JP2004225432A - Repair parts for latch mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily repair a resilient member for applying energizing force to engage a drawer side engaging part with a casing side engaging part in a latch mechanism in the case the resilient member is broken. <P>SOLUTION: The repair parts are mountable to furniture having the casing side engaging part, the drawer side engaging part and the latch mechanism for allowing the drawer side engaging part to be detachably engaged with the casing side engaging part. The drawer side engaging part having a hole passing through the engaging/disengaging direction, is a part of approximately U-shape 20" from the top view and is formed of a metallic elongate member with springiness to flexure. The upper and lower sides 20D, 20D' of the U-shape are formed to oppress the drawer side engaging part from the inside of the through hole, or two end parts of the U-shape have end bent parts 20A, 20A' going in the outer direction of the U-shape. Stepped parts 20B, 20B' going in the outer direction of the U-shape are provided at the intermediate parts of the upper and lower sides of the U-shape. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a repair part in a latch mechanism for locking or opening a drawer such as a cabinet or other office furniture or a household furniture with respect to a housing.
[0002]
[Prior art]
A drawer such as a cabinet is normally locked so that the housing is shaken by an earthquake or some impact in the housed state, and the housed drawer does not accidentally pop out. An elastic member is used to maintain this locked state, and the engaging portion on the drawer side is engaged with the engaging portion on the housing side by the urging force of the elastic member. Many such elastic members are formed integrally with the drawer-side engaging portion and its pivot portion by injection molding of synthetic resin to reduce costs. Patent Literature 1 listed below discloses a latch mechanism using such a synthetic resin elastic member.
[Patent Document 1]
Japanese Utility Model Publication No. 50-157330
[Problems to be solved by the invention]
However, the drawer is repeatedly put in and taken out, and such repetition may cause breakage of such an elastic member in many cabinets, making it impossible to lock the drawer during storage. In such a case, in order to repair the breakage of the elastic member, it must be replaced together with the drawer side engaging portion and the rotating pivot portion. Usually, the rotating pivot portion of the engaging portion is one of the latch mechanisms. As a part, it is mounted in an internal space surrounded by a plate member forming the front part of the drawer, and replacement work is very troublesome.
Therefore, the present invention provides a repair part which can easily repair the elastic member which provides the urging force for engaging the drawer side engaging portion with the housing side engaging portion in the latch mechanism when the elastic member is broken. Aim.
[0004]
[Means for Solving the Problems]
The applicant of the present application pays attention to the fact that only the resilient member is broken, not the drawer-side engaging portion itself, and provides a repair part that can easily repair the latch mechanism.
In view of the above object, in claim 1, a casing-side engaging portion provided on the casing side and a drawer-side engaging portion provided on the drawer side and capable of engaging with the casing-side engaging portion in the drawer storage state. And a latch mechanism that allows the drawer-side engaging portion to be disengageable from the housing-side engaging portion, and has a hole through which the drawer-side engaging portion penetrates in the engaging and disengaging direction. It is formed by a metal elongated member having a spring property against bending, and is a substantially U-shaped part in plan view, and upper and lower sides of the U shape are drawn through the drawer side engaging portion inside the through hole. It is formed so as to be pressed from the outside, or has an end bent portion that goes outward from the two ends of the U-shape, and in the middle of each of the upper and lower sides of the U-shape, Provided is a repair part for a latch mechanism, characterized by having a stepped portion facing the same. In the present application, the U-shape represents a shape having an opening and surrounding the other, and is used in a very broad sense including a C shape and the like, and is used throughout the embodiments. The size becomes clear.
[0005]
The back side of the U-shaped repair part is inserted into the through hole of the drawer side engaging portion from the outside of the drawer and pushed in, and the step portion is located on the other side (side of the drawer side) of the drawer side engaging portion. On the other hand, the end bent part of the part is located on this side (the side far from the side of the drawer), or the upper and lower sides repress the facing through-hole forming wall part from the inside, so the repair part is the end part. The drawer side engaging portion is sandwiched between the bent portion and the step portion, or the drawer side engaging portion is locked and retained by the elastic force and the step portion. The U-shaped rear part of the repair component located on the other side of the drawer side engaging portion abuts on the drawer side surface, and urges the drawer side engaging portion in a direction away from the drawer side surface. Therefore, at the drawer storage position, the drawer side engaging portion engages with the housing side engaging portion. Also, when the engagement is released by the latch mechanism against the urging force of the repair part, the step part of the repair part is locked to the drawer side engaging part, and the repair part is detached from the drawer side engaging part. Is prevented.
