JP2501495Y2 - Wooden frame clock - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden frame clock.

[0002]

2. Description of the Related Art A wood-made front frame (hereinafter referred to as a "wooden frame") is used as a so-called wooden frame timepiece in which wood is used for the front frame of the timepiece.
There is a structure in which a rear frame incorporating a timepiece mechanical body is brought into contact with the back surface of the, a glass is sandwiched between the two, and fastening portions provided at several places around the periphery are screwed and fixed.
The wooden frame is provided with a glass fitting portion formed by combining several pieces of wood and forming the front side inwardly on the inner peripheral portion of the assembled wooden frame. The periphery of the front of the glass comes into contact with the back of the glass fitting part, and the periphery of the back of the glass is pressed by the glass retainer of the rear frame, and the rear frame is screwed to the front frame to fix the three members together. ing.

However, the wooden frame is constructed by joining a plurality of wood piece members together to form a frame, and a structural step is formed at the joint. When the glass is attached to the wooden frame timepiece having such a configuration, the pressing force due to the contact between the glass and the glass pressing portion may not be uniform due to the step difference of the seam generated on the back surface of the glass fitting portion. For this reason, if a gap is created between the glass holding part of the rear frame and the glass and the fixation of the glass becomes unstable and the part where the gap is created is strongly tightened, this time the glass holding part locally presses it. The pressure may act to break the glass.

In order to bring the glass pressing portion of the rear frame and the glass into contact with each other with a uniform pressing force, it is necessary to process the wooden frame so that no step is formed at the seam. If such severe processing is required, it will be impossible in terms of cost. Therefore, as a measure for preventing the glass from being attached and preventing the glass from being damaged, a packing or the like is interposed between the glass pressing portion and the front glass to prevent a gap from being generated. In addition, a means for increasing the tightening allowance for screwing so that the tightening force is applied to the glass on an average basis is also adopted.

[0005]

As described above, when a packing is interposed between the glass and the glass pressing portion in order to prevent the glass from being damaged, the labor for attaching the parts and the packing is also increased. It becomes a cause of high cost such as need. In addition, when increasing the tightening allowance, it is necessary to be careful when tightening, so it is troublesome, and the tightening amount becomes large, and unreasonable force acts on the glass, which may damage the glass. Inconvenience occurs.

Therefore, an object of the present invention is to prevent breakage of the glass at the time of assembly by providing concave portions at the corners of the glass pressing portion for avoiding contact with the glass.

[0007]

In order to achieve the above object, a wooden frame timepiece of the present invention comprises a rear frame to which a timepiece mechanical body is mounted and a wooden frame fixed to the front face of the rear frame with screws. A frame,
In a wooden frame clock provided with a glass sandwiched between a glass retaining portion formed on the rear frame and a glass fitting portion provided on the back surface of the wooden frame, each corner portion of the glass retaining portion includes: Recesses are formed to avoid contact with the corners of the glass.

[0008]

[Function] When the periphery of the glass is sandwiched between the glass pressing portion and the glass fitting portion and the rear frame and the wooden frame are fixed by screwing, the force applied to the glass due to the unevenness of the seam of the wooden frame is improper. Be in equilibrium. Due to the effect of unbalanced forces, the corners of the glass tend to be displaced from their originally planned positions. At this time, the corner of the glass is
The glass enters into the concave portion of the corner of the glass holding part, avoids contact with the glass holding part, and imbalanced force does not work on the glass.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 2, the rear surface of the rear frame 2 having the timepiece mechanical body 1 attached to the center thereof is in contact with the rear surface of the wooden frame 3 and fixed by screws 4 and 4. Rear frame 2
The central portion of the timepiece protrudes to the front surface, and the above-mentioned timepiece mechanical body 1 is housed in the mounting recess 2a formed on the back surface. The periphery of the mounting recess 2a is a back surface 2b for hanging on a wall, and the periphery of the recess 2a projects outward to form a step for mounting the dial inside, and the wall of the step is projected forward to be described later. A glass pressing portion 2c that supports the glass 9 is formed. A dial plate 5 is provided in contact with the front surface of the mounting recess 2a of the timepiece mechanical body 1 and the step portion of the rear frame. A wooden frame 3 is provided on the outer peripheral portion of the glass pressing portion 2c.
Is provided with a flange portion 2d. At the upper end of the rear surface of the rear frame 2, there is provided a hooking hole 2e which is partially recessed and whose upper side is formed in parallel. An hour hand 6, a minute hand 7 and a second hand 8 are attached to a pointer shaft 1a projecting from the central portion of the front surface of the timepiece mechanical body 1.

Between the glass pressing portion 2c of the rear frame and the back surface of the glass fitting portion 3a which is projected on the inner peripheral portion of the wooden frame 3,
A glass 9 serving as a front cover is held.

