JP7312962B2 - Mounting frame for wiring device - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Law 1. (1) Publication month: March 2018 (2) Publication: "Electrical Materials Sales Bulletin March 2018" (3) Publisher: Panasonic Corporation (4) Details of the disclosed invention Panasonic Corporation published the "wiring device mounting frame" invented by Shutetsu Ujihara and Takashi Kawamoto in the "Electrical Materials Sales Bulletin March 2018". 2. (1) Publication month April 2018 (2) Publication "Electrical Construction Materials General Catalog 2018-2020" (3) Publisher Panasonic Corporation (4) Details of the disclosed invention Panasonic Corporation published the "wiring device mounting frame" invented by Shutetsu Ujihara and Takashi Kawamoto in the "Electrical Construction Materials General Catalog 2018-2020".

The present disclosure relates to an attachment frame for wiring accessories.

Conventionally, there has been proposed a mounting frame for a wiring device that holds a wiring device such as a piano handle switch and is attached to a wall with the rear portion of the wiring device stored in an embedding hole formed in a wall surface or the like (see, for example, Patent Document 1).

The mounting frame for the wiring device may be fixed to the embedding hole of the wall surface using a clamp. Specifically, the wiring device mounting frame has fixing holes into which fixing screws are inserted in each of the upper end and the lower end. A fixing screw is passed through the fixing hole, and tightened while screwing the fixing screw into the screw holes of the two clip fittings arranged on the rear side of the mounting frame for the wiring device. As a result, the upper opening edge and the lower opening edge of the embedding hole in the wall surface are clamped between the upper end of the wiring device mounting frame and the clamp and between the lower end of the wiring device mounting frame and the clamp, and as a result, the wiring device mounting frame is fixed to the embedding hole.

JP 2017-50296 A

The thickness of the wall material to which the mounting frame for the wiring device is attached may vary depending on the type and the number of the wall materials. Therefore, it is preferable to be able to attach the mounting frame for the wiring device using the same clip even when the width of change in the wall thickness is large.

An object of the present disclosure is to increase the width of change in wall thickness that can be accommodated when attaching a mounting frame for a wiring device to a construction surface using a clamp.

A wiring device mounting frame according to the present disclosure includes a plate-like mounting frame main body in which a device mounting window for mounting a wiring device is formed by a pair of fixing frame pieces and a pair of side frame pieces integrally connected to both left and right ends of both fixing frame pieces. The fixing frame piece has fixing holes through which fixing screws for fixing the mounting frame to the construction surface are inserted in order from the equipment mounting window side, and a plate mounting base to which a decorative plate covering the mounting frame body is mounted and which protrudes toward the decorative plate side. A concave portion into which the inclined outer peripheral surface of the fixing screw is fitted is formed in the peripheral edge of the fixing hole on the instrument mounting window side on the rear surface of the fixing frame piece.

According to the wiring device mounting frame according to the present disclosure, it is possible to increase the width of change in wall thickness that can be accommodated when the wiring device mounting frame is mounted on a construction surface using a clamp.

1 is an exploded perspective view of a wiring device using a mounting frame for wiring accessories according to an embodiment; FIG. It is a front view of the state where the wiring accessories were attached to the mounting frame for wiring accessories of the same embodiment. It is a side view of the state where the wiring accessories were attached to the mounting frame for wiring accessories of the same embodiment. It is the perspective view which looked at the state by which the wiring accessory was attached to the attachment frame for wiring accessories of the same embodiment from diagonally back. It is a front view of a wiring device using the mounting frame for wiring accessories of the same embodiment. It is the (a) front view, (b) rear view, and (c) right side view of the mounting frame for wiring accessories of the same embodiment. FIG. 6(a) is a cross-sectional view taken along the line AA in FIG. 6(a); (a) is a cross-sectional view showing a state in which the wiring device mounting frame is fixed to the construction surface by screwing the fixing screw into the clip in a horizontal state, and (b) is a cross-sectional view showing the state in which the wiring device mounting frame is fixed to the construction surface by screwing the fixing screw into the clip in an inclined state. It is an upper front view of the mounting frame for wiring accessories of another embodiment.

