JPH11303825A - Connection structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a connection tool which can connect by a simple work and whose connection state is not released simply thereafter, when the one member is connected with the other member fixedly and increase a fine sight by camouflaging the use state of this connection tool. SOLUTION: The navel part 13 in a connection tool 10 is formed in a properly thick cylinder shape having an outer diameter nearly matched with the hole 2c for navel insertion and also in a vertical slit shape by plural slits along the axis direction of the navel 13 and the main body part 11 of the connection tool 10 has the hole 11c for pin insertion communicated with the inner periphery side of the navel 13 along the axis direction of the navel 13 and opened to the base end of the main body part, 11 and set so that the tip of the navel 13 by facing the tip 5a of the pin 5 inserted in the hole 11e for pin insertion to the inner periphery side of the navel 13 is expanded and the coming out from the hole 3b for navel insertion of the navel 13 is obstructed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a connection structure when one member such as a frame plate or a wall plate is fixedly connected to another member such as a horizontal plate or a bar member.

[0002]

2. Description of the Related Art For example, some of recent clothes shelves and bookshelves are assembled in a so-called knock-down system and assembled by a user. In many cases, a connection structure using a connection tool other than a conventionally known nail or screw is often used.

That is, for example, in the connecting structure shown in FIG. 6, the connecting member 1 is formed in a round bar shape having an appropriate length, and a slightly reduced distal end on the left side in the figure is one member. It is described that the toner image is fixed to the frame plate 2 by being inserted into a hole 2a formed in the barrel frame 2 in advance.

[0004] The connecting tool 1 fixed to the frame plate 2
In this figure, the connection of the horizontal plate 3 to the frame plate 2 is realized by placing the horizontal plate 3 as the other member on the base end side on the right side in this figure. Board 3
A concave portion 3a is formed on the lower surface of the connector 1 and the base end side of the connector 1 is made to exist in the concave portion 3a to prevent the horizontal plate 3 from shifting in a direction crossing the connector 1 in advance.

[0005] Incidentally, at the time of the above, not shown,
It is assumed that the distal end side of the connecting tool 1 is set as a thread portion, and a female screw member is fixed to the hole 2a of the frame plate 2, and the distal end of the connecting tool 1 set to the above-mentioned screw portion is attached to the female screw member. There is also a proposal to prevent the so-called falling off of the connecting tool 1 from the frame plate 2 by screwing the side.

In any case, according to the above proposal, the horizontal plate 3 is placed on the base end side of the connector 1 fixed to the frame plate 2. 2 has the advantage that the connection of the horizontal plate 3 to the frame plate 2 is easy, but on the other hand, if an external force is applied to the horizontal plate 3 to lift it upward, the horizontal plate 3 There is a problem that the connection state to the frame plate 2 is easily released.

Therefore, the applicant of the present application has proposed a connecting tool 10 having a structure as shown in FIGS. 7 and 8A to 8E in Utility Model Registration No. 2513975.
According to the connecting structure using the connecting member 10, the horizontal plate 3 once connected to the connecting member 10 fixed to the frame plate 2 is advantageous in that the connected state is not easily released. .

[0008] To briefly explain, in this connection structure, the connection tool 10 has a main body 11 and an umbilical part 12 integrally connected to a tip of the main body 11 at the left end in FIG. In a state where the navel 12 is inserted into the navel insertion hole 2b formed in the frame plate 2 and is fixed to the frame plate 2, the main body 11 has an end adjacent to the frame plate 2. The frame plate 2 is fitted in the body portion fitting recess 3b formed in the horizontal plate 3 to be formed.
The connection of the horizontal plate 3 to the horizontal direction is enabled.

That is, first, as shown in FIG. 8 (A), the main body 11 has a slightly rectangular side surface shape as shown in FIG. 8 (A) and a substantially rectangular shape as shown in FIGS. 8 (B) and 8 (C). , The front shape and the rear shape each have a truncated substantially wedge shape with the tip pointed upward, and as shown in (D) and (E), the planar shape and the bottom shape each have a short end at the tip. It is said to have a trapezoidal shape with the long side at the end.

