2 - Locking device for connecting rod - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting rod stopper connecting device, and more particularly, to a connecting rod removing device used for connecting a connecting rod between both side columns constituting a support frame in a display fixture or the like. The present invention relates to a stop connecting device.

[0002]

2. Description of the Related Art Conventionally, when a downward hook protruding from an end of a connecting rod is fitted and locked to a vertically long locking hole formed on a side surface of a column or the like, the hook is prevented from coming off. Various connection structures that can be performed are provided.

[0003] For example, Japanese Utility Model Publication No. 63-38834 discloses that a plurality of locking holes are formed vertically on a side surface of a support column at predetermined intervals, and at least one connecting rod is connected to the support column in an abutting manner. A fitting body is formed at the end of the connecting rod, a downward hook is formed vertically on the fitting body, and an operation hole is formed in a side wall of the fitting body. A body is attached, and a hooking body and a locking body facing the operation hole are formed in the elastic body, and the locking body is protruded above the hook in the same direction as the hook, and is provided below the neck of the hook. A connection structure is disclosed in which the distance from the edge to the upper edge of the locking body is equal to or slightly smaller than the vertical width of the locking hole.

However, in the above-mentioned publication, since the elastic body is integrally fixed inside the fitting body, the structure becomes complicated, and the elastic body is made of a leaf spring, and It is fixed to the inner wall by welding, screwing, fitting, etc., but usually it is made of steel as the fitting body, so it is not easy to firmly fix the elastic body made of different materials, which increases the manufacturing cost. Connect. When the hook of the connecting rod is removed from the locking hole of the column, the tip of the driver inserted from the operation hole is hooked on the hook of the elastic body to engage the locking body against the elastic force of the elastic body. It is necessary to remove the hook from the locking hole while maintaining the state while being pulled out from the stop hole, and there is a problem in workability when working alone.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned situation, the present invention is intended to solve the problem that a downward hook projecting from an end of a connecting rod is provided in a vertically long locking hole formed in a side surface of a column or the like. When the hooks are fitted and locked, the hooks are prevented from being pulled off by an elastic regulating body made separately, and the elastic regulating body is detachably connected to the connecting rod. On the point.

[0006]

According to the present invention, in order to solve the above-mentioned problems, a vertically long locking hole is formed in a side surface of a support column or the like, and the locking plate is provided on a connecting plate suspended from an end of a connecting rod. A downward hook that fits and locks into the hole is protruded, and a notch that is opened laterally is formed at the edge of the connecting plate located at the upper end of the hook, and the downward hook is formed at the lower edge of the locking hole. In the fitted and locked state, the insertion portion of the elastic regulating body is inserted between the upper end of the hook and the upper edge of the locking hole from the notch, and the insertion portion is fixed by the detent means provided on the elastic regulating body. The connecting rod is prevented from coming back, the hook is prevented from being removed, and the connecting rod is connected to a support or the like to constitute a connecting rod retaining / connecting device.

More specifically, at least a pair of vertically long locking holes are juxtaposed on the side surface of a column or the like, and a connecting member having a U-shaped cross section having a pair of connecting plates is fixed to an end of the connecting rod.
Along with projecting downward hooks fitted and locked in the locking holes respectively on both connecting plates, a notch portion opened to the side is formed at an edge portion of both connecting plates located at the upper ends of the pair of hooks,
The distal end portions of the two spring pieces of the substantially U-shaped elastic restricting body which is fitted to the connecting member are bent inward to form an insertion portion, and a dowel as a detent means is provided on the outer surface of the insertion portion. In the state where both downward hooks are fitted and locked to the lower edges of the locking holes, the insertion portions of the two spring pieces of the elastic regulating body fitted outside from the inside of the connecting member are respectively positioned in the notches. After that, the dowel is inserted between the upper end of the hook and the upper edge of the locking hole until the dowel passes through the locking hole, the hook is stopped, and the connecting rod is connected to a support post or the like. A stopper connecting device was constructed.

In addition, a vertically long locking hole is formed on the side surface of the support column or the like, and a downward hook that fits and locks into the locking hole is projected from a connecting plate vertically provided at an end of the connecting rod. A notch opened laterally is formed at the edge of the connecting plate located at the upper end of the hook, and the insertion portion is formed to be bent outward at the tip of one leg of the elastic regulating body having a substantially V-shape in plan view. At the same time, an engagement groove is formed at the tip of the other leg piece as a detent means in a direction opposite to the insertion section, and the downward hook is fitted and locked to the lower edge of the locking hole. After the insertion portion is positioned in the notch, the hook is inserted between the upper end of the hook and the upper edge of the locking hole, and both legs are pressed down to engage the engagement groove with the vertical edge in the notch, A connecting rod retaining / connecting device was configured in which the hook was retained and the connecting rod was coupled to a column or the like.

