JPS6357582B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a floor inspection device with a lock.

Conventionally, many floor inspection ports have been used in which an inner frame body with a floor cover is removably fitted into an outer frame body buried in the floor to open and close the floor cover. Since there was no regulating device and people could freely enter under the floor, they had problems in terms of flood prevention and safety.

An object of the present invention is to provide a floor inspection device with a lock that can regulate opening and closing of a floor cover.

Next, a first embodiment of the present invention will be described with reference to FIGS. 1 to 3. In the figure, S is an outer frame member that is made of a light alloy material such as aluminum and is formed into an approximately L-shaped cross section, and is composed of a side piece 1 and a locking edge 2. At both end edges of the edge 2, downwardly facing leg pieces 3 and 4 having hook-shaped cross sections are provided to form grooves. Further, a step-shaped hook receiving portion 5 is formed on the inner surface of the side piece 1 at approximately the upper edge thereof. The outer frame member S is framed in a rectangular shape to form an outer frame body, and is fitted into an opening in the floor via anchor members A and the like.

T is an inner frame member of an inner frame body made of the same material as the outer frame member S, and is mainly composed of a side piece 6 corresponding to the side piece 1 of the outer frame body, and approximately on the upper edge of the same side piece 6. A projecting edge 7 projecting inward is integrally formed. In addition, the inner frame member T is framed in a rectangular shape,
A floor cover F is attached within the frame on the upper surface of the projecting edge 7 to form an inner frame body. In addition, approximately oval-shaped locking holes 8 are provided at the left and right positions of the floor cover F as shown in the figure, and a pair of locking devices J are installed therein. P is attached. Note that the side piece 6 of the inner frame member has an elongated insertion hole 21 at a position opposite to the latch receiver 5 provided on the side piece 1 of the outer frame member S, into which a latch piece 20 (to be described later) is inserted. has been established. Furthermore, the inner frame body is configured to be reversible in accordance with the floor material P.

Next, the locking device J will be explained with reference to FIG.

J1 is an insertion lock, which has a lock insertion opening 13 in the head 12, and its lower threaded part 12a is inserted into the lock locking hole 8 of the floor cover F.
Insert the floor cover F through the washer and tighten the nut J2.
is screwed to. Reference numeral J3 denotes a lock, which is composed of a rotating part 9, a locking piece insertion part 10, and a screw part 11. The rotating part 9 is inserted from below the key insertion slot 13 and is locked by a locking spring 14. , a key insertion groove 15 and a notch 16 are also provided. Further, a locking piece 20 is inserted into the locking piece insertion portion 10 having a rectangular cross section, and is tightened and fixed by a nut J4 screwed into the threaded portion 11. A pin 17 is fixed to the upper surface of the head 12 of the insertion lock J1, and a lock cover J5 is rotatably attached. Further, the rotation of the lock J3 is restricted within a predetermined range by the notch 16 coming into contact with a restriction member provided in the insertion lock J1, and the rotation range of the latch piece 20 is also restricted.

R is a key handle having a substantially T shape, and the lower end is fitted into the key insertion groove 15 of the lock J3.
A key part 18 is formed to rotate the
9 is formed.

Next, the operation and effect of the first embodiment configured as described above will be explained. As shown in FIG. 3A, the left and right lock devices J provided on the floor cover F of the inner frame body
Insert the key handle R into each and turn it approximately 90 degrees.
As the lock J3 rotates, the locking piece 20 rotates and comes off from the locking receiver 5 of the outer frame member 1, so lift the left and right key handles R at the dotted line position with respect to the floor cover F. The inner frame body can be removed from the outer frame body, and in a state where the inner frame body is fitted to the outer frame body, the locking pieces 20 are attached to the outer frame member 1 by rotating the key handle R in the opposite direction to that described above. It can be latched to a latching receiver 5 provided in the holder. Thereafter, when the key handle R is removed from the lock device J, the inner frame body is fitted into the outer frame body in a fixed state.

Therefore, by rotating the key handle R relative to the locking device J, the inner frame body can be locked easily and reliably, and the inner frame body can be easily fitted and removed by the handle 19. .

