JPH0522600Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to the structure of a latch device in a drawer, and is designed so that most parts can be shared even for drawers with different vertical height dimensions. This is what I did.

[Problems that conventional technology and ideas try to solve]

BACKGROUND OF THE INVENTION Various structures have been devised in the past for latch devices provided inside the end plate of a drawer that is movable back and forth on the main body of furniture such as a cabinet.

Configuring the latch body of this latch device so that it can be easily attached to the end plate is an important matter in order to simplify the manufacturing process of the drawer.
Publication No. 161377 discloses a configuration in which a latch body and a torsion spring that biases the latch body in a direction to engage the furniture body are attached to the side of the inner surface of the end plate while being attached to the frame body in advance. .

By the way, the height dimension of the drawer mirror plate, and furthermore,
When applying the above-mentioned prior art to a device in which the vertical distance between the actuating body attached to the operating piece located in the pull hole in the end plate and the latch body is different, for example, when mounting on a head plate with a large vertical height, In addition, it is necessary to lower the mounting height of the frame relative to the mirror plate, and to increase the vertical length of the interlocking rod attached to the latch.

On the other hand, when the height of the head plate is small, it is not possible to use a frame with a large vertical dimension, so it is necessary to separately prepare a frame with a small vertical length, and it is not possible to attach parts to the head plate with different vertical dimensions. There was a problem that it could not be shared.

The present invention solves this problem and allows parts of the latch device to be used in common for head plates with different height dimensions.

[Means for solving problems]

Therefore, the present invention provides a drawer in which a latch body disposed on the side of the back side of the head plate of the drawer is driven to rotate in the latch release direction via an operating body on an operating piece facing the pull hole of the head plate. In the latch device, a support frame with a rearward opening is provided protrudingly at a predetermined height position on the back side of the end plate, and a support frame with a front and rear opening into which the latch is rotatably inserted is provided in the support frame. The upper and lower plates of the support frame body and the upper and lower plates of the receiving body are configured such that the upper and lower shaft bodies of the latch body base fitted into the receiving body are sandwiched from the front and back and rotated. A locking portion is formed on one side of the receiver to lock one end of a torsion spring that is fitted onto the shaft of the latch body and biased in the engagement direction. On the other hand, the base end of the interlocking rod can be selectively inserted into the mounting hole bored in both the upper and lower shaft bodies of the latch body from either the upper or lower direction, and the interlocking rod is bent into an appropriate shape so that one end thereof can come into contact with the actuating body.

[Functions and effects of the idea]

In the present invention, a shaft body is provided vertically protruding from the base of the latch body, and a mounting hole is bored in the pair of upper and lower shaft bodies to allow the base end of the interlocking rod to be selectively inserted from either the top or bottom direction. Because of this, the interlocking rod can be mounted either above or below the latch body.

The latch body is fitted into a receiver body that is open from front to back, and the upper and lower plates of this receiver are formed with bearing parts that are open to the rear. By fitting the pair of shaft bodies, the receiving body and the latch body can be securely attached regardless of whether the interlocking rod is in an upwardly extending position or a downwardly extending position.

In addition, one side of the receiver is provided with a locking portion for one end of a torsion spring that is fitted onto the shaft of the latch body and urges it in the engagement direction. A torsion spring is fitted onto one of the pair of upper and lower shaft bodies while the latch body is inserted into the latch body,
By locking one end of the torsion spring to the locking portion of the receiving body and the other end to the latch body, the receiving body and the latch body will not come apart, and the pre-assembly work will be extremely simple.

When this assembly of the receiver and the latch body with interlocking rod is attached to the support frame body at a predetermined height position on the back side of the head plate, both the upper and lower shaft bodies of the latch body are attached to the upper and lower ends of the upper and lower plates of the support frame body. It will automatically fit into the bearing part, making it extremely easy to install each part, and
Positioning is also ensured.

Furthermore, by preparing various shapes of interlocking rods that have one end in contact with the actuating body attached to the operating piece facing the pull hole of the head plate, the height of the head plate, and furthermore, the vertical distance between the actuating body and the latch body can be adjusted. It can be applied very easily even to devices with different placement positions. In other words, the latch body, torsion spring, and receiver parts can be made common to head plates with various height dimensions.
This has the remarkable effect that it can be applied to any head plate by changing only the shape of the interlocking rod if the mounting height of the support frame is different.

〔Example〕

Next, an embodiment will be described. Reference numeral 1 denotes a mirror plate attached to a back plate 3 at the front end of a drawer body 2, which is disposed so as to be movable back and forth with respect to a main body such as a cabinet.
The end plate 1 is injection molded from a synthetic resin material, and the front plate 1
a, a peripheral frame portion 1b and a pull frame 5 with a pull hole 4 are formed in a pair, and an appropriate reinforcing rib 1 is provided on the rear surface of the front plate 1a, integrally or by adhesive, protruding rearward.
It has c.

