JP2831931B2 - Shelf support - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shelf receiving device used for furniture and the like, in particular, a female member buried and fixed to the back side of a side of a shelf, and a projection attached to the side plate for receiving the shelf. The present invention relates to a shelf receiving member comprising a male member having a shape of a circle.

[0002]

2. Description of the Related Art A conventional shelf board receiver of this type is generally formed by a bar-shaped male member projecting horizontally from a side plate and a notch formed on a side of the shelf plate. And a concave portion on the shelf side is fitted to the tip of the rod-shaped male member to support the shelf side by the male member. Was. In the shelf receiving device having such a configuration, when the side plate is aged and warps in a direction away from the shelf, the concave portion on the side of the shelf is detached from the rod-shaped male member, or both are fitted. When the load is applied due to the shallow depth, the shelf plate may easily fall off.

In order to solve such a problem, a bulging head is eccentrically connected to the tip of the shaft of the male member, and the female member buried and fixed to the back side of the shelf board includes: A shelf support having a concave portion into which the eccentric head of the male member fits has been considered. In the case of such a shelf support, the eccentric head of the male member and the concave portion of the female member can be fitted and removed only in the vertical direction, so that in use, the side plate to which the male member is attached is used. Is prevented from being warped in the direction away from the shelf plate to which the female member is fixed by fitting the eccentric head of the male member and the concave portion of the female member. Will not be.

However, each male member (usually four members are used for one shelf plate) must be attached to the side plate with high accuracy, with the eccentric head of the male member hanging right below the shaft. For example, the recesses of the female members attached to the shelf cannot be smoothly fitted to the eccentric heads of the male members.
Of course, the shafts of each male member must be accurately mounted parallel to each other and perpendicular to the side plates. In other words, the mounting of the male member requires high accuracy, which is not practical.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and its features are indicated by parenthesized reference numerals in the embodiments described later. As shown, it is composed of a female member (1) and a male member (2), and the female member (1) is buried in contact with the end surface (3b) of the shelf plate on the back surface (3a) side of the shelf plate (3). A vertically fixed substantially cylindrical concave portion (7) having a lower end opened, and a vertical engaging opening formed on a side portion of the concave portion (7) and opened on a shelf end surface (3b). (8)
And the width of the engaging opening (8) is a columnar recess (7).
The male member (2) is smaller than the diameter of the shaft member (9), which is fixed in the hole (15) of the side plate (4) for receiving the shelf plate (3). The outer end has a spherical projection (10) concentrically connected thereto, and the shaft (9) is provided with an engagement opening (8) of the female member (1).
And the spherical projection (10)
Vertical Hamada' freely fitted into a cylindrical recess (7) of the female member (1), the shank (9) protrudes from the peripheral surface thereof the threads form
A ridge (12) is provided, and the spherical protrusion (10) has a groove for rotation operation.
It is characterized in that (13) is provided .

In practicing the present invention, a female member
Insert the inner surface (7a) of the upper end of the cylindrical recess (7) of (1)
(2) the spherical projections (10) with Ru can be formed in a spherical shape of surface contact. The ridge (12) projecting from the peripheral surface of the shaft (9) of the male member (2) in a thread form can be provided only in the base region of the shaft (9).

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the accompanying drawings. 1 is a female member, 2 is a male member, 3 is a shelf, and 4 is a side plate for supporting the shelf 3. is there. Female member 1
Is a molded product of plastic or metal, and has a substantially cylindrical body portion 5, a flange portion 6 integrally formed so as to protrude from the lower end thereof, a cylindrical concave portion 7, and an engagement opening portion 8. And On the peripheral surface of the body portion 5, retaining ridges 5a having a saw-tooth cross section that are continuous in the circumferential direction are formed at regular intervals in the axial direction.

The body 5 and the flange 6 have a shape in which one side is cut so as to form a flat portion 5b on the circumferential surface of the body 5, and the columnar concave portion 7 is formed on the circumferential surface of the body. Flat part 5b
Is formed vertically from the lower end of the body portion 5 (the lower surface of the flange portion 6) so as to be adjacent to. More specifically, the cross-sectional shape of the cylindrical concave portion 7 is also a shape in which a portion adjacent to the flat portion 5b of the body peripheral surface is cut into a flat shape, and the inside of the flat portion 5b of the body peripheral surface is formed. An opening 8 for engagement is provided in a thin portion of the. The engagement opening 8 is formed by notching upward from a lower end of the body 5 (lower side surface of the flange 6), and has a width smaller than the diameter of the columnar recess 7 and widening downward. .