Embodiments according to the present disclosure will be described in detail below with reference to the accompanying drawings. In this description, specific shapes, materials, numerical values, directions, etc. are examples for facilitating understanding of the present disclosure, and can be changed as appropriate according to usage, purpose, specifications, and the like. In addition, when a plurality of embodiments and modifications are included below, it is assumed from the beginning that the characteristic parts thereof will be used in combination as appropriate.

As shown in FIG. 1 , the wiring device includes a wiring device mounting frame (hereinafter referred to as a mounting frame) 1 , a piano handle type switch 10 as a switch device, and a decorative plate 4 . In the following description, directions of up, down, left, right, front and back in FIG. 1 are defined unless otherwise specified.

First, an embedded wiring device attached to the mounting frame 1 will be described. In this embodiment, a wide handle type switch (a so-called piano handle type switch) is exemplified, but as long as it is an embedded wiring device, it may be a switch other than a wide handle type switch or a wiring device other than a switch such as an outlet.

As shown in FIG. 1 , the switch 10 has a switch body 100 and an operating handle 110 .

As shown in FIGS. 1 to 4, the switch body 100 is shaped like a rectangular box. As shown in FIGS. 1 and 2, a push button 101 is attached to the front surface of the switch body 100 so as to be movable in the front-rear direction. A contact switching mechanism (not shown) is configured such that the state of a contact (not shown) housed inside the switch body 100 (for example, the closed state and the open state) is switched each time the push button 101 is pushed.

A light-transmitting lamp cover 102 is attached to the left side of the front face of the switch body 100, substantially in the center in the vertical direction. Inside the switch body 100, for example, a lamp (not shown) that is lit when the contacts are open is housed, and light emitted from the lamp is transmitted through the lamp cover 102 and emitted forward.

Two mounting claws 103 for mounting the switch body 100 to the mounting frame 1 are provided on each of the left side and the right side of the switch body 100 . In the right side wall of the switch body 100, a slit is formed around the part provided with the two mounting claws 103, and the part provided with the two mounting claws 103 (this part is called a movable piece 104) is cantilevered on the switch body 100 at its front end side. Therefore, by pushing the projection 105 provided at the rear of the movable piece 104, the two mounting claws 103 provided on the movable piece 104 can be retracted toward the inside (center side) of the switch body 100.

Two columnar shafts 106 for supporting the operation handle 110 are arranged on both sides of the lamp cover 102 on the left side of the front surface of the switch body 100 .

As shown in FIG. 4, the rear portion of the switch body 100 is provided with two wire insertion holes 107 on each side (only two on the right side are shown in FIG. 4) for inserting wires (not shown). Inside the switch body 100, connection terminals of a quick connection structure electrically connected to both side terminals of the contact are housed, and the core wire of the electric wire inserted from the electric wire insertion hole 107 is connected to the connection terminals.

Since such a switch body 100 is conventionally well known, illustration and description of the detailed structure are omitted.

As shown in FIG. 1, the operation handle 110 includes a front wall portion 112 having a front surface 112a and side wall portions 113 extending rearward from the four edges of the front wall portion 112, which are integrally formed as, for example, a synthetic resin molding. The front wall portion 112 is formed in a substantially rectangular plate shape having dimensions sufficiently larger than the front surface of the push button 101 . The side wall portion 113 is configured to have a rectangular tubular shape with four side walls. On the right side of the front face 112a of the operating handle 110, an oval hole is provided in the center in the vertical direction and passes through the operating handle 110 in the front-rear direction, and the transparent plate 111 is embedded in this hole.

A prism (not shown) that guides the light emitted from the lamp cover 102 of the switch body 100 to the transparent plate 111 is attached to the back surface of the operation handle 110 . When the contacts are open, the light from the lamp housed in the switch body 100 illuminates the translucent plate 111, so that the position of the switch 10 can be indicated by this light.