The navel 12 has the appearance of an annular body having an appropriate outer diameter, wall thickness and length.

Next, the main body 11 has a screw insertion hole 11a for allowing the insertion of the screw 4 as a fastening tool at a substantially axial center along the axial direction which is the left-right direction in FIG. A deformed part 11b adjacent to the other part opposing, that is, the inner periphery of the body part fitting concave part 3b formed in the horizontal plate 3 described above.
(See FIGS. 8A and 8B).

By the way, when the deformed portion 11b is adjacent to another portion, that is, when the main body 11 is fitted into the main body fitting concave portion 3b, the main body 11 is fitted with the main body fitting. It is assumed that it is set so as to be able to prevent easily getting out of the concave portion 3b. As shown in the drawing, the concave portion 3b is formed as a concave portion, and the inner peripheral portion of the adjacent main body portion fitting concave portion 3b, It is stated that a corresponding convex portion (not shown) is formed.

The umbilical portion 12 has a screw portion insertion hole 12a at a central portion thereof which communicates with the screw insertion hole 11a and allows the screw portion 4a of the screw 4 to be inserted. It is assumed that the insertion hole 12a opens at the distal end face of the navel 12 which is the left end in FIG. 7 (see FIG. 8B).

Therefore, in this connecting device 10, the umbilical portion 12 is inserted into the umbilical portion insertion hole 2b formed in the frame plate 2, and is inserted into the screw insertion hole 11a formed in the main body portion 11. When the inserted screw 4 is screwed by using a suitable tool, the screw portion 4a of the screw 4 is screwed into the frame plate 2 through the screw portion insertion hole 12a. It will be fixedly fixed.

The connecting member 1 fixed to the frame plate 2
The horizontal plate 3 can be connected to the frame plate 2 by fitting the main body portion 11 at 0 into the main body portion fitting concave portion 3b formed in the horizontal plate 3 by pushing it.

As a result, according to the connecting structure having the connecting member 10, the horizontal plate 3 can be connected to the frame plate 2 by a simple operation, and the horizontal plate 3 crosses the connecting member 10 later. In the direction of extension of the horizontal plate 3 from the frame plate 2, and also prevent the horizontal plate 3 from floating. There is an advantage that the connection state of the horizontal plate 3 with respect to is permanently maintained and cannot be easily released.

However, in the case of the above-mentioned connecting structure, that is, in the case of using the above-mentioned connecting tool 10, it is pointed out that despite the above-mentioned advantages, the following inconveniences occur. Could be done.

That is, first, in order to fix the connecting member 10 to the frame plate 2, it is necessary to screw the screw portion 4 a of the screw 4 into the frame plate 2. Is required to have a sufficient thickness for screwing the screw portion 4a.

As a result, the frame plate 2 is set so as to have an unnecessarily large thickness in view of strength.
When a so-called kit provided in a knock-down system is bulky, the weight of the kit generally tends to increase.

Next, when the connecting member 10 is fixed to the frame plate 2, the navel 12 is inserted into the navel insertion hole 2b formed in the frame plate 2, so that the navel 12 and the navel are fixed. In the case where the part insertion hole 2b is formed in a so-called round shape without employing the rotation preventing structure, it is necessary to prevent the umbilical part 12 from rotating by the umbilicus part insertion hole 2b.

Therefore, when the screw 4 is screwed, a sufficient operating force is required to prevent the rotation of the navel 12 in the navel insertion hole 2b. In the meantime, there is a tendency that the material of the frame plate 2 is selected so that the screw 4 does not work on the frame plate 2 so as to prevent the screw 4 from rotating.

As a result, in many cases, a material having a mechanical strength sufficient to prevent the screw 4 from rotating idly is selected. This results in higher costs and, as a result, hinders reduction in product costs.

