JPH08205986A - Fitting structure for instrument - Google Patents

Abstract

PURPOSE: To improve strength against pulling force by engaging an engage groove part with a steel plate on the front surface side and further making it strongly intruded into the steel plate while extending its diameter to the outside by forming the engage groove part on the top end outer periphery of a plug. CONSTITUTION: When a plug 4 is inserted from the side of a steel plate 2 into a drill hole 1a pierced and formed on a wall panel 1, in the case of passing an outer protruding part 8 through the steel plate 2 at the time of insertion, the outer protruding part 8 is shrunk by reducing its diameter to the inside through an inserting side slit 7 and when the outer protruding part 8 is moved inside the steel plate 2, the outer protruding part 2 is stopped inside the steel plate 2 by extending its diameter inside the steel plate 2 because of elasticity. At such a time, the state of engaging an engage groove part 9 with the steel plate 2 is provided. Next, when a vis 15 passed through an instrument 16 is screwed from the front surface side into an inserting hole H of the plug 4, the screw of the vis 15 is intruded into a long projected line on the inner periphery of the plug 4 at the screwing time of the vis 15 and the long projected line is pushed outside. Thus, the diameter of the engage groove part 9 is extended through the inserting side slit 7, and the engage groove part 9 is strongly intruded into the steel plate 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for mounting a shower hook, a handrail, a towel rack, etc. on a wall panel.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
When attaching the instrument 52 to the wall panel 1 composed of the gypsum board 3 having the surface steel plate 2 with the screw 51, the reinforcing tree 53 is attached to the back side of the gypsum board 3, and the reinforcing tree 53 is attached.
On the other hand, the screw 51 is screwed in so that the screw 51 works on the reinforcing tree 53. In such a mounting structure, the reinforcing tree 53 is necessary, and the cost increases by the amount of the reinforcing tree 53. , A plurality of reinforcing trees 53 having different sizes are required depending on the type of shower hook, handrail, towel rack, etc., and the number of the reinforcing tree 53 increases, and it is reinforced according to the mounting position of the shower hook, handrail, towel rack, etc. There is a problem that the number of wall panels 1 to which the wood 53 is attached increases, and management of the constituent members becomes complicated. Conventionally, as shown in FIG. 10, an anchor plug 56 having a screw portion 56a on the outer periphery is used in order to make a screw work on the gypsum board, and the anchor plug 56 is previously fixed in the gypsum board 55. There is a mounting structure in which the screw 52 is screwed into the anchor plug 56 via the driver D and tightened, and the instrument 52 is mounted. When such an anchor plug 56 is used, the gypsum board 55 is against the pulling force to the outside. However, there is a problem in that it is easy to collapse and strength is weak, and special construction such as resin injection is required separately.

[0003]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above problems of the prior art, and an object thereof is not to provide a mounting structure having high strength against pulling-out force. A mounting structure for attaching an instrument to a wall panel made of gypsum boat having a steel plate on the surface through a screw, wherein a plug is inserted into a drill hole formed in the wall panel, and the screw is in the plug. It is screwed and fixed, and the plug has an engaging groove portion that engages with the steel plate when it is inserted into the drill hole and expands the diameter when the screw is screwed into the plug to make the steel plate difficult to fit. That is, it is formed on the outer circumference.

[0004]

[Function] The plug inserted into the drill hole of the wall panel is formed with an engaging groove portion on the outer periphery of the tip. When the plug is inserted into the drill hole, the engaging groove portion engages with the steel plate on the front surface side. Strength against pull-out force, and when the screw is screwed into the plug, the engagement groove part further expands to the outside to fit hard into the steel plate. The equipment can be attached to.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a state in which a plug is attached to the wall panel, and FIG. 2 is a sectional view showing a state in which a screw is screwed into the plug to attach an instrument. The present example relates to a mounting structure in which an instrument 16 is mounted with screws 15 to a wall panel 1 made of a gypsum board 3 having a steel plate 2 on the surface thereof. 1a is formed in advance, and the plug 4 is inserted into the drill hole 1a from the surface side to form the drill hole 1a.
The plug 4 is inserted in a.

The plug 4 is constructed as shown in an external perspective view in FIG. 3 and a partial sectional perspective view in FIG. 4. Furthermore, a front view is shown in FIG. 5 and a side view is shown in FIG. Further, FIG. 7 shows a sectional view taken along the line AA in FIG. 5, and FIG. 8 shows a sectional view taken along the line BB in FIG. 5, to explain the structure of the plug 4, and the plug 4 is made of resin. In addition, thin-plate-like collar plate portions 6 and 6 projecting outward are integrally formed on one end side of the cylindrical main body portion 5 formed with the insertion opening H for screwing the screw 15. The insertion port H is opened at the center position of the collar plate portions 6 and 6, and the main body part 5 is formed with an insertion side slit 7 which is recessed from the insertion port H toward the other end side. Due to this, elasticity is imparted to the collar plate portions 6 and 6 side of the main body portion 5 and the diameter is expanded outward. It is formed in the function.

