JPH0735975U - Door handle - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] A door handle that is not damaged or worn when the door is opened and closed, and that the door is locked securely and that the door can be operated easily and safely and economically. provide. [Structure] A handle body 2 attached to a door of a refrigerator or the like, a lever 3 attached to the handle body, a receiving member 26 fixed to a case of the refrigerator or the like, and a latch engaging with the receiving member 26. An arm lever 8 for engaging and disengaging between a lever 3 and a latch 11 in a door handle 1 having
The handle body 2 is pivotally supported so as to be rotatable parallel to the surface of the door,
One end is provided with a pair of L-shaped latches 11 having symmetrical taper surfaces, and the arm lever 8 pushes the tapered surface 11b of the latch by rotating the lever 3 to engage and disengage the latch 11. The door handle 1 is further provided with an auxiliary lever 4 coaxially with the pivot of the lever 3 along the outer side of the lever 3 and having a key mechanism for restricting the rotation of the auxiliary lever 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door handle provided on a single-sided door of a large-sized housing such as a refrigerator.

[0002]

[Prior art]

 In a door that is attached to a large housing such as a refrigerator so that it can be opened and closed with a single opening, a door handle that opens and closes by operating the handle of this door is, for example, the one shown in FIG. 10 is known. ing. In FIG. 10, a guide cylinder 52 is provided at the tip of a handle body 51 fixed to the door 20, and a latch rod 53 is axially slidably inserted in the guide cylinder 52. A compression coil spring 54 is mounted between the inner bottom surface of the guide cylinder 52 and the inner end surface of the ratchet bar 53, and biases the latch bar 53 in a direction projecting from the guide cylinder 52. Further, a lever 56 is rotatably attached to the handle body 51 via a support shaft 55, and the tip of the lever 56 is bent into an L shape to lock a pin 57 planted in the latch rod 53. ing. The lever 56 is urged to rotate counterclockwise by a lever spring 58 provided in the handle body 51.

In the above structure, when the door 20 is rotated in the direction of the arrow 60 to close the opening of the casing (not shown), the latch rod 53 passes over the money receiver 59 fixed to the casing, The door 20 is held in the closed state by being engaged with the money receiving 59. When the door 20 is opened, the lever 56 is gripped together with the handle main body 51 and rotated in the direction of arrow 61. As a result, the L-shaped bent tip of the lever 56 moves the latch rod 53 in the direction of the arrow 62 via the pin 57, and the engagement between the latch rod 53 and the receiving metal 59 is released. In this state, the door 20 can be opened.

Further, as another door handle, one shown in FIG. 11 is known (Japanese Utility Model Publication No. 63-42303). In this door handle, a latch 64 is rotatably provided in the front end of the handle body 51 via a support shaft 65, one end 64a of the latch 64 is engaged with one end of the lever 56, and the other end of the latch 64 is engaged. Further, a hook portion 64b that can be engaged with the receiving money 59 is provided. Further, the latch 64 is biased counterclockwise about the support shaft 65 by a compression coil spring 66 provided in the handle 51, and one end 64a of the latch 64 is always in contact with one end of the lever 56. In this structure, when the door 20 is closed, as shown in FIG. 11, the hook portion 64b provided at the tip of the latch 64 engages with the catch 59 to hold the closed door. Further, when the door is opened, the latch 64 is pushed in the direction of the arrow 63 by gripping the lever 56 as in the case of the conventional example shown in FIG. 10, and the hook portion 64b and the catch 59 are engaged. It can be unlocked and opened.

Further, in the above-mentioned conventional door handle, a key mechanism is provided on the door separately from the door handle in order to manage the contents in the refrigerator or the like, and the key is opened each time the door is opened and closed. It was tightened.

[0006]

[Problems to be solved by the device]

 However, in each of the door handles described above, the biasing force of the compression coil spring 54 or 66 must be increased in order to reliably maintain the closed state when the door is closed. For this reason, when the door is closed, the door 20 has to be turned to the opening side of the housing 22 with a strong force, and the operability is poor. Moreover, there is a problem in that the latch bar 53, the latch 64, the catch 59, etc. are damaged or worn due to the impact when the door is closed.

[0007] Furthermore, a key mechanism is arranged on the outer side of the door for managing items in the refrigerator or the like. In this case, however, the key mechanism is arranged separately from the door handle. The key operation was complicated, and the number of parts was large, which was uneconomical.