A bearing (not shown) to which the shaft 106 is rotatably attached is provided on the back surface (rear surface) of the operating handle 110 at a portion facing the shaft 106 of the switch body 100 . The operation handle 110 is rotatably supported on the front surface of the switch body 100 at one end (left side) in the left-right direction by holding the shaft 106 in the bearing portion. When the right side of the operating handle 110 is pushed backward, the operating handle 110 rotates around a portion supported by the shaft 106, and the push button 101 is pushed by a projection (not shown) provided on the back surface of the operating handle 110.例文帳に追加

Next, the mounting frame 1 will be described with reference to FIGS. 1 to 4. FIG. The mounting frame 1 is formed in a rectangular frame shape having a device mounting window 18 to which a switch body 100, which is a wiring device, is mounted by press-molding a metal plate-like member. The mounting frame 1 includes a pair of fixed frame pieces 11 that face each other across the appliance mounting window 18 in the longitudinal direction (vertical direction in FIG. 1), and a pair of side frame pieces 12 that face each other across the appliance mounting window 18 in a direction that intersects the direction in which the pair of fixed frame pieces 11 face each other (horizontal direction). The pair of side frame pieces 12 are integrally connected to the left and right ends of the pair of fixed frame pieces 11, respectively. A pair of fixing frame pieces 11 and a pair of side frame pieces 12 constitute a plate-shaped mounting frame main body 5 . A space surrounded by the pair of fixed frame pieces 11 and the pair of side frame pieces 12 in the mounting frame main body 5 serves as an instrument mounting window 18 .

Each of the pair of fixed frame pieces 11 is provided with a fixing hole 13 into which a fixing screw 70 (see FIG. 8) is inserted for fixing the fixed frame piece 11 to the wall material with the back side of the fixed frame piece 11 in contact with the surface of a building material such as a wall material (hereinafter referred to as a construction surface). Each of the pair of fixing frame pieces 11 is provided with a screw hole 14 on the outside of the fixing hole 13 in the vertical direction (on the side opposite to the instrument mounting window 18) and substantially in the center in the horizontal direction.

Also, as shown in FIG. 2, the opposing ends 11d of the pair of fixed frame pieces 11 are bent forward.

The pair of side frame pieces 12 are bent rearward at approximately 90 degrees at the outer end portions 12c located on the opposite side of the opposing end portions 12b. At this time, the outer ends 12c of the pair of side frame pieces 12 are configured such that their surface directions are substantially parallel. Further, each of the outer end portions 12c is provided with a plurality of (e.g., eight) through holes 15a and 15b into which the mounting claws 103 of the switch body 100 are respectively inserted as holding portions for holding wiring devices.

Here, the through holes 15a and 15b have a first through hole 15a and a second through hole 15b that is longer (wider) in the vertical direction than the first through hole 15a. The first through hole 15 a has an opening area corresponding to the mounting claw 103 of the switch body 100 . Therefore, by inserting two mounting claws 103 provided on each side of the switch body 100 into the first through holes 15a, the switch body 100 is mounted on the mounting frame 1 with the front end portion of the switch body 100 protruding forward from the device mounting window 18 (see FIGS. 2 to 4).

The mounting frame 1 is fixed to the construction material by attaching it to a switch box (not shown) embedded in the construction material with the rear surface (rear surface) of the fixing frame piece 11 in contact with the periphery of the embedding hole 201 provided in the construction material (see FIG. 8). However, when the switch box is not embedded, the mounting frame 1 is fixed to the construction material using clamps 40 as described later with reference to FIG.

A locking portion 11b is formed at a corner portion of the fixing frame piece 11 of the mounting frame 1. As shown in FIG. The engaging portion 11b is an extending piece extending in the plane direction (horizontal direction or vertical direction) of the front surface of the fixing frame piece 11 and configured to engage with the engaging portion 11b of another mounting frame 1 . Therefore, it is possible to arrange a plurality of mounting frames 1 side by side in the left-right direction. A projection 11c extending in the front-rear direction is formed in the vicinity of the engaging portion 11b. The projecting portion 11c is adjusted so that the total amount of projection thereof is longer than the front-rear width of the through holes 15a and 15b when combined with the engaging portion 11b. As a result, the protruding portion 11c acts as a restricting portion to prevent the locking portions 11b from being deeply inserted into the through holes 15a and 15b of the other mounting frame 1. As shown in FIG.

Next, the decorative plate 4 attached to the front side of the attachment frame 1 will be described. As shown in FIG. 1 , the decorative plate 4 includes a plate body 2 attached to the mounting frame 1 and a plate cover 3 detachably attached to the plate body 2 so as to cover the plate body 2 .

As shown in FIG. 1, the plate body 2 is formed of a synthetic resin material in the shape of a rectangular frame having a pair of horizontal pieces 21 and a pair of vertical pieces 22 . Here, the window hole 20 surrounded by the pair of horizontal pieces 21 and the pair of vertical pieces 22 is provided at a position overlapping the instrument mounting window 18 of the mounting frame 1 in the front-rear direction with the plate body 2 mounted on the mounting frame 1.

