JP2023046962A - Cupboard with flap door and metal fitting for flap door - Google Patents

Abstract

To provide a metal fitting for a flap door capable of being attached/detached without using a tool.SOLUTION: The metal fitting for the flap door used for storing a door body of the flap door in a storage part of a cabinet comprises: a main body part having a sliding part that moves a portion of the door body in a slidable manner; and an insertion shaft integrated with the main body part, which is inserted in one insertion hole pre-formed on an inner wall surface of a side plate forming the storage part. The main body part includes: an engaging recess provided on a tip part of the main body part, which is fixed by engaging with a head part of an engaging pin inserted in another insertion hole pre-formed on the inner wall surface of the side plate; and a protrusion that latches the door body in a freely turnable manner via a hook provided on the door body.SELECTED DRAWING: Figure 8

Description

TECHNICAL FIELD The present invention relates to a storage cupboard with a flap door that opens and closes a front opening of a storage part for furniture, and more particularly to a storage cupboard with a flap door and a metal fitting for the flap door having a structure in which the door is stored in the internal space of the storage part when opened. .

Conventionally, a flap door consists of a plate-shaped door body that closes a storage portion of a cabinet for furniture, a pair of sliders fixed to both ends of the inside of the door body, and a pair of sliders that are fixed at horizontal positions on both side wall surfaces of the storage portion. and a pair of slide rails.

Since the sliders and slide rails can all be molded from synthetic resin, they can be manufactured very easily and at low cost. In addition, with this flap door, even a general user can very easily assemble the door body in a storage space such as a cabinet by simply fixing the slide rail and the slider at predetermined positions with fixing screws. .

Specifically, the slide rail is horizontally arranged with the rail sliding part facing upward against the upper part of both side walls of the storage part of the cabinet, and is fixed by inserting fixing screws into fixing holes on both front and rear sides. (See, for example, Patent Document 1.).

JP 2018-048544 A

By the way, in the flap door described in Patent Document 1, it is necessary to open the fixing holes in order to insert the fixing screws into the fixing holes in the side wall surfaces of the storage portion of the cabinet, and the fixing holes remain when the slide rail is removed. There was a problem that it was closed and looked bad.

In addition, since the slide rails must be attached to both side wall surfaces of the housing portion of the cabinet with fixing screws, tools are required, and it is not always easy for general users to attach the slide rails horizontally.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a storage cupboard with a flap door and a metal fitting for the flap door which can be easily attached and removed without requiring tools.

In order to solve this problem, the storage closet with a flap door of the present invention includes a cabinet, a plate-shaped door body rotatably attached to the storage portion of the cabinet for opening and closing the storage portion of the cabinet, and the door. It is inserted into one insertion hole previously formed in an inner wall surface of a flap door metal fitting for rotatably supporting the main body and a side plate forming the storage portion of the cabinet, and is engaged with the flap door metal fitting. an engaging pin, wherein the flap door fitting comprises: a body portion having a sliding portion for moving the door body in a slidable state when the door body is stored in the storage portion; and the body portion. and an insertion shaft provided integrally with the side plate to be inserted into another insertion hole formed in advance in the inner wall surface of the side plate; an engaging recess for fixing the position of the body with respect to the inner wall surface by engaging with the head portion of the engaging pin while being rotated via the shaft; and a protrusion that rotatably hooks the door body via a hook provided on the door body.

In the storage cupboard with a flap door, it is preferable that the engaging recess and the projection are integrated so as to be adjacent to each other in the axial direction of the insertion shaft.

In the storage cupboard with a flap door, it is preferable that the main body has an arm that is integrated with the insertion shaft and rotates via the insertion shaft.

In the storage cupboard with a flap door, it is preferable that the insertion shaft has a cylindrical shape with a through hole, and a metal reinforcing pin is inserted into the through hole.

In the storage cupboard with a flap door, the door body has the hook hooked to the protrusion on the back side, and the body part contacts the hook when the door body is stored in the storage part. It is preferable to have a stopper pin for

Further, in the present invention, there is provided a flap door metal fitting used for storing a door body of a flap door in a storage part of a cabinet, wherein the sliding part moves a part of the door body in a slidable state. and an insertion shaft provided integrally with the main body and inserted into one insertion hole previously formed in an inner wall surface of a side plate forming the storage, wherein the main body includes an engaging recess provided at the tip of the main body portion and fixed by engaging with a head portion of an engaging pin inserted into another insertion hole previously formed in the inner wall surface of the side plate; and the door main body. and a protrusion that rotatably hooks the door body via a hook provided in the door body.

ADVANTAGE OF THE INVENTION According to this invention, the storage closet with a flap door which can be easily attached and detached without a tool, and a metal fitting for flap doors can be implement|achieved.

