JP5126826B2 - Switchgear - Google Patents

Description

  The present invention relates to an opening / closing device that realizes a more appropriate operation of a latch.

  Many storage devices are equipped with a latch mechanism. This type of latch mechanism forms a latch receiver on the opening edge of the housing, while providing a latch on the outer edge of the door that closes the housing, and engages the latch with the latch receiver when the door is closed. Is moored to the housing. In addition, a handle is movably attached to the face plate portion of the door, and the handle and the latch are connected via a transmission shaft that rotates about the axis, so that the operating force applied to the handle is transmitted to the latch, and the latch and the latch receiver And the door can be opened.

Further, this type of storage device is usually provided with a locking / unlocking mechanism as well as a latch mechanism. The locking / unlocking mechanism prevents the handle from being operated at the latching position of the latch, or prevents the operating force from being transmitted to the latch even if the handle is operated, and holds the latch in the mooring position when the door is closed.
JP 2006-328825 A

  By the way, as the latch is engaged more deeply with the latch receiver, the backlash of the door when the door is closed can be reduced. However, since the latch releasing operation is hindered if the engagement is excessive, the necessary degree of engagement is usually set between the latch and the latch receiver within a range in which the door can be properly closed.

  However, with such a setting, there is some backlash between the latch and the latch receiver, so that if the handle is inadvertently or improperly operated during locking, the latch mechanism is likely to be damaged. This is not desirable from the viewpoint of crime prevention. In addition, when the storage device shakes or falls during transportation or an earthquake, the latch or the hinge portion may be damaged if the door is not closed firmly.

  The present invention has been made paying attention to such a problem, and an object of the present invention is to realize an opening / closing device that preferably achieves both good usability during normal use and a reliable closed state during locking. It is said.

  In order to achieve this object, the present invention takes the following measures.

That is, the opening / closing device of the present invention transmits an operation input to the handle to the latch through the transmission shaft, and moves the latch at the mooring position to the release position with respect to the latch receiver and allows the opening / closing member to be opened. in configuring to lock the opening and closing member regardless of the handle operation in a closed position by a locking and unlocking mechanism, in association with the locking and unlocking mechanism, from the latch by using the operation at the time of its facilities tablets from anchoring position Displacement inducing means for moving to a detention position deeply engaged with the latch receiver is provided.

  In this way, the latch is normally operated within an easy range of engagement and disengagement, and when locked, the latch can be securely detained by the latch receiver to eliminate rattling, so that it has good usability during normal use, It is possible to appropriately achieve both a reliable closed state at the time of locking.

  When the latching position of the latch is defined via the transmission shaft, the displacement inducing means rotates the transmission shaft beyond the rotational range at the time of locking relative to the normal rotation range of the transmission shaft. Thus, it is desirable to configure the latch to go beyond the mooring position to the detention position.

  In order to easily realize such rotational displacement, the displacement inducing means includes a transmission member that is integrally rotatable and slidably fitted to the transmission shaft, and the transmission member slides during locking to cause rotational displacement, It is preferable to apply the rotational displacement to the transmission shaft.

  In this case, under normal conditions in which the elastic force from the release position to the mooring position is acting on the transmission shaft and latch, the cam provided on the transmission member is offset by elastically contacting a restriction portion set in the periphery. It is advantageous that the offset position of the restricting portion is changed as the member slides during locking, and the transmission member is rotationally displaced together with the transmission shaft by the cam following operation at this time.

  In order to obtain a light operation of the latch and the transmission shaft when shifting from unlocking to locking or vice versa, the transmission member receives an operation input to the handle at the unlocking position, It is preferable to switch the connection between the handle and the transmission shaft so as not to receive an operation input to the handle at the locked position.

  In order to make the rotation range of the transmission shaft variable by the displacement triggering means, the rotation of the transmission shaft is regulated directly or indirectly by the regulating part to define the latching position of the latch, and in conjunction with the operation of the locking / unlocking mechanism, It is effective to change the restriction position.

  In this case, as a specific embodiment, cams are provided on the transmission shaft side, and different restriction positions are provided in at least two places of the restriction portion, and the cams are guided to different restriction positions during locking to detain the latch. A stationary type that causes the transmission shaft to move to a position, a cam on the transmission shaft, and a restriction portion that can be moved between at least two locations. In this case, a movable type is used in which the cam is guided to a different restricting position to cause a displacement in the transmission shaft to move the latch to the detention position.

