CN1155034A - Device for opening door in two sides - Google Patents

Abstract

The present invention provides a door opening device, comprising: hinge pins located at opposite ends of a door or body; An incoming pin slot; a pair of clasps located in the pin slot, the clasps being movable between a snapped and a snapped position, in which case the clasps hold the hinge pin In the pin slot, the clasp allows the hinge pin to disengage from the pin slot when in the tripped position; a latch that secures one of the clasps in the tripped position and the other in the clasped position The latch device, and a steering handle for manipulating the latch device.

Description

Door opener on both sides

The present invention relates to a double door opening device and a refrigerator equipped with such a device.

Doors are an essential part of structures such as houses, furniture or household appliances such as microwave ovens and refrigerators. Ordinary doors have a hinge on the left or right and a handle on the other; thus they are generally designed to open or close only on one side of the door. Therefore, since this door can only be opened on one side, it will cause inconvenience for right-handed people or left-handers.

Moreover, since the opening direction of the door is fixed, the placement position of the door appliance is limited and the space cannot be effectively used.

In order to eliminate the above disadvantages, some patents, such as European Patent Publication No. 0501021, U.S. Patent No. 3,889,419, U.S. Patent No. 4,503,582, U.S. Patent No. 4,507,883 and U.S. Patent No. 5,064,255, disclose several devices that can open doors from both sides.

The mechanism of above-mentioned door opening device from both sides is more complicated. In these devices, when one side of the door is pulled open, the other side of the door acts as a hinge.

At the same time, in the use of household appliances, depending on the main user or its placement position, the door can only be opened from the left or right. Therefore, the existing door opening device has not fully realized the ability to be opened from either side. Superbly functional yet superfluous and not very useful.

Furthermore, in existing double-sided door openers, many precise parts are used to ensure that either side is accurately converted to the hinged state and the door does not fall off when the door is opened. Therefore, the manufacturing cost of the device is relatively high, and as the components wear out due to long-term use and thus lose their original precision, the device is likely to fail and cannot ensure the safety of use.

The present invention is to overcome the above-mentioned problems in the prior art. Therefore, an object of the present invention is to provide a kind of door that can be selected (with a switch) by the user to only open the required side in the two sides of the door, and it is relatively simple to make so that the cost of production is low. Low side openers.

The second object of the present invention is to provide a refrigerator equipped with the above-mentioned two-sided door opening device.

Above-mentioned object realizes with a door opening device that is contained in the door opening of appliance main body, comprises: at least one pair is positioned at door or this main body opposite two ends and is used as the hinge pin of the pivot of door opposite to each other; housing on the door or body having hinge pins, the housing having pin slots for the hinge pins to enter; a pair of hinge pin fastening devices located at the respective pin slots, the pair of fastening devices being capable of The locking device moves between a locked position and a tripped position. The locking device blocks the tripping path of the pin slot in the locked position and buckles the hinge pin in the pin slot, and allows the hinge pin to break away from the pin when it is in the tripped position. slot; a latch means for securing one of the two clasping means in the tripped position and the other clasping means in the buckled position; and a steering handle for manipulating the latch means from the outside.

The latch means may be a bar-shaped latch positioned to slide between the fastening means so that its opposite ends are selectively abutted against the fastening means. The door opening device may also include a positioning device for fixing the latch. The locating device may include a locating protrusion protruding from the latch and a locating piece fixed on the casing. The locating piece is elastically deformable and has a locating groove engaged with the locating protrusion.

According to a preferred embodiment, the hinge pin clasp includes a hinge pin fastener having a pin receiving groove partially receiving the hinge pin thereon, which is rotatable about a pivot between a latched position and an unlatched position and a spring that pushes the fastener toward the unlatched position, the latch device selectively preventing one of the fasteners from rotating from the engaged position to the disengaged position. In this case, the latch device may be a bar-shaped latch designed to slide between two fasteners, both of which have an abutment surface that abuts against the corresponding end of the latch so as not to rotate .

According to another preferred embodiment, the hinge pin fastening device includes a pair of hinge pin fasteners arranged at two pin slots and a spring pushing the fasteners to the buckled position, and the two sides of the pair of fasteners have inclined surfaces, so that As the hinge pin is pushed into or pulled out of the pin slot, it can slide between a buckled position and a tripped position, and the latch means bears one of the two catches against the buckled position. In this example, the latch device may be a rod-shaped latch designed to slide between the two fasteners, and the two top ends of the latch hold the fasteners against the buckled position.