The male member 2 is a molded product made of plastic or metal, and comprises a shaft portion 9 and a large-diameter spherical projection portion 10 formed concentrically and integrally with the tip of the shaft portion 9. The base of the shaft 9 has an engagement opening 8 of the female member 1.
A circular seat portion 11 having a diameter and a thickness that fits into the shaft portion 9 is formed, and a plurality of ridges 12 projecting in a thread shape are integrally formed only on the peripheral surface near the base of the shaft portion 9. A rotation operation groove 13 is provided at the top of the spherical projection 10 along the diameter direction.

The female member 1 is positioned adjacent to both longitudinal sides of the back surface 3a of the shelf 3 at two positions before and after the side so that a part of the female member 1 is open to the shelf end 3b. The flange portion 6 is press-fitted and fixed to the formed circular concave portion 14 so as to abut the back surface 3a of the shelf board. At this time, the flat portion 5b of the body peripheral surface is exposed at a portion of the circular concave portion 14 opening to the shelf end face 3b so as to be substantially flush with the shelf end face 3b.

The male member 2 is mounted at each position corresponding to the female member 1 which is press-fitted and fixed to the shelf 3 at the shelf support level of the side plate 4. That is, the shaft portion 9 is press-fitted into the shaft hole 15 provided on the side plate 4 and having substantially the same inner diameter as the shaft portion 9 so that the ridge 12 bites into the inner surface of the shaft hole 15.
Is brought into contact with the surface of the side plate 4.

When the female member 1 is attached to the shelf 3 and the male member 2 is attached to the side plate 4 as described above, the shelf 3 is lowered from the position above each male member 2 directly below, and The spherical projection 1 of each male member 2 is inserted into the cylindrical recess 7 of the female member 1.
0 is inserted. At this time, the base of the shaft 9 of the male member 2, that is, the circular seat 11 is engaged with the engagement opening 8 of the female member 1.
To fit. When the spherical projection 10 of the male member 2 comes into contact with the upper inner surface 7a of the cylindrical recess 7 of the female member 1, the shelf 3 is supported by the male member 2.

The shelf plate 3 supported as described above is easily removed by lifting the shelf plate 3 to separate the female member 1 on the shelf plate 3 side from the male member 2 on the side plate 4 side. Can be. The male member 2 can be replaced with a shaft hole 15 of another level in order to change the support level of the shelf 3, but at this time, the shaft portion 9 of the male member 2 is easily removed from the shaft hole 15. If it is not possible, a coin or a screwdriver is fitted into the rotation operation groove 13 of the spherical projection 10 and the male member 2 is rotated in the unscrew direction, so that the protrusion that bites into the inner peripheral surface of the shaft hole 15 is formed. The shaft portion 9 can easily and easily escape from the shaft hole 15 by the action of the ridge 12. Also, when it is difficult to completely press-fit the shaft portion 9 of the male member 2 into the shaft hole 15, the male member 2 is rotated in the screwing direction as described above, and the shaft portion 9 is screwed. It is also possible to completely fit in the shaft hole 15.

The upper inner surface 7 of the cylindrical recess 7 of the female member 1
Although a may be flat and may be in a state of point contact with the spherical protrusion 10 of the male member 2, the upper inner surface 7 a of the cylindrical concave portion 7 may make surface contact with the spherical protrusion 10 as shown in the figure. It is desirable to form the sphere so that the load on the shelf 3 side is received by the wide surface of the spherical projection 10. The thread-shaped ridge 12 projecting from the shaft portion 9 of the male member 2 has a large inclination angle (about 20 degrees) and a short circumferential length (about 60 degrees) as shown in the figure. By arranging them at equal intervals in the circumferential direction and in a plurality of stages in the axial direction, while reducing the resistance when the shaft portion 9 is pressed into the shaft hole 15, the protrusions 12 at the time of extracting the male member are reduced. The intended functions can be reliably demonstrated.

The ridges 12 can be arranged over the entire area of the shaft portion 9.
Not only increases the resistance when press-fitting into the shaft hole 15,
The shaft hole 15 is expanded over the entire area in contact with the shaft portion 9,
Since the shaft 9 cannot be stably supported, as shown in the embodiment, the ridge 12 is provided only in the base region of the shaft 9.
It is desirable to protrude.

Of course, the shaft portion 9 is a normal screw shaft and the side plate 4
The shaft hole 9 may be fixed to the side plate 4 by screwing the shaft hole 15 into a screw hole. Side plate 4 in this case
The screw hole on the side can be formed by, for example, press-fitting and fixing a cylindrical body having a screw hole into a mounting hole of the side plate, as is well known in the art.

