JP7398352B2 - switchgear - Google Patents

Description

The present disclosure relates to a switchgear.

BACKGROUND ART Fittings have heretofore been used that include a cam latch handle that allows the fitting to be locked and unlocked by rotating the handle via a pedestal portion fixed to the fitting, such as a window or door. A cam latch handle generally has a pedestal portion fixed to a fitting with screws or the like (see, for example, Patent Document 1). The cam latch handle described in Patent Document 1 has two screw covers that cover the screw portions separately from the base body in order to prevent the screws from being exposed and improve the design.

The cam latch handle has a large operating handle portion, and a relatively large load is placed on the base when opening and closing, so the base body portion is required to have high strength. Although the screw cover portion is not required to have much strength because it is difficult to receive a direct load, it is preferable to have water resistance so as to prevent deformation due to moisture such as dew. Therefore, different materials are sometimes used for the pedestal body and the screw cover, which require strength.

Japanese Patent Application Publication No. 2000-73638

In the cam latch handle described in Patent Document 1, the joint between the base body and the screw cover is visible from the front. Furthermore, if different materials are used for the pedestal body and the screw cover, if each material changes color due to aging, the difference in color will be noticeable and the design will likely be impaired.

The present disclosure provides an opening/closing device that includes a pedestal that is fixed to a fitting, an operating section that is rotatably attached to the pedestal and can lock and unlock the fitting by a rotational operation, and a cover member that covers the entire pedestal. The cover member includes a first cover member and a second cover member, and the first cover member and the second cover member accommodate the entire pedestal inside. Provide equipment.

It is a figure showing the opening and closing device attached to fittings concerning a 1st embodiment. It is a diagram showing the fittings when unlocked. FIG. 2 is a front view of the opening/closing device according to the first embodiment. FIG. 3 is an external perspective view of the first cover member according to the first embodiment. FIG. 3 is a perspective view of the inner surface of the first cover member according to the first embodiment. It is a perspective view of the 2nd cover member concerning a 1st embodiment. FIG. 3 is a back view of the assembled back plate member and second cover member according to the first embodiment. It is a figure which shows the pedestal before attachment of the 1st cover member based on 1st Embodiment. It is a figure which shows the sliding attachment of the 1st cover member based on 1st Embodiment. FIG. 3 is a side view of the pedestal after the first cover member is assembled according to the first embodiment. FIG. 3 is a back view of the stopper according to the first embodiment. FIG. 7 is an external perspective view of a first cover member according to a second embodiment. FIG. 7 is a perspective view of the inner surface of the first cover member according to the second embodiment. It is a figure which shows the pedestal before attachment of the 1st cover member based on 2nd Embodiment. It is a figure which shows the sliding attachment of the 1st cover member based on 2nd Embodiment. FIG. 7 is a side view of the pedestal after the first cover member is assembled according to the second embodiment. It is a back side view of the stopper based on 3rd Embodiment.

<First embodiment>
As shown in FIGS. 1A and 1B, the opening/closing device 2 of this embodiment is attached to the fitting 1 and the fitting frame 3, and is configured to be able to lock and unlock the fitting 1. The fitting 1 is, for example, a window or a door, and the fitting frame 3 is constituted by, for example, a window frame or a door frame. The pedestal cover 21, the pedestal 22, and the operating section 23 of the opening/closing device 2 are fixed to the fitting 1, and the latch receiver 24 is fixed to the fitting frame 3. The opening/closing device 2 includes, in addition to the pedestal cover 21, pedestal 22, operating section 23, and latch receiver 24 described above, a connecting section 6 that connects the pedestal 22 and the operating section 23.

The operating portion 23 includes an operating handle 23a, a latch 23b that engages with the latch receiver 24 to lock the fitting 1, and an intermediate portion located between the operating handle 23a and the latch 23b and connected to a rotating shaft portion 61, which will be described later. It has a portion 23c. The operating unit 23 can be rotated by 90° around the rotating shaft portion 61 from the state shown in FIG. 1 . The operation handle 23a is used not only for locking/unlocking, but also as a knob for opening and closing the fitting 1.