Meanwhile, in another aspect, the present invention also provides a refrigerator equipped with the above-mentioned door opening device.

The invention, together with its objects and advantages, may be better understood from the following description taken in conjunction with the accompanying drawings. In the attached picture:

Fig. 1 is the perspective view of the refrigerator equipped with the door opening device of the present invention;

Fig. 2 is a partially exploded perspective view of the door opening device according to the first embodiment of the present invention;

Fig. 3 is a plan view of the door opening device shown in Fig. 2 when the door is closed, wherein the right side of the door is bolted;

Fig. 4 is a plan view of the door opening device when the door in Fig. 3 is opened;

Figure 5 is a plan view of the door opening device shown in Figure 2 when the door is closed, wherein the left side of the door is bolted;

Figure 6 is a plan view of the door opening device when the door in Figure 5 is opened;

7 is a partially exploded perspective view of a door opening device according to a second embodiment of the present invention;

Figure 8 is a plan view of the switchgear of Figure 7 with the door closed, wherein the right side of the door is latched;

Fig. 9 is a plan view of the door opening device when the door in Fig. 8 is opened;

Figure 10 is a plan view of the door opening device in Figure 7 when the door is closed, wherein the left side of the door is bolted;

Fig. 11 is a plan view of the door opening device in Fig. 10 when the door is opened.

The present invention is described in detail below in conjunction with accompanying drawing.

Fig. 1 is a perspective view of a refrigerator equipped with a door opening device of the present invention. The refrigerator includes a main body 1 having a refrigerating chamber and a door 2 on the front of the main body 1 for opening/closing the door opening. Another door 3 on the top is used for the freezer above the refrigerator. The door 2 is slightly opened in FIG. 1, and the left and right sides of the door 2 have handles 5a and 5b respectively for opening the door 2 from either side.

There is a vertically extending hinge pin at each of the four corners of the refrigerator compartment. FIG. 1 shows the upper left and lower right hinge pins 7b therein. The hinge pin 7b is fixed on the bracket 8b and protrudes from the main body 1 . The top of the door 2 has a steering handle 9 for selecting the opening direction of the door 2 . The steering handle 9 is exposed above the door 2 .

Fig. 2 is a partially exploded perspective view of the door opening device of the first embodiment of the present invention installed at the upper and lower ends of the door 2; Fig. 3 is a plan view of the door opening device, wherein the door is closed and the right side of the door is bolted; Fig. 4 is the door of the door Plan view of the door opener when left open.

As shown in these drawings, the double-sided door opening device includes a housing 10 fixed to the upper or lower side of the door 2 and covered by a cover 11 . The housing 10 has pin slots 13a and 13b at opposite ends so that the corresponding hinge pins 7a and 7b of the main body 1 can be pushed into or pulled out of the pin slots 13a and 13b. The middle part of the cover 11 has an elongated handle groove 15 extending longitudinally. The steering handle 9 can move in the handle groove 15 .

At the location of each pin slot 13a and 13b there is a hinge pin retainer 20a and 20b. The clasps 20a and 20b have pin receiving grooves 23a and 23b for receiving the hinge pins 7a and 7b and fastening them in the pin grooves 13a and 13b. Clasps 20a and 20b are rotatable about pivot pins 21a and 21b.

Therefore, along with the rotation of the fasteners 20a and 20b, the fastened state in which the hinge pins 7a and 7b shown in Figure 3 are buckled in the pin grooves 13a and 13b can be transformed into the hinge pins 7a and 7b shown on the left side of Figure 4 with the pins. A tripped state in which the slots 13a and 13b are separated and tripped. As shown in FIG. 3, when the hinge pins 7a and 7b enter the pin grooves 13a and 13b again, the buckled state is maintained.