[0006]
According to claim 2, a housing side engaging portion provided on the housing side, a drawer side engaging portion provided on the drawer side and capable of engaging with the housing side engaging portion in the drawer housed state, The engaging portion can be attached to furniture having a latch mechanism that can be disengaged from the housing-side engaging portion, and is formed by a metal elongated member having spring properties against bending, and is substantially U-shaped in plan view. The upper and lower sides of the U-shape are formed so as to have an elastic force sandwiching the drawer-side engaging portion, or an end folded toward the opening of the U-shape from the two ends of the U-shape. A repair part for a latch mechanism, which has a curved part, and has a step toward the inside of the U-shape in the middle of each of the upper and lower sides of the U-shape.
[0007]
Unlike the case where the repair part is locked from the inside of the through hole in the case of claim 1, the repair part is locked and held from outside (upper and lower) of the drawer side engaging portion. That is, the upper and lower sides of the U-shape of the component are attached from the outside of the drawer side engaging portion so as to sandwich the drawer side engaging portion with elastic force, or this side of the drawer side engaging portion (far from the side of the drawer side). Side), the end bent portion of the component is located. Also, a step portion is located on the other side. Therefore, it is locked and held by the drawer side engaging portion by the step portion and the end bent portion, or by the elastic force and the step portion. The U-shaped rear part of the repair component located on the other side of the drawer side engaging portion abuts on the drawer side surface, and urges the drawer side engaging portion in a direction away from the drawer side surface. Therefore, at the drawer storage position, the drawer side engaging portion engages with the housing side engaging portion. Also, when the engagement is released by the latch mechanism against the urging force of the repair part, the step part of the repair part is locked to the drawer side engaging part, and the repair part is detached from the drawer side engaging part. Is prevented.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in more detail based on embodiments shown in the accompanying drawings.
FIG. 1 is a perspective view of a main part of a cabinet to which a repair part according to the present invention is applied, FIG. 2 is a side view of a front part of the drawer, and FIG. 3 is a housing 10 and a drawer of FIGS. It is the top view which cut | disconnected 12 component plate members and looked at the inside from the top. The drawer 12 is provided with a handle (not shown), and when the user pulls the handle, the extending member R1 extending in the left-right direction is configured to rotate around its axis. One end (the right end in this example) is bent to form a bent portion R1 'extending vertically.
[0009]
On the other hand, at an appropriate position of the drawer, a drawer side engaging portion R4 is mounted so as to protrude toward the rear side of the drawer. The drawer-side engaging portion is configured to be rotatable around a pivot R3, and further, a tongue-like elastic member R5 having a spring property against bending is integrated with the root of the drawer-side engaging portion. , And pivot about the pivot R3. An engaging portion R2 extending in the left-right direction is attached to the pivot R3, and is in contact with the bent portion R1 '. The elastic member R5 has an end region far from the pivot R3 in contact with the drawer side surface 12C. Therefore, when the handle of the drawer is pulled, the bent portion R1 'pushes the engaging portion R2 counterclockwise in FIG. 3 against the elastic force of the elastic member. Therefore, by the rotation about the pivot R3, the drawer side engaging portion R4 is also driven to rotate counterclockwise.
[0010]
At a predetermined position of the housing 10, a housing-side engaging portion 10T protruding toward the side of the drawer is provided. In the drawer storage state, the drawer-side engaging portion R4 is engaged with the housing-side engaging portion 10T by the urging action of the elastic member R5 as shown in FIG. As shown in FIG. 2, the drawer-side engaging portion R4 in this example has a through hole R4K surrounded by upper and lower arms R4A and R4B, an upper end R4C, and the like. The housing-side engaging portion 10T is engaged with the inside.
[0011]
The above-described elastic member R5 is a form in which the elastic member R5 goes out of the internal space surrounded by the front plate 12A and the rear plate 12B which define the front portion of the drawer and presses the drawer side surface 12C. Can be applied to other forms. That is, as shown by a two-dot chain line in FIG. 3, the elastic member R5 'is arranged in the internal space of the front part of the drawer and presses the back surface of the front plate 12A.