  In view of the fact that such an action is not limited to the case of having a transmission shaft that is rotationally displaced, the present invention can be configured as follows.

That is, the operation input to the handle is transmitted to the latch via a transmission means such as a transmission shaft or a transmission rod, and the latch at the mooring position is moved to the release position with respect to the latch receiver, and the opening / closing member is allowed to open. , as long as it is adapted to lock the opening and closing member regardless of the handle operation in a closed position by a locking and unlocking mechanism, in association with the locking and unlocking mechanism, anchoring position latching by using the operation at the time of its facilities tablets In order to move to a detention position that engages with the latch receiver more deeply, a displacement inducing means may be provided.

  In this case as well, as a mode of regulation, a cam is provided on the transmission means side, and a different regulation position is provided at at least two places of the regulation part, and the cam is guided to a different regulation position at the time of locking to bring the latch into the detention position. A passive type that causes the displacement to be moved to the transmission means and a cam on the transmission means side, and the restriction part can be moved between at least two places, and the restriction part is moved at the time of locking. And the active type in which the cam is guided to a different restricting position to cause the transmission means to move so as to move the latch to the detention position.

  Since the present invention has the configuration described above, the present invention is applied to all opening / closing devices that open and close the opening / closing member by engaging / disengaging the latch with the latch receiver, so that the latch operates smoothly during use and the latch deeper during locking. A reliable closed state through the detained state can be achieved at the same time. For this reason, it is extremely easy to use when unlocked, and can be properly protected when the opening and closing member is operated accidentally or biased when locked, or when it is subjected to impact during transportation or itself, and the security function is also improved. The effect is played.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG.1 and FIG.2 has shown the storage apparatus which is the opening / closing apparatus of this embodiment. In this storage device, a pair of doors 2 are arranged in a housing 1 having a storage space so that the doors 2 can be opened through a hinge portion 3, and the door 2 is moored at a closed position of the housing 1 through a latch mechanism A. It is a thing.

The latch mechanism A is formed with a latch receiver 11 at the top and bottom of the opening edge of the housing 1, and is provided with a pair of latches 21 in the vicinity of the edge 2 a on the side opposite to the suspension side of the door 2 that closes the housing 2. Then, when the door 2 is closed, the latch is engaged with the corresponding latch receiver 11 to anchor the door 2 to the housing 1.
Further, the handle 4 is movably attached to the face plate portion 22 of the door 2 from the edge 2a on the side opposite to the suspension side of the door 2, and the transmission shaft 5 that rotates the handle 4 and the upper and lower latches 21 about the axis is provided. Thus, the operating force applied to the handle 4 is transmitted to the latch 21 so that the engagement between the latch 21 and the latch receiver 11 is released and the door 2 can be opened.
As shown in FIG. 3, the latch receiver 11 is made of, for example, resin and has an opening 11 a, and the tip 21 a of the latch 21 having a hook shape or a sickle shape enters from the opening 11 a of the latch receiver 11. The relationship is engaged with the opening edge 11b. The latch 21 is accompanied by a kick spring 21b, and the tip 21a is always pressed elastically toward the direction engaging with the opening edge 11b.
And in this embodiment, as shown in FIG.4 and FIG.5, the rotating shaft 40 of the handle 4 is separately provided in the position spaced apart from the transmission shaft 5, and rotation of the handle 4 is transmitted via the transmission part 6. FIG. The transmission shaft 5 can be transmitted.

