JP3456440B2 - Pipe mounting structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe mounting structure which is preferably used when mounting a pipe member at a predetermined position by screwing.

[0002]

2. Description of the Related Art Conventionally, when mounting a pipe member at a predetermined position by screwing, a through hole is formed in the pipe member,
A pipe member is attached by penetrating a screw into the through hole and screwing the screw into a screw hole provided at a predetermined position. When such a through hole is formed, a recess (dent) is irreversibly formed around the through hole at the same time when the through hole is drilled. Therefore, the recess is reversely used as a place for surrounding and hiding the periphery of the head of the screw to prevent deterioration of the appearance due to the head of the screw protruding from the surface of the pipe member.

[0003]

However, in such a case, in order to surely conceal the head of the screw so as not to project it from the surface of the pipe member, it is necessary to form a recess depressed to some extent. Therefore, the periphery of the through-hole is retroactively deformed to be thin, and the strength of that portion is reduced. Further, when the pipe member is relatively thin, there is a limit to forming a recess while maintaining the strength, and since it is practically impossible to form such a recess, the screw head is It directly projects from the surface of the pipe member. In this way, if the head of the hard screw directly projects from the surface of the pipe member, the screw or the pipe member or its mounting position is easily damaged when an object hits, and the appearance is not good. There is. Further, the head of the screw may injure the hand or foot.

[0004]

In view of the above problems, the present invention allows the head of a screw to directly project from the surface of a pipe member without enlarging the recess provided around the through hole. In addition, the pipe mounting structure is configured so that the pipe member can be mounted while improving the appearance without lowering the strength of the pipe member in the recess.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION That is, according to the pipe mounting structure of the present invention, a screw is passed through a through hole provided in a pipe member, and the screw is screwed into a screw hole provided at a predetermined position so that the screw is provided at the predetermined position. A pipe member is attached, a recess is provided around the through hole, and a pedestal member that opens a screw insertion hole at the center is interposed between the recess and the head of the screw, the head outer end surface of the screw in a threaded state, the
It is characterized in that the pipe member is made to be substantially flush with the surface of the pedestal member or to be recessed from the surface of the pedestal member while protruding from the surface of the pipe member .

With such a structure, even if the recess is a recess formed at the same time when the through hole is formed, and the recess of the recess does not deepen and is relatively shallow, the head of the screw is formed. Does not project beyond the pedestal member, so that the external appearance becomes good and the strength around the through hole can be prevented from lowering. Also, since the head of the hard screw can be protected by the pedestal member, it is possible to prevent damage to the screw or pipe member or the position where it is attached, and to prevent injury to the limbs by preventing objects and limbs from hitting. You can also Further, the pedestal member also functions as a washer for the screw, so that the screw can be sufficiently tightened. Further, such a configuration is extremely effective especially when attaching a thin pipe member. Furthermore, when the present invention is applied to the outside of the pipe member in particular, it can serve as a bumper.

In order to more effectively protect the head of the screw by the pedestal member, the pedestal member has a bottom wall and a peripheral wall standing upright along the periphery of the bottom wall. It is desirable that the head of the screw is surrounded by the screwed state. In this case, in order to make the pedestal member to be fixed well while closely concealing the concave portion with the screw tightened state, and to make the fixing of the pedestal member good, the inward surface of the bottom wall that abuts on the concave portion is formed into the shape of the concave portion. It is effective to pre-form into a shape corresponding to.

In order to facilitate the formation of such a pedestal member and to minimize the amount of protrusion for hiding the head of the screw to achieve the intended purpose, the pedestal member is secured by tightening the screw. Is preferably formed of a resin material whose shape does not change. Further, in order to easily dispose the screw hole at a predetermined position, it is preferable that the screw hole is an inner circumference of a nut fixedly fixed at the predetermined position.

Especially when the pipe member is a leg of furniture and the leg is attached from the outer surface side of the pipe member, if the present invention is applied, the above effect becomes more effective, It is possible to effectively exhibit the function of the pedestal member as a bumper and further improve the appearance of the legs. In this case, when the furniture is arranged in the lower limb space, by applying the present invention, the head of the screw does not protrude, and the screw does not interfere or hurt the foot. Will be able to do so. Furthermore, when the leg has casters for movably supporting furniture at its lower end, and the lower limb space is a space under the top plate of a furniture with a top plate having side plates, the head of the screw is used. It is possible to very effectively prevent the side plate from being damaged by the portion.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, in this embodiment, a desk T having a pair of side plates Ta (shown by imaginary lines in the figure) is housed in a lower limb space S surrounded by the side plates Ta and the top plate Tb. 2 is a pipe mounting structure A applied when mounting the pipe members that form the columns 1 to the shelf plate 2 and the back plate 3 in the shelf B that is.

