JP2001304212A - Abutting and separating structure for lock piece for locking member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform abutment and separation of a lock piece to lock a member by simple structure. SOLUTION: A working lever 3 is disposed in a casing 2, its upper part is protruded from the upper part of the casing, and an expansion part 5 is formed at its lower part. The working lever is energized in a manner to be retracted in the casing and a lock piece 4 to lock a member is disposed in the casing and opposite to the working lever. Its upper part is protruded from the upper part of the casing and situated in a manner to make contact with and separate from the working lever. The locking piece is energized against the working lever side and its upper part is situated in a state to make contact with the working lever. A protrusion part 12 corresponding to an expansion part formed at the working lever is formed at the lower part of the lock piece. The protrusion part is engaged with the expansion part when the working lever is pulled upward against energization. The locking piece is pressed against the locking piece and its upper part is separated away from the working lever and the locking state of the member locked at the locking piece is released.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an abutment / separation structure of a locking piece for locking a member, and more specifically, a member capable of abutting and separating a locking piece by a simple structure. The present invention relates to an abutment / separation structure of a locking piece for performing engagement.

[0002]

2. Description of the Related Art Conventionally, for example, a desk top plate, a work table, etc. having a simple structure are unlocked and rotated and folded unnecessarily, so that they can be used effectively without space. Such is known.

[0003]

However, there has been a problem that the structure for locking and releasing the desk top plate and the work table is complicated and the cost is high.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and in particular, has a simple structure in which a locking piece for locking a member can be brought into contact with and separated from the locking piece. It is an object to propose a separation structure.

[0005]

As a means for solving the above-mentioned problem, a contacting / separating structure of a locking piece for locking a member according to the present invention includes an operating rod in a casing. An upper portion of the operating rod is protruded from an upper portion of the casing, a bulge is formed at a lower portion, and the operating rod is biased to enter the casing. A locking piece for locking a member is provided in the casing so as to face the operating rod, and an upper portion of the locking piece protrudes from an upper portion of the casing and is connected to the operating rod. Contact,
The locking piece is urged toward the operating rod, and the upper portion thereof is provided in contact with the operating rod. The lower portion of the locking piece has a bulging portion provided on the operating rod. A corresponding projection is formed, and this projection engages with the bulging portion when the operating rod is pulled upward against the bias and presses the locking piece against the bias. The upper part is separated from the operating rod to release the locked state of the member locked by the locking piece.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a contact / separation structure of a locking piece for locking a member according to the present invention, and a contact of a locking piece for locking this member. The separating structure 1 is mainly constituted by a metal casing 2, a metal operating rod 3 disposed in the casing 2, and a metal locking piece 4.

The casing 2 is formed of a hollow and long member having a rectangular shape in a plan view, and has a U-shaped projection 2a formed over the entire length in the longitudinal direction at the front center. An opening 2b is formed in a portion of the casing 2 except for the upper and lower portions of the back surface.

The operating rod 3 disposed in the casing 2 has an inverted L-shape, and its lower part is accommodated in a U-shaped projection 2a provided on the casing 2. Also,
The upper part of the operating rod 3 protrudes from the upper part of the casing 2. Further, a bulging portion 5 is provided below the operating rod 3.
Is formed, and the bulging portion 5 is provided so as to abut against a lower portion of a locking piece 4 described later to prevent the operating rod 3 from moving downward more than necessary. Reference numeral 6 denotes a spring member. One end of the spring member 6 is locked in a locking groove 7 provided in the bulging portion 5 and the other end is connected to a locking claw piece 8 provided on the back surface of the protruding portion 2a. Locked. Thereby, the operating rod 3
Are biased so as to be immersed in the casing 2.

Next, a locking piece 4 is disposed in the casing 2 so as to face the operating rod 3, and a lower portion of the locking piece 4 is located near the center of the casing 2. Is pivotally supported by the support shaft 10 in the rotation state. Also, the upper part of the locking piece 4 protrudes from the upper part of the casing 2,
Further, it is provided so as to be able to contact and separate from the operating rod 3.
Further, an inclined surface 11 is formed in front of the upper portion of the locking piece 4, and a bulging portion 5
Are formed. Reference numeral 13 denotes a substantially U-shaped leaf spring disposed on the back side of the locking piece 4. The upper portion of the leaf spring 13 is in contact with the back surface of the locking piece 4, and the lower portion is the case. It is inserted into a locking groove 15 provided in a lower part in the thing 2.