As shown in FIG. 1, each of the four corners of the glass pressing portion 2c has 50 corners from the bent position.
About 0.5m from other tip surface at a distance of about mm
There is provided a recess 2f that is recessed by about m. This recess 2f
When the glass 9 is clamped between the rear frame 2 and the wooden frame 3 and the glass 9 is attached by screwing, the wooden frame 3 and the glass 9 are caused by the step generated at the joint of the wooden frame 3. It becomes an escape area when the glass 9 is distorted due to the misalignment.

As shown in FIG. 3, the glass 9 is distorted due to the misalignment between the wooden frame 3 and the glass 9, and the corner portion 9a thereof is distorted.
Is displaced and pressed by the glass pressing portion 2c, the glass 9 may be damaged. At this time, however, the corner portion 9a of the glass 9 can enter the recess 2f, as shown by the chain double-dashed line. Therefore, contact between them is avoided, and the pressing force between the glass 9 and the glass pressing portion 2c can be reduced. Therefore, the tightening force when screwing does not exert an unreasonable force on the glass 9, and the glass 9 can be prevented from being damaged.

As shown in FIG. 1, the flange portion 2 of the rear frame 2
A screw fixing portion 2g into which the screw 4 is inserted is formed at the center of each side of d. A sawtooth-shaped convex portion 2h is formed at the tip of the glass pressing portion 2c near each of the screw fastening portions 2g. The convex portion 2h has a height of about 1 mm, a pitch of about 2 mm, a length of a forming range of about 24 mm, and a width of about 2/3 of the width of the glass pressing portion. The tip of the convex portion 2h is formed to be higher than the front end surface of the glass pressing portion 2c by about 0.3 mm.

When the glass 9 is sandwiched between the glass pressing portion 2c and the glass fitting portion 3a and each side of the flange portion 2d is screwed by the screw 4, the back surface of the glass 9 and the tip portion of the glass pressing portion 2c are connected. At the portion where a is abutted, misalignment occurs due to the step created at the joint of the wooden frame 3, and there are places where it strongly hits the tip and where there is a gap. For this reason, there is a gap at a portion between the back surface of the glass 9 and the tip of the glass pressing portion 2c, and the glass fitting surface 3a has the wooden frame 3
In the portion retracted to the front side, the glass 9 is supported by the tip portion of the convex portion 2h.

On the other hand, the fitting surface 3a of the wooden frame 3 is the wooden frame 3
In the portion that has advanced to the back surface side of, the tip portion of the convex portion 2h is crushed by the pressing force when screwing, and the inside of the glass 9 and the tip portion of the glass pressing portion 2c are in contact with each other. As a result, even if there is a step at the seam of the wooden frame 3, when each side of the flange portion 2d is fastened with the screw 4 for assembly, the tip of the glass pressing portion 2c and the glass 9
The portion where a gap is generated between the supporting portion and the glass is supported by the convex portion 2h, and at the place where it strongly hits the glass 9, in order to absorb the force generated here by the crushing of the tip portion of these convex portion 2h, the glass by tightening is tightened. The force on 9 is reduced,
It becomes possible to avoid damage to the glass 9.

Although a wall clock has been described in this embodiment, the present invention is not limited to this, and can be applied to an alarm clock, a table clock, and the like. The height, shape, width, and the like of the convex portion are changed according to changes in the configuration of the wooden frame and the rear frame.

[0017]

As described above, since the concave portion for avoiding contact with the glass is provided in the corner portion of the glass holding portion of the rear frame, the wooden frame and the glass are not attached to each other when the frame body is assembled. Even if the corner of the glass is displaced due to the misalignment of, since this corner enters the recess, contact between the glass presser and the corner of the glass is avoided, and an excessive pressing force does not act on the glass. Glass breakage is avoided. Further, since it is not necessary to interpose packing or the like, labor for interposing packing is not necessary. Further, since the risk of glass breakage is reduced and the frame is easily assembled, the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a front view of a rear frame.

FIG. 2 is a sectional view of a main part of the present invention.

FIG. 3 is a partially enlarged cross-sectional view showing a state of a concave portion of a rear frame and a corner portion of glass.

[Explanation of symbols]

 1 Clock mechanical body 2 Rear frame 2c Glass holding part 2f Recessed part 3 Wooden frame 3a Glass fitting part 9 Glass 9a Glass corner part

Claims (1)

(57) [Scope of utility model registration request] 1. A rear frame to which a timepiece mechanical body is mounted, a wooden frame screwed and fixed to the front surface of the rear frame, a glass retainer formed on the rear frame, and a rear surface of the wooden frame. In a wooden frame timepiece provided with a glass sandwiched between a glass fitting portion provided in, each corner portion of the glass pressing portion has a recess for avoiding contact with the corner portion of the glass. A wooden frame clock characterized by being formed.