JP2007218050A - Latch actuating mechanism for drawer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a latch actuating mechanism for a drawer, wherein an engaging part is reliably released at the same time as a pulling-out action of a pull handle while, in pulling out the drawer, a latch can be smoothly operated without having the latch actuating mechanism longer or more complicated even when an eccentric force is applied to the pull handle. <P>SOLUTION: The pull handle 5 of the drawer 2 has a laterally broad hand-hooking part 6 and a pair of sliding part 7 capable of sliding from both ends of the hand-hooking part toward a front plate 3. The latch actuating mechanism is composed of a first operating member 10 of a recessed shape when viewed from the front, whose upward pieces 11 at both ends are connected to an extension part extending backward from the sliding part 7 and wherein a horizontal piece 14 for connecting the bottom parts of the upward pieces 11 is arranged below an engaging part 49 and is axially fitted with a shaft 25 at its both ends in free tilting movement. The latch actuating mechanism also includes a second operating member 15 composed of a right- and a left-end parts 16 connected with the right and the left upward pieces 11 and a horizontal member 17 axially fitted with a slide shaft of a channel shape when viewed from the top. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention includes a handle for latch operation provided on the front surface of the drawer front plate, a slide shaft that slides back and forth in conjunction with the operation of the handle, and a direction perpendicular to the slide shaft in conjunction with the slide shaft. The present invention relates to a drawer latch operating mechanism having a sliding engagement portion and a latch device having a housing-side engaged portion that engages and disengages the engagement portion.

  A handle for latch operation provided on the front plate side of the drawer, an engaging portion that slides up and down in conjunction with the operation of the handle, and an engaged portion on the housing side that engages and disengages this engaging portion In a conventional drawer having a latch device provided, when pulling out the drawer, the handle for latching operation is first operated with a fingertip to disengage the engaging portion from the engaged portion, and the detached body is held. A configuration in which the drawer is configured to be pulled out to the near side is known (Patent Document 1). However, this conventional drawer has to be pulled out after operating the handle for latch operation with the fingertip, and the drawer operation is a two-stage operation, which is not convenient. Therefore, a mechanism that can release the latch by simply pulling out has been developed (Patent Document 2). This mechanism rotates the crankshaft when it is pulled out by holding the handle, and the rotation of the crankshaft activates the latch shaft to drive the latch provided on the side of the drawer. Is convenient.

JP 09-158582 A (paragraph 0028, FIGS. 3 and 4) Japanese Patent Laying-Open No. 2005-16223 (paragraphs 0032 and 0033, FIG. 3)

  However, in Patent Document 2, since the left and right sides of the wide left and right handle portions are provided with a pair of sliding portions extending rearwardly, a pair of sliding portions is applied when an eccentric force is applied to the handle. Since the parts do not move synchronously and the crankshaft may be twisted, it is necessary to provide a rod receiving member as a displacement prevention member across the longitudinal direction of the crankshaft so that the crankshaft rotates normally. There was a desire to avoid lengthening and complicating the latch operating mechanism.

  The present invention has been made paying attention to such a problem, and can engage and disengage the engaging portion in synchronization with the pulling-out action of the handle, and can be applied to the handle when pulling out the drawer. It is an object of the present invention to provide a drawer latch operating mechanism that can smoothly operate the latch without increasing the length and complexity of the latch operating mechanism even when an eccentric force is applied.