On the other hand, in the above-described connecting device 10, the main body 11 of the connecting device 10 fixed to the frame plate 2 is
The horizontal plate 3 is connected to the frame plate 2 by being fitted into the main body fitting concave portion 3b formed at this time, but at this time, the bottom surface of the main body portion 11 is exposed on the lower surface of the horizontal plate 3. Will do.

Since the above-mentioned connecting member 10 will be formed of a synthetic resin material in many cases, and the color at that time will be milky white, brown, or black, it will be difficult to connect the connecting member 10 horizontally. When the board 3 is formed of a wooden system or formed so as to have a wooden pattern, it is easy to give an unnatural appearance.

Therefore, it can be proposed to attach sheets formed to have a woody surface pattern to the bottom surface of the main body 11 as a decorative material. In this case, the sheets are applied to the sheets. It is feared that the decorative material is peeled off due to the deterioration of the adhesive, and that dirt is caused due to the peeling off of the decorative material. As a result, it must be said that this method cannot be adopted.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to simply connect one member to another member by a simple operation. Of course, it will be possible to use a connector that is optimal to prevent the connection state from being easily released afterwards, and to camouflage the situation using this connector to enhance the appearance It is an object of the present invention to provide a connection structure which is capable of reducing the manufacturing cost of a kit provided by a knockdown system and which is optimal for expecting an improvement in versatility.

[0027]

Means for Solving the Problems To achieve the above object, the structure of the connecting structure according to the present invention is basically similar to the structure in which an umbilical portion integrally formed integrally with the tip of the main body is formed on one member. The body is inserted into the umbilicus insertion hole and fixed to one member, and the main body is fitted in a body fitting recess formed in the other member having an end adjacent to the one member, so that the other body is fitted to the other member. In the connecting structure having a connecting tool for connecting members, the umbilical part of the connecting tool is formed into a suitably thick cylindrical shape having an outer diameter substantially matching the umbilicus insertion hole, and the umbilicus is The connector is vertically divided by a plurality of split grooves along the axial direction, and the main body of the connecting tool communicates with the inner peripheral side of the navel while being along the axial direction of the navel, and is used for pin insertion opening at the base end of the main body. The tip of the pin inserted into this pin insertion hole is And expanding the tip of the umbilicus by causing His presence on the inner peripheral side parts to become configured to prevent the escape from the hole for the umbilical insertion of the umbilicus.

In the above configuration, more specifically, the navel has a retaining portion on the outer periphery, and the tip of the pin is located on the inner peripheral side of the navel and the tip of the navel is It is assumed that, when the umbilical portion is expanded, the outer periphery of the navel is set to be in close contact with the inner periphery of the umbilicus insertion hole under the arrangement of the retaining portion.

Further, it is assumed that the distal end of the pin is formed as a thread, and is set so as to be protruded and retracted on the inner peripheral side of the navel when the proximal end of the pin is rotated. Further, it is assumed that a decorative plate for concealing the bottom is set to be detachably connected to the bottom surface of the main body.

On the other hand, it is preferable that the connecting member has an external appearance of the main body, in which a side shape is slightly rectangular and substantially rectangular, and a front shape and a rear shape are truncated and substantially wedge-shaped, each having a pointed end facing upward. In addition, it is assumed that the planar shape and the bottom surface each have a trapezoidal shape with the short end at the front end and the long side at the base end.

The main body has a deformed portion adjacent to the other portion facing the side surface, and the deformed portion is formed when it is adjacent to the other portion, that is, when the main body is formed on the other member. Is set so as to permanently prevent the main body portion from coming out of the main body portion fitting concave portion when the main body portion is fitted into the main body fitting concave portion.

Therefore, in this connecting device, the umbilicus is inserted into the screw insertion hole formed in the main body under the condition that the umbilicus is inserted through the umbilicus insertion hole formed in the frame plate as one member. By allowing the tip of the inserted pin to be present on the inner peripheral side of the umbilicus, the tip of the umbilicus can be expanded to prevent the umbilicus from coming out of the umbilicus insertion hole. The connecting member can be fixedly fixed to one member.