[0012]
The drawer-side engaging portion R4, the pivot R3, the elastic member R5 (or R5 '), and the engaging portion R2 are often integrally manufactured at low cost by injection molding synthetic resin. However, since the elastic member is repeatedly subjected to large deformation, the elastic member may be broken for a long time. In this case, the latch mechanism that engages and disengages the drawer-side engaging portion R4 with respect to the housing-side engaging portion 10T. Function cannot be maintained. For example, the function of the latch mechanism can be restored by using the repair part 20 having the configuration shown in FIG.
[0013]
FIG. 5 shows a plan view of the component 20. The U-shape described in the present application indicates a shape drawn by a two-dot chain line 20 "in the case of the embodiment shown in Fig. 5. Two ends of the member are located on the opening 20K side of the U-shape. In this case, the end portions are provided with end bent portions 20A and 20A 'which are bent outwardly. Stepped portions 20B and 20B 'are provided, and a U-shaped rear portion 20C connects the stepped portions and the like.
[0014]
The repair part 20 is formed of an elongated metal member having a spring property against bending. The U-shaped deep portion of this member is positioned farther from the side surface 12C of the drawn drawer with respect to the through hole R4K of the drawer-side engaging portion R4 (outward side of the drawer, drawer-side engagement of FIG. 3). From the right side of the section and pushed in to position the step 20B on the side (left side) of the drawer side of the drawer side engaging section. In this case, the end bent portions 20A and 20A 'remain on the side far from the drawer side surface of the drawer side engaging portion, and have dimensions such that the rear portion 20C of the component abuts on the drawer side surface 12C in an inclined manner. It is formed in the form.
[0015]
In this manner, the drawer side engaging portion is sandwiched between the end bent portion and the step portion, and the spring force of the repair part 20 is applied to the drawer side engaging portion R4 via the step portions 20B and 20B '. In the drawer storage position, the drawer side engaging portion R4 is engaged with the housing side engaging portion 10T. This state is shown in FIG. In this embodiment, since the groove M is formed near the base of the drawer side engaging portion R4 and on the side far from the drawer side surface 12C, the end bent portions 20A and 20A ′ of the repair part are formed. Can be locked, and the position of repair parts is very stable.
[0016]
As shown in the figure, the housing-side engaging portion 10T has an inclined surface 10TK that is lower toward the front side, and the vertical end portion R4C of the drawer-side engaging portion R4 also has, as shown in FIGS. The tip is formed in an inclined shape. Therefore, when the drawer is pulled out after the drawer side engaging portion and the housing side engaging portion are disengaged from each other by the latch mechanism and then the drawer is stored, the inclined surface serves as a guide, and the drawer side engaging portion is provided. R4 smoothly and finally engages while temporarily retreating from the housing side engaging portion 10T while resisting the urging force of the repair component 20.
[0017]
The upper and lower sides 20D, 20D 'of the repair part 20 in the above embodiment are not formed so as to press the upper and lower arms R4A, R4B from the inside of the drawer side engaging portion (through hole side). However, such a pressing action can be exerted by setting the normal separation distance of each side to be large. In this case, the mounting stability of the repair component to the drawer-side engaging portion is further improved. Furthermore, when the sides 20D and 20D 'exert this pressing action, the end bent portions 20A and 20A' can be eliminated.
[0018]
As can be seen from the above description, the form of the repair component 20 only needs to have the stepped portion 20B with respect to the upper and lower sides 20D and 20D ', and various shapes of the stepped portion and the inner portion thereof can be considered. For example, as shown by a two-dot chain line 20BC1 in FIG. 4, there may be no bent portion of the stepped portion, and it may be formed in a rectangular shape as it is, or may be formed in an arc shape 20BC2.
[0019]
As a repair part, a form shown in a plan view in FIG. 7 is also conceivable. This is a mode in which the repair component 20 'is engaged with the outside of the drawer-side engaging portion, as opposed to being inserted and engaged with the inside (through hole side) as described above. Therefore, a through hole is not necessarily required in the drawer side engaging portion. Even in the engagement with the housing-side engaging portion, the drawer-side engaging portion does not have a through hole, and may simply have a concave portion. Further, if the casing side engaging portion is a concave portion, the drawer side engaging portion may have a convex portion instead of a concave portion. This is also true in the case of the above-described embodiment using the components of FIG.
