JP2015123203A - Door structure and dishwasher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology capable of softening an impact when a door member is completely closed or completely opened, even when a user opens/closes the door member forcefully.SOLUTION: A device body, and a door structure including a door member for opening/closing a front side opening of the device body by rotating around a rotational shaft below with respect to the device body are disclosed. The door structure also includes: an engaging member fixed at one of the device body and the door member; and a member to be engaged fixed at the other of the device body and the door member. By one of the engaging member and the member to be engaged being energized toward the other of the engaging member and the member to be engaged, the engaging member and the member to be engaged slide with each other when the door member rotates with respect to the device body. A protrusion part is formed on a surface of the engaging member opposing to the member to be engaged, and a recess part is formed on the surface of the member to be engaged opposing to the engaging member. The recess part of the member to be engaged is arranged on a locus drawn by a point with which the protrusion part of the engaging member comes into contact when the door member rotates with respect to the device body.

Description

  The present specification relates to a door structure and a dishwasher.

  Patent Document 1 discloses a door structure including a device main body and a door member that rotates around a lower rotation shaft with respect to the device main body to open and close the front opening of the device main body.

JP-A-11-197084

  In the technique of Patent Document 1, when the user opens and closes the door member with a strong force, the device may be damaged due to a large impact when the door member is completely closed or fully opened. Even if the user opens and closes the door member vigorously, a technique is expected that can alleviate the impact when the door member is completely closed or fully opened.

  The present specification discloses a door structure including a device main body and a door member that rotates around a rotation axis below the device main body and opens and closes a front opening of the device main body. The door structure further includes an engaging member fixed to one of the apparatus main body and the door member, and an engaged member fixed to the other of the apparatus main body and the door member. In the door structure, when one of the engaging member and the engaged member is biased toward the other of the engaging member and the engaged member, the door member rotates with respect to the apparatus main body. The engaging member and the engaged member are configured to slide relative to each other. In the door structure, a convex portion is formed on the surface of the engaging member that faces the engaged member, and a concave portion is formed on the surface of the engaged member that faces the engaging member. In the door structure, the recessed portion of the engaged member is arranged on a locus drawn by the point where the protruding portion of the engaging member abuts when the door member rotates with respect to the device main body.

  In the above door structure, when the door member rotates, the convex portion of the engaging member engages with the concave portion of the engaged member, and the reaction force accompanying the release of this engagement acts on the door member. By adopting such a configuration, a braking force is applied when the door member opens and closes vigorously, and the impact when the door member is completely closed or fully opened can be reduced.

  Said door structure can be comprised so that a to-be-engaged member may have the said some recessed part.

  According to the door structure described above, a large braking force can be exerted as a whole without increasing the braking force (that is, the reaction force at the time of releasing the engagement) in each recess.

  The door structure described above can be configured such that the engaged member is fixed to the door member and is an arm that supports the door member so as to be rotatable about the rotation axis with respect to the device main body.

  According to the door structure described above, since the recessed portion can be formed in the arm originally provided in the door structure to be an engaged member, it is not necessary to add a new part as the engaged member. An increase in the number of parts can be suppressed.

  This specification also discloses a dishwasher that is incorporated into a system kitchen. The dishwasher includes the door structure described above.

  According to the door structure and the dishwasher disclosed in the present specification, even when the user opens and closes the door member vigorously, the impact when the door member is completely closed or fully opened can be reduced. .

