JP6395100B2 - Cabinet with drawer - Google Patents

Description

  The present invention relates to a cabinet suitable for use in a cabinet having drawers, particularly a cabinet with drawers in a system kitchen.

  In recent years, cabinets that improve the opening / closing operability of drawers have become widespread in system kitchens.

Patent Document 1 discloses a drawer that can slide in the opening / closing direction with respect to a cabinet body, pushing force assisting means for applying a force in an opening direction that is a direction for opening the drawer, and a closing direction that is a direction for closing the drawer. There is disclosed a cabinet with a drawer provided with a pull-in force assisting means for applying a force to the frame.

JP 2007-252491 A

  As described above, the cabinet described in Patent Document 1 includes the pushing force assisting means and the pulling force assisting means. The user can open the drawer with a small force, and the drawer is pulled out to a predetermined area. The drawer can be automatically closed by pushing in, but the pull-out force demonstrating area, which is the area where the force of the pull-in force assist means is applied, and the push-out area, where the force in the opening direction of the push-out force assist means is accumulated. Depending on the state of installation with the force accumulation area, the pulling force is used for accumulating the pushing force, and the force for closing the drawer is insufficient, and the drawer may not be completely closed.

For the purpose of improving the opening and closing operability of the drawer of the cabinet with a drawer, the present inventors can open the drawer with a small force, and can reliably close the drawer when closing the drawer. In order to provide a cabinet with drawers that can be used, we have intensively studied.

  When the user opens the drawer, the drawer must be moved from a stationary state where the drawer is in a fully closed state, so that a static frictional force is applied. Furthermore, the user must store the pulling force of the pulling force assisting means, and the user needs a force to store the pulling force of the pulling force assisting means in addition to the static friction force when opening the drawer, and opens the drawer. Sometimes it takes a lot of power.

  Therefore, in order to open the drawer with a small force, an extrusion force assist means is provided to allow the drawer to be opened with a small force by applying an extrusion force to the drawer, but the drawer is fully closed. If force is applied in the vicinity, the region where the pushing force is accumulated is also performed near the fully closed state, the region where the pushing force is accumulated and the region where the pulling force is exerted overlap, and the pulling force increases the pushing force. This was used as an accumulation force, and the problem that the drawer could not be closed completely due to insufficient force to close the drawer.

The present invention has been made in view of the problem in improving the opening / closing operability in a cabinet with a drawer, and the force in the closing direction of the pull-in force assist means is used as a force for accumulating the push-out force of the push-out force assist means. It is an object of the present invention to provide a cabinet with a drawer in which the drawer can be securely closed without any trouble.

In order to solve the above-mentioned problems, a cabinet with drawers according to the present invention includes a cabinet body having a storage space inside, a drawer that can move forward and backward with respect to the storage space of the cabinet body, and a drawer when the drawer is moved in the closing direction. Immediately before the fully closed state, a pulling force exerting region that applies a pulling force that is a force in the closing direction to the drawer, and a pulling force accumulation that accumulates the pulling force immediately after the drawer is moved from the fully closed state to the opening direction. A pull-in force assist means having a region, and a push-out force exhibiting region that assists the opening operation of the user by applying a push-out force that is a force in the open direction to the drawer in the pull-in force accumulation region when the drawer is moved in the opening direction. Extrusion force assist having a pushing force accumulation area that accumulates pushing force by moving the drawer in the closing direction A cabinet with drawers provided with a step, and the cabinet with drawers is pushed out so that the push-out force accumulation area overlaps with the draw-out force exerting area and the draw-in force is not used to accumulate the push-out force. An overlap avoidance mechanism is provided in which the force accumulation region is provided on the opening direction side of the pulling force exhibiting region.