Next, another example of the first embodiment will be explained with reference to FIG. This shows an example in which the upper surface of the floor cover F in T is filled with mortar M of the same quality as the floor, and the locking device J is installed by placing the locking piece 20 opposite to the latching receiver 5 and attaching the locking device J to the floor cover. A substantially box-shaped lock mounting member 22 that opens downward is attached to the inner frame so that it horizontally rotates at the same position as the rotation position when it is attached to F, and is latched and released from the latching receiver 5. The lock device J is placed on the floor cover F which has been displaced to the lower part of the lock mounting member 22, and a lock device J is mounted in a slightly recessed recess 22a on the upper surface of the lock mounting member 22. Note that an elongated hole-shaped insertion opening 23 is provided on the left side wall of the lock mounting member 22 in the drawing, opposite to the insertion opening 21 provided in the inner frame member T.

Further, the opening/closing and locking operations of the floor cover by the lock device J and the key handle R are the same as in the first embodiment, and the same effects are obtained, so a description thereof will be omitted.

Next, a second embodiment will be described with reference to FIG. 4. In this embodiment, instead of the step-shaped hook receiving part 5 formed on the side piece 1 of the outer frame member S in the previous embodiment,
A long hole-shaped latching hole 24 is formed in the side piece 1 of the outer frame member S, and a recess 25 is further formed on the floor side, and the latching hole 24 and the recess 25 are used as a latching receiving part 5A. The locking piece 20 on the side of the locking device J is configured to engage and disengage from the locking hole 24 and the recess 25. Therefore, in this example, the same effects as described above are enjoyed. A cover 26 that cuts into the floor side is screwed to the outside of the locking hole 24 to prevent mortar from entering when the flooring material in the inner frame is mortar.

The third embodiment will be explained with reference to FIGS. 5A and 5B. In FIG. The locking piece 20A is opened to form a locking receiving part 5B, and the locking piece 20A on the side of the locking device J is bent to have a substantially Z-shaped cross section. The fifth
Figure B shows an example in which mortar is used as the flooring material in the inner frame, and the other configurations are the same as those described above, and both enjoy the same effects as the previous example. In the case shown in FIG. 5B, a long hole 28 is formed in the floor cover F into which the hooking piece 20A is inserted. Next, the fourth embodiment will be explained with reference to FIGS. 6A and 6B. In FIG. A latching receiving piece 29 having a substantially Z-shaped cross section extending upward is attached to the latching receiving part 5C, while a latching piece 20B extending horizontally toward the locking device J side is attached to the latching receiving piece 29.
The hanging piece 20B is configured to be removably attached to the lower surface of the upper piece 29a. FIG. It enjoys the same effects as the above. In the case shown in FIG. 6B, a long hole 30 is formed in the floor cover F into which the hanging piece 29b of the hooking piece 29 is inserted.

Next, another example of the fourth embodiment will be explained with reference to FIG.
A latching receiving piece 31 is installed horizontally on the lower surface of the latching receiving part 5D, while a latching piece 20C is bent into a substantially Z-shaped cross section on the side of the locking device J.
The lower horizontal piece 32 of the hooking piece 20C is attached to the lower surface of the tip of 1.
This is an example in which the device is configured to hang, and the same effects as in this example and the previous example can be enjoyed.

Next, the fifth embodiment will be explained with reference to FIGS. 8A and 8B. In FIG.
A latching receiving piece 33 extending horizontally is attached to the lower surface of the latching receiving part 5E, while a latching receiving piece 33 on the side of the locking device J
The threaded portion 11 of is extended to form a latching piece 20D extending horizontally at the lower end, and the upper surface of the latching piece 20D is configured to be detachable from the lower surface of the latching receiving piece 33. This is an example in which mortar is used as the flooring material in the inner frame, and the other configurations are the same as those described above, and both enjoy the same effects as the previous example. In the case shown in FIG. 8B, a hole 34 into which the threaded portion 11 is inserted is formed in the floor cover F.