At this time, since the navel is divided vertically by a plurality of split grooves, the navel is easily expanded by the presence of the tip of the pin on the inner peripheral side and has a retaining portion on the outer periphery. In conjunction with this, the rotation through the umbilicus insertion hole is prevented from coming out of the umbilicus insertion hole while being prevented from rotating.

Then, the main body portion of the connecting member fixed to the one member is fitted into the horizontal plate serving as the other member by pushing it into the concave portion for fitting the main body portion, thereby fixing the other member to the one member. Can be permanently and permanently connected.

At this time, the concave portion for fitting the main body portion is formed in a shape corresponding to the main body portion, and the main body portion, that is, the connecting member is made of a relatively hard plastic such as polypropylene. Extremely large external force action is not required for fitting into the main body fitting recess.

Further, since the main body portion once fitted into the main body fitting concave portion has a deformable portion on the side surface which prevents the main body portion from being detached from the main body fitting concave portion, ordinary external force is applied. Within the scope of action, it is impossible to separate them, that is,
This will allow a fixed connection between the two.

At this time, it is assumed that the main body portion has a split groove on the tip end side, and when an obstacle is set to be present in the split groove, the point of the obstacle is present in the split groove. The side tends to expand outwardly, or at least the pointed end side is prevented from contracting inward, so that the main body is permanently prevented from coming out of the main body fitting recess. Will be.

When removing the above obstacle,
Of course, it is possible to eliminate the tendency of the tip end to expand, and it is also possible to reduce the diameter of the tip end, so that the main body can be pulled out of the main body fitting recess, and the horizontal plate can be removed. Can be separated from the frame plate.

In the case where the obstacle is a pin-shaped body and this pin-shaped body is connected to a decorative plate for concealing the bottom surface of the main body, for example, the pin-shaped body is attached to the main body. By being present in the split groove of the formation, the connection that enables the decorative plate to be attached to the main body is realized, and the inward diameter reduction at the pointed end side of the main body is prevented or the outer side is prevented. The expansion will be embodied.

[0040]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiment. As shown in FIGS. 1 and 2A to 2E, the present invention is used in a connection structure according to the present invention. The connecting tool 10 and its use mode are basically set in the same manner as in the case of the above-described conventional connecting tool 10.

Therefore, in the connection structure according to the present invention, the same components as those of the above-described conventional example are denoted by the same reference numerals in the drawings, and detailed description thereof will be omitted unless necessary. The description will be omitted, focusing on the features of the present invention.

That is, first, in the connecting tool 10 used in the connecting structure according to the present invention, an umbilical portion 13 continuously provided at the left end of the main body 11 in FIG. A plurality of split grooves 13a are formed in a suitably thick cylindrical shape having an outer diameter substantially matching the inner diameter of the umbilicus insertion hole 2c formed of a hole, and extend along the axial direction which is the left-right direction in FIG. (See FIGS. 2A, 2D, and 2E).

Next, the main body 11 communicates with the inner peripheral side of the navel 13 while extending along the axial direction of the navel 13.
1 is a pin insertion hole 1 which is opened at the base end which is the right end in FIG.
As shown in FIG. 3, the distal end of the pin 5 inserted into the pin insertion hole 11c is located on the inner peripheral side of the navel 13, so that the distal end of the navel 13 is expanded. Umbilical part 13
Is prevented from coming out of the navel insertion hole 2c.

By the way, the connecting tool 10 is often
It is made of a relatively hard plastic, for example, polypropylene. Alternatively, it may be made of aluminum or the like, and the molding may be performed by any method such as cutting other than integral molding using a so-called mold. May be selected.