On the outer periphery of the main body portion 5 on the side of the collar plate portion 6, two outer protruding portions 8, 8 are integrally formed so as to face each other so as to protrude toward the outer peripheral side. The outer protruding portion 8 and the collar plate The engagement groove 9 is formed in a recessed shape between the portions 6, and the engagement groove 9 is formed in a recessed shape having a diameter smaller than the outer diameter of the main body 5. Further, a distal end side slit 10 is formed on the other end side of the main body portion 5 so as to face the insertion side slit 7, and the distal end side slit 10 also imparts elasticity to the other end side of the main body portion 5 to expand the diameter. It is possible. Also,
On the inner peripheral side of the main body portion 5, a long ridge 11, 1 is projected inward at a position corresponding to the outer protruding portion 8 and extends in the longitudinal direction.
1 is formed, and the pair of long ridges 11, 1 is further formed.
Short ridges 12, 12 projecting inward and shorter than the long ridges 11 are formed on the inner peripheral center side of the main body 5 at a position displaced by 1 ° and 90 °.

When the plug 4 having such a structure is inserted into the drill hole 1a formed in the wall panel 1 by manually pressing it from the steel plate 2 side, the outer protrusions 8 and 8 are inserted into the steel plate 2 when the plug 4 is inserted. When the outer protruding portion 8 moves toward the inside of the steel plate 2, the outer protruding portion 8 is contracted by reducing the diameter of the outer protruding portion 8 through the insertion side slit 7 when the outer protruding portion 8 moves to the inside of the steel plate 2. The inner diameter of the steel plate 2 is increased and the inner diameter of the steel plate 2 is stopped, and at this time, the engagement groove 9 is engaged with the steel plate 2. In this state, the flange plate 6 is substantially in contact with the front surface of the steel plate 2. Becomes In this state, the engagement groove 9 is engaged with the steel plate 2, so that the plug 4 is elastically attached to the wall panel 1 and locked.

From the state shown in FIG. 1, when the screw 15 inserted into the device 16 from the surface side is screwed into the insertion hole H of the plug 4, the long ridge 11 on the inner circumference of the plug 4 is screwed in when the screw 15 is screwed. The screw of the screw 15 is bitten in, and the long ridge 11 is pushed outward, whereby the insertion side slit 7
The engaging groove 9 expands in diameter outwardly through the groove, and the engaging groove portion 9 is firmly embedded in the steel plate 2. Further, the screw is screwed into the short ridge 12, and by further screwing, the tip side of the plug 4 is also expanded to the outside through the tip side slit 10, so that the tip side of the plug 4 is in a shape that is hard to plaster the gypsum board 3. It is firmly fixed.

Therefore, by screwing the screw 15 into the plug 4, the engaging groove portion 9 is firmly inserted into the steel plate 2 and is in a fixed state, and the other end side of the plug 4 is also embedded into the gypsum board 3 so as to be in the conventional manner. An extremely strong mounting structure can be obtained without requiring a reinforcing plate on the back side of the gypsum board. Since the engagement groove 9 of the plug 4 is embedded in the steel plate 2, the plug 4 is not pulled out from the wall panel 1 even when the screw 15 is pulled to the front surface side, and the strength against the pulling force is sufficient. It is secured.

[0011]

INDUSTRIAL APPLICABILITY The present invention is a mounting structure for mounting an instrument on a wall panel made of gypsum boat having a steel plate on its surface through screws, and a plug is inserted into a drill hole formed in the wall panel. Then, the screw is screwed and fixed in the plug, the plug is engaged with the steel plate when the screw is inserted into the drill hole, and the screw is expanded when the screw is screwed into the plug. Since the engagement groove portion into which the steel plate is inserted is formed on the tip side outer periphery, when the plug is inserted into the drill hole, the engagement groove portion on the tip side outer periphery of the plug engages with the steel sheet of the wall panel, and further By screwing the screw into the plug, the engagement groove is firmly embedded in the steel plate, so even if a force is applied to the screw in the pulling direction, the plug remains firmly fixed to the wall panel. Also has mounting strength It has the effect of being Umate improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional configuration diagram showing a state in which a plug is inserted into a drill hole of a wall panel.

FIG. 2 is a cross-sectional configuration diagram showing a state in which a screw is screwed into the plug and an instrument is attached.

FIG. 3 is an external perspective view of a plug.

FIG. 4 is a partially cutaway perspective view of FIG.

FIG. 5 is a front view of the plug.

FIG. 6 is a side view of the plug.

7 is a sectional view taken along line AA in FIG.

8 is a sectional view taken along line BB in FIG.

FIG. 9 is a cross-sectional configuration diagram showing a conventional mounting structure.

FIG. 10 is a cross-sectional configuration diagram showing still another conventional mounting structure.

[Explanation of symbols]

 1 Wall Panel 1a Drill Hole 2 Surface Steel Plate 3 Gypsum Board 4 Plug 5 Body 6 Collar Plate 7 Insert Side Slit 8 Outer Projection 9 Engagement Groove 10 Tip Side Slit 11 Long Protrusion 12 Short Protrusion H Insertion Port

Claims (1)

[Claims] 1. A mounting structure for mounting a device on a wall panel made of gypsum boat having a steel plate on its surface through screws,
A plug is inserted into a drill hole formed in the wall panel, and the screw is screwed and fixed in the plug, and the plug engages with the steel plate when inserted into the drill hole. An attachment structure for an instrument is characterized in that an engaging groove portion is formed on the outer periphery on the tip side to expand the diameter of the screw when the screw is screwed into the plug, and into which the steel plate is inserted.