JP7624715B2 - Handle device - Google Patents

Description

The present invention relates to technology for handle devices that are installed on structures such as inspection hatches, switchboards, distribution boards, and control panels.

Conventionally, a handle device provided on structures such as inspection hatches, switchboards, distribution boards, and control panels is known, as shown in Patent Document 1. The handle device of Patent Document 1 includes a handle base fixed to the front of a door of a structure such as an inspection hatch or switchboard, a handle attached to a handle shaft rotatably inserted into the handle base so as to be able to rise and fall relative to the handle base, and a stopper that is rotatably attached via the handle shaft to the back side of the handle base and can be engaged and disengaged with a receiving metal fitting on a fixed frame body such as a box body by operating the handle. In the handle device of Patent Document 1, when the door is opened or closed, the handle is raised from the handle base and rotated to release the engagement of the stopper with the receiving metal fitting. After the door is closed, the handle is collapsed onto the handle base for storage.

JP 2014-234651 A

However, in the handle device of Patent Document 1, the handle is stored on the handle base after the door is closed, but because the handle and handle base are fixed to the front of the door, there is a problem in that the aesthetic appearance of the door is marred. In addition, by providing the handle etc. on the front of the door, there is a problem in that the handle is easily visible when not being operated, and therefore the door can be easily opened and closed by operating the handle. In particular, in structures that store equipment etc. inside, such as inspection hatches or switchboards, it is not desirable for people other than the workers who inspect or handle the equipment etc. to easily open and close the door, so there is a demand for a handle device that places the handle in a position that is less visible when not being operated.

The present invention aims to solve the above problems by providing a handle device that does not impair the aesthetic appearance of the door and makes the handle less noticeable when not in operation.

In order to solve the above problem, the handle device of the present invention is a handle device that is installed in a structure having a frame installed on the edge of an opening and a door installed inside the frame to open and close the opening, and includes a handle that is arranged in the gap between the frame and the end of the door and is installed on the end of the door so as to be able to swing, a rotation shaft that is installed on the end of the door and rotates when the handle is operated, a stopper that is installed on the end of the door and swings when the rotation shaft rotates, and a receiving metal fitting that is installed on the frame and engages with the stopper when the handle is not operated, and the handle has a protrusion that is formed to protrude from the gap toward the front surface of the door when the handle is not operated, and when the protrusion is operated, the swing tip side of the handle swings around the rotation shaft and protrudes from the gap toward the front surface of the door, and when the swing tip side of the handle that protrudes toward the front surface of the door is operated to rotate the rotation shaft, the stopper is released from engagement with the receiving metal fitting.

In the above configuration, by pressing the protrusion protruding from the gap, the swing tip of the handle, which is placed in the gap when the handle is not being operated, protrudes from the gap. Furthermore, by operating the swing tip of the handle protruding from the gap, the engagement between the stop metal fitting and the receiving metal fitting is released, and the door is unlocked.

In the handle device of the present invention, the pivot shaft is made rotatable by operating the swing tip side of the handle that protrudes from the gap toward the front surface of the door and engaging the swing base end side of the handle with the pivot shaft.

In the above configuration, the pivot tip side of the handle protruding from the gap is operated, and the pivot base side of the handle engages with the pivot shaft, allowing the pivot shaft to be rotated by operating the handle.

The handle device of the present invention has a biasing member that biases the pivot shaft in a direction in which the stop metal engages with the receiving metal when the handle is not being operated.

In the above configuration, the rotating shaft rotates due to the biasing force of the biasing member, and the stop metal oscillates in the direction in which it engages with the receiving metal.

In the handle device of the present invention, the position where the stopper and the receiving metal engage is formed on the same horizontal plane as the axis of the rotating shaft.

In the above configuration, the stopper and the receiving bracket engage at a position where there is no misalignment in the height direction with the axis of the rotating shaft.

According to the handle device of the present invention, when the handle is not operated, only the protrusion of the handle protrudes from the gap between the frame and the door end toward the front of the door, and when the handle is operated, the protrusion is operated so that the swinging tip of the handle, which is located in the gap when the handle is not operated, protrudes from the gap and the door can be unlocked. This allows the door to be locked and unlocked reliably, while the handle can be hidden in a place that is less visible to others when the handle is not operated. In addition, because the handle is located in the gap rather than on the front of the door, the exterior design of the door can be improved.

