JP3214140U - Locking structure - Google Patents

Abstract

To provide a locking structure with high locking reliability, little processing, and easy assembly. For example, it is a locking structure for locking a front frame provided in a crib to be used in a raised position to a wife frame, and is inserted into a horizontal hole 22c formed in a vertical member 22a of the wife frame. The locking tool 10 to be fitted and detached is attached to the front frame 24. The locking tool 10 includes a push-in portion that fits in the lateral hole 22c at the tip and a male insertion screw 11 that pushes the push-in portion and a knob attachment portion at the other end, a pull-in hole that draws the push-in portion, and the The socket 12 includes a female screw 12 that engages with a male screw, and a knob 13 attached to the knob mounting portion. The socket 12 is press-fitted into a through hole 24b formed in the front frame 24, and the knob 13 is rotated. Thus, the pushing portion is fitted or detached from the lateral hole 22c. [Selection] Figure 3

Description

  The present invention mainly relates to a locking structure for a movable member in a woodwork product.

As a locking means for a movable member that moves close to the surface of the fixed member, a structure in which a push rod provided on the movable member is pushed into a lateral hole or a screw hole formed in the fixed member to be fitted or screwed is widely used. (For example, Patent Document 1).
Patent Document 1 discloses a structure in which a front frame of a crib can be moved up and down and locked to a wife frame at a raised position.

As shown in FIG. 6, the crib is enclosed in a rectangular shape by wife frames 21, 22 and a rear frame 23 and a front frame 24, and a mat 27 is installed therein. The front frame 24 is provided so that it can move up and down. The locking tool 40 for locking to the end frames 21 and 22 at the raised position is provided on both side ends. Specifically, as shown in FIG. 7, a horizontal hole 22c is provided in the upper portion of the vertical member 22a at the front end of the end frame 22, and a stepped through hole 24b is formed in the vertical frame member 24a of the front frame 24. The tool 40 includes a rod portion 45 and is provided so as to be held by a spring 43 so as to be movable in the axial direction.
Since it is comprised in this way, the spring 43 is compressed by pulling the knob 31, the rod part 45 is drawn into the through-hole 24b, and the front frame 24 can be lowered.

Utility model registration 3115365

The locking tool of Patent Document 1 is not particularly difficult to process and is easy to handle.
However, since it is held only by the spring 43 while being locked, and the spring 43 is compressed by some beat, the locking tool is released, so there is some anxiety.
Further, the processing of the through hole 24b needs to be performed from both sides, and the assembly of the locking tool 40 must be performed separately, so that it takes time and the locking tool 40 has many processing parts and is expensive. .

  The present invention has been developed in view of the above points, and the object of the present invention is to provide a locking structure with high locking reliability, low processing of members, and easy assembly. It is aimed.

The locking structure of the present invention is configured as follows in order to achieve the above object.
That is, in a locking structure in which a locking member is provided on a movable member that moves on the surface of the fixing member, and the locking tool is fitted into a horizontal hole formed in the fixing member and locked. A push-in portion that is pushed out and fitted into the lateral hole at the tip and a male insertion screw that pushes out the push-in portion and has a knob at the other end; and a push-in portion that is press-fitted into a through hole formed in the movable member And a socket provided with a female screw that engages with the male screw, and the knob is rotated so that the pushing portion is fitted or removed from the lateral hole.

The locking tool is press-fitted into a fitting insertion screw having a push-in portion and a male screw that are pushed out and fitted into a lateral hole formed in the fixed member and having a knob at the other end, and a through-hole formed in the movable member, and retracts the push-in portion. And a socket having a female screw engaged with the male screw.
Although the material and processing means are not particularly limited, as described in claim 2, it is desirable that the molded product is a synthetic resin, and the male screw and the female screw meshing with the male screw are square screws. In addition, it is good to provide the receiving material made from a synthetic resin in the horizontal hole of a fixing member.
In order to attach the locking tool to the movable member, it is only necessary to screw a fitting insertion screw into the socket and press-fit a pin with a knob attached to the tip into a through hole formed in the movable member.

This locking structure is suitable for use in woodwork products and synthetic resin products, and the object can be applied to various objects such as furniture and playground equipment.
In particular, as described in claim 3 and claim 4, it is suitable for locking the front frame that moves the crib up and down and for supporting the table that the infant chair rotates.