This shelf B is, as shown in FIGS. 1 and 2,
The shelf 2 includes a back plate 3 standing upright along the rear end 2a thereof, and a pair of columns 1 and 1 attached to the side wall 21 of the shelf 2 and the upper end 31a of the side wall 31 of the back plate 3. As shown in FIGS. 2 to 4, the shelf plate 2 is formed by bending the periphery of a plate-shaped sheet metal material downward, and the left and right side walls 21 have inner surfaces of front ends 21a and rear ends 21b thereof. A nut 6 having a screw hole is welded to the inner circumference 61. Also, this screw hole 6
The through hole 22 corresponding to No. 1 is formed in the side wall 21. Further, the back plate 3 is also formed by bending a sheet metal material, and as shown in FIG. 2, the lower end 3a is attached to the rear end 2a of the shelf plate 2 by an appropriate means such as concave and convex engagement. On the upper end 31a,
The nut 6 is fixed like the shelf board 2, and the insertion hole 3
2 is drilled.

As shown in FIGS. 1 and 2, the support column 1 is formed by bending a single steel circular pipe member into an inverted U-shape, and the front leg 11 and the rear leg 12 are formed substantially in the depth of the shelf board 2. Stand up while separating the dimensions, and the upper ends 1 of the front legs 11 and the rear legs 12
1a and 12a are connected to each other by a connecting element 13 that curves upward. In addition, casters 16 that can roll on the lower ends 11b and 12b of the front legs 11 and the rear legs 12 are arranged on the column 1, respectively, so that the shelf B can be moved. The screws 5 are attached to the corresponding intermediate height positions of the front legs 11 and the rear legs 12 to which the support columns 1 are to be attached to the shelf board 2, and to the upper ends 12a of the rear legs 12 to which the support columns 1 are to be attached to the back plate 3.
Through holes 14 for penetrating through are punched. At the time of this placement work, a shallow recessed recess 15 as shown in FIGS. 2 to 4 is formed around the through hole 14 in the placement direction.

In this embodiment, when the pair of support columns 1 and 1 having such a structure are attached to the shelf plate 2 and the back plate 3, as shown in FIG. Board 2
And the nut 6 of the back plate 3, and at this time, the resin base member 4 is interposed between the head 51 of the screw 5 and the recess 15 formed around the through hole 14. I am letting you. This resin material has such hardness that it is not easily deformed when the screw 5 is tightened or an object is hit from the outside. As shown in FIGS. 3 and 4, the pedestal member 4 has a ring-shaped bottom wall 41 having a screw insertion hole 41a through which the shaft portion 52 of the screw 5 can be inserted, and a periphery of the bottom wall 41. The peripheral wall 42 standing upright is integrally molded. The bottom wall 41 has an inward surface 4 that abuts the recess 15.
1b is bulged in advance so as to correspond to the shape of the recessed portion 15, and the protruding amount of the peripheral wall 42 surrounds the head 51 of the screw 5 when screwed and also serves as the outer surface 42a which is the surface of the base member 4. Is set so as to slightly project from the head outer end surface 51 a of the screw 5.

In such a structure, the column 1 has the front end 21a of the side wall 21 of the shelf 2 at the intermediate height position of the front leg 11.
The intermediate height position of the rear leg 12 is attached to the rear end 21b of the side wall 21 of the shelf board 2, and the upper end 12a of the rear leg 12 is attached to the upper end 31a of the side wall 31 of the back plate 3 as follows. Since the left and right columns 1 are attached to each part in the same configuration, the case of attaching the front leg 11 of the right column 1 will be described below with reference to FIGS. 2 to 4.

At the position of the insertion hole 22 provided at the front end 21a of the side wall 21 of the shelf board 2, the through hole 1 provided at the front leg 11 of the column 1.
4 are aligned, the bottom wall 41 of the pedestal member 4 is abutted against the recess 15 from the outside of the front leg 11, and the through hole 14 and the screw insertion hole 41a are provided.
The screw 5 is inserted into the screw insertion hole 41a, the through hole 14, and the insertion hole 22 from the outside and screwed to the nut 6. Then, when the tightening of the screw 5 is completed, the head inner end surface 51b of the screw 5 presses the bottom wall 41 of the pedestal member 4, and the inward surface 41b of this bottom wall 41 is recessed 1
5, the head outer end surface 51a of the screw 5
However, the pedestal member 4 is located in a state in which the peripheral wall 42 of the pedestal member 4 is slightly recessed from the outward surface 42a.

