JP2013147921A - Drawer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce costs when preparing a plurality of types excellent in assembling workability and different in height and width.SOLUTION: A base 8 is undisplaceably arranged between front and back plates 4 and 5, and interlocking members 12 and 13, an upper door pull 10 and a latch claw 11 are incorporated into the base 8. Since the latch claw 11 is unitized by using the base 8 as a core, assembly can be easily performed, and high assembly accuracy can be secured. Since the base 8 comprises right and left unit bases 8' and 8'', partial cutting can cope with the case of a slim-type drawer. Preferably, a mark line such as a V-notch 8e is provided in the case of the cutting.

Description

  The present invention relates to a drawer provided with a latch device.

  The drawer latch device basically has a pull handle that is operated by a person, a latch claw that engages with an engagement portion provided on the inner side of the furniture body, and an interlock that makes the latch claw free by the movement of the pull handle. Various proposals have been made for each member.

  Usually, the handle is of a pivot type and is often provided in a pull hole formed in the front plate (end plate) of the drawer body. It is disclosed that a vertically long handle is disposed on the back side.

  In the case of steel drawers, the front end of the drawer body is mostly constructed in a hollow structure with a front plate and a back plate, and the interlocking member is built in the hollow part between the front plate and the back plate. ing. There are various ways to attach a member such as a handle to which part of the drawer body. In Patent Document 1, each member is attached to the front plate (front plate). Since the back plate often serves as a cover, it can be said that the members constituting the latch device are generally attached to the back surface of the front plate by welding or the like and attached via brackets.

JP 2006-291573 A

  Now, the front plate and back plate are indispensable as components of the drawer. Therefore, it seems reasonable to attach the latch device using these front and back plates, but it takes a lot of work and assembly. In addition, the members cannot be shared by a plurality of types of drawers having different heights and widths, so that there is a concern that the cost may increase when viewed as a whole drawer group.

  The present invention has been made in view of such a current situation, and aims to improve workability and assembly workability, and to improve adaptability to differences in specifications such as width.

  The drawer according to the present invention has a drawer body mounted on the furniture body so as to be movable back and forth, and a latch device for holding the drawer body in a state of being housed in the furniture body, and a front end of the drawer body The latching device includes a latch claw that engages with an engaging portion of the furniture body by a pushing movement of the drawer body, and a handle operated by a person. And an interlocking member that changes the latch pawl to a free state that can be detached from the engaging portion in conjunction with the movement of the pull handle, and the latch pawl, the pull handle, and the interlock member are connected to the front plate. It has a basic configuration in which it is attached to a base disposed in a hollow portion between the back plate.

  And in invention of Claim 1, in the said basic composition, the said base consists of the unit base isolate | separated into right and left, The connection means which connects these unit bases to the adjacent unit base so that left-right displacement is impossible, Front / rear position holding means for holding the front and back plates so as not to move back and forth is provided.

  The present invention can be developed in various ways. The invention according to claim 2 is the invention according to claim 2, in which the base is composed of left and right unit bases, and the left and right unit bases extend in the left-right direction in front of or behind the left and right unit bases. Is provided with a bearing portion that fits rotatably.

  The invention of claim 3 is the invention according to claim 1, wherein the back surface of each unit base overlaps the back plate, and the unit base projects toward the front plate as the front-rear position holding means. The foot is provided. Further, the invention of claim 4 is any one of claims 1 to 3, wherein the base comprises two left and right unit bases, and the lengths after connection are changed in a plurality of stages to the left and right unit bases. Adjustment means is provided to enable this.

  According to the present invention, since the latch device is incorporated in the base, the labor of processing the front plate and the back plate can be reduced. Further, since the latch device is unitized, it is possible to easily assemble the drawer, and to suppress a variation in the attachment of the members and to ensure high accuracy. Furthermore, since one type of latch device can be shared by a plurality of types of drawers having different heights and widths, for example, when assembling a plurality of types of drawer groups, the cost of the entire product group can be reduced.

  Now, although the base of the present invention can adopt a resin molded product, the resin product may be difficult to obtain high dimensional accuracy due to shrinkage and sink marks after molding. In this regard, in the present invention, since the base is composed of a plurality of unit bases, there is an advantage that the interlocking member can be accurately positioned by shifting the relative position of the member even if the base has a large overall size. . Even if the interlocking member has a processing error or an assembly error, it is possible to absorb the processing error or the assembly error of the interlocking member by shifting the relative positions of the members constituting the base. Note that when the members are partially overlapped with each other, there is an advantage that the solidity is improved as a whole and the robustness can be improved.