  The locking structure according to the present invention is provided with a push-in portion that fits into a lateral hole of a fixed member at the tip, a fitting screw that has a male screw that pushes the push-in portion and has a knob at the other end, and a through-hole formed in the movable member Since the socket is provided with a pull-in hole that is press-fitted into the push-in portion and a female screw that engages with the male screw, the locking is highly reliable, simple, easy to assemble, and has great practical effects. It is.

It is a front view which shows the whole locking tool which is embodiment of this invention, and shows the cross section from the center upwards. The front view which shows each member of a locking tool similarly, (a) is a screw rod, (b) is a socket (c), is picked, (d) is a receiving material. FIG. 6 is an enlarged view of the baby bed of FIG. 6 taken along the line AA, showing an embodiment to which the locking tool 10 of the present application is applied. It is a perspective view which shows the whole infant chair same as the above. FIG. 5 is an enlarged view taken along line BB in FIG. It is a perspective view which shows the whole crib. It is an AA enlarged view of FIG. 6, and the attachment part of the conventional latching tool is shown.

Embodiments of the locking structure of the present invention will be described below with reference to the drawings.
FIG. 1 is a front view showing an entire locking tool 10 used in this locking structure, and shows an upper half in section. FIG. 2 is a detailed view of members constituting the locking tool 10.
In this locking structure, the movable member is provided with a locking tool 10 provided with a pushing portion 11a protruding and retracting with a screw, and the pushing portion 11a is fitted into a lateral hole formed in the fixed member to lock the movable member. Is.

The locking tool 10 includes an insertion screw 11, a socket 12, and a knob 13. Here, the material is made of synthetic resin.
The insertion screw 11 includes a push-in portion 11a that is inserted into a horizontal hole, a male screw 11b that is a square screw, and a knob attachment portion 11c, and a groove 11d is provided in the attachment portion 11c.
The socket 12 is press-fitted into a through-hole provided in the movable member, and is provided with a female screw 12a that fits into the male screw 11b of the fitting insertion screw 11 and a retracting portion 12b that retracts the pushing portion 11a. Yes. The knob 13 is attached to the knob mounting portion 11c of the insertion screw 11 and is provided with a fitting hole 13a having a step portion 13b. The knob 13 is fixed by pushing the fitting hole 13a into the attachment portion 11c and fitting the step portion 13b into the groove 11d of the attachment portion 11c.
In FIG. 2, reference numeral 14 denotes a receiving material, which is attached to a lateral hole of a fixing member into which the pushing portion 11a is fitted.

In order to assemble the locking tool 10 with each member of FIG. 2, the insertion screw 11 is screwed into the socket 12, and the rear end of the pushing portion 11 a is brought into contact with the wall 12 d of the drawing hole 12 b of the socket 12. It is only necessary to push the fitting hole 13a of the knob 13 into the knob attachment portion 11c of the knob 11 and fit it to the knob portion 11b and to fix the locking groove 11d to the stepped portion 13b.
Then, the outer periphery 12c of the socket 12 of the locking tool 10 is press-fitted into the through hole of the movable member. In this press-fitting operation, it is easy to lightly strike the head of the knob 13 with a wooden hammer. The receiving material 14 is press-fitted into the lateral hole of the fixing member.

Next, the Example which applied this latching tool 10 to the front frame 24 of the crib 20 demonstrated above is described based on FIG.
As shown in FIG. 6, the crib 20 is enclosed in a rectangular shape by wife frames 21, 22 and a rear frame 23 and a front frame 24, and a mat 27 is installed therein. The front frame 24 is configured to be slidable up and down. Is lowered and released. The front frame 24 is provided with a locking tool 10 for locking to the wife frames 21 and 22 at the raised position. That is, the locking tool 10 is attached instead of the conventional locking tool 40.

  The attachment of the locking tool 10 is performed by pushing the locking tool 10 into the through hole 24b provided in the upper part of the vertical frame member 24a of the front frame 24 from the push-in portion 11a before attaching the front frame 24 to the crib 20. . At this time, the fitting screw 11 is firmly screwed into the socket 12, the rear end of the pushing portion 11a is brought into contact with the wall 12d of the drawing hole 12b of the socket 12, and the locking tool 10 is press-fitted into the through hole 24b. . Then, the receiving member 14 is press-fitted into a horizontal hole 22 c provided at a predetermined position on the top of the vertical member 22 a at the front end of the end frame 22, and the front frame 24 is attached to the crib 20. At this time, the locking tool 10 rotates the knob 13 so that the pushing portion 11 a is retracted into the socket 12. The locking tool 10 is attached by the above operation, and by rotating the knob 13, the pushing portion 11a is inserted into and removed from the horizontal hole 22c of the vertical member 22a (fixing member), whereby the front frame 24 is moved to the end frame. 22 can be locked and released.