In order to solve the above-mentioned problem, a latch operation mechanism for a drawer according to claim 1 of the present invention comprises a handle for latch operation provided on the front surface of the front plate of the drawer, and a front / rear slide in conjunction with the operation of the handle. A latch device comprising: a slide shaft that moves; an engagement portion that slides in a direction perpendicular to the slide shaft in conjunction with the slide shaft; and an engaged portion on the housing side that engages and disengages the engagement portion; In the drawer latching mechanism having a drawer, the handle includes a left and right wide handle portion projecting forward of the front plate, and extending rearward from both left and right sides of the handle portion, and slides forward and backward with respect to the front plate. It is provided with a pair of movable sliding portions, and the operating means for operating the slide shaft by the handle has a concave shape in front view, and the left and right upward pieces are inserted from the front side of the front plate. An extension extending rearward from the pair of sliding portions And a horizontal piece connecting the lower portions of the left and right upward pieces is disposed at a position below the engagement portion, and tilted to the shaft portion protruding rearward from the rear surface of the front plate on the left and right sides thereof. A first actuating body that is freely mounted on the shaft, left and right end portions respectively connected to the left and right upward pieces, and a U-shaped slide shaft and shaft integrally formed with the left and right end portions It is characterized by comprising a second actuating body comprising a worn horizontal portion.
According to this feature, even when an eccentric force is applied to the handle, the upward pieces connected to the left and right rear extensions of the handle are connected by the horizontal piece, and the horizontal piece is left and right on the rear surface of the front plate. Since it is pivotably mounted on the axis, the left and right upward pieces can move synchronously, and the second operating body attached to the left and right upward pieces also moves synchronously on the left and right. The engaging portion can operate reliably and smoothly via the slide shaft. In addition, the latch operating mechanism, which is the operating mechanism of the engaging portion, is mainly composed of a combination of the first and second operating bodies disposed behind the front plate, and the latch operating mechanism is lengthened and complicated. It will not become.

A drawer latching mechanism according to a second aspect of the present invention is the drawer latching mechanism according to the first aspect, wherein the horizontal portion having a U-shape when viewed from above is opened on a rear surface of the front plate. It is characterized by being guided so as to be movable back and forth on the inner wall of the long hole.
According to this feature, the horizontal portion of the U-shape when viewed from above can be guided and moved by the inner wall of the long hole opened in the rear surface of the front plate, so that the movement of the second operating body is stable, and the operation of the handle The engaging portion operates reliably.

A drawer latch operating mechanism according to a third aspect of the present invention is the drawer latch operating mechanism according to the first or second aspect, wherein the engagement is provided in a space above the horizontal piece of the first operating body. It is characterized in that the box containing the joint is located.
According to this feature, the space in the vertical direction behind the front plate can be effectively used by positioning the box containing the engaging portion in the space above the horizontal piece of the first working body. it can.

A drawer latch operating mechanism according to a fourth aspect of the present invention is the drawer latch operating mechanism according to any one of the first to third aspects, wherein both the operating bodies are plate-shaped. .
According to this feature, since both the operating bodies are plate-shaped, the thickness in the front-rear direction of the latch operating mechanism that operates the slide shaft by the handle can be configured to be thin, and a wide space behind the front plate is formed in the operating means. Therefore, it is not necessary to provide for this.

A drawer latching mechanism according to claim 5 of the present invention is the drawer latching mechanism according to any one of claims 1 to 4, wherein the drawer is elastically deformable when the first actuating body is tilted. A body is provided on the shaft portion.
According to this feature, when the drawer is stored, the first operating body can be operated so that the engaging portion can be smoothly returned to the original engageable position by the elastic body.

  Examples of the present invention will be described below.

  FIG. 1 is a perspective view showing an entire image of a case in which a latch device is applied to a shelf board and a drawer in an embodiment of the present invention, and FIG. 2 is a rear view showing a central portion of a front panel of the drawer. 3 is an exploded perspective view, FIG. 3 is an exploded perspective view seen from the front side showing attachment of the first and second operating bodies, the fixing plate, and the engaging member, and FIG. 4 is a handle and cover. FIG. 5 is an exploded view of the case as viewed from the rear side, FIG. 5 is a partially broken plan view showing the center portion of the drawer front plate, and FIG. FIG. 6B is an enlarged side cross-sectional view of the main part showing the operating state of the first and second operating bodies by the handle operation of FIG. 6A. 7 (a) is an enlarged side cross-sectional view of the main part showing the BB cross-sectional line in FIG. 5, and FIG. 7 (b) is a cross-sectional view of FIG. 7 (a). The operation is an enlarged side sectional view showing the unlocking of the latching device.