Fig. 2 is a perspective view showing a state in which the flap door is closed in the storage cupboard with the flap door according to the present embodiment; Fig. 10 is a perspective view showing a state in which the flap door is rotated in the storage cupboard with the flap door according to the present embodiment; Fig. 10 is a perspective view showing a state in which the flap door is accommodated in the storage cupboard with the flap door according to the present embodiment; FIG. 4 is a perspective view showing the configuration of the flap door in the embodiment; FIG. 4 is a perspective view showing a configuration of hooks attached to the flap door in the present embodiment; FIG. 4 is a perspective view showing the configuration of an engagement pin for fixing the flap door in the embodiment; Fig. 10 is a side view showing a state in which the flap door according to the present embodiment is stored; It is a perspective view which shows the structure of the front side of the metal fittings for flap doors in this Embodiment. It is a perspective view which shows the structure of the back side of the metal fittings for flap doors in this Embodiment. FIG. 4 is a perspective view showing an engagement state between an engagement recess of the flap door fitting and an engagement pin in the present embodiment. FIG. 10 is a side view for explaining a state in which the hook and the protrusion of the flap door metal fitting are engaged with each other when the flap door is closed in the present embodiment; FIG. 10 is a side view for explaining a state in which the hook and the protrusion of the flap door metal fitting are engaged with each other while the flap door in the present embodiment is rotating; FIG. 4 is a perspective view for explaining a mounting method until the flap door metal fitting according to the present embodiment is engaged with an engaging pin and fixed.

(1) Outline of Embodiment First, an outline of a representative embodiment of the invention disclosed in the present application will be described. In the following description, as an example, reference numerals on the drawings corresponding to constituent elements of the invention are described with parentheses.

[1] A storage cupboard with a flap door (1) according to a representative embodiment of the present invention includes a cabinet (2) and a storage section (20a) of the cabinet (2) for opening and closing the storage section (20a). ), a plate-shaped door body (40) rotatably attached in the ), flap door metal fittings (7f, 7g) for rotatably supporting the door body (40), and a storage portion ( an engaging pin (5) inserted into one insertion hole (22f) previously formed in the inner wall surface (21Ln) of the side plate (21L) forming the side plate (21L) forming the side plate (20a) and engaged with the flap door fitting (7f); The flap door fitting (7f) includes a sliding portion (71a) for moving the door body (40) in a slidable state when the door body (40) is stored in the storage portion (20a). and an insertion shaft (77) provided integrally with the body portion (71) and inserted into another insertion hole (22f) previously formed in the inner wall surface (21Ln) of the side plate (21L). and the head portion of the engaging pin (5) provided at the tip of the main body (71), and the main body (71) is rotated with respect to the inner wall surface (21Ln) via the insertion shaft (77). (51b) to engage with the door main body (40) to fix the position of the main body (71) with respect to the inner wall surface (21Ln); ) for rotatably hooking the door body (40) via a hook (43) provided on the door body (43).

[2] In the storage cupboard with flap door (1), the engagement recess (72) and the protrusion (73) are integrated so as to be adjacent to each other in the axial direction of the insertion shaft (77).

[3] In the storage cupboard with flap door (1), the main body (71) is integrated with the insertion shaft (77) and has an arm (75) that rotates via the insertion shaft (77).

[4] In the storage cupboard with flap door (1), the insertion shaft (77) has a cylindrical shape with a through hole (77h), and a metal reinforcing pin (79) is inserted into the through hole (77h). It is

[5] In the storage cupboard with flap door (1), the door body (40) has a hook (43) hooked on the rear surface (40b) with the projection (73), and the body (71) is It has a stopper pin (78) that contacts the hook (43) when the door body (40) is stored in the storage portion (20a).

[6] In a representative embodiment of the present invention, a flap door fitting (7f ), comprising: a main body (71) having a sliding portion (71a) for slidably moving a part of the door main body (40); an insertion shaft (77) inserted into one insertion hole (22f) pre-formed in the inner wall surface (21Ln) of the side plate (21L) forming the side plate (20a); The head (51b) of the engagement pin (5) provided at the tip of the main body (71) and inserted into another insertion hole (22f) previously formed in the inner wall surface (21Ln) of the side plate (21L) and a protrusion (73) for rotatably hooking the door body (40) via a hook (43) provided on the door body (40). ) and

(2) Present Embodiment Hereinafter, a configuration of a storage cupboard with a flap door according to the present embodiment will be described in detail with reference to FIGS. 1 to 13. FIG. FIG. 1 is a perspective view showing a state in which the flap door is closed in the storage cupboard with the flap door according to the present embodiment. FIG. 2 is a perspective view showing a state in which the flap door is rotated in the storage cupboard with the flap door according to the present embodiment. FIG. 3 is a perspective view showing a state in which the flap door is accommodated in the storage cupboard with the flap door according to the present embodiment. FIG. 4 is a perspective view showing the configuration of the flap door in this embodiment. FIG. 5 is a perspective view showing the structure of the hook attached to the flap door in this embodiment. FIG. 6 is a perspective view showing the construction of an engagement pin for fixing the flap door in this embodiment. FIG. 7 is a side view showing a state in which the flap door according to this embodiment is stored. FIG. 8 is a perspective view showing the configuration of the front side of the flap door fitting according to the present embodiment. FIG. 9 is a perspective view showing the configuration of the back side of the flap door fitting according to the present embodiment. FIG. 10 is a perspective view showing an engagement state between the engagement recess of the flap door fitting and the engagement pin in the present embodiment. FIG. 11 is a side view for explaining a state in which the hook and the protrusion of the flap door metal fitting are engaged with each other when the flap door is closed in the present embodiment. FIG. 12 is a side view for explaining a state in which the hook and the protrusion of the flap door metal fitting are engaged with each other while the flap door is rotating according to the present embodiment. FIG. 13 is a perspective view for explaining the mounting method until the flap door metal fitting according to the present embodiment is engaged with the engaging pin and fixed.