According to this embodiment, even if the depression of the concave portion 15 is made relatively shallow by the above-mentioned structure, the concave portion 15 is utilized to the contrary, so that the head portion 51 of the screw 5 is screwed into the pedestal member. The head 51 of the screw 5 can be effectively hidden in a state in which the head outer end surface 51a is more recessed than the outward surface 42a, which is the surface of the pedestal member 4, because the head 51 is effectively hidden. It is possible to improve the external appearance and effectively prevent the strength of the recess 15 from being reduced, as compared with the case where the head is directly hidden by the recess which is deeply depressed. Further, since the head 51 of the hard screw 5 is protected by the peripheral wall 42 of the pedestal member 4, objects and limbs will come into contact with the pedestal member 4, causing the pedestal member 4 to function as a bumper, the screw 5, the pillar It is possible to effectively prevent damage to the nut 1, the nut 6, the shelf 2, and the like, and damage to the limbs. Further, the pedestal member 4 is attached to the screw 5
Since it is also used as a washer, it is possible to sufficiently tighten the screw 5. Also, by configuring in this way,
The convenience of mounting the pillar 1 is not impaired.

In addition to the above structure, this pedestal member 4
Is composed of a bottom wall 41 and a peripheral wall 42, and the peripheral wall 42 surrounds the head portion 51 of the screw 5, so that a state in which the head portion 51 of the screw 5 does not protrude during screwing is appropriately realized. can do. In addition, the inward surface 41b of the bottom wall 41 is
Since it is preformed into a shape corresponding to the shape of the concave portion 15 and is brought into close contact with the concave portion 15 when the screw 5 is tightened, the concave portion can be concealed with a good appearance and the concave portion 1
The fixing to No. 5 can be made good. Further, since the pedestal member 4 is integrally formed of a resin material having a certain hardness, the pedestal member 4 can be easily manufactured, and the above-mentioned effect can be obtained even if the protrusion amount of the peripheral wall 42 is minimized. Can be played reliably.

Further, since the nut 6 having the screw hole on the inner circumference 61 is fixedly mounted on the shelf plate 2 and the back plate 3, it is not necessary to separately form the screw hole, and the screw 5 can be easily screwed. You can wear it. In addition, since the present embodiment is applied to the shelf B used in the lower limb space when attaching the support column 1 formed by bending the pipe member to the shelf board 2 and the like, the head of the screw 5 is particularly close to the feet. You can keep 51 out of the way. The shelf B is provided with casters 16 at the lower ends 11b and 12b of the front legs 11 and the rear legs 12 and is arranged in the space S below the top plate Tb of the desk T. Although the shelf B is easily moved by the movement, it is also very useful for preventing the side plate Ta from being damaged by the head 51 of the screw 5 and for preventing the injury of the foot.

The present invention is not limited to the above embodiment. For example, the pedestal member may be made of a flexible deformable rubber, and the bottom wall may be deformed along the depression of the recess by tightening the screw. In addition, when the recess is made large to some extent, the surface of the pedestal member and the surface of the pipe member may be substantially flush with each other to further improve the appearance. Further, the same effect as the above embodiment can be obtained even if the nut is arranged at the end of the beam or the like, or if the shelf plate or the like has a certain thickness or more, a screw hole is directly formed therein. it can. Further, it goes without saying that the recess may not be formed at the same time as the through hole, but may be positively formed after the through hole is formed.
Furthermore, the present invention is not limited to furniture such as the shelves and racks of the above-described embodiments, but can be widely applied when attaching pipe members to other members. In addition, the specific configuration of each unit is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0020]

The present invention is carried out in the form as described above, and has the following effects. That is, the pipe mounting structure of the present invention is a recess provided around the through hole for allowing the screw to penetrate the pipe member, for example, a recess formed simultaneously with the through hole when the through hole is driven, By interposing a pedestal member between the head of the screw,
The pipe member is attached at a predetermined position by screwing, and the outer end surface of the head portion of the screw is flush with the surface of the pedestal member or more than the surface of the pedestal member when screwed in. It is not necessary to deeply recess the recess to hide the head, and even if the recess is relatively shallow, the head of the screw can be hidden by the pedestal member, which improves the appearance and the strength of the recess of the pipe member. The decrease can be effectively prevented. Moreover, since the head of the hard screw is not directly projected from the surface of the pipe member but is protected by the pedestal member, when the present invention is applied to the outside of the pipe member, the pedestal member plays a role as a bumper. It is difficult to hit objects and limbs on the head of the screw, damage to members,
It is possible to effectively prevent scratches on the limbs. further,
Since this pedestal member is also utilized as a screw washer, it is possible to perform sufficient screw tightening. Further, the pipe member having such a structure can be attached very easily.