[0009]

According to the present invention, there is provided a connecting rod retaining / connecting device of the present invention having a vertically long locking hole formed on a side surface of a support column or the like, and a connecting plate protruding from an end of the connecting rod. After the downward hook is fitted and locked, the insertion portion of the elastic regulating body made separately is opened sideways to the edge of the connecting plate located at the upper end of the hook, and the hook is cut from the notch. The upper movement of the hook is restricted by inserting the stopper between the upper end of the lock hole and the upper edge of the locking hole, and the detent is provided by the detent means provided on the elastic restricting body. The connecting rod is connected to the support or the like.

[0010] At least one pair of the locking holes is arranged side by side, a connecting member having a pair of connecting plates is fixed to the end of the connecting rod, and downward hooks are protruded from both connecting plates. A notch opened laterally is formed at the edge of both connecting plates located at the upper end, and has a substantially U-shape in plan view, which is fitted externally to the connecting member as an elastic restricting body. In the case where the insertion portion is formed by folding in the direction, and a dowel is provided as a detent means on the outer surface of the insertion portion, both downward hooks are fitted to the lower edges of the locking holes, respectively. In the locked state, after inserting the insertion portions of the two spring pieces of the elastic regulating body fitted from the inside of the connecting member into the notches, respectively, the upper end of the hook and the upper edge of the locking hole are provided. The detent is inserted until the dowel passes through the locking hole, so that the insertion portion is not detented. Then, it is to retaining eye hook in the insertion portion.

In addition, a vertically long locking hole is formed in a side surface of a support column or the like, and a downward hook is protruded from a connecting plate vertically suspended from an end of the connecting rod, and an end of the connecting plate located at an upper end of the hook is provided. A notch opened laterally is formed at the edge, and an insertion portion is formed outwardly at the tip of one leg in an approximately V-shape in plan view as an elastic regulating body, and the tip is formed at the tip of the other leg. In the case where an engagement groove is formed as a detent means in a direction opposite to the insertion portion, the insertion portion of the elastic regulating body is engaged with the downward hook fitted to the lower edge of the engagement hole. After being located in the notch, the hook is inserted between the upper end of the hook and the upper edge of the locking hole, and both legs are pressed down to engage the engaging groove with the vertical edge in the notch, thereby inserting the hook. The part is detented, and the hook is prevented from being pulled out by the insertion part.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention; FIG. 1 shows a display fixture employing a connecting rod retaining / locking device of the present invention, and FIGS. 2 to 5 show a first embodiment of the present invention. In FIG.
Denotes a connecting member, and 4 denotes an elastic regulating body.

As shown in FIG. 1, the display fixture illustrated to explain the present invention is one in which shelves 6,... Are mounted on the front and rear surfaces of a support frame 5 in multiple stages. The upper and lower portions between the pair of legs 7, 7 are integrally connected by connecting rods 2, 2.
Is fixed. The shelf 6 includes a main body 9 on which articles such as video tapes and CDs are placed, side plates 10 and 10 attached to both ends of the main body 9, and mounting portions 11 and 11 fitted and locked to the support column 1. Consists of The main body 9 is formed by bending a bottom plate 12 and a back plate 13 into a substantially L-shape in a side view from a steel plate material, and using slit holes 14, 14 formed in the bottom plate 12 and the back plate 13. One or more partition plates 15 are attached. The present invention realizes the construction of an assembling display fixture by connecting the connecting rod 2 to the member such as the support column 1 in a detachable manner and preventing the connecting rod 2 from being detached due to vibration or the like during movement. .

The support column 1 has the lower ends of the grounding rods 8 and 8 fixed horizontally to form the leg 7 as described above. The side surface 16 on which the connecting rod 2 is mounted is spaced vertically. Are arranged side by side.