For convenience of explanation, when the storage cupboard with flap door 1 is placed, the direction of arrow a, which is lifted when opening the flap door 4, is the upper direction, and the direction of arrow b, which is lowered when the flap door 4 is closed. downward or downward. When the flap door 4 of the storage cupboard with flap door 1 is viewed from the front, the arrow c direction is the left or left direction, and the arrow d direction when the flap door 4 is viewed from the front is the right or right direction. Furthermore, when the flap door 4 of the storage cupboard with flap door 1 is viewed from the front, the arrow e direction is the front side or front direction, and the arrow f direction when the flap door 4 is viewed from the front is the depth side or rear direction. do. However, this upward and downward direction (hereinafter referred to as "vertical direction"), leftward or rightward direction (hereinafter referred to as "horizontal direction"), forward and backward direction (hereinafter referred to as "forward and backward direction") ) is used for convenience of explanation, and can be defined as a different direction depending on how the storage cupboard 1 with flap door is used.

<Storage cupboard with flap door>
As shown in FIGS. 1 to 3, the storage cupboard 1 with a flap door in this embodiment is, for example, a so-called color box. A storage cupboard with flap door 1 has a cabinet 2, a shelf plate 3, a flap door 4, an engagement pin 5 (FIGS. 6 and 13), and flap door fittings 7 (7f, 7g).

The cabinet 2 is formed by side plates 21L and 21R facing each other in the horizontal direction (arrow cd direction), and a top plate 21U and a bottom plate 21D facing each other in the vertical direction (arrow ab direction).

The cabinet 2 has a vertically long storage space 20 formed by side plates 21L and 21R, a top plate 21U and a bottom plate 21D. The cabinet 2 has a plurality of storage sections 20 a to 20 e in which a storage space 20 is partitioned by a plurality of (in this case, four) shelf boards 3 .

In the storage cupboard with flap door 1, the flap door 4 is attached to each of the storage sections 20a to 20e partitioned by the shelf plate 3. is attached, and the other flap door 4 is omitted.

The inner wall surfaces 21Ln and 21Rn of the two side plates 21L and 21R arranged parallel to each other in the cabinet 2 are provided along the vertical direction with respect to the front side (direction of arrow e) and the rear side (direction of arrow f) of the storage space 20. A plurality of dowel holes (also referred to as "mortise holes") 22f, 22g are formed as insertion holes for the engagement pins 5, which will be described later.

Here, when the flap door 4 is viewed from the front, there are a plurality of dowel holes 22f on the front side of the storage space 20 (direction of arrow e), and there are a plurality of dowel holes 22f on the back side of the storage space 20 (direction of arrow f). are a plurality of dowel holes 22g.

The shelf plate 3 is placed on dowels (not shown) inserted into a total of four dowel holes 22f and 22g of the same height on the inner wall surfaces 21Ln and 21Rn of the two side plates 21L and 21R facing each other. .

Flap door fittings 7f and 7g are attached to the inner wall surface 21Ln of the side plate 21L through dowel holes 22f and 22g. Flap door metal fittings 7f and 7g are also attached to the inner wall surface 21Rn of the side plate 21R through dowel holes 22f and 22g.

That is, on the inner wall surface 21Ln, a flap door metal fitting 7f is attached to the front side, and a flap door metal fitting 7g is attached to the back side. On the inner wall surface 21Rn, a flap door metal fitting 7g is attached to the front side, and a flap door metal fitting 7f is attached to the back side. The flap door metal fittings 7f and 7g have the same basic configuration and shape, and differ only in orientation.

In the storage cupboard with flap door 1, the closed state (FIG. 1) in which the flap door 4 is closed with respect to the storage portion 20a and the open state (FIG. 3) in which the flap door 4 is opened with respect to the storage portion 20a are changed. It is rotatably mounted (FIG. 2) via two flap door metal fittings 7f and 7g fixed on the front side (in the direction of arrow e) on the upper side of the storage portion 20a.

<Flap door>
As described above, the flap door 4 is rotatably provided via the flap door metal fittings 7f and 7g fixed to the front side (arrow e direction) of the inner wall surfaces 21Ln and 21Rn of the storage portion 20a.

Therefore, as shown in FIGS. 1 to 3, the flap door 4 rotates so as to be lifted from the lower side through the flap door metal fittings 7f and 7g, and becomes parallel to the top plate 21U. It is housed in the housing portion 20a by being pushed in (the direction of arrow f). At this time, the flap door 4 is pushed into the gap between the top plate 21U and the four flap door metal fittings 7f and 7g, and placed on the four flap door metal fittings 7f and 7g.

As shown in FIG. 4, the flap door 4 includes a door main body 40 which is a plate-like member rectangular in plan view, and a screw (not shown) or the like so as to entirely cover the lower end of the door main body 40 . and two hooks 43 attached to both ends of the upper side of the door body 40 by screws 47 or the like.