The operating section 23 in FIG. 2 is in a state rotated by 90 degrees from the state shown in FIG. Since a load is repeatedly applied to the operation part 23 in conjunction with locking/unlocking operations and opening/closing operations of the fittings 1, it is preferable that the operation part 23 has high strength. The operating portion 23 is preferably made of nylon containing glass fiber, for example.

In this embodiment, the fitting 1 is a shoji that opens outward, and does not enter inside the fitting frame 3. The fittings 1 may be configured to open outward or may be configured to open inward. By setting the operating part 23 to the rotation angle shown in FIG. 1 with the shoji closed, the latch 23b is inserted into the latch receiver 24 and engaged to lock the fitting 1 so that it cannot be opened to the outside. The latch receiver 24 is embedded and attached to the fittings frame 3, and has a recess into which the latch 23b is inserted.

The latch 23b or the latch receiver 24 each has an inclined portion on at least one of the opposing surfaces. As the operating portion 23 rotates, the latch 23b rides on the latch receiver 24 via the inclined portion, and the latch 23b and the latch receiver 24 engage, thereby locking the fitting 1. Conversely, by rotating the operating portion 23 from the locked state, the latch 23b and the latch receiver 24 are disengaged, and the fitting 1 is unlocked.

The pedestal cover 21 includes a first cover member 4 and a second cover member 7. As shown in FIGS. 3A and 3B, the first cover member 4 has a shape constituting four sides of a substantially rectangular parallelepiped, and can accommodate the entire pedestal 22 therein. The second cover member 7 shown in FIGS. 4 to 6 is formed into a substantially rectangular plate shape, and has an end abutted against the first cover member 4 and forms one surface of the substantially rectangular parallelepiped. It is preferable that the pedestal cover 21 is made of the same material as the operating section 23. This is because the color tone is unified and the design is improved.

That is, the pedestal cover 21 is configured such that the first cover member 4 and the second cover member 7 are combined to form five surfaces of the substantially rectangular parallelepiped, and one surface covers the entire pedestal 22 fixed to the fixture 1. As a result, the pedestal 22 is not visible to the user, and furthermore, as shown in FIG. 2, when the fitting 1 is viewed from the front, the pedestal cover 21 has no seam and only a single component is visible, which improves the design. will improve. A front view of the fitting 1 refers to viewing the fitting 1 from the direction in which the operating section 23 is located.

As shown in FIGS. 3A and 3B, the first cover member 4 includes a recess 41, a joint surface 42, a protrusion 43, a first engagement part 44, a guide protrusion 45, and a second engagement part 46. and has. The first cover member 4 is detachably attached to the base 22. For example, a plurality of different designs and surface finishes may be created, and the user may select and use them according to his or her preference.

As shown in FIG. 6, the pedestal 22 is composed of a metal back plate member 5 that is fixed to the fitting 1 with screws. The back plate member 5 is fixed to the fittings 1 by screwing through the hole 51. The pedestal 22 also has a bent portion 53 that is interposed between the two holes 51 and accommodates a stopper mechanism such as a stopper 64 therein, and a recessed portion 52 that is interposed between the hole 51 and the bent portion 53.

The rotating shaft portion 61 of the connecting portion 6 is inserted into the recess 41 with the first cover member 4 attached to the pedestal 22 . The joint surface 42 is a portion that is butted against the joint surface 71 of the second cover member 7. The convex portion 43 is attached to support the lower end of the bent portion 53 of the back plate member 5, as shown in FIG. 9, which will be described later. This facilitates positioning when attaching the first cover member 4, and the convex portion 43 and the bent portion 53 engage with each other to prevent the first cover member 4 from lifting up. The convex portion 43 may be configured to be inserted into and assembled into the concave portion 52 of the back plate member 5 shown in FIG. 5 .

