JPH076430Y2 - Door catch device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a door catching device used for simple closing and holding when opening and closing a door of furniture or the like.

2. Description of the Related Art Conventionally, door catching devices used for simple closing and holding when opening and closing doors of furniture and the like have generally not been provided with an adjusting means for adjusting a positional relationship with a magnetically attached part once installed. . Therefore, the door often does not close due to a mounting error, a variation in work precision, a deformation of the door after installation, and the like.

Further, for the purpose of eliminating this drawback, there is proposed a device capable of adjusting the advancing / retreating of the mounting frame as in the invention described in Japanese Utility Model Publication No. 56-29493. Since it adjusts by rotating the screw etc. from
The workability for adjustment was extremely poor.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The present invention is intended to solve the problems as described above, and in a door catch device used for simple holding of a door when opening and closing a furniture door, adjustment of forward and backward movement of a magnet body is performed. The present invention intends to obtain a low-priced product by making it possible to easily carry out regardless of the conditions of the installation place and simplifying the configuration.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention allows one end of a magnet body to project and be fixed to a mounting frame, and the mounting frame can be moved forward and backward to a fixing member for fixing to the installation portion. The fixing member is provided with a long hole-shaped cam groove in a direction intersecting with the advancing / retracting direction, and the cam is rotatably provided in the cam groove from the direction intersecting with the advancing / retreating direction of the mounting frame through the mounting frame. The cam shaft supports the insertion shaft, and the cam shaft is provided with an insert portion for rotatably inserting in a circular adjustment opening opened in the mounting frame. A projection for rotation regulation that releasably engages with the engaging portion provided on the end of the insertion portion eccentric from the shaft center, and a cam piece that fits into the cam groove is formed to protrude. By the rotation of the shaft,
The mounting frame is formed so that it can be moved back and forth.

Effects Since the present invention is configured as described above, if the cam shaft is rotated using a rotating tool such as a screwdriver after the device is installed and fixed to the installation portion of furniture or the like, the cam shaft can be rotated. Accordingly, the cam groove provided on the fixing member is pressed.

The fixing member is installed and fixed to the installation portion, whereas the cam shaft is inserted into the cam groove via the mounting frame and the mounting frame is mounted so as to be movable back and forth with respect to the fixing member. Therefore, the mounting frame can be moved back and forth.

By this forward / backward movement, depending on the position of the magnetically attached portion such as the door,
The forward / backward adjustment of the magnet body can be easily performed. In this way, the magnet body can be moved back and forth only by rotating the cam shaft, so that the structure of the device can be simplified.

Further, since the rotation of the cam shaft is not adjusted by rotating a screw or the like from the advancing / retracting direction surface of the mounting frame, but is performed from the direction surface intersecting the advancing / retracting direction of the mounting frame, the device is fixed. It is possible to make adjustments with good workability without being disturbed by the wall surface of the installation part of furniture or the like.

In addition, the cam shaft is provided with an insertion portion that is rotatably inserted in a circular adjustment opening that is opened in the mounting frame, and a rotation restricting protrusion is projected on the outer peripheral edge of the flange of the insertion portion. Therefore, the restricting protrusion releasably engages with the engaging portion provided in the mounting frame, so that the engagement state due to appropriate friction can be obtained, and the cam shaft can be stopped at an appropriate position. It is possible to fix the magnet body at any position.

Also, on the cam shaft, on the end surface of the insertion part that is eccentric from the shaft center,
Since the cam piece that fits into the cam groove is formed to project, it is possible to easily forcibly move the mounting frame forward and backward with the rotation of the cam shaft.

An embodiment of the present invention will be described below with reference to the drawings.
Reference numeral (1) is a mounting frame, in which a magnet body (4) having a magnet plate (3) interposed between two yokes (2) is inserted and fixed, and a magnet body is inserted through a projecting opening (5) provided on a side surface. One end of (4) is projected. Further, the mounting frame (1) is mounted on a fixing member (7) for fixing to an installation portion (6) such as furniture so as to be able to move back and forth.

