JPH0540568U - Sliding door opening / closing auxiliary device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Make the opening and closing of the sliding door light and safe. [Structure] In a structure in which a door 4 is suspended from suspension wheels 6 and 6 which are reciprocally engaged with a guide rail 2 laid on an upper part of a doorway of a warehouse, and a resilient rod 11 is attached to the door. Is supported slidably in parallel to the traveling direction of the elastic rod, and a spring member 15 for elastically elastically ejecting the elastic rod in the door closing direction is provided. A stopper 16 is provided at a position which should come into contact with the tip of the door closing door of the elastic rod, and the stopper comes into contact with the tip of the elastic rod before the door closing position when the door is closed. Then, there is a positional relationship in which the elastic member is pushed back in the door opening direction until the door is closed and the spring member is compressed, and the elastic member holds the elastic member in a spring compression state when the elastic member is spring-compressed. A device for assisting opening and closing of a sliding door, which is provided with a free latch means.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an auxiliary device for safely and lightly opening and closing a heavy slide door.

[0002]

[Prior Art]

 Conventionally, for example, as a manual open / close structure for a heavy-duty slide door of a large-scale prefabricated commercial refrigerator, a guide rail was laid above the doorway of the cabinet and the door was hung on a suspension wheel that was engaged with the guide rail. It is known that the support rail is provided with a recess for pulling the suspension wheel to the wall of the guide rail at the suspension wheel stop position when the door is closed. .

[0003]

[Problems to be solved by the device]

 However, in the conventional sliding door manual opening / closing structure, a considerable force is required at the time of opening / closing when manually opening / closing a heavy-weight sliding door, especially from the closed state in which the suspension wheel is engaged with the recess of the guide rail. Requires even greater force when opening and opening the door, and during the closing work, the door once started to run cannot be stopped suddenly in the closed position, so the door collides violently with the door stop and hits the door stop. There were drawbacks such as deformation and damage.

An object of the present invention is to enable even a heavy-weight sliding door to be lightly activated when opened and to mitigate the collision when closed.

[0005]

[Means for Solving the Problems]

 As a means for solving the above problems, the first invention of the present application is a structure in which a door is suspended by a suspension wheel engaged with a guide rail laid in the upper part of a doorway of a warehouse so that the door can reciprocate freely. A spring member is provided for slidably supporting the firing rod parallel to the traveling direction of the door, and at the same time, a spring member is provided for resiliently pushing the firing rod in the door closing direction. A stopper is provided so as to abut on the tip of the door closing of the firing rod on the moving orbit accompanying the traveling, and the stopper causes the bullet to be released before the door closing position when the door is traveling. It is in contact with the tip of the rod and then pushes back the elastic rod in the door opening direction until the door is closed, so that the spring member is compressed. It is equipped with a latch that can be unlocked to keep the It proposed a closing aid for de door,

In the second invention of the present application, in a configuration in which a door is suspended from a suspension wheel engaged with a guide rail laid in the upper part of the entrance of the warehouse so as to be capable of reciprocating traveling, the resilient rod is provided in the warehouse. A spring member is provided that slidably supports the door parallel to the traveling direction, and at the same time, a spring member that elastically springs the elastic rod in the door opening direction is provided. A stopper is provided at a position where it should come into contact with the tip of the door opening of the rod, and the stopper comes into contact with the tip of the resilient rod before the door is closed when the door is closed, and then the door is closed. The spring rod is pushed back in the direction of closing the door to compress the spring member, and an unlockable latch means for holding the spring rod in the spring compression state when the spring is compressed. We have proposed a slide door opening / closing auxiliary device

Further, in the third invention of the present application, in a configuration in which the door is suspended by a suspension wheel engaged with a guide rail laid on the upper part of the entrance of the warehouse so as to be capable of reciprocating travel, a resilient rod is attached to the door. A spring member is provided for slidably supporting the door parallel to the traveling direction of the door, and at the same time, a spring member for elastically pushing the resilient rod in the door closing direction is provided. A stopper is provided so as to abut on the tip of the door closing of the elastic rod on the moving track due to the movement of the elastic rod. It is in a position to abut the tip and then push back the resilient rod in the door opening direction to compress the spring member until the door is closed. When the door is closed, it holds the door in an unlockable state. A sliding door opening / closing assisting device equipped with To. An embodiment of the present invention will be described below with reference to the drawings.

[0008]

【Example】1st device  In Figures 1, 2 and 3, a guide rail (2) with a rhombic cross section is laid horizontally by a bracket (3) on the outside of the entrance (1) of a large commercial refrigerator (W), and a one-way sliding door is installed. In (4), hanging wheels (6) and (6) are rotatably supported by brackets (5) and (5) projecting from the left and right ends of the upper end surface of the wheel. , (6) are movably engaged with the guide rail (2) to suspend the door (4) from the position where the door (1) is closed to the position where the door (4) is opened. Reference numeral (7) is a door pulling recess formed at the stop position of the suspension wheels (6) and (6) when the door (4) is closed in the guide rail (2), and is a storage of the guide rail (2). The outer upper sloping surface is partially recessed.