The first engaging portion 44 and the second engaging portion 46 of the first cover member 4 engage with a first engaging portion 72 and a second engaging portion 75 of the second cover member 7, which will be described later, respectively. The two cover members 4 and 7 are integrated. Furthermore, the guide protrusion 45 fits into the guide recess 73 of the second cover member 7 to prevent displacement of both cover members 4 and 7 due to thermal expansion, contraction, or impact.

The connecting portion 6 includes a rotating shaft portion 61, a shaft neck portion 62 which is caulked and fixed to the back plate member 5 together with a stopper 64 to be described later and supports the rotating shaft portion 61, a handle attachment portion 63 to which the operating portion 23 is attached, and a back side. It has a stopper 64 (not shown) that is arranged on the back surface of the plate member 5 and limits the rotation angle of the operating part 23, and a groove part 65 into which the peripheral part of the recessed part 41 is inserted with the first cover member 4 attached. It is composed of

The second cover member 7 is formed into a substantially rectangular plate shape, is abutted against the joint surface 42 at the tip of the first cover member 4, and is a member that covers the entire base 22 together with the first cover member 4. It is preferable that the second cover member 7 is made of the same material as the first cover member. This is because even if the component deteriorates over time, the color tone will be unified and the design will be improved.

The second cover member 7 may be configured independently of the back plate member 5 and the connecting portion 6, or may be formed integrally with them. For example, the second cover member 7 of this embodiment is formed integrally with the shaft neck portion 62 of the connecting portion 6 as shown in FIG. . Thereby, the second cover member 7 and the shaft neck portion 62 can be easily attached to the back plate member 5. After the second cover member 7 and shaft neck portion 62, which are integrally formed, are attached to the back plate member 5, the rotating shaft portion 61 is inserted into the shaft hole at the center of the shaft neck portion 62 and fixed. Further, the first cover member 4 can be easily attached to the second cover member 7 already attached to the back plate member 5 by sliding attachment. The two cover members 4 and 7 are not only each attached to the back plate member 5, but also the two cover members 4 and 7 are assembled together, so that they can be attached more stably.

The second cover member 7 is brought into contact with the joint surface 42 at the tip of the first cover member 4 at the joint surface 71 . The joint surfaces 71 of the second cover member 7 are formed on three sides of the rectangular parallelepiped plate, and the joint surfaces 42 of the first cover member 4 correspond to the joint surfaces 71 of the second cover member 7, so that the joint surfaces 42 are on the winning side. It is formed as follows. The two cover members 4 and 7 are joined by engaging with each other at the first engaging portions 44 and 72 and the second engaging portions 46 and 75, and the joining surfaces 42 and 71 are brought into contact with each other. Thereby, a seam between the two cover members 4 and 7 is formed on the side surface. Therefore, the joints of the cover members 4 and 7 are difficult to see from the front, and the design is improved.

The first cover member 4 is removably attached to the base 22 by sliding in the direction shown by the arrow in FIG. Since slide mounting is possible, the cover mounting process can be easily automated during manufacturing. The first engaging portion 44 and the second engaging portion 46 engage with the first engaging portion 72 and the second engaging portion 75 of the second cover member 7, respectively, to integrate the two cover members 4 and 7. become

FIG. 8 is a side view of the pedestal cover 21 viewed from the second cover member 7 side. A back plate member 5 and a first cover member 4 joined by sliding attachment are arranged on the back side of the second cover member 7 in the plane of the drawing. The joint between the first cover member 4 and the second cover member 7 is on the second cover member 7 side and is not visible when the fitting 1 is viewed from the front.

When the first cover member 4 and the second cover member 7 are assembled, the convex portion 43 engages with and supports the lower end of the bent portion 53 of the back plate member 5, as shown in FIG. As shown in FIG. 6, the lower end of the bent portion 53 of the back plate member 5 is configured to be higher than the area around the hole 51 screwed to the fitting 1. That is, the convex portion 43 of the first cover member 4 is inserted between the fitting 1 and the lower end of the bent portion 53. Thereby, the back plate member 5 can be supported against the load applied when the fittings 1 are opened and closed, and deformation of the back plate member 5 can be prevented.