Next, as another embodiment, a description will be given based on FIGS. 4 and 5 in which the locking tool 10 is applied to a table support of an infant chair.
This infant chair 30 has been used for a long time, and has a feature that the distance between the table, the seat board and the footrest board can be easily changed as the infant grows up.
As shown in FIG. 4, this chair is provided with a plurality of insertion grooves 36 opposed to a pair of left and right plate-like legs 31 that are opposed to each other in a tilted state with a leg base 33 at the lower end. This is provided with a seat plate 34 and a footrest plate 35, and a backrest 32 is attached to the upper portion.

  And the table support 37 which fixedly provided the table 7 between the upper part of the plate-shaped leg 31 is connected with the connection pin 38 so that rotation to an up-down direction is possible. The table support 37 is prevented from rotating downward by a stopper 39 abutting on the plate-like leg 31 projecting from the table support 37, and the table 37a is locked to the plate-like leg 31 by the locking tool 10. It is prevented from turning upward. In order to rotate the table support 37 upward, the knob 13 of the locking tool 10 must be rotated to retract the push-in portion 11a into the socket 12, so that the table 37a does not rise unexpectedly and is safe. It is.

  The locking tool 10 is assembled in the state shown in FIG. 1 as described above, and the locking tool 10 is pushed into the through hole 37b provided in the table support 37 from the pushing portion 11a side. At this time, the fitting screw 11 is screwed into the socket 12 until the rear end of the pushing portion 11a comes into contact with the wall 12d of the drawing hole 12b of the socket 12. In this state, the locking tool 10 may be press-fitted into the through hole 37b of the table support 37. Since this operation is the same as described above, it will be omitted.

DESCRIPTION OF SYMBOLS 10 Locking tool 11 Insertion screw 11a Pushing part 11b Male screw 11c Knob attachment part 11d Locking groove 12 Socket 12a Female screw 12b Pull-in hole 12c Outer periphery 12d Wall 13 Knob 13a Fitting hole 13b Step part 14 Receiving material 20 Baby beds 21, 22 Wife frame 22a Vertical member 22c Horizontal hole 23 Rear frame 24 Front frame 24a Vertical frame member 24b Through hole 27 Mat 30 Infant chair 31 Plate leg 31a Horizontal hole 32 Backrest plate 33 Leg base part 34 Seat plate 35 Leg mounting base 36 Insertion groove 37 Table support 37a Table 37b Through hole 38 Connecting pin 39 Stopper 40 Locking tool 41 Knob 43 Spring 45 Rod part

Claims (4)

  In a locking structure in which a locking member is provided on a movable member that moves on the surface of the fixing member, and the locking tool is fitted and locked in a lateral hole formed in the fixing member, the locking tool is pushed out. And a push-in portion fitted into the lateral hole at the tip, a male screw for pushing out the push-in portion, a fitting insertion screw having a knob at the other end, and a press-fitted into the through-hole formed in the movable member. A locking structure comprising: a pull-in hole and a socket provided with a female screw that engages with the male screw, wherein the knob is rotated so that the push-in portion is fitted to or detached from the lateral hole.   The locking structure according to claim 1, wherein the insertion screw and the socket are made of synthetic resin, and the male screw and the female screw meshing with the male screw are square screws.   The fixing member is a vertical member at the front end of the end frame of the crib made of wood, and a horizontal hole into which a pushing portion of a locking tool is fitted is formed at an upper portion thereof, and the movable member is close to the surface of the vertical member. The locking structure according to claim 1, wherein the locking structure is a vertical frame member of a front frame that moves in a vertical direction, and a through hole is formed in an upper portion thereof and a socket of a locking tool is press-fitted.   The fixed member is a plate-like leg in a woodworking infant chair, and a horizontal hole is formed on the upper part to fit the pushing portion of the locking tool, and the movable member can be turned up and down on the plate-like leg. The locking structure according to claim 1 or 2, wherein the table support is connected, a through hole is formed in an upper portion thereof, and a socket of the locking tool is press-fitted.

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