[0008] Furthermore, when a worker or the like is confined in the refrigerator, there is a risk that the worker cannot operate the door key from the inside of the refrigerator, which makes it difficult to escape. To be done.

The present invention has been made in view of such a situation, and an object thereof is to open and close a door with a small force, and therefore to prevent damage and wear of each component. It is an economical door handle that can be kept closed when it is closed, and it is easy to operate the key for the door to manage the contents inside the refrigerator, and it is safe to use. Is to provide a handle.

[0010]

[Means for Solving the Problems]

 In order to achieve the above object, the first aspect of the present invention is to provide a receiving metal fixed to a housing such as a refrigerator and a handle main body attached to a door rotatably attached to one end of an opening of the housing. A door handle that is detachably engaged with a latch that is provided along the inside and one end of which is rotatably attached to the handle body and that is rotated by the operation of a lever, wherein the door handle is the lever. And an arm lever that engages and disengages the latch with the latch, and a latch with a tapered surface pivotally supported on the handle body so as to be rotatable parallel to the surface of the door. The arm lever presses the tapered surface of the latch by the rotation of the lever, and causes the latch to engage and disengage from the latch.

In a second aspect based on the first aspect, the door handle has an auxiliary lever coaxially with a pivot of the lever along an outer side of the lever, and restricts rotation of the auxiliary lever. It further comprises a key mechanism for

[0012]

[Action]

 According to the present invention, the door handle is pivotally supported on the handle body so as to be rotatable in parallel to the door surface and the arm lever for engaging and disengaging the latch and the catch between the lever and the latch. , The one end is provided with a latch having a tapered surface, and the arm lever presses along the tapered surface of the latch by the rotation of the lever to disengage and rotate the latch. In the closed state, the tip of the latch is close to the receiver and is locked by the receiver fixed to the housing, and the door is locked by the housing in the closed state through the receiver. . When the lever attached to the handle body is gripped and rotated together with the handle body, the arm lever engaged with the lever also rotates, and the arm lever pushes along the tapered surface of the latch attached to the pedestal. The component force causes the latch to rotate in the direction in which the tip opens, and as a result, the tip of the latch disengages from the receiver and the door can be opened.

Therefore, in the door handle according to the present invention, when the door is opened and closed, the lever only has to be rotated, and since there is almost no impact force applied to the money reception, the latch or the money is worn or damaged. Can be prevented. At this time, since the latch is stored in the handle body, the cover for the latch is not required, and the door can be made thin.

Further, since the door handle according to the present invention has an auxiliary lever that is coaxial with the lever along the outside of the lever and has a key mechanism that restricts the rotation of the auxiliary lever, When locked, the door cannot be opened by simply pulling the handle on the outside of the cabinet, and the door can be easily opened from the inside of the cabinet by pressing the lever from the inside of the cabinet via the emergency release device. The key operation is easy and it is safe to use because no one is trapped inside the cabinet.

[0015]

【Example】

 Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is a partially omitted sectional view showing an embodiment of a door handle according to the present invention, FIG. 2 is a partially omitted sectional view for explaining the operation of the door handle of FIG. 1, and FIG. 3 is an opening / closing of a latch in FIG. 2 is a sectional view taken along the line I-I in FIG. 2, FIG. 5 is a part view of the arm lever in the embodiment of the door handle shown in FIGS. 1 and 2, (A) is a front view, (B) ) Is a plan view, (C) is a right side view, FIG. 6 is a front view showing another embodiment of the spring for the door handle latch according to the present invention, and FIG. 7 is a sound-deadening rubber for the door handle latch according to the present invention. FIG. 8 is a plan view showing an attached state, showing only one side of a pair of latches, FIG. 8 is a partially omitted sectional view showing another embodiment of the door handle according to the present invention, and FIG. 9 is a view showing the embodiment in FIG. It is explanatory drawing which shows the lever and an auxiliary lever, and the principal part of a key mechanism, (A) is front sectional drawing, (B) is a lock rod of a key mechanism, Is an exploded perspective view showing the relationship between the bar 及 beauty aid lever.