  If the structure of Claim 2 is employ | adopted, since the interlocking member also plays the role of the connection member of a left-right unit base, the integrity of a left-right unit base can be improved. As the front / rear position holding means, for example, a rib (wall) may be provided around the unit base and this wall may be applied to the front plate or the back plate. Employing the foot portion has an advantage that it can accurately prevent back and forth displacement without interfering with the movement of the interlocking member.

  If the structure of Claim 4 is employ | adopted, since one set of unit bases can be shared by drawers with which right-and-left width differs, cost can be suppressed in preparing several types of drawer with different left-right width.

It is a perspective view of a wagon provided with a drawer concerning an embodiment. (A) is the isolation | separation perspective view of drawer | drawer, (B) is the fragmentary perspective view of the front part of drawer | drawer. It is the isolation | separation perspective view of the whole drawer | drawer. (A) (B) is the perspective view which looked at the principal part from back. It is the partial separation perspective view which looked at the principal part from back. It is the isolation | separation perspective view which looked at the principal part from back. (A) is the isolation | separation perspective view which shows the relationship between a base and a 1st interlocking member, (B) is a fragmentary perspective view in the state which isolate | separated the backplate. (A) is a perspective view in a state where a front plate is omitted, and (B) is a partial perspective view in a state where a back plate is separated. It is a perspective view which shows the relationship between a handle, an interlocking member, and a latch claw. (A) is a perspective view in a state where the lock is separated, and (B) is a sectional view taken along the line XXVII-XXVII in FIG. It is a plane sectional view of the location of a latch claw. It is XXIX-XXIX sectional view taken on the line of FIG. It is a perspective view which shows the relationship between a side pull, a latch nail | claw, and a 1st interlocking member. It is a figure which shows the relationship between a side pull, a latch nail | claw, and a 1st interlocking member, (A) is a perspective view, (B) is a separate top view. It is a perspective view which shows the attachment structure of a latch nail | claw. It is the perspective view which looked at the slim type drawer from back. It is a separation top view for explaining a slim type drawer. It is the perspective view which looked at the base corresponding to a slim type from back. It is the partial separation perspective view which looked at the base corresponding to a slim type from the front. It is the perspective view which looked at the base corresponding to a slim type from the front. FIG. 21 is a sectional view taken along line XXI-XXI in FIG. 20.

  Next, an embodiment of the present invention will be described with reference to the drawings. The present embodiment is applied to a wagon drawer as an example of furniture. In the following description, the words “front and rear” and “left and right” are used to specify the direction, which is based on the state of the wagon as viewed from the front.

(1). Outline of drawer The wagon of this embodiment can be placed inside a desk, for example, and includes a wagon body 1 that opens forward and three-stage drawers 2 and 2 'mounted in the interior thereof so as to be movable back and forth. , 2 ″. Of the three drawers 2, 2 ′, 2 ″, the upper drawer 2 has the smallest height, and the lower drawer 2 ″ has the largest height, and the middle drawer 2 ′. The cylinder lock 17 is provided on the right side of the upper drawer 2 and the keyhole is exposed to the front.The dial lock 17 'is placed on the middle drawer 2'. Provided.

  Each drawer 2 is supported by a suspension rail device (not shown) on an inner plate constituting the wagon body 2 so as to be movable back and forth. Needless to say, the wagon and drawer are square when viewed from the front. First, an outline of the drawer will be described.

  For example, as shown in FIG. 2, the drawer includes a storage box 3 having a bottom plate 3a, left and right side plates 3b, and a back plate (not shown), and a front plate (end plate) 4 and a back plate 5 provided at the front end thereof. It has as a main member, and the drawer body is composed of these three members. A rail member 7 is attached to the outer surface of the side plate 3 b in the storage box body 3. The storage box 3 and the front plate 4 are made of steel, but the back plate 5 is a resin molded product. Of course, the back plate 4 can be made of steel or the front plate 4 can be made of resin.

  For example, as can be understood from FIGS. 2, 3, 8 (B), the front plate 4 has wall plates 4 a, 4 b, 4 c around the four sides and is formed in a shallow box shape opened rearward, while the back plate No. 5 is formed in a shallow box shape having a forward opening having wall plates 5a, 5b, 5c around the four sides, and both are fitted so as not to be detached. And between the front board 4 and the back board 5 is a hollow part, The base 8 of the front view square is arrange | positioned in this hollow part.

  For example, as shown in FIG. 2, the base 8 is formed in the shape of a shallow tray having walls 8a, 8b, and 8c on four sides, and is disposed inside the back plate 5 in a state of opening forward. The base 8 has left and right side handles 9 that can be pulled by applying fingers from the left and right side portions of the front plate 4, an upper handle 10 that can be operated by applying fingers from the upper portions of the front plate 4, and the wagon body. 1 and a second interlocking member 13 that attach the latching pawl 11 to a free state by pulling operation of one of the pullers 9 and 10 are attached.