  Specifically, as shown in FIGS. 4 and 7, the handle 4 includes an operation edge portion 41 for hooking a finger and a recess 42 adjacent to the operation edge portion 41 and serving as a finger insertion space. The entire edge portions 43, 44, 45 including the operation edge portion 41 around the recess 42 are integrally formed of a resin as a handle member B. And this handle member B is accommodated in the handle case C with the transmission member 7 mentioned later, the locking / unlocking mechanism D, etc., and this handle case C is attached to the opening 22a provided in the face plate 22 of the door 2. As shown in FIG. The rotary shaft 40 is set on the handle member B, on one end side near the edge 2a on the anti-hanging side of the door 2 and displaced to the front end side in the thickness direction of the door 2, and the operation edge 41 is on the handle member B. The recess 42 is set to a position close to the rotary shaft 40, and the recess 42 is turned around from the position adjacent to the operation edge 41 to the back of the operation edge 41, that is, as shown in FIG. It forms in the direction which escapes from the edge part 2b of diagonally toward the back. When the handle 3 rotates around the rotation axis 40, the entire handle 4 rotates as shown by the solid line in FIG. 5 to FIG. 6 and protrudes obliquely from the face plate 22 of the door 2, but the opening edge 22a of the face plate 22 Keeps the makeup made by the frame of the handle case C. As shown in FIG. 6, the rotation direction of the handle 4 and the rotation direction of the door 2 are opposite to each other.

  The rotary shaft 40 is substantially on the face plate 22 of the door 2, the transmission shaft 5 is arranged at a position as close as possible to the back surface of the face plate 22 of the door 2, and the latch 21 is directly attached up and down, and the handle 4 is a rotary shaft. It operates between 40 and the transmission shaft 5.

  As shown in FIGS. 4, 5, and 7, the transmission unit 6 engages the engagement unit 61 set on the handle 4 side and the engagement unit 62 set on the transmission shaft 5 side on the rotation circumference. It is made to let you. On the handle member B, the engaging portion 61 protrudes in a tongue-like shape in the direction from the rotation end b1 on the other end side toward the transmission shaft 5, while the transmission shaft 5 is made of resin. The transmission member 7 is externally fitted to the transmission shaft 5 so as to be rotatable integrally with the transmission shaft 5 and slidable in the axial direction, and the engaging portion 62 has a tongue-like shape in a direction from the outer periphery of the transmission member 7 toward the rotation shaft 40. It is made to protrude. The engaging portions 61 and 62 are overlapped in the front-rear direction so that the engaging portion 62 on the transmission shaft 5 side is positioned forward and the engaging portion 61 on the handle 4 side is positioned rearward. In this embodiment, the transmission shaft 5 has a prismatic shape, and is inserted through a square hole provided in the transmission member 7.

  As shown in FIG. 5, the distance from the shaft center of the rotating shaft 40 to the engaging portion 61 is set longer than the distance from the shaft center of the transmission shaft 5 to the engaging portion 62, and the operation edge portion. Since 41 is provided from the rotating shaft 40, there is a relation that the operation amount of the operation edge portion 40 <the rotation amount of the engaging portion 61 when operating from FIG. 5 to FIG. The rotation angle of the transmission shaft 5 is smaller than the rotation angle of the transmission shaft 5. As shown in an enlarged view in FIG. 8, the engagement of the transmission member 7 is performed in order to compensate for a decrease in the transmission rate due to the engagement position between the engagement portions 61 and 62 moving away from the center of the transmission shaft 5 as the handle 4 rotates. The portion 62 is provided with a transmission characteristic adjusting surface 62a having a curved or bent shape that gradually approaches the engaging portion 61 on the handle member B side from the proximal end to the distal end. Such a surface may be provided in the engaging portion 61 on the handle 4 side, or may be provided on both sides.

  By the way, as shown in FIG.7 and FIG.9, the said transmission member 7 is also a component of the locking / unlocking mechanism D for selectively locking the door 2 to a closed position. In addition to the transmission member 7, the locking / unlocking mechanism D is movable up and down in accordance with an operation portion 71 such as a cylinder lock provided on the face plate portion 22 at a position adjacent to the handle 4 and an operation input to the operation portion 71. And a movable portion 72 such as a dead bolt that engages with the engaged portion 7a provided on the transmission member 7 so that the distal end portion 72a of the movable portion 72 is engaged with the engaged portion 7a. The transmission member 7 can be made to follow up and down movements. That is, the locking / unlocking mechanism D includes the unlocking position in which the engaging portions 61 and 62 are engaged with each other to transmit the operation of the handle 4 to the transmission shaft 5 as shown in FIG. As shown in the drawing, even when the engaging portions 61 and 62 are dissociated and the handle 4 is operated, the lock 4 is selectively moved to the locking position where the operation is not transmitted to the transmission shaft 5 only by idling. Is realized.