On the other hand, regarding the pin 5, this pin 5
As shown in FIG. 1, the distal end portion is set to the thread portion 5a, and when the base end is rotated by using an appropriate tool such as a Phillips screwdriver, the inner peripheral side of the navel 13 is It is said to be set to appear in the haunt.

The umbilicus 13 where the thread 5a is present
The inner peripheral side has a smaller diameter on the side closer to the distal end which is the left half side in FIG. 1 than the side closer to the proximal end which is the right half side in FIG. 1, that is, smaller than the outer diameter of the thread portion 5a. Is set.

The split groove 13a is formed so as to extend over the entire length of the navel portion 13, that is, both the normal diameter portion and the small diameter portion. .

Therefore, the thread 5a of the pin 5 is
3, the tip of the navel 13 is expanded as shown in FIG. 3, so that the navel 13 is vertically split by the plurality of split grooves 13a. Therefore, the extension of the tip can be easily realized.

At this time, although not shown, if a meshing portion such as a mountain-shaped rib with which the screw portion 5a meshes is formed on the inner peripheral surface near the base end of the navel portion 13, the screw portion 5a is formed. It is advantageous in that the screwing and unscrewing of the can be performed easily and reliably.

In the case where the navel 13 has a retaining portion 13b on the outer periphery as in the illustrated embodiment, even if the above-mentioned widening of the tip is not sufficient,
The outer periphery of the navel 13 is closely attached to the inner periphery of the navel insertion hole 2c under the disposition of the retaining portion 13b.

Incidentally, the retaining portion 13b is set to have a so-called saw-tooth shape having a continuous outer shape consisting of angular wave-like projections as shown in the drawing, but as long as it constitutes a so-called retaining structure. It goes without saying that, for example, an arbitrary mode such as a continuous bar-shaped projection may be selected.

As a result, in the umbilical portion 13, when the pin 5 is inserted into the inner peripheral side, a plurality of vertically divided tips bite into the inner peripheral portion of the umbilicus insertion hole 2 c. Along with the diameter being enlarged and having the retaining portion 13b on the outer periphery, the rotation from the umbilicus insertion hole 2c is prevented from coming out of the umbilicus insertion hole 2c while being prevented from rotating. Will be blocked.

The deformed portion 11 formed on the main body 11
b, when this is adjacent to another part, that is, when the main body 11 is fitted into the main body fitting concave portion 3b,
It suffices if the configuration is such that the body portion 11 is permanently prevented from coming out of the body portion fitting recess 3b.

The deformed portion 11b is, for example, a concave portion formed on the side surface of the main body 11 as shown in FIG. It is assumed that the fitting concave portion 3b has a correspondingly shaped convex portion (not shown) on the inner periphery.

The arrangement positions of the concave portion and the convex portion may be set upside down, and although not shown, the deformed portion 11b may be formed by, for example, a continuous bar-like projection or a corner instead of the concave portion. It may be composed of wavy small projections.

In the case where the deformed portion is a continuous bar-shaped projection or a small angular wave-shaped projection, the above-mentioned projection is not formed in the body portion fitting recess 3b formed on the horizontal plate 3. This is advantageous in that it can be completed.

The connecting member 10 formed as described above is used to connect the horizontal plate 3 to the frame plate 2. Before using the connecting member 10, the frame plate 2 and the horizontal plate are used. 3
Is subjected to predetermined processing.

That is, the navel insertion hole 2 c is formed in the frame plate 2, and the body portion fitting recess 3 b is formed in the horizontal plate 3.

In the case where the horizontal plate 3 is a shelf such as a book shelf, the main body fitting recess 3b is provided at four locations on the horizontal plate 3, that is, front, rear, left and right.
Although not shown, when connecting the end portion of the bar member forming the handrail in the stair railing structure to an elevation such as a wall, the number of such members is used, such as being provided at one place on the lower surface of the end portion of the bar member. Of course, it depends on the situation.

Preferably, when the main body 11 of the connector 10 is fitted into the main body fitting concave portion 3b, the bottom surface of the main body portion 11 is It is formed so as to be exposed to the lower surface of the horizontal plate 3 while being at the same level as the lower surface.