The first invention is provided with an overlap avoidance mechanism provided on the opening direction side so that the pushing force accumulation region does not overlap the pulling force exhibiting region, so that the drawer moves the pulling force exhibiting region in a state where the pushing force accumulation is completed. Therefore, it is possible to prevent the pull-in force from being used as the force for accumulating the push-out force, and to reliably close the drawer.
In the present invention, the push-out force assisting means is constituted by a spring member whose load increases in accordance with the amount of movement of the drawer in the push-out force accumulation region in which the push-out force is accumulated by moving the drawer in the closing direction. In the accumulation area, it is provided with a transmission change rate changing mechanism for changing the transmission of the operating force that moves the drawer necessary for accumulating the pushing force in the closing direction. A first pushing force accumulation region that increases the transmission conversion rate of the operating force transmitted to the spring member; and a second pushing force accumulation region that has a lower transmission conversion rate of the operating force transmitted to the spring member than the first pushing force accumulation region. A first pushing force accumulation region provided at least on the closing direction side with respect to the second pushing force accumulation region. To. The pushing force of the pushing force assist means applies force in the opening direction to assist the opening operation when opening the drawer, so when moving the drawer in the closing direction to close the drawer, in addition to the weight of the drawer, the pushing force A force is required to accumulate force, and the user must apply a large force in the closing direction while moving in the pushing force accumulation region. In this case, the pulling force acts in addition to the user's large force in the closing direction, and the drawer moves further in the closing direction due to the greater force. Although the pulling force assist means may be overloaded and break down, the third invention is a transmission conversion rate changing mechanism that transmits the operating force transmitted to the spring member that accumulates the pushing force. The rate of increase in operating force during movement of the first pushing force accumulation area can be made smaller than the amount of increase in operating force in the second pushing force accumulation area. Then, since the increase amount of the operation force is small, the user can further suppress the force to be applied as compared with the movement of the second pushing force accumulation region. Therefore, the user's consciousness to apply more force is weakened, and it can be suppressed to reach the pulling force display area while increasing the force in the closing direction of the drawer, and the drawer is completely moved with the momentum to close the drawer It can prevent being unable to close. Furthermore, since the momentum at the time of closing the drawer does not increase, it is possible to prevent the pulling force assisting means from being broken without overloading the pulling force assisting means.

  According to a second aspect of the invention, the overlap avoidance mechanism is characterized in that the pushing force accumulation region is eccentrically provided on the fully closed side between the fully opened state and the fully closed state of the drawer. By providing the pushing force accumulation area eccentrically on the fully closed side in this way, even if the user does not open the drawer to the fully open position, the drawer will not be closed without accumulating the pushing force. Can be used to open the drawer and lightly open the drawer.

Preferably, in the present invention, the first pushing force accumulation region is characterized in that the transmission conversion rate is increased by the transmission conversion rate changing mechanism so that the operation force continues to decrease from the end of the second pushing force accumulation region. To do. The first push-out force accumulation region is pulled in by increasing the transfer conversion rate of the operation force transmitted to the spring member by the transfer conversion rate changing mechanism and reducing the operation force from the end of the second push-out force accumulation region. The user can weaken the operation force as he approaches the force exerting region, and can more reliably suppress the user from reaching the retracting force exhibiting region while increasing the force in the closing direction. Therefore, it does not reach the pulling force exhibiting area while increasing the operating force applied to the drawer, and the pulling force is not exhibited in addition to the large operating force of the user. Therefore, it is not necessary to move the drawer in the closing direction vigorously in the pulling force exerting region, and it is possible to prevent the drawer that once reached the fully closed state from jumping out due to the reaction when closing the drawer, and the pulling force assist means is overloaded. It is also possible to prevent a failure.

Preferably, in the present invention, the drawer acts to apply a closing force to the spring member in order to accumulate the pushing force, and an operation unit that can be held and opened by the user at the center of the front of the drawer in the left-right direction. The pushing force transmission action part is provided on the rear surface of the drawer so that the drawer does not rotate in the left-right direction when the user grasps the operation part and moves the drawer in the closing direction. It is provided at the center in the left-right direction. The pushing force transmission acting part for accumulating pushing force on the spring member and the operation part that the user holds and opens / closes can be set at the same position in the left / right direction, and the operation part is held and applied in the closing direction. Since the force and the force in the opening direction received by the force transmission acting part accumulates the pushing force, the drawer does not shift in the left-right direction, and the drawer does not rotate in the left-right direction. Can be moved.

According to the present invention, there is provided a cabinet with a drawer that can reliably close a drawer without being used as a force for accumulating the pushing force of the pushing force assisting means. It is intended to provide.