  As shown in FIG. 1, the casing 1 is provided with drawers 2 in three upper and lower stages, and each drawer 2 is individually stored in a frame 4 that defines the interior of the casing. A front plate 3 is provided on the front surface of the drawer 2, and a handle 5 protrudes forward from the front plate 3 at a substantially central position of the front plate 3. Hereinafter, in the description of the present embodiment, when the casing 1 illustrated in FIG. 1 is faced, the drawer 2 of the drawer 2 is the front, the back side of the casing 1 is the rear, and the left-hand side is the left On the other hand, the right-hand side will be described as the right side.

  An engagement protrusion 49 corresponding to an engagement portion protruding upward is provided at a substantially central position on the back side of the front plate 3. The latch device 30 is constituted by a locking projection 92 corresponding to the engaged portion projecting downward, and the engagement projection 49 is engaged with the locking projection 92 when the drawer 2 is stored. As a result, the forward movement of the drawer 2 is restricted, and the engagement protrusion 49 is disengaged by operating the handle 5. The operation mechanism of the latch device 30 will be described later.

  As shown in FIG. 2, the handle 5 includes a left and right wide handle portion 6 that protrudes forward, and sliding portions 7 and 7 that extend from both ends of the handle portion 6 toward the rear. Bolt screw holes 7a and 7a facing forward are formed on the rear surfaces of the sliding portions 7 and 7, respectively. Corresponding to the sliding portions 7 and 7, bearing bushes 9 and 9 formed from a synthetic resin material are provided, and sliding holes 9a and 9a capable of sliding the sliding portions 7 and 7 are provided inside. While being formed, locking claws 9b, 9b are provided at the rear.

  At the upper center position of the rear surface of the front plate 3, a long hole 3b is opened in the left and right length direction, and the bushing 9 and 9 can be mounted close to the left and right ends of the long hole 3b. The holes 3a and 3a are penetrated in the front-rear direction. Three fixing plate mounting screw holes 3d are formed around the elongated hole 3b, and shaft screw screw holes 3e, 3e are formed at positions spaced below the bush mounting holes 3a, 3a, and further in the left-right direction. Case mounting screw screw holes 3c, 3c are formed at the spaced positions.

  Next, as shown in FIG. 2, the shape of the plate-like first operating body 10 formed of metal sheet metal is to connect the upward pieces 11 and 11 to the left and right and the lower portions of the upward pieces 11 and 11. Bolt through-holes 12 and 12 are formed in the upper portion of the upward pieces 11 and 11 into which the upper shaft bolts 27 and 27 corresponding to the extension parts can be inserted. Screw through holes 13 and 13 are formed through which a lower shaft screw 25 corresponding to the shaft portion can be inserted. The lower end portion 14a of the first operating body 10 is bent in an L shape toward the front. Upper cylindrical elastic bodies 28, 28 through which upper shaft bolts 27, 27 formed of elastic urethane, rubber or the like are inserted are arranged on the front surfaces of the bolt through holes 12, 12, and similarly, the screw through holes 13, Lower cylindrical elastic bodies 26 and 26 through which a lower shaft screw 25 is inserted are disposed between the front surface 13 and the front plate 3.

  The plate-like second working body 15 formed of metal sheet metal includes a horizontal portion 17 bent in a U-shape toward the front in a top view, and side end portions 16 provided at both the left and right portions of the horizontal portion 17. , 16 and is formed in a wide left and right width. A screw screw hole 17a into which the screw rod 63 can be screwed is formed at the center of the horizontal portion 17, and bolt through holes 16a, 16a into which the upper shaft bolts 27, 27 can be inserted are formed in the side end portions 16, 16. Is formed.

  As shown in FIGS. 2 and 3, concave grooves 21 and 21 are formed in the left and right positions of the plate-shaped fixing plate 20 formed of metal sheet metal, and side end pieces 22 and 22 are formed at both left and right positions. Is formed. The side end pieces 22 and 22 are formed with bolt through holes 22a and 22a through which the upper shaft bolts 27 and 27 can be inserted. Screw through holes 20 a, 20 a, 20 a are formed in the vicinity of the concave grooves 21, 21 and at the center lower part, and are used when attached to the front plate 3. A fitting hole 20d (see FIG. 3) is formed at the center upper position of the fixing plate 20, and screw holes 20b are formed at four places in the upper, lower, left and right directions around the fitting hole 20d.