The peripheral edge of the recess 41 of the first cover member 4 is inserted and fixed into a groove 65 formed between the shaft neck 62 and the back plate member 5. As a result, the first cover member 4 is sandwiched between the shaft neck portion 62 and the back plate member 5 and restrained in the vertical direction, so that it is difficult to come off during installation. Since the upper surface of the first cover member 4 is pressed downward by the shaft neck portion 62, the second engaging portions 46 and 75 can be stably engaged. When the second engaging portions 46 and 75 are engaged, it is preferable to engage the first cover member 4 while bending it against the aforementioned force.

The second cover member 7 has a recess 76 near the joint with the first cover member. As a result, by inserting a flathead screwdriver or the like into the recess 76 and applying force, the first engaging portions 44, 72 and the second engaging portions 46, 75 are disengaged, allowing the cover members 4, 7 to be attached and detached. can be easily done.

When the first cover member 4 and the second cover member 7 are assembled, the convex portion 43 engages with and supports the lower end of the bent portion 53 of the back plate member 5, as shown in FIG. As shown in FIG. 6, the lower end of the bent portion 53 of the back plate member 5 is configured to be higher than the area around the hole 51 screwed to the fitting 1. That is, the convex portion 43 of the first cover member 4 is inserted between the fitting 1 and the lower end of the bent portion 53. As a result, the back plate member 5 can be supported against the load applied when the fittings 1 are opened and closed, and deformation of the back plate member 5 can be prevented, and the first cover member 4 can be prevented from lifting up. .

(Assembling method of switchgear)
Next, a method of assembling the opening/closing device 2 will be explained. First, the pedestal engaging protrusion 74 of the second cover member 7 is inserted and engaged with the recess 52 of the back plate member 5, and the second cover member 7 is attached to the back plate member 5 as shown in FIG. . At this time, the back plate member 5 and the second cover member 7 are configured such that the positions of the shaft holes into which the rotating shaft portion 61 is inserted coincide.

Next, the handle attachment portion 63 is caulked and fixed to one end of the rotating shaft portion 61 to couple the two, and the operating handle 23a is attached to the handle attachment portion 63 by insert molding. Thereby, the operation handle 23a and the rotating shaft portion 61 are integrated.

Next, the rotating shaft portion 61 with the operating handle 23a attached to one end is inserted into the shaft holes of the back plate member 5 and the second cover member 7, and the stopper 64 is inserted from the back surface of the back plate member 5 to the other end of the rotating shaft portion 61. Fix it by caulking.

Finally, the back plate member 5 is fixed to the fitting 1 with screws to form a pedestal 22, and the first cover member 4 is attached to the pedestal 22 by sliding attachment, so that the entire pedestal 22 is covered by the pedestal cover 21. Thereby, the opening/closing device 2 is assembled.

The opening/closing device 2 of this embodiment has been described above. According to the opening/closing device 2, the following effects are achieved.

The opening/closing device 2 of this embodiment includes a pedestal 22 fixed to the fitting 1, an operation part 23 that is rotatably attached to the pedestal 22 and can lock and unlock the fitting 1 by rotational operation, and covers the entire pedestal 22. The opening/closing device 2 has a pedestal cover 21, the pedestal cover 21 is made up of a first cover member 4 and a second cover member 7, and the first cover member 4 and the second cover member 7 are attached to the pedestal. 22 is entirely housed inside. As a result, the pedestal 22 is not visible to the user, and furthermore, the pedestal cover 21 has no seam when viewed from the front of the fitting 1, and only a single component is visible, thereby improving the design.

The first cover member 4 has a convex portion that engages with and supports the pedestal when it is attached to the pedestal. This facilitates positioning when attaching the first cover member 4 and prevents deformation of the back plate member 5.

<Second embodiment>
The opening/closing device 102 (whole image not shown) according to the second embodiment of the present disclosure differs from the opening/closing device 2 according to the first embodiment in the shapes of the joint surfaces of the first cover member and the second cover member, and The configuration is the same as that of the switchgear 2.