In the case where such a pedestal member is provided with a bottom wall and a peripheral wall standing upright around the bottom wall so that the peripheral wall surrounds the head of the screw when screwed, the pedestal as described above. The effect of the member can be easily achieved. further,
When the inward surface of the bottom wall that abuts the recess is formed in advance to have a shape corresponding to the recess, the recess and the bottom wall are brought into closer contact with each other to improve fixing to the recess and further improve the appearance. be able to.

Further, if such a pedestal member is made of a resin material that is not deformed by screw tightening or the like,
This pedestal member can be easily manufactured, and the above effect can be ensured even if the protrusion for hiding the head of the screw is minimized. Further, when a screw hole that can be screwed into the screw is provided on the inner circumference of the nut provided at a predetermined position, it is not necessary to separately form a screw hole, and screwing is very simple.

With the above construction, when the pipe member is a leg of furniture and the present invention is applied to the outer surface of the leg,
In particular, the appearance can be improved, and the pedestal member can properly function as a bumper. In such a case, when the furniture is arranged in the lower limb space, the intended effect of the head of the bolt not directly protruding from the surface of the leg is extremely remarkable. Further, if the leg is provided with casters at the lower end and the lower limb space is the space under the top plate of the furniture having the side plate, it is possible to effectively prevent the side plate from being damaged by the head of the bolt. .

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of the present invention applied to mounting legs of a shelf.

FIG. 2 is a perspective view showing the shelf in FIG. 1 in an enlarged and exploded manner.

FIG. 3 is a perspective view showing a main part in FIG. 2 in an enlarged and exploded manner.

FIG. 4 is an enlarged cross-sectional view showing a main part in FIG.

[Explanation of symbols]

A: Pipe mounting structure B ... Shelf S ... Lower limb space T ... top plate Ta ... Side plate 1 ... Pipe member (support) 2 ... Shelf board 3 ... Backboard 4 ... Pedestal member 5 ... screw 6 ... Nut 14 ... Through hole 15 ... Recess 16 ... Casters 41 ... Bottom wall 41a ... Screw insertion hole 41b ... Inward face 42 ... Surrounding wall 42a ... outward surface 51 ... Head 51a ... Outer end face of the head 51b ... inward end face of head 61 ... Screw hole (inner circumference)

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-8-10075 (JP, A) Actual development Sho 52-118111 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F16B 12/00-12/60 A47B 17/00 A47B 31/00 A47B 96/06 F16B 7/18-7/22 F16B 43/00

Claims (9)

(57) [Claims] 1. A pipe member is attached to a predetermined position by penetrating a screw into a through hole provided in the pipe member and screwing the screw into a screw hole provided at a predetermined position. A recess is provided around the through hole, and a pedestal member that opens a screw insertion hole at the center is interposed between the recess and the head of the screw, and the outer end surface of the screw head is screwed in a screwed state. , The pie
A pipe mounting structure, wherein the pipe mounting structure is configured so as to be substantially flush with the surface of the pedestal member or to be recessed from the surface of the pedestal member while projecting from the surface of the pedestal member. 2. The pipe mounting structure according to claim 1, wherein the recess is formed at the same time around the through hole when the through hole is driven into the pipe member. 3. The pedestal member includes a bottom wall and a peripheral wall standing upright along the periphery of the bottom wall, and the peripheral wall surrounds the head of the screw in a screwed state. The pipe mounting structure according to claim 1 or 2, which is characterized. 4. The pipe mounting structure according to claim 3, wherein an inward surface of the bottom wall that abuts the recess is preliminarily formed in a shape corresponding to the shape of the recess. 5. The pipe mounting structure according to claim 1, 2, 3 or 4, wherein the pedestal member is formed of a resin material whose shape is not deformed by tightening a screw. 6. The pipe mounting structure according to claim 1, wherein the screw hole is an inner circumference of a nut fixedly provided at a predetermined position. 7. The pipe member is a leg of furniture and is applied to an outer surface of the leg.
The pipe mounting structure according to 2, 3, 4, 5 or 6. 8. The pipe mounting structure according to claim 7, wherein the furniture is arranged in a lower limb space. 9. The leg has a caster at a lower end thereof for movably supporting furniture, and the lower limb space is a space under a top plate of a furniture with a top plate having a side plate. The pipe mounting structure according to claim 8, which is characterized in that.