Each of the pair of horizontal pieces 21 is provided with an insertion hole 23 for inserting a screw in the central portion in the left-right direction. Further, each of the pair of vertical pieces 22 is formed with a rectangular through-hole 24 at the central portion and both side portions thereof in the longitudinal direction (vertical direction). In addition, one lateral piece 21 (lower side in FIG. 1) is provided with concave portions 25 opened forward and downward on both left and right sides of the lower end.

As shown in FIG. 1, the plate cover 3 includes a front wall 30 having a front surface and side walls 31 surrounding the front wall 30, which are integrally formed as a synthetic resin molding. As shown in FIG. 5 , the front wall 30 has a rectangular shape with four curved corners when viewed in the front-rear direction, and is formed in a curved shape that bulges forward from the periphery toward the center. A rectangular window 32 penetrates through the center of the front wall 30 . Further, on the rear surface of the front wall 30, hooks (not shown) are provided at portions corresponding to the plurality of through holes 24 provided in the plate body 2.

The side wall 31 is formed in an annular shape with a front end connected to the peripheral edge of the front wall 30 . The side wall 31 is configured to slope outward toward the front. Further, the sidewall 31 is provided with a recess (not shown) at a position facing the recess 25 of the plate body 2 .

Note that up to three switch bodies 100 can be attached to the attachment frame 1 of the present embodiment. When only one switch body 100 is attached to the mounting frame 1, the switch body 100 is attached near the center of the mounting frame 1 in the vertical direction, as shown in FIG. When three switch bodies 100 are attached to the mounting frame 1, the three switch bodies 100 are mounted in the device mounting window 18 so as to line up in the vertical direction without gaps. In FIG. 2, the switch bodies 100 are attached to the upper and lower sides of the switch body 100 attached to the center of the mounting frame 1, respectively.

Next, with reference to FIGS. 6 to 8, characteristic portions of the mounting frame 1 of this embodiment will be described in detail.

As shown in FIG. 6, the pair of fixed frame pieces 11 of the mounting frame 1 are formed with plate mounts 16 . The plate mounting base 16 is a portion of the decorative plate 4 that covers the mounting frame main body 5 to which the plate body 2 is mounted, and protrudes toward the decorative plate 4 side. The plate mounting base 16 is narrower than the elongated fixing hole 13 extending in the left-right direction, and is formed so as to extend from the upper and lower edges of the fixing frame piece 11 to the edge of the fixing hole 13 . As a result, the edge portion of the fixing hole 13 is one step higher toward the front on the opposite side (that is, the plate mounting base 16 side) than the instrument mounting window 18 side.

Hooking holes 19 are formed on both sides of the fixing hole 13 in the left-right direction in each of the pair of fixing frame pieces 11 . The hooking hole 19 is substantially L-shaped when viewed from the front, and has a narrower width on the device mounting window 18 side and a wider width on the opposite side. The hooking pieces 42 of the clamping metal fittings 40 are hooked on these hooking holes 19 when the mounting frame 1 is attached to the construction surface using the clamping metal fittings 40 to be described later.

FIG. 7 is a sectional view taken along the line AA in FIG. 6(a). As shown in FIGS. 6( a ) and 7 , the peripheral corners of the fixing holes 13 on the front surfaces (front surfaces) of the pair of fixing frame pieces 11 are chamfered to form chamfered portions 50 . In this embodiment, the chamfered portion 50 is formed over the entire circumference of the fixing hole 13 .

Further, as shown in FIGS. 6B and 7, recesses 52 are formed in the peripheral corners of the fixing holes 13 on the back surfaces (rear surfaces) of the pair of fixing frame pieces 11 . In the present embodiment, the recessed portion 52 is formed such that the peripheral corners are chamfered at the central portion in the left-right direction of the fixing hole 13 . As will be described later, when the mounting frame 1 is attached to the construction surface 200a using a clip 40 (see FIG. 8), the recess 52 is fitted with the slanted fixing screw 70, and the outer peripheral surface of the recess 52 contacts the bottom surface of the recess 52.

