JP2020002665A - Latch case set and door equipped with the same - Google Patents

Abstract

To provide a latch case set capable of easily aligning a front plate part of a latch case with a front cover and efficiently attaching the latch case to a door body, and a door equipped with the latch case set.SOLUTION: A fitting part 31 is formed on one of a front cover 20 and a front plate part 12, and the other is thereon formed with a fitting receiving part 32 fitted to the fitting part 31.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a latch case set attached to a door and a door including the same.

  Conventionally, a latch case to be attached to a door and a cosmetic front cover to be attached to the front side of a front plate portion are configured to be screwed to the door main body at two upper and lower locations (for example, Patent Document 1).

FIG. 4 of JP-A-2017-160723

  However, since two screw holes are formed in each of the front plate portion and the front cover of the latch case, it is difficult to perform hole alignment when overlapping, that is, proper alignment of the two plate members.

  SUMMARY OF THE INVENTION The present invention has been proposed in view of the above circumstances, and an object of the present invention is to easily align a front plate portion of a latch case with a front cover and efficiently mount the latch case to a door body. It is an object to provide a door provided with a case set and its latch case set.

  In order to achieve the above object, a latch case set according to the present invention includes a latch case having a door latch mechanism, and a substantially flat front plate portion arranged to overlap a front side of a front plate portion of the latch case. And a cover case, wherein the front cover is fixed to a door body with screws via the front plate portion, wherein a fitting portion is provided on one of the front cover and the front plate portion. And a fitting receiving portion is formed on the other side.

  Further, a door according to the present invention includes the above-mentioned latch case set.

  Since the latch case set of the present invention is configured as described above, the front plate portion of the latch case and the front cover can be easily aligned, and can be efficiently attached to the door body.

  Further, since the door of the present invention has the above-described configuration, the latch case and the front cover can be efficiently attached.

FIG. 4 is a side view showing a combined state of a latch case and a front cover which constitute a latch case set according to one embodiment of the present invention. It is an exploded perspective view of the same latch case set. It is a side view which shows an example of the assembly procedure of the same latch case set. FIG. 4 is a partially exploded schematic exploded perspective view showing an example of a door in which the latch case is incorporated.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. First, a schematic basic configuration of the latch case set A will be described.

  The latch case set A includes a latch case 10 provided with a latch mechanism (not shown) for the door 1, and a substantially flat front cover 20 disposed on the front side of the front plate 12 of the latch case 10. And The front cover 20 is fixed to the door body 2 with screws 9 via the front plate 12. A fitting part 31 is formed on one of the front cover 20 and the front plate part 12, and a fitting receiving part 32 that fits with the fitting part 31 is formed on the other.

  Next, the latch case set A having the latch case 10 and the front cover 20 and the door 1 to which the latch case set A is assembled will be described in detail with reference to FIGS. FIG. 1 is an exploded perspective view of the latch case set A. FIG. 2 is a side view showing a combined state of the latch case 10 and the front cover 20 constituting the latch case set A. FIG. 3 is a side view showing an example of an assembling procedure of the latch case set A. FIG. 4 is a partially exploded schematic exploded perspective view showing an example of the door 1 in which the latch case set A is incorporated.

  The latch case set A is assembled on the door end side of the door 1 (see FIG. 4). The latch case set A includes a latch case 10 with a front plate portion 12, a front cover 20 that covers the front plate portion 12 from the door end side, and is attached to the door 1 so as to be exposed at the door end side end surface. It has. The latch case 10 with the front plate 12 has the front plate 12 fixed to the latch case main body 11. The configuration of the door 1 will be described later in the description of FIG.

  The latch case main body 11 has a configuration in which a first case 11a and a second case 11b made of resin divided in the door thickness direction are combined, and a housing space is formed therein. A latch mechanism including a latch member 13 is accommodated in the accommodation space.

  The latch member 13 is a rod-shaped member, and is disposed in the latch case main body 11 so that the longitudinal direction thereof is aligned with the door width direction. It is assembled in the latch case main body 11 so as to protrude and retract through 12a.

  On both sides of the latch case body 11 in the thickness direction, a shaft insertion hole 11c through which the connecting shaft 6a (see FIG. 4) of the handle 6 (see FIG. 4) is inserted, and an unlocking member 7 (see FIG. 4) are attached. A lock connecting portion 11d and the like are formed.