A support bar (8) is supported between the suspension wheel brackets (5) and (5) on the upper end surface of the slide door (4) as described above, and a square hole is formed in the intermediate portion of the support bar (8). The bracket (9) is fixed on the left side (door closing door), and the bracket (10) having a round hole is fixed on the right side, and both brackets have the square bar (12) and the round bar on the same axis. The elastic rod (11) having (13) is fitted into the bracket (9) by the square rod portion (12) and the bracket (10) by the round rod portion (13), and the door (4) is obtained. It is slidably supported in a state parallel to the traveling direction of the.

The resilient rod (11) is a door by a coil spring (15) wound between a flange (14) fixed to the left end of the round rod portion (13) and the bracket (10). It is always repelled in the closing direction, and its square bar portion (12) is projected from the bracket (9) for a long time in the door closing direction. On the other hand, on the outer surface of the refrigerator (W), the repulsion rod ( 11) A plate-like stopper (16) located on the moving track accompanying the door traveling of (11) is provided in a protruding manner, and the stopper (16) is an appropriate position before the door closing position when the door is traveling. It is in contact with the tip of the square rod portion (12), and then pushes back the elastic rod (11) in the door opening direction until the door is closed, and compresses the coil spring (15).

The elastic rod latch means for holding the elastic rod (11) in the spring compression state is provided, and this is the upper surface of the end of the door closing door end of the elastic rod square bar (12). A latch groove (17) is provided in the bracket, and a bracket (18) is fixed to the support bar (8) at a position corresponding to the base of the square bar (12). The latch (19) is swingably supported by a pin (20) at the intermediate portion of the latch with one end of the latch (19) positioned on the square rod (12) and orthogonal to the resilient rod (11). Then, the interlocking rod (21) connected to the other end of the latch (19) is extended downward, and the extended end is projected upward from the operation case (22) fixed to the outer surface of the door (4). It is connected to an actuating rod (23). The actuating rod (23) is constantly repulsed upward in the case (22) by the coil spring (24), so that one end of the latch (19) is always repelled by the coil rod (21). One lever (26) of the bell crank is abutted on the flange (25) fixed to the middle portion of the operating rod (23) in the case while being pressed against the rod portion (12) and the other lever (27) is operably positioned outside the case. (28) is a bearing shaft of the bell crank.

The operation of the above example will be described below. Now, as shown in FIGS. 1 and 2, when the door (4) is pushed in the closing direction from the state where the door (4) is open, the tip of the elastic rod (11) is appropriately stopped before the closing position, and the stopper (16). When the door is closed, the stopper (16) pushes back the resilient rod (11) in the door opening direction while resisting the resilient force of the coil spring (15), and then the coil spring (15). As the coil spring (15) elastically repels, the closing travel of the door (4) is slowed down, the door (4) is gradually moved to the closed position, and the guide rail (2) is recessed. When the suspension wheels (6) and (6) are locked to (7) and (7), traveling is stopped. At the same time, in this example, when the door (4) approaches the closed position, the latch (19), which is in pressure contact with the elastic rod angular rod portion (12), is locked in the latch groove (17). Then, the elastic rod (11) is locked so as to prevent the stopper (16) from elastically moving to the arm due to the restoring force of the spring (15). The door (4) continues to be stopped in the closed position by locking the elastic rod (11).

Next, when opening the door (4) in the closed position, first, when the lever (27) of the operation case (22) is rotated counterclockwise in FIGS. 2 and 4, the lever (26) is opened. The actuating rod (23) and the interlocking rod (21) are pulled downwards via the flange (25), whereby the latch (19) is disengaged from the latch groove (17) and the elastic rod latch means is unlocked. Then, the resilient rod (11) resiliently pushes the door (4) in the opening direction by the restoring force of the coil spring (15) to the stopper (16). In this state, when the door (4) is lightly pushed in the opening direction, the suspension wheel (6), (6) of the door (4) is recessed (7) by the elastic cooperation of the coil spring (15). Escape easily from (7), and then lightly run in the opening direction.

[0014]Second device  As shown in FIG. 5, an embodiment of a slide door opening / closing assisting device according to the second aspect of the present invention is that the same elastic rod (11a) and its accessories as those in FIGS. 1 to 4 are installed outside the refrigerator (Wa). It is attached to the side surface, the stopper (16a) is fixed to the support bar (8a) of the door (4a), and the latch (19a) and its attached device are attached to the outer surface of the refrigerator (Wa). 4 to 4 have substantially the same configuration.

The operation of this embodiment is substantially the same as that of the embodiment of the first invention.

[0016]Third device  In the embodiment of the sliding door opening / closing assisting device according to the third invention, as shown in FIG. 6, the elastic rod (11b) is a full-length round rod, and this and the plate-like stopper (16b) are shown in FIGS. 3 is attached in the same positional relationship as that of No. 3, and the tip of the hook is attached to the bracket (18b) fixed to the support bar (8b) as a door latch means, instead of the elastic rod latch means of FIGS. The latch (19b) having (19'b) is pivotally supported in the middle in a state where the hook (19'b) is directed toward the door closing direction, and at the same time, the interlocking rod ( 21b) is connected to the outside of the refrigerator (Wb), and a bar-shaped latch having a pentagonal cross-section at a position to be engaged with the hook (19'b) of the latch (19b) when the door (4b) is closed. Hold the bracket (17b) with both flow slopes facing up. State, projecting, other structures are substantially the same as FIG. 1, 2, 3, 4.