  The locking device 33 is covered with a box body 34 whose front surface is open and a closing plate 78 that closes and fits the opening, and an engaging protrusion 49 projects upward from the top of the box body 34, An annular projecting body 82 projects from a substantially central position of 78 toward the front. A screw rod sliding hole 82 a into which the screw rod 63 can be inserted is formed in the annular protrusion 82. Mounting holes 34a are formed at the four corners of the box 34, and the four screws 24 are screwed into the four screw holes 20b from the rear via the mounting holes 34a, whereby the locking device 33 is mounted on the box 34. The annular projection 82 is fitted into the fitting hole 20d and is projected forward.

  Next, by fitting the second operating body 15 toward the concave grooves 21 and 21 of the fixing plate 20, the fitting process is not particularly shown, but the horizontal portion 17, the side end pieces 22, Side end portions 16, 16 are arranged behind 22. Therefore, the upward pieces 11 and 11 of the first working body 10 are inserted into the gaps between the side end pieces 22 and 22 and the side end portions 16 and 16, and the upward pieces 11 and 11 and the side end pieces 22 are further inserted. , 22 and the upper cylindrical elastic bodies 28, 28 are arranged from the rear to the front, and a pair of left and right bolt through holes 16a, 16a, bolt through holes 12, 12, upper cylindrical elastic bodies 28, 28, bolts After overlapping the through holes 22a and 22a in this order, the pair of left and right upper shaft bolts 27 and 27 are inserted and screwed into the bolt screw holes 7a of the handle 5.

  Next, after inserting the pair of left and right lower shaft screws 25, 25 toward the corresponding screw through holes 13 of the first operating body 10, the lower shaft screws 25 are inserted into the lower cylindrical elastic body 26 and screwed into the shaft screw screwing holes 3 e. Combine. Then, by inserting the screw rod 63 from the insertion hole 37 formed in the rear portion of the box body 34 toward the front screw rod sliding hole 82a, the second operation is performed via the fitting hole 20d of the fixing plate 20. It is screwed into the screw screw hole 17a of the body 15.

  Further, as shown in FIG. 2, the three fixing screws 23 are screwed into the three fixing plate mounting screw holes 3d through the corresponding screw through holes 20a of the fixing plate 20, respectively. 20 is fixed to the back surface of the front plate 3. At this time, the horizontal portion 17 of the second operating body 15 projecting forward is supported so as to be movable back and forth with respect to the elongated hole 3b of the front plate 3. Bearing bushes 9 and 9 are inserted into the front surface of the front plate 3 from the front toward the bush mounting holes 3a and 3a, and the engagement claws 9b are engaged with the engagement holes formed on the rear surface of the front plate 3 for attachment. The sliding portions 7 and 7 of the grip 5 are slidably guided in the sliding holes 9a and 9a of the bearing bushes 9 and 9, respectively.

  4 and 5, the sliding portions 7 and 7 of the handle 5 are slidably inserted into the sliding holes 9a and 9a of the bearing bushes 9 and 9, and then the upper shaft bolt. When 27 and 27 are screwed toward the bolt screw holes 7a and 7a, the upper portions of the upper pieces 11 and 11 of the first operating body 10 and the side end portions 16 and 16 of the second operating body 15 The upper cylindrical elastic bodies 28, 28 are held by upper shaft bolts 27, 27 extending rearward from the front plate 3, and are attached to lower shaft screws 25, 25 extending rearward from the front plate 3. The left and right ends of the horizontal piece 17 which is the lower part of the upward pieces 11 and 11 and the lower cylindrical elastic bodies 26 and 26 are held. The attachment position of the box 34 to the fixed plate 20 is in a space formed above the horizontal piece 14 and between the left and right upward pieces 11, 11 of the first operating body 10, and behind the front plate 3. Space is used without waste, and a large projecting rearward of the lock device 33 is avoided, thereby saving space.

  Further, the box-shaped cover case 31 opened forward is screwed and attached to the case mounting screw screw holes 3c and 3c via the screw through holes 31b and 31b by the case mounting screws 32 and 32, thereby fixing the fixing plate. 20, the first operating body 10, the second operating body 15, and the box 34 are shielded and protected from the outside. An opening 31a through which the engaging protrusion 49 can be inserted upward is formed at the upper center position of the cover case 31, and contact with the engaging protrusion 49 is avoided when the cover case 31 is attached.

