JP2563043Y2 - Switchgear with lock mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to an opening / closing device with a lock mechanism that is used by being attached to an opening / closing body such as a lid or a door that pivots and opens / closes.

(Prior Art) In an opening / closing body such as a lid attached to a frame body such as a steel box via a hinge so as to have a pivoting axis so as to be pivotable about the axis, it is necessary to provide a handle for opening / closing operation. When the opening / closing body integrally provided with a lock mechanism on the handle is closed with respect to the frame body, a technique for locking the automatic opening / closing of the opening / closing body is also a conventional technique. It is well known that a device comprising a combination of a handle shape and a lock mechanism has been proposed in the general market.

If the purpose of this locking method is to prevent inadvertent opening movement of the closed opening / closing body, closing the opening / closing body automatically locks the built-in locking mechanism by the action of the biasing spring. After that, a method of inserting a key into a built-in lock and setting it in a locked state is generally used. In general, the lock is released by a method linked to the operation of the handle, a method of operating a key inserted into a keyhole of a lock, or the like.

(Problems to be Solved by the Invention) In many systems of the related art which release the lock by interlocking with the operation of the handle, for example, grasping the handle or pulling the handle and pulling it toward the user Although the release function acts on the internal lock mechanism of the handle by the operation, if it is necessary to pull the handle toward you, this operation directly leads to the operation of opening and closing the opening and closing body. Seems extremely useful. However, if both hands of the person who operates the opening / closing body are closed by baggage, it is difficult to release the lock unless the baggage is released once and the hand is freed and the handle is pulled.
In such a case, there is a problem that it takes time to release the lock.

An object of the present invention is to provide an opening / closing device with a lock mechanism that can release a lock without having to release a load.

(Means for Solving the Problem) The gist of the present invention to solve the problem is as follows.

The present invention presupposes an opening and closing device with a lock mechanism capable of closing an opening and closing body that opens and closes by rotating with respect to a fixed frame body.

Under these assumptions, the features of the present invention are as follows. A main body 2 fixed to the outside of the opening / closing body, a lever member 3 mounted on the front side of the main body 2, and a lock rotatably mounted on the rear side of the main body 2; The main body 2 is interposed between the member 28 and the lever member 3 and the lock member 28.
And a connecting member 23 that is rotatably mounted on the connecting member 23. A lever configured to be pivotable in the counterclockwise direction by pressing the lever member 3 in a counterclockwise direction from the front side to the rear side of the main body 2; And an engaging portion 19 in contact with the connecting member 23. The lock member 28 is spring-biased so as to rotate clockwise.
An engaging portion 33 that can prevent opening and closing of the opening / closing body when it is detachably engaged with a locking portion formed on the frame under the bias of the spring; 23 and cam surfaces 29a to 29e that can be engaged. The connection member 23 is spring-biased so as to rotate counterclockwise about the rotation shaft 22 and is formed on a first engagement arm 25 extending radially outward from the rotation shaft 22. Cam follower 27 is part of the cam surface 29
b to prevent the lock member 28 from rotating clockwise, while the second engagement arm 24 extending radially outward from the rotation shaft 22 engages the engagement portion of the lever member 3. The lever member 3 is urged in a clockwise direction by pressing against the counterclockwise direction 19. When the lever of the lever member 3 is pressed in the counterclockwise direction against the bias in the clockwise direction, the engaging portion 19 of the lever member 3 presses the second engaging portion 24 of the connecting member 23. With the connecting member 23
The cam followers 27 allow the lock member 28 to rotate from the cam surface portion 29b.
And the lock member 28 rotates, whereby the engagement between the engagement portion 33 and the engagement portion of the frame is released, and the opening / closing body can be opened.

(Operation) When the opening / closing body is closed with respect to the frame, the lock member and the connecting member of this device are engaged at the locked position, and the engagement portion of the lock member and the locking portion of the frame are engaged. In this case, the lock member cannot rotate freely, and the opening / closing body is in the locked state. When the opening / closing member is opened, when the lever member of the device is pressed in a direction from the front side to the back side of the device main body, the connecting member is disengaged from the lock position, and the engaging portion of the lock member is engaged with the frame. The lock can be released from the stop, and the lock by the device is released.

(Examples) The details of the present invention will be described with reference to the accompanying drawings as follows.

1 and 2 are a front view and a rear view of a handle 1 which is the opening / closing device with a lock mechanism of the present invention. The handle 1 includes a main body 2, a lever member 3 attached to the front side of the main body 2,
The lock mechanism 4 includes a lock mechanism 4 attached to the rear side of the main body 2, a bracket 11, and the like. The lock mechanism 4 is disengaged from a locking member 5 (detailed in FIG. 4). Each member is made of a metal material, engineering plastics material, or the like that is incompatible with its shape and required functions, and is obtained by applying a conventional molding means to each material.