The connecting rod 2 is a rod whose lower part is opened, and a connecting member 3 having a substantially U-shaped cross section is provided at an end in the concave groove 18.
Are inserted and welded, and are vertically installed. The connecting member 3 includes connecting plates 19 on both sides and an inner plate 20 near the center of the connecting rod 2.
The ends 21 of the free ends 9 and 19 are set flush with the end face 22 of the connecting rod 2, and the upper and lower connecting plates 19 and 19 are fitted and locked in the locking holes 17 and 17, respectively. Downward hook 2
Notches 24, 2 having a rectangular shape as viewed from the front and open laterally at the edges of both connecting plates 19, 19 located at the upper ends of a pair of downward hooks 23, 23, which project downward.
4 is formed. The lower edge of the notch 24 and the upper edge of the downward hook 23 form a continuous horizontal edge 25, and the inner side edge of the connecting plate 19 of the notch 24 forms a vertical edge 26. .

The structures of the column 1, the connecting rod 2 and the connecting member 3 are common to this embodiment and a second embodiment described later.
As shown in FIGS. 2 and 3, the elastic restricting body 4a in the present embodiment is formed by bending spring pieces 28, 28 at both ends of a base piece 27 with a metal, preferably a spring material. It is formed in a substantially U-shape in plan view and fitted to both connecting plates 19 and 19 and the inner plate 20 of the member 3.
The distal end portion 18 is stepped inward to form an insertion portion 29, and a dowel 30 as a detent means is projected from the face of the insertion portion 29, and an arch is provided at the center of the base piece 27. A finger hook 31 protruding outward in the shape of a circle is formed. Here, the length of the insertion portion 29 is equal to the length of the connecting plate 1.
9 is set to be slightly shorter than the lateral width of the cutout 24.

In this embodiment, as shown in FIGS. 4 and 5, each of the downward hooks 23 projecting from both connecting plates 19 of the connecting member 3 fixed to the connecting rod 2 is connected to the aforementioned Bottom edge 1 of locking hole 17 formed in side surface 16 of column 1
7a, the outer edge of the connecting plate 19 is fitted from the inside of the connecting plate 19, that is, from the inner plate 20 side in a state where the edge 21 of the connecting plate 19 and the end face 22 of the connecting rod 2 are in contact with the side surface 16 of the column 1. After the insertion portions 29, 29 of the two spring pieces 28, 28 of the elastic restricting body 4a are positioned in the notches 24, 24, respectively, the elastic restricting body 4 is further pushed in. The insertion portion 29 moves along the horizontal edge 25 formed by the edge and the lower edge of the notch 24 to enter the locking hole 17, and the insertion portion 29 is moved between the upper end of the hook 23 and the upper edge 17 b of the locking hole 17. The dowel 30 is inserted and mounted until it passes through the locking hole 17,
The elastic stopper 4 is detented by the dowel 30, and the upward movement of the downward hook 23 is restricted by the insertion portion 29, so that the downward hook 23 is prevented from being pulled out and the connecting rod 2 is connected to the column 1.

Here, as a matter of course, the insertion portion 29
Is set to be equal to or slightly smaller than the width obtained by subtracting the vertical width of the neck 32 of the downward hook 23 from the vertical width of the locking hole 17. Before the downward hook 23 is fitted and locked in the locking hole 17, the elastic restricting body 4 a fits both spring pieces 28, 28 to the connecting member 3 and fits both insertion portions 29, 2.
9 can be fitted in the notches 24, 24, and in this state, the stepped portion of the insertion portion 29 abuts on the vertical edge 26 of the notch 24 to prevent removal. It is also possible to fit and lock the downward hook 23 into the locking hole 17 in the fitted state.

When the connecting rod 2 is to be detached from the column 1, if a finger is hooked on the finger hook 31 of the elastic restricting body 4a and pulled strongly, the dowel 30 passes through the locking hole 17, and comes off. With the insertion section 29 retracted to the inside of the notch 24,
After the two spring pieces 28 are expanded and pulled out, the connecting rod 2 is lifted upward and the downward hooks 23,... Of the connecting member 3 are pulled out from the locking holes 17,.

Further, a second embodiment of the present invention will be described with reference to FIGS.
In this embodiment, the structures of the support 1, the connecting rod 2, and the connecting member 3 are the same as those described above. Accordingly, in the present embodiment, as shown in FIGS. 6 and 7, the elastic leg 4b is made of synthetic resin and integrally molded in a substantially V-shape in plan view so that the two legs 33, 33 have elasticity. The insertion portion 34 is formed to be bent outward at the end of one of the leg pieces 33, and the engagement groove 35 is formed at the end of the other leg piece 33 as a detent means in a direction opposite to the insertion portion 34. Is used. More specifically, the engagement groove 35 includes a short piece 36 protruding outward at the distal end of the leg piece 33 and a long piece protruding outward at a predetermined distance closer to the base end than the short piece 36. 37. Here, the vertical width of the insertion portion 34 is the same as that of the locking hole 1.
7 is set to be equal to or slightly smaller than the width obtained by subtracting the vertical width of the neck portion 32 of the downward hook 23 from the vertical width of the lower hook 7. The vertical width of the tip of the other leg 33 forming the engagement groove 35 and the vertical width of the short piece 36 are set to be equal to or slightly narrower than the vertical width of the notch 24. The vertical width of the long piece 37 may be larger than the vertical width of the notch 24, but in this embodiment, the vertical width of the elastic restricting body 4b is set to the same width including the insertion portion 34. are doing. Further, the length of the leg 33 provided with the engagement groove 35 is set slightly shorter than the length of the one leg 33 provided with the insertion portion 34.