  As described above, the opening / closing device of the present embodiment transmits the operation input to the handle 4 to the latch 21 via the transmission shaft 5 and moves the latch 21 in the mooring position to the release position relative to the latch receiver 11. The door 2 as an opening / closing member is allowed to open, and the door 2 is locked in the closed position by the locking / unlocking mechanism D without depending on the operation of the handle 4.

Then, further in this embodiment, the displacement caused means for moving the detention location mutually relates to deep latch receiver 11 from the anchoring position latch 21 by utilizing the operation in facilities lock 8 (see FIGS. 7 and 9) Is provided.

  The displacement inducing means 8 regulates the rotation of the transmission shaft 5 by a regulating portion 81 to define the anchoring position of the latch 21 and changes the regulating position between unlocking and locking. As shown in FIGS. 9 to 11, the transmission member 7 is integrally provided with a tongue-shaped cam 82 that extends toward the back of the handle case C, while the transmission member 7 is moved up and down, adjacent to the moving region of the cam 82, The regulating portion 81 is provided by a rib inside the handle case C. As described above, the latch 21 is preloaded toward the mooring position by the kick spring 21b, and the transmission shaft 5 is also elastically biased in the same direction, so that the cam 82 is always elastically contacted with the restricting portion 81 and offset. It is in the state. At the time of unlocking, the cam 82 is elastically contacted above the restricting portion 81 as shown in FIGS. 7 and 11, and the position of the tip of the latch 21 is in a mooring position where it is shallowly engaged with the latch receiver 11. At this time, the engaging portion 61 of the protrusion 4 faces the standby position of the engaging portion 62 on the transmission shaft 5 side under a slight clearance. When the handle 4 is operated, the engaging portion 61 of the handle 4 scoops up the engaging portion 62 on the transmission shaft 5 side, and the cam 82 moves away from the restricting portion 81 as shown in FIGS. The transmission member 7 is rotated together with the transmission shaft 5.

  On the other hand, when the movable part 72 moves downward as shown in FIGS. 7 to 9 during locking, the transmission member 7 slides and changes its position, and the cam 82 also changes to a position where it elastically contacts the lower part of the restricting part 81. . Here, in the present embodiment, the restriction portion 81 described above includes a first restriction position p1 with respect to the cam 82 at the time of unlocking shown in FIG. 7, and a second restriction position p2 with respect to the cam 82 at the time of lock shown in FIG. The second restricting position p2 is located at a position displaced in the direction of escaping from the cam 82 stationary at the first restricting position p1 in the direction of rotation, and a slope between the restricting positions p1 and p2 is provided. Connected. Then, the transmission member 7 moves as shown in FIG. 7 → FIG. 9 along with the operation of the movable portion 72, and the cam 82 moves from the first restriction position p1 to the second restriction position p2 as shown in FIG. 11 → FIG. When the copying operation is performed along the line, the transmission member 7 causes rotational displacement with the transmission shaft 5 because the offset position (offset angle) is changed, whereby the tip 21a of the latch 21 is shown in FIGS. In such a way, the latch receiver 11 is rotated to the detention position where it engages with the opening edge 11a of the latch receiver 11.

  The latch 21 has an arm portion and a bent portion so that the arm portion 21c extends rearward and the distal end 21a is bent in a hook shape, and the inner edge 21d of the bent portion is deeply engaged with the opening edge 11a of the latch receiver 11. The taper shape is such that the corners are slightly acute. Of the opening edge 11a of the latch receiver 11, the surface 11ax facing the inner edge 21d of the latch 21 in the mooring position has a tapered shape parallel to the surface 11ax. That is, even when an external force in the thickness direction as shown by the arrow f in FIGS. 11 and 13 acts on the door 2, the latch 21 is more deeply held in the latch receiver 11 in the state of FIG. 13 than in the state of FIG. 11. Thus, the backlash of the door 2 can be further reduced.