  The latch device is configured with the pull handles 9 and 10, the latch claw 11, and the interlocking members 12 and 13 as components. The latch claw 11 is attached to the left side portion of the base 8. The upper puller 10 is provided only in the upper drawer 2, and only the side pullers 9 are provided in the middle and lower drawers 2 ′ and 2 ″.

  The second interlocking member 13 functions as a stopper that keeps the latch claw 11 engaged with the wagon body 1, and the stopper function of the second interlocking member 13 is released by the movement of the first interlocking member 12. . Therefore, the second interlocking member 13 can be called a stopper, and the first interlocking member 12 can be called a relay member.

(2). Drawer body Next, each part will be described in detail. First, the drawer body will be described. For example, as can be easily understood from FIG. 3, the left and right side walls 5b of the back plate 5 have a stepped portion 5b 'shifted inward, and the front portion of the storage box 3 is located at the stepped portion 5b'. It fits from behind. The storage box 3 is held so as not to be detached from the back plate 5. Therefore, the back plate 5 has a protruding portion 5 d exposed on the left and right outer sides of the storage box 3.

  Further, as clearly shown in FIG. 12, an upright standing piece 5e is provided at the front end of the upper wall 5a of the back plate 5, while the upper portion of the front plate 4 is hollow by providing a hanging piece 4d on the upper wall 4a. The upright piece 5e of the back plate 5 is fitted into the inside thereof. The lower wall 5 c of the back plate 5 is in contact with the back surface of the front plate 4. In the upper wall 5 a of the back plate 5, an escape hole 14 for allowing the upper handle 10 to be attached is opened. The escape holes 14 are arranged on both the left and right sides of the center line, and are left and right horizontally elongated square holes.

  For example, as shown in FIG. 3, the left and right outer portions of the storage box 3 of the back plate 5 are the stepped portions 5b 'described above, and a side puller is placed on the side wall 5b at the outer end of the stepped portion 5b'. In order to allow attachment and movement of 9, a slit 15 with a forward opening is formed. The slit hole 15 has a shape that is long in the vertical direction.

  As shown in FIG. 4, a window hole 16 a through which a lock 17 is passed is formed in the right step wall connecting the rear surface of the back plate 5 and the right stepped portion 5 b ′. On the other hand, as shown in FIG. 7B, a relief hole 18 communicating with the stepped portion 5d and the step wall 5b 'is formed in the left side portion of the back plate 5. From the relief hole 18, a latch claw is formed. 11 is exposed.

(3). Base Next, the details of each part will be described. First, details of the base 8 will be described. 5 and 7, the base 8 is composed of left and right unit bases 8 'and 8 ", and a latch claw 11 is attached to the left unit base 8'. The right side of the left unit base 8 '. The portion 51 and the left side portion 52 of the right unit base 8 ″ are overlapping portions. In other words, the right unit base 8 ″ is fitted to the left side portion 52 of the right unit base 8 ″ so as to cover the right side portion 51 of the left unit base 8 ′. Both the left and right unit bases 8 ′ and 8 ″ are resin molded products.

  A pair of left and right positioning pins 53 are provided on the upper surface of the left side portion 52 of the right unit base 8 ″, while a positioning hole 54 into which the positioning pins 53 are fitted is provided in the right side portion 51 of the left unit base 8 ′. The positioning pin 53 and the positioning hole 54 constitute the connecting means described in the claims.

  As can be understood from FIG. 3, the right side 51 of the left unit base 8 ′ and the left side 52 of the right unit base 8 ″ also overlap with the bottom walls 51 c, 52 c. A front and rear longitudinal protrusion (not shown) protrudes downward from the 8 ″ bottom wall 52c, and a groove 55 into which the protrusion fits is formed in the bottom wall 51c of the right side portion 51. Therefore, the protrusion and the groove 55 also constitute a connecting means.

  For example, as shown in FIG. 5, an inner protrusion 56 and an outer protrusion 57 project from the upper surfaces of the left unit base 8 ′ and the right unit base 8 ″ constituting the base 8. These protrusions 56, 57 are provided. Is fitted in holes 58 and 59 provided in the upper wall 5a of the back plate 5. The base 8 is held firmly on the back plate 5 by the fitting of the projections 56 and 57 and the holes 58 and 59. The outer protrusion 57 protrudes greatly from the back plate 5 and is set so as to contact or be in close contact with a stopper plate 61 provided on the lower surface of the upper keratin 60 in the wagon body 1 as shown in FIG. The upper drawer 2 is held in a state where the upper drawer 2 is pushed into the wagon body 1 and does not rattle up and down.