[0020]
The two ends of the member are located on the side of the U-shaped opening 20K. In this case, the end portions are provided with end bent portions 20a and 20a 'bent inward (openings). In addition, step portions 20b and 20b 'are provided at appropriate positions on the upper and lower sides of the U-shape, respectively, toward the inside of the U-shape. The U-shaped back side portion 20c connects the step portion and the like.
[0021]
In this embodiment, the upper and lower ends R4C of the drawer-side engaging portion R4 are repaired so that the upper and lower sides 20d and 20d 'are mounted outside the upper and lower arms R4A and R4B of the drawer-side engaging portion R4. It is mounted so as to be inserted into the internal space of the component 20 '. Also in this case, the step is formed in such a size that the step portion is located on the drawer side surface 12C side of the drawer side engaging portion. The end bent portion is located farther from the drawer side surface 12C of the drawer side engaging portion, and the end bent portion and the step portion are mounted so that the drawer side engaging portion is sandwiched from the left and right.
[0022]
In this case, it is more preferable that the upper and lower sides 20d, 20d 'are formed in such a size that the upper and lower arms R4A, R4B of the drawer side engaging portion R4 are sandwiched from above and below while being pressed by elastic force from outside. . In addition, in the case of this vertical press holding, the end bent portion may not be provided. In addition, the items described by the two-dot chain line in FIG. 4 also apply to these embodiments.
The modifications described in each place can be applied to other forms as long as they do not conflict with each other.
[0023]
【The invention's effect】
As is apparent from the above description, according to the present invention, when the elastic member that applies the urging force for engaging the drawer-side engaging portion with the housing-side engaging portion in the latch mechanism is broken, Instead, it is possible to provide a repair part that can be easily attached and repaired from outside without disassembling the drawer.
[Brief description of the drawings]
FIG. 1 is a perspective view of a main part of a cabinet to which a repair part according to the present invention is applied.
FIG. 2 is a side view of the front part of the drawer.
FIG. 3 is a plan view of the casing and the drawer constituting plate of FIGS. 1 and 2 cut away and the inside viewed from above.
FIG. 4 is a perspective view of a repair part according to the present invention.
FIG. 5 is a plan view of the component of FIG. 4;
FIG. 6 is a diagram replacing FIG. 3 in which the parts of FIG. 4 are applied to the furniture shown in FIGS. 1 to 3;
FIG. 7 is a plan view showing another embodiment of the repair component according to the present invention.
[Explanation of symbols]
Reference Signs List 10 housing 10T housing side engaging portion 12 drawer 20, 20 'repair part 20A, 20A' end bent portion 20B, 20B 'stepped portion 20K opening R4 drawer side engaging portion

Claims (2)

A housing-side engaging portion provided on the housing side, a drawer-side engaging portion provided on the drawer side and capable of engaging with the housing-side engaging portion in the drawer-housing state, and It can be attached to furniture having a latch mechanism that allows the body side engaging portion to be disengageable, and the drawer side engaging portion has a hole that penetrates in the engaging and disengaging direction,
A substantially U-shaped part formed in a plan view, formed by a metal elongated member having spring properties against bending, and upper and lower sides of the U-shape press the drawer side engaging portion from the inside of the through hole. Or has an end bent portion directed outward from the U-shaped from two ends of the U-shaped, and a stepped portion directed outwardly from the U-shaped in the middle of each of the upper and lower sides of the U-shaped. Repair parts for a latch mechanism, characterized in that they have a repair mechanism. A housing-side engaging portion provided on the housing side, a drawer-side engaging portion provided on the drawer side, which can be engaged with the housing-side engaging portion in the drawer storage state, and the drawer-side engaging portion A latch mechanism that allows the body to be disengaged from the body-side engaging portion;
It is formed by a metal elongated member having a spring property against bending, and is a substantially U-shaped part in a plan view, formed so that upper and lower sides of the U-shape have an elastic force sandwiching the drawer side engaging portion. Or have an end bent portion from two ends of the U-shape toward the opening of the U-shape, and have a step portion toward the inside of the U-shape in the middle of each of the upper and lower sides of the U-shape. Repair parts for the latch mechanism.

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