(A) is a figure which shows the external appearance of the state which closed the upper panel 6 about the dishwasher 2 of an Example. (B) is a figure which shows the external appearance of the state which opened the upper panel 6 about the dishwasher 2 of the Example. It is a perspective view which shows the external appearance of the state which closed the upper panel 6 about the dishwasher 2 of an Example. It is a perspective view which shows the external appearance of the state which opened the upper panel 6 with the 1st opening angle about the dishwasher 2 of an Example. It is a perspective view which shows the external appearance of the state which opened the upper panel 6 with the 2nd opening angle about the dishwasher 2 of an Example. It is a perspective view which shows the vicinity of the arm 31 in the state which closed the upper panel 6 about the dishwasher 2 of an Example. It is a perspective view which shows the vicinity of the arm 31 in the state which opened the upper panel 6 with the 1st opening angle about the dishwasher 2 of an Example. It is a perspective view which shows the vicinity of the arm 31 in the state which opened the upper panel 6 with the 2nd opening angle about the dishwasher 2 of an Example. It is a side view which shows the vicinity of the arm 31 in the state which closed the upper panel 6 about the dishwasher 2 of an Example. It is a side view which shows the vicinity of the arm 31 in the state which opened the upper panel 6 with the 1st opening angle about the dishwasher 2 of an Example. It is a side view which shows the vicinity of the arm 31 in the state which opened the upper panel 6 with the 2nd opening angle about the dishwasher 2 of an Example.

(Example)
A dishwasher 2 according to an embodiment of the present invention will be described with reference to the drawings. As shown to Fig.1 (a), the dishwasher 2 of a present Example is built in under the kitchen counter K, and comprises a part of system kitchen. The dishwasher 2 is a so-called front open type dishwasher and includes a door structure 4. In the door structure 4, the upper panel 6 that opens and closes the front opening of the device main body 8 is rotatable around a lower rotation shaft with respect to the device main body 8. As shown in FIG. 1 (b), the user can open and close the upper panel 6 and tilt it down, and pull out the tableware basket 9 housed in the device main body 8 to take in and out the tableware. The dishwasher 2 can perform cleaning, rinsing, and drying processes on the tableware housed in the space inside the device body 8.

  As shown to Fig.1 (a), the operation panel 10 is provided in the upper end of the upper panel 6, and the decorative board 12 is attached to the downward direction. A lower panel 14 is disposed below the upper panel 6. The lower panel 14 includes a decorative board 15. The decorative panel 12 of the upper panel 6 and the decorative panel 15 of the lower panel 14 are painted with the same color and pattern as the surface material of the system kitchen components such as the storage portions L1, L2, and M arranged below the kitchen counter K. It has a surface finish. Therefore, when the dishwasher 2 is built in and the system kitchen is configured, a sense of unity with the surrounding system kitchen components can be obtained and the system kitchen can be configured with a beautiful appearance.

  A through hole 20, a handle 22, and a front operation display unit 24 are provided on the front surface of the operation panel 10. An upper surface operation display unit 25 is provided on the upper end surface of the operation panel 10. The through hole 20 penetrates between the front surface and the back surface of the operation panel 10. When the upper panel 6 is completely closed, the exhaust nozzle 26 protruding forward from the device body 8 is inserted into the through hole 20. The exhaust nozzle 26 communicates with a space for storing tableware inside the device body 8. The tip of the exhaust nozzle 26 is formed to be substantially flush with the front surface of the operation panel 10 when the upper panel 6 is completely closed. The steam generated when the dishwasher 2 performs washing and rinsing of the dishes with hot water is discharged to the outside through the exhaust nozzle 26 when the dishwasher 2 dries the dishes.

  The handle 22 is formed in a hollow shape that can be put on by the user. An engagement release button (not shown) is provided on the inner upper surface of the handle 22. When the user puts the hand on the handle 22 and pushes up the disengagement button upward, the engagement fitting 28 provided on the back surface of the operation panel 10 and the engagement portion 30 provided above the front opening of the device main body 8. Is disengaged. In this state, when the user pulls the upper panel 6 forward, the upper panel 6 can be opened and brought down. When the user closes the upper panel 6, the engagement fitting 28 of the operation panel 10 is engaged with the engagement portion 30 of the apparatus main body 8, and the upper panel 6 is held in a completely closed state.