The handle 41 of the flap door 4 has a book stand 41a with a substantially L-shaped cross section that protrudes forward (in the direction of arrow e) from the front surface 40a of the door body 40. As shown in FIG. The book stand part 41a can hold a book or the like leaning against the front surface 40a, and also functions as a handle for turning by hooking a finger when opening and closing the door main body 40. - 特許庁.

The hooks 43 of the flap door 4 are attached to both ends in the left-right direction (direction of arrow cd) on the upper side (direction of arrow a) of the back surface 40b of the door body 40, and the door body 40 rotates through the flap door fittings 7f and 7g. It is a part that is latched when moving. The hooks 43 attached to the left and right sides have the same structure.

As shown in FIG. 5, the hook 43 includes a plate-shaped attached portion 43a attached to the back surface 40b of the door body 40 of the flap door 4, and a substantially L-shaped hook portion 43b protruding from the attached portion 43a. and The attached portion 43a is attached to the rear surface 40b of the door body 40 with screws 47 (FIG. 4) through two upper and lower through holes 43ah.

A hooking portion 43b of the hook 43 is a portion hooked to a later-described projecting portion 73 (FIGS. 8 to 12) of the flap door metal fittings 7f and 7g. The hooking portion 43b has an arm portion 43ba that is perpendicular to the surface of the attached portion 43a and protrudes to the far side (in the direction of arrow f) away from the surface of the attached portion 43a. It has a claw portion 43bc extending upward (in the direction of the arrow a) parallel to the surface of the portion 43a. That is, the hook portion 43b of the hook 43 is formed in a substantially L shape by the arm portion 43ba and the claw portion 43bc.

<Engaging pin>
As shown in FIG. 6, the engagement pin 5 is a pin-shaped member that is inserted into a plurality of dowel holes 22f and 22g provided in the inner wall surfaces 21Ln and 21Rn of the side plates 21L and 21R.

The engaging pin 5 is composed of a pin body 51 made of aluminum alloy, stainless steel, or the like, and a moving ring 52 made of resin or the like, which is attached so as to be axially movable while covering the pin body 51. . In the engaging pin 5, the pin body 51 and the moving ring 52 are arranged coaxially.

A pin body 51 of the engaging pin 5 includes a cylindrical portion 51a having a predetermined outer diameter and a truncated conical head portion 51b formed at one end of the cylindrical portion 51a and having a larger outer diameter than the cylindrical portion 51a. , and a cylindrical inserted portion 51c formed at the other end of the cylindrical portion 51a and inserted into dowel holes 22f and 22g provided in the inner wall surfaces 21Ln and 21Rn of the side plates 21L and 21R.

The outer diameter of the head portion 51b of the engaging pin 5 is larger than the inserted portion 51c and larger than the inner diameters of the dowel holes 22f and 22g. The head portion 51b has a top surface 51bu and a tapered surface 51bm inclined from the top surface 51bu toward the cylindrical portion 51a.

The outer diameter of the inserted portion 51c of the engaging pin 5 is the same as the inner diameter of the dowel holes 22f and 22g. The inserted portion 51c has an outer peripheral surface 51cg and a tapered surface 51cm inclined from the outer peripheral surface 51cg toward the cylindrical portion 51a.

The moving ring 52 of the engaging pin 5 includes a cylindrical portion 52a attached so as to surround the outer peripheral surface of the cylindrical portion 51a of the pin body 51, and an annular flange portion 52b integrally formed with the cylindrical portion 52a. have.

The inner diameter of the cylindrical portion 52 a is larger than the outer diameter of the cylindrical portion 51 a of the pin body 51 , and the inner diameter of the flange portion 52 b is also greater than the outer diameter of the cylindrical portion 51 a of the pin body 51 . The inner diameter of the cylindrical portion 52a and the inner diameter of the flange portion 52b are the same. Therefore, the movable ring 52 is formed to be movable in the axial direction (longitudinal direction) between the head portion 51b of the pin body 51 and the inserted portion 51c.

The moving ring 52 has a slit 52s formed along the axial direction with respect to the cylindrical portion 52a and the flange portion 52b. The slit 52s of the moving ring 52 is a cut penetrating through the cylindrical portion 52a and the flange portion 52b from the outer peripheral side to the inner peripheral side. That is, both the cylindrical portion 52a and the flange portion 52b are not continuous in the circumferential direction and are interrupted by the slits 52s.

In practice, the engaging pin 5 is inserted into the inserted portion 51c of the pin body 51 and the cylindrical portion 52a of the moving ring 52 with respect to the dowel holes 22f and 22g provided in the inner wall surfaces 21Ln and 21Rn of the side plates 21L and 21R. is inserted and installed. At this time, the flange portion 52b of the moving ring 52 is in contact with the inner wall surfaces 21Ln and 21Rn, and only the flange portion 52b of the moving ring 52 and the head portion 51b of the pin body 51 are exposed.