At the end of the main body 2, there are provided an arcuate edge 6 and a recess 7A (see FIGS. 3 and 4) for catching hands and fingers to facilitate the operation of the handle 1.

FIG. 3 is a side view of the handle 1 showing the presence of the recess 7A. The handle 1 is assembled into the panel 9 by the body 2 and the bracket 11 attached to the boss 8 provided on the back side thereof with a screw 10 cooperating with each other to clamp a lid panel 9 as an opening / closing body.

FIG. 4 is a cross-sectional view taken along line XX in FIG. 3, and a frame body to which a locking member 5 formed by bending a metal round bar is fixed.
12 shows a state where the lid panel 9 in which the handle 1 is incorporated is closed and the opening movement of the lid panel 9 is locked. In order to make the following description clear, orthogonal coordinate axes X and Y having the origin at the center of the locking member 5 are provided in the figure. X is horizontal axis, Y
Is the vertical axis orthogonal to this. Although not shown, the lid panel 9 has a hinged portion at the top of the figure, is hinged to the frame 12, is pivotable in the direction of arrow A, and can be opened relative to the frame 12. . The handle 1 is configured such that the lever member 3 is
7B, the surface 14 is substantially coplanar with the front surface 13 of the main body 2, and is rotatably supported by a pair of first support shafts 18 protruding oppositely into the laterally opposed side surfaces of the main body 2; The free end of the member 3 extends vertically upward in the drawing toward the screwing portion. Attachment of the handle 1 to the lid panel 9
The pivot axis of the hinged portion of the lid panel 9 is substantially parallel to the first support shaft 18. Recess 7A in body 2
The upper bottom outer surface 16 is parallel to the X-axis, and the side surface 15 of the lever member 3 facing the outer surface 16 makes surface contact with the outer surface 16 in the right-hand direction from the center of the first support shaft 18, as shown in FIG. Due to the contact, the lever member 3 cannot rotate clockwise in the drawing.

However, the side surface 15 draws an arc with a radius R from the center of the first support shaft 18 in the left-hand direction in the figure. The radius R is slightly smaller than the distance from the center of the first support shaft 18 to the outer surface 16, and
The lever member 3 can be turned only in the counterclockwise direction in the figure, that is, in the direction of arrow B. One end of the arc described by the radius R is connected to the engaging portion 19 having the tip of the curved surface. A connecting member 23 is movably supported by a second support shaft 22 standing parallel to the first support shaft 18 at a support arm 21A extending from the back surface 20 of the main body 2. The connection member 23 has a first engagement arm 25, a second engagement arm 24, and a first biasing spring 26. The connecting member 23 includes a lever member 3 located on the front surface 13 side of the main body 2 and a back surface of the main body 2.
Interposed between the lock member 28 described below located on the 20 side,
Link both. The free end of the second engagement arm 24 extending radially outward of the second support shaft 22 toward the front surface 13 in an opening 20A between the front surface 13 and the back surface 20 of the main body 2 has a smooth, convex surface.
24A, and is slidably pressed against the engaging portion 19 from the counterclockwise direction under the action of the first biasing spring 26. First biasing spring 26
Works to keep the lever member 3 always at the position shown in the figure, that is, to keep the surface 14 parallel to the Y axis. The first engagement arm 25 extends substantially horizontally toward the lock member 28 radially outward of the second support shaft 22. First engagement arm 25
A cam follower 27 is formed at a free end of the lock member.
28 is in contact with the cam surface 29a. The lock member 28 is connected to the first support shaft 18 at a support arm 21B extending from the back surface 20 of the main body 2.
The second urging spring is supported by a third support shaft 30 that stands in parallel with
It is biased clockwise by 30A. The rotation range of the lock member 28 depends on the cam surfaces 29a to 2 of the lock member 28.
9e, and is regulated by the side edge 31. In the figure, the side edge 31 is in surface contact with the outer surface 32 of the concave portion 7A of the main body 2 parallel to the Y axis, so that the lock member 28 cannot be rotated counterclockwise. The upper end of the side edge 31 is connected to the cam surface 29a in an arc, and the arc allows the lock member 28 to rotate clockwise. The cam follower 27 presses against the cam surface 29a to prevent the lock member 28 from rotating in the counterclockwise direction, and at the same time, contacts the cam surface 29b to prevent the lock member 28 from rotating in the clockwise direction. I have. On the other hand, the locking member 5
Fit into the engagement groove 33 having a width slightly larger than its diameter,
The lid panel 9 is locked to prevent its opening movement.