As described above, the storage device which is the opening / closing device of this embodiment transmits the operation input to the handle 4 to the latch 21 via the transmission shaft 5 and releases the latch 21 in the mooring position with respect to the latch receiver 11. The door 2 that is an opening / closing member is allowed to open by being moved to a position, and the door 2 is locked to the closed position by the locking / unlocking mechanism D regardless of the operation of the handle 4. Then, in association with the locking and unlocking mechanism D, which was provided with a displacement caused means 8 for moving the latch 21 by utilizing the operation at the time of its facilities tablets deep latch receiver 11 to dependency mutually detention position than the anchoring position is there.

  In this way, the latch 21 is normally operated within a range that can be easily engaged and disengaged, and when locked, the latch 21 can be securely detained by the latch receiver 11 to eliminate rattling. It is possible to appropriately balance the ease of use and the reliable closed state at the time of locking.

  In this case, in this embodiment, paying attention to the fact that the mooring position of the latch 21 is defined by the transmission shaft 5, the displacement-inducing means 8 is moved relative to the normal rotation range of the transmission shaft 5 when the transmission shaft 5 is locked. Is rotated beyond the rotation range, and thereby the latch 21 is moved beyond the mooring position toward the detention position, so that the operation of the latch 21 as described above can be easily obtained.

  Specifically, the displacement inducing means 8 includes a transmission member 7 that is fitted to the transmission shaft 5 so as to be integrally rotatable and slidable. The transmission member 7 slides during locking to cause rotational displacement, and the rotational displacement thereof. Therefore, it is easy to give a rotational displacement to the transmission shaft 5 by externally adding element parts to the existing transmission shaft 5, and the transmission member 7 is used to relate to the locking / unlocking mechanism D. Is also easy to perform. Particularly in the case of this embodiment, the transmission member 7 exists as a component of the locking / unlocking mechanism D from the beginning, so that the displacement inducing means 8 can be easily configured by effectively using this.

  Then, paying attention to the fact that the elastic force from the release position to the mooring position is applied to the transmission shaft 5 and the latch 21 of the present embodiment by the kick spring 21b, the cam 82 provided on the transmission member 7 is positioned around the periphery. The control member 81 is offset by being elastically contacted with the restricting portion 81 provided on the handle case C. The offset position of the restricting portion 81 is changed as the transmission member 7 slides during locking, and the transfer member 7 is moved by the cam 82 at this time. The transmission member 5 is rotationally displaced, and the cam 82 is provided on the transmission member 7 and the restricting portion 81 is provided on the peripheral portion of the cam 82 such as the handle case C. Therefore, the displacement inducing means can be configured more simply. can do.

  Further, the transmission member 7 described above receives the operation input to the handle 4 at the unlocked position and does not receive the operation input to the handle 4 at the locked position. It acts as a clutch for switching between connection and disconnection, and when the displacement inducing means 8 is operated, the transmission member 7 cuts the edge of the handle 4, so that the operation of the latch 21 and the transmission shaft 5 is light and mooring is performed. The displacement of the latch 21 can be accurately caused between the position and the detention position.

  The specific configuration of each unit is not limited to the above-described embodiment.

  For example, since the displacement inducing means 8 only needs to be able to vary the rotation range of the transmission shaft, the displacement inducing means 8 is not limited to the position where the restricting portion is provided, and can be configured to directly restrict the transmission shaft without using the transmission member.

  In addition to the stationary type described above, it is possible to implement a movable type that restricts itself and moves the restricting position.

  Further, the transmission shaft may be actively driven to guide the latch to the detention position without relying on an offset force such as a kick spring. For example, it is possible to implement a mode in which the movable part of the locking / unlocking mechanism D actively causes rotational displacement on the transmission shaft.

  Furthermore, even when the operating force of the handle is transmitted to the latch via various types of transmission means such as a transmission rod in addition to the shaft, the same effects as described above can be obtained by changing the operating range of the transmission means. be able to.

  In this case, either a stationary type or a movable type can be adopted as the restricting portion.

  The above is not limited to the latch that engages / disengages with respect to the latch receiver by the rotation operation, but the situation is exactly the same for the latch that engages / disengages with respect to the latch receiver by the advance / retreat operation.

  Other configurations can be variously modified without departing from the spirit of the present invention.