Perspective view showing cabinet with drawers Side view showing cabinet with drawers Top view showing cabinet with drawers Top view showing the drawer fully closed Relationship diagram showing the operating force when opening the drawer Top view showing cabinet with drawers Detailed view of the duplicate avoidance mechanism Top view showing after the push force has been accumulated Top view showing transmission conversion rate change mechanism Diagram showing transmission conversion rate changing mechanism, transmission conversion rate and operating force

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate understanding, the same components are denoted by the same reference numerals as much as possible in the drawings, and redundant description is omitted.

First, the configuration of the cabinet with drawers of the present invention will be described with reference to FIG. 1, FIG. 2, and FIG.
FIG. 1 is a perspective view showing a cabinet with drawers according to an embodiment of the present invention. FIG. 2 is a side view showing a cabinet with drawers according to an embodiment of the present invention. FIG. 3 is a top view illustrating a cabinet with drawers according to an embodiment of the present invention.

As shown in FIG. 1, the cabinet 1 which is embodiment of this invention is installed in the system kitchen. The cabinet 1 is provided with a drawer 2 and an operation unit 3.

Further, as shown in FIGS. 2 and 3, the cabinet 1 has rails 4 provided on the left and right sides of the drawer 2 and a storage space 5 for storing cooking utensils and the like. The drawer 2 can move in the storage space 5 in the direction of arrow A. Further, when the drawer 2 is moved in the direction of arrow A, the operation unit 3 provided in front of the drawer 2 can be gripped and moved.

The cabinet 1 includes a pull-in force assisting means 20 that applies a pull-in force, which is a force in the closing direction, to the drawer 2 by operating the drawer 2 to near full close in the process of closing the drawer 2. Specifically, the pull-in force assisting means 20 is preferably constituted by a spring having an elastic force, like the push-out force assisting means 10. Further, in the state where the drawer 2 is closed, the pushing force assisting means 10 for applying a force in the direction of opening the drawer 2 and the pushing force assisting means 10 for applying the pushing force which is a force in the direction of opening the drawer 2. And a spring member 12 for storing the pushing force in the direction of opening the drawer 2.

Furthermore, the cabinet 1 pushes out the pushing force transmitting action portion 14 provided on the drawing rear surface 7 of the drawer 2 and the drawer 2 to close the drawer 2 in order to transmit the pushing force of the pushing force assist means 10 to the drawer 2. The overlap avoiding mechanism 30 that prevents the timing at which the pushing force of the force assisting means 10 is accumulated and the timing at which the pulling force that is the closing force of the pulling force assisting means 20 is exerted from overlapping, and the pushing out of the pushing force assisting means 10 A transmission conversion rate changing mechanism 40 that efficiently transmits the operating force of the drawer 2 to the spring member 12 when the force is accumulated is provided.

Since the cabinet 1 has the pull-in force assist means 20, when the user moves the pull-out 2 in the closing direction, the pull-in force acts on the pull-out 2 by the pull-in force assist means 10, and the fully closed state. The drawer 2 can be completely closed without applying any force. Further, since the pushing force assisting means 10 is provided, when the drawer 2 is opened from the state where the drawer 2 is closed, the drawing member 2 is pulled by the spring member 12 storing the pushing force in the direction in which the drawer 2 is opened. Therefore, the drawer 2 can be pulled out with a light force.

Furthermore, the cabinet 1 pushes out the pushing force transmitting action portion 14 provided on the drawing rear surface 7 of the drawer 2 and the drawer 2 to close the drawer 2 in order to transmit the pushing force of the pushing force assist means 10 to the drawer 2. The overlap avoiding mechanism 30 that prevents the timing at which the pushing force of the force assisting means 10 is accumulated and the timing at which the pulling force that is the closing force of the pulling force assisting means 20 is exerted from overlapping, and the pushing out of the pushing force assisting means 10 A transmission conversion rate changing mechanism 40 that efficiently transmits the operating force of the drawer 2 to the spring member 12 when the force is accumulated is provided.

Next, with reference to FIG.4 and FIG.5, the operation | movement which opens the drawer 2 is demonstrated. FIG. 4 is a top view of the drawer 2 in the fully closed state. FIG. 5 is a relational diagram showing the operating force when opening the drawer 2.
As shown in FIG. 4, the pull-in force assist means 10 provided in the rail 4 does not store the pull-in force for pulling in the drawer 2 in the pull-in force assist means 10 when the drawer 2 is closed. In order to store the pull-in force in the pull-in force assist means 10, the pull-in force is stored in the pull-in force accumulation region 54 from a state in which the drawer 2 is fully closed.
Further, as shown in FIG. 4, the cabinet 1 has a push-out force exerting region 62, which is a region to which a push-out force is applied in order to reduce the operation force when the drawer 2 is opened from the closed state of the drawer 2. Is formed until the spring member 12 accumulating the pushing force releases the force.