In each of the embodiments described above, a pair of locking devices J are provided on the left and right sides, but the present invention is not limited to this. For example, as shown in FIG.
One piece is provided, and the left and right latching pieces 20 are attached by crank C.
E, 20E may be configured to move in and out of the hook receiving portion of the outer frame member S.

As described above, in the present invention, the locking edge protruding inward is formed by framing the outer frame member formed near the lower end of the inner wall surface in a rectangular shape, and the locking holder is opened inward. The inner frame member is formed by framing in a rectangular shape an outer frame member in which a part is formed, and an inner frame member in which an inwardly protruding overhanging edge is formed at a position offset from the center part in the vertical direction of the inner wall surface. an inner frame fitted into the outer frame and supported by the locking edge; a floor cover supported by the projecting edge and laid within the inner frame; and a floor cover installed within the inner frame. A lock-equipped floor inspection comprising: a locking device including a locking piece that is engaged with and detached from the locking receiver by horizontal rotation; and a lock mounting member that is removably installed on the floor cover. In the apparatus, the inner frame body is fitted into the outer frame body such that the overhanging edge and the floor cover are disposed above the inner frame body, and the locking device is attached to the floor cover. In some cases, the latch piece is disposed at the same height as the latch receiver, and the inner frame is arranged so that the projecting edge and the floor cover are disposed below the inner frame. When the locking device is mounted on the lock mounting member by inverting and fitting it into the frame and installing the lock mounting member on the floor cover, the latch piece is at the same height as the latch receiver. By configuring it so that the floor inspection door can be locked easily and reliably, it has excellent flood prevention and safety effects, and
This has the effect that the floor inspection door can be locked even if the flooring material laid on the floor is different.

[Brief explanation of drawings]

The drawings show each embodiment of the present invention. Fig. 1 is a schematic plan view including a partial cross section showing the first embodiment, Fig. 2 is an exploded perspective view showing the locking device, Fig. 3 B is a partially extracted longitudinal sectional view showing the first embodiment, FIG. 4 is a partially extracted longitudinal sectional view showing another example of the second embodiment, and FIGS. Extracted longitudinal cross-sectional views, FIG. 6 A and B are partially extracted longitudinal cross-sectional views showing the fourth embodiment, FIG. 7 is a partially extracted longitudinal cross-sectional view showing another example of the fourth embodiment, and FIGS. B is a partially extracted vertical cross-sectional view showing the fifth embodiment, and FIG. 9 is a schematic plan view including a partial cross section showing another example of how the locking device is attached. 1, 6... Side piece, 7... Overhanging edge, S... Outer frame member, T... Inner frame member, J... Locking device, 20... Latching piece, 5... Latching receiver, P...floor material, F...floor cover, R...key handle.

Claims (1)

[Claims] 1. An outer frame body formed by framing an outer frame member in a rectangular shape with an inwardly protruding locking edge formed near the lower end of the inner wall surface, and in which a locking receiving part that opens inward is formed; It is formed by framing an inner frame member in a rectangular shape, with an overhanging edge protruding inwardly formed at a position offset from the vertical center of the inner wall surface, and is fitted into the outer frame body to an inner frame body supported by a locking edge;
A floor cover supported by the projecting edge and installed in the inner frame body, and a latch piece installed in the inner frame body and engaged with and detached from the latch receiving part by a horizontal rotation operation. A locking floor inspection device comprising: a locking device with a lock attached thereto; and a lock mounting member removably installed on the floor cover, wherein the inner frame body is attached to the overhanging edge and the floor cover is attached to the inner frame. When the locking device is fitted into the outer frame so as to be disposed on the upper part of the body and the locking device is attached to the floor cover, the locking piece is disposed at the same height as the locking receiver, and The inner frame body is inverted and fitted into the outer frame body so that the overhanging edge and the floor cover are disposed below the inner frame body, and the lock mounting member is installed on the floor cover. A floor inspection device with a lock, characterized in that the locking piece is arranged at the same height as the locking receiver when the locking device is mounted on the lock mounting member.