  As shown in FIG. 6A, the mounting plate 91 provided with the locking protrusion 92 is fixed to the lower surface of the frame body 4 by screwing a pair of screws 94, 94 into the pair of screw holes 91a, 91a. Has been. The rear surface of the locking protrusion 92 is engaged with an engaging protrusion 49 protruding from the locking device 33 when locked, and the forward movement of the drawer 2 is restricted.

  As shown in FIG. 6B, when the handle 5 is operated forward from the handle portion 6, the sliding portion 7 is guided along the sliding hole 9a, and the upper shaft bolt 27 is also directed forward at the same time. While being moved, both end portions 16 of the second actuating body 15 are pulled forward by the bolt heads 27b of the upper shaft bolts 27, and the first actuating body 10 of the first actuating body 10 is synchronized with the both end portions 16. The upper portions of the upward pieces 11 and 11 are also drawn forward. By this drawing, the upper cylindrical elastic body 28 is gradually compressed and elastically deformed, and the lower cylindrical elastic body 26 is also elastically deformed. The actuating body 10 is tilted obliquely forward about the lower shaft screw 25 side.

  As the first operating body 10 is tilted, the second operating body 15 is moved forward, so that the engaging protrusion 49 moves downward and the engagement with the locking protrusion 92 is released. Thus, the drawer 2 can be pulled out forward. When the pulling operation to the front of the handle 5 is loosened or the hand is moved away from the handle portion 6, the first actuating body 10 and the second actuating body are applied by the urging force of the upper cylindrical elastic body 28 and the lower cylindrical elastic body 26. 15 is operated toward the rear, and the engagement protrusion 49 is returned to the original engageable position.

  Next, the structure and operation of the locking device 33 will be described. This is a well-known device as shown in, for example, Japanese Patent No. 2761201 “Door Locking Device”, and detailed description thereof will be omitted. As shown in FIG. 7 (a), a slider 46 slidable in the vertical direction is accommodated in the slider accommodating recess 35 of the box 34 closed by the closing plate 78, and is directed upward on this upper surface. An engaging projecting body 49 is formed to project. A spring 56 is interposed between the lower portion of the slider 46 and the box body 34, and the slider 46 is normally pushed upward by the urging force of the spring 56. And it protrudes through the guide port 36 formed in the upper part of the cover case 31, and the opening 31a, and is maintained in the state engaged with the latching protrusion 92 by the side of the frame 4. FIG.

  The slider 46 is formed with a storage chamber 47 that opens and communicates with the front and rear, and a cam body 60 having a substantially triangular shape in side view is provided in the storage chamber 47. A support shaft 61 extending in the left-right direction is extended from the cam body 60, and an engaging protrusion 62 is provided in the left-right direction. The support shaft 61 is inserted and supported by a bearing body 39 provided on the inner surface of the rear portion of the box body 34, and the cam body 60 is rotatable about the support shaft 61 as an axis. A slide shaft 59 is provided at a substantially intermediate position in the vertical direction of the storage chamber 47 in the front-rear direction, and a screw rod slide hole 82 a formed in the annular protrusion 82 of the closing plate 78 at the front portion of the slide shaft 59. Is slidable back and forth.

  An engagement recess 59a is formed in the rear portion of the slide shaft 59, and an engagement protrusion 62 of the cam body 60 is engaged in the engagement recess 59a. A screw rod 63 previously inserted through the insertion hole 37 at the rear of the box 34 is inserted into the slide shaft 59 in the front-rear direction, and the front end portion 63 a is a second operation that is an operation means of the slide shaft 59. The screw 15 is screwed into the screw hole 63a of the body 15 and fixed to the horizontal portion 17, and the slide head 59 is prevented from coming off from the screw rod 63 by the rear large-diameter head 63b.