According to the abutment / separation structure 1 of the locking piece for locking the above-mentioned member, the operating rod 3 is provided below the operating rod 3 by pulling the operating rod 3 upward against the bias. The bulging portion 5 moves upward, and the bulging portion 5 engages with a protruding portion 12 provided at a lower portion of the locking piece 4, thereby pressing the locking piece 4 against urging. The upper part is separated from the operating rod 3 and a member (not shown) locked on the upper part of the locking piece 4 is moved to the operating rod 3.
And the locking piece 4 can be dropped from the gap between the locking piece 4 and the locking state. When the operating rod 3 is released, the locking piece 4 returns, so that the member can be locked again. As described above, the members can be locked and released by the simple structure, and the manufacturing cost can be reduced.

FIG. 3 shows an example in which the contact / separation structure 1 of the locking piece for locking the member of the present invention is used for a desk 20 having a simple structure. In this case, the contact / separation structure 1 of the locking piece is attached to one support member 21, and a top plate 23 is attached to the other support member 22 by a support shaft 24.
And is rotatably supported via. A frame member (member) 25 is attached to the side of the top plate 23 of the desk 20, and the front end of the frame member 25 is locked on the upper part of the locking piece 4. According to this usage example, when the operating rod 3 is pulled upward against the bias, the bulging portion 5 provided at the lower portion of the operating rod 3 moves upward as shown in FIG. The engaging portion 5 engages with a protruding portion 12 provided at a lower portion of the locking piece 4, whereby the locking piece 4 is pressed against the bias and the upper portion thereof is actuated by the operating rod 3.
Frame member 25 locked at the upper portion of locking piece 4 while being separated from
Is dropped from the gap created between the operating rod 3 and the locking piece 4, the locking state is released, and the top plate 23 can be rotated around the support shaft 24 as a fulcrum to be folded. Sometimes, space can be effectively used without disturbing.

[0013]

As described above, according to the abutment / separation structure of the locking piece for locking the member according to the present invention, the case is provided.
An operating rod is disposed in the shing, an upper part of the operating rod protrudes from an upper part of the casing, and a bulging portion is formed in a lower part, so that the operating rod is immersed in the casing. Energized, a locking piece for locking a member is provided in the casing so as to face the operating rod, and an upper portion of the locking piece projects from an upper portion of the casing. The engaging piece is provided so as to be able to contact and separate from the operating rod, the locking piece is urged toward the operating rod, and an upper portion thereof is provided in contact with the operating rod, and an operating rod is provided below the locking piece. And a protrusion corresponding to the bulging portion provided in the boss. The protruding portion engages with the bulging portion when the operating rod is pulled upward against the urging, and the locking piece is attached. Pressing against the force to separate the upper part from the operating rod and release the locked state of the member locked by the locking piece. Since a simple structure that is, it is possible to suppress the cost low. In addition, the unlocking of the member locked by the locking piece can be reliably performed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a contact / separation structure of a locking piece for locking a member according to the present invention.

FIG. 2 is an explanatory diagram showing an internal structure of a contact / separation structure of a locking piece for locking the member.

FIG. 3 is a perspective view of a desk having a simple structure to which a contacting / separating structure of locking pieces for locking the member is applied, with a part thereof omitted;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Contacting / separating structure of locking pieces for locking members 2 Casing 3 Operating rod 4 Locking piece 5 Swelling portion 12 Projecting portion

Claims (1)

[Claims] An operating rod is disposed in the casing, and an upper portion of the operating rod projects from an upper portion of the casing.
A bulging portion is formed at a lower portion, and the operating rod is biased so as to be immersed in the casing, and the member is engaged in the casing so as to face the operating rod. The upper end of the locking piece protrudes from the upper part of the casing and is provided so as to be able to contact and separate from the operating rod, and the locking piece is biased toward the operating rod. An upper part thereof is provided in contact with the operating rod, and a projection corresponding to a bulge provided on the operating rod is formed below the locking piece, and the projection is provided with the operating rod. When it is pulled upward against the force, it engages with the bulging portion and presses the locking piece against the bias to separate the upper part from the operating rod and is locked by the locking piece. Abutting / separating of locking pieces for locking the member, wherein the locking state of the member is released. Elephants.