  In addition, as shown with a dashed-dotted line in FIG. 12, the raising / lowering top plate 1a can be attached to the wagon main body 1. FIG. Needless to say, even when the liftable top plate 1a is attached, a space for a person to put his / her finger on the upper handle 10 is vacant above the upper handle 10.

  For example, as shown in FIG. 7, at the outer ends of the left and right unit bases 8 ′, 8 ″ constituting the base 8, a foot 8d that is in contact with or close to the front plate 4 is provided. By stretching against the front plate 4, the base 8 is held in a state free from back and forth.

  A desk (table) wagon is generally set to a width of about 400 mm, but a slim type having a width smaller than that can also be used. 1 to 15 are applied to a drawer of a standard type wagon having a width of about 400 mm. The pair of unit bases 8 ′ and 8 ″ are partially cut off, and can be used for drawing out a slim wagon.

  Therefore, as the adjusting means described in the claims, first, as shown in FIG. 4, for example, V notches 8e that clearly indicate the cutting positions are formed on the back and top surfaces of the left and right unit bases 8 'and 8' '. Further, as shown in FIG. 7, the positioning ribs 19 for restricting the left and right positions of the connection plate (not shown) and the connection plate cannot be moved forward on the bottom plate 8c of the left and right unit bases 8 'and 8' '. The lower engaging claws 20a are formed on the left and right unit bases 8 'and 8' ', and the positioning projections 21 are formed in the upper and lower middle positions of the left and right unit bases 8' and 8 ''. As shown in FIG. 10, an upper stopper 22 for restricting the upper end of the connecting plate and an upper engaging claw for holding the connecting plate at the upper end so as not to move forward as shown in FIG. 20b.

(4) Latch claw Next, the latch device will be described. First, the latch claw 11 will be described with reference to FIGS. As clearly shown in FIG. 9C, the latch claw 11 includes a base portion 23 extending in the left-right direction in a posture crossing the left side wall 8b of the base 8, and a plane protruding backward from the left outer end portion of the base portion 23. It has an L-shaped claw portion 24 and a stopper portion 25 that protrudes backward from the right inner end portion of the base portion 23. Therefore, the latch claw 11 has a U-shaped configuration with a rearward opening in plan view. As shown in FIG. 11, the base 8 is disposed so as to straddle the left side wall 8 b.

  The engaging surface (front surface) 24a of the claw portion 24 of the latch claw 11 is in a posture extending in the left-right direction. On the other hand, the rear surface of the engagement surface 24a is an inclined surface 24b that shifts backward as it approaches the base 23 side. Moreover, the stopper part 25 has a dogleg shape.

  As shown in FIG. 15B, the latch claw 11 is attached to a holder portion 26 provided integrally with the left side portion of the base 8. The holder portion 26 has a U-shaped sideways in a rear view so as to surround the latch claw 11 from above and below and from the inside. The latch claw 11 has a vertically long pin on a portion of the holder portion 26 that protrudes outside the base 8. 27. The pin hole of the holder portion 26 is a long and narrow elongated hole 28 (see FIG. 14B). Therefore, the latch claw 11 can slide to the left and right without changing its posture, and is horizontal with the pin 27 as the center. Can rotate.

  For example, as shown in FIG. 15, a U-shaped holding member 29 is fitted into the claw portion 24 of the latch claw 11 from the inside, and between the holding member 29 and the left side wall 8 b of the base 8. A spring (compression coil spring) 30 is disposed on the surface (see FIG. 11). Therefore, the latch claw 11 is urged to the left outer side by the spring 30. The holding member 29 is made of a resin having a small coefficient of friction and high durability (for example, POM resin or nylon resin), and therefore can also be called a slider. Further, the holding member 29 and the left side wall 8b of the base 8 are provided with spring receiving protrusions that hold the spring 30 so as not to be displaced.

  As shown in FIG. 15A, an upward guide pin 70 protrudes from the base end portion of the latch claw 11 and is provided on the base 8 as shown in FIGS. 15A and 14B. A guide groove 71 into which the guide pin 70 is fitted is formed on the upper surface plate of the holder portion 26 to accurately guide the movement of the latch claw 11.

  The guide groove 71 includes a slide guide portion 71a that is parallel to the long hole 29 provided in the holder portion 26, and an arcuate rotation guide portion that guides the latch claw 11 from rotating horizontally from the fully engaged position. 71b, and both communicate with each other. Due to the guide action of the guide pin 70 by the guide groove 71, the latch claw 11 only rotates when the drawer 2 moves forward, and smoothly slides and kicks when pushed.

  For example, as shown in FIG. 11, the collar 23 a provided at the end of the base 23 constituting the latch claw 11 and the collar 13 e provided at the tip of the stopper 13 b of the second interlocking member 13 are set to mesh with each other. doing. Therefore, the forward movement position of the latch claw 11 in the engagement maintaining posture is restricted.