[0017]

According to the shelf board receiver of the present invention which can be carried out as described above, the spherical projection of the male member projecting from the side plate side and the cylindrical concave portion of the female member on the shelf board side are provided. The shelf is supported by the vertical fitting of the cylindrical recess. Even if the spherical projection can be detached from the cylindrical recess in the vertical direction (the depth direction of the cylindrical recess), On the other hand, since the spherical projection cannot be disengaged in the horizontal direction, that is, in the length direction of the shaft of the male member, the side plate is deformed to warp in the direction away from the shelf plate due to aging distortion. Also, the deformation (warpage) can be prevented by fitting the female member and the male member. Therefore,
The warp of the side plate as described above makes it easy for the shelf plate to come off or the shelf plate to fall off.

Further, according to the structure of the present invention, the portion of the male member to be fitted into the female member is formed concentrically at the tip of the shaft of the male member fixed in the shaft hole of the side plate. Since the spherical projections have no directivity, if the position of the spherical projections is accurate, a plurality of female members on the shelf side are used for a plurality of male members supporting the shelf. The fitting can be performed easily and smoothly. In addition, the spherical projection of the male member fitted in the cylindrical recess of the female member may be any number within the range of play between the engagement opening through which the shaft of the male member passes and the shaft. Therefore, even if the shaft of the male member is slightly misaligned, as long as the position of the spherical projection is accurate, the spherical projection is securely inserted into the cylindrical recess. Can be fitted. Therefore, attachment of the male member to the side plate becomes very easy. Further, since the male member can also be configured to be very compact, the cost can be reduced. Furthermore, the shaft of the male member
Is provided with a ridge projecting from its peripheral surface in a thread shape.
And the spherical projection of the male member
Grooves provide easy removal of male members
It can be done easily.

As described in claim 2, by forming the inner surface of the upper end of the cylindrical concave portion of the female member into a spherical shape which is in surface contact with the spherical projection of the male member, the load on the shelf side can be improved. Can be supported by the wide surface of the spherical projection of the male member,
Load bearing performance can be improved. According to the third aspect of the present invention, by providing a ridge protruding in a thread form from the peripheral surface of the shaft of the male member only in the base region of the shaft, the shaft is pressed into the shaft hole of the side plate. And the shaft portion can be stably supported.

[Brief description of the drawings]

FIG. 1A is a longitudinal sectional side view in a use state, and FIG. B is a partially cutaway side view showing a female member and a male member separately.

FIG. 2 is a bottom view in a state where a male member is fitted to a female member.

FIG. 3 is a front view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Female member 2 Male member 3 Shelf 3a Shelf back surface 3b Shelf end surface 4 Side plate 5 Body 5a Retaining ridge 5b Flat part of body peripheral surface 6 Flange part 7 Cylindrical recess 7a Upper inner surface 8 Engagement opening 9 Shaft 10 Spherical projection 11 Circular seat 12 Threaded ridge 13 Rotational operation groove 14 Circular recess 15 Shaft hole

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A47B 57/48-57/50

Claims (3)

(57) [Claims] A female member (1) and a male member (2), and the female member (1) is provided on the back surface (3a) side of the shelf plate (3) at the end surface (3b) of the shelf plate.
A vertical columnar recess (7) having a lower end opened, and a vertical columnar recess (7) formed at the side of the recess (7) and opening at the end face (3b) of the shelf board. Engagement opening
(8), and the width of the engaging opening (8) is a cylindrical recess.
The male member (2) is smaller than the diameter of (7), and the male member (2) has a shaft portion (9) fitted and fixed in the hole (15) of the side plate (4) for receiving the shelf plate (3). 9) has a spherical projection (10) concentrically connected to the outer end thereof, and the shaft (9) has:
The female member (1) is fitted vertically into and out of the engagement opening (8) so that the spherical protrusion (10) is vertically inserted into the cylindrical recess (7) of the female member (1). The shaft portion (9) is provided with a ridge (12) projecting in a thread form from its peripheral surface,
A shelf board receiving device provided with a rotation operation groove (13) on the spherical projection (10). An inner surface (7a) of the upper end of the cylindrical recess (7) of the female member (1) is formed in a spherical shape in surface contact with the spherical projection (10) of the male member (2). The shelf board receiving device according to claim 1. 3. A threaded projecting ridge (12) is a male member.
Claims provided only in the base region of the shaft (9) of (2).
2. The shelf support according to 1 .