Hinge pin fasteners 20a and 20b are elastically pushed by pivot springs 27a and 27b to pivot to the position where pin receiving grooves 23a and 23b shown on the left side of FIG. 4 face pin grooves 13a and 13b and are ready to receive hinge pins. Therefore, the hinge pins 7a and 7b can smoothly enter the pin receiving grooves 23a and 23b of the hinge pin fasteners 20a and 20b when the door is changed from the open state to the closed state. Then, when the door is closed, the hinge pin fasteners 20a and 20b buckle the hinge pins 7a and 7b around the pivot axis to buckle the hinge pins 7a and 7b to buckle the position because of being pushed into the power of the pin grooves 13a and 13b by the hinge pins 7a and 7b; When opened, the hinge pin catches 20a and 20b are pivoted to a tripped position ready to receive the hinge pins due to the force of pulling the hinge pins 7a and 7b out of the pin slots 13a and 13b.

Between the pin slots 13a and 13b is a long bar-shaped latch 30 slidable in the longitudinal direction. The latch 30 passes through the handle groove 15 and is connected to the steering handle 9 exposed outside, so that the latch can be slid by manipulating the steering handle 9 .

There is also a lateral positioning protrusion 31 on the latch 30 . A positioning member 16 is fixed on the housing 10, and the positioning member 16 has two positioning grooves 17a and 17b for the positioning protrusion 31 to be embedded in. The positioning member 16 is a plate made of elastic material.

When the latch 30 is moved by the steering handle 9, the positioning member 16 is elastically deformed so that the positioning protrusion 31 of the latch 30 can be inserted into one of the two positioning grooves 17a and 17b. The retainer 16 prevents movement of the latch 30 in an undesired direction.

When the door 2 is closed and the latch 30 is moved to the left or right with the steering handle 9, the positioning protrusion 31 is embedded in one of the positioning grooves 17a and 17b, so that the opposite top ends of the latch 30 abut against the left or right hinge pin The abutment surfaces 24a and 24b of the fasteners 20a and 20b.

FIG. 3 shows that the latch moves to the right and abuts against the abutment surface 24a of the right buckle 20a receiving the hinge pin. At this time, the right hinge pin fastener 20a cannot rotate around the pivot from the position of buckling the hinge pin 7a in the pin slot 13a to the release position. At the same time, the left hinge pin fastener 20b can freely rotate around the pivot, so the hinge pin 7b can be pushed into the pin groove or pulled out therefrom without any hindrance. That is to say, the right side of the door 2 remains in the hinged state all the time, and the left side of the door 2 can be opened and closed freely. Thus, the left side of the door 2 can be closed as shown in FIG. 3 or opened as shown in FIG. 4, while the right side is only used as a hinge.

5 and 6 show the open and closed states of the latch 30 moving to the left to latch the left hinge pin catch 20b. At this time, contrary to FIGS. 3 and 4 , the right side of the door can be freely opened or closed, while the left side serves as a secure hinge.

As can be seen from the above structure, the latch 30 can be moved to the side opposite to the side where the door will be opened with the steering handle 9 and the door can be opened on this side. When the door is opened, the hinge pin fastener rotates around the pivot to a position ready to abut against the hinge pin, so that the latch cannot move to the opening side and cannot abut against the abutment surface of the pin chain pin fastener. Thereby the latch on the side that acts as a hinge cannot be released, so the hinge never releases when the door is opened.

Fig. 7 is a partially exploded perspective view of a door opening device according to another embodiment of the present invention; Fig. 8 is a plan view of the door opening device, wherein the right side of the door is latched when the door is closed; Fig. 9 is a view of the door opening device when the door is opened on the right side floor plan.

As shown in these drawings and same as the embodiment shown in FIGS. There are pin grooves 113a and 113b at opposite ends of the housing 110 so that the hinge pins 107a and 107b of the main body 101 can be pushed into or pulled out from the pin grooves 113a and 113b.

Hinge pin fasteners 120a and 120b are located beside the pin slots 113a and 113b, respectively. Hinge pin retainers 120a and 120b retain hinge pins 107a and 107b in pin slots 113a and 113b. The hinge pin fasteners 120 a and 120 b are slidable in the longitudinal direction of the housing 110 . The elastic force of the springs 127a and 127b supported by the spring holder 119 protruding from the bottom surface of the housing 110 pushes the hinge pin fasteners 120a and 120b toward the pin slots 113a and 113b.