FIG. 5 shows the relationship between the force applied to the drawer 2 and the operating force when the drawer 2 is opened from the closed state.
As shown in FIG. 5 (a), when the push-out force assisting means 20 is not provided when the drawer 2 is closed, the force for accumulating the pull-in force and the weight of the stored item stored in the drawer. As a result, static friction is applied and the operating force increases. As shown in FIG. 5 (b), by providing the pushing force assisting means 20, the pushing force assisting means 20 gives the pushing force that is the force in the opening direction to the drawer 2, so that the drawer 2 can be opened. The operating force can be reduced.

Next, the overlap avoidance mechanism 30 will be described with reference to FIGS. FIG. 6 is a top view of the cabinet 1, and FIG. 7 is a detailed view of the overlap avoidance mechanism 30.
As shown in FIGS. 6 and 7, the overlap avoidance mechanism 30 is provided on the back side of the cabinet 1, and the pushing force transmitting action unit 14 provided at the center of the drawer rear surface 7 of the drawer 2 in the left-right direction, the cabinet An arm 32 fixed to 1 and rotating, a spring member 12, a catcher 36 fixed to the movable side of the spring member 12, and a link 34 connecting the catcher 36 and the arm 32 are provided.

  As shown in FIG. 6, the overlap avoidance mechanism 30 is configured to jump out to the opening direction side of the drawer 2 when the drawer 2 is open. In this way, by configuring the overlap avoidance mechanism 30 so as to pop out in the opening direction side, the pushing force that stores the pushing force in the opening direction side with respect to the drawing force exerting region 52 that applies the drawing force to the drawer 2 in the vicinity of the fully closed state. The accumulation region 64 can be provided, and the pulling force exerting region 52 and the pushing force accumulation region 64 can be prevented from overlapping. Furthermore, it is preferable that the overlap avoidance mechanism 30 is provided with the pushing force accumulation region 64 eccentrically on the fully closed side between the fully opened state and fully closed state of the drawer.

In this way, by avoiding the overlap between the pull-in force exerting region 52 and the push-out force accumulation region 64, the pull-in force is applied to the drawer 2 after the push-out force accumulation is completed, so that the pull-in force accumulates the push-out force. Therefore, it is possible to prevent the movement due to the pulling force from ending before the drawer 2 reaches the fully closed state.

Further, by providing the pushing force accumulation region 64 eccentrically on the fully closed side, the pushing force is accumulated even when the drawer 2 is opened only about half open when the stored item stored on the front side of the drawer 2 is taken out. Therefore, the drawer can be opened using the pushing force next time, and the drawer can be opened with a light force.

Next, the process of closing the drawer 2 will be described with reference to FIG. 6, FIG. 7, and FIG. FIG. 8 is a top view after the pushing force accumulation is completed.
As shown in FIG. 6, when the drawer 2 is open, the pushing force of the pushing force assisting means 10 is used when opening the drawer 2, and the pushing force is accumulated in the spring member 12 of the pushing force assisting means 10. In this state, the overlap avoidance mechanism 30 protrudes toward the opening direction.

As shown in FIG. 7, the drawer 2 is moved in the closing direction, and reaches the pushing force accumulation region 64 where the pushing force transmitting action portion 14 provided on the drawing rear surface 7 of the drawer 2 contacts the overlap avoidance mechanism 30. To do. Further, the drawer 2 is moved in the closing direction, and the pushing force transmitting action portion 14 pushes the arm 32 of the overlap avoidance mechanism 30 of the pushing force assisting means 20, whereby the spring member 12 is extended and the pushing force is accumulated. When a predetermined pushing force is accumulated in the spring member 12, it is locked by the catcher 36, and the spring member 12 is fixed in an extended state, and the accumulation of the pushing force is completed. As shown in FIG. 8, the pushing force transmission action portion 14 after the pushing force accumulation is completed passes through the notch portion 38 of the arm 32, so that the force of the spring member 12 does not act on the drawing 2 and the drawing 2 is further closed. When moved in the direction, the drawer 2 reaches the pulling force exerting region 52 and is automatically closed even if the user releases the hand from the drawer 2.