To mount the mounting frame (1) on the fixing member (7), engaging protrusions (8) are provided at both ends of the mounting frame (1), and the engaging protrusions (8) are formed on the fixing member (7). This is done by slidably engaging the engaged recess (9).

Further, at both ends of this fixing member (7), a fixing portion (12) for fixing to the installation portion (6) of furniture or the like is formed, and a fastener (13) such as a screw is attached to this fixing portion (12). Insertion hole (1
4) forming.

Further, the fixing member (7) is provided with a semicircular downward projecting portion (15) projecting on the side opposite to the projecting opening (5) side of the mounting frame (1), and the lower projecting portion (15) is provided with this downward projecting portion (15). An elongated hole-shaped cam groove (16) is formed in a direction intersecting the sliding direction of the mounting frame (1).

Further, the mounting frame (1) at a position corresponding to the cam groove (16)
A semicircular upper protrusion (17) is provided on the upper part of the upper part, and a circular adjustment opening (18) is formed through the upper protrusion (17).

Then, the cam shaft (19) is axially supported by the cam groove (16) through the adjustment opening (18) in the direction intersecting the advancing / retreating direction of the mounting frame (1). The cam shaft (19) has an engagement groove (21) for engaging a driver or the like with one end surface (2
The insertion portion (23) provided in 2) is rotatably inserted into the adjustment opening (18).

Further, in this inserted state, a flange (24) is projected on the outer circumference of the insertion portion (23) located inside the upper projection (17), and the sawtooth-shaped regulation formed on the outer circumference of the flange (24). The protrusion (25) is detachably engaged with the engaging portion (26) provided on the inner surface of the upper protruding portion (17) to regulate the rotation of the cam shaft (19). And again, the insertion part (2
A cam piece (28) for fitting into the cam groove (16) is projected from the other end surface (27) of (3).

In the structure configured as described above, the fixing portion (12) is located on the installation portion (6) for furniture and the like, and is fixed to the installation portion (6) by the fastener (13) and the door (29) for furniture and the like. Then, the magnetized portion (31) is fixed.

Then, when the positions of the magnetic attachment part (31) and the mounting frame (1) do not match, a turning tool such as a screwdriver is used to engage the engaging groove (21).
Then, the cam shaft (19) is rotated, and the mounting frame (1) is moved back and forth to adjust the position with respect to the magnetized portion (31).

Then, as shown in FIG. 2, when the mounting frame (1) is retracted and the cam shaft (19) is rotated, the cam piece (28) rotates eccentrically from the shaft center and the fixing member (7). The cam groove (16) formed in the downward projecting portion (15) is pressed. The cam groove (16) converts the rotational force of the cam piece (28) into a linear motion.

And, while the fixing member (7) is installed and fixed to the installation portion (6), the cam shaft (19) is inserted into the cam groove (16) via the mounting frame (1) and is mounted and mounted. Frame (1) is
Since it is attached to the fixed member (7) so that it can move forward and backward,
The mounting frame (1) can be moved back and forth.

Due to this forward / backward movement, the magnetic attachment (3
The mounting frame (1) can be easily moved back and forth according to the position of 1). Specifically, as shown in FIG. 2, when the mounting frame (1) is retracted, the cam shaft (19) is moved to 1 /
By rotating four times, the mounting frame (1) can be moved to a position of half the maximum protruding amount as shown in FIG. Further, if the cam shaft (19) is rotated by 1/2, the mounting frame (1) can be in the maximum protruding state as shown in FIG.

In this way, since the mounting frame (1) can be moved back and forth only by rotating the cam shaft (19), the magnet body (4) fixed to the mounting frame (1) and the magnetic attachment can be simplified while simplifying the structure of the device. It is possible to obtain a surely magnetically attached state with the part (31), and the door (29) for furniture or the like will not be closed.