  The front operation display unit 24 and the upper surface operation display unit 25 are provided with a display unit that presents the operating state of the dishwasher 2 to the user, a switch that receives an operation input from the user, and the like. On the front operation display unit 24, a power switch, an operation start switch, an operation state indicator lamp, and the like are arranged. The upper surface operation display unit 25 includes a course selection switch, a drying time setting switch, a reservation setting switch, and the like. Thus, by disposing the front operation display unit 24 and the upper surface operation display unit 25 separately, the range occupied by the operation display unit on the front surface of the operation panel 10 (that is, the front surface of the upper panel 6) is reduced, and dishwashing is performed. The aesthetics of the machine 2 can be improved.

  When the upper panel 6 is completely closed, the upper surface operation display unit 25 is hidden below the kitchen counter K and cannot be visually recognized or operated by the user. When the user opens the upper panel 6 slightly forward, the upper surface operation display unit 25 is exposed, and the user can visually recognize and operate the upper surface operation display unit 25.

  2 to 10 show how the door structure 4 is opened and closed in the dishwasher 2. FIG. 5 to 10, it should be noted that the outer wall 32 of the device main body 8 is not shown in order to clearly show the internal mechanism. Arms 31 are attached to both ends of the upper panel 6. The apparatus body 8 has a double wall structure of an outer wall 32 (see FIGS. 2 to 4) and an inner wall 34 (see FIGS. 5 to 10) at both ends, and the arm 31 is between the outer wall 32 and the inner wall 34. It is arranged to go in. The arm 31 is rotatably connected to the inner wall 34 of the device body 8 via a horizontal rotation axis A. The rotation axis A is disposed below the lower end of the front surface of the upper panel 6 (that is, the lower end of the decorative plate 12) and forward of the front opening of the device body 8.

  As shown in FIGS. 5 to 10, the lower panel 14 includes a support member 36 that supports the decorative plate 15 from the back surface. The support member 36 is supported on the inner wall 34 of the device main body 8 so as to be slidable in the vertical direction. The support member 36 is connected to the arm 31 via a link mechanism 38. When the upper panel 6 rotates in the opening direction, the lower panel 14 slides downward. When the upper panel 6 rotates in the closing direction, the lower panel 14 slides upward.

  The arm 31 and the device body 8 are connected by a coil spring 40. The coil spring 40 is disposed along a plane including the front-rear direction and the vertical direction of the device body 8. When the upper panel 6 is rotated in the opening direction, a force in the direction of closing the upper panel 6 acts on the arm 31 by the elastic restoring force of the coil spring 40. As the opening angle of the upper panel 6 increases, the elastic restoring force of the coil spring 40 increases.

  Further, a leaf spring 42 is in contact with the outside of the arm 31. The leaf spring 42 has a shape bent in a Z shape from the lower part toward the upper part. The lower part of the leaf spring 42 is fixed to the inner wall 34 of the device main body 8, and the upper part of the leaf spring 42 is biased inward (that is, toward the arm 31). A convex portion 43 that protrudes inward (that is, toward the arm 31) is formed on the upper portion of the leaf spring 42, and the tip of the convex portion 43 is in contact with the arm 31. Grease is applied to the convex portion 43, and the frictional force acting between the arm 31 and the leaf spring 42 is reduced.

  The arm 31 is formed with a holding hole 44 (see FIGS. 7 and 10) with which the convex portion 43 on the upper portion of the leaf spring 42 is engaged. The holding hole 44 is arranged on the trajectory where the convex portion 43 on the upper part of the leaf spring 42 abuts in the arm 31. As shown in FIGS. 3, 6, and 9, when the convex portion 43 of the leaf spring 42 is engaged with the holding hole 44, the upper panel 6 resists the weight of the upper panel 6 and the elastic restoring force of the coil spring 40. Can be held in an opened state by a predetermined opening angle (hereinafter referred to as a first opening angle). The first opening angle is, for example, in the range of 10 ° to 15 ° with reference to the angle when the upper panel 6 is completely closed. The inside of the holding hole 44 is filled with grease, and whenever the convex part 43 on the upper part of the leaf spring 42 is engaged with the holding hole 44, the grease on the surface of the convex part 43 on the upper part of the leaf spring 42 is changed. To be replenished.