(5). First interlocking member / second interlocking member As can be understood from FIG. 9, for example, the first interlocking member 12 is a sheet metal processed product and extends in the left-right direction. As clearly shown in FIG. The base portion 12a has a substantially vertical posture, a backward-opening U-shaped passive portion 12b provided at the upper end of the base portion 12a, and a drive portion 12c protruding forward from the lower end of the base portion 12a. The passive portion 13c of the second interlocking member 13 overlaps with the left end portion of the driving portion 12c from above.

  As clearly shown in FIG. 7, notches 66 are formed at both left and right ends of the base portion 12 b of the first interlocking member 12, and a third bearing 67 into which the support shaft 64 is fitted is formed in the base 8. ing. The third bearing 67 has a circular hole that is not a slit-opening method, and inclined surfaces for guiding the support shaft 64 are formed on the opposing surfaces of the two third bearings 67.

  For example, as shown in FIG. 15, a boss-like support shaft 36 is integrally provided on the right side of the holder portion 26 in the bottom surface of the base 8, and the second interlocking member 13 is rotatably attached to the support shaft 36. . That is, the second interlocking member 13 includes a cylindrical portion 13a that fits on the support shaft 36, a substantially horizontal posture stopper portion 13b that extends behind the base portion 23 of the latch claw 11, and a passive portion 13c that extends on the opposite side of the stopper portion 13b. And is held by a support shaft 36 so as to be able to rotate about an axis extending in the front-rear direction.

  And when the stopper part 13b of the 2nd interlocking member 13 is the attitude | position located behind the base part of the latch claw 11, while the latch claw 11 is hold | maintained in the engagement maintenance state which cannot be horizontally rotated, the 2nd interlocking member When 13 is in a free posture in which the stopper portion 13b is moved downward, the latch claw 11 is also in a free state in which it can rotate in the disengagement direction.

  The first bearing 37 has a circular bearing hole and a forward opening groove 37a having a width slightly larger than the plate thickness of the first interlocking member 12. As shown in FIG. When the support shaft portion 12d is fitted to the first bearing 37 with the posture of the base 12c toward the bottom surface of the base 8, and then the base portion 12a is rotated so as to be in the vertical posture, the support shaft portion 12d is rotated by the first bearing 37. It is held movable and unremovable. Since the support shaft portion 12d is narrow, the first interlocking member 12 is held by the left and right first bearings 37 so as not to be laterally displaced.

(6). Pulling As shown in FIG. 6, for example, the upper pulling 10 has a finger hanging part 10a and a pair of left and right foot parts 10b protruding downward from the finger hanging part 10a. The upper and lower halfway height parts are rotatably connected to a pair of left and right second bearings 38 and 39 provided on the base 8. The lower end of the foot 10b is in contact with or close to the passive portion 12b of the first interlocking member 12 from the front.

  The support shaft 41 is fitted into a notch 62 provided on the side surface of the foot portion 10 b of the upper puller 10, and the support shaft 41 is fitted into the second bearings 38 and 39. The support shaft 41 is formed in a bifurcated shape, fits into the notch 62, and sandwiches the foot 10b. Since the drawer constituting the base 8 and the right unit base 8 ″ can move somewhat relative to each other, even if there is a processing error or an assembly error in the upper puller 10, these errors are absorbed and the upper puller 10 is lightened. It can be mounted in a rotating state.

  The support shafts 41 provided on the left and right foot portions of the upper puller 10 are fitted and mounted on the second bearings 38 and 39 by pushing from above, whereby the upper puller 10 is rotated around the axis of the support shaft 41 that is long in the left-right direction. It can be rotated back and forth. In this case, positioning (leading) is facilitated by opening the inner second bearing 38 upward. The support shaft 41 is made of a resin having a small friction coefficient and excellent durability.

  The upper puller 10 is attached in the final step of assembling the drawer 2. That is, after the steps of attaching the base 8 to the back plate 5 and connecting the storage box 3 to the back plate 5 and the front plate 4, the foot 10 b is inserted into the escape hole 14, and the second bearings 38 and 39 are inserted. Although it is performed by the procedure of fitting, as in this embodiment, if one of the inner and outer second bearings 38, 39 is opened upward, the other is a circular hole and has an inclined surface 39a. The support shaft 41 can be easily fitted into the inner and outer second bearings 38 and 39 simply by pushing downward. And since the bearing hole of the 2nd bearing 39 located in the outer side is a simple circular shape, even if it pulls upwards, the upper handle 10 does not come off.