<Flap door bracket>
Next, the configuration of the flap door metal fittings 7 (7f, 7g) will be described. As shown in FIG. 7, the flap door metal fitting 7f is attached to the front side (arrow e direction) of the inner wall surface 21Ln of the side plate 21L, and the flap door metal fitting 7g is attached to the back side (arrow f direction) of the inner wall surface 21Ln of the side plate 21L. direction).

The flap door metal fitting 7f and the flap door metal fitting 7g have the same basic shape and structure, and the only difference is that they are left-right opposite. Therefore, only the flap door metal fitting 7f will be described below, and the description of the flap door metal fitting 7g will be omitted.

As shown in FIGS. 8 to 10, the flap door metal fitting 7f has a substantially trapezoidal main body portion 71 that is lower on the front side (direction of arrow e) and higher toward the rear side (direction of arrow f). , a protrusion 73 projecting from the front end portion of the body portion 71 (in the direction of arrow e) toward the right side (in the direction of arrow d) away from the body portion 71, and a side surface attached to the inner wall surface 21Ln of the side plate 21L. It has an arm portion 75 made of a substantially triangular plate-like member.

A cylindrical insertion shaft 77 that is inserted into a dowel hole 22f provided in the inner wall surface 21Ln of the side plate 21L is formed integrally with the top portion 75t of the arm portion 75 of the flap door metal fitting 7f. ing. The insertion shaft 77 protrudes from the rear surface 75b of the arm portion 75. As shown in FIG. That is, the body portion 71 has an arm portion 75 that is integrated with the insertion shaft 77 and rotates via the insertion shaft 77 .

As shown in FIG. 9 , the insertion shaft 77 has a cylindrical shape with a through hole 77 h and communicates with the through hole 75 h of the arm portion 75 . A metal reinforcing pin 79 ( FIG. 8 ) is press-fitted into the through hole 75 h of the arm portion 75 and the through hole 77 h of the insertion shaft 77 . As a result, the insertion shaft 77 of the arm portion 75 and the reinforcing pin 79 are inserted into the dowel hole 22f of the inner wall surface 21Ln in an integrated state, and the arm portion 75 is attached so as to be in close contact with the inner wall surface 21Ln.

A body portion 71 of the flap door fitting 7f has a flat top surface 71a on the upper side (in the direction of arrow a). The top surface 71a of the flap door fitting 7f slides on the door body 40 of the flap door 4 while the flap door 4 is being stored in the storage portion 20a of the cabinet 2 and is being pulled out from the storage portion 20a. It is a sliding surface that

An engagement recess 72 is formed adjacent to the protrusion 73 in the axial direction of the insertion shaft 77 at the front end of the main body 71 (in the direction of arrow e). The engaging recess 72 is a recessed space that engages with the engaging pin 5 described above. The distance between the engaging recess 72 in the main body portion 71 of the flap door metal fitting 7f and the insertion shaft 77 formed in the arm portion 75 is determined by a plurality of dowel holes 22f formed in the inner wall surface 21Ln of the side plate 21L. is the same as the distance between

The main body portion 71 of the flap door metal fitting 7f has a through hole 71h penetrating along the axial direction of the insertion shaft 77 in the central portion of the side surface 71s. However, the through hole 71h is not used in the flap door metal fitting 7f, and the stopper pin 78 is press-fitted only to the flap door metal fitting 7g (FIG. 7). When the stopper pin 78 is press-fitted into the through hole 71h of the body portion 71 of the flap door metal fitting 7g (FIG. 7), the stopper pin 78 protrudes from the side surface 71s by a predetermined length.

The stopper pin 78 protrudes in the opposite direction to the insertion shaft 77 along the same direction as the insertion shaft 77 of the arm portion 75 . Therefore, as shown in FIG. 7, the stopper pin 78 comes into contact with the hook 43 of the flap door fitting 7g when the door body 40 of the flap door 4 is stored in the storage portion 20a. It functions as a stopper that restricts movement to the side (arrow f direction).

As shown in FIG. 9, the engaging recess 72 in the main body portion 71 of the flap door metal fitting 7f includes a pin main body head accommodating space 720 for accommodating the head 51b of the pin main body 51 of the engaging pin 5, and a moving ring 52. and a moving ring flange portion accommodating space 730 for accommodating the flange portion 52b.

The pin main body head accommodation space 720 of the engaging recess 72 includes an inner side surface 720n facing the top surface 51bu of the head 51b of the pin main body 51 of the engaging pin 5, and an inner wall portion that contacts the tapered surface 51bm of the head 51b. 722 is a space surrounded by. The pin main body head accommodation space 720 of the engaging recess 72 has a substantially triangular prism-like spatial shape corresponding to the head 51 b of the pin main body 51 .

The inner wall portion 722 defining the pin body head accommodation space 720 is a portion formed by integrating an upper tapered portion 722a and a lower tapered portion 722b. The upper tapered portion 722 a and the lower tapered portion 722 b gradually protrude toward the protrusion 73 as they go deeper into the pin main body head accommodating space 720 . That is, the pin main body head accommodation space 720 has a substantially triangular columnar space that narrows toward the inner side.