1 is a perspective view of a handle device according to an embodiment of the present invention when the handle is not being operated; FIG. 2 is a perspective view of the handle device when the handle is not being operated. FIG. FIG. 4 is a partially enlarged side view of the swing base end side of the handle of the handle device when the handle is not being operated. FIG. 4 is a partial enlarged side view of the swing base end side of the handle of the handle device when the handle is operated. FIG. FIG. 2 is a perspective view of the handle device when the handle is operated. 4 is a perspective view of the handle device when the door is unlocked. FIG. 10 is a partially enlarged side view of the swing base end side of the handle in the handle device when the door is locked. FIG.

The handle device 10 according to the present invention will be described. As shown in Figs. 1 and 2, the handle device 10 is used, for example, in an inspection hatch 90 (an example of a "structure") provided in a wall, and is a device for opening and closing the door 92 of the inspection hatch 90, as well as locking and unlocking the door 92. The inspection hatch 90 for which the handle device 10 is used is mainly composed of a frame 91 provided on the edge of the opening that forms the inspection hatch 90, and a door 92 provided inside the frame 91 for opening and closing the opening.

As shown in Figs. 1 to 3, the handle device 10 is mainly composed of a lock case 11, which is the device body, a handle 12 for opening and closing the door 92, a pivot 13 that rotates by operating the handle 12, and a stopper 14 and a receiving metal fitting 15 for locking and unlocking the door 92. In the handle device 10, by operating the handle 12 arranged in the gap 93 between the frame 91 and the door end side 92A of the door 92, the stopper 14 swings via the pivot 13 held in the lock case 11, and the stopper 14 and the receiving metal fitting 15 are disengaged to unlock the door 92. In the handle device 10, by releasing the operation of the handle 12 to close the door 92, the stopper 14 and the receiving metal fitting 15 are engaged, and the door 92 is automatically locked.

As shown in Figures 1 and 3, the lock case 11 is formed in a box shape and is fixed to the inner surface 92a of the door end side 92A of the door 92 by a first fastening member 16. The lock case 11 holds the pivot shaft 13 rotatably inside.

The handle 12 is a long plate material and is rotatably attached to the pivot shaft 13 via the second fastening member 17 so as to face the outer surface 92b of the door end side 92A of the door 92. The handle 12 has a long hole 12a formed on one end side (swing tip side 12A). The long hole 12a is a hole through which the user's finger can be inserted when operating the handle 12.

As shown in Figs. 1 to 3, the handle 12 has a mounting hole 12b and a protrusion 12c formed at the other end side (swing base end side 12B). The mounting hole 12b is a hole for mounting the handle 12 to the rotating shaft 13. As shown in Fig. 5, the mounting hole 12b is formed as an elongated hole inclined at a predetermined angle θ with respect to the longitudinal axis S1 of the handle 12. As shown in Figs. 3 and 5, the mounting hole 12b has a pair of protrusions 12d that protrude from the edge of the elongated hole to the center. The rotating shaft 13 is inserted into the mounting hole 12b and the protrusions 12d engage with the rotating shaft 13, thereby locking the handle 12 to the rotating shaft 13.

As shown in Figures 1 to 3, the protrusion 12c is a generally semicircular protrusion formed by protruding from one end of the swing base end side 12B of the handle 12. The protrusion 12c is formed so as to protrude forward from the gap 93 between the frame 91 and the door end side 92A of the door 92 toward the front surface 92c of the door 92 when the handle 12 is not being operated.

The pivot shaft 13 is held by a lock case 11, both ends of which are provided on the inner surface 92a of the door end 92A of the door 92. The handle 12 is attached to one end of the pivot shaft 13 by a second fastening member 17 so that it can swing, and a fastener 14 is fixed to the other end by a third fastening member 18. As shown in Figures 3 and 5, the pivot shaft 13 has one end that holds the handle 12 formed into an elongated ellipse that can be inserted into the mounting hole 12b of the handle 12, and a flat surface 13a is formed on the periphery of the elongated ellipse with which the protrusion 12d of the handle 12 can engage. The pivot shaft 13 rotates when the flat surface 13a engages with the protrusion 12d of the handle 12 by operating the handle 12.

A biasing member 19 is attached to the rotating shaft 13 to bias the rotating shaft 13 in the direction in which the stop metal 14 engages with the receiving metal 15. The biasing member 19 is made of a coil spring and is wound around the circumference of the rotating shaft 13. The biasing member 19 biases the rotating shaft 13 in the direction in which the stop metal 14 engages with the receiving metal 15. Even if the rotating shaft 13 is rotated to a predetermined position by operating the handle 12, the biasing force of the biasing member 19 automatically rotates the rotating shaft 13 in the opposite direction to a position in which the stop metal 14 engages with the receiving metal 15. As shown in FIG. 4, the rotating shaft 13 is provided with a protrusion 21, and the protrusion 21 of the rotating shaft 13, which rotates due to the biasing force of the biasing member 19, abuts against the inner wall of the lock case 11, thereby controlling the rotation angle of the rotating shaft 13.