As shown in FIGS. 8 and 9, the downward hooks 23 projecting from both connecting plates 19 of the connecting member 3 fixed to the connecting rod 2 are attached to the side surfaces 16 of the column 1. Are fitted into and locked to the lower edges 17a of the locking holes 17, and the elastic restricting body is held in a state where the edge 21 of the connecting plate 19 and the end face 22 of the connecting rod 2 are in contact with the side surface 16 of the column 1. After the insertion portion 34 of 4b is positioned in the cutout portion 24, the insertion portion 34 is inserted between the upper edge of the downward hook 23 and the upper edge 17b of the locking hole 17 while guiding the insertion portion 34 with the horizontal edge 25. The short pieces 36 are passed through the vertical edges 26 in the cutouts 24 and the long pieces 37 are brought into contact with the surface of the connecting plate 19 by compressing the pieces 33, 33 so as to narrow the opening angle of the legs. By inserting the engaging groove 35 into the vertical edge 26, The part 34 is always biased in a direction to fit into the retaining hole 17 and the detent and is to retaining because the downward hook 23 in the insert 34. Here, the insertion portion 34 is fitted into the locking hole 17, and the engagement groove 35 is
In the state of engagement with the vertical edge 26, the two leg pieces 33 are constantly elastically urged in the expanding direction, and the engaged state is reliably maintained.

When the connecting rod 2 is to be detached from the support 1, the two legs 33, 33 of the elastic restricting body 4b are pinched or the outer leg 33 is pressed toward the support 1, so that the two legs are removed. The insertion portion 34 is pulled out from the locking hole 17 in a state where the engagement groove 35 is removed from the vertical edge 26 of the notch 24 by compressing and compressing the 33, 33, and then the connecting rod 2 is lifted upward and the downward hooks 23,. Are pulled out from the locking holes 17,.

[0023]

The connecting rod retaining / connecting device of the present invention as described above has the following remarkable effects.

According to the first aspect, after the downward hook protruding from the connecting plate vertically extending from the end of the connecting rod is fitted and locked into the vertically long locking hole formed on the side surface of the support column or the like, it is separated. The insertion portion of the elastic regulating body made of a body is laterally opened at the edge of the connecting plate located at the upper end of the hook, and a cutout formed between the upper end of the hook and the upper edge of the locking hole. By inserting and stopping the insertion portion by the detent means provided on the elastic regulating body, the upward movement of the hook can be restricted, and the hook can be prevented from being pulled out and the connecting rod can be connected to the support or the like. Also, since the elastic restricting body is manufactured separately from the connecting rod or the connecting member, the manufacturing process can be omitted, and the cost can be reduced.

According to the second aspect, the elastic regulating body has a substantially U-shape in a plan view, which is fitted to the connecting member, and the distal end portions of both spring pieces are stepped inward to form an insertion portion. Since the dowel as a detent means is projected from the outer surface of the insertion part, the insertion part is inserted between the upper edge of the downward hook and the upper edge of the locking hole, and the dowel passes through the locking hole. Then
Since the insertion part is detented, there is no danger that the downward hook may accidentally come off from the locking hole due to vibrations during movement, and when removing the connecting rod from the support, pull the elastic regulating body to remove the insertion part. It can be easily done by pulling out from the locking hole, and even if the connecting rod is not connected to the support,
By fitting the elastic restrictor outside the connecting member and fitting both insertion portions into the cutouts, the elastic restrictor does not come off the connecting member, and thus the loss of the elastic restrictor can be prevented.