In order to connect the horizontal plate 3 to the frame plate 2 on the premise as described above, first, the connecting tool 10 is fixed to the frame plate 2.

That is, the navel 13 of the connector 10 is inserted into the navel insertion hole 2c formed in the frame plate 2, and in this state, the pin is inserted into the pin insertion hole 11c formed in the main body 11. 5 is rotated by using an appropriate tool so that the tip of the pin 5 is located on the inner peripheral side of the navel 13.

At this time, in the connecting tool 10,
Of course, care is taken that the tip side is upward.

When the distal end of the pin 5 is present on the inner peripheral side of the navel 13, the distal end of the navel 13 is expanded. Therefore, as described above, the outer periphery of the distal end of the navel 13 is formed. Are pressed into the frame plate 2 in such a manner as to bite into the inner periphery of the umbilicus insertion hole 2c formed in the frame plate 2, and the fixing of the connecting member 10 to the frame plate 2 is realized.

In the above state, the horizontal plate 3 located above the connecting member 10 is lowered in the direction indicated by the arrow in FIG. The main body 11 of the connecting tool 10 is fitted to 3b.

At this time, since the recess 3b for fitting the main body portion is set so as to match the outer shape of the body portion 11, an external force is required when the main body portion 11 is fitted into the recess 3b for fitting the main body portion. That is, when the horizontal plate 3 is made of, for example, wood, the coupling device 10 is relatively easily, that is, extremely extremely combined with the fact that the connecting member 10 is made of polypropylene, which is a relatively hard plastic. Both can be connected without requiring a large external force action.

Then, the main body portion fitting recess 3 of the main body portion 11 is formed.
b, the main body portion 11 is fitted into the main body portion concave portion 3b.
Since the deformed portion 11b that functions between the two is provided, an integral and permanent connection between the two is realized.

As described above, the connection of the horizontal plate 3 to the frame plate 2 can be realized by using the connecting tool 10, but in order to make this connection state more reliable, in the illustrated embodiment, The following considerations are taken.

That is, in the connector 10, as shown in FIG. 2, it is assumed that the main body 11 has a split groove 11d at the pointed end thereof. The decorative plate 6 as shown is connected detachably.

To explain briefly, as shown in FIG. 2C, the split grooves 11d formed on the pointed end side of the main body 11 are arranged so as to form a pair at right and left sides and have a cross-sectional shape of L. It is set to have a character shape.

The split groove 11d has a so-called lower end that opens to the side surface of the main body 11 (see FIG. 2B) and an upper end that is stopped near the upper end of the main body 11. (See FIG. 2C).

The main body 11 has a pair of small-diameter holes 11e whose base end is open at the bottom surface and whose upper end communicates with the above-mentioned split groove 11d.
Are set so as to enable connection of the decorative plate 6 described later.

Therefore, in the connecting device 10, while the pointed end of the main body 11 is in a state in which it can be opened outwardly, the diameter of the main body 11 can be reduced inward. When fitting the main body 11 into the main body fitting concave portion 3b, the so-called fitting resistance is reduced and the operability when the main body portion 11 is fitted into the main body fitting concave portion 3b is reduced by fitting the main body 11 into the main body fitting concave portion 3b. Will be improved.

When an obstacle, for example, a pin-shaped body is present in the split groove 11d of the main body 11, the tip end of the connecting tool 10 is forcibly forced by the presence of the pin-shaped body. Or the diameter of the main body 11 is prevented from coming out from the concave part 3b for fitting the main body part, and at least the inner diameter of the main body part 11 is prevented from being reduced. Will be.

On the other hand, the decorative plate 6 is provided for concealing the bottom surface of the main body 11, and in the drawing,
A decorative lid portion 6a formed in a flat plate shape;
And a pair of leg portions 6b protruding from the so-called back surface.