Next, the transmission conversion rate changing mechanism 40 will be described with reference to FIG. FIG. 9 is a top view of the transmission conversion rate changing mechanism 40. One side of the arm 32 is fixed to the cabinet bottom surface 6 and the other end is configured to rotate. The other end of the arm 32 is connected to the link 34, and the other end of the link 34 is connected to the catcher 36. The other end of the catcher 36 is connected to the spring member 12, and when the arm 32 rotates counterclockwise, the spring member 12 extends and the pushing force is accumulated in the spring member 12. Further, when the pushing force of the spring member 12 is released and the spring member 12 contracts, the arm 32 rotates clockwise.
Here, the transfer conversion rate will be described. In FIG. 8, the force that the drawer 2 pushes the arm 32 is Fd, and the catcher 36 is the force Fs that extends the spring member 12. At this time, the ratio of the force Fs that extends the spring member 12 to the force Fd that pushes the arm 32 with a part of the investigation force is defined as a transmission conversion rate.
The force applied to the pushing force assisting means 10 from the pushing force transmitting action portion 14 by moving the drawer 2 in the closing direction is transmitted to the spring member 12 via the arm 32 and the link 34. By accumulating the pushing force on the spring member 12 via the arm 32 and the link 34, the operating force necessary for accumulating the pushing force is changed because the angle θ of the arm 32 shown in FIG. 9 changes. . When the angle θ of the arm 32 is smaller than a predetermined angle, the user can reduce the operating force applied to the drawer 2. Specifically, the transmission conversion rate changing mechanism 40 is preferably a toggle mechanism that can generate a large force with a small force.

  Next, the operation force from the open state to the fully closed state during the operation of closing the drawer 2 will be described with reference to FIG. FIG. 10 is a diagram showing the transmission conversion rate changing mechanism 40 and the operating force.

Therefore, by using a mechanism as shown in FIG. 9, the pushing force accumulation region 64 can be divided into regions having different transmission conversion rates. As shown in FIG. 10, the first push-out force accumulation region 66 that increases the transfer conversion rate so that the force applied to the spring member 12 is large, and the transfer conversion rate is lower than that of the first push-out force accumulation region 66. Two pushing force accumulation regions 68 are formed. The first pushing force accumulation region 66 is formed closer to the closing direction than the second pushing force accumulation region 68.

As shown in FIG. 10 as an operation force in the process of closing the drawer 2 in the closing direction, the operation force at the beginning of closing when the drawer 2 is closed generates a static friction to change the drawer 2 from a stationary state to a moving state. Requires a large operating force. When the drawer 2 starts to move in the closing direction, the drawer 2 moves with an inertial force, so that the necessary operating force decreases as it moves and becomes a predetermined operating force.

  Further, when the drawer 2 is operated in the closing direction with a predetermined operation force, the push force accumulation means 64 reaches the push force accumulation area 64 where the push force is accumulated. In the pushing force accumulation region 64, the pushing force must be accumulated in the spring member 12, and the operation force required to move the drawer 2 in the closing direction side becomes large. Further, when the spring member 12 is used in which the force necessary for accumulating the pushing force increases linearly as the moving distance in the pushing force accumulation region 64 becomes longer, the pushing force is accumulated in the spring member 12. The force required for this will increase linearly. Since the transfer conversion rate is low in the second pushing force accumulation region 68, the operating force applied by the user in the closing direction increases. Thereafter, the drawer 2 is moved further in the closing direction to reach the first pushing force accumulation region where the transmission conversion rate is high. In the first push-out force accumulation region 66, the transmission conversion rate increases as the drawer 2 is moved, so that the operation force for the user to move the drawer 2 in the closing direction decreases. With reference to FIG. 9, the increase in the transfer conversion rate will be described. While the drawer 2 passes through the second pushing force accumulation area 68, the angle θ of the arm 32 is large and the operation force applied to the drawer 2 by the user increases, but when the drawer 2 reaches the first pushing force accumulation area 66, When the angle θ of the arm 32 is smaller than the predetermined angle θ, the transmission conversion rate can be increased. Therefore, the operating force with which the user operates the drawer 2 is reduced.