In FIG. 1, the handle body 2 is fixed to the door 20 at one side base end 2a thereof by fitting a nut 30d of an emergency release device 30 and a guide cylinder 30e, which will be described later, toward the center of the tip thereof. A locking piece 2c fixed to the pedestal 2b with a screw is fixed to a locking piece 20a fixed to the door 20 with a screw. Further, the handle body 2 is provided with a lever 3 in the longitudinal direction, and one end of the lever 3 is rotatably supported by a pivot 5 provided on the inner surface near the tip of the handle body 2. A lever spring 6 is mounted between the inner surface of the handle body 2 and the lever 3 to urge the lever 3 to rotate counterclockwise. Further, an arm lever 8 is rotatably provided in the handle main body 2 via a pivot 9, and one end of the arm lever 8 engages with an engaging portion 3a which is a position where the lever 3 is aligned. The other end of 8 is engaged with an engaging portion 11a which is a position where the latches are aligned. It should be noted that FIG. 5 shows a part diagram of the arm lever 8 to help understanding of FIGS.

Further, a pedestal 12 is provided on the inner surface of the tip portion of the handle body 2 in the direction perpendicular to the surface of the door 20 in the vicinity of the pivot 5, and a pair of latches 11 are provided with screws 14 at the tip of the pedestal 12. It is rotatably attached in a direction parallel to the surface of the door 20. The latch 11 is formed in an L shape, and a spring 13 for urging the tip toward the direction of approaching is attached to one side of the latch 11 parallel to the surface of the door 20 as shown in FIG. . Furthermore, as shown in FIG. 4, a tapered surface 11b inclined inward is provided symmetrically at the tip of one side parallel to the axis of the pedestal 12.

On the other hand, on the one side of the front surface of the opening portion 23 of the housing 22, a money receiver 26 is attached to the housing 22 in parallel with the front surface via an L-shaped money holding piece 27 and a seat 28. Receiving metal 26 has a ridge-shaped blade 26b of pedestal 26a of receiving metal 26 and a ridge-shaped blade 27a of L-shaped metal receiving support piece 27 which are screwed together to fix a screw to a long hole formed in pedestal 26a. The position of the catch 26 can be adjusted in a direction perpendicular to the door surface by adjusting the stop position, and the catches 26 are engaged when the tips of the latches 11 come close to each other. A portion 26c of the catch 26 which engages with the latch 11 is formed in a flat shape so that the engaging portion 11c of the latch 11 can be easily engaged. A long hole is formed in the base portion 27b of the L-shaped receiving member 27 so that it can be adjustably fixed along the groove of the receiving seat 28 in a direction parallel to the door surface. The engagement depth between the mating portion 11c and the engaging portion 26c of the receiving member 26 can be adjusted. A pin 28b is planted in the base portion 28a of the seat 28, fitted into a fixing hole of the opening frame 24, and fixed by a fixing bolt 40b of the double safety device 40.

The emergency release device 30 inserts the push rod 30b fixed to the handle 30a from the inside of the storage via the spring 30c into the synthetic resin guide cylinder 30e that penetrates the synthetic resin nut 30d and the door 20. However, the push rod 30b is fixed by the pin 30f, and the push rod 30b is always biased toward the inside of the refrigerator by the spring 30c.

The double safety device 40 has a handle 40a arranged inside the refrigerator and a fixing bolt 40b fixed to the handle 40a, and the receiving plate 27 and the receiving plate 28 are fixed by a nut 40c.

Next, the operation of the door handle of this embodiment having the above configuration will be described. In FIG. 2, when the door 20 is closed with respect to the housing 22, the pair of latches 11 have the tip engaging portions 11c close to each other due to the urging force of the spring 13, and thus the latches fixed to the housing 22. The door 20 is held in a closed state by engaging with 26. When the door 20 is opened, the lever 3 is gripped together with the handle body 2 against the biasing force of the lever spring 6, and the lever 3 is rotated clockwise about the pivot shaft 5. At this time, the arm lever 8 is pressed by the lever 3 via the engaging portion 3a and rotated clockwise around the pivot 9, and the tip 8a of the arm lever reaches the raised position shown by the chain double-dashed line.