As shown in FIGS. 10 and 11, the first cover member 104 and the second cover member 107 according to the second embodiment are formed of inclined surfaces whose joint surfaces are inclined downward at 45 degrees toward the side that covers the pedestal 22. be done. That is, the two cover members 104 and 107 are butted against each other at a right angle, and a seam is formed at the apex of the right angle. Therefore, the joints of the cover members 104 and 107 are hardly visible from either the front or the side, and the design is improved.

The first cover member 104 is removably attached to the base 22 by sliding in the direction shown by the arrow in FIG. Since slide mounting is possible, assembly can be easily automated during manufacturing. The first engaging portion 144 of the first cover member 104 engages with the first engaging portion 172 of the second cover member 107 to integrate the two cover members 104 and 107.

FIG. 13 is a side view of the cover member 121 viewed from the second cover member 107 side. The back plate member 5 and the first cover member 104 that are butted against each other by sliding attachment are arranged on the back side of the second cover member 107 in the plane of the drawing. The joint between the first cover member 4 and the second cover member 7 is located at the apex of the right angle, and is not visible not only when the fitting 101 is viewed from the front but also when viewed from the side.

If the total inclination angle of the sloped surfaces of the two cover members 4 and 7 is 90°, a seam can be formed at the corner. Furthermore, it is preferable that the inclination angles of both inclined surfaces be the same 45°. This is because both members can have the same thickness.

The opening/closing device 2 of this embodiment has been described above. According to the opening/closing device 2, the following effects are achieved.

In the opening/closing device 102 of this embodiment, the first cover member 104 and the second cover member 107 are butted against each other at the joint surfaces 142 and 171, respectively, and the joint surfaces 142 and 171 of the first cover member 104 and the second cover member 107 Both are inclined surfaces that slope downward at 45 degrees toward the side that covers the base 22. As a result, the two cover members 104 and 107 are butted against each other at a right angle, and a seam is formed at the apex of the right angle. Therefore, the joints of the cover members 104 and 107 are hardly visible from either the front or the side, and the design is improved.

<Third embodiment>
The opening/closing device 202 (whole image not shown) according to the third embodiment of the present disclosure has features in the structure of the back plate member 205 and the stopper 264 compared to the opening/closing device 2 of the first embodiment.

FIG. 14 is a back view of the back plate member 205. The stopper 264 is a plate-shaped member that is disposed on the back surface of the back plate member 205 and is connected to the rotating shaft portion 261 of the connecting portion 206 that extends toward the back of the page in FIG. The rotating shaft portion 261 has a rectangular cross section at both ends, and the rectangular end portions of the rotating shaft portion 261 are inserted into the rectangular holes both of the intermediate portion 23c of the operating portion 23 and the stopper 264, and are operated. The portion 23 and the base 222 are fitted and connected. The stopper 264 has a flat portion 265 that contacts the side wall portion 253 of the back plate member 205 and a curved portion 266 that does not contact the side wall portion 253.

The function of the stopper 264 will be explained. When a rotational force is applied to the operating portion 23, it engages with the rotational shaft portion 261 that is fitted and connected through the rectangular hole, and the rotational force is transmitted to the rotational shaft portion 261. Similarly, force in the rotational direction is transmitted from the rotating shaft portion 261 to the stopper 264. The stopper 264 that is in contact with the side wall portion 253 of the back plate member 205 cannot rotate any further because the flat portion 265 receives resistance from the side wall portion 253 depending on the direction of rotation. That is, the operating portion 23 cannot be rotated in a direction in which the stopper 264 cannot be rotated.

Since the curved surface portion 266 does not contact the side wall portion 253, the stopper 264 can rotate as long as the flat portion 265 does not contact the side wall portion 253. In the state shown in FIG. 14, the flat portion 265 is in contact with the side wall portion 253 at the upper right of the rotating shaft portion 261, so the stopper 264 cannot rotate counterclockwise. Conversely, stopper 264 can rotate up to 90° in a clockwise direction. When the stopper 264 rotates 90 degrees, the flat portion 265 comes into contact with the side wall portion 253 at the upper left of the rotating shaft portion 61. That is, in the opening/closing device 202 having the stopper 264 configured as shown in FIG. 14, the rotatable angular range of the operating section 23 is within 90 degrees.