The perspective view which shows the storage apparatus which concerns on one Embodiment of this invention. The perspective view which shows the door back surface of the storage apparatus. The figure which shows the relationship between the latch and latch receiver in the embodiment. The disassembled perspective view which shows the structure of the handle periphery in the embodiment. The figure which shows the relationship between the handle and door in the embodiment. Operation | movement explanatory drawing of the handle and door in the embodiment. The perspective view which shows the relationship between the door and transmission member in the embodiment. The figure which shows the structure of the transmission part in the embodiment. Action explanatory drawing corresponding to FIG. FIG. 5 is an enlarged perspective view showing a portion X in FIG. 4 removed. Action | operation explanatory drawing of the same embodiment. Action | operation explanatory drawing of the same embodiment. Action | operation explanatory drawing of the same embodiment.

Explanation of symbols

2. Opening / closing member (door)
DESCRIPTION OF SYMBOLS 4 ... Handle 5 ... Transmission shaft 7 ... Transmission member 8 ... Displacement raising means 21 ... Latch 82 ... Cam 81 ... Restriction part D ... Locking / unlocking mechanism

Claims (11)

The operation input to the handle is transmitted to the latch through the transmission shaft, and the latch at the mooring position is moved to the release position with respect to the latch receiver to allow the opening / closing member to be opened. Without locking the open / close member to the closed position,
In association with the locking and unlocking mechanism, switchgear, characterized in that a displacement induced means for moving operate the latch using the detention location mutually relates to deeper latch receiver from moored position at the time of its facilities Tablets . The displacement inducing means is configured to rotationally displace the transmission shaft beyond the rotational range at the time of locking relative to the normal rotational range of the transmission shaft, thereby moving the latch beyond the mooring position to the detention position. The switchgear according to claim 1. The displacement inducing means includes a transmission member that is fitted to the transmission shaft so as to be integrally rotatable and slidable. The transmission member slides when locked to cause rotational displacement, and the rotational displacement is applied to the transmission shaft. The switchgear according to claim 2. An elastic force from the release position to the mooring position acts on the transmission shaft and the latch, and the cam provided on the transmission member is offset by elastically contacting a regulating portion set in the periphery, and the transmission member slides when locked. 4. The opening / closing apparatus according to claim 3, wherein the offset position by the restricting portion is changed and the transmission member is rotationally displaced together with the transmission shaft by a cam copying operation at this time. The transmission member receives an operation input to the handle at the unlocked position and switches between the handle and the transmission shaft so as not to receive an operation input to the handle at the locked position. The switchgear according to claim 3 or 4. The displacement inducing means regulates the latching position of the latch by regulating the rotation of the transmission shaft directly or indirectly by the regulating part, and changes the regulating position at the time of locking in conjunction with the operation of the locking and unlocking mechanism. The switchgear according to claim 2. A cam is provided on the transmission shaft side, and different restriction positions are provided in at least two places of the restriction portion, and the cam is guided to a different restriction position during locking to cause a displacement in the transmission shaft so as to move the latch to the detention position. The switchgear according to claim 6 configured as described above. A cam is provided on the transmission shaft, and the restricting portion can be moved between at least two places. When the lock is locked, the restricting portion is moved to guide the cam to a different restricting position, thereby moving the latch to the detention position. The switchgear according to claim 6, wherein displacement is caused in the transmission shaft. The operation input to the handle is transmitted to the latch through a transmission means such as a transmission shaft or transmission rod, and the latch at the mooring position is moved to the release position with respect to the latch receiver to allow the opening / closing member to be opened. In what locked the opening and closing member in the closed position without operating the handle by the locking mechanism,
In association with the locking and unlocking mechanism, switchgear, characterized in that a displacement induced means for moving operate the latch using the detention location mutually relates to deeper latch receiver from moored position at the time of its facilities Tablets . A cam is provided on the transmission means side, and different restriction positions are provided in at least two places of the restriction portion, and the cam is guided to a different restriction position at the time of locking, causing the displacement to move the latch to the detention position. The switchgear according to claim 9 configured as described above. A cam is provided on the transmission means side, and the restricting portion is movable between at least two locations. By moving the restricting portion during locking, the cam is guided to a different restricting position, and the latch is moved to the detention position. The switchgear according to claim 9, wherein a large displacement is caused in the transmission means.

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