As a result, the tip 8a of the arm lever 8 moves in the direction of the arrow 10 along the taper surface 11b of the latch 11 as shown in FIG. 4, and the latch 11 as shown in FIG. The screw 14 is rotated in the direction of the arrow 15 against the biasing force of the spring 13, and the catch 26 is expanded to a position where it can pass between the pair of engaging portions 11c. Then, the front end engaging portion 11c of the latch 11 is released from the catch 26 and unlocked, and the door 20 can be opened in this state. When the door 20 is closed again, the lever 3 is grasped and the tip engaging portion 11c of the latch 11 is retracted from the receiving metal 26, and the door is closed. When the lever 3 is released, the lever 3 biases the lever spring 6. By this, the arm lever 8 is rotated counterclockwise, the regulation from the engaging portion 3a is released, and the arm lever 8 is returned counterclockwise by the biasing force of the spring 13 of the latch 11, and the tip engaging portion of the latch 11 is released. 11c approaches and is locked by engaging with the receiving metal 26.

According to the present embodiment, when the door 20 is opened and closed, the lever 3 is rotated, and the latch 11 is rotated via the arm lever 8, so that the receiving money 26 on the housing 22 side and the handle body 2 side are rotated. Since it is only necessary to engage or disengage with the latch 11, the impact force is not applied to the latch 26, and it is possible to prevent the latch 26 and the latch 11 from being worn or damaged, and moreover, to be sure when the door is closed. The closed state can be maintained. Further, since the latch 11 is housed in the handle main body 2, a cover for the latch 11 is not required and the door 20 can be made thin.

Next, referring to FIG. 1, the operation of the emergency canceling device 30 provided on the door 20 side will be described. When the worker is trapped in the refrigerator for some reason, the push rod 30b rotates one end of the lever 3 in the clockwise direction by pressing the handle 30a against the spring 30c. The state becomes the same as when gripped, and the engaging portion 3a of the lever 3 pushes one end of the arm lever 8 and the other end of the arm lever 8 pushes along the tapered surface 11b of the latch 11 and the end portion of the latch 11 engages. Since the joint portion 11c is rotated in the direction of the arrow 15 in FIG. 3, the end engaging portion 11c of the latch is disengaged from the receiving metal 26, the door 20 can be opened, and the worker trapped in the refrigerator is safe. You can escape to.

Further, when the emergency release device 30 does not work normally due to failure, freezing, etc., the handle 40a of the double safety device 40 attached to the housing 22 side is rotated to set the fixing bolt 40b. When the fitting with the nut 40c is disengaged, the money receiving support piece 27 and the money receiving piece 26 come off from the seat 28 and fall off, so that the latch 11 becomes free, the door 20 is opened, and the door 20 is closed. The worker can escape safely.

FIG. 6 shows another embodiment of the door handle latch spring according to the present invention, in which the spring 13 is fitted to the tip end side of the pedestal 12 with the pedestal as an axis, and one end 13a has a pair of latches. The engaging portions 11c of 11 are rotationally biased in a direction in which they approach each other (a direction opposite to the arrow 15 in FIG. 3), and the other end is fixed to the pedestal 12.

FIG. 7 shows a rubber attached state for canceling the collision noise generated when the door handle latch according to the present invention is operated, and shows only one side of the pair of latches 11. The other side of the latch 11 is provided in symmetry with the center line 7 in this figure. Then, a sound deadening rubber 11d is attached to the outside of the vicinity 11e of the latch 11 opposite to the engaging portion 11c. As a result, when the door is opened and closed, the sound and impact of the latch 11 and the handle body are mitigated.

FIG. 8 is a partially omitted sectional view showing another embodiment of the door handle according to the present invention. The door handle of FIG. 8 has an auxiliary lever 4 coaxially with the pivot 5 of the lever 3 along the outside of the lever 3 of FIG. 1, and has a key mechanism 16 for restricting rotation of the auxiliary lever 4. It is a thing. As shown in FIGS. 9 (A) and 9 (B), the lock rod 17 has a vertically elongated protrusion 17a at its tip and a round protrusion 17b at its lower adjacent portion. On the other hand, the lever 3 is provided with a round hole 3b into which the vertically elongated protrusion 17a and the round protrusion 17b of the lock bar 17 are loosely fitted, and the auxiliary lever 4 is provided with a vertically elongated hole 4a. , When the vertical protrusion 17a of the lock bar 17 is directed in the direction of the vertical hole 4a of the auxiliary lever 4 (direction of arrow 18 in the figure), it is loosely fitted, and when it is oriented in the direction perpendicular to the vertical hole 4a, the vertical protrusion 17a 17a is neither loosely fitted nor fitted in the vertically elongated hole 4a. Therefore, when the vertical protrusion 17a of the lock bar 17 is fixed toward the vertical hole 4a of the auxiliary lever 4, both the lever 3 and the auxiliary lever 4 rotate clockwise to open the door. . When the vertical protrusion 17a of the lock bar 17 is fixed in a direction perpendicular to the direction of the vertical hole 4a of the auxiliary lever 4, the lever 3 rotates, but the auxiliary lever 4 does not rotate and the door is opened. Don't door