  The front plate portion 12 is a substantially rectangular plate-like body fixed to the door end side of the latch case 10, and its longitudinal dimension is longer than the vertical dimension of the latch case 10, and the whole of the latch case 10 is It is fixed to the latch case main body 11 so as to be more visible and hidden. The front plate 12 is formed with an opening 12a for projecting and retracting a latch head 13a, and a screw hole 12b for fixing a screw 9 to the door body 2. In this example, the screw 9 is fixed at one place above the opening 12a of the front plate portion 12.

  The cover body 25 of the front cover 20 is a plate-like body extending vertically, and its longitudinal dimension is substantially the same as the longitudinal dimension of the front plate section 12, and its width dimension is also substantially the same as the width dimension of the front plate section 12. You. That is, the cover main body 25 of the front cover 20 has substantially the same shape as the front plate portion 12, is superposed so as to hide the front plate portion 12, and is a plate material attached without protruding above, below, right and left of the front plate portion 12. You.

  The cover main body 25 has a latch opening 21 through which a latch head 13a protruding from an opening 12a of the front plate portion 12 is inserted when properly stacked on the front plate portion 12, and a screw hole 12b of the front plate portion 12. A cover-side screw hole 22 in which the screw head is arranged to overlap is formed. Further, the front cover 20 includes a fitting piece 23 that protrudes in an L-shape from the lower end of the cover body 25 when viewed from the side, on the back surface side.

  The fitting piece 23 has an extending piece 23a extending in the door width direction and a projecting piece 23b projecting upward. The fitting piece 23 extends from the lower end of the cover main body 25 toward the latch case main body 11 so as to be substantially parallel to the lower side of the latch case main body 11. The protruding piece 23b protrudes upward substantially in parallel with a plate material forming the cover main body 25 from an end of the extension piece 23a on the front plate 12 side.

  Between the projecting piece 23b of the fitting piece 23 and the cover main body 25, a gap space having substantially the same thickness as the front plate 12 is formed. This gap space is a fitting concave portion 23c that sandwiches the edge portion 12c at the lower end of the front plate portion 12 from the front and rear and has the extended piece portion 23a as the bottom. That is, the fitting concave portion 23c forms the fitting receiving portion 32, and the edge 12c at the lower end of the front plate portion 12 forms the fitting portion 31.

  The latch case 10 and the front cover 20 are such that the lower edge 12c of the front plate portion 12 is fitted into the fitting recess 23c of the front cover 20, and the latch head 13a projects from the latch opening 21 of the front cover 20. In this state, it is temporarily fixed (temporarily combined). The front cover 20 and the front plate 12 are aligned at the center by the latch head 13a projecting from the latch opening 21 of the front cover 20, so that the lower end is fitted and aligned, so that the upper screw is The holes 12b and 22 polymerize without slipping.

  The fitting between the fitting portion 31 and the fitting receiving portion 32 may be performed by, for example, a procedure as shown in FIG. That is, the front cover 20 and the latch case 10 are overlapped with the latch head 13a immersed in the latch case main body 11 so that the latch case 10 is located above, and the front cover 20 is slid upward. Thereby, both members can be combined in a temporarily fixed state. Of course, both members can be connected by sliding from the side.

  In order to make the unification between the front cover 20 and the latch case 10 stronger, it is desirable that the protruding portion 23b of the fitting piece 23 has a large amount of protrusion (formed long along the cover body 25). Even if the protruding piece 23b is long as described above, the front cover 20 and the latch case 10 can be combined by a sliding operation, so that there is no possibility that the combination is difficult to be performed.

  The thus assembled latch case set A can be incorporated into the door body 2 as it is, as shown in FIG. A housing recess 3 in which a front recess 3a in which the polymer of the front cover 20 and the front plate portion 12 is disposed and a body housing recess 3b in which the latch case body 11 is housed communicate with the door surface of the door body 2. Is formed. In addition, a concave step 3c for accommodating the protruding piece 23b of the fitting piece 23 is formed below the front recess 3a.

  The united latch case set A may be mounted in the housing recess 3 from the door end side of the door body 2. Then, by inserting the screw 9 into the screw holes 12b and 22 that have been superimposed and fixing the screw 9 to the door body 2, the two members constituting the latch case set A are fixed to each other.

  Although the lower part of the front cover 20 and the front plate part 12 is not screwed to the door body 2, the latch case body 11 is fixed by passing the connecting shaft 6 a of the handle 6 therethrough. The fixed front plate portion 12 is also fixed. When the front plate portion 12 is fixed, the front cover 20 in a state where the lower edge portion 12c is sandwiched by the fitting concave portion 23c is also fixed.