The stop fitting 14 is a plate material whose swing base end 14B is fixed to the end of the pivot shaft 13 provided on the door end side 92A of the door 92, and whose swing tip end 14A is bent into a hook shape, and swings when the pivot shaft 13 rotates. The hook-shaped portion (swing tip 14a) of the swing tip end 14A of the stop fitting 14 engages with the receiving fitting 15. The pivot shaft 13 is biased by the biasing member 19 in the direction in which the stop fitting 14 engages with the receiving fitting 15, so the stop fitting 14 is held in a position where it can engage with the receiving fitting 15 when the handle 12 is not being operated.

As shown in FIG. 1, the receiving metal fitting 15 is a plate material bent into an L-shape in plan view and fixed to the inner surface 91a of the frame 91 by the fourth fastening member 20, and engages with the fastener fitting 14 when the handle 12 is not being operated. The receiving metal fitting 15 has a protruding portion 15a that protrudes from the inner surface 91a of the frame 91, and engages with the fastener fitting 14 at the protruding portion 15a.

4, in the handle device 10, the pivoting tip 14A of the fastener 14 bent into a hook shape engages with the protruding portion 15a of the receiving bracket 15 so as to wrap around the protruding portion 15a from below, so that the position P at which the pivoting tip 14a of the fastener 14 and the protruding portion 15a of the receiving bracket 15 engage is formed on the same plane as the horizontal plane M including the axis S2 of the pivot shaft 13. That is, in the handle device 10, the engagement position P between the fastener 14 and the receiving bracket 15 is on the same horizontal line as the axis S2 of the pivot shaft 13 in a side view, and the fastener 14 and the receiving bracket 15 engage at a position where there is no vertical misalignment with the axis S2 of the pivot shaft 13. By engaging the stop metal fitting 14 and the receiving metal fitting 15 in this position, it is possible to prevent the stop metal fitting 14 from coming off the receiving metal fitting 15 and swinging when back pressure (pressure applied in the direction that tries to open the door 92 due to wind entering through the gap 93 of the inspection hatch 90) is applied to the door 92.

Next, the operation of the handle device 10 will be described. As shown in FIG. 2, when the door 92 is closed (when the handle 12 is not being operated), the protrusion 12c of the handle 12 protrudes forward from the gap 93 toward the front surface 92c of the door 92. Therefore, when the door 92 is closed, the user can see the protrusion 12c of the handle 12.

As shown in Figures 1 and 7, when the user pushes up the lower part of the protrusion 12c of the handle 12 toward the gap 93, the swing tip side 12A of the handle 12 swings around the rotation axis 13. This causes the swing tip side 12A of the handle 12 to protrude from the gap 93 toward the front surface 92c of the door 92, allowing the user to hold the swing tip side 12A of the handle 12 and operate it.

As shown in FIG. 6, when the user lifts the swing tip side 12A of the handle 12 to a predetermined angle θ with respect to the vertical direction, the protrusion 12d of the handle 12 engages with the flat surface 13a at the peripheral end of the rotating shaft 13, and the rotating shaft 13 can be rotated by operating the handle 12. There is a predetermined amount of play between the mounting hole 12b of the handle 12 and the peripheral end of the rotating shaft 13 (the joint between the handle 12 and the rotating shaft 13), and by operating the swing tip side 12A of the handle 12 to a position where it is at a predetermined angle θ with respect to the vertical direction, the protrusion 12d of the handle 12 engages with the flat surface 13a at the peripheral end of the rotating shaft 13, and the rotating shaft 13 can be rotated by operating the handle 12.

As shown in FIG. 8, when the pivot shaft 13 is rotated by operating the handle 12, the stop metal fitting 14 swings due to the rotation of the pivot shaft 13. This disengages the pivot tip 14a of the stop metal fitting 14 from the protruding portion 15a of the receiving metal fitting 15, and the door 92 is unlocked.