The present invention has been described in detail with reference to the illustrated embodiments. However, the present invention is not limited to these embodiments by using it. For example, in the above-described embodiments, the latch 11 includes a pair of L's. Although it has a shape, it may have a single L shape. Thus, it goes without saying that various modifications can be made without departing from the spirit of the invention.

[0030]

[Effect of device]

 According to the first aspect of the present invention, the door handle includes an arm lever that engages and disengages the latch and the latch by the rotation of the lever, and a shaft that pivots in parallel with the surface of the door. It is supported and has a latch having a tapered surface at one end, and the arm lever presses the tapered surface of the latch by the rotation of the lever to disengage and rotate the latch. The door can be opened and closed with, so that damage and wear of each component can be prevented, and the closed state can be reliably maintained when the door is closed.

According to the second aspect of the present invention, the door handle has an auxiliary lever coaxial with the pivot of the lever along the outside of the lever, and has a key mechanism for restricting rotation of the auxiliary lever. Therefore, in addition to the effects of the first invention, the key operation for managing the contents in the refrigerator and the like is easy, and the workers are not trapped in the refrigerator, which is safe for use. It is an economical door handle.

[Brief description of drawings]

FIG. 1 is a partially omitted sectional view showing an embodiment of a door handle according to the present invention.

FIG. 2 is a partially omitted cross-sectional view illustrating an operation of the door handle of FIG.

FIG. 3 is a plan view of relevant parts showing an opened / closed state of the latch in FIG.

FIG. 4 is a sectional view taken along line I-I in FIG.

5A and 5B are parts views of the arm lever in the embodiment of the door handle of FIGS. 1 and 2, (A) is a front view, (B) is a plan view,
(C) is a right side view.

FIG. 6 is a front view showing another embodiment of the door handle latch spring according to the present invention.

FIG. 7 is a plan view showing a state in which the sound deadening rubber of the door handle latch according to the present invention is attached and only one side of the pair of latches is shown.

FIG. 8 is a partially omitted sectional view showing another embodiment of the door handle according to the present invention.

9 is an explanatory view showing a main part of a lever and an auxiliary lever and a key mechanism of the embodiment in FIG. 8, (A) is a front sectional view,
(B) is an exploded perspective view showing the relationship between the lock rod of the key mechanism and the lever and auxiliary lever.

FIG. 10 is a partially omitted sectional view showing a door handle according to a conventional technique.

FIG. 11 is a partially omitted sectional view showing another door handle according to the related art.

[Explanation of symbols]

 1 Door Handle 2 Handle Main Body 3 Lever 4 Auxiliary Lever 5 Axis 8 Arm Lever 11 Latch 11b Tapered Surface 16 Key Mechanism 20 Door 22 Housing 23 Opening 26 Receiving

Claims (2)

[Scope of utility model registration request] 1. A receiving member fixed to a case such as a refrigerator, and one end provided along an inner side of a handle body attached to a door rotatably attached to one end of an opening of the case. In a door handle in which a latch that is pivotally mounted to the handle body and that is pivoted by operating a lever is releasably engaged, the door handle receives the pivot of the lever and the latch. The arm lever is provided with an arm lever for engaging and disengaging the money and a latch having a tapered surface pivotally supported by the handle body so as to be rotatable in parallel to a surface of the door. A door handle, characterized in that the lever is rotated to press the tapered surface of the latch to engage and disengage the latch with respect to the latch. 2. The door handle according to claim 1, wherein the door handle further includes an auxiliary lever coaxial with a pivot of the lever along an outer side of the lever, and further includes a key mechanism for restricting rotation of the auxiliary lever. A handle for a door, which is characterized by being provided.