  The arm 31 is formed with a plurality of speed reducing holes 46 (see FIGS. 5, 7, 8, and 10) with which the protrusions 43 on the upper part of the leaf spring 42 are engaged. In the arm 31, the deceleration holes 46 are arranged side by side at equal intervals on the locus where the upper projections 43 of the leaf springs 42 abut. The diameter of the deceleration hole 46 is smaller than the diameter of the holding hole 44. For this reason, when the convex part 43 of the upper part of the leaf | plate spring 42 engages with the holding hole 44, compared with the force required in order to cancel | release the engagement, the convex part 43 of the upper part of the leaf | plate spring 42 is the deceleration hole 46. The force required to release the engagement when engaged is small. When the upper panel 6 rotates, whenever the convex portion 43 on the upper part of the leaf spring 42 is engaged with the deceleration hole 46, the reaction force accompanying the release of the engagement acts on the arm 31, It acts as a braking force for the rotation operation of the upper panel 6. In addition, the inside of the deceleration hole 46 is filled with grease, and the grease on the surface of the convex part 43 on the upper part of the leaf spring 42 is changed every time the convex part 43 on the upper part of the leaf spring 42 is engaged with the deceleration hole 46. To be replenished.

  As shown in FIGS. 4, 7, and 10, when the upper panel 6 is fully opened, the weight of the upper panel 6 and the elastic restoring force of the coil spring 40 are balanced (hereinafter also referred to as a second opening angle). The upper panel 6 is held. The second opening angle is, for example, in the range of 75 ° to 85 ° (in other words, the angle from the horizontal plane is in the range of 5 ° to 15 °) with reference to the angle when the upper panel 6 is completely closed. . In this state, when the user further pushes down the upper panel 6 against the elastic restoring force of the coil spring 40, for example, by pulling out the table basket 9 from the inside of the apparatus main body 8, the upper panel 6 is almost 90%. It can be opened to an opening angle of ° (in other words, to a nearly horizontal angle).

  In the door structure 4 of this embodiment, the upper panel 6 is held in a state of being opened by a predetermined first opening angle by engaging the convex portion 43 on the upper part of the leaf spring 42 with the holding hole 44. As a result, as shown in FIG. 3, the upper surface operation display unit 25 arranged on the upper end surface of the upper panel 6 can be held at a position where it is easy for the user to see and operate. At this time, even if the user does not hold the upper panel 6 with one hand, the upper panel 6 is held by engaging the convex portion 43 of the upper part of the leaf spring 42 with the holding hole 44. Convenience can be further improved.

  In the door structure 4 of the present embodiment, every time the convex portion 43 of the upper part of the leaf spring 42 engages with the speed reducing hole 46 of the arm 31 with respect to the turning operation of the upper panel 6, the reaction with the release of the engagement occurs. Force acts. With such a configuration, a braking force can be applied when the upper panel 6 opens and closes vigorously, and the impact when the upper panel 6 is completely closed or fully opened can be reduced.

  In the door structure 4 of this embodiment, when the upper panel 6 is completely opened, the upper panel 6 is held at a second opening angle in which the weight of the upper panel 6 and the elastic restoring force of the coil spring 40 are balanced. For this reason, compared with the case where the upper panel 6 is hold | maintained at a substantially horizontal angle, a user can make it easy to put a hand on the handle 22. FIG. User convenience can be further improved.