Hinge pin fasteners 120a and 120b have slopes 121a and 121b inclined relative to the direction in which hinge pins 107a and 107b enter pin slots 113a and 113b, so that when hinge pins 107a and 107b enter pin slots 113a and 113b, they overcome springs 127a and 127b. The elastic force of 127b moves in reverse. Then, after all of the hinge pins 107a and 107b enter the pin grooves, the hinge pin fasteners 120a and 120b, which reversely move during the hinge pin entering the pin groove, move back to their original positions due to the elastic force of the springs 127a and 127b.

The hinge pin fasteners 120a and 120b also have ramps 122a and 122b on the side where the hinge pins 107a and 107b exit the pin slots. Accordingly, when the hinge pins 107a and 107b are withdrawn from the pin slots 113a and 113b, the hinge pin catches 120a and 120b move back and forth accordingly.

Between the pin slots 113a and 113b, there is a bar-shaped latch 130 that can slide longitudinally along it. There are guide portions 132a and 132b at the opposite top ends of the latch 130 to receive the hinge pin fasteners 120a and 120b and to guide the sliding of the hinge pin fasteners 120a and 120b. Slide longitudinally into guides 132a and 132b.

Compression springs 135a and 135b, which urge the hinge pin fasteners 120a and 120b toward the pin grooves 113a and 113b, are interposed between the hinge pin fasteners 120a and 120b and the bottom surfaces of the guide portions 132a and 132b. Compression springs 135a and 135b push hinge pin catches 120a and 120b with much less force than springs 127a and 127b push hinge pin catches 120a and 120b toward pin slots 113a and 113b relative to housing 110 .

The hinge pins 120a and 120b have positioning pins 133a and 133b protruding transversely with respect to their moving directions. The guide portions 132a and 132b of the latch 130 have positioning pin grooves 134a and 134b corresponding to the positioning pins 133a and 133b. The positioning pin slots 134a and 134b extend along the moving direction of the hinge pin fasteners 120a and 120b. Accordingly, the range of movement of the hinge pin catches 120a and 120b in the guide portions 132a and 132b of the latch 130 is limited.

The latch 130 is connected to the exposed steering handle 109 through the handle groove 115 , so the latch 130 can be moved by using the steering handle 109 . There is also a lateral positioning protrusion 131 on the latch 130 . A positioning piece 116 is fixed on the housing 110, and the positioning piece 116 has two positioning slots 117a and 117b for the positioning protrusion 131 to be embedded in. The positioning member 116 is a plate made of elastic material.

When the latch 130 is moved longitudinally by the steering handle 109, the positioning member 116 is elastically deformed so that the positioning protrusion 131 of the latch 130 can be inserted into one of the two positioning grooves 117a and 117b. The retainer 116 prevents the latch 130 from moving in an undesired direction.

When the door 2 is closed and the latch 130 is moved to the left or the right with the steering handle 109, the positioning protrusion 131 is embedded in the positioning grooves 117a and 117b on the right or left side of the positioning component 116, thereby being fixed on the hinge pin fasteners 120a and 120b The positioning pins 133a and 133b on the latch 130 abut against the inner ends of the positioning pin slots 134a and 134b at opposite top ends of the latch 130 . Therefore, the hinge pin fasteners 120a and 120b cannot move inwardly along the longitudinal direction of the housing 10, and thus are fixed at the position of clasping the hinge pins 107a and 107b. In this case, the compression springs 135a and 135b complementarily push the pin chain pin fasteners 120a and 120b toward the pin slots 113a and 113b, thereby ensuring the abutment between the positioning pins 133a and 133b and the positioning pin slots 134a and 134b, This abutment is ensured even with a certain amount of wear at the abutment point.

Figure 8 shows the latch 130 moved to the right to latch the hinge pin clasp 120a holding the hinge pin so that it cannot move. At this point, the right hinge pin catch 120a cannot move from the position where it catches the hinge pin 107a in the pin slot 113a to the position where it is ready to receive the hinge pin. On the other side, the left hinge pin fastener 120b is free to move so that the corresponding hinge pin 107 can freely enter the pin slot. In other words, the right side of the door 102 is always hinged, while the left side of the door 102 can be opened and closed freely. Thus, the left side of the door 102 can be closed as shown in FIG. 8 or opened as shown in FIG. 9, while the right side only acts as a hinge and cannot be opened.