The inner wall portion 722 has a pin main body accommodating concave space 722c for accommodating the cylindrical portion 51a of the pin main body 51 of the engaging pin 5 at its central portion. Therefore, in the inner wall portion 722, the columnar portion 51a of the pin body 51 is inserted into the pin body accommodating recessed space 722c from the gap between the sharp tip portion of the upper taper portion 722a and the sharp tip portion of the lower taper portion 722b. .

The inner wall portion 722 has an upper tapered portion 722a and a lower tapered portion 722b which are vertically symmetrical with respect to the pin main body accommodating recessed space 722c. . This is to allow the head portion 51 b of the pin body 51 of the engaging pin 5 and the flange portion 52 b of the moving ring 52 to easily enter the engaging recess 72 .

The gap between the sharp tip portion of the upper taper portion 722a and the sharp tip portion of the lower taper portion 722b is the shortest, and the distance is slightly smaller than the outer diameter of the cylindrical portion 51a of the pin body 51 of the engaging pin 5. to small.

Therefore, when the engaging pin 5 is finally attached to the engaging recess 72, the columnar portion 51a of the pin body 51 is inserted into the pin body accommodating recessed space 722c from the gap between the upper tapered portion 722a and the lower tapered portion 722b. Pushed in by press fitting. In such a finally attached state, the head portion 51b of the engaging pin 5 is accommodated in the pin body accommodating recessed space 722c of the inner wall portion 722, and the movement of the head portion 51b in the axial direction is restricted. It will be.

A moving ring flange portion accommodation space 730 of the engaging recess 72 is a space formed between an inner wall surface 722n of the inner wall portion 722 and an inner wall surface 71n of the main body portion 71 . On the inner wall surface 71n of the body portion 71, protruding pieces 725 protrude from the upper side (direction of arrow a) and the lower side (direction of arrow b) on the distal end side so as to face each other and restrict the movement of the flange portion 52b of the moving ring 52. , 726. That is, the flange portion 52b of the moving ring 52 can come into contact with the projecting pieces 725 and 726 of the main body portion 71 of the flap door metal fitting 7f, and the axial movement of the engaging pin 5 is restricted.

As shown in FIGS. 11 and 12, the protrusion 73 of the flap door metal fitting 7f is a portion that protrudes from the side surface 71s of a generally fan-shaped side view, and is adjacent to the engaging recess 72 as shown in FIG. It is a portion that is integrated and protrudes to the right (in the direction of arrow d) away from the side surface 71s of the main body portion 71 .

The projection 73 has a flat surface 73a, an engaging surface 73b, and a sliding surface 73c. It is a flat surface formed so as to incline toward it.

The hooking surface 73b of the projecting portion 73 is a curved surface extending downward (in the direction of the arrow b) from the end of the flat surface 73a. The sliding surface 73c of the projecting portion 73 is an arcuate surface that is connected to both the flat surface 73a and the hooking surface 73b and contacts and slides on the attached portion 43a of the hook 43 .

The length of the flat surface 73a of the protrusion 73 from the boundary between the flat surface 73a and the sliding surface 73c to the boundary between the flat surface 73a and the latching surface 73b is the length of the arm portion 43ba of the hook 43 in the longitudinal direction. is the same as

Therefore, as shown in FIG. 12, the arm portion 43ba of the hook 43 and the flat surface 73a of the projecting portion 73 can come into surface contact when the flap door 4 is in the intermediate stage between the open state and the closed state. At this time, the claw portion 43bc of the hook 43 is in contact with the hooking surface 73b of the projecting portion 73. As shown in FIG. That is, the arm portion 43ba and the claw portion 43bc of the hook 43 are engaged with the protrusion 73, and the hook 43 is rotatably supported via the protrusion 73. As shown in FIG.

As shown in FIGS. 1 and 11, when the flap door 4 is closed, the handle 41 of the flap door 4 is in contact with the front end of the shelf board 3 (in the direction of arrow e). Therefore, the flap door 4 does not rotate further, and the hooked state in which the claw portion 43bc of the hook 43 is hooked on the hooking surface 73b of the projecting portion 73 is maintained.

<How to attach the metal fittings for the flap door>
Next, a procedure for attaching the flap door fitting 7f to the inner wall surface 21Ln of the side plate 21L will be described in order with reference to FIGS. 13(A) to 13(E). Since the flap door metal fitting 7g is also attached by the same method, the description thereof will be omitted.

As shown in FIG. 13A, the user inserts the engaging pin 5 into the dowel hole 22f one level below the uppermost dowel hole 22f provided in the inner wall surface 21Ln of the side plate 21L. At this time, the engaging pin 5 has the inserted portion 51c of the pin body 51 and the cylindrical portion 52a of the moving ring 52 inserted into the dowel hole 22f until the flange portion 52b of the moving ring 52 contacts the inner wall surface 21Ln.

Next, as shown in FIG. 13B, the user inserts the insertion shaft 77 provided on the arm portion 75 of the flap door fitting 7f into the uppermost dowel hole 22f provided on the inner wall surface 21Ln. In this state, the flap door metal fitting 7f is rotatable about the insertion shaft 77 within a radius of the arm portion 75. As shown in FIG.