The attachment of the end plate 1 and the back plate 3 is as shown in FIG.
is fitted onto the bent edge 3a at the upper end of the back plate 3, while
The engagement protrusion 3b on the lower edge of the back plate 3 is engaged with the engagement hole 1e formed in the lower end of the reinforcing rib 1c.

The reinforcing ribs 1c of the end plate 1 are formed with rearward open groove-shaped shaft supports 7, 7 on both the left and right sides, and the left and right ends of the actuating body 6 are rotatably mounted on both shaft supports 7, 7. A rotation angle regulating piece 8 that supports and is attached to the operating body 6
The operating piece 8 with a is facing inside the handle hole 4.

Reference numeral 9 denotes an actuating piece fixed to the actuating body 6, which can come into contact with a horizontal tip 10a of an interlocking rod 10, which will be described later.

Reference numeral 11 denotes a support frame in the form of a rectangular frame with a rearward opening that is integrally provided at a predetermined height position on the back surface of the mirror plate 1.
1c, 11d, and upper and lower plates 11a, 11b.
are provided with groove-shaped bearing portions 12, 12 that are open toward the rear at symmetrical positions in plan view, and engagement holes 13, 13 are provided in the left and right plates 11c, 11d.
has.

Reference numeral 14 denotes a latch body that can be freely engaged and detached from a locking pawl 16 protruding from the inner surface of a side plate 15 of a furniture body such as a cabinet, and is made of synthetic resin.
As shown in FIGS. 8 and 9, a pair of shaft bodies 17, 17 are vertically protruded from the base thereof, and both shaft bodies 17 are provided with an interlocking rod having a rectangular cross section or the like. A mounting hole 18 is formed in which the proximal end of the latch body 10 is irremovably fitted, while a hole 19 is formed at the distal end of the latch body 14 to engage with the locking pawl 16, and a hole 19 is formed in the distal end of the latch body 14, and a hole 19 is formed in the distal end of the latch body 14 to engage with the locking pawl 16.
A mounting hole 21 is provided in which the other end of the torsion spring 20 that is loosely fitted can be locked.

Reference numerals 22, 22 indicate a pair of left and right abutting pieces protruding from the base of the latch body 14.

A rectangular synthetic resin receiver 23 that can be tightly fitted into the support frame 11 has an open front and back shape so that it can be rotated left and right when the latch body 14 is fitted. (see FIGS. 10, 11, and 12), and the upper and lower plates 23a, 23b of the receiving body 23 have rearward facing bearing portions 12, 12 of the upper and lower plates of the support frame 11. While forming open bearing portions 24, 24, the left and right plates 23c, 23d of the receiving body 23 are fitted with the engagement holes 13, 13 in the left and right plates 11c, 11d of the support frame 11 and cannot be removed. Engaging protrusion 2
5 and 25 protrude outward.

Note that even if the receiver 23 is inserted into the support frame 11 upside down, the bearings and the engagement protrusions are symmetrical in shape.

Reference numeral 26 denotes a locking portion provided on a flange portion protruding outward from the lower plate 23b of the receiver 23, and one end of the torsion spring 20 can be locked to the locking portion 26. Yes, this makes the latch body 14
is biased in the latch engagement direction.

Further, one plate 23c of the receiving body 23 is provided with a stopper piece 27, which is brought into contact with the abutting piece 22 to regulate the rotation angle when the latch body 14 is rotated by an appropriate angle from side to side. be.

An interlocking rod 1 whose base end is irremovably fitted into the mounting hole 18 of the shaft body 17 in the latch body 14
0 is formed in various ways depending on the height position at which the latch body 14 is attached to the support frame 11 and the height distance until it abuts the actuation piece 9 on the actuation body 6, and is shown in FIG. In the embodiment, the proximal end of the interlocking rod 10 is inserted and fixed to the lower shaft body 17 of the latch body 14, and the distal end 10a of the interlocking rod 10 is formed so as to extend horizontally from the lower position. In the embodiment shown in FIG. 14, the tip 10a extends horizontally from the upper end.

Furthermore, it is also possible to attach a bent structure as shown in the embodiment shown in FIG. 13 to the end plate 1 of the embodiment shown in FIG. 14 as shown by the dashed line.

In short, depending on the vertical dimensions of the mirror plate 1,
Depending on the mounting height position of the latch body 14, the interlocking rod 1
The base end of the interlocking rod 10 is configured so that it can be selectively inserted in an unrotatable manner from either the upper or lower direction, and the interlocking rod 10 is bent into an appropriate shape so that one end thereof can come into contact with the actuating piece 9. be.