  As clearly shown in FIG. 12, the finger hooking portion 10 a of the upper puller 10 is located on the back side of the drooping piece 4 d provided on the upper wall 4 a of the front plate 4 (that is, the upper puller 10 is an upper portion of the front plate 4. Is located on the back side.) Further, a forward rib 10c is provided at the lower end of the finger hooking portion 10a of the upper puller 10, and the forward rotation angle of the upper puller 10 is restricted by applying the forward rib 10c to the upper wall 5a of the back plate 5. can do. That is, the forward rib 10c can function as a rotation restricting stopper.

  For example, as shown in FIG. 13, the side puller 9 has a vertically long finger-hanging portion 9 a and a substrate 9 b extending inward from the finger-holding portion 9 a in the left-right inward direction. While being rotatably attached to the pair of upper and lower third bearings 43 provided, as shown in FIG. 13B, the end portion of the substrate 9b contacts the passive portion 12b of the first interlocking member 12 from the front. Close or close.

  Therefore, when a fingertip is pulled on the finger hooking portion 9a of the side puller 9, the passive portion 12b of the first interlocking member 12 is pushed backward at the inner end portion of the substrate 9b, whereby the first interlocking member 12 is supported by the support portion 12d. Then, as described above, the second interlocking member 13 shifts to a free posture in which the stopper portion 13b is moved downward.

  As shown in FIG. 9, a pair of upper and lower support shafts 45 are attached to the left and right middle portions of the substrate 9 b of the side puller 9 by the same means as the upper puller 10, and a pair of upper and lower support shafts 45 are provided on the base 8. The third bearing 43 is fitted.

  As clearly shown in FIG. 10, the finger hooking portion 9 a of the side puller 9 is provided with a rearward protruding portion 9 c that hits the side wall 5 b of the back plate 5. For this reason, a person can obtain a soft touch. In addition, a forward rib 9 d located inside the back plate 5 is provided at the base of the substrate 9 b of the side handle 9. By making this forward rib 9d function as a stopper that hits the inner surface of the side wall 5b of the back plate 5, the side puller 9 can be held in a non-reversible manner. For example, as shown in FIG. 12B and FIG. 13, the board 9 b of the side handle 9 has a relief hole 9 f that allows the latch claw 11 to rotate.

  As can be understood from FIG. 12, the driving unit 12 c having a large weight in the first interlocking member 12 is disposed so as to be shifted forward from the rotation axis O, and the passive unit 12 b is also in front of the rotation axis O. It is shifted to the side. For this reason, the first interlocking member 12 is urged by its own weight so as to rotate the drive unit 12 c downward, and the rotation due to its own weight is restricted by the pullers 9 and 10. Therefore, the rotation operation of the first interlocking member 12 by the pullers 9 and 10 is performed against the weight of the first interlocking member 12, and when the person releases the finger from the pullers 9 and 10, the first interlocking member 12 is operated. And each handle 9 and 10 returns to an original position (engagement state holding attitude).

  Therefore, the spring for returning the pulling handles 9 and 10 and the interlocking members 12 and 13 to the original posture is unnecessary. In addition, according to the said structure, since the 1st interlocking member 12 is always contact | abutting with the upper puller 10 in the non-operation state, the initial loss at the time of pulling operation can be eliminated. Furthermore, according to the above configuration, as shown in FIG. 8, since the first interlocking member 12 always tries to rotate clockwise, the first interlocking member 12 rotates counterclockwise even when the drawer is suddenly closed. Therefore, it is difficult to assume a free posture in which the stopper portion 13b of the second interlocking member 13 is moved downward, and the certainty of the locked state of the latch can be improved.

  Of course, it is possible to provide a return spring. For example, as shown by a one-dot chain line in FIG. 14, it is possible to fit the torsion coil spring 47 into the cylindrical portion 13 a of the second interlocking member 13.

  For example, as shown in FIG. 13, the inner end of the side puller 9 is located on the left and right inner sides of the cylindrical portion 13 a of the second interlocking member 13. Therefore, the escape hole 9f of the side puller 9 is set to a size that allows the cylindrical portion 13a of the second interlocking member 13 to be fitted, and the passive portion 13c of the second interlocking member 13 is connected to the root of the cylindrical portion 13a. By forming the L shape in a plan view, a collision between the side puller 9 and the second interlocking member 13 is prevented. Note that the left and right side pullers 9 are of the same type, and are used by changing the vertical and horizontal postures.