According to the third aspect of the present invention, the insertion portion is bent outward at the tip of one of the legs in a substantially V-shape in plan view as the elastic regulating member, and the insertion portion is formed at the tip of the other leg. Since an engagement groove is formed as a detent means in the opposite direction, the insertion portion of the elastic regulating body is fitted between the upper edge of the downward hook and the upper edge of the locking hole, and the engagement groove is formed in the notch. It is engaged with the vertical edge and is always elastically urged in the expanding direction by both legs, so that the mounting state of the elastic regulating body is extremely stable,
There is no danger that the downward hook may come off from the locking hole unexpectedly due to vibration or the like at the time of movement, and the work of attaching and detaching the elastic regulating body can be easily performed with the fingers from the front side of the connecting plate of the connecting member.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a display fixture using a support frame constituted by a connecting rod retaining / connecting device of the present invention.

FIG. 2 is an exploded perspective view of a main part showing the first embodiment of the present invention.

FIG. 3 is an enlarged perspective view of the elastic regulating body.

FIG. 4 is a longitudinal sectional view of a main part in a state where a connecting rod is attached to a support.

FIG. 5 is a cross-sectional view of a main part in the same manner.

FIG. 6 is an exploded perspective view of a main part showing a second embodiment of the present invention.

FIG. 7 is an enlarged perspective view of the elastic regulating body.

FIG. 8 is a vertical cross-sectional view of a main part in a state where the connecting rod is attached to a support.

FIG. 9 is a cross-sectional view of a main part of the same.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 support 2 connecting rod 3 connecting member 4, 4 a, 4 b elastic regulating body 5 support frame 6 shelf 7 leg 8 grounding rod 9 main body 10 side plate 11 mounting portion 12 bottom plate 13 back plate 14 slit hole 15 partition plate 16 side surface 17 Locking hole 18 Concave groove 19 Connecting plate 20 Inner plate 21 Edge 22 End face 23 Downward hook 24 Notch 25 Horizontal edge 26 Vertical edge 27 Base piece 28 Spring piece 29 Insertion part 30 Dowel 31 Finger hook 32 Neck 33 Leg piece 34 Insertion part 35 Engagement groove 36 Short piece 37 Long piece

Claims (3)

(57) [Claims] 1. A vertically long locking hole is formed in a side surface of a column or the like,
A downwardly extending hook that fits into and engages with the locking hole protrudes from a connecting plate that is vertically provided at an end of the connecting rod, and a notch that is opened laterally at an end edge of the connecting plate that is located at the upper end of the hook. Forming a portion, and inserting the insertion portion of the elastic regulating body between the upper end of the hook and the upper edge of the locking hole from the notch in a state where the downward hook is fitted and locked to the lower edge of the locking hole, A detent connecting device for a connecting rod, wherein the insertion part is detented by detent means provided on the elastic restricting body, the hook is stopped, and the connecting rod is connected to a support or the like. 2. A connecting member having a pair of U-shaped cross-sections having a pair of connecting plates at ends of a connecting rod, at least a pair of vertically long locking holes are provided side by side on a column or the like. Along with projecting downward hooks to be fitted and locked in the respective locking holes, a notch portion opened laterally is formed at an edge portion of both connecting plates located at upper ends of the pair of hooks, and Along with inwardly bending the distal ends of both spring pieces of the elastic restricting body having a substantially U-shape in plan view to be externally fitted to form an insertion portion,
A dowel as a detent means protrudes from the outer surface of the insertion portion,
In a state in which the both downward hooks are fitted and locked to the lower edges of the locking holes, respectively, the insertion portions of the two spring pieces of the elastic restricting body fitted from the inside of the connecting member are respectively positioned in the cutout portions. The connecting rod is inserted between the upper end of the hook and the upper edge of the locking hole until the dowel passes through the locking hole, stops the hook, and connects the connecting rod to a column or the like. Detachable coupling device. 3. A vertically long locking hole is formed in a side surface of a column or the like,
A downwardly extending hook that fits into and engages with the locking hole protrudes from a connecting plate that is vertically provided at an end of the connecting rod, and a notch that is opened laterally at an end edge of the connecting plate that is located at the upper end of the hook. Forming an insertion portion outwardly at the tip of one leg of the elastic regulating body having a substantially V-shape in plan view, and stopping at the tip of the other leg in a direction opposite to the insertion portion. An engaging groove is formed as a means, and the insertion portion of the elastic regulating body is positioned in the cutout portion in a state where the downward hook is fitted and locked to the lower edge of the locking hole. And inserted between the upper edges of the notches, and by pressing and narrowing both leg pieces, the engaging grooves are engaged with the vertical edges in the cutout portions, the hooks are prevented from being pulled out, and the connecting rod is connected to a support or the like. And a connecting rod retaining device.