  With such a configuration, according to the present latch case set A, the screw 9 of the latch case set A to the door body 2 may be fixed at only one place. As described above, if the screw holes 22 and 12b are provided only in one place, the positioning of the screw holes 22 and 12b between the front cover 20 and the front plate portion 12 can be easily performed, and the fitting portion 31 is fitted. The two members can be temporarily fixed by fitting with the receiving portion 32. Then, the latch case set A that has been aligned and united can be easily fixed to the door main body 2, and as a result, the door 1 can be efficiently produced. The screw 9 may be fixed to the lower part of the front cover 20. Further, the front cover 20 and the front plate portion 12 may be configured to be fitted on the upper side and fixed with screws 9 on the lower side.

  In the present embodiment, the fitting recess 23c is formed at the lower end of the front cover 20, and the edge 12c at the lower end of the front plate portion 12 is sandwiched between the fitting recesses 23c. Alternatively, a notch may be formed, and the edge may be sandwiched by the fitting recess 23c of the fitting piece 23 formed on the back surface of the front cover 20. Further, a configuration may be employed in which a fitting recess 23c is provided at an end in the width direction of the front cover 20.

  In the above embodiment, the front cover 20 and the front plate portion 12 are configured such that both members can be temporarily fixed by sandwiching the front plate portion 12 by the fitting concave portion 23c at the lower portion. It may be configured to be temporarily fixed by fitting in the door width direction between the front and back. That is, a projection (fitting portion 31) is provided on one of the overlapping surfaces between the front cover 20 and the front plate portion 12, and a concave portion (fitting receiving portion 32) is provided on the other of the overlapping surfaces. In this case, the front cover 20 and the front plate 12 may be combined. In this case, it is preferable that the projections are fitted into the recesses by press-fitting so that the projections cannot be easily separated after being assembled to the door body 2.

  Next, the door 1 to which the latch case set A is assembled will be described. As shown in FIG. 4, the door 1 is formed by attaching a latch case set A to a door body 2, and further attaching a handle 6 and a locking / unlocking member 7.

  The handle 6 is provided on both sides in the door thickness direction of the door end side end of the door body 2 and is operated when the latch head 13a of the latch member 13 is immersed. The connection shaft 6a of one handle 6 is formed in a square pillar shape, and the fitting recess 6b of the other handle 6 is formed in a square hole shape corresponding to the connection shaft 6a and having a substantially square shape when viewed in the door thickness direction. Have been. These handles 6 are inserted into the shaft insertion holes 11c of the latch case 10 through the handle mounting openings 4 of the door body 2, and the shaft fitting recesses of the other handle 6 through the other handle mounting openings (not shown). The connecting shaft 6a is fitted into the connecting shaft 6b.

  The door body 2 has locking / unlocking member mounting openings 5 (one not shown in FIG. 4) for attaching locking / unlocking members 7 (one is not shown in FIG. 4) on both sides in the door thickness direction. It is provided so as to communicate with each other and to open on both sides in the door thickness direction.

  The fixing of the latch case set A to the door body 2 by the screws 9 is desirably performed after the latch case set A is mounted in the accommodation recess 3 and the handle 6 and the locking / unlocking member 7 are attached.

DESCRIPTION OF SYMBOLS 1 Door 2 Door main body 9 Screw A Latch case set 10 Latch case 12b Screw hole 12c (Lower end) edge 13 Latch member 13a Latch head 20 Front cover 22 Cover side screw hole 23 Fitting piece 23a Extension piece 23b Projecting piece 23c Fitting recess 25 Cover body 31 Fitting part 32 Fitting receiving part

Claims (4)

A latch case having a latch mechanism for a door, and a substantially flat front cover which is disposed so as to overlap a front side of a front plate portion of the latch case, wherein the front cover is provided on the front plate with respect to a door body. In the latch case set that is made to be fixed with screws through the part,
A latch case set, wherein a fitting portion is formed on one of the front cover and the front plate portion, and a fitting receiving portion for fitting with the fitting portion is formed on the other. In claim 1,
The fitting portion may be an edge portion of the front plate portion, and the fitting receiving portion may be a fitting concave portion disposed on the back side of the front plate portion and sandwiching the edge portion. And latch case set. In claim 1 or 2,
The latch case set, wherein the fitting receiving portion is disposed on one of upper and lower ends of the front cover, and a screw hole is formed on the other side. A door provided with the latch case set according to claim 1.

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