8A is a cross-sectional view showing a state in which the mounting frame 1 is fixed to the construction surface 200a by the fixing screw 70 being screwed into the clip fitting 40 in a horizontal state, and FIG. 8B is a cross-sectional view showing a state in which the wiring device mounting frame is fixed to the construction surface 200a by screwing the fixing screw 70 into the clamp fitting 40 in an inclined state. The configuration of the clamping metal fitting 40 and the procedure for attaching the mounting frame 1 to the construction surface 200a using the clamping metal fitting 40 will be described below.

The clip fitting 40 is made of a metal material such as a galvanized steel plate. The sandwich metal fitting 40 has a metal fitting main body 41 and a pair of hooking pieces 42, as shown in FIG. 8(a). The metal fitting main body 41 is formed with a first piece 41a and a second piece 41b in a substantially U shape when viewed in the left-right direction. A pair of hooking pieces 42 are integrally formed at the lower end of the second piece 41b. Also, the pair of hooking pieces 42 are provided at positions near both ends of the second piece 41 b in the left-right direction, and the distance in the left-right direction is substantially the same as the distance between the pair of hooking holes 19 of the mounting frame 1 .

Next, a procedure for attaching the mounting frame 1 to the construction surface 200a using the clamps 40 will be described. When attaching the mounting frame 1 to the construction surface 200a using the clamps 40, two clamps 40 are used, but since they are attached in the same procedure, only one (upper) clamp 40 will be described here.

The operator connects the mounting frame 1 and the clip fitting 40 using the fixing screws 70 in a state in which each of the pair of hooking pieces 42 is hooked in the corresponding hooking hole 19 of the pair of hooking holes 19 . More specifically, the clip fitting 40 is formed with a threaded hole inside the burred portion, and is connected by screwing the threaded portion 72 of the fixing screw 70 into the threaded hole.

After that, the operator tightens the fixing screw 70 while the mounting frame 1 and the clamping member 40 are positioned so that the mounting frame 1 is forward and the clamping member 40 is backward with respect to the wall material 200 . As a result, the mounting frame 1 is fixed to the construction surface 200a by sandwiching the wall material 200 between the end portion of the fixed frame piece 11 and the first piece 41a of the clamp 40 in the front-rear direction.

At this time, the head tapered surface 71 of the fixing screw 70 comes into contact with the upper edge of the fixing hole 13 . Therefore, if there is no chamfered portion, the head of the fixing screw 70, which is the position indicated by the two-dot chain line in FIG. Therefore, it is possible to prevent the head of the fixing screw 70 from interfering with the plate body 2 of the decorative plate 4 provided to cover the mounting frame 1 .

The thickness of the wall material 200 to which the mounting frame 1 is fixed in the front-rear direction is not uniform, and varies depending on the type of the wall material 200, the number of laminated layers, and the like. When the thickness of the wall material 200 is large, as shown in FIG. 8(b), the threaded portion 72 of the fixing screw 70 is inclined downward from the front to the rear. At this time, the threaded portion 72 of the fixing screw 70 can be fitted into the recessed portion 52 provided on the periphery of the fixing hole 13 on the back side. As a result, the fixing screw 70 can tighten the clip fitting 40 while being inclined at a larger angle than when there is no recess. That is, by inclining the fixing screw 70 in this way, the dimension between the metal fitting main body 41 and the fixing frame piece 11 can be widened. As a result, when the mounting frame 1 is attached using the clip 40, the range of change in the thickness of the wall material 200 that can be accommodated can be increased.

As described above, the mounting frame 1 of the present embodiment includes a plate-shaped mounting frame body 5 in which a device mounting window 18 for mounting a wiring device is formed by a pair of fixing frame pieces 11 and a pair of side frame pieces 12 integrally connected to the left and right ends of both fixing frame pieces 11. The fixing frame piece 11 has a fixing hole 13 through which a fixing screw 70 for fixing the mounting frame 1 to the construction surface 200a is inserted, in order from the equipment mounting window 18 side, and a plate mounting base 16 to which the decorative plate 4 covering the mounting frame main body 5 is mounted and which protrudes toward the decorative plate 4 side. A concave portion 52 into which the outer peripheral surface of the threaded portion 72 of the inclined fixing screw 70 is fitted is formed in the peripheral edge of the fixing hole 13 on the instrument mounting window 18 side on the back surface of the fixing frame piece 11 .