FIG. 5 shows a state where the lock with the locking member 5 of FIG. 4 is released and the lid panel 9 is opened. Lid panel 9
Is opened in the opening direction A, that is, in the counterclockwise direction, when the surface 14 is pushed near the free end of the lever member 3 and turned in the direction of the arrow B also in the counterclockwise direction, the engaging portion 19
While sliding on the free end protruding surface 24A of the engaging arm 24, the connecting member 2
3 is rotated clockwise against the first biasing spring 26. The cam follower 27 also turns in the same direction, disengages from the cam surfaces 29a, 29b that have been in contact, and shifts to the cam surfaces 29c, 29d to enable the rotation of the lock member 28. 2
The biasing spring 30A rotates clockwise to a position where the cam follower 27 and the cam surface 29e abut. This rotation proceeds while the locking member 5 is in contact with the side wall 33b of the engagement groove 33, so that the lid panel 9 turns slightly in the direction of arrow A, and finally, as shown in FIG. The lock member 28 is separated from each other, and the lid panel 9 can be freely opened. Each of the cam surfaces 29a, 29e regulates the end point of the counterclockwise and clockwise rotation of the lock member 28, and the first and second biasing springs 26, 30A of each of the cam surfaces 29b, 29d are effective. It is desirable that the cam follower 27 be at an appropriate angle with respect to the cam surface 29c so that the cam follower 27 slides smoothly.

As described above, the unlocking of the handle 1 on the lid panel 9 is performed. To close the lid panel 9 with respect to the frame member 12 to reach the locked state, a force is applied to the opened lid panel 9. When the locking member 5 is moved in the direction opposite to the arrow A, the locking member 5 automatically fits into the engagement groove 33, and then the locking member 5
The lock member 28 is rotated counterclockwise in contact with the wall 33b of the handle 28 to bring the handle 1 into the locked state shown in FIG.

(Effect) In the opening / closing device according to the present invention, the handle lever is configured to rotate by a pressing operation in a direction from the front side to the back side of the device main body, and if the lever is pressed in that direction. The lock on the lid panel can be released. This release operation does not necessarily need to be performed with a fingertip.
When both hands are closed with luggage, the operation can be performed using the back of the hand, the elbow, or the like, and the unlocking operation is easy.

If one hand can be used, for example, the thumb can be applied to the lever, and the remaining four fingers can be hung on the device body to perform the release operation, so that the force of the finger can be effectively applied to the lever, Moreover, the operation can be shifted to the opening operation of the lid panel following the releasing operation.

[Brief description of the drawings]

1 to 3 are a front view, a rear view and a side view of the handle of the present invention, and FIG. 4 is a sectional view taken along line XX of FIG. 3 when the handle is in a locked state. FIG. 5 shows the state when the lock is released in FIG. DESCRIPTION OF SYMBOLS 1 ... Device (handle), 2 ... Main body 3 ... Lever member, 5 ... Locking part (locking member) 9 ... Opening / closing body (lid panel), 12 ... Frame body 19 ... Engaging part, 22 ... Rotating shaft ( 23 ... connecting member, 24 ... second engaging arm 25 ... first engaging arm, 27 ... cam follower 28 ... locking member, 29a-29e ... cam surface 33 ... engaging portion (engaging groove)

Claims (1)

(57) [Scope of request for utility model registration] An opening / closing device with a lock mechanism capable of closing an opening / closing member that opens and closes by rotating with respect to a fixed frame member, wherein the device 1 is provided outside the opening / closing member. Body 2 fixed to
A lever member 3 attached to the front side of the main body 2, a lock member 28 rotatably attached to the rear side of the main body 2, and a lever member 3 and a lock member 28.
And a connecting member 23 interposed therebetween and rotatably attached to the main body 2, wherein the lever member 3 is moved in a counterclockwise direction from the front side to the rear side of the main body 2. A lever formed so as to be pivotable in the counterclockwise direction by pressing the lever, and an engaging portion located inside the main body 2 and in contact with the connecting member 23.
The lock member 28 is biased by a spring so as to rotate clockwise, and the peripheral surface of the member 28 is formed on the frame under the bias of the spring. An engagement portion 33 capable of preventing the opening and closing of the opening / closing body when the engagement portion 33 is disengageably engaged with the engaging portion, and cam surfaces 29a to 29e capable of engaging with the connection member 23, The connection member 23 is spring-biased so as to rotate counterclockwise about the rotation shaft 22 and is formed on a first engagement arm 25 extending radially outward from the rotation shaft 22. Cam follower
27 is pressed against a part 29b of the cam surface to
Is prevented from rotating clockwise, while the rotation shaft 22
A second engaging arm 24 extending radially outward from the second member presses the engaging portion 19 of the lever member 3 counterclockwise to urge the lever member 3 clockwise. When the lever is pressed in the counterclockwise direction against the bias in the clockwise direction, the engaging portion 19 of the lever member 3 presses the second engaging portion 24 of the connecting member 23 to rotate clockwise. With the movement, the cam follower 27 of the connecting member 23 moves from a portion 29b of the cam surface to a portion 29c to 29e of the cam surface which enables the rotation of the lock member 28, thereby locking the lock. The opening / closing device with a lock mechanism, characterized in that the rotation of the member 28 releases the engagement between the engaging portion 33 and the locking portion of the frame so that the opening / closing body can be opened.