The decorative plate 6 is often
As in the case of the above-described connecting tool 10, it will be formed of a relatively hard plastic such as polypropylene, and in this case, for example, a color that can embody a woody texture is selected and formed. Will.

The decorative cover 6a is composed of the decorative plate 6 and the body 1
When connected to 1, the bottom surface of the main body portion 11 is set so as to be able to completely cover the bottom surface (see the broken line diagram in FIG. 4A). It is set so as to have a sufficient thickness and strength for realization.

As shown in FIG. 5, the leg portion 6b realizes the connection of the decorative plate 6 to the main body portion 11 and, at the same time, makes the pin-shaped body existing in the split groove 11d formed in the main body portion 11 as described above. It has an outer diameter that allows insertion into the small-diameter hole 11e formed in the main body 11, and is set so that its tip has a length that is present in the split groove 11d. It is going to be.

Therefore, in the decorative board 6, the leg 6b forming the pin-like body is formed in the split groove 1 formed in the main body 11.
By being present at 1d, it is possible to connect the decorative panel 6 to the main body 11 and to prevent the tip of the main body 11 from contracting inwardly or to realize outward expansion and bulging. As a result, the main body 11 fitted in the main body fitting concave portion 3b is permanently prevented from falling out of the main body fitting concave portion 3b.

When the decorative plate 6 is to be removed from the bottom of the main body 11, the leg 6b, which is a pin-shaped body, has a split groove 11d.
Is removed from the main body 11, not only is the forcible end being forced to expand, but also the tip end is allowed to be reduced in diameter, and the main body 11 is fitted with the main body fitting recess 3.
Thus, the horizontal plate 3 can be separated from the frame plate 2.

The above description has been made assuming that the connecting member 10 according to the present invention is used for connecting the horizontal plate 3 which is in contact with the frame plate 2 forming the upright surface in an orthogonal state from the horizontal direction. In view of the intent of the present invention, it is needless to say that the present invention can be used in a so-called oblique connection in which one end of a handrail is connected to a wall when a staircase handrail structure is provided.

[0082]

As described above, according to the present invention, when the connecting member is fixed to the one member, the tip of the pin is provided on the inner peripheral side of the navel inserted into the navel insertion hole formed in the one member. The thickness of the one member is increased more than necessary because the tip of the umbilicus can be expanded by the presence of the part and the umbilicus can be fixed to one member in a state where the umbilicus is prevented from falling out of the umbilicus insertion hole. Therefore, for example, it is possible to prevent a so-called kit when provided in a knock-down system from being bulky, and to reduce the total weight of the kit.

In the above case, when the umbilical portion of the connecting tool has a retaining portion on the outer periphery, the umbilical portion may be provided with the inner peripheral portion of the umbilicus insertion hole under the disposition of the retaining portion. Will be pressed under circumstances that dig into
The material which has the mechanical strength of the umbilicus, that is, the connection tool is securely fixed to one member, and has an unnecessarily large mechanical strength, that is, a material which is generally expensive in terms of cost Need not be selected, and an increase in the processing cost can be avoided. As a result, the cost of the product can be reduced.

Further, since the distal end portion of the pin is set to the thread portion, the distal end portion can be reliably protruded and retracted on the inner peripheral side of the navel by rotating the base end of the pin. Also, in the connector, the decorative plate for concealing the decorative plate is detachably connected to the bottom surface of the main body, so that the main body is fitted to the main body fitting recess formed in the other member, that is,
It is possible to conceal the state where the coupling tool is fitted,
This makes it possible to avoid giving the viewer a strange feeling in appearance in advance.

Further, in the case where the main body portion of the connecting tool has a split groove and is set so as to be able to reduce the diameter and expand the diameter, the presence of an obstacle in the split groove depends on the presence of an obstacle. Thus, the diameter reduction deformation of the main body can be prevented, so that the connector, that is, the main body, coming out of the main body fitting concave portion is permanently prevented.