Figures 10 and 11 show the open and closed condition of the door when the latch 130 is moved to the left to latch the right hinge pin catch 120b. Contrary to Figures 8 and 9, the right side can be freely opened or closed, while the left side is used as a hinge.

From the above-mentioned structure of this embodiment, it can be seen that when the door is closed, the latch 130 is moved to the opposite side of the door opening side with the steering handle 109 and the door can be opened from this side. When the door is opened, the hinge pin catch is in a position ready to receive the hinge pin, so the latch cannot move toward the open end against the abutment surface of the hinge pin catch. Therefore, the latch at the side that acts as a hinge cannot be released, so that the hinge can never be released when the door is opened.

As mentioned above, the present invention provides a door opening device that can be opened from either side of the door, and has simple structure, low manufacturing cost and reliable performance.

Claims (9)

1, a kind of door opener that is contained in the door opening place of a main body is characterized in that this device comprises:

At at least one pair of joint pin of door or this main body opposite two ends, these joint pins are as the pivot of door;

The door of joint pin or the housing on this main body of not being equipped with fixed thereon has the cotter way that enters for joint pin on this housing;

The a pair of joint pin tightening device that is arranged on two cotter way positions, this can move between a buckled position and a dropout position the joint pin tightening device, this joint pin fastener blocks the dropout outlet of cotter way and joint pin is snapped onto in the cotter way when this buckled position, and this joint pin fastener allows joint pin to break away from cotter way when the dropout position;

One of these two joint pin fasteners are fixed on the dropout position and another joint pin fastener is fixed on the bolt work apparatus of buckled position; And

One steering handle from this bolt work apparatus of external control.

By the described door opener of claim 1, it is characterized in that 2, this bolt work apparatus is a rod door bolt part that can slide between these two joint pin tightening devices, its relative two tops are selectively against the joint pin tightening device.

3, by the described door opener of claim 2, it is characterized in that, comprise that further one is used for fixing the positioner of this door bolt spare.

4, by the described door opener of claim 3, it is characterized in that, this positioner comprises one from this door bolt spare locator protrusions of heaving and the positioning piece that is fixed on this housing, this keeper elastically deformable and the locating slot that has this locator protrusions of confession to embed on it.

5, by the described door opener of claim 1, it is characterized in that, this joint pin tightening device comprises: having on it one can the local joint pin fastener of admitting the pin receiving channel of this joint pin, and this fastener can rotate between this buckled position and this dropout position around pivot; And one push this joint pin fastener the spring of this dropout position to, and this bolt work apparatus prevents that optionally one of two joint pin fasteners from turning to this dropout position from this buckled position.

6, by the described door opener of claim 5, it is characterized in that, this bolt work apparatus is a rod door bolt part that can slide between these two joint pin fasteners, thus have on each joint pin fastener an abutment face can with this respective top of fastening part with a bolt or latch against this fastener can't be rotated.

7, by the described door opener of claim 1, it is characterized in that, this joint pin tightening device comprises a pair of spring that is arranged on the joint pin fastener at two cotter way positions and the joint pin fastener is pushed to this buckled position, all there is the inclined-plane on these both sides to the joint pin fastener, thereby can push cotter way or therefrom pull out and move between buckled position and dropout position along with joint pin, this bolt work apparatus withstands one of joint pin fastener at buckled position.

By the described door opener of claim 7, it is characterized in that 8, this bolt work apparatus is a rod door bolt part that can slide between two joint pin fasteners, withstand the joint pin fastener at buckled position on the top of this door bolt spare.

9, one has the refrigerator that a main body and a dozen open or close the door of the door opening that closes this main body, it is characterized in that, comprising:

At least one pair of is positioned at this main body opposite two ends joint pin relative to each other, and these joint pins are as the pivot of door;

One is fixed on the housing on the door, and the cotter way that enters for joint pin is arranged on it;

The a pair of joint pin tightening device that is positioned at the cotter way position, this can slide between a buckled position and a dropout position to the joint pin tightening device, this joint pin tightening device blocks the dropout outlet of cotter way and joint pin is fastened in cotter way when buckled position, and allows joint pin to break away from cotter way when the dropout position;

One of one two joint pin tightening device is fixed on the dropout position and another joint pin tightening device is fixed on the bolt work apparatus of buckled position; And

One steering handle from this bolt work apparatus of external control.

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