Further, the rotation of the cam shaft (19) is not performed by rotating a screw or the like from the advancing / retracting direction surface of the mounting frame (1), but is performed from the side surface direction intersecting the advancing / retracting direction of the mounting frame (1). Therefore, it is possible to perform the adjustment with good workability without being disturbed by the wall surface of the installation portion (6) for fixing the device such as furniture.

Further, the cam shaft (19) is provided with an insertion portion (23) which is rotatably inserted into the circular adjustment opening (18) opened in the mounting frame (1), and protrudes to the outer periphery of the insertion portion (23). Flange (2
A protrusion (25) for regulating rotation is projected on the outer peripheral edge of (4).

Therefore, the restricting protrusion (25) releasably engages with the engaging portion (26) provided in the downward protruding portion (15), thereby obtaining an engagement state due to appropriate friction, and the camshaft ( 19)
Can be stopped at an appropriate position, and the mounting frame (1) can be fixed at an arbitrary position.

Further, the cam shaft (19) has an engaging groove (21) for the insertion portion (23).
Since the cam piece (28) fitted into the cam groove (16) is formed eccentrically from the shaft center on the surface opposite to the surface on which the cam shaft (19) is rotated, the mounting frame (1) ) Can be easily forced to retreat.

Further, even if the door (29) is distorted over time and the door (29) cannot be closed, the mounting frame (1) can be easily moved back and forth, without the need of a specialist. The furniture user can easily perform the adjustment by the above means.

Effect of the Invention Since the present invention is configured as described above, in the door catch device used when the opening and closing of the door of furniture or the like is simply closed and held, the rotation of the cam shaft is changed in the advancing and retracting direction of the mounting frame. Since it is performed from the side, the workability for adjustment is good, and the adjustment can be performed without being obstructed by the wall surface of the installation part such as furniture to which the device is fixed. Further, since the structure of the device is simple, a small and inexpensive product can be obtained.

Also, even if the door becomes distorted due to the passage of time and the door does not close, the adjustment is easy, and the furniture user can easily perform the adjustment by the above means without the need for a specialist. be able to.

In addition, the restricting protrusion engages with the engaging portion provided in the mounting frame in a releasable manner, so that the engagement state due to appropriate friction can be obtained, and the cam shaft can be stopped at an appropriate position. Therefore, the magnet body can be fixed at any position.

Also, on the cam shaft, on the end surface of the insertion part that is eccentric from the shaft center,
Since the cam piece that fits in the cam groove is formed to project, it is possible to easily forcibly move the mounting frame forward and backward with the rotation of the cam shaft.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is an exploded perspective view, FIG. 2 is a partially cutaway plan view showing a retracted state of a mounting frame, and FIG. 3 is an intermediate protruding state of a mounting frame. FIG. 4 is a partially cutaway plan view showing a state in which the mounting frame is maximally projected, and FIG. 5 is an enlarged sectional view taken along line AA of FIG. (1) …… Mounting frame (6) …… Installation part (7) …… Fixing member (16) …… Cam groove (18) …… Adjustment opening (19) …… Cam shaft (23) …… Insertion part ( 24) …… Flange (25) …… Regulating projection (26) …… Engagement part (28) …… Cam piece

Claims (1)

[Scope of utility model registration request] 1. An end of a magnet body is projected and fixed to a mounting frame,
This mounting frame is attached to a fixing member for fixing to the installation portion so as to be able to advance and retreat, and this fixing member is provided with an elongated hole-shaped cam groove in a direction intersecting the advancing and retracting direction. A cam shaft is rotatably supported by an insertion frame through a mounting frame in a direction intersecting the forward / backward direction, and the cam shaft is provided with an insertion portion for rotatably inserting into a circular adjustment opening opened in the mounting frame. ,
On the outer peripheral edge of the flange projecting to the outer periphery of the insertion section, a projection for restricting rotation, which releasably engages with the engaging section provided in the mounting frame, is projected, and on the end surface of the insertion section eccentric from the axial center. A door catch device, characterized in that it is formed by projecting a cam piece that fits in a cam groove, and that the mounting frame can be moved forward and backward by the rotation of the cam shaft.