  As described above, the door structure 4 of the present embodiment includes the device main body 8 and the upper panel 6 that opens and closes the front opening of the device main body 8 by rotating around the rotation axis A below the device main body 8. Corresponding to a door member). The door structure 4 further includes a leaf spring 42 (corresponding to an engaging member) fixed to the device body 8 and an arm 31 (corresponding to an engaged member) fixed to the upper panel 6. In the door structure 4, the leaf spring 42 is biased toward the arm 31, so that the leaf spring 42 and the arm 31 slide relative to each other when the upper panel 6 rotates with respect to the device body 8. It is configured. In the door structure 4, a convex portion 43 is formed on the surface of the leaf spring 42 facing the arm 31, and a speed reducing hole 46 (corresponding to a concave portion) is formed on the surface of the arm 31 facing the leaf spring 42. . In the door structure 4, the deceleration hole 46 of the arm 31 is arranged on a locus drawn by a point where the convex portion 43 of the leaf spring 42 abuts when the upper panel 6 rotates with respect to the device body 8.

  In the above embodiment, the case where the through-hole (deceleration hole 46) is formed in the arm 31 as the concave portion of the arm 31 has been described. However, as the concave portion of the arm 31, the convex portion 43 protrudes by drawing or half punching. You may form so that it may be dented in the direction to do.

  In the above embodiment, the configuration in which the convex portion 43 is formed in the leaf spring 42 and the concave portion (the deceleration hole 46) is formed in the arm 31 has been described. The arm 31 may be formed with a convex portion.

  In the above embodiment, the leaf spring 42 fixed to the device main body 8 is urged toward the arm 31, so that the plate spring 42 and the arm are rotated when the upper panel 6 rotates with respect to the device body 8. The configuration in which the 31 slides with each other has been described. Unlike this, the leaf spring fixed to the arm 31 is biased toward the outer wall 32 or the inner wall 34 of the device main body 8, so that the plate is rotated when the upper panel 6 rotates with respect to the device main body 8. The spring and the outer wall 32 or the inner wall 34 may be configured to slide relative to each other. In this case, one of the convex portion and the concave portion is formed on the leaf spring, and the other of the convex portion and the concave portion is formed on the outer wall 32 or the inner wall 34 of the device body 8.

  In the above embodiment, the configuration in which the door structure 4 is applied to the dishwasher 2 has been described as an example. However, the door structure disclosed in the present specification can be applied to various devices other than the above. The door structure disclosed in the present specification can be applied to any device such as a grill, a range, and a refrigerator as long as the device opens and closes the front opening of the device main body with a door member.

  Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above. In addition, the technical elements described in the present specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology exemplified in this specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

2 Dishwasher 4 Door structure 6 Upper panel 8 Main body 10 Operation panel 12 Decorative plate 14 Lower panel 15 Decorative plate 20 Through hole 22 Handle 24 Front operation display unit 25 Upper operation display unit 26 Exhaust nozzle 28 Engagement fitting 30 Engagement Part 31 arm 32 outer wall 34 inner wall 36 support member 38 link mechanism 40 coil spring 42 leaf spring 43 convex part 44 holding hole 46 deceleration hole

Claims (4)

The device body,
A door structure provided with a door member that rotates around a lower rotation axis with respect to the device body and opens and closes the front opening of the device body,
An engagement member fixed to one of the device body and the door member;
It further includes an engaged member fixed to the other of the device main body and the door member,
One of the engaging member and the engaged member is biased toward the other of the engaging member and the engaged member, so that when the door member rotates with respect to the device main body, The engaged members are configured to slide relative to each other,
A convex portion is formed on the surface of the engaging member facing the engaged member,
A recess is formed on the surface of the engaged member that faces the engaging member,
The door structure in which the recessed portion of the engaged member is disposed on a locus drawn by a point where the protruding portion of the engaging member abuts when the door member rotates with respect to the device main body.   The door structure according to claim 1, wherein the engaged member has a plurality of the concave portions.   The door structure according to claim 1 or 2, wherein the engaged member is an arm that is fixed to the door member and supports the door member so as to be rotatable about a rotation axis with respect to the apparatus main body.   A dishwasher incorporated in a system kitchen, the dishwasher having the door structure according to any one of claims 1 to 3.

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