As shown in FIGS. 2 and 14, the end plate 1 has the handle frame 4, the front plate 1a, and the surrounding frame 1b integrally formed, and the shaft support 17 and the support frame 11 are also opened rearward. Therefore, the operating body 6
And the receiver 23 and the latch body 14 are attached to the end plate 1 in advance.
The back plate 3 of the drawer body 2 is assembled on the back side of the drawer body 2.
The left and right sides of the mirror plate 1 that protrude from the back plate 3 are removable side cover plates that fit into the surrounding frame 1b and whose claws 31 fit into the locking holes 32 of the reinforcing ribs 1c. All you have to do is cover it with 30,30.

The lock 3 whose front face faces the hole in the front plate 1a of the end plate
3 is a frame body 34 that projects rearward from the back surface of the front plate 1a.
While being engaged with the locking claw of the frame 34, it is pressed and fixed by the protrusion 35 of the back plate 3.

In this way, in the case where the latch body 14 is attached to the support frame 11 on the back side of the head plate 1 via the receiver 23, the interlocking rod and the latch body can rotate as one, so the latch body 14 can be attached to the handle hole of the head plate. By bringing the operating body attached to the facing operating piece into contact with one end of the interlocking rod, the latch body can be rotated in the latch release direction by operating the operating piece from the front side of the end plate. .

The height position of the latch body to be placed on the back surface of the end panel is set in various ways depending on the height dimension of the end panel and the position of the locking part provided on the furniture body. Furthermore, a support frame for supporting the assembly of the latch and receiver is also provided at a predetermined height on the back side of the end plate.

Correspondingly, by preparing interlocking rods 10 of various shapes, the interlocking rod 10 can be attached to either the upper or lower shaft bodies 17, 17 of the latch body 14. Further, even if the height of the drawer and, by extension, the height of the end plate are different, the latch body and the receiver can be made into common parts, which has the effect of reducing the manufacturing cost of the drawer.

In addition, if a stopper piece is provided on the other side of the receiver to restrict the rotation angle of the latch, the protruding posture of the latch that can freely rotate with respect to the receiver will always be maintained in a constant state. This makes it extremely easy to attach it to the back of the mirror plate.

Furthermore, if the receiver 23 is made to have a bilaterally symmetrical shape, the receiver 23 can be attached upside down to either the left or right support frame 11 of the mirror plate 1, and parts can be more commonly used.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a view of the latch device seen from the back of the end plate; FIG. 2 is a sectional view taken from the side of FIG. 1; and FIG. 4 is a side sectional view of FIG. 2 with the interior omitted, and FIG. 5 is a side sectional view of FIG. 2.
6 is a sectional view taken from the side of FIG. 1, FIG. 7 is a sectional view taken from the side of FIG. 6, FIG. 8 is a partially cutaway side view of the latch body, and FIG. A partially cutaway plan view of the body, FIG. 10 is a front view of the receiver, and FIG. 11 is a side view of FIG.
FIG. 12 is a plan view of FIG.
FIG. 3 is a side view of another embodiment of the interlocking rod, and FIG. 14 is a perspective view of another embodiment of the latch device. 1... Mirror plate, 2... Drawer body, 3... Back plate,
4...Handle hole, 5...Handle frame, 6...Operating body, 7
...Axis support, 8...Operation piece, 9...Operating piece, 10
...Interlocking rod, 11...Support frame, 11a, 11b
... Upper and lower plates, 12 ... Bearing section, 14 ... Latch body, 15 ... Side plate, 16 ... Locking claw, 17, 17
... Shaft body, 18 ... Mounting hole, 19 ... Hole, 20 ...
...Torsion spring, 21...Mounting hole, 22...Abutment piece, 23...Receiver, 23a, 23b...Upper and lower plates, 24...Bearing portion, 25...Engaging protrusion, 27...
... Stopper piece, 30 ... Side cover plate, 33 ...
Lock tablet.

Claims (1)

[Scope of utility model registration request] In a drawer latch device, a latch body disposed on the back side of a head plate of the drawer is rotationally driven in a latch release direction via an operating body attached to an operating piece facing a pull hole of the head plate. A support frame with a rearward opening is provided protrudingly at a predetermined height position on the back side of the end plate, and a receptacle with an open front and back shape into which a latch body is rotatably inserted is detachably attached to the support frame. The upper and lower plates of the support frame and the upper and lower plates of the receiving body are rotatably supported by sandwiching both the upper and lower shaft bodies of the latch body base fitted into the receiving body from the front and back. A locking portion is provided on one side of the receiver for locking one end of a torsion spring that is fitted onto the shaft of the latch body and biased in the engagement direction; The base end of the interlocking rod can be selectively inserted into the mounting holes formed in both the upper and lower shaft bodies of the latch body from either the upper or lower direction, and cannot be rotated. A latch device for a drawer, characterized in that the latch device is bent into an appropriate shape so that it can come into contact with the operating body.