According to this configuration, when the mounting frame 1 is attached using the clip 40, the width of change in the thickness of the wall material 200 that can be accommodated can be increased.

In the mounting frame 1 of this embodiment, the back surface of the fixing frame piece 11 and the periphery of the fixing hole 13 are chamfered. According to this configuration, the amount of protrusion of the head of the fixing screw 70 from the fixing frame piece 11 can be reduced, and as a result, the head of the fixing screw 70 can be suppressed from interfering with the plate body 2 of the decorative plate 4 provided covering the mounting frame 1. - 特許庁

The wiring device attachment according to the present disclosure is not limited to the above-described embodiments and modifications thereof, and various modifications and improvements are possible within the scope of the matters described in the claims of the present application.

For example, in the above description, an example in which the chamfered portion 50 is formed along the entire periphery of the fixing hole 13 on the rear surface of the fixing frame piece 11 has been described, but the present invention is not limited to this. As shown in FIG. 9, the chamfered portion 50A may be formed on the entire circumference other than the portion adjacent to the plate mounting base 16. As shown in FIG. That is, the corners of the peripheral edges of the fixing holes 13 that come into contact with the plate mount 16 are not chamfered. According to this configuration, when the fixing screw 70 is tightened, the head of the fixing screw 70 is brought into contact with the peripheral edge portion of the fixing hole 13 on the plate mounting base 16 side more quickly, so that the fastening force of the fixing frame piece 11 to the construction surface 200a can be obtained. As a result, by delaying the timing at which the head of the fixing screw 70 comes into contact with the peripheral edge of the fixing hole 13 on the instrument mounting window 18 side, the pressing force on the peripheral edge can be reduced. As a result, it is possible to suppress bending deformation of the vertical central region (ie, the pair of side frame pieces 12 ) of the mounting frame 1 .

1 mounting frame for wiring device 2 plate body 3 plate cover 4 decorative plate 5 mounting frame main body 10 switch 11 fixing frame piece 11b locking portion 11c protrusion 11d, 12b opposite end portion 12 side frame piece 12c outer end portion 13 fixing hole 14 screw hole 15a, 15b, 24 through hole 16 plate mounting base 18 appliance mounting window , 19 Hook hole 20 Window hole 21 Horizontal piece 22 Vertical piece 23 Insertion hole 25, 52 Recess 30 Front wall 112a Front surface 31 Side wall 32 Window 40 Clamp metal fitting 41 Metal fitting body 42 Hook piece 50, 50A Chamfered portion 70 Fixing screw 71 Head tapered surface 72 Threaded portion 100 Switch body 101 Push button, 102 lamp cover, 103 mounting claw, 104 movable piece, 105 projection, 106 shaft, 107 wire insertion hole, 110 operation handle, 111 translucent plate, 112 front wall portion, 113 side wall portion, 200 wall material, 200a construction surface, 201 embedding hole.

Claims (3)

A plate-shaped mounting frame body having a device mounting window for mounting a wiring device formed by a pair of fixed frame pieces and a pair of side frame pieces integrally connected to both left and right ends of the fixed frame pieces,
The mounting frame main body is fixed to the construction surface by sandwiching the wall material between the end portion of the fixing frame piece and the clip in the front-rear direction,
The fixing frame piece has, in order from the appliance mounting window side, a fixing hole through which a fixing screw connecting the mounting frame main body and the clip fitting is inserted, and a decorative plate covering the mounting frame main body, and a plate mounting base projecting toward the decorative plate side,
A concave portion into which the inclined outer peripheral surface of the fixing screw is fitted is formed in the peripheral edge of the fixing hole on the instrument mounting window side on the back surface of the fixing frame piece,
A locking portion is formed at a corner portion of the fixed frame piece,
The engaging portion is an extending piece extending in the surface direction of the front surface of the fixing frame piece and configured to engage with the engaging portion of another mounting frame ,
The fixing screw is inclined downward from the front to the rear,
Mounting frame for wiring devices. 2. The mounting frame for a wiring device according to claim 1, wherein a surface of said fixing frame piece and a peripheral edge of said fixing hole are chamfered. 3. The wiring accessory mounting frame according to claim 2, wherein said chamfer is formed on the entire periphery other than the portion adjacent to said plate mounting base.

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