  Therefore, as shown in FIG. 7B, when the handle 5 is pulled forward while gripping the handle portion 6, the first operation which is the operation means of the slide shaft 59 is performed via the upper shaft bolt 27. The body 10 is tilted forward, and the second operating body 15 is pulled out forward (see FIG. 6B). As a result, the slide shaft 59 also slides forward in accordance with the horizontal portion 17 moving toward the front of the long hole 3b, and the engagement protrusion 62 engaged with the engagement recess 59a is moved forward. . Then, the cam body 60 is gradually rotated around the support shaft 61 by the forward movement of the engaging protrusion 62, the slider 46 is pushed downward against the urging force of the spring 56, and the engaging protrusion 49 is moved to the slider. In addition to being housed in the housing recess 35, the engagement from the locking projection 92 is released, and the drawer 2 becomes unlocked and the drawer 2 can be pulled forward.

  Therefore, when the hand 2 is separated from the handle portion 6 in a state where the drawer 2 is pulled out from the frame body, the first actuating body 10 and the second actuating force are applied by the urging forces of the upper cylindrical elastic body 28 and the lower cylindrical elastic body 26. The body 15 is returned to the original position, and the slider 46 is pushed back upward by the urging force of the spring 56 in conjunction therewith, so that the engaging protrusion 49 is returned to a position where it can be engaged.

  Thereafter, when the handle 5 is pushed backward while gripping the handle 6, the engaging projection 49 comes into contact with the locking projection 92, and further pushed along the inclined surface 92 a of the engaging projection 49. The inclined surface 49 a of the engaging protrusion 49 moves downward while sliding, compressing the spring 56 and pushing down the slider 46. When the engaging protrusion 49 passes through the locking protrusion 92, the slider 46 is pushed up again by the urging force of the spring 56, and the engaging protrusion 49 is engaged with the locking protrusion 92 and pulled out. It becomes impossible. At this time, since the horizontal portion 17 is guided in the front-rear direction along the inner wall of the long hole 3 b, the movement of the second operating body 15 is performed stably, and the engaging protrusion is operated by operating the handle 5. 49 is reliably operated, and the engagement protrusion 49 is smoothly engaged with and disengaged from the locking protrusion 92.

  As described above, the latch operation mechanism that is the operation mechanism of the lock device 33 is mainly composed of a combination of the first and second operation bodies 10 and 15 disposed at the rear of the front plate 3, so that the mechanism is No increase in length or complexity. Further, by forming the first and second actuating bodies 10 and 15, which are actuating means for actuating the slide shaft 59 by the handle 5, in a plate shape, the thickness in the front-rear direction behind the front plate 3 can be made thinner. Therefore, it is not necessary to provide a wide space behind the front plate 3 for both the operating bodies 10 and 15, and this does not hinder the storage of articles and the like in the drawer 2.

  Further, even when an eccentric force is applied to the forward operation of the handle portion 6 extending to the left and right of the handle 5, the upward pieces 11 connected to the upper shaft bolts 27 and 27 that are the left and right rear extensions of the handle 5. , 11 are connected by a horizontal piece 14, and the horizontal piece 14 is pivotally mounted on the rear surface of the front plate 3 so as to be tiltable right and left (see FIG. 5). The second actuating body 15 pivotally attached to the left and right upward pieces 11 and 11 can also move synchronously in the left and right [see FIG. 6B], and is easy to move. The engaging protrusion 49, which is an engaging portion, is reliably and smoothly operated via the slide shaft 59 [see FIG. 7 (b)].

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. For example, in the above embodiment, since the second operating body 15 is guided along the long hole 3b of the front plate 3, the engagement projection 49 is preferably operated, but the present invention is not limited thereto. It is not limited, and the space for moving the second operating body 15 forward can be secured by extending the upper shaft bolt 27 and the lower shaft screw 25 rearward without forming the long hole 3b. .

  In the above-described embodiment, the upper and lower cylindrical elastic bodies 28 and 26 are provided at the four corners of the first operating body 10, so that the first urging force of both elastic bodies 28 and 26 is applied when the handle 5 is not operated. However, the present invention is not limited to this, and a configuration in which both elastic bodies 28 and 26 are not provided may be used, and the handle 5 is moved backward. You may make it provide the elastic body which pushes back toward another part.