  For example, as shown in FIG. 15, a base end portion of the cylindrical portion 13 a in the second interlocking member 13 is provided with a pair of protrusions 13 d that protrude in a direction orthogonal to the stopper portion 13 b and the passive portion 13 c, while the base 8 A pair of holding pieces 36a surrounding the projection 13d of the second interlocking member 13 is provided at the bottom of the second interlocking member 13, and the second interlocking member 13 is held so as not to be detached from the support shaft 36. The second interlocking member 13 is attached by a procedure of fitting into the support shaft 36 in a state where the protrusion 13d is rotated so as not to hit the holding piece 36a, and then rotating back to a predetermined posture. For example, as shown in FIG. 8, a downward portion 26 a for preventing the second interlocking member 13 from coming off is also provided in the holder portion 26 that holds the latch claw 11.

(7) Operation / Summary In a state where the drawer 2 is pushed into the wagon body 1 and the pullers 9 and 10 are not pulled, the stopper portion 13b of the second interlocking member 13 is the base 23 of the latch claw 11 as described above. Therefore, the latch claw 11 is held in a non-rotatable manner. On the other hand, as shown in FIG. 11, when a person puts his finger on the finger hooks 9 a, 10 a of any of the pullers 9, 10 and pulls forward, the first interlock member 12 and the second interlock member are moved by the movement of the pullers 9, 10. Then, the latch claw 11 is in a free state in which the claw portion 24 can be detached from the engagement hole 33 of the wagon body 1, so that the latch claw 11 is rotated and pulled out. Two forward movements are allowed.

  In the present embodiment, the latch claw 11 is not rotated to the free posture by the second interlocking member 13, but the restriction by the first interlocking member 13 is released and the latch pawl 11 is shifted to a free state in which the latch pawl 11 can be pivoted away. . Therefore, the latch claw 11 moves forward in a state where the tip of the claw portion 24 is in contact with the inner side surface of the wagon body 1, and returns to the original posture by the spring 30 at the same time as it is detached from the wagon body 1.

  When the drawer is pushed in, the inclined surface 24 b of the claw portion 24 of the latch claw 11 hits the front end surface of the wagon body 1. Then, the latch claw 11 moves backward along the long hole 28. That is, it slides inward without changing the posture in plan view. When the drawer 2 is fully pushed in, the latch claw 11 is moved forward by the spring 30 and the tip of the claw portion 24 is fitted into the engagement hole 33.

  As a means for fixing the base 8 to the back plate 5 or the front plate 4, for example, it is possible to fasten with a screw to a bracket portion welded or bent to the back plate 5 or the front plate 4, Employing the engaging means using the inner protrusion 56 and the outer protrusion 57 as in the present embodiment has an advantage that the attachment can be easily performed. It is also possible to provide a hole in the bottom plate (back plate) of the base 8, which makes it possible to reduce weight and cost. The base 8 can also be configured in a frame structure that is open at the front and rear.

  The material of the upper puller 10 and the side puller 9 is not limited, but a resin molded product can be used, or a light metal die-cast or extruded product such as aluminum can be used. When an extruded product is used, there is an advantage that the cost can be reduced because the extruded product may be cut according to the size of the drawer. However, since the extruded product is manufactured to have the same cross-sectional shape, it is necessary to add a process of partially cutting.

(8). Support for slim wagons As mentioned above, there are slim type drawers with a smaller width than normal products. FIG. 16 shows a part of the appearance. This slim type drawer can be dealt with by cutting the left and right unit bases 8 ', 8 ". That is, one type of base 8 can be used for both the standard type and the slim type.

  FIG. 17 shows the relationship of each member when corresponding to the slim type drawer S, and the left and right unit bases 8 'and 8' 'are cut and abutted at the above-described V notch 8e. In the standard type, the right and left unit bases 8 'and 8 "are fitted with the positioning pins 53 and the positioning holes 54. Therefore, when one positioning pin 53 is used as a reference, the right unit base 8" is cut by the dimension L1. Thus, the left unit base 8 'is cut by the dimension L2. Accordingly, the base 8, the front plate 4, the back plate 5, the upper handle 10 and the first interlocking member 12 are shortened in the left-right width by the dimension L of L1 + L2.

  The front plate 4, the back plate 5, the upper puller 10, and the first interlocking member 12 must be manufactured in conformity with the slim type drawer S, but the second interlocking member 13 and the latch claw 11 are standard types. The same thing is shared. FIG. 18 shows a state in which the unit bases 8 ′ and 8 ″ after excision are connected to each other.

  In the state corresponding to the slim type drawer, the left and right unit bases 8 ', 8 "are set on the back plate 5 with their end faces abutting each other, and then the connecting pad 68 is attached to the part surrounded by the left and right lower stoppers. Since the pair of left and right positioning holes 68 that fit into the positioning projections 21 are vacant in the connecting contact plate 68, the left and right unit bases 8 'and 8 "are held so that they cannot be separated from each other. Thus, the upper and lower ends of the connection pad 68 are moved behind the upper and lower engaging claws 20b and 20a.