As shown in FIGS. 13C and 13D, the user holds the main body 71 of the flap door fitting 7f by hand and rotates it forward (in the direction of arrow e). Then, the head portion of the pin body 51 of the engagement pin 5 is moved to the pin body head accommodation space 720 and the moving ring flange portion accommodation space 730 formed in the engagement recess 72 of the main body portion 71 of the flap door metal fitting 7f. 51b and the flange portion 52b of the moving ring 52 are accommodated.

At this time, as shown in FIG. 10, the head of the pin body 51 of the engaging pin 5 is pressed against the upper tapered portion 722a and the lower tapered portion 722b of the inner wall portion 722 defining the pin body head accommodating space 720. The tapered surface 51bm of the portion 51b contacts.

Here, the upper tapered portion 722a and the lower tapered portion 722b of the inner wall portion 722 of the engaging recess 72 gradually protrude toward the protrusion 73 as it goes deeper into the pin main body head accommodation space 720. The pin main body head accommodation space 720 becomes narrower toward the inner side.

Therefore, when the main body portion 71 of the flap door metal fitting 7 f is rotated, the head portion 51 b of the pin main body 51 of the engaging pin 5 moves toward the inner side of the pin main body head accommodation space 720 . At this time, as the head portion 51 b of the pin body 51 of the engaging pin 5 moves toward the inner side of the pin body head accommodation space 720 , the pin body 51 is pulled by the upper tapered portion 722 a and the lower tapered portion 722 b of the inner wall portion 722 . head 51b is pulled toward the projection 73 side.

The head 51b of the pin body 51 is pulled toward the protrusion 73, but the flange 52b of the moving ring 52 is in contact with the inner wall surface 722n of the inner wall 722, so the moving ring 52 moves toward the protrusion 73. I have nothing to do.

Then, the cylindrical portion 52a is expanded through the slit 52s of the moving ring 52 and covers the outer peripheral surface 51cg of the inserted portion 51c of the pin body 51. As shown in FIG. As a result, the inserted portion 51c of the pin main body 51 of the engaging pin 5 and the cylindrical portion 52a of the moving ring 52 strongly abut against the inner peripheral surface of the dowel hole 22f of the inner wall surface 21Ln of the side plate 21L, resulting in interference fit. , the engagement pin 5 is prevented from coming off.

At the same time, the columnar portion 51a of the pin body 51 of the engaging pin 5 is press-fitted into the pin body accommodating concave space 722c from the gap between the upper tapered portion 722a and the lower tapered portion 722b of the inner wall portion 722 ( Figure 10).

As a result, as shown in FIG. 13(E), the flap door metal fitting 7f and the engaging pin 5 are firmly fixed to each other, and the flap door metal fitting 7f is stably attached to the side plate without rattling. It is fixed to the inner wall surface 21Ln of 21L.

The flap door metal fitting 7g is also fixed to the dowel hole 22g formed in the inner wall surface 21Ln of the side plate 21L in the same manner as the flap door metal fitting 7f.

Thus, in the inner space of the storage portion 20a, as shown in FIG. 7, the flap door metal fitting 7f on the near side (in the direction of arrow e) and the flap door metal fitting 7g on the far side (in the direction of arrow f) are at the same height. are arranged parallel to each other. 1 to 3, the inner wall surface 21Rn of the side plate 21R is also formed with the flap door metal fitting 7g on the front side (arrow e direction) and the flap door metal fitting on the back side (arrow f direction). 7f is attached.

<Action and effect>
In the above configuration, in the storage cupboard with flap door 1, the engagement pin 5 attached to one dowel hole 22f of the inner wall surface 21Ln of the side plate 21L is rotatable to the other dowel hole 22f of the inner wall surface 21Ln. 7f of metal fittings for flap doors attached to are rotated. As a result, the engaging pin 5 is engaged with the engaging recess 72 of the flap door metal fitting 7f, and the flap door metal fitting 7f is fixed to the inner wall surface 21Ln.

At this time, the engaging recess 72 of the flap door metal fitting 7f and the engaging pin 5 are firmly engaged with each other, so that the user can easily and firmly open the flap door by a simple operation without using tools. The fitting 7f can be fixed to the inner wall surface 21Ln of the side plate 21L.

In the storage cupboard with flap door 1, a total of four flap door metal fittings 7f and 7g are fixed to the inner wall surfaces 21Ln and 21Rn of the side plates 21L and 21R, and the top surface 71a of each body portion 71 is used as a sliding surface. The door body 40 of the flap door 4 can be pushed into or pulled out of the storage portion 20a while sliding. Therefore, in the storage cupboard with flap door 1, the flap door metal fittings 7f and 7g can be used instead of the slide rails, and the number of parts can be reduced to simplify the configuration.

In the storage cupboard with flap door 1, the flap door metal fittings 7f and 7g can be fixed using the existing dowel holes 22f and 22g previously provided in the inner wall surfaces 21Ln and 21Rn of the side plates 21L and 21R. Therefore, there is no need to form new mounting holes in the inner wall surfaces 21Ln, 21Rn of the side plates 21L, 21R, and the mounting holes remain even after the flap door metal fittings 7f, 7g are removed. It's all done.