At this time, if it is assumed that the obstacle present in the split groove is formed of a leg formed in a pin-like body and connected to the back surface of the decorative lid constituting the decorative plate, the leg Not only allows the decorative board to be connected to the main body part, but also prevents the diameter reduction in the main body part, or can realize the forced expansion, and the main body part can be realized. It is possible to prevent the main body fitted into the fitting recess from coming out of the body fitting recess.

As a result, according to the present invention, when the other member is fixedly connected to one member, not only the connection can be performed with a simple operation but also the connection state can be easily changed thereafter. Use the best fittings to prevent it from being released, and also to camouflage the situation using this fitting so that it can enhance the aesthetics. There is an advantage that the manufacturing cost can be reduced and the versatility is optimally expected.

[Brief description of the drawings]

FIG. 1 is a view showing one embodiment of the present invention together with one member, the other member, a connecting member, and a pin.

FIG. 2A is an elevation view of the coupler of FIG. 1; (B) It is a front view of the connection tool of FIG. (C) It is a rear view of the connection tool of FIG. (D) It is a top view of the connection tool of FIG. (E) It is a bottom view of the connection tool of FIG.

FIG. 3 is a view showing a state in which the connecting tool shown in FIG. 1 is connected to one member by using a pin.

FIG. 4A is a plan view of a decorative plate. (B) It is an elevational view of a decorative board.

FIG. 5 is a view showing a state in which a decorative plate is connected to the connecting tool of FIG. 1 from the back side of the connecting tool.

FIG. 6 is a diagram showing an example of a conventional connection structure, similarly to FIG.

FIG. 7 is a view showing another example of the conventional connection structure in the same manner as FIG.

FIG. 8A is an elevation view of the coupler of FIG. 7; (B) It is a front view of the connection tool of FIG. (C) It is a rear view of the connection tool of FIG. (D) It is a top view of the connection tool of FIG. (E) It is a bottom view of the connection tool of FIG.

[Explanation of symbols]

 2 Frame plate as one member 2c Hole for insertion of umbilicus part 3 Cross plate as the other member 3b Concavity for fitting main body 5 Pin 5a Thread as tip 6 Decorative plate 6a Decorative lid 6b Leg 10 Connector 11 Main body 11b Deformation part 11c Pin insertion hole 11d Split groove 11e Small diameter hole 13 Navel 13a Split groove 13b Retaining part

Claims (4)

[Claims] An umbilical part integrally connected to a tip of a main body is inserted into an umbilicus insertion hole formed in one member and fixed to the one member, and the main body has an end with respect to the one member. In a connecting structure having a connecting member that is fitted into a main body fitting concave portion formed on the other member to be adjacent to enable the other member to be connected to the one member, an umbilical portion of the connecting device is connected to the umbilical portion. It is formed in a suitably thick cylindrical shape having an outer diameter substantially matching the passage hole, and is vertically divided by a plurality of split grooves along the axial direction of the umbilicus. It has a pin insertion hole that communicates with the inner peripheral side of the navel while opening along the base, and has a pin insertion hole that opens at the base end of the main body. The distal end of the pin inserted into this pin insertion hole is located on the inner peripheral side of the navel. Presence of the umbilicus expands by being present, preventing the umbilicus from getting out of the umbilicus insertion hole Connecting structure characterized by being set so that 2. The umbilicus has a retaining portion on the outer periphery,
When the tip of the pin is located on the inner circumference of the navel and the tip of the navel is expanded, the outer circumference of the navel is closely attached to the inner circumference of the navel insertion hole under the arrangement of the retaining portion. 2. The connecting structure according to claim 1, wherein the connecting structure is set to 3. The pin according to claim 1, wherein the distal end of the pin is formed as a thread, so that when the base end of the pin is rotated, the pin protrudes and retracts on the inner peripheral side of the navel. Connection structure 4. The connecting structure according to claim 1, wherein a decorative plate for concealing the decorative plate is detachably connected to the bottom surface of the main body.