Here, when the user rotates the operation unit 23, it is assumed that the user continues to rotate the operation unit 23 until he/she confirms that the operation unit 23 can no longer be rotated. Repeated loads will be applied as a result of operation. In order to prevent the back plate member 205 and the stopper 264 from being deformed or damaged, it is considered necessary to have sufficient durability. Nowadays, metal frames are sometimes designed to be smaller from the viewpoint of heat insulation, and there is also a need to downsize the pedestal 222, so there is also a need for improved durability.

The stopper 264 is preferably made of metal from the viewpoint of durability. Furthermore, it is preferable that the plane portion 265 on which the load is applied has a large area. This is because if the area of the flat part 265 is small, the contact area between the back plate member 205 and the side wall part 253 will be small, and a high pressure will be applied to the flat part 265, which will easily cause deformation.

The side wall portion 253 of the back plate member 205 of this embodiment has a recessed portion 254 in a portion as shown in FIG. Furthermore, the stopper 264 has two protrusions each having a right-angled portion formed by two flat parts 265 on the outer periphery of the disk. As a result, even if the width of the pedestal 222 is small, the stopper 264 can be formed large and arranged, and the diameter of the hole and the tip of the rotating shaft part 261 can be made large, and the plate thickness can be made thick. 265 area increases.

The opening/closing device of this embodiment is not limited to the above embodiment. For example, instead of the cam latch handle as in the above embodiment, the present invention may be applied to a Gremon lock or a Crescent lock. Further, the opening/closing device of the present disclosure can be applied to various fittings such as a back door and a terrace door.

DESCRIPTION OF SYMBOLS 1,101,201... Fittings, 2,102,202... Opening/closing device, 21,121... Pedestal cover, 22,222... Pedestal, 23... Operation part, 23a... Operation handle, 23b... Latch, 23c... Intermediate part, 24 ...Latch receiver, 3...Joiner frame, 4,104...First cover member, 41,141...Concave portion, 42,142...Joint surface, 43,143...Protrusion, 44,144...First engaging portion (first cover member), 45... guide convex part, 46... second engaging part (first cover member), 5,205... back plate, 51, 251... hole, 52... recessed part, 53... bent part, 253... side wall part, 254... recessed part, 6,206... connecting part, 61,261... rotating shaft part, 62,262... shaft neck part, 63,263... handle attachment part, 64,264... stopper, 65... groove part, 265... flat part , 266...Curved surface part, 7,107...Second cover member, 71,171...Joint surface, 72,172...First engaging part (second cover member), 73...Guide recessed part, 74...Pedestal engaging convex part , 75... Second engaging part (second cover member), 76... Recessed part

Claims (4)

A pedestal fixed to the fittings,
an operation unit rotatably attached to the pedestal and capable of locking and unlocking the fittings by rotational operation;
An opening/closing device comprising a cover member that covers the entire pedestal,
The cover member includes a first cover member and a second cover member,
The first cover member and the second cover member are butted against each other at their joint surfaces, and when the cover member is viewed from the front, the seam between the first cover member and the second cover member is a surface other than the front surface. An opening/closing device that is formed in a container and houses the entire pedestal therein. The first cover member has a convex portion that engages with and supports the pedestal when attached to the pedestal,
When the cover member is viewed from the front, a joint between the first cover member and the second cover member is formed on a frame side of the fitting .
The opening/closing device according to claim 1. The opening/closing device according to claim 1 or 2, wherein both the joint surfaces of the first cover member and the second cover member are inclined downward at 45° toward a side that covers the pedestal. A method for manufacturing a switchgear according to any one of claims 1 to 3, comprising:
A method for manufacturing an opening/closing device, comprising a slide mounting step of mounting the first cover member on the pedestal by slide mounting.

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