  Thus, when reaching the first pushing force accumulation region 66, the user can weaken the force applied to the drawer 2 in the closing direction, and reaches the pulling force exerting region 52 while increasing the force in the closing direction. There is nothing. Therefore, the pull-in force exerting region 52 is not reached when the drawer 2 has a large operation force in the closing direction, and the pull-in force of the pull-in force assisting means 20 is not added in addition to the force in the closing direction of the user. The pull-in force assisting means 20 can be prevented from malfunctioning without the drawer 2 being closed vigorously without overloading the pull-in force assisting means.

  As described above, when the opening / closing operability is improved in the cabinet with a drawer of the present invention, the force in the closing direction of the pull-in force assist means is not used as a force for accumulating the push-out force of the push-out force assist means. A cabinet with drawers that can be securely closed can be provided.

1: Cabinet 2: Drawer 3: Operation unit 4: Rail 5: Storage space 6: Cabinet bottom surface 7: Drawer rear surface 10: Pushing force assisting means 12: Spring member 14: Pushing force transmission acting part 20: Pulling force assisting means 30: Overlap avoidance mechanism 32: arm 34: link 36: catcher 38: notch 40: transmission conversion rate changing mechanism 52: retracting force exhibiting area 54: retracting force accumulating area 62: pushing force exhibiting area 64: pushing force accumulating area 66: first One pushing force accumulation area 68: Second pushing force accumulation area

Claims (4)

A cabinet body having a storage space inside;
A drawer capable of moving forward and backward with respect to the storage space of the cabinet body;
When the drawer is moved in the closing direction, a pulling force exerting region that applies a pulling force that is a force in the closing direction to the drawer immediately before the drawer is fully closed, and the drawer is opened from the fully closed state to the opening direction. A retraction force assisting means having a retraction force accumulation region for accumulating the retraction force immediately after being moved to
When moving the drawer in the opening direction,
In the pull-in force accumulation region, a push-out force exerting region that assists a user's opening operation by applying a push-out force in the opening direction to the drawer, and a push-out that accumulates the push-out force by moving the drawer in the closing direction A cabinet with drawers having pushing force assist means having a force accumulation region,
Further, in the cabinet with drawers, the push-out force accumulation area overlaps the draw-in force exerting area, and the pull-out force accumulation area is not pulled in so that the pull-in force is not used to accumulate the push-out force. Equipped with an overlap avoidance mechanism provided on the opening direction side of the force display area ,
The pushing force assist means is
It is composed of a spring member that increases the load in accordance with the amount of movement of the drawer in the pushing force accumulation region that accumulates the pushing force by moving the drawer in the closing direction,
A transmission change rate changing mechanism for changing transmission of an operating force for moving the drawer necessary for storing the pushing force in the closing direction in the pushing force accumulation region;
The transmission conversion rate changing mechanism is:
In the pushing force accumulation region, a first pushing force accumulation region that increases a transmission conversion rate of the operation force transmitted to the spring member;
A second push-out region having a lower transfer conversion rate of the operating force transmitted to the spring member than the first push-out force accumulation region,
The cabinet with a drawer, wherein the first push-out force accumulation region is provided at least on the closing direction side with respect to the second push-out force accumulation region . The duplication avoidance mechanism is:
The cabinet with drawers according to claim 1, wherein the push-out force accumulation region is eccentrically provided on a fully closed side between the fully opened state and the fully closed state of the drawer. The first pushing force accumulation region is
Wherein the transmission conversion rate changing mechanism, drawers cabinet according to claim 1, characterized in that the operating force is increased the transmission conversion rate to continue to decrease than during the second pushing force storage area end. The drawer is
An operation unit that can be opened and closed by a user gripping in the center of the front of the drawer in the left-right direction;
A pushing force transmitting action portion acting to apply a closing force to the spring member in order to accumulate the pushing force;
The pushing force transmission action part is
The center of the rear surface of the drawer in the left-right direction is provided so that the drawer does not rotate in the left-right direction when the user grasps the operation unit and moves the drawer in the closing direction. Item 5. A cabinet with drawers according to items 1 to 3 .

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