  As a result, the connecting contact plate 68 is held so as not to move left and right by the left and right positioning ribs 19 and the positioning projections, while being held so as not to move up and down and forward and away from each other. The connecting plate 68 is held so as not to be vertically displaced by the upper and lower walls 8a and 8c of the unit bases 8 'and 8' '. Needless to say, the engaging claws 20a and 20b are connected to the connecting plate. The connection backing plate 68 is held so as not to move forward by being elastically deformed in the escape direction once by pushing in, and then returned to the front. As clearly shown in Fig. 21, the front surfaces of the unit bases 8 'and 8 "are the upper portions thereof. A forward stepped portion 8f is provided on the upper and lower portions so that the lower portion and the lower portion come into contact with the connection pad 68.

  The left and right unit bases 8 'and 8 "are sandwiched between the front plate 4 and the back plate 5 and are held so that they cannot be displaced forward and backward, so that the end surfaces are just abutted and connected via the connecting plate 68. Even so, the unit bases 8 ′ and 8 ″ can maintain unity.

(5). Others This embodiment can be embodied in various ways other than the above-described embodiment. For example, as the unit base connecting means, it is also possible to connect with a pin or the like as an expansion / contraction method for fitting the left and right unit bases in the left-right direction. In this case, it is possible to adapt to the standard type and the slim type without excision by enabling connection with a pin or the like in two states, an extended state and a contracted state.

  When the base is composed of three unit bases, the left and right unit bases, and the intermediate unit base located between them, it is possible to use only the right unit base without using the intermediate unit base when adapting to the slim type. is there. As the front-rear position holding means, it is possible to provide ribs on the upper and lower edges of the unit base. Alternatively, it is possible to project a boss on the substrate and bring the boss into contact with the front plate or the back plate. The base can be opened toward the back plate. In this case, the front / rear position holding means such as the foot may protrude backward.

  When adapting to the slim type by excising the unit base, it is also possible to provide rib plates that overlap each other when excised on the left and right unit bases, and fix these overlapping rib plates with fasteners such as screws or clips. .

  The application target is not limited to wagons, but can be applied to drawers of various furniture such as cabinets and desks. The shape of the handle, the interlocking member, and the latch claw can be variously embodied. For example, the present invention can also be applied to a structure in which a pull hole is formed in the front plate and a pull handle is arranged at the pull hole portion.

  The pulling handle is not limited to a pivoting type, and can be configured to be a front / rear sliding type. Moreover, when providing a handle close to the outer peripheral part of a front board like embodiment, it is also possible to arrange | position on the outer side of a front board just beside or right above. Furthermore, it is possible to provide the handle only in the vicinity of the upper end of the front plate, in the vicinity of the lower end of the front plate, or in the vicinity of the lower end and the left and right side portions.

  The present invention can actually be drawn out and embodied. Therefore, it can be used industrially.

1 Wagon body (furniture body)
2 Drawer 4 Front plate constituting the drawer body 5 Back plate constituting the drawer body 8 Base 8 ', 8 "Unit base 9 Side puller 10 Upper puller 11 Latch claw 12 First interlocking member 13 Second interlocking member 8d Holding back and forth position Foot (projection) as an example of means
8e V-notch as adjusting means 19 Positioning ribs 20a, 20b as adjusting means Engaging claws as adjusting means 21 Positioning protrusions as adjusting means 68 Connecting contact plate as adjusting means

Claims (4)

A drawer body mounted on the furniture body so as to be movable back and forth; and a latch device for holding the drawer body in a state of being housed in the furniture body,
While the front end of the drawer body is formed hollow between the front plate and the back plate,
The latch device includes a latch claw that engages with an engagement portion of the furniture body by a pushing movement of the drawer body, a pull that is operated by a person, and the latch claw that engages with the movement of the pull. And an interlocking member that changes to a free state that can be detached from the part, and these latch claws, a handle, and an interlocking member are attached to a base disposed in a hollow portion between the front plate and the back plate. Configuration,
The base is composed of a unit base separated into left and right, and is connected to adjacent unit bases so that the unit bases cannot be displaced to the left and right, and the front and back plates cannot be moved back and forth. Front and rear position holding means for
drawer. The base is composed of two left and right unit bases, and the left and right unit bases are provided with bearing portions in which interlocking members extending in the left and right directions are rotatably fitted in front of or behind the left and right unit bases.
A drawer according to claim 1. Each unit base has a back surface overlapping the back plate, and each unit base is provided with a foot portion projecting toward the front plate as the front-rear position holding means.
The drawer according to claim 1 or 2. The base is composed of two unit bases on the left and right sides, and the left and right unit bases are provided with adjusting means for changing the length after connection in a plurality of stages.
The drawer according to any one of claims 1 to 3.

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