It is a perspective view which shows the whole image of the housing | casing to which the latch apparatus was applied to the shelf board and drawer in the Example of this invention. It is the disassembled assembly perspective view seen from the back side which shows the center part of the front plate of drawer. It is the disassembled perspective view seen from the front side which shows attachment of the 1st and 2nd operation body, a fixing plate, and an engaging member. It is the exploded view seen from the back side which shows attachment of a handle and a cover case. It is a partially broken top view which shows the center part of the front plate of drawer. (A) is a principal part expanded sectional view which shows the AA cross section line of FIG. 5, (b) is the operation state of the 1st and 2nd operation body by operation of the handle of FIG. 6 (a). It is a principal part expanded sectional side view which shows these. (A) is principal part expansion side sectional drawing which shows the BB sectional line of FIG. 5, (b) is principal part expansion which shows cancellation | release of the lock | rock of a latch apparatus by operation of the handle of FIG. 7 (a). It is a sectional side view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cases, such as furniture 2 Drawer 3 Front plate 3a Bushing mounting hole 3b Long hole 3d Fixing plate mounting screw hole 3e Shaft screw screwing hole 4 Frame body 5 Handle 6 Handle part 7 Sliding part 7a Bolt screwing hole 9 Bearing bush 9a Sliding hole 9b Locking claw 10 First operating body (a part of the operating means of the slide shaft)
DESCRIPTION OF SYMBOLS 11 Upward piece 12 Bolt through-hole 13 Screw through-hole 14 Horizontal piece 14a Lower end part 15 2nd action body (a part of operating means of a slide shaft)
16 Left and right side end portions 16a Bolt through hole 17 Horizontal portion 17a Screw screwing hole 20 Fixing plate 20a of engagement member Screw through hole 20c Screw rod insertion hole 20d Fitting hole 21 Left and right concave grooves 22 Left and right side end pieces 22a Bolt through hole 23 Fixing screw 25 Lower shaft screw (shaft)
26 Lower cylindrical elastic body 27 Upper shaft bolt (extension)
27a Tip portion 27b Bolt head 28 Upper cylindrical elastic body 30 Latch device 33 Lock device 49 Engaging protrusion (engaging portion)
59 Slide shaft 63 Screw rod 63a Tip 63b Large diameter head 91 Mounting plate 92 Locking projection (engaged portion)

Claims (5)

A latch handle provided on the front face of the drawer front plate, a slide shaft that slides back and forth in conjunction with the handle operation, and a slide that slides in a direction perpendicular to the slide shaft in conjunction with the slide shaft In a latch operation mechanism of a drawer having a latching device having a mating portion and a housing-side engaged portion that engages and disengages the engaging portion,
A left and right wide handle portion projecting forward of the front plate, and a pair of sliding portions extending rearward from the left and right sides of the handle portion and slidable back and forth with respect to the front plate. The operating means for operating the slide shaft by the handle has a concave shape in front view, and the left and right upward pieces are inserted from the pair of sliding portions inserted from the front side of the front plate. A horizontal piece connected to an extension extending rearward and connecting lower portions of the left and right upward pieces is disposed at a position lower than the engagement part, and on the right and left sides from the rear surface of the front plate to the rear. A first actuating body pivotably mounted on the projecting shaft portion, left and right side end portions respectively connected to the left and right upward pieces, and a U-shape in a top view configured integrally with the left and right side end portions The slide shaft and the second actuating body composed of a horizontal portion pivotally attached to the slide shaft Withdrawal of the latch actuating mechanism, characterized in that the.   2. The drawer latch operation mechanism according to claim 1, wherein the U-shaped horizontal portion when viewed from above is guided by an inner wall of a long hole opened in a rear surface of the front plate so as to be movable back and forth.   The drawer latch operation mechanism according to claim 1 or 2, wherein a box body in which the engaging portion is housed is positioned in a space above the horizontal piece of the first operation body.   4. The drawer latch operating mechanism according to claim 1, wherein both the operating bodies are plate-shaped.   The drawer latch operation mechanism according to any one of claims 1 to 4, wherein an elastic body that is elastically deformable when the first operation body is tilted is provided in the shaft portion.

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