In this example, when the door is closed and closed, the hook (19′b) of the latch (19b) slides on the inclined surface of the latch receiving fitting (17b) and swings to automatically receive the receiving fitting (17b). , The door (4b) is locked so that it cannot be opened, and the elastic rod (11b) is held in a compressed state by the spring (15b). When the door is opened, the interlocking rod (21b) is locked. The door (4b) may be pushed in the opening direction after the latch (19b) is swung by pulling it downward to release the engagement with the receiving fitting (17b).

[0018]

[Effect of the device]

 According to the sliding door opening / closing assisting device of the first invention of the present application, when the opening of the door in the closed state is started, the elastic restoring force of the compressed spring member allows the door to be opened lightly and the door closing traveling. At the same time, it is possible to mitigate the impact of the door on the door-stopping part due to the elastic force of the spring member. Can be maintained.

According to the sliding door opening / closing assisting device of the second invention of the present application, substantially the same effects as those of the first invention can be obtained, which contributes to the enrichment of technology.

According to the sliding door opening / closing assisting device of the third invention of the present application, it is possible to open the door in the closed state, to open the door lightly at the time of starting, and to mitigate the collision of the door when the vehicle is running with the door closed. Moreover, when the door is closed, the latch means locks the door in the closed state, and at the same time, the spring of the elastic rod can be kept in the compressed state.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the first invention.

FIG. 2 is an enlarged perspective view of a main part with a part omitted.

3 is an enlarged sectional view taken along the line III-III in FIG.

FIG. 4 is a partially cutaway enlarged front view of an operation case.

FIG. 5 is an enlarged perspective view of a partially omitted embodiment of the second invention.

FIG. 6 is a partially omitted enlarged perspective view of the embodiment of the third invention.

[Explanation of symbols]

 W, Wa, Wb Refrigerator 1, 1a, 1b Doorway 2, 2a, 2b Guide rail 4, 4a, 4b Sliding door 6, 6a, 6b Hanging wheel 11, 11a, 11b Releasing rod 15, 15a, 15b Coil spring 16, 16a , 16b Stopper 19, 19a, 19b Latch

Claims (3)

[Scope of utility model registration request] 1. A structure in which a door is suspended from a suspension wheel that is reciprocally engaged with a guide rail laid at the top of a doorway of a warehouse, and a resilient rod is attached to the door in a traveling direction of the door. A spring member for slidably supporting the elastic rods in parallel is provided, and a spring member for constantly springing the elastic rods in the door closing direction is provided, and the elastic rods on the movement track accompanying the door traveling of the elastic rods are provided in the warehouse. A stopper is provided at a position where it should come into contact with the tip of the door closing door, and the stopper comes into contact with the tip of the elastic rod at an appropriate position before the door closing position when the door is closed.
Then, the spring rod is pushed back in the door opening direction until the door is closed, and the spring member is compressed. When the spring of the elastic rod is compressed, the elastic rod is held in the spring compressed state. A device for assisting the opening and closing of the sliding door, which is provided with the latching means. 2. A structure in which a door is suspended from a suspension wheel that is reciprocally engaged with a guide rail laid on an upper part of a doorway of the store, and a resilient rod is provided in the store in a traveling direction of the door. A spring member that slidably supports the elastic rods in parallel and that elastically springs the elastic rod in the door opening direction is provided, and the door opening of the elastic rod on the extension line of the elastic rod is provided on the door. Providing a stopper at the position that should contact the tip,
The stopper comes into contact with the tip of the elastic rod before the closing of the door when the door is closed, and then pushes the elastic rod back in the door closing direction until the door is closed, thereby compressing the spring member. In the above, there is provided an opening / closing assisting device for the slide door, which is provided with an unlockable latch means for holding the elastic rod in the spring compressed state when the elastic rod is compressed. 3. A structure in which a door is suspended from a suspension wheel that is reciprocally engaged with a guide rail laid on the upper part of the doorway of the warehouse, and a resilient rod is attached to the door in the traveling direction of the door. A spring member for slidably supporting the elastic rods in parallel is provided, and a spring member for constantly springing the elastic rods in the door closing direction is provided, and the elastic rods on the movement track accompanying the door traveling of the elastic rods are provided in the warehouse. A stopper is provided at a position where it should come into contact with the tip of the door closing door, and the stopper comes into contact with the tip of the elastic rod at an appropriate position before the door closing position when the door is closed.
Then, there is a positional relationship in which the spring rod is pushed back in the door opening direction to compress the spring member until the door is closed, and unlockable latch means for holding the door unopenable when the door is closed is provided. , Slide door opening / closing auxiliary device.