On the other hand, when the user releases the swing tip side 12A of the handle 12 to release the operation of the handle 12, the rotating shaft 13 rotates in the opposite direction to when the handle 12 is operated due to the biasing force of the biasing member 19. When the rotating shaft 13 rotates due to the biasing force of the biasing member 19, the stop metal fitting 14 swings in the opposite direction to when the handle 12 is operated. At this time, if the door 92 is closed, the swing tip 14a of the stop metal fitting 14 engages with the protruding portion 15a of the receiving metal fitting 15 to lock the door 92. Also, if the door 92 is open, the swing tip 14a of the stop metal fitting 14 is raised without engaging with the protruding portion 15a of the receiving metal fitting 15, but as shown in FIG. 9, when the user moves the door 92 in the closing direction, the inclined portion 14b of the swing tip side 14A of the stop metal fitting 14 abuts against the lower portion of the protruding portion 15a of the receiving metal fitting 15 and is pushed downward. Furthermore, when the user moves the door 92 in the closing direction, the inclined portion 14b of the stop metal 14 moves away from the lower portion of the protruding portion 15a of the receiving metal 15. Then, the pivoting tip side 14A of the stop metal 14 is flipped up by the biasing force of the biasing member 19, so that the pivoting tip 14a of the stop metal 14 engages with the protruding portion 15a of the receiving metal 15, and the door 92 is locked. In this way, with the handle device 10, when the user closes the door 92, the pivoting tip 14a of the stop metal 14 engages with the protruding portion 15a of the receiving metal 15, and the door 92 is automatically locked.

As described above, in the handle device 10, when the handle 12 is not operated, only the protrusion 12c of the handle 12 protrudes from the gap 93 between the frame 91 and the door end side 92A of the door 92 toward the front surface 92c of the door 92. When the handle 12 is operated, the protrusion 12c is operated, and the swing tip side 12A of the handle 12, which is located in the gap 93 when the handle 12 is not operated, protrudes from the gap 93, making it possible to unlock the door 92. This allows the door 92 to be locked and unlocked reliably, while the handle 12 can be hidden in a place that is less visible to the naked eye when the handle 12 is not operated. In addition, because the handle 12 is located in the gap 93, rather than on the front surface 92c of the door 92, the design appearance of the door 92 can be improved.

In this embodiment, the protrusion 12c of the handle 12 is formed on the swing base end side 12B of the handle 12, but this is not limited thereto, and the protrusion 12c may be formed on the swing tip side 12A of the handle 12. In this case, the protrusion 12c is pulled outward from the gap 93 (opposite the gap 93), so that the swing tip side 12A of the handle 12 swings around the pivot shaft 13 and protrudes from the gap 93 toward the front surface 92c of the door 92.

In this embodiment, the structure in which the handle device 10 is installed is an inspection hatch 90, but this is not limited to this, and the handle device may be installed in a structure such as a switchboard, distribution board, or control panel.

In this embodiment, the handle device 10 is described for a case where the door 92 is right-handed, but by rearranging the positions of the handle 12 and the stopper 14, the handle device 10 can also be used when the door 92 is left-handed.

10 Handle device 12 Handle 12A Swing tip side of handle 12c Projection 13 Rotation shaft 14 Stop metal fitting 15 Receiving metal fitting 90 Inspection hatch (structure)
91 Frame 92 Door 92A Door end 92c Door front 93 Gap

Claims (4)

A handle device to be provided in a structure having a frame provided on an edge of an opening and a door provided inside the frame for opening and closing the opening,
A handle is disposed in the gap between the frame and the door end side of the door and is provided on the door end side so as to be able to swing freely;
A rotation shaft provided on the door end side and rotated by operating the handle;
A stopper provided on the door end side and swinging due to the rotation of the pivot shaft;
a receiving metal fitting provided on the frame and engaging with the fastening metal fitting when the handle is not being operated;
Equipped with
The handle includes a protrusion formed to protrude from the gap toward the front surface of the door when the handle is not operated,
When the protrusion is operated, the swing tip side of the handle swings around the rotation axis and protrudes from the gap toward the front surface of the door,
The handle device is characterized in that the stop metal is released from engagement with the receiving metal by operating the swing tip side of the handle that protrudes from the front surface of the door to rotate the rotating shaft. 2. The handle device according to claim 1, wherein the pivot shaft is made rotatable by operating a pivot tip side of the handle that protrudes from the gap toward the front surface of the door and engaging a pivot base side of the handle with the pivot shaft. 3. The handle device according to claim 1, further comprising a biasing member for biasing the rotating shaft in a direction in which the fastening metal fitting engages with the receiving metal fitting. 4. The handle device according to claim 1, wherein the position at which the fastening metal fitting and the receiving metal fitting engage is formed on the same horizontal plane as a horizontal plane including an axis of the rotating shaft.

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