In the storage cupboard with flap door 1, when the door body 40 of the flap door 4 is placed on the four flap door metal fittings 7f and 7g and stored in the storage portion 20a, the flap door metal fittings 7f and 7g are separated. The door body 40 of the flap door 4 does not rest on the entire top surface 71 a of the body portion 71 . Actually, as shown in FIG. 7, the door body 40 of the flap door 4 is placed in contact with only the highest vertex 71at on the upper side (in the direction of arrow a) of the top surface 71a.

Therefore, in the storage cupboard with flap door 1, the door body 40 slides on the top surface 71a of the body portion 71 of the flap door fittings 7f and 7g only when the flap door 4 is opened and closed between the open state and the closed state. only to do. Therefore, the sliding resistance between the door main body 40 and the top surface 71a of the main body portion 71 of the flap door fittings 7f and 7g is not large, and the flap door 4 can be smoothly opened and closed.

Further, as shown in FIG. 7, when the door body 40 of the flap door 4 is stored in the storage portion 20a, the arm portions 43ba of the two hooks 43 attached to the door body 40 are on the far side (in the direction of the arrow f). ), and the door body 40 is restricted from moving at that position.

This is the position where the handle 41 of the door body 40 is flush with the housing portion 20a without protruding from the housing portion 20a. Therefore, the user can store the flap door 4 in a state in which the door body 40 does not go too far toward the back side (in the direction of the arrow f) without being particularly conscious of it.

(3) Other Embodiments In addition, in the present embodiment described above, the case where the main body portion 71 of the flap door metal fittings 7f and 7g is provided with the stopper pin 78 was described, but the present invention is limited to this. The stopper pin 78 may not be provided depending on the application.

In addition, those skilled in the art can appropriately modify the storage cupboard 1 with flap doors of the present invention according to conventionally known knowledge. As long as the configuration of the present invention is still provided even with such modification, it is, of course, included in the scope of the present invention.

DESCRIPTION OF SYMBOLS 1... Storage cupboard with a flap door, 2... Cabinet, 3... Shelf board, 4... Flap door, 5... Engagement pin, 7f, 7g... Flap door metal fittings, 21L, 21R... Side plate, 21Ln, 21Rn... Inner wall surface, 21U... Top plate, 21D... Bottom plate, 20... Storage space, 20a to 20e... Storage part, 22f, 22g... Dowel hole, 40... Door body, 41... Handle, 41a... Bookstand, 43... Hook, 43a... Mounted Part 43b... Hooking part 45, 47... Screw 51... Pin body 51a... Cylindrical part 51b... Head part 51c... Inserted part 52... Moving ring 52a... Cylindrical part 52b... Flange part 52s... Slit 71... Body part 72... Engagement concave part 73... Protrusion part 75... Arm part 77... Insertion shaft 78... Stopper pin 79... Reinforcement pin 720... Pin body head accommodation space 730 ... Moving ring flange portion accommodating space 722 ... Inner wall portion 722a ... Upper tapered portion 722b ... Lower tapered portion 722c ... Pin main body accommodating recessed space 725, 726 ... Protruding piece.

Claims (6)

a cabinet;
a plate-shaped door body rotatably attached to the storage portion of the cabinet for opening and closing the storage portion;
a flap door fitting that rotatably supports the door body;
an engaging pin inserted into one insertion hole previously formed in an inner wall surface of a side plate forming the storage portion of the cabinet and engaged with the flap door fitting;
with
The flap door metal fitting is
a body portion having a sliding portion that moves the door body in a slidable state when the door body is stored in the storage portion;
an insertion shaft provided integrally with the main body portion and inserted into another insertion hole previously formed in the inner wall surface of the side plate;
Provided at the distal end of the body portion, the body portion is engaged with the head portion of the engaging pin in a state where the body portion is rotated with respect to the inner wall surface via the insertion shaft, and the inner wall surface of the body portion is engaged. an engagement recess that fixes the position with respect to
a protrusion provided at the tip of the main body for rotatably hooking the door body via a hook provided on the door body;
A storage cupboard with a flap door, characterized by comprising: The storage cupboard with a flap door according to claim 1, wherein the engaging recess and the projection are integrated so as to be adjacent to each other in the axial direction of the insertion shaft. The storage cupboard with a flap door according to claim 1, wherein the main body has an arm that is integrated with the insertion shaft and rotates via the insertion shaft. The storage cupboard with a flap door according to claim 1, wherein the insertion shaft has a cylindrical shape having a through hole, and a metal reinforcing pin is inserted into the through hole. The door body has the hook on the back surface to be engaged with the protrusion,
The storage cupboard with a flap door according to claim 1, wherein the body portion has a stopper pin that contacts the hook when the door body is stored in the storage portion. A flap door fitting used for storing a door body of a flap door in a storage part of a cabinet,
a body portion having a sliding portion that moves a portion of the door body in a slidable state;
an insertion shaft provided integrally with the main body portion and inserted into one insertion hole previously formed in an inner wall surface of a side plate forming the storage portion;
with
The body portion is provided at the tip portion of the body portion, and is engaged with and fixed to the head portion of an engagement pin inserted into another insertion hole previously formed in the inner wall surface of the side plate. and a protrusion that rotatably hooks the door body via a hook provided on the door body.

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